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Diffstat (limited to 'progs/tests/crossbar.c')
-rw-r--r-- | progs/tests/crossbar.c | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/progs/tests/crossbar.c b/progs/tests/crossbar.c deleted file mode 100644 index ac9a8eae3b7..00000000000 --- a/progs/tests/crossbar.c +++ /dev/null @@ -1,237 +0,0 @@ -/* - * (C) Copyright IBM Corporation 2005 - * 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 - * on the rights to use, copy, modify, merge, publish, distribute, sub - * license, 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 (including the next - * paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS 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. - */ - -/** - * \file crossbar.c - * - * Simple test of GL_ARB_texture_env_crossbar functionality. Several squares - * are drawn with different texture combine modes, but all should be rendered - * with the same final color. - * - * \author Ian Romanick <[email protected]> - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <GL/glew.h> -#include <GL/glut.h> - -static const GLint tests[][8] = { - { 1, GL_REPLACE, GL_PRIMARY_COLOR, GL_PRIMARY_COLOR, - 2, GL_REPLACE, GL_TEXTURE, GL_PRIMARY_COLOR }, - { 3, GL_REPLACE, GL_PRIMARY_COLOR, GL_PRIMARY_COLOR, - 2, GL_SUBTRACT, GL_TEXTURE0, GL_TEXTURE1 }, - { 2, GL_REPLACE, GL_PRIMARY_COLOR, GL_PRIMARY_COLOR, - 2, GL_REPLACE, GL_TEXTURE0, GL_TEXTURE0 }, - { 2, GL_REPLACE, GL_PRIMARY_COLOR, GL_PRIMARY_COLOR, - 1, GL_SUBTRACT, GL_TEXTURE0, GL_TEXTURE1 }, - { 3, GL_ADD, GL_TEXTURE1, GL_TEXTURE1, - 2, GL_MODULATE, GL_TEXTURE1, GL_PREVIOUS }, - { 3, GL_ADD, GL_TEXTURE1, GL_TEXTURE1, - 4, GL_MODULATE, GL_TEXTURE0, GL_PREVIOUS }, -}; - -#define NUM_TESTS (sizeof(tests) / sizeof(tests[0])) - -static int Width = 100 * (NUM_TESTS + 1); -static int Height = 200; -static const GLfloat Near = 5.0, Far = 25.0; - - -static void Display( void ) -{ - unsigned i; - - - glClearColor(0.2, 0.2, 0.8, 0); - glClear( GL_COLOR_BUFFER_BIT ); - - glPushMatrix(); - - /* This is the "reference" square. - */ - - glActiveTexture( GL_TEXTURE0 ); - glDisable( GL_TEXTURE_2D ); - glActiveTexture( GL_TEXTURE1 ); - glDisable( GL_TEXTURE_2D ); - - glTranslatef(-(NUM_TESTS * 1.5), 0, 0); - glBegin(GL_QUADS); - glColor3f( 0.5, 0.5, 0.5 ); - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - glEnd(); - - for ( i = 0 ; i < NUM_TESTS ; i++ ) { - glActiveTexture( GL_TEXTURE0 ); - glEnable( GL_TEXTURE_2D ); - glBindTexture( GL_TEXTURE_2D, tests[i][0] ); - glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE ); - glTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_RGB, tests[i][1] ); - glTexEnvi( GL_TEXTURE_ENV, GL_SOURCE0_RGB, tests[i][2] ); - glTexEnvi( GL_TEXTURE_ENV, GL_SOURCE1_RGB, tests[i][3] ); - - glActiveTexture( GL_TEXTURE1 ); - glEnable( GL_TEXTURE_2D ); - glBindTexture( GL_TEXTURE_2D, tests[i][4] ); - glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE ); - glTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_RGB, tests[i][5] ); - glTexEnvi( GL_TEXTURE_ENV, GL_SOURCE0_RGB, tests[i][6] ); - glTexEnvi( GL_TEXTURE_ENV, GL_SOURCE1_RGB, tests[i][7] ); - - glCallList(1); - } - - glPopMatrix(); - - glutSwapBuffers(); -} - - -static