diff options
author | Julien Cristau <[email protected]> | 2008-07-01 13:17:44 +0200 |
---|---|---|
committer | Julien Cristau <[email protected]> | 2008-07-01 13:18:27 +0200 |
commit | 374be37dd904b8dc7b91b4b782a6b7b46b00afba (patch) | |
tree | 2562d5fcf4183bdc67d6c418513e1f562dddfe20 /progs/demos/copypix.c | |
parent | 2b831e73f5027850837e613636915c7dd6c7078a (diff) | |
parent | d3f7b463c3975c070503053e4ad70af99016a756 (diff) |
Merge branch 'master' of git.freedesktop.org:/git/mesa/mesa into debian-experimental
Conflicts:
.gitignore
Makefile
bin/mklib
configs/.gitignore
configs/default
configs/freebsd
configs/freebsd-dri
configs/linux-osmesa
configs/linux-osmesa16
configs/linux-osmesa16-static
configs/linux-osmesa32
docs/download.html
docs/install.html
docs/news.html
docs/relnotes.html
doxygen/Makefile
doxygen/doxy.bat
doxygen/header.html
doxygen/header_subset.html
include/GL/internal/dri_interface.h
progs/demos/.gitignore
progs/directfb/Makefile
progs/egl/Makefile
progs/fbdev/Makefile
progs/fbdev/glfbdevtest.c
progs/fp/Makefile
progs/glsl/.gitignore
progs/glsl/Makefile
progs/glsl/bump.c
progs/glsl/mandelbrot.c
progs/glsl/noise.c
progs/glsl/toyball.c
progs/miniglx/Makefile
progs/samples/.gitignore
progs/slang/Makefile
progs/tests/.gitignore
progs/tests/Makefile
progs/tests/arbnpot.c
progs/tests/cva.c
progs/tests/dinoshade.c
progs/tests/drawbuffers.c
progs/tests/fbotest2.c
progs/tests/fbotexture.c
progs/tests/getprocaddress.c
progs/tests/mipmap_limits.c
progs/tests/multipal.c
progs/tests/texline.c
progs/tools/trace/Makefile
progs/trivial/Makefile
progs/trivial/dlist-edgeflag-dangling.c
progs/trivial/dlist-edgeflag.c
progs/trivial/point-param.c
progs/trivial/quad-clip-nearplane.c
progs/trivial/tri.c
progs/vp/Makefile
progs/xdemos/.gitignore
progs/xdemos/Makefile
progs/xdemos/glthreads.c
src/egl/Makefile
src/egl/drivers/demo/Makefile
src/egl/drivers/dri/Makefile
src/egl/main/Makefile
src/glu/mesa/Makefile
src/glu/mesa/Makefile.m32
src/glu/mesa/project.c
src/glu/mini/project.c
src/glut/directfb/Makefile
src/glut/directfb/callback.c
src/glut/directfb/events.c
src/glut/directfb/internal.h
src/glut/directfb/window.c
src/glut/os2/Makefile
src/glut/os2/WarpWin.cpp
src/glut/os2/glutOverlay.cpp
src/glut/os2/glut_8x13.cpp
src/glut/os2/glut_9x15.cpp
src/glut/os2/glut_bitmap.cpp
src/glut/os2/glut_cindex.cpp
src/glut/os2/glut_cmap.cpp
src/glut/os2/glut_cursor.cpp
src/glut/os2/glut_event.cpp
src/glut/os2/glut_ext.cpp
src/glut/os2/glut_fullscrn.cpp
src/glut/os2/glut_gamemode.cpp
src/glut/os2/glut_get.cpp
src/glut/os2/glut_hel10.cpp
src/glut/os2/glut_hel12.cpp
src/glut/os2/glut_hel18.cpp
src/glut/os2/glut_init.cpp
src/glut/os2/glut_input.cpp
src/glut/os2/glut_key.cpp
src/glut/os2/glut_keyctrl.cpp
src/glut/os2/glut_keyup.cpp
src/glut/os2/glut_mesa.cpp
src/glut/os2/glut_modifier.cpp
src/glut/os2/glut_roman.cpp
src/glut/os2/glut_shapes.cpp
src/glut/os2/glut_stroke.cpp
src/glut/os2/glut_swap.cpp
