diff options
| author | Thierry Reding <[email protected]> | 2006-10-14 03:46:41 +0000 |
|---|---|---|
| committer | Thierry Reding <[email protected]> | 2006-10-14 03:46:41 +0000 |
| commit | 1ddf606332a188e46a47607cd41eb5d81bdf4c8a (patch) | |
| tree | 8cb51078803106d87aedeae7bbd7a762a0d369d1 /progs/samples | |
Import Mesa 6.5.1 (MesaLib, MesaDemos, MesaGLUT).
Diffstat (limited to 'progs/samples')
39 files changed, 13618 insertions, 0 deletions
diff --git a/progs/samples/Makefile b/progs/samples/Makefile new file mode 100644 index 00000000000..063008dccff --- /dev/null +++ b/progs/samples/Makefile @@ -0,0 +1,48 @@ +# progs/samples/Makefile + +TOP = ../.. +include $(TOP)/configs/current + +INCDIR = $(TOP)/include + +LIB_DEP = $(TOP)/$(LIB_DIR)/$(GL_LIB_NAME) $(TOP)/$(LIB_DIR)/$(GLU_LIB_NAME) $(TOP)/$(LIB_DIR)/$(GLUT_LIB_NAME) + +PROGS = accum bitmap1 bitmap2 blendeq blendxor copy cursor depth eval fog \ + font line logo nurb olympic overlay point prim quad select \ + shape sphere star stencil stretch texture tri wave + + +##### RULES ##### + +.SUFFIXES: +.SUFFIXES: .c + +.c: $(LIB_DEP) + $(CC) -I$(INCDIR) $(CFLAGS) $< $(APP_LIB_DEPS) -o $@ + + +##### TARGETS ##### + +default: $(PROGS) + + +sphere: sphere.o readtex.o + $(CC) -I$(INCDIR) $(CFLAGS) sphere.o readtex.o $(APP_LIB_DEPS) -o $@ + +sphere.o: sphere.c readtex.h + $(CC) -c -I$(INCDIR) $(CFLAGS) sphere.c + +readtex.c: $(TOP)/progs/util/readtex.c + cp $< . + +readtex.h: $(TOP)/progs/util/readtex.h + cp $< . + +readtex.o: readtex.c readtex.h + $(CC) -c -I$(INCDIR) $(CFLAGS) $< -o $@ + + +clean: + -rm -f $(PROGS) + -rm -f *.o *~ + -rm -f readtex.c readtex.h diff --git a/progs/samples/Makefile.DJ b/progs/samples/Makefile.DJ new file mode 100644 index 00000000000..cda4e059418 --- /dev/null +++ b/progs/samples/Makefile.DJ @@ -0,0 +1,85 @@ +# Mesa 3-D graphics library +# Version: 4.0 +# +# Copyright (C) 1999 Brian Paul All Rights Reserved. +# +# Permission is hereby granted, free of charge, to any person obtaining a +# copy of this software and associated documentation files (the "Software"), +# to deal in the Software without restriction, including without limitation +# the rights to use, copy, modify, merge, publish, distribute, sublicense, +# and/or sell copies of the Software, and to permit persons to whom the +# Software is furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included +# in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +# BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +# DOS/DJGPP samples makefile v1.6 for Mesa +# +# Copyright (C) 2002 - Daniel Borca +# Email : [email protected] +# Web : http://www.geocities.com/dborca + + +# +# Available options: +# +# Environment variables: +# GLIDE path to Glide3 SDK; used with FX. +# default = $(TOP)/glide3 +# FX=1 build for 3dfx Glide3. Note that this disables +# compilation of most DMesa code and requires fxMesa. +# As a consequence, you'll need the DJGPP Glide3 +# library to build any application. +# default = no +# DXE=1 use DXE modules (see README.DJ for details). +# default = no +# +# Targets: +# <file.exe> build a specific file +# + + + +.PHONY: all +.SUFFIXES: .c .o .exe +.SECONDARY: ../util/readtex.o ../util/showbuffer.o + +TOP = ../.. +GLIDE ?= $(TOP)/glide3 + +CC = gcc +CFLAGS = -Wall -W -pedantic +CFLAGS += -O2 -ffast-math +CFLAGS += -I$(TOP)/include -I../util +CFLAGS += -DGLUT_IMPORT_LIB +ifeq ($(FX),1) +CFLAGS += -DFX +endif + +LD = gxx +LDFLAGS = -s -L$(TOP)/lib + +ifeq ($(DXE),1) +LDLIBS += -liglut -liglu -ligl +else +LDLIBS = -lglut -lglu -lgl +ifeq ($(FX),1) +LDFLAGS += -L$(GLIDE)/lib +LDLIBS += -lgld3x +endif +endif + +.c.o: + $(CC) -o $@ $(CFLAGS) -c $< +%.exe: ../util/readtex.o ../util/showbuffer.o %.o + $(LD) -o $@ $(LDFLAGS) $^ $(LDLIBS) + +all: + $(error Must specify <filename.exe> to build) diff --git a/progs/samples/Makefile.dja b/progs/samples/Makefile.dja new file mode 100644 index 00000000000..b60a11197b6 --- /dev/null +++ b/progs/samples/Makefile.dja @@ -0,0 +1,25 @@ + +# Makefile for sample programs for MS-DOS with DJGPP and ALLEGRO + + + +INCDIR = ../include +LIBDIR = ../lib +include ../common.dja + + _PROGS = accum bitmap1 bitmap2 blendeq blendxor copy cursor depth \ + eval fog font line logo nurb oglinfo olympic overlay point \ + prim quad select shape sphere star stencil stretch texture \ + tri wave + + PROGS = $(_PROGS:=.exe) + + +default: $(PROGS) + +clean: + del *. + +realclean: clean + del *.exe + diff --git a/progs/samples/Makefile.mgw b/progs/samples/Makefile.mgw new file mode 100644 index 00000000000..11935405783 --- /dev/null +++ b/progs/samples/Makefile.mgw @@ -0,0 +1,68 @@ +# Mesa 3-D graphics library +# Version: 4.0 +# +# Copyright (C) 1999 Brian Paul All Rights Reserved. +# +# Permission is hereby granted, free of charge, to any person obtaining a +# copy of this software and associated documentation files (the "Software"), +# to deal in the Software without restriction, including without limitation +# the rights to use, copy, modify, merge, publish, distribute, sublicense, +# and/or sell copies of the Software, and to permit persons to whom the +# Software is furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included +# in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +# BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +# MinGW samples makefile v1.2 for Mesa +# +# Copyright (C) 2002 - Daniel Borca +# Email : [email protected] +# Web : http://www.geocities.com/dborca + + +# +# Available options: +# +# Environment variables: +# +# Targets: +# <file.exe> build a specific file +# + + + +.PHONY: all +.SUFFIXES: .c .o .exe +.SECONDARY: ../util/readtex.o ../util/showbuffer.o + +TOP = ../.. + +CC = mingw32-gcc +CFLAGS = -Wall -W -pedantic +CFLAGS += -O2 -ffast-math +CFLAGS += -I$(TOP)/include -I../util +ifeq ($(FX),1) +CFLAGS += -DFX +endif +CFLAGS += -DGLUT_DISABLE_ATEXIT_HACK -D_STDCALL_SUPPORTED +CFLAGS += -D_WINDEF_ -D_WINGDI_ + +LD = mingw32-g++ +LDFLAGS = -s -L$(TOP)/lib + +LDLIBS = -lglut32 -lglu32 -lopengl32 + +.c.o: + $(CC) -o $@ $(CFLAGS) -c $< +%.exe: ../util/readtex.o ../util/showbuffer.o %.o + $(LD) -o $@ $(LDFLAGS) $^ $(LDLIBS) + +all: + $(error Must specify <filename.exe> to build) diff --git a/progs/samples/Makefile.win b/progs/samples/Makefile.win new file mode 100644 index 00000000000..e74568f7c96 --- /dev/null +++ b/progs/samples/Makefile.win @@ -0,0 +1,41 @@ + +# Mesa 3-D graphics library +# Version: 3.5 +# Copyright (C) 1995-2001 Brian Paul + +# Makefile for GLUT-based demo programs for Windows + +!include <win32.mak> + +##### MACROS ##### + +TOP = .. +INCDIR = ..\include +LIBDIR = ..\lib + +PROGS = accum bitmap1 bitmap2 blendeq blendxor copy cursor depth eval fog \ + font line logo nurb oglinfo olympic overlay point prim quad select \ + shape sphere star stencil stretch texture tri wave + +SRCS = \ + accum.c \ + bitmap1.c \ + bitmap2.c \ + blendeq.c \ + blendxor.c \ + copy.c \ + cursor.c depth.c eval.c fog.c \ + font.c line.c logo.c nurb.c olympic.c overlay.c point.c prim.c quad.c select.c \ + shape.c sphere.c star.c stencil.c stretch.c texture.c tri.c wave.c + +!include "../mesawin32.mak" + +##### TARGETS ##### + +clean:: + +clobber:: + +$(EXES) : $*.obj + @echo $@ + $(link) -out:$@ $* /LIBPATH:$(LIBDIR) $(LIBS) diff --git a/progs/samples/README b/progs/samples/README new file mode 100644 index 00000000000..853158873c9 --- /dev/null +++ b/progs/samples/README @@ -0,0 +1,520 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +accum - Accumulation test. + - RGBA, SB/DB (SB default). + - cmd line options: + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit + 1 Use filled polygon mode. + 2 Use outlined polygon mode. + +bitmap1 - Bitmap test. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + +bitmap2 - Bitmap test. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + 1 Toggle display list mode. + 2 Toggle color animation mode. + +copy - Pixel copy test. + - RGBA, SB/DB (SB default). + - cmd line options: + -sb Single buffer mode. + -db Double buffer mode. + -dr Direct render mode. + -ir Indirect render mode. + -f <file name> RGB image file. + - keys: + ESC Quit. + Z Increase zoom factor. + z Decrease zoom factor. + - mouse input: + Left Copy location. + +cursor - Cursor test. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + SPACE switch cursor color. + +depth - Z buffer test. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + 1 Toggle anti-aliased mode. + 2 Toggle stipple mode. + +eval - Evaluator test. + - RGBA, SB/DB (SB default). + - cmd line options: + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + LEFT Rotate. + RIGHT Rotate. + UP Rotate. + DOWN Rotate. + 1 Toggle dimensions. + 2 Toggle dimensions. + e Use eval mode. + m Use mesh mode. + f Toggle polygon mode. + p Toggle point mode. + c Toggle color mode. + t Toggle texture mode. + l Toggle lighting mode. + +fog - Fog test. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + LEFT Rotate. + RIGHT Rotate. + UP Rotate. + DOWN Rotate. + D Increase fog density. + d Decrease fog density. + +font - font test. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + Left Shift left. + Right Shift right. + Up Shift up. + Down Shift down. + n Shift in. + m Shift out. + q Scale up x. + w Scale down x. + a Scale up y. + s Scale down y. + z Scale up z. + x Scale down z. + e Rotate clockwise x. + r Rotate counter-clockwise x. + d Rotate clockwise y. + f Rotate counter-clockwise y. + c Rotate clockwise z. + v Rotate counter-clockwise z. + +line - Line test. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + W Increase line width. + w Decrease line width. + 1 Toggle stipple mode. + 2 Toggle anti-aliased mode. + +logo - Demo. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + LEFT Rotate. + RIGHT Rotate + UP Move clipping plane. + DOWN Move clipping plane. + Z Translate. + z Translate. + 1 Use GL_POINT polygon mode. + 2 Use GL_LINE polygon mode. + 3 Use GL_FILL polygon mode. + p Toggle polygon fill modes. + 4 Use GL_NICEST for GL_POLYGON_SMOOTH_HINT. + 5 Use anti-aliased polygon mode. + 6 Use aliased polygon mode. + 8 Toggle dither mode. + 9 Toggle stipple polygon mode. + 0 Toggle flat/smooth shading mode. + q Disable cull mode. + w Use front face cull mode. + e Use back face cull mode. + r Use clockwise front face mode. + t Use counter-clockwise front face mode. + y Use MSB first stipple pattern. + u Use LSB first stipple pattern. + a Use brick texture map. + s Use checker texture map. + d Disable texture map. + f Use decal texture environment mode. + g Use modulate texture environment mode. + +nurb - Nurb test. + - RGBA, SB/DB (SB default). + - cmd line options: + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + LEFT Rotate. + RIGHT Rotate. + UP Rotate. + DOWN Rotate. + +olympic - Olymipic rings demo. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + SPACE Restart demo. + +overlay - Overlay plane demo. + - RGBA, SB/DB (SB default). + - cmd line options: + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + SPACE Toggle star weird movement mode. + t Toggle star turbo mode. + +point - Point test. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + LEFT Translate. + RIGHT Translate. + UP Translate. + DOWN Translate. + W Increase point width. + w Decrease point width. + 1 Toggle anti-aliased mode. + +prim - Primitive test. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + 1 Toggle flat/smooth shade mode. + 2 Toggle outlined/filled polygon mode. + 3 Toggle color mask mode. + +quad - Quadric test. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + -dr Direct render mode. + -ir Indirect render mode. + -f <file name> texture file. + - keys: + ESC Quit. + LEFT Rotate. + RIGHT Rotate. + UP Rotate. + DOWN Rotate. + X Rotate. + x Rotate. + 1 Use GLU_FILL draw style. + 2 Use GLU_POINT draw style. + 3 Use GLU_LINE draw style. + 4 Use GLU_SILHOUETTE draw style. + 0 Toggle flat/smooth shade mode. + f Cylce through quadrics. + d Toggle orientation. + A Increase number of stacks. + a Decrease number of stacks. + S Increase number of slices. + s Decrease number of slices. + G Increase radius1. + g Decrease radius1. + J Increase radius2. + j Decrease radius2. + H Increase height. + h Decrease height. + K Increase angle1. + k Decrease angle1. + L Increase angle2. + l Decrease angle2. + z Toggle texture mode. + q Disable cull mode. + w Use front face cull mode. + e Use back face cull mode. + r Use clockwise front face mode. + t Use counter-clockwise front face mode. + y Toggle dither mode. + +select - Selection test. + - RGBA, SB. + - cmd line options: + - keys: + ESC Quit. + LEFT Rotate. + RIGHT Rotate. + Z Increase zoom factor. + z Decrease zoom factor. + d Zoom at current mouse location. + f Print feedback information. + l Toggle outlined/filled polygon mode. + - mouse: + Left Recolor selected triangle. + Center Enlarge selected triangle. + Right Delete selected triangle. + +shape - shape test. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + Left Shift left. + Right Shift right. + Up Shift up. + Down Shift down. + n Shift in. + m Shift out. + q Scale up x. + w Scale down x. + a Scale up y. + s Scale down y. + z Scale up z. + x Scale down z. + e Rotate clockwise x. + r Rotate counter-clockwise x. + d Rotate clockwise y. + f Rotate counter-clockwise y. + c Rotate clockwise z. + v Rotate counter-clockwise z. + SPACE switch shapes. + +speed - Speed test. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + a Toggle anti-aliased mode. + d Toggle z buffering mode. + f Toggle fog mode. + F Toggle fog hint mode. + s Toggle flat/smooth shading mode. + t Toggle texturing mode. + +sphere - Spheremap test. + - RGBA, SB/DB (SB default). + - cmd line options: + -sb Single buffer mode. + -db Double buffer mode. + -dr Direct render mode. + -ir Indirect render mode. + -f <file name> texture file. + -3 Use RGB components. + -4 Use RGBA components. + - keys: + ESC Quit. + LEFT Rotate about the y axis. + RIGHT Rotate about the y axis. + UP Rotate about the x axis. + DOWN Rotate about the x axis. + a Toggle auto rotate mode. + c toggle between cylinder or cube object. + t Use torus object. + d Use decal texture mode. + m Use modulate texture mode. + l Toggle lighted mode. + f Toggle fog mode. + 0 Use nearest magification filter. + 1 Use linear magification. + 2 Use nearest minification filter. + 3 Use linear minification filter. + 4 Use nearest-mipmap-nearest minification filter. + 5 Use nearest-mipmap-linear minification filter. + 6 Use linear-mipmap-nearest minification filter. + 7 Use linear-mipmap-linear minification filter. + +star - Demo. + - RGBA, SB/DB (SB default). + - cmd line options: + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + SPACE Toggle weird movement mode. + t Toggle turbo mode. + +stencil - Stencil test. + - RGBA, SB. + - cmd line options: + +stretch - Texture test. + - RGBA, SB. + - cmd line options: + -sb Single buffer mode. + -db Double buffer mode. + -dr Direct render mode. + -ir Indirect render mode. + -f <file name> texture file. + - keys: + ESC Quit. + SPACE Start animation. + - mouse: + Left Added stretch point. + +texture - Texture test. + - RGBA, SB/DB (SB default). + - cmd line options: + -sb Single buffer mode. + -db Double buffer mode. + -dr Direct render mode. + -ir Indirect render mode. + -f <file name> texture file. + - keys: + ESC Quit. + LEFT Rotate. + RIGHT Rotate. + UP Rotate. + DOWN Rotate. + T Translate. + t Translate. + s Toggle sphere map mode. + 0 Use nearest magification filter. + 1 Use linear magification filter. + 2 Use nearest minification filter. + 3 Use linear minification filter. + 4 Use nearest-mipmap-nearest minification filter. + 5 Use nearest-mipmap-linear minification filter. + 6 Use linear-mipmap-nearest minification filter. + 7 Use linear-mipmap-linear minification filter. + +tri - Triangle test. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + - keys: + ESC Quit. + LEFT Translate. + RIGHT Translate. + Z Increase zoom factor. + z Decrease zoom factor. + 1 Use point polygon mode. + 2 Use line polygon mode. + 3 Use filled polygon mode. + 4 Use point primitive. + 5 Use line-loop primitive. + 6 Use polygon primitive. + 7 Toggle cull mode. + 8 Use clockwise/counter-clockwise front face mode. + 9 Toggle front/back face cull mode. + v Toggle show verticies mode. + s Toggle flat/smooth shade mode. + h Toggle hide bottom triangle mode. + o Toggle outline mode. + m Toggle dither mode. + 0 Toggle anti-aliased mode. + +wave - Demo. + - RGBA/CI (RGBA default), SB/DB (SB default). + - cmd line options: + -rgb RGBA mode. + -ci Color index mode. + -sb Single buffer mode. + -db Double buffer mode. + -dr Direct render mode. + -ir Indirect render mode. + -grid <x> <y> Number of grids. + -size <number> Size of grid. + -wave <number> Height of wave (floating point number). + -frames <count> Number of frames. + - keys: + ESC Quit. + c Toggle contouring mode. + s Toggle flat/smooth shade mode. + l Toggle lighting mode. + d Toggle depth checking mode. + SPACE Toggle step/animation mode. + n Single step in step mode. + a Toggle spin mode. diff --git a/progs/samples/accum.c b/progs/samples/accum.c new file mode 100644 index 00000000000..24dfc07d2a6 --- /dev/null +++ b/progs/samples/accum.c @@ -0,0 +1,157 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +GLenum doubleBuffer; +GLint thing1, thing2; + + +static void Init(void) +{ + + glClearColor(0.0, 0.0, 0.0, 0.0); + glClearAccum(0.0, 0.0, 0.0, 0.0); + + thing1 = glGenLists(1); + glNewList(thing1, GL_COMPILE); + glColor3f(1.0, 0.0, 0.0); + glRectf(-1.0, -1.0, 1.0, 0.0); + glEndList(); + + thing2 = glGenLists(1); + glNewList(thing2, GL_COMPILE); + glColor3f(0.0, 1.0, 0.0); + glRectf(0.0, -1.0, 1.0, 1.0); + glEndList(); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); +} + +static void Key(unsigned char key, int x, int y) +{ + (void) x; + (void) y; + switch (key) { + case 27: + exit(1); + case '1': + glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); + break; + case '2': + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + + glPushMatrix(); + + glScalef(0.8, 0.8, 1.0); + + glClear(GL_COLOR_BUFFER_BIT); + glCallList(thing1); + glAccum(GL_LOAD, 0.5); + + glClear(GL_COLOR_BUFFER_BIT); + glCallList(thing2); + glAccum(GL_ACCUM, 0.5); + + glAccum(GL_RETURN, 1.0); + + glPopMatrix(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); + glutInitWindowSize( 300, 300); + + type = GLUT_RGB | GLUT_ACCUM; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Accum Test") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/bitmap1.c b/progs/samples/bitmap1.c new file mode 100644 index 00000000000..517d584e212 --- /dev/null +++ b/progs/samples/bitmap1.c @@ -0,0 +1,250 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define OPENGL_WIDTH 24 +#define OPENGL_HEIGHT 13 + + +GLenum rgb, doubleBuffer, windType; + +float boxA[3] = { + 0, 0, 0 +}; +float boxB[3] = { + -100, 0, 0 +}; +float boxC[3] = { + 100, 0, 0 +}; +float boxD[3] = { + 0, 95, 0 +}; +float boxE[3] = { + 0, -105, 0 +}; +GLubyte OpenGL_bits1[] = { + 0x00, 0x03, 0x00, + 0x7f, 0xfb, 0xff, + 0x7f, 0xfb, 0xff, + 0x00, 0x03, 0x00, + 0x3e, 0x8f, 0xb7, + 0x63, 0xdb, 0xb0, + 0x63, 0xdb, 0xb7, + 0x63, 0xdb, 0xb6, + 0x63, 0x8f, 0xf3, + 0x63, 0x00, 0x00, + 0x63, 0x00, 0x00, + 0x63, 0x00, 0x00, + 0x3e, 0x00, 0x00, +}; +GLubyte OpenGL_bits2[] = { + 0x00, 0x00, 0x00, + 0xff, 0xff, 0x01, + 0xff, 0xff, 0x01, + 0x00, 0x00, 0x00, + 0xf9, 0xfc, 0x01, + 0x8d, 0x0d, 0x00, + 0x8d, 0x0d, 0x00, + 0x8d, 0x0d, 0x00, + 0xcc, 0x0d, 0x00, + 0x0c, 0x4c, 0x0a, + 0x0c, 0x4c, 0x0e, + 0x8c, 0xed, 0x0e, + 0xf8, 0x0c, 0x00, +}; +GLubyte logo_bits[] = { + 0x00, 0x66, 0x66, + 0xff, 0x66, 0x66, + 0x00, 0x00, 0x00, + 0xff, 0x3c, 0x3c, + 0x00, 0x42, 0x40, + 0xff, 0x42, 0x40, + 0x00, 0x41, 0x40, + 0xff, 0x21, 0x20, + 0x00, 0x2f, 0x20, + 0xff, 0x20, 0x20, + 0x00, 0x10, 0x90, + 0xff, 0x10, 0x90, + 0x00, 0x0f, 0x10, + 0xff, 0x00, 0x00, + 0x00, 0x66, 0x66, + 0xff, 0x66, 0x66, +}; + +#include "tkmap.c" + +static void Init(void) +{ + + glClearColor(0.0, 0.0, 0.0, 0.0); + glClearIndex(0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(-175, 175, -175, 175); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + } +} + +static void Draw(void) +{ + float mapI[2], mapIA[2], mapIR[2]; + + glClear(GL_COLOR_BUFFER_BIT); + + mapI[0] = 0.0; + mapI[1] = 1.0; + mapIR[0] = 0.0; + mapIR[1] = 0.0; + mapIA[0] = 1.0; + mapIA[1] = 1.0; + + glPixelMapfv(GL_PIXEL_MAP_I_TO_R, 2, mapIR); + glPixelMapfv(GL_PIXEL_MAP_I_TO_G, 2, mapI); + glPixelMapfv(GL_PIXEL_MAP_I_TO_B, 2, mapI); + glPixelMapfv(GL_PIXEL_MAP_I_TO_A, 2, mapIA); + glPixelTransferi(GL_MAP_COLOR, GL_TRUE); + + SetColor(COLOR_WHITE); + glRasterPos3fv(boxA); + glPixelStorei(GL_UNPACK_ROW_LENGTH, 24); + glPixelStorei(GL_UNPACK_SKIP_PIXELS, 8); + glPixelStorei(GL_UNPACK_SKIP_ROWS, 2); + glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE); + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glBitmap(16, 12, 8.0, 0.0, 0.0, 0.0, logo_bits); + + glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); + glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0); + glPixelStorei(GL_UNPACK_SKIP_ROWS, 0); + glPixelStorei(GL_UNPACK_LSB_FIRST, GL_TRUE); + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + + SetColor(COLOR_WHITE); + glRasterPos3fv(boxB); + glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0, + OpenGL_bits1); + glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0, + OpenGL_bits2); + + SetColor(COLOR_YELLOW); + glRasterPos3fv(boxC); + glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0, + OpenGL_bits1); + glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0, + OpenGL_bits2); + + SetColor(COLOR_CYAN); + glRasterPos3fv(boxD); + glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0, + OpenGL_bits1); + glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0, + OpenGL_bits2); + + SetColor(COLOR_RED); + glRasterPos3fv(boxE); + glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0, + OpenGL_bits1); + glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0, + OpenGL_bits2); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + windType = (rgb) ? GLUT_RGB : GLUT_INDEX; + windType |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(windType); + + if (glutCreateWindow("Bitmap Test") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/bitmap2.c b/progs/samples/bitmap2.c new file mode 100644 index 00000000000..5faac841622 --- /dev/null +++ b/progs/samples/bitmap2.c @@ -0,0 +1,787 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define EXP_WIDTH 80 +#define EXP_HEIGHT 80 + + +GLenum rgb, doubleBuffer, windType; + +#include "tkmap.c" + +GLenum useLists, abuse; +GLubyte exp_bits[7][800] = { + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 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0x7d, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0xea, 0xef, 0x01, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0xff, 0x55, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0xdd, 0xfd, 0x03, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0xbf, 0xae, 0x22, 0x36, 0x00, 0x00, + 0x00, 0x00, 0x00, 0xdb, 0xf7, 0x3f, 0x1e, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x80, 0x50, 0xbf, 0xbf, 0x85, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0xff, 0xe5, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0xee, 0x7e, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x74, 0x4b, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0xe8, 0x3e, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0xf8, 0x49, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x54, 0x07, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x04, 0x80, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 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glBitmap(80, 80, 40.0, 40.0, 0.0, 0.0, exp_bits[i]); + glEndList(); + } + + abuse = GL_FALSE; + useLists = GL_TRUE; +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(-175, 175, -175, 175); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case '1': + useLists = !useLists; + break; + case '2': + abuse = !abuse; + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + GLint i, j; + + glClear(GL_COLOR_BUFFER_BIT); + + for (i = 0; i < 7; i++) { + for (j = 0; j < 40; j++) { + switch (j % 7) { + case 0: + SetColor(COLOR_YELLOW); + break; + case 1: + SetColor(COLOR_GREEN); + break; + case 2: + SetColor(COLOR_BLUE); + break; + case 3: + SetColor(COLOR_MAGENTA); + break; + case 4: + SetColor(COLOR_CYAN); + break; + case 5: + SetColor(COLOR_WHITE); + break; + case 6: + SetColor(COLOR_RED); + break; + } + glRasterPos3i((j*3)%5, (j*3)%8, 0); + + if (useLists) { + glCallList(exp_lists[i]); + } else { + glBitmap(80, 80, 40.0, 40.0, 0.0, 0.0, exp_bits[i]); + } + if (!abuse) { + break; + } + } + + if (i == 6) { + break; + } + + for (j = 0; j < 40; j++) { + SetColor(COLOR_BLACK); + glRasterPos3i((j*3)%5, (j*3)%8, 0); + if (useLists) { + glCallList(exp_lists[i]); + } else { + glBitmap(80, 80, 40.0, 40.0, 0.0, 0.0, exp_bits[i]); + } + if (!abuse) { + break; + } + } + } + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + windType = (rgb) ? GLUT_RGB : GLUT_INDEX; + windType |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(windType); + + if (glutCreateWindow("Bitmap Test") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/blendeq.c b/progs/samples/blendeq.c new file mode 100644 index 00000000000..f78afd30381 --- /dev/null +++ b/progs/samples/blendeq.c @@ -0,0 +1,319 @@ +/* +** blendeq.c - Demonstrates the use of the blend_minmax, blend_subtract, +** and blend_logic_op extensions using glBlendEquationEXT. +** +** Over a two-color backround, draw rectangles using twelve blend +** options. The values are read back as UNSIGNED_BYTE and printed +** in hex over each value. These values are useful for logic +** op comparisons when channels are 8 bits deep. +*/ + +#include <string.h> +#include <stdlib.h> +#include <stdio.h> +#ifdef _WIN32 +#include <windows.h> +#endif +#define GL_GLEXT_PROTOTYPES +#include <GL/glut.h> + +GLenum doubleBuffer; +static int dithering = 0; +int use11ops = 0; +int supportlogops = 0; +static int doPrint = 1; +static int deltaY; +GLint windW, windH; + +static void DrawString(const char *string) +{ + int i; + + for (i = 0; string[i]; i++) + glutBitmapCharacter(GLUT_BITMAP_9_BY_15, string[i]); +} + +static void Init(void) +{ + + glDisable(GL_DITHER); + glShadeModel(GL_FLAT); +} + +static void Reshape(int width, int height) +{ + + windW = (GLint)width; + windH = (GLint)height; + + glViewport(0, 0, (GLint)width, (GLint)height); + deltaY = windH /16; + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(0, windW, 0, windH); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case 'd': + dithering = !dithering; + break; + case 'l': + if (supportlogops == 3) + use11ops = (!use11ops); + if (use11ops) + printf("Using GL 1.1 color logic ops.\n"); + else printf("Using GL_EXT_blend_logic_op.