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/glew.h>
  39 #include <GL/glut.h>
  40
  41 #ifndef GL_EXT_gpu_program_parameters
  42 typedef void (APIENTRYP PFNGLPROGRAMLOCALPARAMETERS4FVEXTPROC)(GLenum,
  43     GLuint, GLsizei, const GLfloat *);
  44 typedef void (APIENTRYP PFNGLPROGRAMENVPARAMETERS4FVEXTPROC)(GLenum,
  45     GLuint, GLsizei, const GLfloat *);
  46 #endif
  47
  48 static PFNGLPROGRAMLOCALPARAMETER4FVARBPROC program_local_parameter4fv = NULL;
  49 static PFNGLGETPROGRAMLOCALPARAMETERFVARBPROC get_program_local_parameterfv = NULL;
  50 static PFNGLPROGRAMENVPARAMETER4FVARBPROC program_env_parameter4fv = NULL;
  51 static PFNGLGETPROGRAMENVPARAMETERFVARBPROC get_program_env_parameterfv = NULL;
  52 static PFNGLBINDPROGRAMARBPROC bind_program = NULL;
  53 static PFNGLGETPROGRAMIVARBPROC get_program = NULL;
  54
  55 static PFNGLPROGRAMLOCALPARAMETERS4FVEXTPROC program_local_parameters4fv = NULL;
  56 static PFNGLPROGRAMENVPARAMETERS4FVEXTPROC program_env_parameters4fv = NULL;
  57
  58 static int Width = 400;
  59 static int Height = 200;
  60 static const GLfloat Near = 5.0, Far = 25.0;
  61
  62
  63 static void Display( void )
  64 {
  65 }
  66
  67
  68 static void Idle( void )
  69 {
  70 }
  71
  72
  73 static void Visible( int vis )
  74 {
  75    if ( vis == GLUT_VISIBLE ) {
  76       glutIdleFunc( Idle );
  77    }
  78    else {
  79       glutIdleFunc( NULL );
  80    }
  81 }
  82 static void Reshape( int width, int height )
  83 {
  84    GLfloat ar = (float) width / (float) height;
  85    Width = width;
  86    Height = height;
  87    glViewport( 0, 0, width, height );
  88    glMatrixMode( GL_PROJECTION );
  89    glLoadIdentity();
  90    glFrustum( -ar, ar, -1.0, 1.0, Near, Far );
  91 }
  92
  93
  94 static void Key( unsigned char key, int x, int y )
  95 {
  96    (void) x;
  97    (void) y;
  98    switch (key) {
  99       case 27:
 100          exit(0);
 101          break;
 102    }
 103    glutPostRedisplay();
 104 }
 105
 106
 107 static int set_parameter_batch( GLsizei count, GLfloat * param,
 108                                 const char * name,
 109                                 PFNGLPROGRAMLOCALPARAMETER4FVARBPROC set_parameter,
 110                                 PFNGLPROGRAMLOCALPARAMETERS4FVEXTPROC set_parameters,
 111                                 PFNGLGETPROGRAMLOCALPARAMETERFVARBPROC get_parameter
 112                                 )
 113 {
 114    unsigned i;
 115    int pass = 1;
 116
 117
 118    for ( i = 0 ; i < (4 * count) ; i++ ) {
 119       param[i] = (GLfloat) rand() / (GLfloat) rand();
 120    }
 121
 122    /* Try using the "classic" interface.
 123     */
 124    printf("Testing glProgram%sParameter4fvARB (count = %u)...\n", name, count);
 125    for ( i = 0 ; i < count ; i++ ) {
 126       (*set_parameter)(GL_VERTEX_PROGRAM_ARB, i, & param[i * 4]);
 127    }
 128
 129    for ( i = 0 ; i < count ; i++ ) {
 130       GLfloat temp[4];
 131
 132       (*get_parameter)(GL_VERTEX_PROGRAM_ARB, i, temp);
 133
 134       if ( (temp[0] != param[(i * 4) + 0])
 135            || (temp[1] != param[(i * 4) + 1])
 136            || (temp[2] != param[(i * 4) + 2])
 137            || (temp[3] != param[(i * 4) + 3]) ) {
 138          printf("Mismatch in glProgram%sParameter4fvARB index %u!\n", name, i);
 139          printf("Got { %f, %f, %f, %f }, expected { %f, %f, %f, %f }!\n",
 140                 temp[0],            temp[1],
 141                 temp[2],            temp[3],
 142                 param[(i * 4) + 0], param[(i * 4) + 1],
 143                 param[(i * 4) + 2], param[(i * 4) + 3]);
 144          pass = 0;
 145          break;
 146       }
 147    }
 148
 149
 150    if ( set_parameters == NULL ) {
 151       return pass;
 152    }
 153
 154
 155    for ( i = 0 ; i < (4 * count) ; i++ ) {
 156       param[i] = (GLfloat) rand() / (GLfloat) rand();
 157    }
 158
 159    printf("Testing glProgram%sParameters4fvEXT (count = %u)...\n", name, count);
 160    (*set_parameters)(GL_VERTEX_PROGRAM_ARB, 0, count, param);
 161
 162    for ( i = 0 ; i < count ; i++ ) {
 163       GLfloat temp[4];
 164
 165       (*get_parameter)(GL_VERTEX_PROGRAM_ARB, i, temp);
 166
 167       if ( (temp[0] != param[(i * 4) + 0])
 168            || (temp[1] != param[(i * 4) + 1])
 169            || (temp[2] != param[(i * 4) + 2])
 170            || (temp[3] != param[(i * 4) + 3]) ) {
 171          printf("Mismatch in glProgram%sParameters4fvEXT index %u!\n", name, i);