src/glut/os2/glut_teapot.cpp
src/glut/os2/glut_tr24.cpp
src/glut/os2/glut_util.cpp
src/glut/os2/glut_vidresize.cpp
src/glut/os2/glut_warp.cpp
src/glut/os2/glut_win.cpp
src/glut/os2/glut_winmisc.cpp
src/glut/os2/glutbitmap.h
src/glut/os2/glutstroke.h
src/glut/os2/layerutil.h
src/glut/os2/libGlut.DEF
src/glut/os2/os2_glx.cpp
src/glut/os2/os2_menu.cpp
src/glut/os2/os2_winproc.cpp
src/glw/Makefile
src/glx/mini/Makefile
src/glx/mini/miniglx.c
src/glx/x11/glxext.c
src/mesa/Makefile
src/mesa/drivers/allegro/amesa.c
src/mesa/drivers/allegro/direct.h
src/mesa/drivers/allegro/generic.h
src/mesa/drivers/d3d/D3DCAPS.CPP
src/mesa/drivers/d3d/D3DHAL.H
src/mesa/drivers/d3d/D3DInit.cpp
src/mesa/drivers/d3d/D3DMESA.H
src/mesa/drivers/d3d/D3DRaster.cpp
src/mesa/drivers/d3d/D3DTEXT.CPP
src/mesa/drivers/d3d/D3DTextureMgr.cpp
src/mesa/drivers/d3d/D3DTextureMgr.h
src/mesa/drivers/d3d/D3DUTILS.CPP
src/mesa/drivers/d3d/DDrawPROCS.c
src/mesa/drivers/d3d/DEBUG.C
src/mesa/drivers/d3d/DEBUG.H
src/mesa/drivers/d3d/DbgEnv.bat
src/mesa/drivers/d3d/MAKEFILE
src/mesa/drivers/d3d/OPENGL32.DEF
src/mesa/drivers/d3d/WGL.C
src/mesa/drivers/dri/Makefile.template
src/mesa/drivers/dri/common/dri_bufmgr.c
src/mesa/drivers/dri/common/dri_drmpool.c
src/mesa/drivers/dri/common/dri_util.c
src/mesa/drivers/dri/common/dri_util.h
src/mesa/drivers/dri/common/xmlconfig.c
src/mesa/drivers/dri/glcore/Makefile
src/mesa/drivers/dri/i915/i915_fragprog.c
src/mesa/drivers/dri/i915/i915_program.h
src/mesa/drivers/dri/i915/i915_texprog.c
src/mesa/drivers/dri/i915/i915_texstate.c
src/mesa/drivers/dri/i915/i915_vtbl.c
src/mesa/drivers/dri/i915/intel_context.c
src/mesa/drivers/dri/i915/intel_context.h
src/mesa/drivers/dri/i915/intel_pixel.c
src/mesa/drivers/dri/i915/intel_render.c
src/mesa/drivers/dri/i915/intel_screen.c
src/mesa/drivers/dri/i915/intel_state.c
src/mesa/drivers/dri/i915/intel_tex.c
src/mesa/drivers/dri/i915/intel_tris.c
src/mesa/drivers/dri/i915tex/i830_reg.h
src/mesa/drivers/dri/i915tex/i830_texstate.c
src/mesa/drivers/dri/i915tex/i830_vtbl.c
src/mesa/drivers/dri/i915tex/i915_fragprog.c
src/mesa/drivers/dri/i915tex/i915_metaops.c
src/mesa/drivers/dri/i915tex/i915_tex_layout.c
src/mesa/drivers/dri/i915tex/i915_texstate.c
src/mesa/drivers/dri/i915tex/i915_vtbl.c
src/mesa/drivers/dri/i915tex/intel_render.c
src/mesa/drivers/dri/i915tex/intel_screen.c
src/mesa/drivers/dri/i915tex/intel_tris.c
src/mesa/drivers/dri/i965/brw_aub.c
src/mesa/drivers/dri/i965/brw_aub_playback.c
src/mesa/drivers/dri/i965/brw_cc.c
src/mesa/drivers/dri/i965/brw_clip.c
src/mesa/drivers/dri/i965/brw_clip_state.c
src/mesa/drivers/dri/i965/brw_clip_util.c
src/mesa/drivers/dri/i965/brw_context.c
src/mesa/drivers/dri/i965/brw_curbe.c
src/mesa/drivers/dri/i965/brw_defines.h
src/mesa/drivers/dri/i965/brw_draw.c
src/mesa/drivers/dri/i965/brw_draw_upload.c
src/mesa/drivers/dri/i965/brw_eu.h
src/mesa/drivers/dri/i965/brw_eu_emit.c