\n"); + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void PrintColorStrings( void ) +{ + GLubyte ubbuf[3]; + int i, xleft, xright; + char colorString[18]; + + xleft = 5 + windW/4; + xright = 5 + windW/2; + + for (i = windH - deltaY + 4; i > 0; i-=deltaY) { + glReadPixels(xleft, i+10, 1, 1, GL_RGB, GL_UNSIGNED_BYTE, ubbuf); + sprintf(colorString, "(0x%x, 0x%x, 0x%x)", + ubbuf[0], ubbuf[1], ubbuf[2]); + glRasterPos2f(xleft, i); + DrawString(colorString); + glReadPixels(xright, i+10, 1, 1, GL_RGB, GL_UNSIGNED_BYTE, ubbuf); + sprintf(colorString, "(0x%x, 0x%x, 0x%x)", + ubbuf[0], ubbuf[1], ubbuf[2]); + glRasterPos2f(xright, i); + DrawString(colorString); + } +} + +static void Draw(void) +{ + int stringOffset = 5, stringx = 8; + int x1, x2, xleft, xright; + int i; + + (dithering) ? glEnable(GL_DITHER) : glDisable(GL_DITHER); + glDisable(GL_BLEND); + if (supportlogops & 2) + glDisable(GL_COLOR_LOGIC_OP); + + glClearColor(0.5, 0.6, 0.1, 1.0); + glClear(GL_COLOR_BUFFER_BIT); + + /* Draw background */ + glColor3f(0.1, 0.1, 1.0); + glRectf(0.0, 0.0, windW/2, windH); + + /* Draw labels */ + glColor3f(0.8, 0.8, 0.0); + i = windH - deltaY + stringOffset; + glRasterPos2f(stringx, i); i -= deltaY; + DrawString("SOURCE"); + glRasterPos2f(stringx, i); i -= deltaY; + DrawString("DEST"); + glRasterPos2f(stringx, i); i -= deltaY; + DrawString("min"); + glRasterPos2f(stringx, i); i -= deltaY; + DrawString("max"); + glRasterPos2f(stringx, i); i -= deltaY; + DrawString("subtract"); + glRasterPos2f(stringx, i); i -= deltaY; + DrawString("reverse_subtract"); + glRasterPos2f(stringx, i); i -= deltaY; + DrawString("clear"); + glRasterPos2f(stringx, i); i -= deltaY; + DrawString("set"); + glRasterPos2f(stringx, i); i -= deltaY; + DrawString("copy"); + glRasterPos2f(stringx, i); i -= deltaY; + DrawString("noop"); + glRasterPos2f(stringx, i); i -= deltaY; + DrawString("and"); + glRasterPos2f(stringx, i); i -= deltaY; + DrawString("invert"); + glRasterPos2f(stringx, i); i -= deltaY; + DrawString("or"); + glRasterPos2f(stringx, i); i -= deltaY; + DrawString("xor"); + + + i = windH - deltaY; + x1 = windW/4; + x2 = 3 * windW/4; + xleft = 5 + windW/4; + xright = 5 + windW/2; + + /* Draw foreground color for comparison */ + glColor3f(0.9, 0.2, 0.8); + glRectf(x1, i, x2, i+deltaY); + + /* Leave one rectangle of background color */ + + /* Begin test cases */ + glEnable(GL_BLEND); + glBlendFunc(GL_ONE, GL_ONE); + + i -= 2*deltaY; + glBlendEquationEXT(GL_MIN_EXT); + glRectf(x1, i, x2, i+deltaY); + + i -= deltaY; + glBlendEquationEXT(GL_MAX_EXT); + glRectf(x1, i, x2, i+deltaY); + + i -= deltaY; + glBlendEquationEXT(GL_FUNC_SUBTRACT_EXT); + glRectf(x1, i, x2, i+deltaY); + + i -= deltaY; + glBlendEquationEXT(GL_FUNC_REVERSE_SUBTRACT_EXT); + glRectf(x1, i, x2, i+deltaY); + + glBlendFunc(GL_ONE, GL_ZERO); + i -= deltaY; + if (!use11ops) + glBlendEquationEXT(GL_LOGIC_OP); + else + glEnable(GL_COLOR_LOGIC_OP); + glLogicOp(GL_CLEAR); + glRectf(x1, i, x2, i+deltaY); + + i -= deltaY; + glLogicOp(GL_SET); + glRectf(x1, i, x2, i+deltaY); + + i -= deltaY; + glLogicOp(GL_COPY); + glRectf(x1, i, x2, i+deltaY); + + i -= deltaY; + glLogicOp(GL_NOOP); + glRectf(x1, i, x2, i+deltaY); + + i -= deltaY; + glLogicOp(GL_AND); + glRectf(x1, i, x2, i+deltaY); + + i -= deltaY; + glLogicOp(GL_INVERT); + glRectf(x1, i, x2, i+deltaY); + + i -= deltaY; + glLogicOp(GL_OR); + glRectf(x1, i, x2, i+deltaY); + + i -= deltaY; + glLogicOp(GL_XOR); + glRectf(x1, i, x2, i+deltaY); + glRectf(x1, i+10, x2, i+5); + + if (doPrint) { + glDisable(GL_BLEND); + if (supportlogops & 2) + glDisable(GL_COLOR_LOGIC_OP); + glColor3f(1.0, 1.0, 1.0); + PrintColorStrings(); + } + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } + +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + char *s; + char *extName1 = "GL_EXT_blend_logic_op"; + char *extName2 = "GL_EXT_blend_minmax"; + char *extName3 = "GL_EXT_blend_subtract"; + char *version; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 800, 400); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Blend Equation") == GL_FALSE) { + exit(1); + } + + /* Make sure blend_logic_op extension is there. */ + s = (char *) glGetString(GL_EXTENSIONS); + version = (char*) glGetString(GL_VERSION); + if (!s) + exit(1); + if (strstr(s,extName1)) { + supportlogops = 1; + use11ops = 0; + printf("blend_logic_op extension available.\n"); + } + if (strncmp(version,"1.1",3)>=0) { + supportlogops += 2; + use11ops = 1; + printf("1.1 color logic ops available.\n"); + } + if (supportlogops == 0) { + printf("Blend_logic_op extension and GL 1.1 not present.\n"); + exit(1); + } + if (strstr(s,extName2) == 0) { + printf("Blend_minmax extension is not present.\n"); + exit(1); + } + if (strstr(s,extName3) == 0) { + printf("Blend_subtract extension is not present.\n"); + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/blendxor.c b/progs/samples/blendxor.c new file mode 100644 index 00000000000..5bc4aa9bea4 --- /dev/null +++ b/progs/samples/blendxor.c @@ -0,0 +1,206 @@ +/* +** blendxor.c - Demonstrates the use of the blend_logic_op +** extension to draw hilights. Using XOR to draw the same +** image twice restores the background to its original value. +*/ + +#include <stdio.h> +#include <string.h> +#ifndef _WIN32 +#include <unistd.h> +#endif +#include <stdlib.h> +#ifdef _WIN32 +#include <windows.h> +#endif +#define GL_GLEXT_LEGACY +#define GL_GLEXT_PROTOTYPES +#include <GL/glut.h> +#include <GL/glext.h> + + +GLenum doubleBuffer; +int dithering = 0; +int use11ops = 0; +int supportlogops = 0; +GLint windW, windH; + +static void Init(void) +{ + glDisable(GL_DITHER); + glShadeModel(GL_FLAT); +} + +static void Reshape(int width, int height) +{ + + windW = (GLint)width; + windH = (GLint)height; + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(0, 400, 0, 400); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case 'd': + dithering = !dithering; + break; + case 'l': + if (supportlogops == 3) + use11ops = (!use11ops); + if (use11ops) + printf("Using GL 1.1 color logic ops.\n"); + else printf("Using GL_EXT_blend_logic_op.\n"); + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + int i; + + glDisable(GL_BLEND); + if (supportlogops & 2) + glDisable(GL_COLOR_LOGIC_OP); + + (dithering) ? glEnable(GL_DITHER) : glDisable(GL_DITHER); + + glClearColor(0.5, 0.6, 0.1, 1.0); + glClear(GL_COLOR_BUFFER_BIT); + + /* Draw background prims */ + glColor3f(0.1, 0.1, 1.0); + glBegin(GL_TRIANGLES); + glVertex2i(5, 5); + glVertex2i(130, 50); + glVertex2i(100, 300); + glEnd(); + glColor3f(0.5, 0.2, 0.9); + glBegin(GL_TRIANGLES); + glVertex2i(200, 100); + glVertex2i(330, 50); + glVertex2i(340, 400); + glEnd(); + + glEnable(GL_BLEND); + if (!use11ops) + glBlendEquationEXT(GL_LOGIC_OP); + else + glEnable(GL_COLOR_LOGIC_OP); + glLogicOp(GL_XOR); + + /* Draw a set of rectangles across the window */ + glColor3f(0.9, 0.2, 0.8); + for(i = 0; i < 400; i+=60) { + glBegin(GL_POLYGON); + glVertex2i(i, 100); + glVertex2i(i+50, 100); + glVertex2i(i+50, 200); + glVertex2i(i, 200); + glEnd(); + } + glFlush(); /* Added by Brian Paul */ +#ifndef _WIN32 + sleep(2); +#endif + + /* Redraw the rectangles, which should erase them */ + for(i = 0; i < 400; i+=60) { + glBegin(GL_POLYGON); + glVertex2i(i, 100); + glVertex2i(i+50, 100); + glVertex2i(i+50, 200); + glVertex2i(i, 200); + glEnd(); + } + glFlush(); + + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + char *s; + char *extName = "GL_EXT_blend_logic_op"; + char *version; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 400, 400); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Blend XOR") == GL_FALSE) { + exit(1); + } + + /* Make sure blend_logic_op extension is there. */ + s = (char *) glGetString(GL_EXTENSIONS); + version = (char*) glGetString(GL_VERSION); + if (!s) + exit(1); + if (strstr(s,extName)) { + supportlogops = 1; + use11ops = 0; + printf("blend_logic_op extension available.\n"); + } + if (strncmp(version,"1.1",3)>=0) { + supportlogops += 2; + use11ops = 1; + printf("1.1 color logic ops available.\n"); + } + if (supportlogops == 0) { + printf("Blend_logic_op extension and GL 1.1 not present.\n"); + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/copy.c b/progs/samples/copy.c new file mode 100644 index 00000000000..391c637d6fa --- /dev/null +++ b/progs/samples/copy.c @@ -0,0 +1,193 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#include "loadppm.c" + +GLenum doubleBuffer; +GLint windW, windH; + +char *fileName = 0; +PPMImage *image; +float point[3]; +float zoom; +GLint x, y; + +static void Init(void) +{ + + glClearColor(0.0, 0.0, 0.0, 0.0); + + x = 0; + y = windH; + zoom = 1.8; +} + +static void Reshape(int width, int height) +{ + + windW = (GLint)width; + windH = (GLint)height; + + glViewport(0, 0, windW, windH); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(0, windW, 0, windH); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case 'Z': + zoom += 0.2; + break; + case 'z': + zoom -= 0.2; + if (zoom < 0.2) { + zoom = 0.2; + } + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Mouse(int button, int state, int mouseX, int mouseY) +{ + if (state != GLUT_DOWN) + return; + x = (GLint)mouseX; + y = (GLint)mouseY; + + glutPostRedisplay(); +} + +static void Draw(void) +{ + + glClear(GL_COLOR_BUFFER_BIT); + + point[0] = (windW / 2) - (image->sizeX / 2); + point[1] = (windH / 2) - (image->sizeY / 2); + point[2] = 0; + glRasterPos3fv(point); + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glPixelZoom(1.0, 1.0); + glDrawPixels(image->sizeX, image->sizeY, GL_RGB, GL_UNSIGNED_BYTE, + image->data); + + point[0] = (float)x; + point[1] = windH - (float)y; + point[2] = 0.0; + glRasterPos3fv(point); + + glPixelZoom(zoom, zoom); + glCopyPixels((windW/2)-(image->sizeX/2), + (windH/2)-(image->sizeY/2), + image->sizeX, image->sizeY, GL_COLOR); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else if (strcmp(argv[i], "-f") == 0) { + if (i+1 >= argc || argv[i+1][0] == '-') { + printf("-f (No file name).\n"); + return GL_FALSE; + } else { + fileName = argv[++i]; + } + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + if (fileName == 0) { + printf("No image file.\n"); + exit(1); + } + + image = LoadPPM(fileName); + + windW = 300; + windH = 300; + glutInitWindowPosition(0, 0); glutInitWindowSize( windW, windH); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Copy Test") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutMouseFunc(Mouse); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/cursor.c b/progs/samples/cursor.c new file mode 100644 index 00000000000..de8fc58556c --- /dev/null +++ b/progs/samples/cursor.c @@ -0,0 +1,150 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +GLenum rgb, doubleBuffer, windType; +int windX, windY; +int cursor; + + +#include "tkmap.c" + +static void Init(void) +{ + cursor = 0; + glutSetCursor(cursor); + glClearColor(0.0, 0.0, 0.0, 0.0); + glClearIndex(0.0); +} + +static void Reshape(int width, int height) +{ + + windX = width; + windY = height; + glViewport(0, 0, windX, windY); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(0, windX, 0, windY); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case 32: + cursor++; + if (cursor > 19) { + cursor = 0; + } + glutSetCursor(cursor); + } +} + +static void Draw(void) +{ + + glClear(GL_COLOR_BUFFER_BIT); + + glBegin(GL_POLYGON); + SetColor(COLOR_BLACK); + glVertex2i(0, 0); + SetColor(COLOR_RED); + glVertex2i(windX, 0); + SetColor(COLOR_GREEN); + glVertex2i(windX, windY); + SetColor(COLOR_BLUE); + glVertex2i(0, windY); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + windX = 300; + windY = 300; + glutInitWindowPosition(0, 0); glutInitWindowSize( windX, windY); + + windType = (rgb) ? GLUT_RGB : GLUT_INDEX; + windType |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(windType); + + if (glutCreateWindow("Cursor Test") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/depth.c b/progs/samples/depth.c new file mode 100644 index 00000000000..afe2ec17a38 --- /dev/null +++ b/progs/samples/depth.c @@ -0,0 +1,209 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum rgb, doubleBuffer; + +GLenum antiAlias, stipple; +GLubyte stippleBits[32*4] = { + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, + 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, +}; + + +#include "tkmap.c" + +static void Init(void) +{ + GLint i; + + glClearColor(0.0, 0.0, 0.0, 0.0); + glClearIndex(0.0); + + if (!rgb) { + for (i = 0; i < 16; i++) { + glutSetColor(i+CI_OFFSET_1, 0.0, 0.0, i/15.0); + glutSetColor(i+CI_OFFSET_2, 0.0, i/15.0, 0.0); + } + } + + glPolygonStipple(stippleBits); + + antiAlias = GL_FALSE; + stipple = GL_FALSE; +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case '1': + antiAlias = !antiAlias; + break; + case '2': + stipple = !stipple; + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + GLint ci1, ci2; + + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + + if (antiAlias) { + ci1 = CI_OFFSET_1; + ci2 = CI_OFFSET_2; + glBlendFunc(GL_SRC_ALPHA, GL_ONE); + glEnable(GL_BLEND); + glEnable(GL_POLYGON_SMOOTH); + glDisable(GL_DEPTH_TEST); + } else { + ci1 = COLOR_BLUE; + ci2 = COLOR_GREEN; + glDisable(GL_BLEND); + glDisable(GL_POLYGON_SMOOTH); + glEnable(GL_DEPTH_TEST); + } + + if (stipple) { + glEnable(GL_POLYGON_STIPPLE); + } else { + glDisable(GL_POLYGON_STIPPLE); + } + + glBegin(GL_TRIANGLES); + (rgb) ? glColor3fv(RGBMap[COLOR_BLUE]) : glIndexi(ci1); + glVertex3f( 0.9, -0.9, -30.0); + glVertex3f( 0.9, 0.9, -30.0); + glVertex3f(-0.9, 0.0, -30.0); + (rgb) ? glColor3fv(RGBMap[COLOR_GREEN]) : glIndexi(ci2); + glVertex3f(-0.9, -0.9, -40.0); + glVertex3f(-0.9, 0.9, -40.0); + glVertex3f( 0.9, 0.0, -25.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + type = GLUT_DEPTH; + type |= (rgb) ? GLUT_RGB : GLUT_INDEX; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Depth Test") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/eval.c b/progs/samples/eval.c new file mode 100644 index 00000000000..3ad9c5468f8 --- /dev/null +++ b/progs/samples/eval.c @@ -0,0 +1,472 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <math.h> +#include <GL/glut.h> + + +#define VORDER 10 +#define CORDER 10 +#define TORDER 3 + +#define VMAJOR_ORDER 2 +#define VMINOR_ORDER 3 + +#define CMAJOR_ORDER 2 +#define CMINOR_ORDER 2 + +#define TMAJOR_ORDER 2 +#define TMINOR_ORDER 2 + +#define VDIM 4 +#define CDIM 4 +#define TDIM 2 + +#define ONE_D 1 +#define TWO_D 2 + +#define EVAL 3 +#define MESH 4 + + +GLenum doubleBuffer; + +float rotX = 0.0, rotY = 0.0, translateZ = -1.0; + +GLenum arrayType = ONE_D; +GLenum colorType = GL_FALSE; +GLenum textureType = GL_FALSE; +GLenum polygonFilled = GL_FALSE; +GLenum lighting = GL_FALSE; +GLenum mapPoint = GL_FALSE; +GLenum mapType = EVAL; + +double point1[10*4] = { + -0.5, 0.0, 0.0, 1.0, + -0.4, 0.5, 0.0, 1.0, + -0.3,-0.5, 0.0, 1.0, + -0.2, 0.5, 0.0, 1.0, + -0.1,-0.5, 0.0, 1.0, + 0.0, 0.5, 0.0, 1.0, + 0.1,-0.5, 0.0, 1.0, + 0.2, 0.5, 0.0, 1.0, + 0.3,-0.5, 0.0, 1.0, + 0.4, 0.0, 0.0, 1.0, +}; +double cpoint1[10*4] = { + 0.0, 0.0, 1.0, 1.0, + 0.3, 0.0, 0.7, 1.0, + 0.6, 0.0, 0.3, 1.0, + 1.0, 0.0, 0.0, 1.0, + 1.0, 0.3, 0.0, 1.0, + 1.0, 0.6, 0.0, 1.0, + 1.0, 1.0, 0.0, 1.0, + 1.0, 1.0, 0.5, 1.0, + 1.0, 1.0, 1.0, 1.0, +}; +double tpoint1[11*4] = { + 0.0, 0.0, 0.0, 1.0, + 0.0, 0.1, 0.0, 1.0, + 0.0, 0.2, 0.0, 1.0, + 0.0, 0.3, 0.0, 1.0, + 0.0, 0.4, 0.0, 1.0, + 0.0, 0.5, 0.0, 1.0, + 0.0, 0.6, 0.0, 1.0, + 0.0, 0.7, 0.0, 1.0, + 0.0, 0.8, 0.0, 1.0, + 0.0, 0.9, 0.0, 1.0, +}; +double point2[2*3*4] = { + -0.5, -0.5, 0.5, 1.0, + 0.0, 1.0, 0.5, 1.0, + 0.5, -0.5, 0.5, 1.0, + -0.5, 0.5, -0.5, 1.0, + 0.0, -1.0, -0.5, 1.0, + 0.5, 0.5, -0.5, 1.0, +}; +double cpoint2[2*2*4] = { + 0.0, 0.0, 0.0, 1.0, + 0.0, 0.0, 1.0, 1.0, + 0.0, 1.0, 0.0, 1.0, + 1.0, 1.0, 1.0, 1.0, +}; +double tpoint2[2*2*2] = { + 0.0, 0.0, 0.0, 1.0, + 1.0, 0.0, 1.0, 1.0, +}; +float textureImage[4*2*4] = { + 1.0, 1.0, 1.0, 1.0, + 1.0, 0.0, 0.0, 1.0, + 1.0, 0.0, 0.0, 1.0, + 1.0, 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, 1.0, + 1.0, 0.0, 0.0, 1.0, + 1.0, 0.0, 0.0, 1.0, + 1.0, 1.0, 1.0, 1.0, +}; + + +static void Init(void) +{ + static float ambient[] = {0.1, 0.1, 0.1, 1.0}; + static float diffuse[] = {1.0, 1.0, 1.0, 1.0}; + static float position[] = {0.0, 0.0, -150.0, 0.0}; + static float front_mat_diffuse[] = {1.0, 0.2, 1.0, 1.0}; + static float back_mat_diffuse[] = {1.0, 1.0, 0.2, 1.0}; + static float lmodel_ambient[] = {1.0, 1.0, 1.0, 1.0}; + static float lmodel_twoside[] = {GL_TRUE}; + static float decal[] = {GL_DECAL}; + static float repeat[] = {GL_REPEAT}; + static float nr[] = {GL_NEAREST}; + + glFrontFace(GL_CCW); + + glEnable(GL_DEPTH_TEST); + + glMap1d(GL_MAP1_VERTEX_4, 0.0, 1.0, VDIM, VORDER, point1); + glMap1d(GL_MAP1_COLOR_4, 0.0, 1.0, CDIM, CORDER, cpoint1); + + glMap2d(GL_MAP2_VERTEX_4, 0.0, 1.0, VMINOR_ORDER*VDIM, VMAJOR_ORDER, 0.0, + 1.0, VDIM, VMINOR_ORDER, point2); + glMap2d(GL_MAP2_COLOR_4, 0.0, 1.0, CMINOR_ORDER*CDIM, CMAJOR_ORDER, 0.0, + 1.0, CDIM, CMINOR_ORDER, cpoint2); + glMap2d(GL_MAP2_TEXTURE_COORD_2, 0.0, 1.0, TMINOR_ORDER*TDIM, + TMAJOR_ORDER, 0.0, 1.0, TDIM, TMINOR_ORDER, tpoint2); + + glLightfv(GL_LIGHT0, GL_AMBIENT, ambient); + glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse); + glLightfv(GL_LIGHT0, GL_POSITION, position); + + glMaterialfv(GL_FRONT, GL_DIFFUSE, front_mat_diffuse); + glMaterialfv(GL_BACK, GL_DIFFUSE, back_mat_diffuse); + + glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient); + glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside); + + glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, decal); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, repeat); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, repeat); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, nr); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, nr); + glTexImage2D(GL_TEXTURE_2D, 0, 4, 2, 4, 0, GL_RGBA, GL_FLOAT, + (GLvoid *)textureImage); +} + +static void DrawPoints1(void) +{ + GLint i; + + glColor3f(0.0, 1.0, 0.0); + glPointSize(2); + glBegin(GL_POINTS); + for (i = 0; i < VORDER; i++) { + glVertex4dv(&point1[i*4]); + } + glEnd(); +} + +static void DrawPoints2(void) +{ + GLint i, j; + + glColor3f(1.0, 0.0, 1.0); + glPointSize(2); + glBegin(GL_POINTS); + for (i = 0; i < VMAJOR_ORDER; i++) { + for (j = 0; j < VMINOR_ORDER; j++) { + glVertex4dv(&point2[i*4*VMINOR_ORDER+j*4]); + } + } + glEnd(); +} + +static void DrawMapEval1(float du) +{ + float u; + + glColor3f(1.0, 0.0, 0.0); + glBegin(GL_LINE_STRIP); + for (u = 0.0; u < 1.0; u += du) { + glEvalCoord1d(u); + } + glEvalCoord1d(1.0); + glEnd(); +} + +static void DrawMapEval2(float du, float dv) +{ + float u, v, tmp; + + glColor3f(1.0, 0.0, 0.0); + for (v = 0.0; v < 1.0; v += dv) { + glBegin(GL_QUAD_STRIP); + for (u = 0.0; u <= 1.0; u += du) { + glEvalCoord2d(u,v); + tmp = (v + dv < 1.0) ? (v + dv) : 1.0; + glEvalCoord2d(u, tmp); + } + glEvalCoord2d(1.0, v); + glEvalCoord2d(1.0, v+dv); + glEnd(); + } +} + +static void RenderEval(void) +{ + + if (colorType) { + glEnable(GL_MAP1_COLOR_4); + glEnable(GL_MAP2_COLOR_4); + } else { + glDisable(GL_MAP1_COLOR_4); + glDisable(GL_MAP2_COLOR_4); + } + + if (textureType) { + glEnable(GL_TEXTURE_2D); + glEnable(GL_MAP2_TEXTURE_COORD_2); + } else { + glDisable(GL_TEXTURE_2D); + glDisable(GL_MAP2_TEXTURE_COORD_2); + } + + if (polygonFilled) { + glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); + } else { + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); + } + + glShadeModel(GL_SMOOTH); + + switch (mapType) { + case EVAL: + switch (arrayType) { + case ONE_D: + glDisable(GL_MAP2_VERTEX_4); + glEnable(GL_MAP1_VERTEX_4); + DrawPoints1(); + DrawMapEval1(0.1/VORDER); + break; + case TWO_D: + glDisable(GL_MAP1_VERTEX_4); + glEnable(GL_MAP2_VERTEX_4); + DrawPoints2(); + DrawMapEval2(0.1/VMAJOR_ORDER,0.1/VMINOR_ORDER); + break; + default: + break; + } + break; + case MESH: + switch (arrayType) { + case ONE_D: + DrawPoints1(); + glDisable(GL_MAP2_VERTEX_4); + glEnable (GL_MAP1_VERTEX_4); + glColor3f(0.0, 0.0, 1.0); + glMapGrid1d(40, 0.0, 1.0); + if (mapPoint) { + glPointSize(2); + glEvalMesh1(GL_POINT, 0, 40); + } else { + glEvalMesh1(GL_LINE, 0, 40); + } + break; + case TWO_D: + DrawPoints2(); + glDisable(GL_MAP1_VERTEX_4); + glEnable(GL_MAP2_VERTEX_4); + glColor3f(0.0, 0.0, 1.0); + glMapGrid2d(20, 0.0, 1.0, 20, 0.0, 1.0); + if (mapPoint) { + glPointSize(2); + glEvalMesh2(GL_POINT, 0, 20, 0, 20); + } else if (polygonFilled) { + glEvalMesh2(GL_FILL, 0, 20, 0, 20); + } else { + glEvalMesh2(GL_LINE, 0, 20, 0, 20); + } + break; + default: + break; + } + break; + default: + break; + } +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 10.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key2(int key, int x, int y) +{ + switch (key) { + case GLUT_KEY_LEFT: + rotY -= 30; + break; + case GLUT_KEY_RIGHT: + rotY += 30; + break; + case GLUT_KEY_UP: + rotX -= 30; + break; + case GLUT_KEY_DOWN: + rotX += 30; + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Key(unsigned char key, int x, int y) +{ + switch (key) { + case 27: + exit(1); + case '1': + arrayType = ONE_D; + break; + case '2': + arrayType = TWO_D; + break; + case 'e': + mapType = EVAL; + break; + case 'm': + mapType = MESH; + break; + case 'f': + polygonFilled = !polygonFilled; + break; + case 'p': + mapPoint = !mapPoint; + break; + case 'c': + colorType = !colorType; + break; + case 't': + textureType = !textureType; + break; + case 'l': + lighting =! lighting; + if (lighting) { + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + glEnable(GL_AUTO_NORMAL); + } else { + glDisable(GL_LIGHTING); + glDisable(GL_LIGHT0); + glDisable(GL_AUTO_NORMAL); + } + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + + glPushMatrix(); + + glTranslatef(0.0, 0.0 , translateZ); + glRotatef(rotX, 1, 0, 0); + glRotatef(rotY, 0, 1, 0); + RenderEval(); + + glPopMatrix(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + type = GLUT_RGB | GLUT_DEPTH; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Evaluator Test") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutSpecialFunc(Key2); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/fog.c b/progs/samples/fog.c new file mode 100644 index 00000000000..3f3ffdbcc7a --- /dev/null +++ b/progs/samples/fog.c @@ -0,0 +1,311 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + +GLenum rgb, doubleBuffer; + +#include "tkmap.c" + +double plane[4] = { + 1.0, 0.0, -1.0, 0.0 +}; +float rotX = 5.0, rotY = -5.0, zTranslate = -65.0; +float fogDensity = 0.02; +GLint cubeList = 1; + +float scp[18][3] = { + { + 1.000000, 0.000000, 0.000000 + }, + { + 1.000000, 0.000000, 5.000000 + }, + { + 0.707107, 0.707107, 0.000000 + }, + { + 0.707107, 0.707107, 5.000000 + }, + { + 0.000000, 1.000000, 0.000000 + }, + { + 0.000000, 1.000000, 5.000000 + }, + { + -0.707107, 0.707107, 0.000000 + }, + { + -0.707107, 0.707107, 5.000000 + }, + { + -1.000000, 0.000000, 0.000000 + }, + { + -1.000000, 0.000000, 5.000000 + }, + { + -0.707107, -0.707107, 0.000000 + }, + { + -0.707107, -0.707107, 5.000000 + }, + { + 0.000000, -1.000000, 0.000000 + }, + { + 0.000000, -1.000000, 5.000000 + }, + { + 0.707107, -0.707107, 0.000000 + }, + { + 0.707107, -0.707107, 5.000000 + }, + { + 1.000000, 0.000000, 0.000000 + }, + { + 1.000000, 0.000000, 5.000000 + }, +}; + + +static void Build_lists(void) +{ + + glNewList(cubeList, GL_COMPILE); + glBegin(GL_TRIANGLE_STRIP); + glNormal3fv(scp[0]); glVertex3fv(scp[0]); + glNormal3fv(scp[0]); glVertex3fv(scp[1]); + glNormal3fv(scp[2]); glVertex3fv(scp[2]); + glNormal3fv(scp[2]); glVertex3fv(scp[3]); + glNormal3fv(scp[4]); glVertex3fv(scp[4]); + glNormal3fv(scp[4]); glVertex3fv(scp[5]); + glNormal3fv(scp[6]); glVertex3fv(scp[6]); + glNormal3fv(scp[6]); glVertex3fv(scp[7]); + glNormal3fv(scp[8]); glVertex3fv(scp[8]); + glNormal3fv(scp[8]); glVertex3fv(scp[9]); + glNormal3fv(scp[10]); glVertex3fv(scp[10]); + glNormal3fv(scp[10]); glVertex3fv(scp[11]); + glNormal3fv(scp[12]); glVertex3fv(scp[12]); + glNormal3fv(scp[12]); glVertex3fv(scp[13]); + glNormal3fv(scp[14]); glVertex3fv(scp[14]); + glNormal3fv(scp[14]); glVertex3fv(scp[15]); + glNormal3fv(scp[16]); glVertex3fv(scp[16]); + glNormal3fv(scp[16]); glVertex3fv(scp[17]); + glEnd(); + glEndList(); +} + +static void Init(void) +{ + static float ambient[] = {0.1, 0.1, 0.1, 1.0}; + static float diffuse[] = {1.0, 1.0, 1.0, 1.0}; + static float position[] = {90.0, 90.0, 0.0, 0.0}; + static float front_mat_shininess[] = {30.0}; + static float front_mat_specular[] = {0.0, 0.0, 0.0, 1.0}; + static float front_mat_diffuse[] = {0.0, 1.0, 0.0, 1.0}; + static float back_mat_shininess[] = {50.0}; + static float back_mat_specular[] = {0.0, 0.0, 1.0, 1.0}; + static float back_mat_diffuse[] = {1.0, 0.0, 0.0, 1.0}; + static float lmodel_ambient[] = {0.0, 0.0, 0.0, 1.0}; + static float fog_color[] = {0.8, 0.8, 0.8, 1.0}; + + glFrontFace(GL_CW); + + glEnable(GL_DEPTH_TEST); + + glLightfv(GL_LIGHT0, GL_AMBIENT, ambient); + glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse); + glLightfv(GL_LIGHT0, GL_POSITION, position); + glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient); + glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE); + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + + glMaterialfv(GL_FRONT, GL_SHININESS, front_mat_shininess); + glMaterialfv(GL_FRONT, GL_SPECULAR, front_mat_specular); + glMaterialfv(GL_FRONT, GL_DIFFUSE, front_mat_diffuse); + glMaterialfv(GL_BACK, GL_SHININESS, back_mat_shininess); + glMaterialfv(GL_BACK, GL_SPECULAR, back_mat_specular); + glMaterialfv(GL_BACK, GL_DIFFUSE, back_mat_diffuse); + + glEnable(GL_FOG); + glFogi(GL_FOG_MODE, GL_EXP); + glFogf(GL_FOG_DENSITY, fogDensity); + if (rgb) { + glFogfv(GL_FOG_COLOR, fog_color); + glClearColor(0.8, 0.8, 0.8, 1.0); + } else { + glFogi(GL_FOG_INDEX, 1<<5); + SetFogRamp(5, 3); + glClearIndex(128); + } + + Build_lists(); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluPerspective(45.0, 1.0, 1.0, 200.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key2(int key, int x, int y) +{ + + switch (key) { + case GLUT_KEY_UP: + rotX -= 5; + break; + case GLUT_KEY_DOWN: + rotX += 5; + break; + case GLUT_KEY_LEFT: + rotY -= 5; + break; + case GLUT_KEY_RIGHT: + rotY += 5; + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case 'D': + if (rgb) { + fogDensity *= 1.10; + glFogf(GL_FOG_DENSITY, fogDensity); + } + break; + case 'd': + if (rgb) { + fogDensity /= 1.10; + glFogf(GL_FOG_DENSITY, fogDensity); + } + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + + glPushMatrix(); + + glTranslatef(0, 0, zTranslate); + glRotatef(rotY, 0,1,0); + glRotatef(rotX, 1,0,0); + glScalef(1.0, 1.0, 10.0); + + glCallList(cubeList); + + glPopMatrix(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_TRUE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + type = GLUT_DEPTH; + type |= (rgb) ? GLUT_RGB : GLUT_INDEX; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Fog Test") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutSpecialFunc(Key2); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/font.c b/progs/samples/font.c new file mode 100644 index 00000000000..a0091a65d79 --- /dev/null +++ b/progs/samples/font.c @@ -0,0 +1,273 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define OPENGL_WIDTH 24 +#define OPENGL_HEIGHT 13 + + +char string[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz"; +GLenum rgb, doubleBuffer, windType; +float angleX = 0.0, angleY = 0.0, angleZ = 0.0; +float scaleX = 1.0, scaleY = 1.0, scaleZ = 1.0; +float shiftX = 0.0, shiftY = 0.0, shiftZ = 0.0; + + +#include "tkmap.c" + + +static void DrawBitmapString(void *font, const char *string) +{ + int i; + + for (i = 0; string[i]; i++) + glutBitmapCharacter(font, string[i]); +} + +static void DrawStrokeString(void *font, const char *string) +{ + int i; + + for (i = 0; string[i]; i++) + glutStrokeCharacter(font, string[i]); +} + +static void Init(void) +{ + + glClearColor(0.0, 0.0, 0.0, 0.0); + glClearIndex(0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-400.0, 400.0, -200.0, 200.0, -400.0, 400.