progs/tests/prog_parameter.c

   1 /*
   2  * (C) Copyright IBM Corporation 2006
   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  * IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 /**
  26  * \file prog_parameter.c
  27  *
  28  * Test various aspects of setting (and getting) low-level program parameters.
  29  * This is primarilly intended as a test for GL_EXT_gpu_program_parameters,
  30  * but it turns out that it hits some other functionality along the way.
  31  *
  32  * \author Ian Romanick <idr@us.ibm.com>
  33  */
  34
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <math.h>
  38 #include <GL/glut.h>
  39
  40 #ifndef GL_EXT_gpu_program_parameters
  41 typedef void (APIENTRYP PFNGLPROGRAMLOCALPARAMETERS4FVEXTPROC)(GLenum,
  42     GLuint, GLsizei, const GLfloat *);
  43 typedef void (APIENTRYP PFNGLPROGRAMENVPARAMETERS4FVEXTPROC)(GLenum,
  44     GLuint, GLsizei, const GLfloat *);
  45 #endif
  46
  47 static PFNGLPROGRAMLOCALPARAMETER4FVARBPROC program_local_parameter4fv = NULL;
  48 static PFNGLGETPROGRAMLOCALPARAMETERFVARBPROC get_program_local_parameterfv = NULL;
  49 static PFNGLPROGRAMENVPARAMETER4FVARBPROC program_env_parameter4fv = NULL;
  50 static PFNGLGETPROGRAMENVPARAMETERFVARBPROC get_program_env_parameterfv = NULL;
  51 static PFNGLBINDPROGRAMARBPROC bind_program = NULL;
  52 static PFNGLGETPROGRAMIVARBPROC get_program = NULL;
  53
  54 static PFNGLPROGRAMLOCALPARAMETERS4FVEXTPROC program_local_parameters4fv = NULL;
  55 static PFNGLPROGRAMENVPARAMETERS4FVEXTPROC program_env_parameters4fv = NULL;
  56
  57 static int Width = 400;
  58 static int Height = 200;
  59 static const GLfloat Near = 5.0, Far = 25.0;
  60
  61
  62 static void Display( void )
  63 {
  64 }
  65
  66
  67 static void Idle( void )
  68 {
  69 }
  70
  71
  72 static void Visible( int vis )
  73 {
  74    if ( vis == GLUT_VISIBLE ) {
  75       glutIdleFunc( Idle );
  76    }
  77    else {
  78       glutIdleFunc( NULL );
  79    }
  80 }
  81 static void Reshape( int width, int height )
  82 {
  83    GLfloat ar = (float) width / (float) height;
  84    Width = width;
  85    Height = height;
  86    glViewport( 0, 0, width, height );
  87    glMatrixMode( GL_PROJECTION );
  88    glLoadIdentity();
  89    glFrustum( -ar, ar, -1.0, 1.0, Near, Far );
  90 }
  91
  92
  93 static void Key( unsigned char key, int x, int y )
  94 {
  95    (void) x;
  96    (void) y;
  97    switch (key) {
  98       case 27:
  99          exit(0);
 100          break;
 101    }
 102    glutPostRedisplay();
 103 }
 104
 105
 106 static int set_parameter_batch( GLsizei count, GLfloat * param,
 107                                 const char * name,
 108                                 PFNGLPROGRAMLOCALPARAMETER4FVARBPROC set_parameter,
 109                                 PFNGLPROGRAMLOCALPARAMETERS4FVEXTPROC set_parameters,
 110                                 PFNGLGETPROGRAMLOCALPARAMETERFVARBPROC get_parameter
 111                                 )
 112 {
 113    unsigned i;
 114    int pass = 1;
 115
 116
 117    for ( i = 0 ; i < (4 * count) ; i++ ) {
 118       param[i] = (GLfloat) random() / (GLfloat) random();
 119    }
 120
 121    /* Try using the "classic" interface.