src/mesa/drivers/dri/i965/brw_gs_state.c
src/mesa/drivers/dri/i965/brw_misc_state.c
src/mesa/drivers/dri/i965/brw_sf_emit.c
src/mesa/drivers/dri/i965/brw_sf_state.c
src/mesa/drivers/dri/i965/brw_state_cache.c
src/mesa/drivers/dri/i965/brw_state_pool.c
src/mesa/drivers/dri/i965/brw_tex.c
src/mesa/drivers/dri/i965/brw_tex_layout.c
src/mesa/drivers/dri/i965/brw_vs_state.c
src/mesa/drivers/dri/i965/brw_vs_tnl.c
src/mesa/drivers/dri/i965/brw_wm.c
src/mesa/drivers/dri/i965/brw_wm.h
src/mesa/drivers/dri/i965/brw_wm_glsl.c
src/mesa/drivers/dri/i965/brw_wm_sampler_state.c
src/mesa/drivers/dri/i965/brw_wm_state.c
src/mesa/drivers/dri/i965/brw_wm_surface_state.c
src/mesa/drivers/dri/i965/bufmgr_fake.c
src/mesa/drivers/dri/i965/intel_batchbuffer.c
src/mesa/drivers/dri/i965/intel_batchbuffer.h
src/mesa/drivers/dri/i965/intel_blit.c
src/mesa/drivers/dri/i965/intel_blit.h
src/mesa/drivers/dri/i965/intel_buffers.c
src/mesa/drivers/dri/i965/intel_context.c
src/mesa/drivers/dri/i965/intel_context.h
src/mesa/drivers/dri/i965/intel_mipmap_tree.c
src/mesa/drivers/dri/i965/intel_mipmap_tree.h
src/mesa/drivers/dri/i965/intel_pixel_bitmap.c
src/mesa/drivers/dri/i965/intel_pixel_copy.c
src/mesa/drivers/dri/i965/intel_screen.c
src/mesa/drivers/dri/i965/intel_tex_validate.c
src/mesa/drivers/dri/i965/server/i830_common.h
src/mesa/drivers/dri/intel/intel_batchbuffer.c
src/mesa/drivers/dri/intel/intel_batchbuffer.h
src/mesa/drivers/dri/intel/intel_blit.c
src/mesa/drivers/dri/intel/intel_buffers.c
src/mesa/drivers/dri/intel/intel_context.c
src/mesa/drivers/dri/intel/intel_context.h
src/mesa/drivers/dri/intel/intel_mipmap_tree.c
src/mesa/drivers/dri/intel/intel_mipmap_tree.h
src/mesa/drivers/dri/intel/intel_screen.h
src/mesa/drivers/dri/r200/r200_texstate.c
src/mesa/drivers/dri/r300/r300_cmdbuf.c
src/mesa/drivers/dri/r300/r300_context.h
src/mesa/drivers/dri/r300/r300_ioctl.c
src/mesa/drivers/dri/r300/r300_reg.h
src/mesa/drivers/dri/r300/r300_state.c
src/mesa/drivers/dri/r300/r300_tex.h
src/mesa/drivers/dri/r300/r300_texstate.c
src/mesa/drivers/dri/radeon/radeon_screen.c
src/mesa/drivers/windows/gdi/wmesa.c
src/mesa/drivers/x11/fakeglx.c
src/mesa/drivers/x11/xm_dd.c
src/mesa/glapi/Makefile
src/mesa/glapi/dispatch.h
src/mesa/glapi/glapioffsets.h
src/mesa/glapi/glapitable.h
src/mesa/glapi/glapitemp.h
src/mesa/glapi/glprocs.h
src/mesa/main/api_validate.c
src/mesa/main/attrib.c
src/mesa/main/config.h
src/mesa/main/context.c
src/mesa/main/context.h
src/mesa/main/dlist.c
src/mesa/main/drawpix.c
src/mesa/main/enums.c
src/mesa/main/fbobject.c
src/mesa/main/image.c
src/mesa/main/imports.h
src/mesa/main/mtypes.h
src/mesa/main/points.c
src/mesa/main/state.c
src/mesa/main/texcompress_fxt1.c
src/mesa/main/texenvprogram.c
src/mesa/main/teximage.c
src/mesa/main/texobj.c
src/mesa/main/texstate.c
src/mesa/main/version.h
src/mesa/shader/prog_execute.c
src/mesa/shader/program.c
src/mesa/shader/shader_api.c
src/mesa/shader/slang/library/slang_core.gc