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key2(int key, int x, int y) +{ + + switch (key) { + case GLUT_KEY_LEFT: + shiftX -= 20.0; + break; + case GLUT_KEY_RIGHT: + shiftX += 20.0; + break; + case GLUT_KEY_UP: + shiftY += 20.0; + break; + case GLUT_KEY_DOWN: + shiftY -= 20.0; + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + + case 'n': + shiftZ += 20.0; + break; + case 'm': + shiftZ -= 20.0; + break; + + case 'q': + scaleX -= 0.1; + if (scaleX < 0.1) { + scaleX = 0.1; + } + break; + case 'w': + scaleX += 0.1; + break; + case 'a': + scaleY -= 0.1; + if (scaleY < 0.1) { + scaleY = 0.1; + } + break; + case 's': + scaleY += 0.1; + break; + case 'z': + scaleZ -= 0.1; + if (scaleZ < 0.1) { + scaleZ = 0.1; + } + break; + case 'x': + scaleZ += 0.1; + break; + + case 'e': + angleX -= 5.0; + if (angleX < 0.0) { + angleX = 360.0 + angleX; + } + break; + case 'r': + angleX += 5.0; + if (angleX > 360.0) { + angleX = angleX - 360.0; + } + break; + case 'd': + angleY -= 5.0; + if (angleY < 0.0) { + angleY = 360.0 + angleY; + } + break; + case 'f': + angleY += 5.0; + if (angleY > 360.0) { + angleY = angleY - 360.0; + } + break; + case 'c': + angleZ -= 5.0; + if (angleZ < 0.0) { + angleZ = 360.0 + angleZ; + } + break; + case 'v': + angleZ += 5.0; + if (angleZ > 360.0) { + angleZ = angleZ - 360.0; + } + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + + glClear(GL_COLOR_BUFFER_BIT); + + SetColor(COLOR_WHITE); + + glPushMatrix(); + + glTranslatef(shiftX, shiftY, shiftZ); + glRotatef(angleX, 1.0, 0.0, 0.0); + glRotatef(angleY, 0.0, 1.0, 0.0); + glRotatef(angleZ, 0.0, 0.0, 1.0); + glScalef(scaleX, scaleY, scaleZ); + + glPushMatrix(); + glRasterPos2f(-390.5, 0.5); + DrawBitmapString(GLUT_BITMAP_9_BY_15, string); + glPopMatrix(); + + glPushMatrix(); + glTranslatef(-390.5, -30.5, 0.0); + DrawStrokeString(GLUT_STROKE_ROMAN, string); + glPopMatrix(); + + glPopMatrix(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 800, 400); + + windType = (rgb) ? GLUT_RGB : GLUT_INDEX; + windType |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(windType); + + if (glutCreateWindow("Font Test") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutSpecialFunc(Key2); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/line.c b/progs/samples/line.c new file mode 100644 index 00000000000..83f70cb3ac4 --- /dev/null +++ b/progs/samples/line.c @@ -0,0 +1,219 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET 16 + + +GLenum rgb, doubleBuffer, windType; + +GLenum mode1, mode2; +GLint size; +float pntA[3] = { + -160.0, 0.0, 0.0 +}; +float pntB[3] = { + -130.0, 0.0, 0.0 +}; +float pntC[3] = { + -40.0, -50.0, 0.0 +}; +float pntD[3] = { + 30.0, 60.0, 0.0 +}; + + +#include "tkmap.c" + +static void Init(void) +{ + GLint i; + + glClearColor(0.0, 0.0, 0.0, 0.0); + + glLineStipple(1, 0xF0E0); + glBlendFunc(GL_SRC_ALPHA, GL_ONE); + + if (!rgb) { + for (i = 0; i < 16; i++) { + glutSetColor(i+CI_OFFSET, i/15.0, i/15.0, 0.0); + } + } + + mode1 = GL_FALSE; + mode2 = GL_FALSE; + size = 1; +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(-175, 175, -175, 175); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case '1': + mode1 = !mode1; + break; + case '2': + mode2 = !mode2; + break; + case 'W': + size++; + break; + case 'w': + size--; + if (size < 1) { + size = 1; + } + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + GLint ci, i; + + glClear(GL_COLOR_BUFFER_BIT); + + glLineWidth(size); + + if (mode1) { + glEnable(GL_LINE_STIPPLE); + } else { + glDisable(GL_LINE_STIPPLE); + } + + if (mode2) { + ci = CI_OFFSET; + glEnable(GL_LINE_SMOOTH); + glEnable(GL_BLEND); + } else { + ci = COLOR_YELLOW; + glDisable(GL_LINE_SMOOTH); + glDisable(GL_BLEND); + } + + glPushMatrix(); + + glShadeModel( GL_FLAT ); + + for (i = 0; i < 360; i += 5) { + glRotatef(5.0, 0,0,1); + + (rgb) ? glColor3f(1.0, 1.0, 0.0) : glIndexi(ci); + glBegin(GL_LINE_STRIP); + glVertex3fv(pntA); + glVertex3fv(pntB); + glEnd(); + + glPointSize(1); + + SetColor(COLOR_GREEN); + glBegin(GL_POINTS); + glVertex3fv(pntA); + glVertex3fv(pntB); + glEnd(); + } + + glPopMatrix(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_TRUE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + windType = (rgb) ? GLUT_RGB : GLUT_INDEX; + windType |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(windType); + + if (glutCreateWindow("Line Test") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/loadppm.c b/progs/samples/loadppm.c new file mode 100644 index 00000000000..be056d62940 --- /dev/null +++ b/progs/samples/loadppm.c @@ -0,0 +1,72 @@ + +typedef struct { + size_t sizeX, sizeY; + GLubyte *data; +} PPMImage; + +static PPMImage *LoadPPM(const char *filename) +{ + char buff[16]; + PPMImage *result; + FILE *fp; + int maxval; + + fp = fopen(filename, "rb"); + if (!fp) + { + fprintf(stderr, "Unable to open file `%s'\n", filename); + exit(1); + } + + if (!fgets(buff, sizeof(buff), fp)) + { + perror(filename); + exit(1); + } + + if (buff[0] != 'P' || buff[1] != '6') + { + fprintf(stderr, "Invalid image format (must be `P6')\n"); + exit(1); + } + + result = (PPMImage *) malloc(sizeof(PPMImage)); + if (!result) + { + fprintf(stderr, "Unable to allocate memory\n"); + exit(1); + } + + if (fscanf(fp, "%lu %lu", &result->sizeX, &result->sizeY) != 2) + { + fprintf(stderr, "Error loading image `%s'\n", filename); + exit(1); + } + + if (fscanf(fp, "%d", &maxval) != 1) + { + fprintf(stderr, "Error loading image `%s'\n", filename); + exit(1); + } + + while (fgetc(fp) != '\n') + ; + + result->data = (GLubyte *) malloc(3 * result->sizeX * result->sizeY); + if (!result) + { + fprintf(stderr, "Unable to allocate memory\n"); + exit(1); + } + + if (fread(result->data, 3 * result->sizeX, result->sizeY, fp) != result->sizeY) + { + fprintf(stderr, "Error loading image `%s'\n", filename); + exit(1); + } + + fclose(fp); + + return result; +} + diff --git a/progs/samples/logo.c b/progs/samples/logo.c new file mode 100644 index 00000000000..ae74af685a7 --- /dev/null +++ b/progs/samples/logo.c @@ -0,0 +1,1635 @@ + +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define PI 3.141592654 + +#define BLACK 0 +#define GRAY 128 +#define WHITE 255 +#define BL 0x00 +#define WH 0xFF +#define RD 0xA4,0x00,0x00,0xFF +#define WT 0xFF,0xFF,0xFF,0xFF + +#define CHECKIMAGEWIDTH 8 +#define CHECKIMAGEHEIGHT 8 +#define BRICKIMAGEWIDTH 16 +#define BRICKIMAGEHEIGHT 16 + + +GLenum rgb, doubleBuffer; + +#include "tkmap.c" + +float black[3] = {0.0, 0.0, 0.0}; +float white[3] = {1.0, 1.0, 1.0}; +float gray[3] = {0.5, 0.5, 0.5}; +float blue[3] = {0.0, 0.0, 1.0}; +GLint colorIndexes[3] = {0, 200, 255}; + +GLenum polyMode; +GLboolean dithering; +GLboolean shade; +GLboolean doStipple; +GLboolean noDraw = 0; +GLboolean LineSmooth = GL_FALSE; + +double plane[4] = {1.0, 0.0, -1.0, 0.0}; +float xRotation = 30.0, yRotation = 30.0; +float zTranslation = -15.0; + +GLint singleCylinder; +GLint doubleCylinder; +GLint elbow, logo; + +GLubyte checkImage[3*CHECKIMAGEWIDTH*CHECKIMAGEHEIGHT] = { + BL, BL, BL, WH, WH, WH, BL, BL, BL, WH, WH, WH, BL, BL, BL, WH, + WH, WH, BL, BL, BL, WH, WH, WH, WH, WH, WH, BL, BL, BL, WH, WH, + WH, BL, BL, BL, WH, WH, WH, BL, BL, BL, WH, WH, WH, BL, BL, BL, + BL, BL, BL, WH, WH, WH, BL, BL, BL, WH, WH, WH, BL, BL, BL, WH, + WH, WH, BL, BL, BL, WH, WH, WH, WH, WH, WH, BL, BL, BL, WH, WH, + WH, BL, BL, BL, WH, WH, WH, BL, BL, BL, WH, WH, WH, BL, BL, BL, + BL, BL, BL, WH, WH, WH, BL, BL, BL, WH, WH, WH, BL, BL, BL, WH, + WH, WH, BL, BL, BL, WH, WH, WH, WH, WH, WH, BL, BL, BL, WH, WH, + WH, BL, BL, BL, WH, WH, WH, BL, BL, BL, WH, WH, WH, BL, BL, BL, + BL, BL, BL, WH, WH, WH, BL, BL, BL, WH, WH, WH, BL, BL, BL, WH, + WH, WH, BL, BL, BL, WH, WH, WH, WH, WH, WH, BL, BL, BL, WH, WH, + WH, BL, BL, BL, WH, WH, WH, BL, BL, BL, WH, WH, WH, BL, BL, BL, +}; +GLubyte brickImage[4*BRICKIMAGEWIDTH*BRICKIMAGEHEIGHT] = { + RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, + RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, + RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, + RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, + WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, + RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, + RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, + RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, + RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, + WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, + RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, + RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, + RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, + RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, + WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, + RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD +}; + +GLubyte *image = checkImage; +GLint imageHeight = CHECKIMAGEHEIGHT; +GLint imageWidth = CHECKIMAGEWIDTH; + +static float decal[] = { + GL_DECAL, +}; +static float modulate[] = { + GL_MODULATE, +}; +static float repeat[] = { + GL_REPEAT, +}; +static float nearest[] = { + GL_NEAREST, +}; + +GLubyte stipple[4*32] = { + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + + 0x00, 0x0F, 0xF0, 0x00, + 0x00, 0x0F, 0xF0, 0x00, + 0x00, 0x0F, 0xF0, 0x00, + 0x00, 0x0F, 0xF0, 0x00, + 0x00, 0x0F, 0xF0, 0x00, + 0x00, 0x0F, 0xF0, 0x00, + 0x00, 0x0F, 0xF0, 0x00, + 0x00, 0x0F, 0xF0, 0x00, + + 0x00, 0x0F, 0xF0, 0x00, + 0x00, 0x0F, 0xF0, 0x00, + 0x00, 0x0F, 0xF0, 0x00, + 0x00, 0x0F, 0xF0, 0x00, + 0x00, 0x0F, 0xF0, 0x00, + 0x00, 0x0F, 0xF0, 0x00, + 0x00, 0x0F, 0xF0, 0x00, + 0x00, 0x0F, 0xF0, 0x00, + + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, +}; + +float tscp[18][2] = { + { + 0.0, 0.0 + }, + { + 1.0, 0.0 + }, + { + 0.0, 0.125 + }, + { + 1.0, 0.125 + }, + { + 0.0, 0.250 + }, + { + 1.0, 0.25 + }, + { + 0.0, 0.375 + }, + { + 1.0, 0.375 + }, + { + 0.0, 0.50 + }, + { + 1.0, 0.50 + }, + { + 0.0, 0.625 + }, + { + 1.0, 0.625 + }, + { + 0.0, 0.75 + }, + { + 1.0, 0.75 + }, + { + 0.0, 0.875 + }, + { + 1.0, 0.875 + }, + { + 0.0, 1.0 + }, + { + 1.0, 1.0 + } +}; +float scp[18][3] = { + { + 1.000000, 0.000000, 0.000000 + }, + { + 1.000000, 0.000000, 5.000000 + }, + { + 0.707107, 0.707107, 0.000000 + }, + { + 0.707107, 0.707107, 5.000000 + }, + { + 0.000000, 1.000000, 0.000000 + }, + { + 0.000000, 1.000000, 5.000000 + }, + { + -0.707107, 0.707107, 0.000000 + }, + { + -0.707107, 0.707107, 5.000000 + }, + { + -1.000000, 0.000000, 0.000000 + }, + { + -1.000000, 0.000000, 5.000000 + }, + { + -0.707107, -0.707107, 0.000000 + }, + { + -0.707107, -0.707107, 5.000000 + }, + { + 0.000000, -1.000000, 0.000000 + }, + { + 0.000000, -1.000000, 5.000000 + }, + { + 0.707107, -0.707107, 0.000000 + }, + { + 0.707107, -0.707107, 5.000000 + }, + { + 1.000000, 0.000000, 0.000000 + }, + { + 1.000000, 0.000000, 5.000000 + } +}; +float dcp[18][3] = { + { + 1.000000, 0.000000, 0.000000 + }, + { + 1.000000, 0.000000, 7.000000 + }, + { + 0.707107, 0.707107, 0.000000 + }, + { + 0.707107, 0.707107, 7.000000 + }, + { + 0.000000, 1.000000, 0.000000 + }, + { + 0.000000, 1.000000, 7.000000 + }, + { + -0.707107, 0.707107, 0.000000 + }, + { + -0.707107, 0.707107, 7.000000 + }, + { + -1.000000, 0.000000, 0.000000 + }, + { + -1.000000, 0.000000, 7.000000 + }, + { + -0.707107, -0.707107, 0.000000 + }, + { + -0.707107, -0.707107, 7.000000 + }, + { + 0.000000, -1.000000, 0.000000 + }, + { + 0.000000, -1.000000, 7.000000 + }, + { + 0.707107, -0.707107, 0.000000 + }, + { + 0.707107, -0.707107, 7.000000 + }, + { + 1.000000, 0.000000, 0.000000 + }, + { + 1.000000, 0.000000, 7.000000 + } +}; +float ep[7][9][3] = { + { + { + 1.000000, 0.000000, 0.000000 + }, + { + 0.707107, 0.707107, 0.000000 + }, + { + 0.000000, 1.000000, 0.000000 + }, + { + -0.707107, 0.707107, 0.000000 + }, + { + -1.000000, 0.000000, 0.000000 + }, + { + -0.707107, -0.707107, 0.000000 + }, + { + 0.000000, -1.000000, 0.000000 + }, + { + 0.707107, -0.707107, 0.000000 + }, + { + 1.000000, 0.000000, 0.000000 + } + }, + { + { + 1.000000, 0.034074, 0.258819 + }, + { + 0.707107, 0.717087, 0.075806 + }, + { + 0.000000, 1.000000, 0.000000 + }, + { + -0.707107, 0.717087, 0.075806 + }, + { + -1.000000, 0.034074, 0.258819 + }, + { + -0.707107, -0.648939, 0.441832 + }, + { + 0.000000, -0.931852, 0.517638 + }, + { + 0.707107, -0.648939, 0.441832 + }, + { + 1.000000, 0.034074, 0.258819 + } + }, + { + { + 1.000000, 0.133975, 0.500000 + }, + { + 0.707107, 0.746347, 0.146447 + }, + { + 0.000000, 1.000000, 0.000000 + }, + { + -0.707107, 0.746347, 0.146447 + }, + { + -1.000000, 0.133975, 0.500000 + }, + { + -0.707107, -0.478398, 0.853553 + }, + { + 0.000000, -0.732051, 1.000000 + }, + { + 0.707107, -0.478398, 0.853553 + }, + { + 1.000000, 0.133975, 0.500000 + } + }, + { + { + 1.000000, 0.292893, 0.707107 + }, + { + 0.707107, 0.792893, 0.207107 + }, + { + 0.000000, 1.000000, 0.000000 + }, + { + -0.707107, 0.792893, 0.207107 + }, + { + -1.000000, 0.292893, 0.707107 + }, + { + -0.707107, -0.207107, 1.207107 + }, + { + 0.000000, -0.414214, 1.414214 + }, + { + 0.707107, -0.207107, 1.207107 + }, + { + 1.000000, 0.292893, 0.707107 + } + }, + { + { + 1.000000, 0.500000, 0.866025 + }, + { + 0.707107, 0.853553, 0.253653 + }, + { + 0.000000, 1.000000, 0.000000 + }, + { + -0.707107, 0.853553, 0.253653 + }, + { + -1.000000, 0.500000, 0.866025 + }, + { + -0.707107, 0.146447, 1.478398 + }, + { + 0.000000, 0.000000, 1.732051 + }, + { + 0.707107, 0.146447, 1.478398 + }, + { + 1.000000, 0.500000, 0.866025 + } + }, + { + { + 1.000000, 0.741181, 0.965926 + }, + { + 0.707107, 0.924194, 0.282913 + }, + { + 0.000000, 1.000000, 0.000000 + }, + { + -0.707107, 0.924194, 0.282913 + }, + { + -1.000000, 0.741181, 0.965926 + }, + { + -0.707107, 0.558168, 1.648939 + }, + { + 0.000000, 0.482362, 1.931852 + }, + { + 0.707107, 0.558168, 1.648939 + }, + { + 1.000000, 0.741181, 0.965926 + } + }, + { + { + 1.000000, 1.000000, 1.000000 + }, + { + 0.707107, 1.000000, 0.292893 + }, + { + 0.000000, 1.000000, 0.000000 + }, + { + -0.707107, 1.000000, 0.292893 + }, + { + -1.000000, 1.000000, 1.000000 + }, + { + -0.707107, 1.000000, 1.707107 + }, + { + 0.000000, 1.000000, 2.000000 + }, + { + 0.707107, 1.000000, 1.707107 + }, + { + 1.000000, 1.000000, 1.000000 + } + } +}; +float en[7][9][3] = { + { + { + 1.000000, 0.000000, 0.000000 + }, + { + 0.707107, 0.707107, 0.000000 + }, + { + 0.000000, 1.000000, 0.000000 + }, + { + -0.707107, 0.707107, 0.000000 + }, + { + -1.000000, 0.000000, 0.000000 + }, + { + -0.707107, -0.707107, 0.000000 + }, + { + 0.000000, -1.000000, 0.000000 + }, + { + 0.707107, -0.707107, 0.000000 + }, + { + 1.000000, 0.000000, 0.000000 + } + }, + { + { + 1.000000, 0.000000, 0.000000 + }, + { + 0.707107, 0.683013, -0.183013 + }, + { + 0.000000, 0.965926, -0.258819 + }, + { + -0.707107, 0.683013, -0.183013 + }, + { + -1.000000, 0.000000, 0.000000 + }, + { + -0.707107, -0.683013, 0.183013 + }, + { + 0.000000, -0.965926, 0.258819 + }, + { + 0.707107, -0.683013, 0.183013 + }, + { + 1.000000, 0.000000, 0.000000 + } + }, + { + { + 1.000000, 0.000000, 0.000000 + }, + { + 0.707107, 0.612372, -0.353553 + }, + { + 0.000000, 0.866025, -0.500000 + }, + { + -0.707107, 0.612372, -0.353553 + }, + { + -1.000000, 0.000000, 0.000000 + }, + { + -0.707107, -0.612372, 0.353553 + }, + { + 0.000000, -0.866025, 0.500000 + }, + { + 0.707107, -0.612372, 0.353553 + }, + { + 1.000000, 0.000000, 0.000000 + } + }, + { + { + 1.000000, 0.000000, 0.000000 + }, + { + /* These 3 lines added by BEP */ + 0.707107, 0.500000, -0.500000 + }, + { + 0.000000, 0.707107, -0.707107 + }, + { + -0.707107, 0.500000, -0.500000 + }, + { + -1.000000, 0.000000, 0.000000 + }, + { + -0.707107, -0.500000, 0.500000 + }, + { + 0.000000, -0.707107, 0.707107 + }, + { + 0.707107, -0.500000, 0.500000 + }, + { + 1.000000, 0.000000, 0.000000 + } + }, + { + { + 1.000000, 0.000000, 0.000000 + }, + { + 0.707107, 0.353553, -0.612372 + }, + { + 0.000000, 0.500000, -0.866025 + }, + { + -0.707107, 0.353553, -0.612372 + }, + { + -1.000000, 0.000000, 0.000000 + }, + { + -0.707107, -0.353553, 0.612372 + }, + { + 0.000000, -0.500000, 0.866025 + }, + { + 0.707107, -0.353553, 0.612372 + }, + { + 1.000000, 0.000000, 0.000000 + } + }, + { + { + 1.000000, 0.000000, 0.000000 + }, + { + 0.707107, 0.183013, -0.683013 + }, + { + 0.000000, 0.258819, -0.965926 + }, + { + -0.707107, 0.183013, -0.683013 + }, + { + -1.000000, 0.000000, 0.000000 + }, + { + -0.707107, -0.183013, 0.683013 + }, + { + 0.000000, -0.258819, 0.965926 + }, + { + 0.707107, -0.183013, 0.683013 + }, + { + 1.000000, 0.000000, 0.000000 + } + }, + { + { + 1.000000, 0.000000, 0.000000 + }, + { + 0.707107, 0.000000, -0.707107 + }, + { + 0.000000, 0.000000, -1.000000 + }, + { + -0.707107, 0.000000, -0.707107 + }, + { + -1.000000, 0.000000, 0.000000 + }, + { + -0.707107, 0.000000, 0.707107 + }, + { + 0.000000, 0.000000, 1.000000 + }, + { + 0.707107, 0.000000, 0.707107 + }, + { + 1.000000, 0.000000, 0.000000 + } + } +}; +float tep[7][9][2] = { + { + { + 0, 0.0 + }, + { + 0.125, 0.0 + }, + { + 0.25, 0.0 + }, + { + 0.375, 0.0 + }, + { + 0.5, 0.0 + }, + { + 0.625, 0.0 + }, + { + 0.75, 0.0 + }, + { + 0.875, 0.0 + }, + { + 1.0, 0.0 + } + }, + { + { + 0, 0.16667 + }, + { + 0.125, 0.16667 + }, + { + 0.25, 0.16667 + }, + { + 0.375, 0.16667 + }, + { + 0.5, 0.16667 + }, + { + 0.625, 0.16667 + }, + { + 0.75, 0.16667 + }, + { + 0.875, 0.16667 + }, + { + 1.0, 0.16667 + } + }, + { + { + 0, 0.33333 + }, + { + 0.125, 0.33333 + }, + { + 0.25, 0.33333 + }, + { + 0.375, 0.33333 + }, + { + 0.5, 0.33333 + }, + { + 0.625, 0.33333 + }, + { + 0.75, 0.33333 + }, + { + 0.875, 0.33333 + }, + { + 1.0, 0.33333 + } + }, + { + { + 0, 0.5 + }, + { + 0.125, 0.5 + }, + { + 0.25, 0.5 + }, + { + 0.375, 0.5 + }, + { + 0.5, 0.5 + }, + { + 0.625, 0.5 + }, + { + 0.75, 0.5 + }, + { + 0.875, 0.5 + }, + { + 1.0, 0.5 + } + }, + { + { + 0, 0.6667 + }, + { + 0.125, 0.6667 + }, + { + 0.25, 0.6667 + }, + { + 0.375, 0.6667 + }, + { + 0.5, 0.6667 + }, + { + 0.625, 0.6667 + }, + { + 0.75, 0.6667 + }, + { + 0.875, 0.6667 + }, + { + 1.0, 0.6667 + } + }, + { + { + 0, 0.83333 + }, + { + 0.125, 0.83333 + }, + { + 0.25, 0.83333 + }, + { + 0.375, 0.83333 + }, + { + 0.5, 0.83333 + }, + { + 0.625, 0.83333 + }, + { + 0.75, 0.83333 + }, + { + 0.875, 0.83333 + }, + { + 1.0, 0.83333 + } + }, + { + { + 0, 1.0 + }, + { + 0.125, 1.0 + }, + { + 0.25, 1.0 + }, + { + 0.375, 1.0 + }, + { + 0.5, 1.0 + }, + { + 0.625, 1.0 + }, + { + 0.75, 1.0 + }, + { + 0.875, 1.0 + }, + { + 1.0, 1.0 + } + } +}; + + +static void SetUpAntiAliasedGrayScale(void) +{ + float color; + GLint i, j; + + for (i = 0; i < 16; i++) { + color = (2 * i + 1) / 32.0; + for (j = 0; j < 16; j++) { + glutSetColor(i*16+j, color*j/15.0, color*j/15.0, color*j/15.0); + } + } +} + +static void BendForward(void) +{ + + glTranslatef(0.0, 1.0, 0.0); + glRotatef(90.0, 1, 0, 0); + glTranslatef(0.0, -1.0, 0.0); +} + +static void BendLeft(void) +{ + + glRotatef(-90.0, 0, 0, 1); + glTranslatef(0.0, 1.0, 0.0); + glRotatef(90.0, 1, 0, 0); + glTranslatef(0.0, -1.0, 0.0); +} + +static void BendRight(void) +{ + + glRotatef(90.0, 0, 0, 1); + glTranslatef(0.0, 1.0, 0.0); + glRotatef(90.0, 1, 0, 0); + glTranslatef(0.0, -1.0, 0.0); +} + +static void BuildSingleCylinder(void) +{ + + glNewList(singleCylinder, GL_COMPILE); + + glBegin(GL_TRIANGLE_STRIP); + glNormal3fv(scp[0]); glTexCoord2fv(tscp[0]); glVertex3fv(scp[0]); + glNormal3fv(scp[0]); glTexCoord2fv(tscp[1]); glVertex3fv(scp[1]); + glNormal3fv(scp[2]); glTexCoord2fv(tscp[2]); glVertex3fv(scp[2]); + glNormal3fv(scp[2]); glTexCoord2fv(tscp[3]); glVertex3fv(scp[3]); + glNormal3fv(scp[4]); glTexCoord2fv(tscp[4]); glVertex3fv(scp[4]); + glNormal3fv(scp[4]); glTexCoord2fv(tscp[5]); glVertex3fv(scp[5]); + glNormal3fv(scp[6]); glTexCoord2fv(tscp[6]); glVertex3fv(scp[6]); + glNormal3fv(scp[6]); glTexCoord2fv(tscp[7]); glVertex3fv(scp[7]); + glNormal3fv(scp[8]); glTexCoord2fv(tscp[8]); glVertex3fv(scp[8]); + glNormal3fv(scp[8]); glTexCoord2fv(tscp[9]); glVertex3fv(scp[9]); + glNormal3fv(scp[10]); glTexCoord2fv(tscp[10]); glVertex3fv(scp[10]); + glNormal3fv(scp[10]); glTexCoord2fv(tscp[11]); glVertex3fv(scp[11]); + glNormal3fv(scp[12]); glTexCoord2fv(tscp[12]); glVertex3fv(scp[12]); + glNormal3fv(scp[12]); glTexCoord2fv(tscp[13]); glVertex3fv(scp[13]); + glNormal3fv(scp[14]); glTexCoord2fv(tscp[14]); glVertex3fv(scp[14]); + glNormal3fv(scp[14]); glTexCoord2fv(tscp[15]); glVertex3fv(scp[15]); + glNormal3fv(scp[16]); glTexCoord2fv(tscp[16]); glVertex3fv(scp[16]); + glNormal3fv(scp[16]); glTexCoord2fv(tscp[17]); glVertex3fv(scp[17]); + glEnd(); + + glEndList(); +} + +static void BuildDoubleCylinder(void) +{ + + glNewList(doubleCylinder, GL_COMPILE); + + glBegin(GL_TRIANGLE_STRIP); + glNormal3fv(dcp[0]); glTexCoord2fv(tscp[0]); glVertex3fv(dcp[0]); + glNormal3fv(dcp[0]); glTexCoord2fv(tscp[1]); glVertex3fv(dcp[1]); + glNormal3fv(dcp[2]); glTexCoord2fv(tscp[2]); glVertex3fv(dcp[2]); + glNormal3fv(dcp[2]); glTexCoord2fv(tscp[3]); glVertex3fv(dcp[3]); + glNormal3fv(dcp[4]); glTexCoord2fv(tscp[4]); glVertex3fv(dcp[4]); + glNormal3fv(dcp[4]); glTexCoord2fv(tscp[5]); glVertex3fv(dcp[5]); + glNormal3fv(dcp[6]); glTexCoord2fv(tscp[6]); glVertex3fv(dcp[6]); + glNormal3fv(dcp[6]); glTexCoord2fv(tscp[7]); glVertex3fv(dcp[7]); + glNormal3fv(dcp[8]); glTexCoord2fv(tscp[8]); glVertex3fv(dcp[8]); + glNormal3fv(dcp[8]); glTexCoord2fv(tscp[9]); glVertex3fv(dcp[9]); + glNormal3fv(dcp[10]); glTexCoord2fv(tscp[10]); glVertex3fv(dcp[10]); + glNormal3fv(dcp[10]); glTexCoord2fv(tscp[11]); glVertex3fv(dcp[11]); + glNormal3fv(dcp[12]); glTexCoord2fv(tscp[12]); glVertex3fv(dcp[12]); + glNormal3fv(dcp[12]); glTexCoord2fv(tscp[13]); glVertex3fv(dcp[13]); + glNormal3fv(dcp[14]); glTexCoord2fv(tscp[14]); glVertex3fv(dcp[14]); + glNormal3fv(dcp[14]); glTexCoord2fv(tscp[15]); glVertex3fv(dcp[15]); + glNormal3fv(dcp[16]); glTexCoord2fv(tscp[16]); glVertex3fv(dcp[16]); + glNormal3fv(dcp[16]); glTexCoord2fv(tscp[17]); glVertex3fv(dcp[17]); + glEnd(); + + glEndList(); +} + +static void BuildElbow(void) +{ + + glNewList(elbow, GL_COMPILE); + + glBegin(GL_TRIANGLE_STRIP); + glNormal3fv(en[0][0]); glTexCoord2fv(tep[0][0]); glVertex3fv(ep[0][0]); + glNormal3fv(en[1][0]); glTexCoord2fv(tep[1][0]); glVertex3fv(ep[1][0]); + glNormal3fv(en[0][1]); glTexCoord2fv(tep[0][1]); glVertex3fv(ep[0][1]); + glNormal3fv(en[1][1]); glTexCoord2fv(tep[1][1]); glVertex3fv(ep[1][1]); + glNormal3fv(en[0][2]); glTexCoord2fv(tep[0][2]); glVertex3fv(ep[0][2]); + glNormal3fv(en[1][2]); glTexCoord2fv(tep[1][2]); glVertex3fv(ep[1][2]); + glNormal3fv(en[0][3]); glTexCoord2fv(tep[0][3]); glVertex3fv(ep[0][3]); + glNormal3fv(en[1][3]); glTexCoord2fv(tep[1][3]); glVertex3fv(ep[1][3]); + glNormal3fv(en[0][4]); glTexCoord2fv(tep[0][4]); glVertex3fv(ep[0][4]); + glNormal3fv(en[1][4]); glTexCoord2fv(tep[1][4]); glVertex3fv(ep[1][4]); + glNormal3fv(en[0][5]); glTexCoord2fv(tep[0][5]); glVertex3fv(ep[0][5]); + glNormal3fv(en[1][5]); glTexCoord2fv(tep[1][5]); glVertex3fv(ep[1][5]); + glNormal3fv(en[0][6]); glTexCoord2fv(tep[0][6]); glVertex3fv(ep[0][6]); + glNormal3fv(en[1][6]); glTexCoord2fv(tep[1][6]); glVertex3fv(ep[1][6]); + glNormal3fv(en[0][7]); glTexCoord2fv(tep[0][7]); glVertex3fv(ep[0][7]); + glNormal3fv(en[1][7]); glTexCoord2fv(tep[1][7]); glVertex3fv(ep[1][7]); + glNormal3fv(en[0][8]); glTexCoord2fv(tep[0][8]); glVertex3fv(ep[0][8]); + glNormal3fv(en[1][8]); glTexCoord2fv(tep[1][8]); glVertex3fv(ep[1][8]); + glEnd(); + glBegin(GL_TRIANGLE_STRIP); + glNormal3fv(en[1][0]); glTexCoord2fv(tep[1][0]); glVertex3fv(ep[1][0]); + glNormal3fv(en[2][0]); glTexCoord2fv(tep[2][0]); glVertex3fv(ep[2][0]); + glNormal3fv(en[1][1]); glTexCoord2fv(tep[1][1]); glVertex3fv(ep[1][1]); + glNormal3fv(en[2][1]); glTexCoord2fv(tep[2][1]); glVertex3fv(ep[2][1]); + glNormal3fv(en[1][2]); glTexCoord2fv(tep[1][2]); glVertex3fv(ep[1][2]); + glNormal3fv(en[2][2]); glTexCoord2fv(tep[2][2]); glVertex3fv(ep[2][2]); + glNormal3fv(en[1][3]); glTexCoord2fv(tep[1][3]); glVertex3fv(ep[1][3]); + glNormal3fv(en[2][3]); glTexCoord2fv(tep[2][3]); glVertex3fv(ep[2][3]); + glNormal3fv(en[1][4]); glTexCoord2fv(tep[1][4]); glVertex3fv(ep[1][4]); + glNormal3fv(en[2][4]); glTexCoord2fv(tep[2][4]); glVertex3fv(ep[2][4]); + glNormal3fv(en[1][5]); glTexCoord2fv(tep[1][5]); glVertex3fv(ep[1][5]); + glNormal3fv(en[2][5]); glTexCoord2fv(tep[2][5]); glVertex3fv(ep[2][5]); + glNormal3fv(en[1][6]); glTexCoord2fv(tep[1][6]); glVertex3fv(ep[1][6]); + glNormal3fv(en[2][6]); glTexCoord2fv(tep[2][6]); glVertex3fv(ep[2][6]); + glNormal3fv(en[1][7]); glTexCoord2fv(tep[1][7]); glVertex3fv(ep[1][7]); + glNormal3fv(en[2][7]); glTexCoord2fv(tep[2][7]); glVertex3fv(ep[2][7]); + glNormal3fv(en[1][8]); glTexCoord2fv(tep[1][8]); glVertex3fv(ep[1][8]); + glNormal3fv(en[2][8]); glTexCoord2fv(tep[2][8]); glVertex3fv(ep[2][8]); + glEnd(); + glBegin(GL_TRIANGLE_STRIP); + glNormal3fv(en[2][0]); glTexCoord2fv(tep[2][0]); glVertex3fv(ep[2][0]); + glNormal3fv(en[3][0]); glTexCoord2fv(tep[3][0]); glVertex3fv(ep[3][0]); + glNormal3fv(en[2][1]); glTexCoord2fv(tep[2][1]); glVertex3fv(ep[2][1]); + glNormal3fv(en[3][1]); glTexCoord2fv(tep[3][1]); glVertex3fv(ep[3][1]); + glNormal3fv(en[2][2]); glTexCoord2fv(tep[2][2]); glVertex3fv(ep[2][2]); + glNormal3fv(en[3][2]); glTexCoord2fv(tep[3][2]); glVertex3fv(ep[3][2]); + glNormal3fv(en[2][3]); glTexCoord2fv(tep[2][3]); glVertex3fv(ep[2][3]); + glNormal3fv(en[3][3]); glTexCoord2fv(tep[3][3]); glVertex3fv(ep[3][3]); + glNormal3fv(en[2][4]); glTexCoord2fv(tep[2][4]); glVertex3fv(ep[2][4]); + glNormal3fv(en[3][4]); glTexCoord2fv(tep[3][4]); glVertex3fv(ep[3][4]); + glNormal3fv(en[2][5]); glTexCoord2fv(tep[2][5]); glVertex3fv(ep[2][5]); + glNormal3fv(en[3][5]); glTexCoord2fv(tep[3][5]); glVertex3fv(ep[3][5]); + glNormal3fv(en[2][6]); glTexCoord2fv(tep[2][6]); glVertex3fv(ep[2][6]); + glNormal3fv(en[3][6]); glTexCoord2fv(tep[3][6]); glVertex3fv(ep[3][6]); + glNormal3fv(en[2][7]); glTexCoord2fv(tep[2][7]); glVertex3fv(ep[2][7]); + glNormal3fv(en[3][7]); glTexCoord2fv(tep[3][7]); glVertex3fv(ep[3][7]); + glNormal3fv(en[2][8]); glTexCoord2fv(tep[2][8]); glVertex3fv(ep[2][8]); + glNormal3fv(en[3][8]); glTexCoord2fv(tep[3][8]); glVertex3fv(ep[3][8]); + glEnd(); + glBegin(GL_TRIANGLE_STRIP); + glNormal3fv(en[3][0]); glTexCoord2fv(tep[3][0]); glVertex3fv(ep[3][0]); + glNormal3fv(en[4][0]); glTexCoord2fv(tep[4][0]); glVertex3fv(ep[4][0]); + glNormal3fv(en[3][1]); glTexCoord2fv(tep[3][1]); glVertex3fv(ep[3][1]); + glNormal3fv(en[4][1]); glTexCoord2fv(tep[4][1]); glVertex3fv(ep[4][1]); + glNormal3fv(en[3][2]); glTexCoord2fv(tep[3][2]); glVertex3fv(ep[3][2]); + glNormal3fv(en[4][2]); glTexCoord2fv(tep[4][2]); glVertex3fv(ep[4][2]); + glNormal3fv(en[3][3]); glTexCoord2fv(tep[3][3]); glVertex3fv(ep[3][3]); + glNormal3fv(en[4][3]); glTexCoord2fv(tep[4][3]); glVertex3fv(ep[4][3]); + glNormal3fv(en[3][4]); glTexCoord2fv(tep[3][4]); glVertex3fv(ep[3][4]); + glNormal3fv(en[4][4]); glTexCoord2fv(tep[4][4]); glVertex3fv(ep[4][4]); + glNormal3fv(en[3][5]); glTexCoord2fv(tep[3][5]); glVertex3fv(ep[3][5]); + glNormal3fv(en[4][5]); glTexCoord2fv(tep[4][5]); glVertex3fv(ep[4][5]); + glNormal3fv(en[3][6]); glTexCoord2fv(tep[3][6]); glVertex3fv(ep[3][6]); + glNormal3fv(en[4][6]); glTexCoord2fv(tep[4][6]); glVertex3fv(ep[4][6]); + glNormal3fv(en[3][7]); glTexCoord2fv(tep[3][7]); glVertex3fv(ep[3][7]); + glNormal3fv(en[4][7]); glTexCoord2fv(tep[4][7]); glVertex3fv(ep[4][7]); + glNormal3fv(en[3][8]); glTexCoord2fv(tep[3][8]); glVertex3fv(ep[3][8]); + glNormal3fv(en[4][8]); glTexCoord2fv(tep[4][8]); glVertex3fv(ep[4][8]); + glEnd(); + glBegin(GL_TRIANGLE_STRIP); + glNormal3fv(en[4][0]); glTexCoord2fv(tep[4][0]); glVertex3fv(ep[4][0]); + glNormal3fv(en[5][0]); glTexCoord2fv(tep[5][0]); glVertex3fv(ep[5][0]); + glNormal3fv(en[4][1]); glTexCoord2fv(tep[4][1]); glVertex3fv(ep[4][1]); + glNormal3fv(en[5][1]); glTexCoord2fv(tep[5][1]); glVertex3fv(ep[5][1]); + glNormal3fv(en[4][2]); glTexCoord2fv(tep[4][2]); glVertex3fv(ep[4][2]); + glNormal3fv(en[5][2]); glTexCoord2fv(tep[5][2]); glVertex3fv(ep[5][2]); + glNormal3fv(en[4][3]); glTexCoord2fv(tep[4][3]); glVertex3fv(ep[4][3]); + glNormal3fv(en[5][3]); glTexCoord2fv(tep[5][3]); glVertex3fv(ep[5][3]); + glNormal3fv(en[4][4]); glTexCoord2fv(tep[4][4]); glVertex3fv(ep[4][4]); + glNormal3fv(en[5][4]); glTexCoord2fv(tep[5][4]); glVertex3fv(ep[5][4]); + glNormal3fv(en[4][5]); glTexCoord2fv(tep[4][5]); glVertex3fv(ep[4][5]); + glNormal3fv(en[5][5]); glTexCoord2fv(tep[5][5]); glVertex3fv(ep[5][5]); + glNormal3fv(en[4][6]); glTexCoord2fv(tep[4][6]); glVertex3fv(ep[4][6]); + glNormal3fv(en[5][6]); glTexCoord2fv(tep[5][6]); glVertex3fv(ep[5][6]); + glNormal3fv(en[4][7]); glTexCoord2fv(tep[4][7]); glVertex3fv(ep[4][7]); + glNormal3fv(en[5][7]); glTexCoord2fv(tep[5][7]); glVertex3fv(ep[5][7]); + glNormal3fv(en[4][8]); glTexCoord2fv(tep[4][8]); glVertex3fv(ep[4][8]); + glNormal3fv(en[5][8]); glTexCoord2fv(tep[5][8]); glVertex3fv(ep[5][8]); + glEnd(); + glBegin(GL_TRIANGLE_STRIP); + glNormal3fv(en[5][0]); glTexCoord2fv(tep[5][0]); glVertex3fv(ep[5][0]); + glNormal3fv(en[6][0]); glTexCoord2fv(tep[6][0]); glVertex3fv(ep[6][0]); + glNormal3fv(en[5][1]); glTexCoord2fv(tep[5][1]); glVertex3fv(ep[5][1]); + glNormal3fv(en[6][1]); glTexCoord2fv(tep[6][1]); glVertex3fv(ep[6][1]); + glNormal3fv(en[5][2]); glTexCoord2fv(tep[5][2]); glVertex3fv(ep[5][2]); + glNormal3fv(en[6][2]); glTexCoord2fv(tep[6][2]); glVertex3fv(ep[6][2]); + glNormal3fv(en[5][3]); glTexCoord2fv(tep[5][3]); glVertex3fv(ep[5][3]); + glNormal3fv(en[6][3]); glTexCoord2fv(tep[6][3]); glVertex3fv(ep[6][3]); + glNormal3fv(en[5][4]); glTexCoord2fv(tep[5][4]); glVertex3fv(ep[5][4]); + glNormal3fv(en[6][4]); glTexCoord2fv(tep[6][4]); glVertex3fv(ep[6][4]); + glNormal3fv(en[5][5]); glTexCoord2fv(tep[5][5]); glVertex3fv(ep[5][5]); + glNormal3fv(en[6][5]); glTexCoord2fv(tep[6][5]); glVertex3fv(ep[6][5]); + glNormal3fv(en[5][6]); glTexCoord2fv(tep[5][6]); glVertex3fv(ep[5][6]); + glNormal3fv(en[6][6]); glTexCoord2fv(tep[6][6]); glVertex3fv(ep[6][6]); + glNormal3fv(en[5][7]); glTexCoord2fv(tep[5][7]); glVertex3fv(ep[5][7]); + glNormal3fv(en[6][7]); glTexCoord2fv(tep[6][7]); glVertex3fv(ep[6][7]); + glNormal3fv(en[5][8]); glTexCoord2fv(tep[5][8]); glVertex3fv(ep[5][8]); + glNormal3fv(en[6][8]); glTexCoord2fv(tep[6][8]); glVertex3fv(ep[6][8]); + glEnd(); + + glEndList(); +} + +static