tests/spec/arb_vertex_program/getlocal4f-max.c

   1 /*
   2  * Copyright © 2013 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 /** @file getlocal4f-max.c
  25  *
  26  * Tests that we can read back all local parameters up to
  27  * GL_MAX_PROGRAM_LOCAL_PARAMETERS, even if the program reads less
  28  * than that.
  29  */
  30
  31 #include "piglit-util-gl.h"
  32
  33 PIGLIT_GL_TEST_CONFIG_BEGIN
  34
  35         config.supports_gl_compat_version = 10;
  36         config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
  37
  38 PIGLIT_GL_TEST_CONFIG_END
  39
  40 void
  41 piglit_init(int argc, char **argv)
  42 {
  43         const char *source =
  44                 "!!ARBvp1.0\n"
  45                 "OPTION ARB_position_invariant;\n"
  46                 "MOV result.color, program.local[3];\n"
  47                 "END\n";
  48         GLuint prog;
  49         GLint max_local;
  50         GLint i;
  51
  52         piglit_require_extension("GL_ARB_vertex_program");
  53
  54         prog = piglit_compile_program(GL_VERTEX_PROGRAM_ARB, source);
  55         glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prog);
  56
  57         glGetProgramivARB(GL_VERTEX_PROGRAM_ARB,
  58                           GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB, &max_local);
  59
  60         /* Limit the test to blowing through 256MB of memory. */
  61         max_local = MIN2(max_local, 1024 * 1024 * 16);
  62
  63         for (i = 0; i < max_local; i++) {
  64                 float values[4];
  65
  66                 values[0] = i * 4;
  67                 values[1] = i * 4 + 1;
  68                 values[2] = i * 4 + 2;
  69                 values[3] = i * 4 + 3;
  70
  71                 glProgramLocalParameter4fvARB(GL_VERTEX_PROGRAM_ARB, i, values);
  72         }
  73
  74         for (i = 0; i < max_local; i++) {
  75                 float values[4], get_values[4];
  76
  77                 glGetProgramLocalParameterfvARB(GL_VERTEX_PROGRAM_ARB, i,
  78                                                 get_values);
  79
  80                 values[0] = i * 4;
  81                 values[1] = i * 4 + 1;
  82                 values[2] = i * 4 + 2;
  83                 values[3] = i * 4 + 3;
  84
  85                 if (memcmp(values, get_values, sizeof(values)) != 0) {
  86                         fprintf(stderr, "Difference on "
  87                                 "glGetProgramLocalParameterfvARB(%d):\n", i);
  88                         fprintf(stderr, "expected: %f %f %f %f\n",
  89                                 values[0],
  90                                 values[1],
  91                                 values[2],
  92                                 values[3]);
  93                         fprintf(stderr, "found:    %f %f %f %f\n",
  94                                 get_values[0],
  95                                 get_values[1],
  96                                 get_values[2],
  97                                 get_values[3]);
  98                         piglit_report_result(PIGLIT_FAIL);
  99                 }
 100         }
 101
 102         piglit_report_result(PIGLIT_PASS);
 103 }
 104
 105 enum piglit_result
 106 piglit_display(void)
 107 {
 108         return PIGLIT_FAIL;
 109 }