void Reshape( int width, int height ) -{ - GLfloat ar = (float) width / (float) height; - Width = width; - Height = height; - glViewport( 0, 0, width, height ); - glMatrixMode( GL_PROJECTION ); - glLoadIdentity(); - glFrustum( -ar, ar, -1.0, 1.0, Near, Far ); - glMatrixMode( GL_MODELVIEW ); - glLoadIdentity(); - glTranslatef( 0.0, 0.0, -15.0 ); -} - - -static void Key( unsigned char key, int x, int y ) -{ - (void) x; - (void) y; - switch (key) { - case 27: - exit(0); - break; - } - glutPostRedisplay(); -} - - -static void Init( void ) -{ - const char * const ver_string = (const char *) - glGetString( GL_VERSION ); - float ver = strtod( ver_string, NULL ); - GLint tex_units; - GLint temp[ 256 ]; - - - printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); - printf("GL_VERSION = %s\n", ver_string); - - if ( (!glutExtensionSupported("GL_ARB_multitexture") - && (ver < 1.3)) - || (!glutExtensionSupported("GL_ARB_texture_env_combine") - && !glutExtensionSupported("GL_EXT_texture_env_combine") - && (ver < 1.3)) - || (!glutExtensionSupported("GL_ARB_texture_env_crossbar") - && !glutExtensionSupported("GL_NV_texture_env_combine4") - && (ver < 1.4)) ) { - printf("\nSorry, this program requires GL_ARB_multitexture and either\n" - "GL_ARB_texture_env_combine or GL_EXT_texture_env_combine (or OpenGL 1.3).\n" - "Either GL_ARB_texture_env_crossbar or GL_NV_texture_env_combine4 (or\n" - "OpenGL 1.4) are also required.\n"); - exit(1); - } - - glGetIntegerv( GL_MAX_TEXTURE_UNITS, & tex_units ); - if ( tex_units < 2 ) { - printf("\nSorry, this program requires at least 2 texture units.\n"); - exit(1); - } - - printf("\nAll %lu squares should be the same color.\n", (unsigned long) NUM_TESTS + 1); - - (void) memset( temp, 0x00, sizeof( temp ) ); - glBindTexture( GL_TEXTURE_2D, 1 ); - 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, GL_RGBA, 8, 8, 0, - GL_RGBA, GL_UNSIGNED_BYTE, temp ); - - (void) memset( temp, 0x7f, sizeof( temp ) ); - glBindTexture( GL_TEXTURE_2D, 2 ); - 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, GL_RGBA, 8, 8, 0, - GL_RGBA, GL_UNSIGNED_BYTE, temp ); - - (void) memset( temp, 0xff, sizeof( temp ) ); - glBindTexture( GL_TEXTURE_2D, 3 ); - 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, GL_RGBA, 8, 8, 0, - GL_RGBA, GL_UNSIGNED_BYTE, temp ); - - (void) memset( temp, 0x3f, sizeof( temp ) ); - glBindTexture( GL_TEXTURE_2D, 4 ); - 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, GL_RGBA, 8, 8, 0, - GL_RGBA, GL_UNSIGNED_BYTE, temp ); - - - glNewList( 1, GL_COMPILE ); - glTranslatef(3.0, 0, 0); - glBegin(GL_QUADS); - glColor3f( 0.9, 0.0, 0.0 ); - glMultiTexCoord2f( GL_TEXTURE0, 0.5, 0.5 ); - glMultiTexCoord2f( GL_TEXTURE1, 0.5, 0.5 ); - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - glEnd(); - glEndList(); -} - - -int main( int argc, char *argv[] ) -{ - glutInit( &argc, argv ); - glutInitWindowPosition( 0, 0 ); - glutInitWindowSize( Width, Height ); - glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE ); - glutCreateWindow( "GL_ARB_texture_env_crossbar test" ); - glewInit(); - glutReshapeFunc( Reshape ); - glutKeyboardFunc( Key ); - glutDisplayFunc( Display ); - Init(); - glutMainLoop(); - return 0; -} |