void BuildLogo(void) +{ + + glNewList(logo, GL_COMPILE); + + glTranslatef(5.5, -3.5, 4.5); + glTranslatef(0.0, 0.0, -7.0); + glCallList(doubleCylinder); + BendForward(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -7.0); + glCallList(doubleCylinder); + BendForward(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -5.0); + glCallList(singleCylinder); + BendRight(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -7.0); + glCallList(doubleCylinder); + BendForward(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -7.0); + glCallList(doubleCylinder); + BendForward(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -5.0); + glCallList(singleCylinder); + BendLeft(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -7.0); + glCallList(doubleCylinder); + BendForward(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -7.0); + glCallList(doubleCylinder); + BendForward(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -5.0); + glCallList(singleCylinder); + BendRight(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -7.0); + glCallList(doubleCylinder); + BendForward(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -7.0); + glCallList(doubleCylinder); + BendForward(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -5.0); + glCallList(singleCylinder); + BendLeft(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -7.0); + glCallList(doubleCylinder); + BendForward(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -7.0); + glCallList(doubleCylinder); + BendForward(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -5.0); + glCallList(singleCylinder); + BendRight(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -7.0); + glCallList(doubleCylinder); + BendForward(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -7.0); + glCallList(doubleCylinder); + BendForward(); + glCallList(elbow); + glTranslatef(0.0, 0.0, -5.0); + glCallList(singleCylinder); + BendLeft(); + glCallList(elbow); + + glEndList(); +} + +static void BuildLists(void) +{ + + singleCylinder = glGenLists(1); + doubleCylinder = glGenLists(1); + elbow = glGenLists(1); + logo = glGenLists(1); + + BuildSingleCylinder(); + BuildDoubleCylinder(); + BuildElbow(); + BuildLogo(); +} + +static void Init(void) +{ + static float ambient[] = {0.1, 0.1, 0.1, 1.0}; + static float diffuse[] = {0.5, 1.0, 1.0, 1.0}; + static float position[] = {90.0, 90.0, 150.0, 0.0}; + static float front_mat_shininess[] = {30.0}; + static float front_mat_specular[] = {0.2, 0.2, 0.2, 1.0}; + static float front_mat_diffuse[] = {0.5, 0.28, 0.38, 1.0}; + static float back_mat_shininess[] = {50.0}; + static float back_mat_specular[] = {0.5, 0.5, 0.2, 1.0}; + static float back_mat_diffuse[] = {1.0, 1.0, 0.2, 1.0}; + static float lmodel_ambient[] = {1.0, 1.0, 1.0, 1.0}; + static float lmodel_twoside[] = {GL_TRUE}; + + glClearColor(0.0, 0.0, 0.0, 0.0); + + glFrontFace(GL_CW); + + glEnable(GL_DEPTH_TEST); + + glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient); + glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside); + glLightfv(GL_LIGHT0, GL_AMBIENT, ambient); + glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse); + glLightfv(GL_LIGHT0, GL_POSITION, position); + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + + glMaterialfv(GL_FRONT, GL_SHININESS, front_mat_shininess); + glMaterialfv(GL_FRONT, GL_SPECULAR, front_mat_specular); + glMaterialfv(GL_FRONT, GL_DIFFUSE, front_mat_diffuse); + glMaterialfv(GL_BACK, GL_SHININESS, back_mat_shininess); + glMaterialfv(GL_BACK, GL_SPECULAR, back_mat_specular); + glMaterialfv(GL_BACK, GL_DIFFUSE, back_mat_diffuse); + + glEnable(GL_CLIP_PLANE0); + + if (rgb) { + glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, decal); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, repeat); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, repeat); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, nearest); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, nearest); + glTexImage2D(GL_TEXTURE_2D, 0, 3, CHECKIMAGEWIDTH, CHECKIMAGEHEIGHT, 0, + GL_RGB, GL_UNSIGNED_BYTE, (GLvoid *)checkImage); + glEnable(GL_TEXTURE_2D); + + glCullFace(GL_BACK); + glEnable(GL_CULL_FACE); + } else { + SetGreyRamp(); + /* commented out by BrianP because it's the wrong way to handle a 4-bit visual! + if (doubleBuffer) { + colorIndexes[1] = 10; + colorIndexes[2] = 15; + } + */ + glMaterialiv(GL_FRONT_AND_BACK, GL_COLOR_INDEXES, colorIndexes); + } + + BuildLists(); + + dithering = GL_TRUE; + shade = GL_TRUE; + doStipple = GL_FALSE; + polyMode = GL_BACK; +} + +static void Reshape(int width, int height) +{ + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluPerspective(90, 1.0, 1.0, 200.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key2(int key, int x, int y) +{ + (void) x; + (void) y; + switch (key) { + case GLUT_KEY_LEFT: + yRotation += 0.5; + break; + case GLUT_KEY_RIGHT: + yRotation -= 0.5; + break; + case GLUT_KEY_UP: + plane[3] += 2.0; + break; + case GLUT_KEY_DOWN: + plane[3] -= 2.0; + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Key(unsigned char key, int x, int y) +{ + (void) x; + (void) y; + switch (key) { + case 27: + exit(1); + + case 'Z': + zTranslation -= 1.0; + break; + case 'z': + zTranslation += 1.0; + break; + + case '1': + glPolygonMode(polyMode, GL_POINT); + break; + case '2': + glPolygonMode(polyMode, GL_LINE); + break; + case '3': + glPolygonMode(polyMode, GL_FILL); + break; + case 'p': + switch (polyMode) { + case GL_BACK: + polyMode = GL_FRONT; + printf("PolygonMode GL_FRONT\n"); + break; + case GL_FRONT: + polyMode = GL_FRONT_AND_BACK; + printf("PolygonMode GL_FRONT_AND_BACK\n"); + break; + case GL_FRONT_AND_BACK: + polyMode = GL_BACK; + printf("PolygonMode GL_BACK\n"); + break; + default: + break; + } + break; + + case '4': + glHint(GL_POLYGON_SMOOTH_HINT, GL_NICEST); + break; + case '5': + glEnable(GL_POLYGON_SMOOTH); + if (rgb) { + glBlendFunc(GL_SRC_ALPHA, GL_ONE); + glEnable(GL_BLEND); + glDisable(GL_DEPTH_TEST); + } else { + SetUpAntiAliasedGrayScale(); + } + break; + case '6': + glDisable(GL_POLYGON_SMOOTH); + if (rgb) { + glBlendFunc(GL_ONE, GL_ZERO); + glDisable(GL_BLEND); + glEnable(GL_DEPTH_TEST); + } else { + SetGreyRamp(); + } + break; + + case '8': + dithering = !dithering; + (dithering) ? glEnable(GL_DITHER) : glDisable(GL_DITHER); + break; + + case '9': + doStipple = !doStipple; + if (doStipple) { + glPolygonStipple(stipple); + glEnable(GL_POLYGON_STIPPLE); + } else { + glDisable(GL_POLYGON_STIPPLE); + } + break; + + case '0': + shade = !shade; + (shade) ? glShadeModel(GL_SMOOTH) : glShadeModel(GL_FLAT); + break; + + case 'q': + glDisable(GL_CULL_FACE); + printf("disable culling\n"); + break; + case 'w': + glEnable(GL_CULL_FACE); + glCullFace(GL_FRONT); + printf("enable front face culling\n"); + break; + case 'e': + glEnable(GL_CULL_FACE); + glCullFace(GL_BACK); + printf("enable back face culling\n"); + break; + + case 'r': + glFrontFace(GL_CW); + break; + case 't': + glFrontFace(GL_CCW); + break; + case 'y': + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glPixelStorei(GL_UNPACK_LSB_FIRST, 0); + glPolygonStipple(stipple); + break; + case 'u': + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glPixelStorei(GL_UNPACK_LSB_FIRST, 1); + glPolygonStipple(stipple); + break; + + case 'a': + glEnable(GL_TEXTURE_2D); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, repeat); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, repeat); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, nearest); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, nearest); + glTexImage2D(GL_TEXTURE_2D, 0, 4, BRICKIMAGEWIDTH, + BRICKIMAGEHEIGHT, 0, GL_RGBA, GL_UNSIGNED_BYTE, + (GLvoid *)brickImage); + break; + case 's': + glEnable(GL_TEXTURE_2D); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, repeat); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, repeat); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, nearest); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, nearest); + glTexImage2D(GL_TEXTURE_2D, 0, 3, CHECKIMAGEWIDTH, + CHECKIMAGEHEIGHT, 0, GL_RGB, GL_UNSIGNED_BYTE, + (GLvoid *)checkImage); + break; + case 'd': + glDisable(GL_TEXTURE_2D); + break; + + case 'f': + glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, decal); + break; + case 'g': + glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, modulate); + break; + + case 'n': + /* added by BrianP */ + noDraw = !noDraw; + if (noDraw) { + glDrawBuffer( GL_NONE ); + } + else { + if (doubleBuffer) { + glDrawBuffer( GL_BACK ); + } + else { + glDrawBuffer( GL_FRONT ); + } + } + break; + + case 'l': + /* Line Smooth - added by BrianP */ + LineSmooth = !LineSmooth; + if (LineSmooth) { + glEnable(GL_LINE_SMOOTH); + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + glEnable(GL_BLEND); + } + else { + glDisable(GL_LINE_SMOOTH); + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + glDisable(GL_BLEND); + } + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + + glPushMatrix(); + + glTranslatef(0, 0, zTranslation); + glRotatef(30.0, 1, 0, 0); + glRotatef(yRotation, 0, 1, 0); + glClipPlane(GL_CLIP_PLANE0, plane); + glCallList(logo); + + glPopMatrix(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + unsigned int type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + type = GLUT_DEPTH; + type |= (rgb) ? GLUT_RGB : GLUT_INDEX; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Logo Test") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutSpecialFunc(Key2); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/nurb.c b/progs/samples/nurb.c new file mode 100644 index 00000000000..dc8991295e8 --- /dev/null +++ b/progs/samples/nurb.c @@ -0,0 +1,357 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> +#include <GL/glut.h> + + +#ifndef CALLBACK +#define CALLBACK +#endif + + +#define INREAL float + +#define S_NUMPOINTS 13 +#define S_ORDER 3 +#define S_NUMKNOTS (S_NUMPOINTS + S_ORDER) +#define T_NUMPOINTS 3 +#define T_ORDER 3 +#define T_NUMKNOTS (T_NUMPOINTS + T_ORDER) +#define SQRT_TWO 1.41421356237309504880 + + +typedef INREAL Point[4]; + + +GLenum doubleBuffer; + +GLenum expectedError; +GLint rotX = 40, rotY = 40; +INREAL sknots[S_NUMKNOTS] = { + -1.0, -1.0, -1.0, 0.0, 1.0, 2.0, 3.0, 4.0, + 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 9.0, 9.0 +}; +INREAL tknots[T_NUMKNOTS] = { + 1.0, 1.0, 1.0, 2.0, 2.0, 2.0 +}; +Point ctlpoints[S_NUMPOINTS][T_NUMPOINTS] = { + { + { + 4.0, 2.0, 2.0, 1.0 + }, + { + 4.0, 1.6, 2.5, 1.0 + }, + { + 4.0, 2.0, 3.0, 1.0 + } + }, + { + { + 5.0, 4.0, 2.0, 1.0 + }, + { + 5.0, 4.0, 2.5, 1.0 + }, + { + 5.0, 4.0, 3.0, 1.0 + } + }, + { + { + 6.0, 5.0, 2.0, 1.0 + }, + { + 6.0, 5.0, 2.5, 1.0 + }, + { + 6.0, 5.0, 3.0, 1.0 + } + }, + { + { + SQRT_TWO*6.0, SQRT_TWO*6.0, SQRT_TWO*2.0, SQRT_TWO + }, + { + SQRT_TWO*6.0, SQRT_TWO*6.0, SQRT_TWO*2.5, SQRT_TWO + }, + { + SQRT_TWO*6.0, SQRT_TWO*6.0, SQRT_TWO*3.0, SQRT_TWO + } + }, + { + { + 5.2, 6.7, 2.0, 1.0 + }, + { + 5.2, 6.7, 2.5, 1.0 + }, + { + 5.2, 6.7, 3.0, 1.0 + } + }, + { + { + SQRT_TWO*4.0, SQRT_TWO*6.0, SQRT_TWO*2.0, SQRT_TWO + }, + { + SQRT_TWO*4.0, SQRT_TWO*6.0, SQRT_TWO*2.5, SQRT_TWO + }, + { + SQRT_TWO*4.0, SQRT_TWO*6.0, SQRT_TWO*3.0, SQRT_TWO + } + }, + { + { + 4.0, 5.2, 2.0, 1.0 + }, + { + 4.0, 4.6, 2.5, 1.0 + }, + { + 4.0, 5.2, 3.0, 1.0 + } + }, + { + { + SQRT_TWO*4.0, SQRT_TWO*6.0, SQRT_TWO*2.0, SQRT_TWO + }, + { + SQRT_TWO*4.0, SQRT_TWO*6.0, SQRT_TWO*2.5, SQRT_TWO + }, + { + SQRT_TWO*4.0, SQRT_TWO*6.0, SQRT_TWO*3.0, SQRT_TWO + } + }, + { + { + 2.8, 6.7, 2.0, 1.0 + }, + { + 2.8, 6.7, 2.5, 1.0 + }, + { + 2.8, 6.7, 3.0, 1.0 + } + }, + { + { + SQRT_TWO*2.0, SQRT_TWO*6.0, SQRT_TWO*2.0, SQRT_TWO + }, + { + SQRT_TWO*2.0, SQRT_TWO*6.0, SQRT_TWO*2.5, SQRT_TWO + }, + { + SQRT_TWO*2.0, SQRT_TWO*6.0, SQRT_TWO*3.0, SQRT_TWO + } + }, + { + { + 2.0, 5.0, 2.0, 1.0 + }, + { + 2.0, 5.0, 2.5, 1.0 + }, + { + 2.0, 5.0, 3.0, 1.0 + } + }, + { + { + 3.0, 4.0, 2.0, 1.0 + }, + { + 3.0, 4.0, 2.5, 1.0 + }, + { + 3.0, 4.0, 3.0, 1.0 + } + }, + { + { + 4.0, 2.0, 2.0, 1.0 + }, + { + 4.0, 1.6, 2.5, 1.0 + }, + { + 4.0, 2.0, 3.0, 1.0 + } + } +}; +GLUnurbsObj *theNurbs; + + +static void CALLBACK ErrorCallback(GLenum which) +{ + + if (which != expectedError) { + fprintf(stderr, "Unexpected error occured (%d):\n", which); + fprintf(stderr, " %s\n", (char *) gluErrorString(which)); + } +} + +typedef void (GLAPIENTRY *callback_t)(); + +static void Init(void) +{ + + theNurbs = gluNewNurbsRenderer(); + gluNurbsCallback(theNurbs, GLU_ERROR, (callback_t) ErrorCallback); + + gluNurbsProperty(theNurbs, GLU_SAMPLING_TOLERANCE, 15.0); + gluNurbsProperty(theNurbs, GLU_DISPLAY_MODE, GLU_OUTLINE_PATCH); + + expectedError = GLU_INVALID_ENUM; + gluNurbsProperty(theNurbs, ~0, 15.0); + expectedError = GLU_NURBS_ERROR13; + gluEndSurface(theNurbs); + expectedError = 0; + + glColor3f(1.0, 1.0, 1.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustum(-2.0, 2.0, -2.0, 2.0, 0.8, 10.0); + gluLookAt(7.0, 4.5, 4.0, 4.5, 4.5, 2.5, 6.0, -3.0, 2.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key2(int key, int x, int y) +{ + + switch (key) { + case GLUT_KEY_DOWN: + rotX -= 5; + break; + case GLUT_KEY_UP: + rotX += 5; + break; + case GLUT_KEY_LEFT: + rotY -= 5; + break; + case GLUT_KEY_RIGHT: + rotY += 5; + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + } +} + +static void Draw(void) +{ + + glClear(GL_COLOR_BUFFER_BIT); + + glPushMatrix(); + + glTranslatef(4.0, 4.5, 2.5); + glRotatef(rotY, 1, 0, 0); + glRotatef(rotX, 0, 1, 0); + glTranslatef(-4.0, -4.5, -2.5); + + gluBeginSurface(theNurbs); + gluNurbsSurface(theNurbs, S_NUMKNOTS, sknots, T_NUMKNOTS, tknots, + 4*T_NUMPOINTS, 4, &ctlpoints[0][0][0], S_ORDER, + T_ORDER, GL_MAP2_VERTEX_4); + gluEndSurface(theNurbs); + + glPopMatrix(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("NURBS Test") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutSpecialFunc(Key2); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/oglinfo.c b/progs/samples/oglinfo.c new file mode 100644 index 00000000000..4fe51efb3cb --- /dev/null +++ b/progs/samples/oglinfo.c @@ -0,0 +1,218 @@ +/* oglinfo.c */ + +/* This demo modified by BrianP to accomodate Mesa and test + * the GLX 1.1 functions. + */ + + + +#include <GL/gl.h> +#include <GL/glx.h> +#include <GL/glu.h> +#include <stdio.h> +#include <string.h> + +int visual_request0[] = { None }; /* don't need much of a visual */ +int visual_request1[] = { GLX_RGBA, None }; /* in case CI failed */ + +int main(int argc, char **argv) +{ + char *display_name = NULL; + char *string; + Display *dpy; + int screen_num; + int major, minor; + XVisualInfo *vis; + GLXContext ctx; + Window root, win; + Colormap cmap; + XSetWindowAttributes swa; + int dontcare; + + /* parse arguments */ + if(argc > 1) { + if(!strcmp(argv[1],"-display")) + display_name = argv[2]; + else { + fprintf(stderr, "Usage: %s [-display <display>]\n",argv[0]); + return 0; + } + } + + /* get display */ + if (!(dpy = XOpenDisplay(display_name))) { + fprintf(stderr,"Error: XOpenDisplay() failed.\n"); + return 1; + } + + /* does the server know about OpenGL & GLX? */ +#ifndef MESA + if(!XQueryExtension(dpy, "GLX", &dontcare, &dontcare, &dontcare)) { + fprintf(stderr,"This system doesn't appear to support OpenGL\n"); + return 1; + } +#else + (void) dontcare; +#endif + + /* find the glx version */ + if(glXQueryVersion(dpy, &major, &minor)) + printf("GLX Version: %d.%d\n", major, minor); + else { + fprintf(stderr, "Error: glXQueryVersion() failed.\n"); + return 1; + } + + /* get screen number */ + screen_num = DefaultScreen(dpy); + +/* This #ifdef isn't redundant. It keeps the build from breaking +** if you are building on a machine that has an old (1.0) version +** of glx. +** +** This program could still be *run* on a machine that has an old +** version of glx, even if it was *compiled* on a version that has +** a new version. +** +** If compiled on a system with an old version of glx, then it will +** never recognize glx extensions, since that code would have been +** #ifdef'ed out. +*/ +#ifdef GLX_VERSION_1_1 + + /* + ** This test guarantees that glx, on the display you are inquiring, + ** suppports glXQueryExtensionsString(). + */ + if(minor > 0 || major > 1) + string = (char *) glXQueryExtensionsString(dpy, screen_num); + else + string = ""; + + if(string) + printf("GLX Extensions (client & server): %s\n", + string); + else { + fprintf(stderr, "Error: glXQueryExtensionsString() failed.\n"); + return 1; + } + + if (minor>0 || major>1) { + printf("glXGetClientString(GLX_VENDOR): %s\n", glXGetClientString(dpy,GLX_VENDOR)); + printf("glXGetClientString(GLX_VERSION): %s\n", glXGetClientString(dpy,GLX_VERSION)); + printf("glXGetClientString(GLX_EXTENSIONS): %s\n", glXGetClientString(dpy,GLX_EXTENSIONS)); + printf("glXQueryServerString(GLX_VENDOR): %s\n", glXQueryServerString(dpy,screen_num,GLX_VENDOR)); + printf("glXQueryServerString(GLX_VERSION): %s\n", glXQueryServerString(dpy,screen_num,GLX_VERSION)); + printf("glXQueryServerString(GLX_EXTENSIONS): %s\n", glXQueryServerString(dpy,screen_num,GLX_EXTENSIONS)); + } + + +#endif + + /* get any valid OpenGL visual */ + if (!(vis = glXChooseVisual(dpy, screen_num, visual_request0))) { + if (!(vis = glXChooseVisual(dpy, screen_num, visual_request1))) { + fprintf(stderr,"Error: glXChooseVisual() failed.\n"); + return 1; + } + } + + /* get context */ + ctx = glXCreateContext(dpy,vis,0,GL_TRUE); + + /* root window */ + root = RootWindow(dpy,vis->screen); + + /* get RGBA colormap */ + cmap = XCreateColormap(dpy, root, vis->visual, AllocNone); + + /* get window */ + swa.colormap = cmap; + swa.border_pixel = 0; + swa.event_mask = StructureNotifyMask; + win = XCreateWindow(dpy, root, 0, 0, 1, 1, 0, vis->depth, + InputOutput,vis->visual, + CWBorderPixel|CWColormap|CWEventMask, + &swa); + + glXMakeCurrent(dpy,win,ctx); + + string = (char *) glGetString(GL_VERSION); + if(string) +#ifdef MESA + printf("Mesa Version: %s\n", string); +#else + printf("OpenGL Version: %s\n", string); +#endif + else { + fprintf(stderr, "Error: glGetString(GL_VERSION) failed.\n"); + return 1; + } + + string = (char *) glGetString(GL_EXTENSIONS); + + if(string) +#ifdef MESA + printf("Mesa Extensions: %s\n", string); +#else + printf("OpenGL Extensions: %s\n", string); +#endif + else { + fprintf(stderr, "Error: glGetString(GL_EXTENSIONS) failed.\n"); + return 1; + } + + string = (char *) glGetString(GL_RENDERER); + + if(string) +#ifdef MESA + printf("Mesa Renderer: %s\n", string); +#else + printf("OpenGL renderer: %s\n", string); +#endif + else { + fprintf(stderr, "Error: glGetString(GL_RENDERER) failed.\n"); + return 1; + } + +/* +** This #ifdef prevents a build failure if you compile on an a +** machine with an old GLU library. +** +** If you build on a pre GLU 1.1 machine, you will never be able +** to get glu info, even if you run on a GLU 1.1 or latter machine, +** since the code has been #ifdef'ed out. +*/ +#ifdef GLU_VERSION_1_1 + + /* + ** If the glx version is 1.1 or latter, gluGetString() is guaranteed + ** to exist. + */ + if(minor > 0 || major > 1) + string = (char *) gluGetString(GLU_VERSION); + else + string = "1.0"; + + if(string) + printf("GLU Version: %s\n", string); + else { + fprintf(stderr, "Error: gluGetString(GLU_VERSION) failed.\n"); + return 1; + } + + if(minor > 0 || major > 1) + string = (char *) gluGetString(GLU_EXTENSIONS); + else + string = ""; + + if(string) + printf("GLU Extensions: %s\n", string); + else { + fprintf(stderr, "Error: gluGetString(GLU_EXTENSIONS) failed.\n"); + return 1; + } + +#endif + return 0; +} diff --git a/progs/samples/olympic.c b/progs/samples/olympic.c new file mode 100644 index 00000000000..5385e487026 --- /dev/null +++ b/progs/samples/olympic.c @@ -0,0 +1,389 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * Nov 20, 1995 use stdlib's rand()/srand() instead of random()/srand48(), etc. + */ + +/* + * Modified by Li Wei([email protected]) to be able to run in Windows + * 6/13 + * + * Modified by Brian Paul to compile with Windows OR Unix. 7/23/97 + */ + + +#define _HPUX_SOURCE + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> +#include <GL/glut.h> + +#ifndef RAND_MAX +# define RAND_MAX 32767 +#endif + + +#define XSIZE 100 +#define YSIZE 75 + +#define RINGS 5 +#define BLUERING 0 +#define BLACKRING 1 +#define REDRING 2 +#define YELLOWRING 3 +#define GREENRING 4 + +#define BACKGROUND 8 + + +GLenum rgb, doubleBuffer; + +#include "tkmap.c" + +unsigned char rgb_colors[RINGS][3]; +int mapped_colors[RINGS]; +float dests[RINGS][3]; +float offsets[RINGS][3]; +float angs[RINGS]; +float rotAxis[RINGS][3]; +int iters[RINGS]; +GLuint theTorus; + + +void FillTorus(float rc, int numc, float rt, int numt) +{ + int i, j, k; + double s, t; + double x, y, z; + double pi, twopi; + + pi = 3.14159265358979323846; + twopi = 2 * pi; + + for (i = 0; i < numc; i++) { + glBegin(GL_QUAD_STRIP); + for (j = 0; j <= numt; j++) { + for (k = 1; k >= 0; k--) { + s = (i + k) % numc + 0.5; + t = j % numt; + + x = cos(t*twopi/numt) * cos(s*twopi/numc); + y = sin(t*twopi/numt) * cos(s*twopi/numc); + z = sin(s*twopi/numc); + glNormal3f(x, y, z); + + x = (rt + rc * cos(s*twopi/numc)) * cos(t*twopi/numt); + y = (rt + rc * cos(s*twopi/numc)) * sin(t*twopi/numt); + z = rc * sin(s*twopi/numc); + glVertex3f(x, y, z); + } + } + glEnd(); + } +} + +float Clamp(int iters_left, float t) +{ + if (iters_left < 3) { + return 0.0; + } + return (iters_left-2)*t/iters_left; +} + +void DrawScene(void) +{ + int i, j; + GLboolean goIdle; + static double t0 = -1.; + double t, dt; + t = glutGet(GLUT_ELAPSED_TIME) / 1000.; + if (t0 < 0.) + t0 = t; + dt = t - t0; + + if (dt < 1./30.) + return; + + t0 = t; + + goIdle = GL_TRUE; + for (i = 0; i < RINGS; i++) { + if (iters[i]) { + for (j = 0; j < 3; j++) { + offsets[i][j] = Clamp(iters[i], offsets[i][j]); + } + angs[i] = Clamp(iters[i], angs[i]); + iters[i]--; + goIdle = GL_FALSE; + } + } + if (goIdle) { + glutIdleFunc(NULL); + } + + glPushMatrix(); + + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + gluLookAt(0,0,10, 0,0,0, 0,1,0); + + for (i = 0; i < RINGS; i++) { + if (rgb) { + glColor3ubv(rgb_colors[i]); + } else { + glIndexi(mapped_colors[i]); + } + glPushMatrix(); + glTranslatef(dests[i][0]+offsets[i][0], dests[i][1]+offsets[i][1], + dests[i][2]+offsets[i][2]); + glRotatef(angs[i], rotAxis[i][0], rotAxis[i][1], rotAxis[i][2]); + glCallList(theTorus); + glPopMatrix(); + } + + glPopMatrix(); + + glFlush(); + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +float MyRand(void) +{ + return 10.0 * ( (float) rand() / (float) RAND_MAX - 0.5 ); +} + +#if !defined(GLUTCALLBACK) +#define GLUTCALLBACK +#endif + +void GLUTCALLBACK glut_post_redisplay_p(void) +{ + glutPostRedisplay(); +} + +void ReInit(void) +{ + int i; + float deviation; + + deviation = MyRand() / 2; + deviation = deviation * deviation; + for (i = 0; i < RINGS; i++) { + offsets[i][0] = MyRand(); + offsets[i][1] = MyRand(); + offsets[i][2] = MyRand(); + angs[i] = 260.0 * MyRand(); + rotAxis[i][0] = MyRand(); + rotAxis[i][1] = MyRand(); + rotAxis[i][2] = MyRand(); + iters[i] = (deviation * MyRand() + 60.0); + } + glutIdleFunc(glut_post_redisplay_p); +} + +void Init(void) +{ + float base, height; + float aspect, x, y; + int i; + + float top_y = 1.0; + float bottom_y = 0.0; + float top_z = 0.15; + float bottom_z = 0.69; + float spacing = 2.5; + static float lmodel_ambient[] = {0.0, 0.0, 0.0, 0.0}; + static float lmodel_twoside[] = {GL_FALSE}; + static float lmodel_local[] = {GL_FALSE}; + static float light0_ambient[] = {0.1, 0.1, 0.1, 1.0}; + static float light0_diffuse[] = {1.0, 1.0, 1.0, 0.0}; + static float light0_position[] = {0.8660254, 0.5, 1, 0}; + static float light0_specular[] = {1.0, 1.0, 1.0, 0.0}; + static float bevel_mat_ambient[] = {0.0, 0.0, 0.0, 1.0}; + static float bevel_mat_shininess[] = {40.0}; + static float bevel_mat_specular[] = {1.0, 1.0, 1.0, 0.0}; + static float bevel_mat_diffuse[] = {1.0, 0.0, 0.0, 0.0}; + + srand( (unsigned int) glutGet(GLUT_ELAPSED_TIME) ); + + ReInit(); + for (i = 0; i < RINGS; i++) { + rgb_colors[i][0] = rgb_colors[i][1] = rgb_colors[i][2] = 0; + } + rgb_colors[BLUERING][2] = 255; + rgb_colors[REDRING][0] = 255; + rgb_colors[GREENRING][1] = 255; + rgb_colors[YELLOWRING][0] = 255; + rgb_colors[YELLOWRING][1] = 255; + mapped_colors[BLUERING] = COLOR_BLUE; + mapped_colors[REDRING] = COLOR_RED; + mapped_colors[GREENRING] = COLOR_GREEN; + mapped_colors[YELLOWRING] = COLOR_YELLOW; + mapped_colors[BLACKRING] = COLOR_BLACK; + + dests[BLUERING][0] = -spacing; + dests[BLUERING][1] = top_y; + dests[BLUERING][2] = top_z; + + dests[BLACKRING][0] = 0.0; + dests[BLACKRING][1] = top_y; + dests[BLACKRING][2] = top_z; + + dests[REDRING][0] = spacing; + dests[REDRING][1] = top_y; + dests[REDRING][2] = top_z; + + dests[YELLOWRING][0] = -spacing / 2.0; + dests[YELLOWRING][1] = bottom_y; + dests[YELLOWRING][2] = bottom_z; + + dests[GREENRING][0] = spacing / 2.0; + dests[GREENRING][1] = bottom_y; + dests[GREENRING][2] = bottom_z; + + base = 2.0; + height = 2.0; + theTorus = glGenLists(1); + glNewList(theTorus, GL_COMPILE); + FillTorus(0.1, 8, 1.0, 25); + glEndList(); + + x = (float)XSIZE; + y = (float)YSIZE; + aspect = x / y; + glEnable(GL_CULL_FACE); + glCullFace(GL_BACK); + glEnable(GL_DEPTH_TEST); + glClearDepth(1.0); + + if (rgb) { + glClearColor(0.5, 0.5, 0.5, 0.0); + glLightfv(GL_LIGHT0, GL_AMBIENT, light0_ambient); + glLightfv(GL_LIGHT0, GL_DIFFUSE, light0_diffuse); + glLightfv(GL_LIGHT0, GL_SPECULAR, light0_specular); + glLightfv(GL_LIGHT0, GL_POSITION, light0_position); + glEnable(GL_LIGHT0); + + glLightModelfv(GL_LIGHT_MODEL_LOCAL_VIEWER, lmodel_local); + glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside); + glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient); + glEnable(GL_LIGHTING); + + glMaterialfv(GL_FRONT, GL_AMBIENT, bevel_mat_ambient); + glMaterialfv(GL_FRONT, GL_SHININESS, bevel_mat_shininess); + glMaterialfv(GL_FRONT, GL_SPECULAR, bevel_mat_specular); + glMaterialfv(GL_FRONT, GL_DIFFUSE, bevel_mat_diffuse); + + glColorMaterial(GL_FRONT_AND_BACK, GL_DIFFUSE); + glEnable(GL_COLOR_MATERIAL); + glShadeModel(GL_SMOOTH); + } else { + glClearIndex(BACKGROUND); + glShadeModel(GL_FLAT); + } + + glMatrixMode(GL_PROJECTION); + gluPerspective(45, 1.33, 0.1, 100.0); + glMatrixMode(GL_MODELVIEW); +} + +void Reshape(int width, int height) +{ + + glViewport(0, 0, width, height); +} + +void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case 32: + ReInit(); + break; + } +} + +GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_TRUE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 400, 300); + + type = GLUT_DEPTH; + type |= (rgb) ? GLUT_RGB : GLUT_INDEX; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Olympic") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(DrawScene); + glutIdleFunc(glut_post_redisplay_p); + + glutMainLoop(); + return 0; +} diff --git a/progs/samples/overlay.c b/progs/samples/overlay.c new file mode 100644 index 00000000000..23b5a4793ba --- /dev/null +++ b/progs/samples/overlay.c @@ -0,0 +1,378 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <math.h> +#include <time.h> +#include <GL/glut.h> + + +#ifndef PI +#define PI 3.141592657 +#endif + + +enum { + NORMAL = 0, + WEIRD = 1 +}; + +enum { + STREAK = 0, + CIRCLE = 1 +}; + +#define MAXSTARS 400 +#define MAXPOS 10000 +#define MAXWARP 10 +#define MAXANGLES 6000 + + +typedef struct _starRec { + GLint type; + float x[2], y[2], z[2]; + float offsetX, offsetY, offsetR, rotation; +} starRec; + + +GLenum doubleBuffer; +GLint windW, windH; + +GLenum flag = NORMAL, overlayInit = GL_FALSE; +GLint starCount = MAXSTARS / 2; +float speed = 1.0; +GLint nitro = 0; +starRec stars[MAXSTARS]; +float sinTable[MAXANGLES]; + + +float Sin(float angle) +{ + + return (sinTable[(GLint)angle]); +} + +float Cos(float angle) +{ + + return (sinTable[((GLint)angle+(MAXANGLES/4))%MAXANGLES]); +} + +void NewStar(GLint n, GLint d) +{ + + if (rand()%4 == 0) { + stars[n].type = CIRCLE; + } else { + stars[n].type = STREAK; + } + stars[n].x[0] = (float)(rand() % MAXPOS - MAXPOS / 2); + stars[n].y[0] = (float)(rand() % MAXPOS - MAXPOS / 2); + stars[n].z[0] = (float)(rand() % MAXPOS + d); + if (rand()%4 == 0 && flag == WEIRD) { + stars[n].offsetX = (float)(rand() % 100 - 100 / 2); + stars[n].offsetY = (float)(rand() % 100 - 100 / 2); + stars[n].offsetR = (float)(rand() % 25 - 25 / 2); + } else { + stars[n].offsetX = 0.0; + stars[n].offsetY = 0.0; + stars[n].offsetR = 0.0; + } +} + +void RotatePoint(float *x, float *y, float rotation) +{ + float tmpX, tmpY; + + tmpX = *x * Cos(rotation) - *y * Sin(rotation); + tmpY = *y * Cos(rotation) + *x * Sin(rotation); + *x = tmpX; + *y = tmpY; +} + +void MoveStars(void) +{ + float offset; + GLint n; + + offset = speed * 60.0; + + for (n = 0; n < starCount; n++) { + stars[n].x[1] = stars[n].x[0]; + stars[n].y[1] = stars[n].y[0]; + stars[n].z[1] = stars[n].z[0]; + stars[n].x[0] += stars[n].offsetX; + stars[n].y[0] += stars[n].offsetY; + stars[n].z[0] -= offset; + stars[n].rotation += stars[n].offsetR; + if (stars[n].rotation > MAXANGLES) { + stars[n].rotation = 0.0; + } + } +} + +GLenum StarPoint(GLint n) +{ + float x0, y0, x1, y1, width; + GLint i; + + x0 = stars[n].x[0] * windW / stars[n].z[0]; + y0 = stars[n].y[0] * windH / stars[n].z[0]; + RotatePoint(&x0, &y0, stars[n].rotation); + x0 += windW / 2.0; + y0 += windH / 2.0; + + if (x0 >= 0.0 && x0 < windW && y0 >= 0.0 && y0 < windH) { + if (stars[n].type == STREAK) { + x1 = stars[n].x[1] * windW / stars[n].z[1]; + y1 = stars[n].y[1] * windH / stars[n].z[1]; + RotatePoint(&x1, &y1, stars[n].rotation); + x1 += windW / 2.0; + y1 += windH / 2.0; + + glLineWidth(MAXPOS/100.0/stars[n].z[0]+1.0); + glColor3f(1.0, (MAXWARP-speed)/MAXWARP, (MAXWARP-speed)/MAXWARP); + if (fabs(x0-x1) < 1.0 && fabs(y0-y1) < 1.0) { + glBegin(GL_POINTS); + glVertex2f(x0, y0); + glEnd(); + } else { + glBegin(GL_LINES); + glVertex2f(x0, y0); + glVertex2f(x1, y1); + glEnd(); + } + } else { + width = MAXPOS / 10.0 / stars[n].z[0] + 1.0; + glColor3f(1.0, 0.0, 0.0); + glBegin(GL_POLYGON); + for (i = 0; i < 8; i++) { + float x = x0 + width * Cos((float)i*MAXANGLES/8.0); + float y = y0 + width * Sin((float)i*MAXANGLES/8.0); + glVertex2f(x, y); + }; + glEnd(); + } + return GL_TRUE; + } else { + return GL_FALSE; + } +} + +void ShowStars(void) +{ + GLint n; + + glClear(GL_COLOR_BUFFER_BIT); + + for (n = 0; n < starCount; n++) { + if (stars[n].z[0] > speed || (stars[n].z[0] > 0.0 && speed < MAXWARP)) { + if (StarPoint(n) == GL_FALSE) { + NewStar(n, MAXPOS); + } + } else { + NewStar(n, MAXPOS); + } + } +} + +static void Init(void) +{ + float angle; + GLint n; + + srand((unsigned int)time(NULL)); + + for (n = 0; n < MAXSTARS; n++) { + NewStar(n, 100); + } + + angle = 0.0; + for (n = 0; n < MAXANGLES ; n++) { + sinTable[n] = sin(angle); + angle += PI / (MAXANGLES / 2.0); + } + + glClearColor(0.0, 0.0, 0.0, 0.0); + + glDisable(GL_DITHER); +} + +void Reshape(int width, int height) +{ + + windW = (GLint)width; + windH = (GLint)height; + + glutUseLayer(GLUT_OVERLAY); + + glViewport(0, 0, windW, windH); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(-0.5, windW+0.5, -0.5, windH+0.5); + glMatrixMode(GL_MODELVIEW); + overlayInit = GL_FALSE; + + glutUseLayer(GLUT_NORMAL); + + glViewport(0, 0, windW, windH); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(-0.5, windW+0.5, -0.5, windH+0.5); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case 32: + flag = (flag == NORMAL) ? WEIRD : NORMAL; + break; + case 't': + nitro = 1; + break; + default: + return; + } +} + +void Idle(void) +{ + + if (overlayInit == GL_FALSE) { + glutUseLayer(GLUT_OVERLAY); + glClear(GL_COLOR_BUFFER_BIT); +/* glColor3f(1.0, 0.0, 0.0);*/ + + glIndexf( 2.0 ); + glBegin(GL_POLYGON); + glVertex2i(windW/4-10, windH/4-10); + glVertex2i(windW/2-10, windH/4-10); + glVertex2i(windW/2-10, windH/2-10); + glVertex2i(windW/4-10, windH/2-10); + glEnd(); + + glIndexf( 0.0 ); + glBegin(GL_POLYGON); + glVertex2i(windW/4, windH/4); + glVertex2i(windW/2, windH/4); + glVertex2i(windW/2, windH/2); + glVertex2i(windW/4, windH/2); + glEnd(); + + glIndexf( 1.0 ); + glBegin(GL_POLYGON); + glVertex2i(windW/4+10, windH/4+10); + glVertex2i(windW/2+10, windH/4+10); + glVertex2i(windW/2+10, windH/2+10); + glVertex2i(windW/4+10, windH/2+10); + glEnd(); + + glutUseLayer(GLUT_NORMAL); + overlayInit = GL_TRUE; + } + + MoveStars(); + ShowStars(); + if (nitro > 0) { + speed = (float)(nitro / 10) + 1.0; + if (speed > MAXWARP) { + speed = MAXWARP; + } + if (++nitro > MAXWARP*10) { + nitro = -nitro; + } + } else if (nitro < 0) { + nitro++; + speed = (float)(-nitro / 10) + 1.0; + if (speed > MAXWARP) { + speed = MAXWARP; + } + } + + glFlush(); + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_TRUE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (!glutLayerGet(GLUT_OVERLAY_POSSIBLE)) + { + fprintf(stderr, "Overlay not available\n"); + return(1); + } + + if (Args(argc, argv) == GL_FALSE) { + return(1); + } + + windW = 300; + windH = 300; + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Overlay Test") == GL_FALSE) { + return(1); + } + + glutEstablishOverlay(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutIdleFunc(Idle); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/point.c b/progs/samples/point.c new file mode 100644 index 00000000000..4cb6ad7d517 --- /dev/null +++ b/progs/samples/point.c @@ -0,0 +1,234 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_RED COLOR_RED +#define CI_ANTI_ALIAS_GREEN 16 +#define CI_ANTI_ALIAS_YELLOW 32 +#define CI_ANTI_ALIAS_RED 48 + + +GLenum rgb, doubleBuffer, windType; +GLint windW, windH; + +#include "tkmap.c" + +GLenum mode; +GLint size; +float point[3] = { + 1.0, 1.0, 0.0 +}; + + +static void Init(void) +{ + GLint i; + + glClearColor(0.0, 0.0, 0.0, 0.0); + + glBlendFunc(GL_SRC_ALPHA, GL_ZERO); + + if (!rgb) { + for (i = 0; i < 16; i++) { + glutSetColor(i+CI_ANTI_ALIAS_RED, i/15.0, 0.0, 0.0); + glutSetColor(i+CI_ANTI_ALIAS_YELLOW, i/15.0, i/15.0, 0.0); + glutSetColor(i+CI_ANTI_ALIAS_GREEN, 0.0, i/15.0, 0.0); + } + } + + mode = GL_FALSE; + size = 1; +} + +static void Reshape(int width, int height) +{ + + windW = (GLint)width; + windH = (GLint)height; + + glViewport(0, 0, width, height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(-windW/2, windW/2, -windH/2, windH/2); + glMatrixMode(GL_MODELVIEW); +} + +static void Key2(int key, int x, int y) +{ + + switch (key) { + case GLUT_KEY_LEFT: + point[0] -= 0.25; + break; + case GLUT_KEY_RIGHT: + point[0] += 0.25; + break; + case GLUT_KEY_UP: + point[1] += 0.25; + break; + case GLUT_KEY_DOWN: + point[1] -= 0.25; + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case '1': + mode = !mode; + break; + case 'W': + size++; + break; + case 'w': + size--; + if (size < 1) { + size = 1; + } + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + + glClear(GL_COLOR_BUFFER_BIT); + + SetColor(COLOR_YELLOW); + glBegin(GL_LINE_STRIP); + glVertex2f(-windW/2, 0); + glVertex2f(windW/2, 0); + glEnd(); + glBegin(GL_LINE_STRIP); + glVertex2f(0, -windH/2); + glVertex2f(0, windH/2); + glEnd(); + + if (mode) { + glEnable(GL_BLEND); + glEnable(GL_POINT_SMOOTH); + } else { + glDisable(GL_BLEND); + glDisable(GL_POINT_SMOOTH); + } + + glPointSize(size); + if (mode) { + (rgb) ? glColor3f(1.0, 0.0, 0.0) : glIndexf(CI_ANTI_ALIAS_RED); + } else { + (rgb) ? glColor3f(1.0, 0.0, 0.0) : glIndexf(CI_RED); + } + glBegin(GL_POINTS); + glVertex3fv(point); + glEnd(); + + glDisable(GL_POINT_SMOOTH); + glDisable(GL_BLEND); + + glPointSize(1); + SetColor(COLOR_GREEN); + glBegin(GL_POINTS); + glVertex3fv(point); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + windW = 300; + windH = 300; + glutInitWindowPosition(0, 0); glutInitWindowSize( windW, windH); + + windType = (rgb) ? GLUT_RGB : GLUT_INDEX; + windType |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(windType); + + if (glutCreateWindow("Point Test") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutSpecialFunc(Key2); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/prim.c b/progs/samples/prim.c new file mode 100644 index 00000000000..388e0153b4f --- /dev/null +++ b/progs/samples/prim.c @@ -0,0 +1,546 @@ +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define PIXEL_CENTER(x) ((long)(x) + 0.5) + +#define GAP 10 +#define ROWS 3 +#define COLS 4 + +#define OPENGL_WIDTH 48 +#define OPENGL_HEIGHT 13 + + +GLenum rgb, doubleBuffer, windType; +GLint windW, windH; + +GLenum mode1, mode2; +GLint boxW, boxH; +GLubyte OpenGL_bits[] = { + 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, + 0x7f, 0xfb, 0xff, 0xff, 0xff, 0x01, + 0x7f, 0xfb, 0xff, 0xff, 0xff, 0x01, + 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, + 0x3e, 0x8f, 0xb7, 0xf9, 0xfc, 0x01, + 0x63, 0xdb, 0xb0, 0x8d, 0x0d, 0x00, + 0x63, 0xdb, 0xb7, 0x8d, 0x0d, 0x00, + 0x63, 0xdb, 0xb6, 0x8d, 0x0d, 0x00, + 0x63, 0x8f, 0xf3, 0xcc, 0x0d, 0x00, + 0x63, 0x00, 0x00, 0x0c, 0x4c, 0x0a, + 0x63, 0x00, 0x00, 0x0c, 0x4c, 0x0e, + 0x63, 0x00, 0x00, 0x8c, 0xed, 0x0e, + 0x3e, 0x00, 0x00, 0xf8, 0x0c, 0x00, +}; + + +#include "tkmap.c" + +static void Init(void) +{ + + mode1 = GL_TRUE; + mode2 = GL_TRUE; +} + +static void Reshape(int width, int height) +{ + + windW = (GLint)width; + windH = (GLint)height; +} + +static void RotateColorMask(void) +{ + static GLint rotation = 0; + + rotation = (rotation + 1) & 0x3; + switch (rotation) { + case 0: + glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); + glIndexMask( 0xff ); + break; + case 1: + glColorMask(GL_FALSE, GL_TRUE, GL_TRUE, GL_TRUE); + glIndexMask(0xFE); + break; + case 2: + glColorMask(GL_TRUE, GL_FALSE, GL_TRUE, GL_TRUE); + glIndexMask(0xFD); + break; + case 3: + glColorMask(GL_TRUE, GL_TRUE, GL_FALSE, GL_TRUE); + glIndexMask(0xFB); + break; + } +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case '1': + mode1 = !mode1; + break; + case '2': + mode2 = !mode2; + break; + case '3': + RotateColorMask(); + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Viewport(GLint row, GLint column) +{ + GLint x, y; + + boxW = (windW - (COLS + 1) * GAP) / COLS; + boxH = (windH - (ROWS + 1) * GAP) / ROWS; + + x = GAP + column * (boxW + GAP); + y = GAP + row * (boxH + GAP); + + glViewport(x, y, boxW, boxH); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-boxW/2, boxW/2, -boxH/2, boxH/2, 0.0, 1.0); + glMatrixMode(GL_MODELVIEW); + + glEnable(GL_SCISSOR_TEST); + glScissor(x, y, boxW, boxH); +} + +static void Point(void) +{ + GLint i; + + glBegin(GL_POINTS); + SetColor(COLOR_WHITE); + glVertex2i(0, 0); + for (i = 1; i < 8; i++) { + GLint j = i * 2; + SetColor(COLOR_BLACK+i); + glVertex2i(-j, -j); + glVertex2i(-j, 0); + glVertex2i(-j, j); + glVertex2i(0, j); + glVertex2i(j, j); + glVertex2i(j, 0); + glVertex2i(j, -j); + glVertex2i(0, -j); + } + glEnd(); +} + +static void Lines(void) +{ + GLint i; + + glPushMatrix(); + + glTranslatef(-12, 0, 0); + for (i = 1; i < 8; i++) { + SetColor(COLOR_BLACK+i); + glBegin(GL_LINES); + glVertex2i(-boxW/4, -boxH/4); + glVertex2i(boxW/4, boxH/4); + glEnd(); + glTranslatef(4, 0, 0); + } + + glPopMatrix(); + + glBegin(GL_LINES); + glVertex2i(0, 0); + glEnd(); +} + +static void LineStrip(void) +{ + + glBegin(GL_LINE_STRIP); + SetColor(COLOR_RED); + glVertex2f(PIXEL_CENTER(-boxW/4), PIXEL_CENTER(-boxH/4)); + SetColor(COLOR_GREEN); + glVertex2f(PIXEL_CENTER(-boxW/4), PIXEL_CENTER(boxH/4)); + SetColor(COLOR_BLUE); + glVertex2f(PIXEL_CENTER(boxW/4), PIXEL_CENTER(boxH/4)); + SetColor(COLOR_WHITE); + glVertex2f(PIXEL_CENTER(boxW/4), PIXEL_CENTER(-boxH/4)); + glEnd(); + + glBegin(GL_LINE_STRIP); + glVertex2i(0, 0); + glEnd(); +} + +static void LineLoop(void) +{ + + glBegin(GL_LINE_LOOP); + SetColor(COLOR_RED); + glVertex2f(PIXEL_CENTER(-boxW/4), PIXEL_CENTER(-boxH/4)); + SetColor(COLOR_GREEN); + glVertex2f(PIXEL_CENTER(-boxW/4), PIXEL_CENTER(boxH/4)); + SetColor(COLOR_BLUE); + glVertex2f(PIXEL_CENTER(boxW/4), PIXEL_CENTER(boxH/4)); + SetColor(COLOR_WHITE); + glVertex2f(PIXEL_CENTER(boxW/4), PIXEL_CENTER(-boxH/4)); + glEnd(); + + glEnable(GL_LOGIC_OP); + glLogicOp(GL_XOR); + + glEnable(GL_BLEND); + glBlendFunc(GL_ONE, GL_ONE); + + SetColor(COLOR_MAGENTA); + glBegin(GL_LINE_LOOP); + glVertex2f(PIXEL_CENTER(-boxW/8), PIXEL_CENTER(-boxH/8)); + glVertex2f(PIXEL_CENTER(-boxW/8), PIXEL_CENTER(boxH/8)); + glEnd(); + glBegin(GL_LINE_LOOP); + glVertex2f(PIXEL_CENTER(-boxW/8), PIXEL_CENTER(boxH/8+5)); + glVertex2f(PIXEL_CENTER(boxW/8), PIXEL_CENTER(boxH/8+5)); + glEnd(); + glDisable(GL_LOGIC_OP); + glDisable(GL_BLEND); + + SetColor(COLOR_GREEN); + glBegin(GL_POINTS); + glVertex2i(0, 0); + glEnd(); + + glBegin(GL_LINE_LOOP); + glVertex2i(0, 0); + glEnd(); +} + +static void Bitmap(void) +{ + + glBegin(GL_LINES); + SetColor(COLOR_GREEN); + glVertex2i(-boxW/2, 0); + glVertex2i(boxW/2, 0); + glVertex2i(0, -boxH/2); + glVertex2i(0, boxH/2); + SetColor(COLOR_RED); + glVertex2i(0, -3); + glVertex2i(0, -3+OPENGL_HEIGHT); + SetColor(COLOR_BLUE); + glVertex2i(0, -3); + glVertex2i(OPENGL_WIDTH, -3); + glEnd(); + + SetColor(COLOR_GREEN); + + glPixelStorei(GL_UNPACK_LSB_FIRST, GL_TRUE); + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + + glRasterPos2i(0, 0); + glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, 0, 3, 0.0, 0.0, OpenGL_bits); +} + +static void Triangles(void) +{ + + glBegin(GL_TRIANGLES); + SetColor(COLOR_GREEN); + glVertex2i(-boxW/4, -boxH/4); + SetColor(COLOR_RED); + glVertex2i(-boxW/8, -boxH/16); + SetColor(COLOR_BLUE); + glVertex2i(boxW/8, -boxH/16); + + SetColor(COLOR_GREEN); + glVertex2i(-boxW/4, boxH/4); + SetColor(COLOR_RED); + glVertex2i(-boxW/8, boxH/16); + SetColor(COLOR_BLUE); + glVertex2i(boxW/8, boxH/16); + glEnd(); + + glBegin(GL_TRIANGLES); + glVertex2i(0, 0); + glVertex2i(-100, 100); + glEnd(); +} + +static void TriangleStrip(void) +{ + + glBegin(GL_TRIANGLE_STRIP); + SetColor(COLOR_GREEN); + glVertex2i(-boxW/4, -boxH/4); + SetColor(COLOR_RED); + glVertex2i(-boxW/4, boxH/4); + SetColor(COLOR_BLUE); + glVertex2i(0, -boxH/4); + SetColor(COLOR_WHITE); + glVertex2i(0, boxH/4); + SetColor(COLOR_CYAN); + glVertex2i(boxW/4, -boxH/4); + SetColor(COLOR_YELLOW); + glVertex2i(boxW/4, boxH/4); + glEnd(); + + glBegin(GL_TRIANGLE_STRIP); + glVertex2i(0, 0); + glVertex2i(-100, 100); + glEnd(); +} + +static void TriangleFan(void) +{ + GLint vx[8][2]; + GLint x0, y0, x1, y1, x2, y2, x3, y3; + GLint i; + + y0 = -boxH/4; + y1 = y0 + boxH/2/3; + y2 = y1 + boxH/2/3; + y3 = boxH/4; + x0 = -boxW/4; + x1 = x0 + boxW/2/3; + x2 = x1 + boxW/2/3; + x3 = boxW/4; + + vx[0][0] = x0; vx[0][1] = y1; + vx[1][0] = x0; vx[1][1] = y2; + vx[2][0] = x1; vx[2][1] = y3; + vx[3][0] = x2; vx[3][1] = y3; + vx[4][0] = x3; vx[4][1] = y2; + vx[5][0] = x3; vx[5][1] = y1; + vx[6][0] = x2; vx[6][1] = y0; + vx[7][0] = x1; vx[7][1] = y0; + + glBegin(GL_TRIANGLE_FAN); + SetColor(COLOR_WHITE); + glVertex2i(0, 0); + for (i = 0; i < 8; i++) { + SetColor(COLOR_WHITE-i); + glVertex2iv(vx[i]); + } + glEnd(); + + glBegin(GL_TRIANGLE_FAN); + glVertex2i(0, 0); + glVertex2i(-100, 100); + glEnd(); +} + +static void Rect(void) +{ + + SetColor(COLOR_GREEN); + glRecti(-boxW/4, -boxH/4, boxW/4, boxH/4); +} + +static void PolygonFunc(void) +{ + GLint vx[8][2]; + GLint x0, y0, x1, y1, x2, y2, x3, y3; + GLint i; + + y0 = -boxH/4; + y1 = y0 + boxH/2/3; + y2 = y1 + boxH/2/3; + y3 = boxH/4; + x0 = -boxW/4; + x1 = x0 + boxW/2/3; + x2 = x1 + boxW/2/3; + x3 = boxW/4; + + vx[0][0] = x0; vx[0][1] = y1; + vx[1][0] = x0; vx[1][1] = y2; + vx[2][0] = x1; vx[2][1] = y3; + vx[3][0] = x2; vx[3][1] = y3; + vx[4][0] = x3; vx[4][1] = y2; + vx[5][0] = x3; vx[5][1] = y1; + vx[6][0] = x2; vx[6][1] = y0; + vx[7][0] = x1; vx[7][1] = y0; + + glBegin(GL_POLYGON); + for (i = 0; i < 8; i++) { + SetColor(COLOR_WHITE-i); + glVertex2iv(vx[i]); + } + glEnd(); + + glBegin(GL_POLYGON); + glVertex2i(0, 0); + glVertex2i(100, 100); + glEnd(); +} + +static void Quads(void) +{ + + glBegin(GL_QUADS); + SetColor(COLOR_GREEN); + glVertex2i(-boxW/4, -boxH/4); + SetColor(COLOR_RED); + glVertex2i(-boxW/8, -boxH/16); + SetColor(COLOR_BLUE); + glVertex2i(boxW/8, -boxH/16); + SetColor(COLOR_WHITE); + glVertex2i(boxW/4, -boxH/4); + + SetColor(COLOR_GREEN); + glVertex2i(-boxW/4, boxH/4); + SetColor(COLOR_RED); + glVertex2i(-boxW/8, boxH/16); + SetColor(COLOR_BLUE); + glVertex2i(boxW/8, boxH/16); + SetColor(COLOR_WHITE); + glVertex2i(boxW/4, boxH/4); + glEnd(); + + glBegin(GL_QUADS); + glVertex2i(0, 0); + glVertex2i(100, 100); + glVertex2i(-100, 100); + glEnd(); +} + +static void QuadStrip(void) +{ + + glBegin(GL_QUAD_STRIP); + SetColor(COLOR_GREEN); + glVertex2i(-boxW/4, -boxH/4); + SetColor(COLOR_RED); + glVertex2i(-boxW/4, boxH/4); + SetColor(COLOR_BLUE); + glVertex2i(0, -boxH/4); + SetColor(COLOR_WHITE); + glVertex2i(0, boxH/4); + SetColor(COLOR_CYAN); + glVertex2i(boxW/4, -boxH/4); + SetColor(COLOR_YELLOW); + glVertex2i(boxW/4, boxH/4); + glEnd(); + + glBegin(GL_QUAD_STRIP); + glVertex2i(0, 0); + glVertex2i(100, 100); + glVertex2i(-100, 100); + glEnd(); +} + +static void Draw(void) +{ + + glViewport(0, 0, windW, windH); + glDisable(GL_SCISSOR_TEST); + + glPushAttrib(GL_COLOR_BUFFER_BIT); + + glColorMask(1, 1, 1, 1); + glIndexMask(~0); + + glClearColor(0.0, 0.0, 0.0, 0.0); + glClear(GL_COLOR_BUFFER_BIT); + + glPopAttrib(); + + if (mode1) { + glShadeModel(GL_SMOOTH); + } else { + glShadeModel(GL_FLAT); + } + + if (mode2) { + glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); + } else { + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); + } + + Viewport(0, 0); Point(); + Viewport(0, 1); Lines(); + Viewport(0, 2); LineStrip(); + Viewport(0, 3); LineLoop(); + + Viewport(1, 0); Bitmap(); + + Viewport(1, 1); TriangleFan(); + Viewport(1, 2); Triangles(); + Viewport(1, 3); TriangleStrip(); + + Viewport(2, 0); Rect(); + Viewport(2, 1); PolygonFunc(); + Viewport(2, 2); Quads(); + Viewport(2, 3); QuadStrip(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + windW = 600; + windH = 300; + glutInitWindowPosition(0, 0); glutInitWindowSize( windW, windH); + + windType = (rgb) ? GLUT_RGB : GLUT_INDEX; + windType |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(windType); + + if (glutCreateWindow("Primitive Test") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/quad.c b/progs/samples/quad.c new file mode 100644 index 00000000000..193850abc45 --- /dev/null +++ b/progs/samples/quad.c @@ -0,0 +1,457 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#ifndef CALLBACK +#define CALLBACK +#endif + + +#define PI 3.141592654 +#define BLACK 0 +#define GRAY 128 +#define WHITE 255 +#define RD 0xA4,0x00,0x00,0xFF +#define WT 0xFF,0xFF,0xFF,0xFF +#define brickImageWidth 16 +#define brickImageHeight 16 + + +#include "loadppm.c" + +GLenum rgb, doubleBuffer; + +#include "tkmap.c" + +float black[3] = { + 0.0, 0.0, 0.0 +}; +float blue[3] = { + 0.0, 0.0, 1.0 +}; +float gray[3] = { + 0.5, 0.5, 0.5 +}; +float white[3] = { + 1.0, 1.0, 1.0 +}; + +GLenum doDither = GL_TRUE; +GLenum shade = GL_TRUE; +GLenum texture = GL_TRUE; + +float xRotation = 30.0, yRotation = 30.0, zRotation = 0.0; +GLint radius1, radius2; +GLdouble angle1, angle2; +GLint slices, stacks; +GLint height; +GLint orientation = GLU_OUTSIDE; +GLint whichQuadric=0; +GLUquadricObj *quadObj; + +GLubyte brickImage[4*brickImageWidth*brickImageHeight] = { + RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, + RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, + RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, + RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, + WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, + RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, + RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, + RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, + RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, + WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, + RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, + RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, + RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, + RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, + WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, + RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD +}; +char *texFileName = 0; + + +static void CALLBACK ErrorHandler(GLenum which) +{ + + fprintf(stderr, "Quad Error: %s\n", (char *) gluErrorString(which)); +} + +typedef void (GLAPIENTRY *callback_t)(); + +static void Init(void) +{ + static GLint colorIndexes[3] = {0, 200, 255}; + static float ambient[] = {0.1, 0.1, 0.1, 1.0}; + static float diffuse[] = {0.5, 1.0, 1.0, 1.0}; + static float position[] = {90.0, 90.0, 150.0, 0.0}; + static float front_mat_shininess[] = {30.0}; + static float front_mat_specular[] = {0.2, 0.2, 0.2, 1.0}; + static float front_mat_diffuse[] = {0.5, 0.28, 0.38, 1.0}; + static float back_mat_shininess[] = {50.0}; + static float back_mat_specular[] = {0.5, 0.5, 0.2, 1.0}; + static float back_mat_diffuse[] = {1.0, 1.0, 0.2, 1.0}; + static float lmodel_ambient[] = {1.0, 1.0, 1.0, 1.0}; + static float lmodel_twoside[] = {GL_TRUE}; + static float decal[] = {GL_DECAL}; + static float repeat[] = {GL_REPEAT}; + static float nearest[] = {GL_NEAREST}; + static PPMImage *image; + + if (!rgb) { + SetGreyRamp(); + } + glClearColor(0.0, 0.0, 0.0, 0.0); + + glEnable(GL_DEPTH_TEST); + + glLightfv(GL_LIGHT0, GL_AMBIENT, ambient); + glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse); + glLightfv(GL_LIGHT0, GL_POSITION, position); + glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient); + glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside); + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + + glMaterialfv(GL_FRONT, GL_SHININESS, front_mat_shininess); + glMaterialfv(GL_FRONT, GL_SPECULAR, front_mat_specular); + glMaterialfv(GL_FRONT, GL_DIFFUSE, front_mat_diffuse); + glMaterialfv(GL_BACK, GL_SHININESS, back_mat_shininess); + glMaterialfv(GL_BACK, GL_SPECULAR, back_mat_specular); + glMaterialfv(GL_BACK, GL_DIFFUSE, back_mat_diffuse); + if (!rgb) { + glMaterialiv( GL_FRONT_AND_BACK, GL_COLOR_INDEXES, colorIndexes); + } + + glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, decal); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, repeat); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, repeat); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, nearest); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, nearest); + if (texFileName) { + image = LoadPPM(texFileName); + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + gluBuild2DMipmaps(GL_TEXTURE_2D, 3, image->sizeX, image->sizeY, + GL_RGB, GL_UNSIGNED_BYTE, image->data); + } else { + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glTexImage2D(GL_TEXTURE_2D, 0, 4, brickImageWidth, brickImageHeight, + 0, GL_RGBA, GL_UNSIGNED_BYTE, (GLvoid *)brickImage); + } + + quadObj = gluNewQuadric(); + gluQuadricCallback(quadObj, GLU_ERROR, (callback_t) ErrorHandler); + + radius1 = 10; + radius2 = 5; + angle1 = 90; + angle2 = 180; + slices = 16; + stacks = 10; + height = 20; +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustum(-1, 1, -1, 1, 1, 10); + gluLookAt(2, 2, 2, 0, 0, 0, 0, 0, 1); + glMatrixMode(GL_MODELVIEW); +} + +static void Key2(int key, int x, int y) +{ + + switch (key) { + case GLUT_KEY_LEFT: + yRotation += 5; + break; + case GLUT_KEY_RIGHT: + yRotation -= 5; + break; + case GLUT_KEY_UP: + xRotation += 5; + break; + case GLUT_KEY_DOWN: + xRotation -= 5; + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + + case 'X': + zRotation += 5; + break; + case 'x': + zRotation -= 5; + break; + + case '1': + gluQuadricDrawStyle(quadObj, GLU_FILL); + break; + case '2': + gluQuadricDrawStyle(quadObj, GLU_POINT); + break; + case '3': + gluQuadricDrawStyle(quadObj, GLU_LINE); + break; + case '4': + gluQuadricDrawStyle(quadObj, GLU_SILHOUETTE); + break; + + case '0': + shade = !shade; + if (shade) { + glShadeModel(GL_SMOOTH); + gluQuadricNormals(quadObj, GLU_SMOOTH); + } else { + glShadeModel(GL_FLAT); + gluQuadricNormals(quadObj, GLU_FLAT); + } + break; + + case 'A': + stacks++; + break; + case 'a': + stacks--; + break; + + case 'S': + slices++; + break; + case 's': + slices--; + break; + + case 'd': + switch(orientation) { + case GLU_OUTSIDE: + orientation = GLU_INSIDE; + break; + case GLU_INSIDE: + default: + orientation = GLU_OUTSIDE; + break; + } + gluQuadricOrientation(quadObj, orientation); + break; + + case 'f': + whichQuadric = (whichQuadric + 1) % 4; + break; + + case 'G': + radius1 += 1; + break; + case 'g': + radius1 -= 1; + break; + + case 'J': + radius2 += 1; + break; + case 'j': + radius2 -= 1; + break; + + case 'H': + height += 2; + break; + case 'h': + height -= 2; + break; + + case 'K': + angle1 += 5; + break; + case 'k': + angle1 -= 5; + break; + + case 'L': + angle2 += 5; + break; + case 'l': + angle2 -= 5; + break; + + case 'z': + texture = !texture; + if (texture) { + gluQuadricTexture(quadObj, GL_TRUE); + glEnable(GL_TEXTURE_2D); + } else { + gluQuadricTexture(quadObj, GL_FALSE); + glDisable(GL_TEXTURE_2D); + } + break; + + case 'q': + glDisable(GL_CULL_FACE); + break; + case 'w': + glEnable(GL_CULL_FACE); + glCullFace(GL_FRONT); + break; + case 'e': + glEnable(GL_CULL_FACE); + glCullFace(GL_BACK); + break; + + case 'r': + glFrontFace(GL_CW); + break; + case 't': + glFrontFace(GL_CCW); + break; + + case 'y': + doDither = !doDither; + (doDither) ? glEnable(GL_DITHER) : glDisable(GL_DITHER); + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + + glLoadIdentity(); + glRotatef(xRotation, 1, 0, 0); + glRotatef(yRotation, 0, 1, 0); + glRotatef(zRotation, 0, 0, 1); + + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + + glColor3f(1.0, 1.0, 1.0); + switch (whichQuadric) { + case 0: + glTranslatef(0, 0, -height/20.0); + gluCylinder(quadObj, radius1/10.0, radius2/10.0, height/10.0, + slices, stacks); + break; + case 1: + gluSphere(quadObj, radius1/10.0, slices, stacks); + break; + case 2: + gluPartialDisk(quadObj, radius2/10.0, radius1/10.0, slices, + stacks, angle1, angle2); + break; + case 3: + gluDisk(quadObj, radius2/10.0, radius1/10.0, slices, stacks); + break; + } + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else if (strcmp(argv[i], "-f") == 0) { + if (i+1 >= argc || argv[i+1][0] == '-') { + printf("-f (No file name).\n"); + return GL_FALSE; + } else { + texFileName = argv[++i]; + } + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + type = GLUT_DEPTH; + type |= (rgb) ? GLUT_RGB : GLUT_INDEX; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Quad Test") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutSpecialFunc(Key2); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/readtex.c b/progs/samples/readtex.c new file mode 100644 index 00000000000..37d5fcd0d3a --- /dev/null +++ b/progs/samples/readtex.c @@ -0,0 +1,454 @@ +/* readtex.c */ + +/* + * Read an SGI .rgb image file and generate a mipmap texture set. + * Much of this code was borrowed from SGI's tk OpenGL toolkit. + */ + + + +#include <GL/gl.h> +#include <GL/glu.