progs/tests/no_s3tc.c

   1 /*
   2  * (C) Copyright IBM Corporation 2004
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
  19  * VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  22  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 /**
  26  * \file no_s3tc.c
  27  * Test program to verify the behavior of an OpenGL implementation when
  28  * an application calls \c glCompressedTexImage2D with an unsupported (but
  29  * valid) compression format.  The most common example is calling it with
  30  * \c GL_COMPRESSED_RGBA_S3TC_DXT1_EXT when GL_EXT_texture_compression_s3tc
  31  * is not supported.
  32  *
  33  * This tests Mesa bug #1028405.
  34  *
  35  * \author Ian Romanick <idr@us.ibm.com>
  36  */
  37
  38 #include <stdlib.h>
  39 #include <stdio.h>
  40 #include <string.h>
  41 #include <GL/glew.h>
  42 #include <GL/glut.h>
  43 #include <GL/glext.h>
  44
  45 static unsigned data[16];
  46
  47 int
  48 main( int argc, char ** argv )
  49 {
  50    float gl_version;
  51    GLenum format;
  52    GLuint size;
  53    GLuint width;
  54    GLenum err;
  55
  56
  57    glutInit( & argc, argv );
  58    glutInitDisplayMode( GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE );
  59
  60    glutInitWindowPosition( 0, 0 );
  61    glutInitWindowSize( 300, 300 );
  62    glutCreateWindow( "No S3TC Test" );
  63    glewInit();
  64
  65    gl_version = strtod( (const char *) glGetString( GL_VERSION ), NULL );
  66    if ( ! glutExtensionSupported( "GL_ARB_texture_compression" )
  67         && (gl_version < 1.3) ) {
  68       fprintf( stderr, "Either OpenGL 1.3 or GL_ARB_texture_compression "
  69                "must be supported.\n" );
  70       return( EXIT_SUCCESS );
  71    }
  72
  73
  74    if ( ! glutExtensionSupported( "GL_EXT_texture_compression_s3tc" ) ) {
  75       format = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
  76       width = 4;
  77       size = 8;
  78    }
  79    else if ( ! glutExtensionSupported( "GL_3DFX_texture_compression_FXT1" ) ) {
  80       format = GL_COMPRESSED_RGBA_FXT1_3DFX;
  81       width = 8;
  82       size = 16;
  83    }
  84    else {
  85       fprintf( stderr, "Either GL_EXT_texture_compression_s3tc or "
  86                "GL_3DFX_texture_compression_FXT1 must NOT be supported.\n" );
  87       return( EXIT_SUCCESS );
  88    }
  89
  90    glCompressedTexImage2D( GL_TEXTURE_2D, 0, format, width, 4, 0,
  91                            size, data );
  92    err = glGetError();
  93    if ( err != GL_INVALID_ENUM ) {
  94       fprintf( stderr, "GL error 0x%04x should have been generated, but "
  95                "0x%04x was generated instead.\n", GL_INVALID_ENUM, err );
  96    }
  97
  98    return (err == GL_INVALID_ENUM) ? EXIT_SUCCESS : EXIT_FAILURE;
  99 }