From 816c0c932ddccd6d3804430de9c8ae375fde782c Mon Sep 17 00:00:00 2001 From: Ian Romanick Date: Wed, 9 Feb 2005 22:16:38 +0000 Subject: Simple test for ARB_texture_env_crossbar functionality. It is difficult to come up with good tests for this functionality that don't require either ATI_texture_env_combine3 or NV_texture_env_combine4. --- progs/tests/Makefile | 1 + progs/tests/crossbar.c | 235 +++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 236 insertions(+) create mode 100644 progs/tests/crossbar.c (limited to 'progs/tests') diff --git a/progs/tests/Makefile b/progs/tests/Makefile index 34eb404e91..dbcb088244 100644 --- a/progs/tests/Makefile +++ b/progs/tests/Makefile @@ -22,6 +22,7 @@ SOURCES = antialias.c \ blendminmax.c \ blendsquare.c \ bufferobj.c \ + crossbar.c \ cva.c \ dinoshade.c \ floattex.c \ diff --git a/progs/tests/crossbar.c b/progs/tests/crossbar.c new file mode 100644 index 0000000000..12aabb1c9a --- /dev/null +++ b/progs/tests/crossbar.c @@ -0,0 +1,235 @@ +/* + * (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 + */ + +#include +#include +#include +#include + +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 * const) + glGetString( GL_VERSION ); + float ver = strtof( 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 %u squares should be the same color.\n", 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" ); + glutReshapeFunc( Reshape ); + glutKeyboardFunc( Key ); + glutDisplayFunc( Display ); + Init(); + glutMainLoop(); + return 0; +} -- cgit v1.2.3