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "readtex.h" + + +#ifndef SEEK_SET +# define SEEK_SET 0 +#endif + + +/* +** RGB Image Structure +*/ + +typedef struct _TK_RGBImageRec { + GLint sizeX, sizeY; + GLint components; + unsigned char *data; +} TK_RGBImageRec; + + + +/******************************************************************************/ + +typedef struct _rawImageRec { + unsigned short imagic; + unsigned short type; + unsigned short dim; + unsigned short sizeX, sizeY, sizeZ; + unsigned long min, max; + unsigned long wasteBytes; + char name[80]; + unsigned long colorMap; + FILE *file; + unsigned char *tmp, *tmpR, *tmpG, *tmpB, *tmpA; + unsigned long rleEnd; + GLuint *rowStart; + GLint *rowSize; +} rawImageRec; + +/******************************************************************************/ + +static void ConvertShort(unsigned short *array, long length) +{ + unsigned long b1, b2; + unsigned char *ptr; + + ptr = (unsigned char *)array; + while (length--) { + b1 = *ptr++; + b2 = *ptr++; + *array++ = (unsigned short) ((b1 << 8) | (b2)); + } +} + +static void ConvertLong(GLuint *array, long length) +{ + unsigned long b1, b2, b3, b4; + unsigned char *ptr; + + ptr = (unsigned char *)array; + while (length--) { + b1 = *ptr++; + b2 = *ptr++; + b3 = *ptr++; + b4 = *ptr++; + *array++ = (b1 << 24) | (b2 << 16) | (b3 << 8) | (b4); + } +} + +static rawImageRec *RawImageOpen(const char *fileName) +{ + union { + int testWord; + char testByte[4]; + } endianTest; + rawImageRec *raw; + GLenum swapFlag; + int x; + + endianTest.testWord = 1; + if (endianTest.testByte[0] == 1) { + swapFlag = GL_TRUE; + } else { + swapFlag = GL_FALSE; + } + + raw = (rawImageRec *)calloc(1, sizeof(rawImageRec)); + if (raw == NULL) { + fprintf(stderr, "Out of memory!\n"); + return NULL; + } + if ((raw->file = fopen(fileName, "rb")) == NULL) { + perror(fileName); + return NULL; + } + + fread(raw, 1, 12, raw->file); + + if (swapFlag) { + ConvertShort(&raw->imagic, 6); + } + + raw->tmp = (unsigned char *)malloc(raw->sizeX*256); + raw->tmpR = (unsigned char *)malloc(raw->sizeX*256); + raw->tmpG = (unsigned char *)malloc(raw->sizeX*256); + raw->tmpB = (unsigned char *)malloc(raw->sizeX*256); + if (raw->sizeZ==4) { + raw->tmpA = (unsigned char *)malloc(raw->sizeX*256); + } + if (raw->tmp == NULL || raw->tmpR == NULL || raw->tmpG == NULL || + raw->tmpB == NULL) { + fprintf(stderr, "Out of memory!\n"); + return NULL; + } + + if ((raw->type & 0xFF00) == 0x0100) { + x = raw->sizeY * raw->sizeZ * sizeof(GLuint); + raw->rowStart = (GLuint *)malloc(x); + raw->rowSize = (GLint *)malloc(x); + if (raw->rowStart == NULL || raw->rowSize == NULL) { + fprintf(stderr, "Out of memory!\n"); + return NULL; + } + raw->rleEnd = 512 + (2 * x); + fseek(raw->file, 512, SEEK_SET); + fread(raw->rowStart, 1, x, raw->file); + fread(raw->rowSize, 1, x, raw->file); + if (swapFlag) { + ConvertLong(raw->rowStart, (long) (x/sizeof(GLuint))); + ConvertLong((GLuint *)raw->rowSize, (long) (x/sizeof(GLint))); + } + } + return raw; +} + +static void RawImageClose(rawImageRec *raw) +{ + fclose(raw->file); + free(raw->tmp); + free(raw->tmpR); + free(raw->tmpG); + free(raw->tmpB); + if (raw->rowStart) + free(raw->rowStart); + if (raw->rowSize) + free(raw->rowSize); + if (raw->sizeZ>3) { + free(raw->tmpA); + } + free(raw); +} + +static void RawImageGetRow(rawImageRec *raw, unsigned char *buf, int y, int z) +{ + unsigned char *iPtr, *oPtr, pixel; + int count, done = 0; + + if ((raw->type & 0xFF00) == 0x0100) { + fseek(raw->file, (long) raw->rowStart[y+z*raw->sizeY], SEEK_SET); + fread(raw->tmp, 1, (unsigned int)raw->rowSize[y+z*raw->sizeY], + raw->file); + + iPtr = raw->tmp; + oPtr = buf; + while (!done) { + pixel = *iPtr++; + count = (int)(pixel & 0x7F); + if (!count) { + done = 1; + return; + } + if (pixel & 0x80) { + while (count--) { + *oPtr++ = *iPtr++; + } + } else { + pixel = *iPtr++; + while (count--) { + *oPtr++ = pixel; + } + } + } + } else { + fseek(raw->file, 512+(y*raw->sizeX)+(z*raw->sizeX*raw->sizeY), + SEEK_SET); + fread(buf, 1, raw->sizeX, raw->file); + } +} + + +static void RawImageGetData(rawImageRec *raw, TK_RGBImageRec *final) +{ + unsigned char *ptr; + int i, j; + + final->data = (unsigned char *)malloc((raw->sizeX+1)*(raw->sizeY+1)*4); + if (final->data == NULL) { + fprintf(stderr, "Out of memory!\n"); + } + + ptr = final->data; + for (i = 0; i < (int)(raw->sizeY); i++) { + RawImageGetRow(raw, raw->tmpR, i, 0); + RawImageGetRow(raw, raw->tmpG, i, 1); + RawImageGetRow(raw, raw->tmpB, i, 2); + if (raw->sizeZ>3) { + RawImageGetRow(raw, raw->tmpA, i, 3); + } + for (j = 0; j < (int)(raw->sizeX); j++) { + *ptr++ = *(raw->tmpR + j); + *ptr++ = *(raw->tmpG + j); + *ptr++ = *(raw->tmpB + j); + if (raw->sizeZ>3) { + *ptr++ = *(raw->tmpA + j); + } + } + } +} + + +static TK_RGBImageRec *tkRGBImageLoad(const char *fileName) +{ + rawImageRec *raw; + TK_RGBImageRec *final; + + raw = RawImageOpen(fileName); + if (!raw) { + fprintf(stderr, "File not found\n"); + return NULL; + } + final = (TK_RGBImageRec *)malloc(sizeof(TK_RGBImageRec)); + if (final == NULL) { + fprintf(stderr, "Out of memory!\n"); + return NULL; + } + final->sizeX = raw->sizeX; + final->sizeY = raw->sizeY; + final->components = raw->sizeZ; + RawImageGetData(raw, final); + RawImageClose(raw); + return final; +} + + +static void FreeImage( TK_RGBImageRec *image ) +{ + free(image->data); + free(image); +} + + +/* + * Load an SGI .rgb file and generate a set of 2-D mipmaps from it. + * Input: imageFile - name of .rgb to read + * intFormat - internal texture format to use, or number of components + * Return: GL_TRUE if success, GL_FALSE if error. + */ +GLboolean LoadRGBMipmaps( const char *imageFile, GLint intFormat ) +{ + GLint w, h; + return LoadRGBMipmaps2( imageFile, GL_TEXTURE_2D, intFormat, &w, &h ); +} + + + +GLboolean LoadRGBMipmaps2( const char *imageFile, GLenum target, + GLint intFormat, GLint *width, GLint *height ) +{ + GLint error; + GLenum format; + TK_RGBImageRec *image; + + image = tkRGBImageLoad( imageFile ); + if (!image) { + return GL_FALSE; + } + + if (image->components==3) { + format = GL_RGB; + } + else if (image->components==4) { + format = GL_RGBA; + } + else { + /* not implemented */ + fprintf(stderr, + "Error in LoadRGBMipmaps %d-component images not implemented\n", + image->components ); + return GL_FALSE; + } + + error = gluBuild2DMipmaps( target, + intFormat, + image->sizeX, image->sizeY, + format, + GL_UNSIGNED_BYTE, + image->data ); + + *width = image->sizeX; + *height = image->sizeY; + + FreeImage(image); + + return error ? GL_FALSE : GL_TRUE; +} + + + +/* + * Load an SGI .rgb file and return a pointer to the image data. + * Input: imageFile - name of .rgb to read + * Output: width - width of image + * height - height of image + * format - format of image (GL_RGB or GL_RGBA) + * Return: pointer to image data or NULL if error + */ +GLubyte *LoadRGBImage( const char *imageFile, GLint *width, GLint *height, + GLenum *format ) +{ + TK_RGBImageRec *image; + GLint bytes; + GLubyte *buffer; + + image = tkRGBImageLoad( imageFile ); + if (!image) { + return NULL; + } + + if (image->components==3) { + *format = GL_RGB; + } + else if (image->components==4) { + *format = GL_RGBA; + } + else { + /* not implemented */ + fprintf(stderr, + "Error in LoadRGBImage %d-component images not implemented\n", + image->components ); + return NULL; + } + + *width = image->sizeX; + *height = image->sizeY; + + bytes = image->sizeX * image->sizeY * image->components; + buffer = (GLubyte *) malloc(bytes); + if (!buffer) + return NULL; + + memcpy( (void *) buffer, (void *) image->data, bytes ); + + FreeImage(image); + + return buffer; +} + +#define CLAMP( X, MIN, MAX ) ( (X)<(MIN) ? (MIN) : ((X)>(MAX) ? (MAX) : (X)) ) + + +static void ConvertRGBtoYUV(GLint w, GLint h, GLint texel_bytes, + const GLubyte *src, + GLushort *dest) +{ + GLint i, j; + + for (i = 0; i < h; i++) { + for (j = 0; j < w; j++) { + const GLfloat r = (src[0]) / 255.0; + const GLfloat g = (src[1]) / 255.0; + const GLfloat b = (src[2]) / 255.0; + GLfloat y, cr, cb; + GLint iy, icr, icb; + + y = r * 65.481 + g * 128.553 + b * 24.966 + 16; + cb = r * -37.797 + g * -74.203 + b * 112.0 + 128; + cr = r * 112.0 + g * -93.786 + b * -18.214 + 128; + /*printf("%f %f %f -> %f %f %f\n", r, g, b, y, cb, cr);*/ + iy = (GLint) CLAMP(y, 0, 254); + icb = (GLint) CLAMP(cb, 0, 254); + icr = (GLint) CLAMP(cr, 0, 254); + + if (j & 1) { + /* odd */ + *dest = (iy << 8) | icr; + } + else { + /* even */ + *dest = (iy << 8) | icb; + } + dest++; + src += texel_bytes; + } + } +} + + +/* + * Load an SGI .rgb file and return a pointer to the image data, converted + * to 422 yuv. + * + * Input: imageFile - name of .rgb to read + * Output: width - width of image + * height - height of image + * Return: pointer to image data or NULL if error + */ +GLushort *LoadYUVImage( const char *imageFile, GLint *width, GLint *height ) +{ + TK_RGBImageRec *image; + GLushort *buffer; + + image = tkRGBImageLoad( imageFile ); + if (!image) { + return NULL; + } + + if (image->components != 3 && image->components !=4 ) { + /* not implemented */ + fprintf(stderr, + "Error in LoadYUVImage %d-component images not implemented\n", + image->components ); + return NULL; + } + + *width = image->sizeX; + *height = image->sizeY; + + buffer = (GLushort *) malloc( image->sizeX * image->sizeY * 2 ); + + if (buffer) + ConvertRGBtoYUV( image->sizeX, + image->sizeY, + image->components, + image->data, + buffer ); + + + FreeImage(image); + return buffer; +} + diff --git a/progs/samples/rgbtoppm.c b/progs/samples/rgbtoppm.c new file mode 100644 index 00000000000..116d9a8cfa5 --- /dev/null +++ b/progs/samples/rgbtoppm.c @@ -0,0 +1,285 @@ + +/* texture.c - by David Blythe, SGI */ + +/* texload is a simplistic routine for reading an SGI .rgb image file. */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <GL/glut.h> + +typedef struct _ImageRec { + unsigned short imagic; + unsigned short type; + unsigned short dim; + unsigned short xsize, ysize, zsize; + unsigned int min, max; + unsigned int wasteBytes; + char name[80]; + unsigned long colorMap; + FILE *file; + unsigned char *tmp; + unsigned long rleEnd; + unsigned int *rowStart; + int *rowSize; +} ImageRec; + +void +rgbtorgb(unsigned char *r,unsigned char *g,unsigned char *b,unsigned char *l,int n) { + while(n--) { + l[0] = r[0]; + l[1] = g[0]; + l[2] = b[0]; + l += 3; r++; g++; b++; + } +} + +static void +ConvertShort(unsigned short *array, unsigned int length) { + unsigned short b1, b2; + unsigned char *ptr; + + ptr = (unsigned char *)array; + while (length--) { + b1 = *ptr++; + b2 = *ptr++; + *array++ = (b1 << 8) | (b2); + } +} + +static void +ConvertUint(unsigned *array, unsigned int length) { + unsigned int b1, b2, b3, b4; + unsigned char *ptr; + + ptr = (unsigned char *)array; + while (length--) { + b1 = *ptr++; + b2 = *ptr++; + b3 = *ptr++; + b4 = *ptr++; + *array++ = (b1 << 24) | (b2 << 16) | (b3 << 8) | (b4); + } +} + +static ImageRec *ImageOpen(char *fileName) +{ + union { + int testWord; + char testByte[4]; + } endianTest; + ImageRec *image; + int swapFlag; + int x; + + endianTest.testWord = 1; + if (endianTest.testByte[0] == 1) { + swapFlag = 1; + } else { + swapFlag = 0; + } + + image = (ImageRec *)malloc(sizeof(ImageRec)); + if (image == NULL) { + fprintf(stderr, "Out of memory!\n"); + exit(1); + } + if ((image->file = fopen(fileName, "rb")) == NULL) { + return NULL; + } + + fread(image, 1, 12, image->file); + + if (swapFlag) { + ConvertShort(&image->imagic, 6); + } + + image->tmp = (unsigned char *)malloc(image->xsize*256); + if (image->tmp == NULL) { + fprintf(stderr, "\nOut of memory!\n"); + exit(1); + } + + if ((image->type & 0xFF00) == 0x0100) { + x = image->ysize * image->zsize * (int) sizeof(unsigned); + image->rowStart = (unsigned *)malloc(x); + image->rowSize = (int *)malloc(x); + if (image->rowStart == NULL || image->rowSize == NULL) { + fprintf(stderr, "\nOut of memory!\n"); + exit(1); + } + image->rleEnd = 512 + (2 * x); + fseek(image->file, 512, SEEK_SET); + fread(image->rowStart, 1, x, image->file); + fread(image->rowSize, 1, x, image->file); + if (swapFlag) { + ConvertUint(image->rowStart, x/(int) sizeof(unsigned)); + ConvertUint((unsigned *)image->rowSize, x/(int) sizeof(int)); + } + } + return image; +} + +static void +ImageClose(ImageRec *image) { + fclose(image->file); + free(image->tmp); + free(image); +} + +static void +ImageGetRow(ImageRec *image, unsigned char *buf, int y, int z) { + unsigned char *iPtr, *oPtr, pixel; + int count; + + if ((image->type & 0xFF00) == 0x0100) { + fseek(image->file, (long) image->rowStart[y+z*image->ysize], SEEK_SET); + fread(image->tmp, 1, (unsigned int)image->rowSize[y+z*image->ysize], + image->file); + + iPtr = image->tmp; + oPtr = buf; + for (;;) { + pixel = *iPtr++; + count = (int)(pixel & 0x7F); + if (!count) { + return; + } + if (pixel & 0x80) { + while (count--) { + *oPtr++ = *iPtr++; + } + } else { + pixel = *iPtr++; + while (count--) { + *oPtr++ = pixel; + } + } + } + } else { + fseek(image->file, 512+(y*image->xsize)+(z*image->xsize*image->ysize), + SEEK_SET); + fread(buf, 1, image->xsize, image->file); + } +} + +GLubyte * +read_alpha_texture(char *name, int *width, int *height) +{ + unsigned char *base, *lptr; + ImageRec *image; + int y; + + image = ImageOpen(name); + if(!image) { + return NULL; + } + + (*width)=image->xsize; + (*height)=image->ysize; + if (image->zsize != 1) { + ImageClose(image); + return NULL; + } + + base = (unsigned char *)malloc(image->xsize*image->ysize*sizeof(unsigned char)); + lptr = base; + for(y=0; y<image->ysize; y++) { + ImageGetRow(image,lptr,y,0); + lptr += image->xsize; + } + ImageClose(image); + + return (unsigned char *) base; +} + +GLubyte * +read_rgb_texture(char *name, int *width, int *height) +{ + unsigned char *base, *ptr; + unsigned char *rbuf, *gbuf, *bbuf, *abuf; + ImageRec *image; + int y; + + image = ImageOpen(name); + + if(!image) + return NULL; + (*width)=image->xsize; + (*height)=image->ysize; + if (image->zsize != 3 && image->zsize != 4) { + ImageClose(image); + return NULL; + } + + base = (unsigned char*)malloc(image->xsize*image->ysize*sizeof(unsigned int)*3); + rbuf = (unsigned char *)malloc(image->xsize*sizeof(unsigned char)); + gbuf = (unsigned char *)malloc(image->xsize*sizeof(unsigned char)); + bbuf = (unsigned char *)malloc(image->xsize*sizeof(unsigned char)); + abuf = (unsigned char *)malloc(image->xsize*sizeof(unsigned char)); + if(!base || !rbuf || !gbuf || !bbuf || !abuf) { + if (base) free(base); + if (rbuf) free(rbuf); + if (gbuf) free(gbuf); + if (bbuf) free(bbuf); + if (abuf) free(abuf); + return NULL; + } + ptr = base; + for(y=0; y<image->ysize; y++) { + if(image->zsize == 4) { + ImageGetRow(image,rbuf,y,0); + ImageGetRow(image,gbuf,y,1); + ImageGetRow(image,bbuf,y,2); + ImageGetRow(image,abuf,y,3); /* Discard. */ + rgbtorgb(rbuf,gbuf,bbuf,ptr,image->xsize); + ptr += (image->xsize * 3); + } else { + ImageGetRow(image,rbuf,y,0); + ImageGetRow(image,gbuf,y,1); + ImageGetRow(image,bbuf,y,2); + rgbtorgb(rbuf,gbuf,bbuf,ptr,image->xsize); + ptr += (image->xsize * 3); + } + } + ImageClose(image); + free(rbuf); + free(gbuf); + free(bbuf); + free(abuf); + + return (GLubyte *) base; +} + +int main(int argc, char **argv) +{ + int width, height; + GLubyte *data; + char buff[32]; + int n; + FILE *fo; + + if (argc != 3) + { + fprintf(stderr, "usage: %s <infile.rgb> <outfile.p6>\n", argv[0]); + return 1; + } + + data = read_rgb_texture(argv[1], &width, &height); + + n = sprintf(buff, "P6\n%d %d\n255\n", width, height); + + /* [dBorca] avoid LF to CRLF conversion */ + if ((fo = fopen(argv[2], "wb")) == NULL) { + fprintf(stderr, "Cannot open output file!\n"); + exit(1); + } + + fwrite(buff, n, 1, fo); + fwrite(data, width * 3, height, fo); + + fclose(fo); + + return 0; +} diff --git a/progs/samples/select.c b/progs/samples/select.c new file mode 100644 index 00000000000..2c8f333bfa9 --- /dev/null +++ b/progs/samples/select.c @@ -0,0 +1,456 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#include <string.h> +#include <time.h> +#include <GL/glut.h> + + +#define MAXOBJS 10000 +#define MAXSELECT 100 +#define MAXFEED 300 +#define SOLID 1 +#define LINE 2 +#define POINT 3 + + +GLint windW, windH; + +GLuint selectBuf[MAXSELECT]; +GLfloat feedBuf[MAXFEED]; +GLint vp[4]; +float zRotation = 90.0; +float zoom = 1.0; +GLint objectCount; +GLint numObjects; +struct object { + float v1[2]; + float v2[2]; + float v3[2]; + float color[3]; +} objects[MAXOBJS]; +GLenum linePoly = GL_FALSE; + + +static void InitObjects(GLint num) +{ + GLint i; + float x, y; + + if (num > MAXOBJS) { + num = MAXOBJS; + } + if (num < 1) { + num = 1; + } + objectCount = num; + + srand((unsigned int)time(NULL)); + for (i = 0; i < num; i++) { + x = (rand() % 300) - 150; + y = (rand() % 300) - 150; + + objects[i].v1[0] = x + (rand() % 50) - 25; + objects[i].v2[0] = x + (rand() % 50) - 25; + objects[i].v3[0] = x + (rand() % 50) - 25; + objects[i].v1[1] = y + (rand() % 50) - 25; + objects[i].v2[1] = y + (rand() % 50) - 25; + objects[i].v3[1] = y + (rand() % 50) - 25; + objects[i].color[0] = ((rand() % 100) + 50) / 150.0; + objects[i].color[1] = ((rand() % 100) + 50) / 150.0; + objects[i].color[2] = ((rand() % 100) + 50) / 150.0; + } +} + +static void Init(void) +{ + + numObjects = 10; + InitObjects(numObjects); + glGetIntegerv(GL_VIEWPORT, vp); +} + +static void Reshape(int width, int height) +{ + + windW = (GLint)width; + windH = (GLint)height; +} + +static void Render(GLenum mode) +{ + GLint i; + + for (i = 0; i < objectCount; i++) { + if (mode == GL_SELECT) { + glLoadName(i); + } + glColor3fv(objects[i].color); + glBegin(GL_POLYGON); + glVertex2fv(objects[i].v1); + glVertex2fv(objects[i].v2); + glVertex2fv(objects[i].v3); + glEnd(); + } +} + +static GLint DoSelect(GLint x, GLint y) +{ + GLint hits; + + glSelectBuffer(MAXSELECT, selectBuf); + (void)glRenderMode(GL_SELECT); + glInitNames(); + glPushName(~0); + + glPushMatrix(); + + glViewport(0, 0, windW, windH); + glGetIntegerv(GL_VIEWPORT, vp); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluPickMatrix(x, windH-y, 4, 4, vp); + gluOrtho2D(-175, 175, -175, 175); + glMatrixMode(GL_MODELVIEW); + + glClearColor(0.0, 0.0, 0.0, 0.0); + glClear(GL_COLOR_BUFFER_BIT); + + glScalef(zoom, zoom, zoom); + glRotatef(zRotation, 0, 0, 1); + + Render(GL_SELECT); + + glPopMatrix(); + + hits = glRenderMode(GL_RENDER); + if (hits <= 0) { + return -1; + } + + return selectBuf[(hits-1)*4+3]; +} + +static void RecolorTri(GLint h) +{ + + objects[h].color[0] = ((rand() % 100) + 50) / 150.0; + objects[h].color[1] = ((rand() % 100) + 50) / 150.0; + objects[h].color[2] = ((rand() % 100) + 50) / 150.0; +} + +static void DeleteTri(GLint h) +{ + + objects[h] = objects[objectCount-1]; + objectCount--; +} + +static void GrowTri(GLint h) +{ + float v[2]; + float *oldV = NULL; + GLint i; + + v[0] = objects[h].v1[0] + objects[h].v2[0] + objects[h].v3[0]; + v[1] = objects[h].v1[1] + objects[h].v2[1] + objects[h].v3[1]; + v[0] /= 3; + v[1] /= 3; + + for (i = 0; i < 3; i++) { + switch (i) { + case 0: + oldV = objects[h].v1; + break; + case 1: + oldV = objects[h].v2; + break; + case 2: + oldV = objects[h].v3; + break; + } + oldV[0] = 1.5 * (oldV[0] - v[0]) + v[0]; + oldV[1] = 1.5 * (oldV[1] - v[1]) + v[1]; + } +} + +static void Mouse(int button, int state, int mouseX, int mouseY) +{ + GLint hit; + + if (state != GLUT_DOWN) + return; + + hit = DoSelect((GLint)mouseX, (GLint)mouseY); + if (hit != -1) { + if (button == GLUT_LEFT_BUTTON) { + RecolorTri(hit); + } + if (button == GLUT_MIDDLE_BUTTON) { + GrowTri(hit); + } + if (button == GLUT_RIGHT_BUTTON) { + DeleteTri(hit); + } + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + + glPushMatrix(); + + glViewport(0, 0, windW, windH); + glGetIntegerv(GL_VIEWPORT, vp); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(-175, 175, -175, 175); + glMatrixMode(GL_MODELVIEW); + + glClearColor(0.0, 0.0, 0.0, 0.0); + glClear(GL_COLOR_BUFFER_BIT); + + glScalef(zoom, zoom, zoom); + glRotatef(zRotation, 0, 0, 1); + + Render(GL_RENDER); + + glPopMatrix(); + + glFlush(); +} + +static void DrawZoom(GLint x, GLint y) +{ + + glPushMatrix(); + + glViewport(0, 0, windW, windH); + glGetIntegerv(GL_VIEWPORT, vp); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluPickMatrix(x, windH-y, 4, 4, vp); + gluOrtho2D(-175, 175, -175, 175); + glMatrixMode(GL_MODELVIEW); + + glClearColor(0.0, 0.0, 0.0, 0.0); + glClear(GL_COLOR_BUFFER_BIT); + + glScalef(zoom, zoom, zoom); + glRotatef(zRotation, 0, 0, 1); + + Render(GL_RENDER); + + glPopMatrix(); +} + +static void DumpFeedbackVert(GLint *i, GLint n) +{ + GLint index; + + index = *i; + if (index+7 > n) { + *i = n; + printf(" ???\n"); + return; + } + printf(" (%g %g %g), color = (%4.2f %4.2f %4.2f)\n", + feedBuf[index], + feedBuf[index+1], + feedBuf[index+2], + feedBuf[index+3], + feedBuf[index+4], + feedBuf[index+5]); + index += 7; + *i = index; +} + +static void DrawFeedback(GLint n) +{ + GLint i; + GLint verts; + + printf("Feedback results (%d floats):\n", n); + for (i = 0; i < n; i++) { + switch ((GLint)feedBuf[i]) { + case GL_POLYGON_TOKEN: + printf("Polygon"); + i++; + if (i < n) { + verts = (GLint)feedBuf[i]; + i++; + printf(": %d vertices", verts); + } else { + verts = 0; + } + printf("\n"); + while (verts) { + DumpFeedbackVert(&i, n); + verts--; + } + i--; + break; + case GL_LINE_TOKEN: + printf("Line:\n"); + i++; + DumpFeedbackVert(&i, n); + DumpFeedbackVert(&i, n); + i--; + break; + case GL_LINE_RESET_TOKEN: + printf("Line Reset:\n"); + i++; + DumpFeedbackVert(&i, n); + DumpFeedbackVert(&i, n); + i--; + break; + default: + printf("%9.2f\n", feedBuf[i]); + break; + } + } + if (i == MAXFEED) { + printf("...\n"); + } + printf("\n"); +} + +static void DoFeedback(void) +{ + GLint x; + + glFeedbackBuffer(MAXFEED, GL_3D_COLOR, feedBuf); + (void)glRenderMode(GL_FEEDBACK); + + glPushMatrix(); + + glViewport(0, 0, windW, windH); + glGetIntegerv(GL_VIEWPORT, vp); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(-175, 175, -175, 175); + glMatrixMode(GL_MODELVIEW); + + glClearColor(0.0, 0.0, 0.0, 0.0); + glClear(GL_COLOR_BUFFER_BIT); + + glScalef(zoom, zoom, zoom); + glRotatef(zRotation, 0, 0, 1); + + Render(GL_FEEDBACK); + + glPopMatrix(); + + x = glRenderMode(GL_RENDER); + if (x == -1) { + x = MAXFEED; + } + + DrawFeedback((GLint)x); +} + +static void Key2(int key, int x, int y) +{ + switch (key) { + case GLUT_KEY_LEFT: + zRotation += 0.5; + break; + case GLUT_KEY_RIGHT: + zRotation -= 0.5; + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Key(unsigned char key, int x, int y) +{ + switch (key) { + case 27: + exit(1); + case 'Z': + zoom /= 0.75; + break; + case 'z': + zoom *= 0.75; + break; + case 'f': + DoFeedback(); + break; + case 'd': + DrawZoom(x, y); + break; + case 'l': + linePoly = !linePoly; + if (linePoly) { + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); + } else { + glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); + } + break; + default: + return; + } + + glutPostRedisplay(); +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + windW = 300; + windH = 300; + glutInitWindowPosition(0, 0); glutInitWindowSize( windW, windH); + + type = GLUT_RGB | GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Select Test") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutSpecialFunc(Key2); + glutMouseFunc(Mouse); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/shape.c b/progs/samples/shape.c new file mode 100644 index 00000000000..d342ee5b07b --- /dev/null +++ b/progs/samples/shape.c @@ -0,0 +1,345 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define OPENGL_WIDTH 24 +#define OPENGL_HEIGHT 13 + + +GLenum rgb, doubleBuffer, windType; +GLint objectIndex = 0; +GLuint bases[20]; +float angleX = 0.0, angleY = 0.0, angleZ = 0.0; +float scaleX = 1.0, scaleY = 1.0, scaleZ = 1.0; +float shiftX = 0.0, shiftY = 0.0, shiftZ = 0.0; + + +#include "tkmap.c" + +static void Init(void) +{ + + bases[0] = glGenLists(1); + glNewList(bases[0], GL_COMPILE); + glutWireSphere(1.0, 20, 10); + glEndList(); + + bases[1] = glGenLists(1); + glNewList(bases[1], GL_COMPILE); + glutSolidSphere(1.0, 20, 10); + glEndList(); + + bases[2] = glGenLists(1); + glNewList(bases[2], GL_COMPILE); + glutWireCube(1.0); + glEndList(); + + bases[3] = glGenLists(1); + glNewList(bases[3], GL_COMPILE); + glutSolidCube(1.0); + glEndList(); + + bases[4] = glGenLists(1); + glNewList(bases[4], GL_COMPILE); + glutWireTorus(1.0, 1.0, 10, 20); + glEndList(); + + bases[5] = glGenLists(1); + glNewList(bases[5], GL_COMPILE); + glutSolidTorus(1.0, 1.0, 10, 20); + glEndList(); + + bases[6] = glGenLists(1); + glNewList(bases[6], GL_COMPILE); + glutWireIcosahedron(); + glEndList(); + + bases[7] = glGenLists(1); + glNewList(bases[7], GL_COMPILE); + glutSolidIcosahedron(); + glEndList(); + + bases[8] = glGenLists(1); + glNewList(bases[8], GL_COMPILE); + glutWireOctahedron(); + glEndList(); + + bases[9] = glGenLists(1); + glNewList(bases[9], GL_COMPILE); + glutSolidOctahedron(); + glEndList(); + + bases[10] = glGenLists(1); + glNewList(bases[10], GL_COMPILE); + glutWireTetrahedron(); + glEndList(); + + bases[11] = glGenLists(1); + glNewList(bases[11], GL_COMPILE); + glutSolidTetrahedron(); + glEndList(); + + bases[12] = glGenLists(1); + glNewList(bases[12], GL_COMPILE); + glutWireDodecahedron(); + glEndList(); + + bases[13] = glGenLists(1); + glNewList(bases[13], GL_COMPILE); + glutSolidDodecahedron(); + glEndList(); + + bases[14] = glGenLists(1); + glNewList(bases[14], GL_COMPILE); + glutWireCone(5.0, 5.0, 20, 10); + glEndList(); + + bases[15] = glGenLists(1); + glNewList(bases[15], GL_COMPILE); + glutSolidCone(5.0, 5.0, 20, 10); + glEndList(); + + bases[16] = glGenLists(1); + glNewList(bases[16], GL_COMPILE); + glutWireTeapot(1.0); + glEndList(); + + bases[17] = glGenLists(1); + glNewList(bases[17], GL_COMPILE); + glutSolidTeapot(1.0); + glEndList(); + + glClearColor(0.0, 0.0, 0.0, 0.0); + glClearIndex(0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-400.0, 400.0, -200.0, 200.0, -400.0, 400.