 122     */
 123    printf("Testing glProgram%sParameter4fvARB (count = %u)...\n", name, count);
 124    for ( i = 0 ; i < count ; i++ ) {
 125       (*set_parameter)(GL_VERTEX_PROGRAM_ARB, i, & param[i * 4]);
 126    }
 127
 128    for ( i = 0 ; i < count ; i++ ) {
 129       GLfloat temp[4];
 130
 131       (*get_parameter)(GL_VERTEX_PROGRAM_ARB, i, temp);
 132
 133       if ( (temp[0] != param[(i * 4) + 0])
 134            || (temp[1] != param[(i * 4) + 1])
 135            || (temp[2] != param[(i * 4) + 2])
 136            || (temp[3] != param[(i * 4) + 3]) ) {
 137          printf("Mismatch in glProgram%sParameter4fvARB index %u!\n", name, i);
 138          printf("Got { %f, %f, %f, %f }, expected { %f, %f, %f, %f }!\n",
 139                 temp[0],            temp[1],
 140                 temp[2],            temp[3],
 141                 param[(i * 4) + 0], param[(i * 4) + 1],
 142                 param[(i * 4) + 2], param[(i * 4) + 3]);
 143          pass = 0;
 144          break;
 145       }
 146    }
 147
 148
 149    if ( set_parameters == NULL ) {
 150       return pass;
 151    }
 152
 153
 154    for ( i = 0 ; i < (4 * count) ; i++ ) {
 155       param[i] = (GLfloat) random() / (GLfloat) random();
 156    }
 157
 158    printf("Testing glProgram%sParameters4fvEXT (count = %u)...\n", name, count);
 159    (*set_parameters)(GL_VERTEX_PROGRAM_ARB, 0, count, param);
 160
 161    for ( i = 0 ; i < count ; i++ ) {
 162       GLfloat temp[4];
 163
 164       (*get_parameter)(GL_VERTEX_PROGRAM_ARB, i, temp);
 165
 166       if ( (temp[0] != param[(i * 4) + 0])
 167            || (temp[1] != param[(i * 4) + 1])
 168            || (temp[2] != param[(i * 4) + 2])
 169            || (temp[3] != param[(i * 4) + 3]) ) {
 170          printf("Mismatch in glProgram%sParameters4fvEXT index %u!\n", name, i);
 171          printf("Got { %f, %f, %f, %f }, expected { %f, %f, %f, %f }!\n",
 172                 temp[0],            temp[1],
 173                 temp[2],            temp[3],
 174                 param[(i * 4) + 0], param[(i * 4) + 1],
 175                 param[(i * 4) + 2], param[(i * 4) + 3]);
 176          pass = 0;
 177          break;
 178       }
 179    }
 180
 181
 182    return pass;
 183 }
 184
 185
 186 static void Init( void )
 187 {
 188    const char * const ver_string = (const char * const)
 189        glGetString( GL_VERSION );
 190    int pass = 1;
 191    GLfloat * params;
 192    GLint max_program_env_parameters;
 193    GLint max_program_local_parameters;
 194
 195
 196    printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
 197    printf("GL_VERSION = %s\n\n", ver_string);
 198
 199    if ( !glutExtensionSupported("GL_ARB_vertex_program") ) {
 200       printf("Sorry, this program requires GL_ARB_vertex_program\n");
 201       exit(2);
 202    }
 203
 204
 205    program_local_parameter4fv = glutGetProcAddress( "glProgramLocalParameter4fvARB" );
 206    program_env_parameter4fv = glutGetProcAddress( "glProgramEnvParameter4fvARB" );
 207
 208    get_program_local_parameterfv = glutGetProcAddress( "glGetProgramLocalParameterfvARB" );
 209    get_program_env_parameterfv = glutGetProcAddress( "glGetProgramEnvParameterfvARB" );
 210
 211    bind_program = glutGetProcAddress( "glBindProgramARB" );
 212    get_program = glutGetProcAddress( "glGetProgramivARB" );
 213
 214    if ( glutExtensionSupported("GL_EXT_gpu_program_parameters") ) {
 215       printf("GL_EXT_gpu_program_parameters available, testing that path.\n");
 216
 217       program_local_parameters4fv = glutGetProcAddress( "glProgramLocalParameters4fvEXT" );
 218       program_env_parameters4fv = glutGetProcAddress( "glProgramEnvParameters4fvEXT" );
 219    }
 220    else {
 221       printf("GL_EXT_gpu_program_parameters not available.\n");
 222
 223       program_local_parameters4fv = NULL;
 224       program_env_parameters4fv = NULL;
 225    }
 226
 227
 228
 229    /* Since the test sets program local parameters, a program must be bound.
 230     * Program source, however, is not needed.
 231     */
 232    (*bind_program)(GL_VERTEX_PROGRAM_ARB, 1);
 233
 234
 235    (*get_program)(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_ENV_PARAMETERS_ARB,
 236                   & max_program_env_parameters);
 237
 238    params = malloc(max_program_env_parameters * 4 * sizeof(GLfloat));
 239
 240    pass &= set_parameter_batch(max_program_env_parameters, params, "Env",
 241                                program_env_parameter4fv,
 242                                program_env_parameters4fv,
 243                                get_program_env_parameterfv);
 244
 245
 246    (*get_program)(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB,
 247                   & max_program_local_parameters);
 248
 249    if (max_program_local_parameters > max_program_env_parameters) {
 250       params = realloc(params,
 251                        max_program_local_parameters * 4 * sizeof(GLfloat));
 252    }
 253
 254    pass &= set_parameter_batch(max_program_local_parameters, params, "Local",
 255                                program_local_parameter4fv,
 256                                program_local_parameters4fv,
 257                                get_program_local_parameterfv);
 258
 259    free(params);
 260
 261    if (! pass) {
 262       printf("FAIL!\n");
 263       exit(1);
 264    }
 265
 266    printf("PASS!\n");
 267 }
 268
 269
 270 int main( int argc, char *argv[] )
 271 {
 272    glutInit( &argc, argv );
 273    glutInitWindowPosition( 0, 0 );
 274    glutInitWindowSize( Width, Height );
 275    glutInitDisplayMode( GLUT_RGB );
 276    glutCreateWindow( "Program Parameters Test" );
 277    glutReshapeFunc( Reshape );
 278    glutKeyboardFunc( Key );
 279    glutDisplayFunc( Display );
 280    glutVisibilityFunc( Visible );
 281
 282    Init();
 283
 284    return 0;
 285 }