 172          printf("Got { %f, %f, %f, %f }, expected { %f, %f, %f, %f }!\n",
 173                 temp[0],            temp[1],
 174                 temp[2],            temp[3],
 175                 param[(i * 4) + 0], param[(i * 4) + 1],
 176                 param[(i * 4) + 2], param[(i * 4) + 3]);
 177          pass = 0;
 178          break;
 179       }
 180    }
 181
 182
 183    return pass;
 184 }
 185
 186
 187 static void Init( void )
 188 {
 189    const char * const ver_string = (const char * const)
 190        glGetString( GL_VERSION );
 191    int pass = 1;
 192    GLfloat * params;
 193    GLint max_program_env_parameters;
 194    GLint max_program_local_parameters;
 195    int i;
 196
 197
 198    printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
 199    printf("GL_VERSION = %s\n\n", ver_string);
 200
 201    if ( !glutExtensionSupported("GL_ARB_vertex_program") ) {
 202       printf("Sorry, this program requires GL_ARB_vertex_program\n");
 203       exit(2);
 204    }
 205
 206
 207    program_local_parameter4fv = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC) glutGetProcAddress( "glProgramLocalParameter4fvARB" );
 208    program_env_parameter4fv = (PFNGLPROGRAMENVPARAMETER4FVARBPROC) glutGetProcAddress( "glProgramEnvParameter4fvARB" );
 209
 210    get_program_local_parameterfv = (PFNGLGETPROGRAMLOCALPARAMETERFVARBPROC) glutGetProcAddress( "glGetProgramLocalParameterfvARB" );
 211    get_program_env_parameterfv = (PFNGLGETPROGRAMENVPARAMETERFVARBPROC) glutGetProcAddress( "glGetProgramEnvParameterfvARB" );
 212
 213    bind_program = (PFNGLBINDPROGRAMARBPROC) glutGetProcAddress( "glBindProgramARB" );
 214    get_program = (PFNGLGETPROGRAMIVARBPROC) glutGetProcAddress( "glGetProgramivARB" );
 215
 216    if ( glutExtensionSupported("GL_EXT_gpu_program_parameters") ) {
 217       printf("GL_EXT_gpu_program_parameters available, testing that path.\n");
 218
 219       program_local_parameters4fv = (PFNGLPROGRAMLOCALPARAMETERS4FVEXTPROC) glutGetProcAddress( "glProgramLocalParameters4fvEXT" );
 220       program_env_parameters4fv = (PFNGLPROGRAMENVPARAMETERS4FVEXTPROC) glutGetProcAddress( "glProgramEnvParameters4fvEXT" );
 221    }
 222    else {
 223       printf("GL_EXT_gpu_program_parameters not available.\n");
 224
 225       program_local_parameters4fv = NULL;
 226       program_env_parameters4fv = NULL;
 227    }
 228
 229
 230
 231    /* Since the test sets program local parameters, a program must be bound.
 232     * Program source, however, is not needed.
 233     */
 234    (*bind_program)(GL_VERTEX_PROGRAM_ARB, 1);
 235
 236
 237    (*get_program)(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_ENV_PARAMETERS_ARB,
 238                   & max_program_env_parameters);
 239
 240    params = malloc(max_program_env_parameters * 4 * sizeof(GLfloat));
 241
 242    for (i = 0; i < max_program_env_parameters * 4; i++) {
 243       params[i] = 0.0F;
 244    }
 245
 246    pass &= set_parameter_batch(max_program_env_parameters, params, "Env",
 247                                program_env_parameter4fv,
 248                                program_env_parameters4fv,
 249                                get_program_env_parameterfv);
 250
 251
 252    (*get_program)(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB,
 253                   & max_program_local_parameters);
 254
 255    if (max_program_local_parameters > max_program_env_parameters) {
 256       params = realloc(params,
 257                        max_program_local_parameters * 4 * sizeof(GLfloat));
 258    }
 259
 260    pass &= set_parameter_batch(max_program_local_parameters, params, "Local",
 261                                program_local_parameter4fv,
 262                                program_local_parameters4fv,
 263                                get_program_local_parameterfv);
 264
 265    free(params);
 266
 267    if (! pass) {
 268       printf("FAIL!\n");
 269       exit(1);
 270    }
 271
 272    printf("PASS!\n");
 273 }
 274
 275
 276 int main( int argc, char *argv[] )
 277 {
 278    glutInit( &argc, argv );
 279    glutInitWindowPosition( 0, 0 );
 280    glutInitWindowSize( Width, Height );
 281    glutInitDisplayMode( GLUT_RGB );
 282    glutCreateWindow( "Program Parameters Test" );
 283    glewInit();
 284    glutReshapeFunc( Reshape );
 285    glutKeyboardFunc( Key );
 286    glutDisplayFunc( Display );
 287    glutVisibilityFunc( Visible );
 288
 289    Init();
 290
 291    return 0;
 292 }