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key2(int key, int x, int y) +{ + + switch (key) { + case GLUT_KEY_LEFT: + shiftX -= 20.0; + break; + case GLUT_KEY_RIGHT: + shiftX += 20.0; + break; + case GLUT_KEY_UP: + shiftY += 20.0; + break; + case GLUT_KEY_DOWN: + shiftY -= 20.0; + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + + case 32: + objectIndex++; + if (objectIndex > 17) { + objectIndex = 0; + } + break; + + case 'n': + shiftZ += 20.0; + break; + case 'm': + shiftZ -= 20.0; + break; + + case 'q': + scaleX -= 0.1; + if (scaleX < 0.1) { + scaleX = 0.1; + } + break; + case 'w': + scaleX += 0.1; + break; + case 'a': + scaleY -= 0.1; + if (scaleY < 0.1) { + scaleY = 0.1; + } + break; + case 's': + scaleY += 0.1; + break; + case 'z': + scaleZ -= 0.1; + if (scaleZ < 0.1) { + scaleZ = 0.1; + } + break; + case 'x': + scaleZ += 0.1; + break; + + case 'e': + angleX -= 5.0; + if (angleX < 0.0) { + angleX = 360.0 + angleX; + } + break; + case 'r': + angleX += 5.0; + if (angleX > 360.0) { + angleX = angleX - 360.0; + } + break; + case 'd': + angleY -= 5.0; + if (angleY < 0.0) { + angleY = 360.0 + angleY; + } + break; + case 'f': + angleY += 5.0; + if (angleY > 360.0) { + angleY = angleY - 360.0; + } + break; + case 'c': + angleZ -= 5.0; + if (angleZ < 0.0) { + angleZ = 360.0 + angleZ; + } + break; + case 'v': + angleZ += 5.0; + if (angleZ > 360.0) { + angleZ = angleZ - 360.0; + } + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + + glClear(GL_COLOR_BUFFER_BIT); + + SetColor(COLOR_WHITE); + + glPushMatrix(); + + glTranslatef(shiftX, shiftY, shiftZ); + glRotatef(angleX, 1.0, 0.0, 0.0); + glRotatef(angleY, 0.0, 1.0, 0.0); + glRotatef(angleZ, 0.0, 0.0, 1.0); + glScalef(scaleX, scaleY, scaleZ); + + glCallList(bases[objectIndex]); + glPopMatrix(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 400, 400); + + windType = (rgb) ? GLUT_RGB : GLUT_INDEX; + windType |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(windType); + + if (glutCreateWindow("Font Test") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutSpecialFunc(Key2); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/sphere.c b/progs/samples/sphere.c new file mode 100644 index 00000000000..7d0508dee9f --- /dev/null +++ b/progs/samples/sphere.c @@ -0,0 +1,1014 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* BEP: renamed "nearest" as "nnearest" to avoid math.h collision on AIX */ + +#include <stdio.h> +#include <string.h> +#include <math.h> +#include <stdlib.h> +#include <GL/glut.h> +#include "readtex.h" + + +#ifndef PI +#define PI 3.14159265358979323846 +#endif + + +GLenum doubleBuffer; +int W = 400, H = 400; + +char *imageFileName = "../images/reflect.rgb"; + +float *minFilter, *magFilter, *sWrapMode, *tWrapMode; +float decal[] = {GL_DECAL}; +float modulate[] = {GL_MODULATE}; +float repeat[] = {GL_REPEAT}; +float clamp[] = {GL_CLAMP}; +float nnearest[] = {GL_NEAREST}; +float linear[] = {GL_LINEAR}; +float nearest_mipmap_nearest[] = {GL_NEAREST_MIPMAP_NEAREST}; +float nearest_mipmap_linear[] = {GL_NEAREST_MIPMAP_LINEAR}; +float linear_mipmap_nearest[] = {GL_LINEAR_MIPMAP_NEAREST}; +float linear_mipmap_linear[] = {GL_LINEAR_MIPMAP_LINEAR}; +GLint sphereMap[] = {GL_SPHERE_MAP}; + +float xRotation = 0.0, yRotation = 0.0; +float zTranslate = -3.0; +GLenum autoRotate = GL_TRUE; +GLboolean isLit = GL_TRUE; +GLboolean isFogged = GL_FALSE; +GLboolean doTexture = GL_TRUE; +float *textureEnvironment = modulate; + +int cube, cage, cylinder, torus, genericObject; + +float c[6][4][4][3] = { + { + { + { + 1.0, 1.0, -1.0 + }, + { + 0.0, 1.0, -1.0 + }, + { + 0.0, 0.0, -1.0 + }, + { + 1.0, 0.0, -1.0 + }, + }, + { + { + 0.0, 1.0, -1.0 + }, + { + -1.0, 1.0, -1.0 + }, + { + -1.0, 0.0, -1.0 + }, + { + 0.0, 0.0, -1.0 + }, + }, + { + { + 0.0, 0.0, -1.0 + }, + { + -1.0, 0.0, -1.0 + }, + { + -1.0, -1.0, -1.0 + }, + { + 0.0, -1.0, -1.0 + }, + }, + { + { + 1.0, 0.0, -1.0 + }, + { + 0.0, 0.0, -1.0 + }, + { + 0.0, -1.0, -1.0 + }, + { + 1.0, -1.0, -1.0 + }, + }, + }, + { + { + { + 1.0, 1.0, 1.0 + }, + { + 1.0, 1.0, 0.0 + }, + { + 1.0, 0.0, 0.0 + }, + { + 1.0, 0.0, 1.0 + }, + }, + { + { + 1.0, 1.0, 0.0 + }, + { + 1.0, 1.0, -1.0 + }, + { + 1.0, 0.0, -1.0 + }, + { + 1.0, 0.0, 0.0 + }, + }, + { + { + 1.0, 0.0, -1.0 + }, + { + 1.0, -1.0, -1.0 + }, + { + 1.0, -1.0, 0.0 + }, + { + 1.0, 0.0, 0.0 + }, + }, + { + { + 1.0, 0.0, 0.0 + }, + { + 1.0, -1.0, 0.0 + }, + { + 1.0, -1.0, 1.0 + }, + { + 1.0, 0.0, 1.0 + }, + }, + }, + { + { + { + -1.0, 1.0, 1.0 + }, + { + 0.0, 1.0, 1.0 + }, + { + 0.0, 0.0, 1.0 + }, + { + -1.0, 0.0, 1.0 + }, + }, + { + { + 0.0, 1.0, 1.0 + }, + { + 1.0, 1.0, 1.0 + }, + { + 1.0, 0.0, 1.0 + }, + { + 0.0, 0.0, 1.0 + }, + }, + { + { + 1.0, 0.0, 1.0 + }, + { + 1.0, -1.0, 1.0 + }, + { + 0.0, -1.0, 1.0 + }, + { + 0.0, 0.0, 1.0 + }, + }, + { + { + 0.0, -1.0, 1.0 + }, + { + -1.0, -1.0, 1.0 + }, + { + -1.0, 0.0, 1.0 + }, + { + 0.0, 0.0, 1.0 + }, + }, + }, + { + { + { + -1.0, 1.0, -1.0 + }, + { + -1.0, 1.0, 0.0 + }, + { + -1.0, 0.0, 0.0 + }, + { + -1.0, 0.0, -1.0 + }, + }, + { + { + -1.0, 1.0, 0.0 + }, + { + -1.0, 1.0, 1.0 + }, + { + -1.0, 0.0, 1.0 + }, + { + -1.0, 0.0, 0.0 + }, + }, + { + { + -1.0, 0.0, 1.0 + }, + { + -1.0, -1.0, 1.0 + }, + { + -1.0, -1.0, 0.0 + }, + { + -1.0, 0.0, 0.0 + }, + }, + { + { + -1.0, -1.0, 0.0 + }, + { + -1.0, -1.0, -1.0 + }, + { + -1.0, 0.0, -1.0 + }, + { + -1.0, 0.0, 0.0 + }, + }, + }, + { + { + { + -1.0, 1.0, 1.0 + }, + { + -1.0, 1.0, 0.0 + }, + { + 0.0, 1.0, 0.0 + }, + { + 0.0, 1.0, 1.0 + }, + }, + { + { + -1.0, 1.0, 0.0 + }, + { + -1.0, 1.0, -1.0 + }, + { + 0.0, 1.0, -1.0 + }, + { + 0.0, 1.0, 0.0 + }, + }, + { + { + 0.0, 1.0, -1.0 + }, + { + 1.0, 1.0, -1.0 + }, + { + 1.0, 1.0, 0.0 + }, + { + 0.0, 1.0, 0.0 + }, + }, + { + { + 1.0, 1.0, 0.0 + }, + { + 1.0, 1.0, 1.0 + }, + { + 0.0, 1.0, 1.0 + }, + { + 0.0, 1.0, 0.0 + }, + }, + }, + { + { + { + -1.0, -1.0, -1.0 + }, + { + -1.0, -1.0, 0.0 + }, + { + 0.0, -1.0, 0.0 + }, + { + 0.0, -1.0, -1.0 + }, + }, + { + { + -1.0, -1.0, 0.0 + }, + { + -1.0, -1.0, 1.0 + }, + { + 0.0, -1.0, 1.0 + }, + { + 0.0, -1.0, 0.0 + }, + }, + { + { + 0.0, -1.0, 1.0 + }, + { + 1.0, -1.0, 1.0 + }, + { + 1.0, -1.0, 0.0 + }, + { + 0.0, -1.0, 0.0 + }, + }, + { + { + 1.0, -1.0, 0.0 + }, + { + 1.0, -1.0, -1.0 + }, + { + 0.0, -1.0, -1.0 + }, + { + 0.0, -1.0, 0.0 + }, + }, + } +}; + +float n[6][3] = { + { + 0.0, 0.0, -1.0 + }, + { + 1.0, 0.0, 0.0 + }, + { + 0.0, 0.0, 1.0 + }, + { + -1.0, 0.0, 0.0 + }, + { + 0.0, 1.0, 0.0 + }, + { + 0.0, -1.0, 0.0 + } +}; + +GLfloat identity[16] = { + 1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1, +}; + + +void BuildCylinder(int numEdges) +{ + int i, top = 1.0, bottom = -1.0; + float x[100], y[100], angle; + + for (i = 0; i <= numEdges; i++) { + angle = i * 2.0 * PI / numEdges; + x[i] = cos(angle); /* was cosf() */ + y[i] = sin(angle); /* was sinf() */ + } + + glNewList(cylinder, GL_COMPILE); + glBegin(GL_TRIANGLE_STRIP); + for (i = 0; i <= numEdges; i++) { + glNormal3f(x[i], y[i], 0.0); + glVertex3f(x[i], y[i], bottom); + glVertex3f(x[i], y[i], top); + } + glEnd(); + glBegin(GL_TRIANGLE_FAN); + glNormal3f(0.0, 0.0, 1.0); + glVertex3f(0.0, 0.0, top); + for (i = 0; i <= numEdges; i++) { + glVertex3f(x[i], -y[i], top); + } + glEnd(); + glBegin(GL_TRIANGLE_FAN); + glNormal3f(0.0, 0.0, -1.0); + glVertex3f(0.0, 0.0, bottom); + for (i = 0; i <= numEdges; i++) { + glVertex3f(x[i], y[i], bottom); + } + glEnd(); + glEndList(); +} + +void BuildTorus(float rc, int numc, float rt, int numt) +{ + int i, j, k; + double s, t; + double x, y, z; + double pi, twopi; + + pi = 3.14159265358979323846; + twopi = 2.0 * pi; + + glNewList(torus, GL_COMPILE); + for (i = 0; i < numc; i++) { + glBegin(GL_QUAD_STRIP); + for (j = 0; j <= numt; j++) { + for (k = 0; k <= 1; k++) { + s = (i + k) % numc + 0.5; + t = j % numt; + + x = cos(t*twopi/numt) * cos(s*twopi/numc); + y = sin(t*twopi/numt) * cos(s*twopi/numc); + z = sin(s*twopi/numc); + glNormal3f(x, y, z); + + x = (rt + rc * cos(s*twopi/numc)) * cos(t*twopi/numt); + y = (rt + rc * cos(s*twopi/numc)) * sin(t*twopi/numt); + z = rc * sin(s*twopi/numc); + glVertex3f(x, y, z); + } + } + glEnd(); + } + glEndList(); +} + +void BuildCage(void) +{ + int i; + float inc; + float right, left, top, bottom, front, back; + + front = 0.0; + back = -8.0; + + left = -4.0; + bottom = -4.0; + right = 4.0; + top = 4.0; + + inc = 2.0 * 4.0 * 0.1; + + glNewList(cage, GL_COMPILE); + for (i = 0; i < 10; i++) { + + /* + ** Back + */ + glBegin(GL_LINES); + glVertex3f(left+i*inc, top, back); + glVertex3f(left+i*inc, bottom, back); + glEnd(); + glBegin(GL_LINES); + glVertex3f(right, bottom+i*inc, back); + glVertex3f(left, bottom+i*inc, back); + glEnd(); + + /* + ** Front + */ + glBegin(GL_LINES); + glVertex3f(left+i*inc, top, front); + glVertex3f(left+i*inc, bottom, front); + glEnd(); + glBegin(GL_LINES); + glVertex3f(right, bottom+i*inc, front); + glVertex3f(left, bottom+i*inc, front); + glEnd(); + + /* + ** Left + */ + glBegin(GL_LINES); + glVertex3f(left, bottom+i*inc, front); + glVertex3f(left, bottom+i*inc, back); + glEnd(); + glBegin(GL_LINES); + glVertex3f(left, top, back+i*inc); + glVertex3f(left, bottom, back+i*inc); + glEnd(); + + /* + ** Right + */ + glBegin(GL_LINES); + glVertex3f(right, top-i*inc, front); + glVertex3f(right, top-i*inc, back); + glEnd(); + glBegin(GL_LINES); + glVertex3f(right, top, back+i*inc); + glVertex3f(right, bottom, back+i*inc); + glEnd(); + + /* + ** Top + */ + glBegin(GL_LINES); + glVertex3f(left+i*inc, top, front); + glVertex3f(left+i*inc, top, back); + glEnd(); + glBegin(GL_LINES); + glVertex3f(right, top, back+i*inc); + glVertex3f(left, top, back+i*inc); + glEnd(); + + /* + ** Bottom + */ + glBegin(GL_LINES); + glVertex3f(right-i*inc, bottom, front); + glVertex3f(right-i*inc, bottom, back); + glEnd(); + glBegin(GL_LINES); + glVertex3f(right, bottom, back+i*inc); + glVertex3f(left, bottom, back+i*inc); + glEnd(); + } + glEndList(); +} + +void BuildCube(void) +{ + int i, j; + + glNewList(cube, GL_COMPILE); + for (i = 0; i < 6; i++) { + for (j = 0; j < 4; j++) { + glNormal3fv(n[i]); + glBegin(GL_POLYGON); + glVertex3fv(c[i][j][0]); + glVertex3fv(c[i][j][1]); + glVertex3fv(c[i][j][2]); + glVertex3fv(c[i][j][3]); + glEnd(); + } + } + glEndList(); +} + +void BuildLists(void) +{ + + cube = glGenLists(1); + BuildCube(); + + cage = glGenLists(2); + BuildCage(); + + cylinder = glGenLists(3); + BuildCylinder(60); + + torus = glGenLists(4); + BuildTorus(0.65, 20, .85, 65); + + genericObject = torus; +} + +void SetDefaultSettings(void) +{ + + magFilter = nnearest; + minFilter = nnearest; + sWrapMode = repeat; + tWrapMode = repeat; + textureEnvironment = modulate; + autoRotate = GL_TRUE; +} + +unsigned char *AlphaPadImage(int bufSize, unsigned char *inData, int alpha) +{ + unsigned char *outData, *out_ptr, *in_ptr; + int i; + + outData = (unsigned char *) malloc(bufSize * 4); + out_ptr = outData; + in_ptr = inData; + + for (i = 0; i < bufSize; i++) { + *out_ptr++ = *in_ptr++; + *out_ptr++ = *in_ptr++; + *out_ptr++ = *in_ptr++; + *out_ptr++ = alpha; + } + + free (inData); + return outData; +} + +void Init(void) +{ + float ambient[] = {0.0, 0.0, 0.0, 1.0}; + float diffuse[] = {1.0, 1.0, 1.0, 1.0}; + float specular[] = {1.0, 1.0, 1.0, 1.0}; + float position[] = {0.0, 0.0, 4.0, 0.0}; + float fog_color[] = {0.0, 0.0, 0.0, 1.0}; + float mat_ambient[] = {0.0, 0.0, 0.0, 1.0}; + float mat_shininess[] = {90.0}; + float mat_specular[] = {1.0, 1.0, 1.0, 1.0}; + float mat_diffuse[] = {0.8, 0.8, 0.8, 1.0}; + float lmodel_ambient[] = {0.2, 0.2, 0.2, 1.0}; + float lmodel_twoside[] = {GL_TRUE}; + int w, h; + GLenum format; + GLubyte *image; + + printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + + SetDefaultSettings(); + + image = LoadRGBImage(imageFileName, &w, &h, &format); + if (!image) { + printf("Error: couldn't load %s\n", imageFileName); + exit(1); + } + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + gluBuild2DMipmaps(GL_TEXTURE_2D, format, w, h, + GL_RGB, GL_UNSIGNED_BYTE, image); + + free(image); + + glFogf(GL_FOG_DENSITY, 0.125); + glFogi(GL_FOG_MODE, GL_LINEAR); + glFogf(GL_FOG_START, 4.0); + glFogf(GL_FOG_END, 8.5); + glFogfv(GL_FOG_COLOR, fog_color); + + glLightfv(GL_LIGHT0, GL_AMBIENT, ambient); + glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse); + glLightfv(GL_LIGHT0, GL_SPECULAR, specular); + glLightfv(GL_LIGHT0, GL_POSITION, position); + glEnable(GL_LIGHT0); + + glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, mat_shininess); + glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, mat_specular); + glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse); + glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, mat_ambient); + + glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient); + glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside); + glShadeModel(GL_SMOOTH); + + + glClearColor(0.0, 0.0, 0.0, 0.0); + glEnable(GL_DEPTH_TEST); + + glFrontFace(GL_CW); + glEnable(GL_CULL_FACE); + glCullFace(GL_BACK); + + glTexGeniv(GL_S, GL_TEXTURE_GEN_MODE, sphereMap); + glTexGeniv(GL_T, GL_TEXTURE_GEN_MODE, sphereMap); + glEnable(GL_TEXTURE_GEN_S); + glEnable(GL_TEXTURE_GEN_T); + + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, magFilter); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, minFilter); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, sWrapMode); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, tWrapMode); + + glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, textureEnvironment); + + BuildLists(); +} + +void ReInit(void) +{ + if (genericObject == torus) { + glEnable(GL_DEPTH_TEST); + } else { + glDisable(GL_DEPTH_TEST); + } + glEnable(GL_DEPTH_TEST); + +#if 0 + if (isFogged) { + textureEnvironment = modulate; + } +#endif + + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, magFilter); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, minFilter); + glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, textureEnvironment); +} + +void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + + /* draw cage */ + if (isFogged) + glEnable(GL_FOG); + else + glDisable(GL_FOG); + glColor3f(1, 1, 1); + glDisable(GL_LIGHTING); + glDisable(GL_TEXTURE_2D); + glCallList(cage); + + /* draw object */ + if (isLit) + glEnable(GL_LIGHTING); + else + glColor3f(1.0, 0.5, 0.2); + if (doTexture) + glEnable(GL_TEXTURE_2D); + + glPushMatrix(); + glTranslatef(0.0, 0.0, zTranslate); + glRotatef(xRotation, 1, 0, 0); + glRotatef(yRotation, 0, 1, 0); + glCallList(genericObject); + glPopMatrix(); + + glFlush(); + glutSwapBuffers(); +} + +void Reshape(int width, int height) +{ + W = width; + H = height; + ReInit(); + glViewport( 0, 0, width, height ); /*new*/ + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustum(-0.2, 0.2, -0.2, 0.2, 0.15, 9.0); + glMatrixMode(GL_MODELVIEW); +} + +void Idle(void) +{ + static double t0 = -1.; + double t, dt; + t = glutGet(GLUT_ELAPSED_TIME) / 1000.; + if (t0 < 0.) + t0 = t; + dt = t - t0; + t0 = t; + + xRotation += .75*60.*dt; + yRotation += .375*60.*dt; + glutPostRedisplay(); +} + +void Key2(int key, int x, int y) +{ + + switch (key) { + case GLUT_KEY_LEFT: + yRotation -= 0.5; + autoRotate = GL_FALSE; + ReInit(); + break; + case GLUT_KEY_RIGHT: + yRotation += 0.5; + autoRotate = GL_FALSE; + ReInit(); + break; + case GLUT_KEY_UP: + xRotation -= 0.5; + autoRotate = GL_FALSE; + ReInit(); + break; + case GLUT_KEY_DOWN: + xRotation += 0.5; + autoRotate = GL_FALSE; + ReInit(); + break; + default: + return; + } + glutPostRedisplay(); +} + +void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + /* free(image->data);*/ + exit(1); + + case 'a': + autoRotate = !autoRotate; + if (autoRotate) + glutIdleFunc(Idle); + else + glutIdleFunc(NULL); + + ReInit(); + break; + case 'o': + if (genericObject == cube) { + genericObject = cylinder; + } + else if (genericObject == cylinder) { + genericObject = torus; + } + else { + genericObject = cube; + } + ReInit(); + break; + case 'd': + textureEnvironment = decal; + ReInit(); + break; + case 'm': + textureEnvironment = modulate; + ReInit(); + break; + case 'l': + isLit = !isLit; + ReInit(); + break; + case 'f': + isFogged = !isFogged; + ReInit(); + break; + case 't': + doTexture = !doTexture; + ReInit(); + break; + case '0': + magFilter = nnearest; + ReInit(); + break; + case '1': + magFilter = linear; + ReInit(); + break; + case '2': + minFilter = nnearest; + ReInit(); + break; + case '3': + minFilter = linear; + ReInit(); + break; + case '4': + minFilter = nearest_mipmap_nearest; + ReInit(); + break; + case '5': + minFilter = nearest_mipmap_linear; + ReInit(); + break; + case '6': + minFilter = linear_mipmap_nearest; + ReInit(); + break; + case '7': + minFilter = linear_mipmap_linear; + ReInit(); + break; + default: + return; + } + glutPostRedisplay(); +} + +GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_TRUE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else if (strcmp(argv[i], "-f") == 0) { + if (i+1 >= argc || argv[i+1][0] == '-') { + printf("-f (No file name).\n"); + return GL_FALSE; + } else { + imageFileName = argv[++i]; + } + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + if (imageFileName == 0) { + printf("No image file.\n"); + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( W, H); + + type = GLUT_RGB | GLUT_DEPTH; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Texture Test") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutSpecialFunc(Key2); + glutDisplayFunc(Draw); + glutIdleFunc(Idle); + + glutMainLoop(); + return 0; +} diff --git a/progs/samples/star.c b/progs/samples/star.c new file mode 100644 index 00000000000..2cf470e2a2f --- /dev/null +++ b/progs/samples/star.c @@ -0,0 +1,345 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <math.h> +#include <GL/glut.h> + + +#ifndef PI +#define PI 3.141592657 +#endif + +enum { + NORMAL = 0, + WEIRD = 1 +}; + +enum { + STREAK = 0, + CIRCLE = 1 +}; + +#define MAXSTARS 400 +#define MAXPOS 10000 +#define MAXWARP 500 +#define MAXANGLES 6000 + + +typedef struct _starRec { + GLint type; + float x[2], y[2], z[2]; + float offsetX, offsetY, offsetR, rotation; +} starRec; + + +GLenum doubleBuffer; +GLint windW, windH; + +GLenum flag = NORMAL; +GLint starCount = MAXSTARS / 2; +float speed = 1.0; +GLint nitro = 0; +starRec stars[MAXSTARS]; +float sinTable[MAXANGLES]; + + +float Sin(float angle) +{ + + return (sinTable[(GLint)angle]); +} + +float Cos(float angle) +{ + + return (sinTable[((GLint)angle+(MAXANGLES/4))%MAXANGLES]); +} + +void NewStar(GLint n, GLint d) +{ + + if (rand()%4 == 0) { + stars[n].type = CIRCLE; + } else { + stars[n].type = STREAK; + } + stars[n].x[0] = (float)(rand() % MAXPOS - MAXPOS / 2); + stars[n].y[0] = (float)(rand() % MAXPOS - MAXPOS / 2); + stars[n].z[0] = (float)(rand() % MAXPOS + d); + if (rand()%4 == 0 && flag == WEIRD) { + stars[n].offsetX = (float)(rand() % 100 - 100 / 2); + stars[n].offsetY = (float)(rand() % 100 - 100 / 2); + stars[n].offsetR = (float)(rand() % 25 - 25 / 2); + } else { + stars[n].offsetX = 0.0; + stars[n].offsetY = 0.0; + stars[n].offsetR = 0.0; + } +} + +void RotatePoint(float *x, float *y, float rotation) +{ + float tmpX, tmpY; + + tmpX = *x * Cos(rotation) - *y * Sin(rotation); + tmpY = *y * Cos(rotation) + *x * Sin(rotation); + *x = tmpX; + *y = tmpY; +} + +void MoveStars(void) +{ + float offset; + GLint n; + static double t0 = -1.; + double t, dt; + t = glutGet(GLUT_ELAPSED_TIME) / 1000.; + if (t0 < 0.) + t0 = t; + dt = 85.*(t - t0); + t0 = t; + + offset = speed * 60.0; + + for (n = 0; n < starCount; n++) { + stars[n].x[1] = stars[n].x[0]; + stars[n].y[1] = stars[n].y[0]; + stars[n].z[1] = stars[n].z[0]; + stars[n].x[0] += stars[n].offsetX*dt; + stars[n].y[0] += stars[n].offsetY*dt; + stars[n].z[0] -= offset*dt; + stars[n].rotation += stars[n].offsetR*dt; + if (stars[n].rotation > MAXANGLES) { + stars[n].rotation = 0.0; + } + else if (stars[n].rotation < 0.0) { + stars[n].rotation += 360.0; + } + } +} + +GLenum StarPoint(GLint n) +{ + float x0, y0, x1, y1, width; + GLint i; + + x0 = stars[n].x[0] * windW / stars[n].z[0]; + y0 = stars[n].y[0] * windH / stars[n].z[0]; + RotatePoint(&x0, &y0, stars[n].rotation); + x0 += windW / 2.0; + y0 += windH / 2.0; + + if (x0 >= 0.0 && x0 < windW && y0 >= 0.0 && y0 < windH) { + if (stars[n].type == STREAK) { + x1 = stars[n].x[1] * windW / stars[n].z[1]; + y1 = stars[n].y[1] * windH / stars[n].z[1]; + RotatePoint(&x1, &y1, stars[n].rotation); + x1 += windW / 2.0; + y1 += windH / 2.0; + + glLineWidth(MAXPOS/100.0/stars[n].z[0]+1.0); + glColor3f(1.0, (MAXWARP-speed)/MAXWARP, (MAXWARP-speed)/MAXWARP); + if (fabs(x0-x1) < 1.0 && fabs(y0-y1) < 1.0) { + glBegin(GL_POINTS); + glVertex2f(x0, y0); + glEnd(); + } else { + glBegin(GL_LINES); + glVertex2f(x0, y0); + glVertex2f(x1, y1); + glEnd(); + } + } else { + width = MAXPOS / 10.0 / stars[n].z[0] + 1.0; + glColor3f(1.0, 0.0, 0.0); + glBegin(GL_POLYGON); + for (i = 0; i < 8; i++) { + float x = x0 + width * Cos((float)i*MAXANGLES/8.0); + float y = y0 + width * Sin((float)i*MAXANGLES/8.0); + glVertex2f(x, y); + }; + glEnd(); + } + return GL_TRUE; + } else { + return GL_FALSE; + } +} + +void ShowStars(void) +{ + GLint n; + + glClear(GL_COLOR_BUFFER_BIT); + + for (n = 0; n < starCount; n++) { + if (stars[n].z[0] > speed || (stars[n].z[0] > 0.0 && speed < MAXWARP)) { + if (StarPoint(n) == GL_FALSE) { + NewStar(n, MAXPOS); + } + } else { + NewStar(n, MAXPOS); + } + } +} + +static void Init(void) +{ + float angle; + GLint n; + + srand((unsigned int) glutGet(GLUT_ELAPSED_TIME) ); + + for (n = 0; n < MAXSTARS; n++) { + NewStar(n, 100); + } + + angle = 0.0; + for (n = 0; n < MAXANGLES ; n++) { + sinTable[n] = sin(angle); + angle += PI / (MAXANGLES / 2.0); + } + + glClearColor(0.0, 0.0, 0.0, 0.0); + + glDisable(GL_DITHER); +} + +void Reshape(int width, int height) +{ + + windW = (GLint)width; + windH = (GLint)height; + + glViewport(0, 0, windW, windH); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(-0.5, windW+0.5, -0.5, windH+0.5); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case 32: + flag = (flag == NORMAL) ? WEIRD : NORMAL; + break; + case 't': + nitro = 1; + break; + default: + return; + } +} + +void Draw(void) +{ + + MoveStars(); + ShowStars(); + if (nitro > 0) { + speed = (float)(nitro / 10) + 1.0; + if (speed > MAXWARP) { + speed = MAXWARP; + } + if (++nitro > MAXWARP*10) { + nitro = -nitro; + } + } else if (nitro < 0) { + nitro++; + speed = (float)(-nitro / 10) + 1.0; + if (speed > MAXWARP) { + speed = MAXWARP; + } + } + + glFlush(); + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_TRUE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } + } + return GL_TRUE; +} + +#if !defined(GLUTCALLBACK) +#define GLUTCALLBACK +#endif + +void GLUTCALLBACK glut_post_redisplay_p(void) +{ + glutPostRedisplay(); +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + windW = 300; + windH = 300; + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Stars") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutIdleFunc(glut_post_redisplay_p); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/stencil.c b/progs/samples/stencil.c new file mode 100644 index 00000000000..e00bbb61b0d --- /dev/null +++ b/progs/samples/stencil.c @@ -0,0 +1,143 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> +#include <GL/glut.h> + + +static void Init(void) +{ + glShadeModel(GL_FLAT); + glClearColor(0.0, 0.0, 0.0, 0.0); + + glClearStencil(0); + glStencilMask(1); + glEnable(GL_STENCIL_TEST); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-5.0, 5.0, -5.0, 5.0, -5.0, 5.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + } +} + +static void Draw(void) +{ + + glClear(GL_COLOR_BUFFER_BIT|GL_STENCIL_BUFFER_BIT); + + glStencilFunc(GL_ALWAYS, 1, 1); + glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE); + + glColor3ub(200, 0, 0); + glBegin(GL_POLYGON); + glVertex3i(-4, -4, 0); + glVertex3i( 4, -4, 0); + glVertex3i( 0, 4, 0); + glEnd(); + + glStencilFunc(GL_EQUAL, 1, 1); + glStencilOp(GL_INCR, GL_KEEP, GL_DECR); + + glColor3ub(0, 200, 0); + glBegin(GL_POLYGON); + glVertex3i(3, 3, 0); + glVertex3i(-3, 3, 0); + glVertex3i(-3, -3, 0); + glVertex3i(3, -3, 0); + glEnd(); + + glStencilFunc(GL_EQUAL, 1, 1); + glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP); + + glColor3ub(0, 0, 200); + glBegin(GL_POLYGON); + glVertex3i(3, 3, 0); + glVertex3i(-3, 3, 0); + glVertex3i(-3, -3, 0); + glVertex3i(3, -3, 0); + glEnd(); + + glFlush(); +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-dr") == 0) { + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + type = GLUT_RGB | GLUT_SINGLE | GLUT_STENCIL; + glutInitDisplayMode(type); + + if (glutCreateWindow("Stencil Test") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/stretch.c b/progs/samples/stretch.c new file mode 100644 index 00000000000..1fd015d794a --- /dev/null +++ b/progs/samples/stretch.c @@ -0,0 +1,390 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> +#include <GL/glut.h> + + +#define STEPCOUNT 40 +#define FALSE 0 +#define TRUE 1 +#define MAX(a, b) (((a) > (b)) ? (a) : (b)) +#define MIN(a, b) (((a) < (b)) ? (a) : (b)) + + +enum { + OP_NOOP = 0, + OP_STRETCH, + OP_DRAWPOINT, + OP_DRAWIMAGE +}; + + +typedef struct _cRec { + float x, y; +} cRec; + +typedef struct _vertexRec { + float x, y; + float dX, dY; + float tX, tY; +} vertexRec; + + +#include "loadppm.c" + +GLenum doubleBuffer; +int imageSizeX, imageSizeY; +char *fileName = 0; +PPMImage *image; +cRec cList[50]; +vertexRec vList[5]; +int cCount, cIndex[2], cStep; +GLenum op = OP_NOOP; + + +void DrawImage(void) +{ + + glRasterPos2i(0, 0); + glDrawPixels(image->sizeX, image->sizeY, GL_RGB, GL_UNSIGNED_BYTE, + image->data); + + glFlush(); + if (doubleBuffer) { + glutSwapBuffers(); + } + + glRasterPos2i(0, 0); + glDrawPixels(image->sizeX, image->sizeY, GL_RGB, GL_UNSIGNED_BYTE, + image->data); +} + +void DrawPoint(void) +{ + int i; + + glColor3f(1.0, 0.0, 1.0); + glPointSize(3.0); + glBegin(GL_POINTS); + for (i = 0; i < cCount; i++) { + glVertex2f(cList[i].x, cList[i].y); + } + glEnd(); + + glFlush(); + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +void InitVList(void) +{ + + vList[0].x = 0.0; + vList[0].y = 0.0; + vList[0].dX = 0.0; + vList[0].dY = 0.0; + vList[0].tX = 0.0; + vList[0].tY = 0.0; + + vList[1].x = (float)imageSizeX; + vList[1].y = 0.0; + vList[1].dX = 0.0; + vList[1].dY = 0.0; + vList[1].tX = 1.0; + vList[1].tY = 0.0; + + vList[2].x = (float)imageSizeX; + vList[2].y = (float)imageSizeY; + vList[2].dX = 0.0; + vList[2].dY = 0.0; + vList[2].tX = 1.0; + vList[2].tY = 1.0; + + vList[3].x = 0.0; + vList[3].y = (float)imageSizeY; + vList[3].dX = 0.0; + vList[3].dY = 0.0; + vList[3].tX = 0.0; + vList[3].tY = 1.0; + + vList[4].x = cList[0].x; + vList[4].y = cList[0].y; + vList[4].dX = (cList[1].x - cList[0].x) / STEPCOUNT; + vList[4].dY = (cList[1].y - cList[0].y) / STEPCOUNT; + vList[4].tX = cList[0].x / (float)imageSizeX; + vList[4].tY = cList[0].y / (float)imageSizeY; +} + +void ScaleImage(int sizeX, int sizeY) +{ + GLubyte *buf; + + buf = (GLubyte *)malloc(3*sizeX*sizeY); + gluScaleImage(GL_RGB, image->sizeX, image->sizeY, GL_UNSIGNED_BYTE, + image->data, sizeX, sizeY, GL_UNSIGNED_BYTE, buf); + free(image->data); + image->data = buf; + image->sizeX = sizeX; + image->sizeY = sizeY; +} + +void SetPoint(int x, int y) +{ + + cList[cCount].x = (float)x; + cList[cCount].y = (float)y; + cCount++; +} + +void Stretch(void) +{ + + glBegin(GL_TRIANGLES); + glTexCoord2f(vList[0].tX, vList[0].tY); + glVertex2f(vList[0].x, vList[0].y); + glTexCoord2f(vList[1].tX, vList[1].tY); + glVertex2f(vList[1].x, vList[1].y); + glTexCoord2f(vList[4].tX, vList[4].tY); + glVertex2f(vList[4].x, vList[4].y); + glEnd(); + + glBegin(GL_TRIANGLES); + glTexCoord2f(vList[1].tX, vList[1].tY); + glVertex2f(vList[1].x, vList[1].y); + glTexCoord2f(vList[2].tX, vList[2].tY); + glVertex2f(vList[2].x, vList[2].y); + glTexCoord2f(vList[4].tX, vList[4].tY); + glVertex2f(vList[4].x, vList[4].y); + glEnd(); + + glBegin(GL_TRIANGLES); + glTexCoord2f(vList[2].tX, vList[2].tY); + glVertex2f(vList[2].x, vList[2].y); + glTexCoord2f(vList[3].tX, vList[3].tY); + glVertex2f(vList[3].x, vList[3].y); + glTexCoord2f(vList[4].tX, vList[4].tY); + glVertex2f(vList[4].x, vList[4].y); + glEnd(); + + glBegin(GL_TRIANGLES); + glTexCoord2f(vList[3].tX, vList[3].tY); + glVertex2f(vList[3].x, vList[3].y); + glTexCoord2f(vList[0].tX, vList[0].tY); + glVertex2f(vList[0].x, vList[0].y); + glTexCoord2f(vList[4].tX, vList[4].tY); + glVertex2f(vList[4].x, vList[4].y); + glEnd(); + + glFlush(); + if (doubleBuffer) { + glutSwapBuffers(); + } + + if (++cStep < STEPCOUNT) { + vList[4].x += vList[4].dX; + vList[4].y += vList[4].dY; + } else { + cIndex[0] = cIndex[1]; + cIndex[1] = cIndex[1] + 1; + if (cIndex[1] == cCount) { + cIndex[1] = 0; + } + vList[4].dX = (cList[cIndex[1]].x - cList[cIndex[0]].x) / STEPCOUNT; + vList[4].dY = (cList[cIndex[1]].y - cList[cIndex[0]].y) / STEPCOUNT; + cStep = 0; + } +} + +void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + free(image->data); + exit(1); + case 32: + if (cCount > 1) { + InitVList(); + cIndex[0] = 0; + cIndex[1] = 1; + cStep = 0; + glEnable(GL_TEXTURE_2D); + op = OP_STRETCH; + } + break; + default: + return; + } + + glutPostRedisplay(); +} + +void Mouse(int button, int state, int mouseX, int mouseY) +{ + + if (state != GLUT_DOWN) + return; + + if (op == OP_STRETCH) { + glDisable(GL_TEXTURE_2D); + cCount = 0; + op = OP_DRAWIMAGE; + } else { + SetPoint(mouseX, imageSizeY-mouseY); + op = OP_DRAWPOINT; + } + + glutPostRedisplay(); +} + +void Animate(void) +{ + static double t0 = -1.; + double t, dt; + t = glutGet(GLUT_ELAPSED_TIME) / 1000.; + if (t0 < 0.) + t0 = t; + dt = t - t0; + + if (dt < 1./60.) + return; + + t0 = t; + + switch (op) { + case OP_STRETCH: + Stretch(); + break; + case OP_DRAWPOINT: + DrawPoint(); + break; + case OP_DRAWIMAGE: + DrawImage(); + break; + default: + break; + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_TRUE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else if (strcmp(argv[i], "-f") == 0) { + if (i+1 >= argc || argv[i+1][0] == '-') { + printf("-f (No file name).