src/mesa/shader/slang/library/slang_core_gc.h
src/mesa/shader/slang/slang_codegen.c
src/mesa/sources
src/mesa/sparc/glapi_sparc.S
src/mesa/swrast/s_aalinetemp.h
src/mesa/swrast/s_aatriangle.c
src/mesa/swrast/s_aatritemp.h
src/mesa/swrast/s_context.c
src/mesa/swrast/s_copypix.c
src/mesa/swrast/s_drawpix.c
src/mesa/swrast/s_fragprog.c
src/mesa/swrast/s_pointtemp.h
src/mesa/swrast/s_readpix.c
src/mesa/swrast/s_span.c
src/mesa/swrast/s_texfilter.c
src/mesa/swrast/s_tritemp.h
src/mesa/swrast/s_zoom.c
src/mesa/tnl/t_draw.c
src/mesa/tnl/t_vb_fog.c
src/mesa/tnl/t_vb_program.c
src/mesa/tnl/t_vp_build.c
src/mesa/vbo/vbo_split_copy.c
src/mesa/x86-64/xform4.S
src/mesa/x86/common_x86.c
src/mesa/x86/glapi_x86.S
windows/VC6/mesa/mesa/mesa.dsp
Diffstat (limited to 'progs/demos/copypix.c')
-rw-r--r-- | progs/demos/copypix.c | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/progs/demos/copypix.c b/progs/demos/copypix.c new file mode 100644 index 00000000000..15001e851be --- /dev/null +++ b/progs/demos/copypix.c @@ -0,0 +1,248 @@ +/** + * glCopyPixels test + * + * Brian Paul + * 14 Sep 2007 + */ + + +#define GL_GLEXT_PROTOTYPES + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <GL/glut.h> + +#include "readtex.h" + +#define IMAGE_FILE "../images/arch.rgb" + +static int ImgWidth, ImgHeight; +static GLenum ImgFormat; +static GLubyte *Image = NULL; + +static int WinWidth = 800, WinHeight = 800; +static int Xpos, Ypos; +static int Scissor = 0; +static float Xzoom, Yzoom; +static GLboolean DrawFront = GL_FALSE; +static GLboolean Dither = GL_TRUE; + + +static void Reset( void ) +{ + Xpos = Ypos = 20; + Scissor = 0; + Xzoom = Yzoom = 1.0; +} + + +static void Display( void ) +{ + const int dx = (WinWidth - ImgWidth) / 2; + const int dy = (WinHeight - ImgHeight) / 2; + + if (DrawFront) { + glDrawBuffer(GL_FRONT); + glReadBuffer(GL_FRONT); + } + else { + glDrawBuffer(GL_BACK); + glReadBuffer(GL_BACK); + } + + glClear( GL_COLOR_BUFFER_BIT ); + + /* draw original image */ + glWindowPos2iARB(dx, dy); + glDrawPixels(ImgWidth, ImgHeight, ImgFormat, GL_UNSIGNED_BYTE, Image); + + if (Scissor) + glEnable(GL_SCISSOR_TEST); + + /* draw copy */ + glPixelZoom(Xzoom, Yzoom); + glWindowPos2iARB(Xpos, Ypos); + glCopyPixels(dx, dy, ImgWidth, ImgHeight, GL_COLOR); + glPixelZoom(1, 1); + + glDisable(GL_SCISSOR_TEST); + + if (DrawFront) + glFinish(); + else + glutSwapBuffers(); +} + + +static void Reshape( int width, int height ) +{ + WinWidth = width; + WinHeight = height; + + glViewport( 0, 0, width, height ); + glMatrixMode( GL_PROJECTION ); + glLoadIdentity(); + glOrtho( 0.0, width, 0.0, height, 0.0, 2.0 ); + glMatrixMode( GL_MODELVIEW ); + glLoadIdentity(); + + glScissor(width/4, height/4, width/2, height/2); +} + + +static void Key( unsigned char key, int x, int y ) +{ + (void) x; + (void) y; + switch (key) { + case ' ': + Reset(); + break; + case 'd': + Dither = !Dither; + if (Dither) + glEnable(GL_DITHER); + else + glDisable(GL_DITHER); + break; + case 's': + Scissor = !Scissor; + break; + case 'x': + Xzoom -= 0.1; + break; + case 'X': + Xzoom += 0.1; + break; + case 'y': + Yzoom -= 0.1; + break; + case 'Y': + Yzoom += 0.1; + break; + case 'f': + DrawFront = !DrawFront; + printf("glDrawBuffer(%s)\n", DrawFront ? "GL_FRONT" : "GL_BACK"); + break; + case 27: + exit(0); + break; + } + glutPostRedisplay(); +} + + +static void SpecialKey( int key, int x, int y ) +{ + const int step = (glutGetModifiers() & GLUT_ACTIVE_SHIFT) ? 10 : 1; + (void) x; + (void) y; + switch (key) { + case GLUT_KEY_UP: + Ypos += step; + break; + case GLUT_KEY_DOWN: + Ypos -= step; + break; + case GLUT_KEY_LEFT: + Xpos -= step; + break; + case GLUT_KEY_RIGHT: + Xpos += step; + break; + } + glutPostRedisplay(); +} + + +static void Init( GLboolean ciMode, const char *filename ) +{ + printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + + Image = LoadRGBImage( filename, &ImgWidth, &ImgHeight, &ImgFormat ); + if (!Image) { + printf("Couldn't read %s\n", filename); + exit(0); + } + + if (ciMode) { + /* Convert RGB image to grayscale */ + GLubyte *indexImage = (GLubyte *) malloc( ImgWidth * ImgHeight ); + GLint i; + for (i=0; i<ImgWidth*ImgHeight; i++) { + int gray = Image[i*3] + Image[i*3+1] + Image[i*3+2]; + indexImage[i] = gray / 3; + } + free(Image); + Image = indexImage; + ImgFormat = GL_COLOR_INDEX; + + for (i=0;i<255;i++) { + float g = i / 255.0; + glutSetColor(i, g, g, g); + } + } + + printf("Loaded %d by %d image\n", ImgWidth, ImgHeight ); + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glPixelStorei(GL_UNPACK_ROW_LENGTH, ImgWidth); + + Reset(); +} + + +static void Usage(void) +{ + printf("Keys:\n"); + printf(" SPACE Reset Parameters\n"); + printf(" Up/Down Move image up/down (SHIFT for large step)\n"); + printf(" Left/Right Move image left/right (SHIFT for large step)\n"); + printf(" x Decrease X-axis PixelZoom\n"); + printf(" X Increase X-axis PixelZoom\n"); + printf(" y Decrease Y-axis PixelZoom\n"); + printf(" Y Increase Y-axis PixelZoom\n"); + printf(" s Toggle GL_SCISSOR_TEST\n"); + printf(" f Toggle front/back buffer drawing\n"); + printf(" ESC Exit\n"); +} + + +int main( int argc, char *argv[] ) +{ + GLboolean ciMode = GL_FALSE; + const char *filename = IMAGE_FILE; + int i = 1; + + if (argc > i && strcmp(argv[i], "-ci")==0) { + ciMode = GL_TRUE; + i++; + } + if (argc > i) { + filename = argv[i]; + } + + glutInit( &argc, argv ); + glutInitWindowPosition( 0, 0 ); + glutInitWindowSize( WinWidth, WinHeight ); + + if (ciMode) + glutInitDisplayMode( GLUT_INDEX | GLUT_DOUBLE ); + else + glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE); + + glutCreateWindow(argv[0]); + + Init(ciMode, filename); + Usage(); + + glutReshapeFunc( Reshape ); + glutKeyboardFunc( Key ); + glutSpecialFunc( SpecialKey ); + glutDisplayFunc( Display ); + + glutMainLoop(); + return 0; +} |