\n"); + return GL_FALSE; + } else { + fileName = argv[++i]; + } + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +#if !defined(GLUTCALLBACK) +#define GLUTCALLBACK +#endif + +void GLUTCALLBACK glut_post_redisplay_p(void) +{ + glutPostRedisplay(); +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + if (fileName == 0) { + printf("No image file.\n"); + exit(1); + } + + image = LoadPPM(fileName); + + /* changed powf and logf to pow and log -Brian */ + imageSizeX = (int)pow(2.0, (float)((int)(log(image->sizeX)/log(2.0)))); + imageSizeY = (int)pow(2.0, (float)((int)(log(image->sizeY)/log(2.0)))); + + glutInitWindowPosition(0, 0); glutInitWindowSize( imageSizeX, imageSizeY); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Stretch") == GL_FALSE) { + exit(1); + } + + glViewport(0, 0, imageSizeX, imageSizeY); + gluOrtho2D(0, imageSizeX, 0, imageSizeY); + glClearColor(0.0, 0.0, 0.0, 0.0); + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glPixelStorei(GL_PACK_ALIGNMENT, 1); + + ScaleImage(imageSizeX, imageSizeY); + + glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexImage2D(GL_TEXTURE_2D, 0, 3, image->sizeX, image->sizeY, 0, + GL_RGB, GL_UNSIGNED_BYTE, (unsigned char *)image->data); + + cCount = 0; + cIndex[0] = 0; + cIndex[1] = 0; + cStep = 0; + op = OP_DRAWIMAGE; + + glutKeyboardFunc(Key); + glutMouseFunc(Mouse); + glutDisplayFunc(Animate); + glutIdleFunc(glut_post_redisplay_p); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/texture.c b/progs/samples/texture.c new file mode 100644 index 00000000000..7ee41eef28b --- /dev/null +++ b/progs/samples/texture.c @@ -0,0 +1,474 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <math.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#include "loadppm.c" + +GLenum doubleBuffer; + +char *texFileName = 0; +PPMImage *image; + +float *minFilter, *magFilter, *sWrapMode, *tWrapMode; +float decal[] = {GL_DECAL}; +float modulate[] = {GL_MODULATE}; +float repeat[] = {GL_REPEAT}; +float clamp[] = {GL_CLAMP}; +float nr[] = {GL_NEAREST}; +float ln[] = {GL_LINEAR}; +float nr_mipmap_nr[] = {GL_NEAREST_MIPMAP_NEAREST}; +float nr_mipmap_ln[] = {GL_NEAREST_MIPMAP_LINEAR}; +float ln_mipmap_nr[] = {GL_LINEAR_MIPMAP_NEAREST}; +float ln_mipmap_ln[] = {GL_LINEAR_MIPMAP_LINEAR}; +GLint sphereMap[] = {GL_SPHERE_MAP}; + +GLenum doSphere = GL_FALSE; +float xRotation = 0.0, yRotation = 0.0, zTranslate = -3.125; + +GLint cube; +float c[6][4][3] = { + { + { + 1.0, 1.0, -1.0 + }, + { + -1.0, 1.0, -1.0 + }, + { + -1.0, -1.0, -1.0 + }, + { + 1.0, -1.0, -1.0 + } + }, + { + { + 1.0, 1.0, 1.0 + }, + { + 1.0, 1.0, -1.0 + }, + { + 1.0, -1.0, -1.0 + }, + { + 1.0, -1.0, 1.0 + } + }, + { + { + -1.0, 1.0, 1.0 + }, + { + 1.0, 1.0, 1.0 + }, + { + 1.0, -1.0, 1.0 + }, + { + -1.0, -1.0, 1.0 + } + }, + { + { + -1.0, 1.0, -1.0 + }, + { + -1.0, 1.0, 1.0 + }, + { + -1.0, -1.0, 1.0 + }, + { + -1.0, -1.0, -1.0 + } + }, + { + { + -1.0, 1.0, 1.0 + }, + { + -1.0, 1.0, -1.0 + }, + { + 1.0, 1.0, -1.0 + }, + { + 1.0, 1.0, 1.0 + } + }, + { + { + -1.0, -1.0, -1.0 + }, + { + -1.0, -1.0, 1.0 + }, + { + 1.0, -1.0, 1.0 + }, + { + 1.0, -1.0, -1.0 + } + } +}; +static float n[6][3] = { + { + 0.0, 0.0, -1.0 + }, + { + 1.0, 0.0, 0.0 + }, + { + 0.0, 0.0, 1.0 + }, + { + -1.0, 0.0, 0.0 + }, + { + 0.0, 1.0, 0.0 + }, + { + 0.0, -1.0, 0.0 + } +}; +static float t[6][4][2] = { + { + { + 1.1, 1.1 + }, + { + -0.1, 1.1 + }, + { + -0.1, -0.1 + }, + { + 1.1, -0.1 + } + }, + { + { + 1.1, 1.1 + }, + { + -0.1, 1.1 + }, + { + -0.1, -0.1 + }, + { + 1.1, -0.1 + } + }, + { + { + -0.1, 1.1 + }, + { + 1.1, 1.1 + }, + { + 1.1, -0.1 + }, + { + -0.1, -0.1 + } + }, + { + { + 1.1, 1.1 + }, + { + -0.1, 1.1 + }, + { + -0.1, -0.1 + }, + { + 1.1, -0.1 + } + }, + { + { + 1.1, 1.1 + }, + { + -0.1, 1.1 + }, + { + -0.1, -0.1 + }, + { + 1.1, -0.1 + } + }, + { + { + 1.1, 1.1 + }, + { + -0.1, 1.1 + }, + { + -0.1, -0.1 + }, + { + 1.1, -0.1 + } + }, +}; + +static void BuildCube(void) +{ + GLint i; + + glNewList(cube, GL_COMPILE); + for (i = 0; i < 6; i++) { + glBegin(GL_POLYGON); + glNormal3fv(n[i]); glTexCoord2fv(t[i][0]); glVertex3fv(c[i][0]); + glNormal3fv(n[i]); glTexCoord2fv(t[i][1]); glVertex3fv(c[i][1]); + glNormal3fv(n[i]); glTexCoord2fv(t[i][2]); glVertex3fv(c[i][2]); + glNormal3fv(n[i]); glTexCoord2fv(t[i][3]); glVertex3fv(c[i][3]); + glEnd(); + } + glEndList(); +} + +static void BuildLists(void) +{ + + cube = glGenLists(1); + BuildCube(); +} + +static void Init(void) +{ + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + gluBuild2DMipmaps(GL_TEXTURE_2D, 3, image->sizeX, image->sizeY, + GL_RGB, GL_UNSIGNED_BYTE, image->data); + glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, decal); + glEnable(GL_TEXTURE_2D); + + glFrontFace(GL_CCW); + glCullFace(GL_FRONT); + glEnable(GL_CULL_FACE); + + BuildLists(); + + glClearColor(0.0, 0.0, 0.0, 0.0); + + magFilter = nr; + minFilter = nr; + sWrapMode = repeat; + tWrapMode = repeat; +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluPerspective(145.0, 1.0, 0.01, 1000); + glMatrixMode(GL_MODELVIEW); +} + +static void Key2(int key, int x, int y) +{ + + switch (key) { + case GLUT_KEY_LEFT: + yRotation -= 0.5; + break; + case GLUT_KEY_RIGHT: + yRotation += 0.5; + break; + case GLUT_KEY_UP: + xRotation -= 0.5; + break; + case GLUT_KEY_DOWN: + xRotation += 0.5; + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + + case 'T': + zTranslate += 0.25; + break; + case 't': + zTranslate -= 0.25; + break; + + case 's': + doSphere = !doSphere; + if (doSphere) { + glTexGeniv(GL_S, GL_TEXTURE_GEN_MODE, sphereMap); + glTexGeniv(GL_T, GL_TEXTURE_GEN_MODE, sphereMap); + glEnable(GL_TEXTURE_GEN_S); + glEnable(GL_TEXTURE_GEN_T); + } else { + glDisable(GL_TEXTURE_GEN_S); + glDisable(GL_TEXTURE_GEN_T); + } + break; + + case '0': + magFilter = nr; + break; + case '1': + magFilter = ln; + break; + case '2': + minFilter = nr; + break; + case '3': + minFilter = ln; + break; + case '4': + minFilter = nr_mipmap_nr; + break; + case '5': + minFilter = nr_mipmap_ln; + break; + case '6': + minFilter = ln_mipmap_nr; + break; + case '7': + minFilter = ln_mipmap_ln; + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + + glClear(GL_COLOR_BUFFER_BIT); + + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, sWrapMode); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, tWrapMode); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, magFilter); + glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, minFilter); + + glPushMatrix(); + + glTranslatef(0.0, 0.0, zTranslate); + glRotatef(xRotation, 1, 0, 0); + glRotatef(yRotation, 0, 1, 0); + glCallList(cube); + + glPopMatrix(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else if (strcmp(argv[i], "-f") == 0) { + if (i+1 >= argc || argv[i+1][0] == '-') { + printf("-f (No file name).\n"); + return GL_FALSE; + } else { + texFileName = argv[++i]; + } + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + if (texFileName == 0) { + printf("No image file.\n"); + exit(1); + } + + image = LoadPPM(texFileName); + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Texture Test") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutSpecialFunc(Key2); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/tkmap.c b/progs/samples/tkmap.c new file mode 100644 index 00000000000..3ded79cacaa --- /dev/null +++ b/progs/samples/tkmap.c @@ -0,0 +1,71 @@ + +enum { + COLOR_BLACK = 0, + COLOR_RED, + COLOR_GREEN, + COLOR_YELLOW, + COLOR_BLUE, + COLOR_MAGENTA, + COLOR_CYAN, + COLOR_WHITE +}; + +static float RGBMap[9][3] = { + {0, 0, 0}, + {1, 0, 0}, + {0, 1, 0}, + {1, 1, 0}, + {0, 0, 1}, + {1, 0, 1}, + {0, 1, 1}, + {1, 1, 1}, + {0.5, 0.5, 0.5} +}; + +static void SetColor(int c) +{ + if (glutGet(GLUT_WINDOW_RGBA)) + glColor3fv(RGBMap[c]); + else + glIndexf(c); +} + +static void InitMap(void) +{ + int i; + + if (rgb) + return; + + for (i = 0; i < 9; i++) + glutSetColor(i, RGBMap[i][0], RGBMap[i][1], RGBMap[i][2]); +} + +static void SetFogRamp(int density, int startIndex) +{ + int fogValues, colorValues; + int i, j, k; + float intensity; + + fogValues = 1 << density; + colorValues = 1 << startIndex; + for (i = 0; i < colorValues; i++) { + for (j = 0; j < fogValues; j++) { + k = i * fogValues + j; + intensity = (i * fogValues + j * colorValues) / 255.0; + glutSetColor(k, intensity, intensity, intensity); + } + } +} + +static void SetGreyRamp(void) +{ + int i; + float intensity; + + for (i = 0; i < 255; i++) { + intensity = i / 255.0; + glutSetColor(i, intensity, intensity, intensity); + } +} + diff --git a/progs/samples/tri.c b/progs/samples/tri.c new file mode 100644 index 00000000000..700325132ef --- /dev/null +++ b/progs/samples/tri.c @@ -0,0 +1,403 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define SOLID 1 +#define LINE 2 +#define POINT 3 + + +GLenum rgb, doubleBuffer, windType; +GLint windW, windH; + +GLenum dithering = GL_TRUE; +GLenum showVerticies = GL_TRUE; +GLenum hideBottomTriangle = GL_FALSE; +GLenum outline = GL_TRUE; +GLenum culling = GL_FALSE; +GLenum winding = GL_FALSE; +GLenum face = GL_FALSE; +GLenum state = SOLID; +GLenum aaMode = GL_FALSE; +GLenum shade = GL_TRUE; + +GLint color1, color2, color3; + +float zRotation = 90.0; +float zoom = 1.0; + +float boxA[3] = {-100, -100, 0}; +float boxB[3] = { 100, -100, 0}; +float boxC[3] = { 100, 100, 0}; +float boxD[3] = {-100, 100, 0}; + +float p0[3] = {-125,-80, 0}; +float p1[3] = {-125, 80, 0}; +float p2[3] = { 172, 0, 0}; + + +#include "tkmap.c" + +static void Init(void) +{ + float r, g, b; + float percent1, percent2; + GLint i, j; + + glClearColor(0.0, 0.0, 0.0, 0.0); + + glLineStipple(1, 0xF0F0); + + glEnable(GL_SCISSOR_TEST); + + if (!rgb) { + for (j = 0; j <= 12; j++) { + if (j <= 6) { + percent1 = j / 6.0; + r = 1.0 - 0.8 * percent1; + g = 0.2 + 0.8 * percent1; + b = 0.2; + } else { + percent1 = (j - 6) / 6.0; + r = 0.2; + g = 1.0 - 0.8 * percent1; + b = 0.2 + 0.8 * percent1; + } + glutSetColor(j+18, r, g, b); + for (i = 0; i < 16; i++) { + percent2 = i / 15.0; + glutSetColor(j*16+1+32, r*percent2, g*percent2, b*percent2); + } + } + color1 = 18; + color2 = 24; + color3 = 30; + } +} + +static void Reshape(int width, int height) +{ + + windW = (GLint)width; + windH = (GLint)height; +} + +static void Key2(int key, int x, int y) +{ + + switch (key) { + case GLUT_KEY_LEFT: + zRotation += 0.5; + break; + case GLUT_KEY_RIGHT: + zRotation -= 0.5; + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case 'Z': + zoom *= 0.75; + break; + case 'z': + zoom /= 0.75; + if (zoom > 10) { + zoom = 10; + } + break; + case '1': + glPolygonMode(GL_FRONT_AND_BACK, GL_POINT); + break; + case '2': + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); + break; + case '3': + glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); + break; + case '4': + state = POINT; + break; + case '5': + state = LINE; + break; + case '6': + state = SOLID; + break; + case '7': + culling = !culling; + break; + case '8': + winding = !winding; + break; + case '9': + face = !face; + break; + case 'v': + showVerticies = !showVerticies; + break; + case 's': + shade = !shade; + (shade) ? glShadeModel(GL_SMOOTH) : glShadeModel(GL_FLAT); + break; + case 'h': + hideBottomTriangle = !hideBottomTriangle; + break; + case 'o': + outline = !outline; + break; + case 'm': + dithering = !dithering; + break; + case '0': + aaMode = !aaMode; + if (aaMode) { + glEnable(GL_POLYGON_SMOOTH); + glEnable(GL_BLEND); + glBlendFunc(GL_SRC_ALPHA, GL_ONE); + if (!rgb) { + color1 = 32; + color2 = 128; + color3 = 224; + } + } else { + glDisable(GL_POLYGON_SMOOTH); + glDisable(GL_BLEND); + if (!rgb) { + color1 = 18; + color2 = 24; + color3 = 30; + } + } + break; + default: + return; + } + + glutPostRedisplay(); +} + +static void BeginPrim(void) +{ + + switch (state) { + case SOLID: + glBegin(GL_POLYGON); + break; + case LINE: + glBegin(GL_LINE_LOOP); + break; + case POINT: + glBegin(GL_POINTS); + break; + default: + break; + } +} + +static void EndPrim(void) +{ + + glEnd(); +} + +static void Draw(void) +{ + float scaleX, scaleY; + + glViewport(0, 0, windW, windH); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(-175, 175, -175, 175); + glMatrixMode(GL_MODELVIEW); + + glScissor(0, 0, windW, windH); + + (culling) ? glEnable(GL_CULL_FACE) : glDisable(GL_CULL_FACE); + (winding) ? glFrontFace(GL_CCW) : glFrontFace(GL_CW); + (face) ? glCullFace(GL_FRONT) : glCullFace(GL_BACK); + + (dithering) ? glEnable(GL_DITHER) : glDisable(GL_DITHER); + + glClear(GL_COLOR_BUFFER_BIT); + + SetColor(COLOR_GREEN); + glBegin(GL_LINE_LOOP); + glVertex3fv(boxA); + glVertex3fv(boxB); + glVertex3fv(boxC); + glVertex3fv(boxD); + glEnd(); + + if (!hideBottomTriangle) { + glPushMatrix(); + + glScalef(zoom, zoom, zoom); + glRotatef(zRotation, 0, 0, 1); + + SetColor(COLOR_BLUE); + BeginPrim(); + glVertex3fv(p0); + glVertex3fv(p1); + glVertex3fv(p2); + EndPrim(); + + if (showVerticies) { + (rgb) ? glColor3fv(RGBMap[COLOR_RED]) : glIndexf(color1); + glRectf(p0[0]-2, p0[1]-2, p0[0]+2, p0[1]+2); + (rgb) ? glColor3fv(RGBMap[COLOR_GREEN]) : glIndexf(color2); + glRectf(p1[0]-2, p1[1]-2, p1[0]+2, p1[1]+2); + (rgb) ? glColor3fv(RGBMap[COLOR_BLUE]) : glIndexf(color3); + glRectf(p2[0]-2, p2[1]-2, p2[0]+2, p2[1]+2); + } + + glPopMatrix(); + } + + scaleX = (float)(windW - 20) / 2 / 175 * (175 - 100) + 10; + scaleY = (float)(windH - 20) / 2 / 175 * (175 - 100) + 10; + + glViewport(scaleX, scaleY, windW-2*scaleX, windH-2*scaleY); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(-100, 100, -100, 100); + glMatrixMode(GL_MODELVIEW); + + glScissor(scaleX, scaleY, windW-2*scaleX, windH-2*scaleY); + + glPushMatrix(); + + glScalef(zoom, zoom, zoom); + glRotatef(zRotation, 0,0,1); + + glPointSize(10); + glLineWidth(5); + glEnable(GL_POINT_SMOOTH); + glEnable(GL_LINE_STIPPLE); + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + + SetColor(COLOR_RED); + BeginPrim(); + (rgb) ? glColor3fv(RGBMap[COLOR_RED]) : glIndexf(color1); + glVertex3fv(p0); + (rgb) ? glColor3fv(RGBMap[COLOR_GREEN]) : glIndexf(color2); + glVertex3fv(p1); + (rgb) ? glColor3fv(RGBMap[COLOR_BLUE]) : glIndexf(color3); + glVertex3fv(p2); + EndPrim(); + + glPointSize(1); + glLineWidth(1); + glDisable(GL_POINT_SMOOTH); + glDisable(GL_LINE_STIPPLE); + glBlendFunc(GL_ONE, GL_ZERO); + + if (outline) { + SetColor(COLOR_WHITE); + glBegin(GL_LINE_LOOP); + glVertex3fv(p0); + glVertex3fv(p1); + glVertex3fv(p2); + glEnd(); + } + + glPopMatrix(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + windW = 600; + windH = 300; + glutInitWindowPosition(0, 0); glutInitWindowSize( windW, windH); + + windType = (rgb) ? GLUT_RGB : GLUT_INDEX; + windType |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(windType); + + if (glutCreateWindow("Triangle Test") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutSpecialFunc(Key2); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/samples/wave.c b/progs/samples/wave.c new file mode 100644 index 00000000000..d3c4687459e --- /dev/null +++ b/progs/samples/wave.c @@ -0,0 +1,619 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <math.h> +#include <GL/glut.h> + +#ifndef PI +#define PI 3.14159265358979323846 +#endif + +#define GETCOORD(frame, x, y) (&(theMesh.coords[frame*theMesh.numCoords+(x)+(y)*(theMesh.widthX+1)])) +#define GETFACET(frame, x, y) (&(theMesh.facets[frame*theMesh.numFacets+(x)+(y)*theMesh.widthX])) + + +GLenum rgb, doubleBuffer; + +#include "tkmap.c" + +GLint colorIndexes1[3]; +GLint colorIndexes2[3]; +GLenum clearMask = GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT; + +GLenum smooth = GL_FALSE; +GLenum lighting = GL_TRUE; +GLenum depth = GL_TRUE; +GLenum stepMode = GL_FALSE; +GLenum spinMode = GL_FALSE; +GLint contouring = 0; + +GLint widthX, widthY; +GLint checkerSize; +float height; + +GLint frames, curFrame = 0, nextFrame = 0; + +struct facet { + float color[3]; + float normal[3]; +}; +struct coord { + float vertex[3]; + float normal[3]; +}; +struct mesh { + GLint widthX, widthY; + GLint numFacets; + GLint numCoords; + GLint frames; + struct coord *coords; + struct facet *facets; +} theMesh; + +GLubyte contourTexture1[] = { + 255, 255, 255, 255, + 255, 255, 255, 255, + 255, 255, 255, 255, + 127, 127, 127, 127, +}; +GLubyte contourTexture2[] = { + 255, 255, 255, 255, + 255, 127, 127, 127, + 255, 127, 127, 127, + 255, 127, 127, 127, +}; + +#if !defined(GLUTCALLBACK) +#define GLUTCALLBACK +#endif + + +void GLUTCALLBACK glut_post_redisplay_p(void) +{ + static double t0 = -1.; + double t, dt; + t = glutGet(GLUT_ELAPSED_TIME) / 1000.; + if (t0 < 0.) + t0 = t; + dt = t - t0; + + if (dt < 1./30.) + return; + + t0 = t; + + glutPostRedisplay(); +} + +static void Animate(void) +{ + struct coord *coord; + struct facet *facet; + float *lastColor; + float *thisColor; + GLint i, j; + + glClear(clearMask); + + if (nextFrame || !stepMode) { + curFrame++; + } + if (curFrame >= theMesh.frames) { + curFrame = 0; + } + + if ((nextFrame || !stepMode) && spinMode) { + glRotatef(5.0, 0.0, 0.0, 1.0); + } + nextFrame = 0; + + for (i = 0; i < theMesh.widthX; i++) { + glBegin(GL_QUAD_STRIP); + lastColor = NULL; + for (j = 0; j < theMesh.widthY; j++) { + facet = GETFACET(curFrame, i, j); + if (!smooth && lighting) { + glNormal3fv(facet->normal); + } + if (lighting) { + if (rgb) { + thisColor = facet->color; + glColor3fv(facet->color); + } else { + thisColor = facet->color; + glMaterialfv(GL_FRONT_AND_BACK, GL_COLOR_INDEXES, + facet->color); + } + } else { + if (rgb) { + thisColor = facet->color; + glColor3fv(facet->color); + } else { + thisColor = facet->color; + glIndexf(facet->color[1]); + } + } + + if (!lastColor || (thisColor[0] != lastColor[0] && smooth)) { + if (lastColor) { + glEnd(); + glBegin(GL_QUAD_STRIP); + } + coord = GETCOORD(curFrame, i, j); + if (smooth && lighting) { + glNormal3fv(coord->normal); + } + glVertex3fv(coord->vertex); + + coord = GETCOORD(curFrame, i+1, j); + if (smooth && lighting) { + glNormal3fv(coord->normal); + } + glVertex3fv(coord->vertex); + } + + coord = GETCOORD(curFrame, i, j+1); + if (smooth && lighting) { + glNormal3fv(coord->normal); + } + glVertex3fv(coord->vertex); + + coord = GETCOORD(curFrame, i+1, j+1); + if (smooth && lighting) { + glNormal3fv(coord->normal); + } + glVertex3fv(coord->vertex); + + lastColor = thisColor; + } + glEnd(); + } + + glFlush(); + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static void SetColorMap(void) +{ + static float green[3] = {0.2, 1.0, 0.2}; + static float red[3] = {1.0, 0.2, 0.2}; + float *color = 0, percent; + GLint *indexes = 0, entries, i, j; + + entries = glutGet(GLUT_WINDOW_COLORMAP_SIZE); + + colorIndexes1[0] = 1; + colorIndexes1[1] = 1 + (GLint)((entries - 1) * 0.3); + colorIndexes1[2] = (GLint)((entries - 1) * 0.5); + colorIndexes2[0] = 1 + (GLint)((entries - 1) * 0.5); + colorIndexes2[1] = 1 + (GLint)((entries - 1) * 0.8); + colorIndexes2[2] = entries - 1; + + for (i = 0; i < 2; i++) { + switch (i) { + case 0: + color = green; + indexes = colorIndexes1; + break; + case 1: + color = red; + indexes = colorIndexes2; + break; + } + + for (j = indexes[0]; j < indexes[1]; j++) { + percent = 0.2 + 0.8 * (j - indexes[0]) / + (float)(indexes[1] - indexes[0]); + glutSetColor(j, percent*color[0], percent*color[1], + percent*color[2]); + } + for (j=indexes[1]; j<=indexes[2]; j++) { + percent = (j - indexes[1]) / (float)(indexes[2] - indexes[1]); + glutSetColor(j, percent*(1-color[0])+color[0], + percent*(1-color[1])+color[1], + percent*(1-color[2])+color[2]); + } + } +} + +static void InitMesh(void) +{ + struct coord *coord; + struct facet *facet; + float dp1[3], dp2[3]; + float *pt1, *pt2, *pt3; + float angle, d, x, y; + GLint numFacets, numCoords, frameNum, i, j; + + theMesh.widthX = widthX; + theMesh.widthY = widthY; + theMesh.frames = frames; + + numFacets = widthX * widthY; + numCoords = (widthX + 1) * (widthY + 1); + + theMesh.numCoords = numCoords; + theMesh.numFacets = numFacets; + + theMesh.coords = (struct coord *)malloc(frames*numCoords* + sizeof(struct coord)); + theMesh.facets = (struct facet *)malloc(frames*numFacets* + sizeof(struct facet)); + if (theMesh.coords == NULL || theMesh.facets == NULL) { + printf("Out of memory.\n"); + exit(1); + } + + for (frameNum = 0; frameNum < frames; frameNum++) { + for (i = 0; i <= widthX; i++) { + x = i / (float)widthX; + for (j = 0; j <= widthY; j++) { + y = j / (float)widthY; + + d = sqrt(x*x+y*y); + if (d == 0.0) { + d = 0.0001; + } + angle = 2 * PI * d + (2 * PI / frames * frameNum); + + coord = GETCOORD(frameNum, i, j); + + coord->vertex[0] = x - 0.5; + coord->vertex[1] = y - 0.5; + coord->vertex[2] = (height - height * d) * cos(angle); + + coord->normal[0] = -(height / d) * x * ((1 - d) * 2 * PI * + sin(angle) + cos(angle)); + coord->normal[1] = -(height / d) * y * ((1 - d) * 2 * PI * + sin(angle) + cos(angle)); + coord->normal[2] = -1; + + d = 1.0 / sqrt(coord->normal[0]*coord->normal[0]+ + coord->normal[1]*coord->normal[1]+1); + coord->normal[0] *= d; + coord->normal[1] *= d; + coord->normal[2] *= d; + } + } + for (i = 0; i < widthX; i++) { + for (j = 0; j < widthY; j++) { + facet = GETFACET(frameNum, i, j); + if (((i/checkerSize)%2)^(j/checkerSize)%2) { + if (rgb) { + facet->color[0] = 1.0; + facet->color[1] = 0.2; + facet->color[2] = 0.2; + } else { + facet->color[0] = colorIndexes1[0]; + facet->color[1] = colorIndexes1[1]; + facet->color[2] = colorIndexes1[2]; + } + } else { + if (rgb) { + facet->color[0] = 0.2; + facet->color[1] = 1.0; + facet->color[2] = 0.2; + } else { + facet->color[0] = colorIndexes2[0]; + facet->color[1] = colorIndexes2[1]; + facet->color[2] = colorIndexes2[2]; + } + } + pt1 = GETCOORD(frameNum, i, j)->vertex; + pt2 = GETCOORD(frameNum, i, j+1)->vertex; + pt3 = GETCOORD(frameNum, i+1, j+1)->vertex; + + dp1[0] = pt2[0] - pt1[0]; + dp1[1] = pt2[1] - pt1[1]; + dp1[2] = pt2[2] - pt1[2]; + + dp2[0] = pt3[0] - pt2[0]; + dp2[1] = pt3[1] - pt2[1]; + dp2[2] = pt3[2] - pt2[2]; + + facet->normal[0] = dp1[1] * dp2[2] - dp1[2] * dp2[1]; + facet->normal[1] = dp1[2] * dp2[0] - dp1[0] * dp2[2]; + facet->normal[2] = dp1[0] * dp2[1] - dp1[1] * dp2[0]; + + d = 1.0 / sqrt(facet->normal[0]*facet->normal[0]+ + facet->normal[1]*facet->normal[1]+ + facet->normal[2]*facet->normal[2]); + + facet->normal[0] *= d; + facet->normal[1] *= d; + facet->normal[2] *= d; + } + } + } +} + +static void InitMaterials(void) +{ + static float ambient[] = {0.1, 0.1, 0.1, 1.0}; + static float diffuse[] = {0.5, 1.0, 1.0, 1.0}; + static float position[] = {90.0, 90.0, 150.0, 0.0}; + static float front_mat_shininess[] = {60.0}; + static float front_mat_specular[] = {0.2, 0.2, 0.2, 1.0}; + static float front_mat_diffuse[] = {0.5, 0.28, 0.38, 1.0}; + static float back_mat_shininess[] = {60.0}; + static float back_mat_specular[] = {0.5, 0.5, 0.2, 1.0}; + static float back_mat_diffuse[] = {1.0, 1.0, 0.2, 1.0}; + static float lmodel_ambient[] = {1.0, 1.0, 1.0, 1.0}; + static float lmodel_twoside[] = {GL_TRUE}; + + glMatrixMode(GL_PROJECTION); + gluPerspective(90.0, 1.0, 0.5, 10.0); + + glLightfv(GL_LIGHT0, GL_AMBIENT, ambient); + glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse); + glLightfv(GL_LIGHT0, GL_POSITION, position); + glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient); + glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside); + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + + glMaterialfv(GL_FRONT, GL_SHININESS, front_mat_shininess); + glMaterialfv(GL_FRONT, GL_SPECULAR, front_mat_specular); + glMaterialfv(GL_FRONT, GL_DIFFUSE, front_mat_diffuse); + glMaterialfv(GL_BACK, GL_SHININESS, back_mat_shininess); + glMaterialfv(GL_BACK, GL_SPECULAR, back_mat_specular); + glMaterialfv(GL_BACK, GL_DIFFUSE, back_mat_diffuse); + if (rgb) { + glColorMaterial(GL_FRONT_AND_BACK, GL_DIFFUSE); + } + + if (rgb) { + glEnable(GL_COLOR_MATERIAL); + } else { + SetColorMap(); + } +} + +static void InitTexture(void) +{ + + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); +} + +static void Init(void) +{ + + glClearColor(0.0, 0.0, 0.0, 0.0); + + glShadeModel(GL_FLAT); + + glFrontFace(GL_CW); + + glEnable(GL_DEPTH_TEST); + + InitMaterials(); + InitTexture(); + InitMesh(); + + glMatrixMode(GL_MODELVIEW); + glTranslatef(0.0, 0.4, -1.8); + glScalef(2.0, 2.0, 2.0); + glRotatef(-35.0, 1.0, 0.0, 0.0); + glRotatef(35.0, 0.0, 0.0, 1.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case 'c': + contouring++; + if (contouring == 1) { + static GLfloat map[4] = {0, 0, 20, 0}; + + glTexImage2D(GL_TEXTURE_2D, 0, 3, 4, 4, 0, GL_LUMINANCE, + GL_UNSIGNED_BYTE, (GLvoid *)contourTexture1); + glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR); + glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR); + glTexGenfv(GL_S, GL_OBJECT_PLANE, map); + glTexGenfv(GL_T, GL_OBJECT_PLANE, map); + glEnable(GL_TEXTURE_2D); + glEnable(GL_TEXTURE_GEN_S); + glEnable(GL_TEXTURE_GEN_T); + } else if (contouring == 2) { + static GLfloat map[4] = {0, 0, 20, 0}; + + glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR); + glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR); + glPushMatrix(); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTexGenfv(GL_S, GL_EYE_PLANE, map); + glTexGenfv(GL_T, GL_EYE_PLANE, map); + glPopMatrix(); + } else { + contouring = 0; + glDisable(GL_TEXTURE_GEN_S); + glDisable(GL_TEXTURE_GEN_T); + glDisable(GL_TEXTURE_2D); + } + break; + case 's': + smooth = !smooth; + if (smooth) { + glShadeModel(GL_SMOOTH); + } else { + glShadeModel(GL_FLAT); + } + break; + case 'l': + lighting = !lighting; + if (lighting) { + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + if (rgb) { + glEnable(GL_COLOR_MATERIAL); + } + } else { + glDisable(GL_LIGHTING); + glDisable(GL_LIGHT0); + if (rgb) { + glDisable(GL_COLOR_MATERIAL); + } + } + break; + case 'd': + depth = !depth; + if (depth) { + glEnable(GL_DEPTH_TEST); + clearMask |= GL_DEPTH_BUFFER_BIT; + } else { + glDisable(GL_DEPTH_TEST); + clearMask &= ~GL_DEPTH_BUFFER_BIT; + } + break; + case 32: + stepMode = !stepMode; + if (stepMode) { + glutIdleFunc(0); + } else { + glutIdleFunc(glut_post_redisplay_p); + } + break; + case 'n': + if (stepMode) { + nextFrame = 1; + } + break; + case 'a': + spinMode = !spinMode; + break; + default: + return; + } + glutPostRedisplay(); +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_TRUE; + frames = 10; + widthX = 10; + widthY = 10; + checkerSize = 2; + height = 0.2; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else if (strcmp(argv[i], "-grid") == 0) { + if (i+2 >= argc || argv[i+1][0] == '-' || argv[i+2][0] == '-') { + printf("-grid (No numbers).\n"); + return GL_FALSE; + } else { + widthX = atoi(argv[++i]); + widthY = atoi(argv[++i]); + } + } else if (strcmp(argv[i], "-size") == 0) { + if (i+1 >= argc || argv[i+1][0] == '-') { + printf("-checker (No number).\n"); + return GL_FALSE; + } else { + checkerSize = atoi(argv[++i]); + } + } else if (strcmp(argv[i], "-wave") == 0) { + if (i+1 >= argc || argv[i+1][0] == '-') { + printf("-wave (No number).\n"); + return GL_FALSE; + } else { + height = atof(argv[++i]); + } + } else if (strcmp(argv[i], "-frames") == 0) { + if (i+1 >= argc || argv[i+1][0] == '-') { + printf("-frames (No number).\n"); + return GL_FALSE; + } else { + frames = atoi(argv[++i]); + } + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + type = GLUT_DEPTH; + type |= (rgb) ? GLUT_RGB : GLUT_INDEX; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Wave Demo") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Animate); + glutIdleFunc(glut_post_redisplay_p); + glutMainLoop(); + return 0; +} |