tests/shaders/fp-set-01.c

   1 /*
   2  * Copyright © 2009 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 /**
  25  * \file fp-set-01.c
  26  * Validate the two set-on instructions in GL_ARB_fragment_program
  27  *
  28  * \author Ian Romanick <ian.d.romanick@intel.com>
  29  */
  30
  31 #include "piglit-util-gl.h"
  32
  33 /* One column for each possible combination of set-on results
  34  */
  35 #define TEST_COLS  16
  36
  37 /* One for the reference square and each of the 2 set-on instructions
  38  */
  39 #define TEST_ROWS  3
  40
  41 #define BOX_SIZE   16
  42
  43 PIGLIT_GL_TEST_CONFIG_BEGIN
  44
  45         config.supports_gl_compat_version = 10;
  46
  47         config.window_width = (((BOX_SIZE+1)*TEST_COLS)+1);
  48         config.window_height = (((BOX_SIZE+1)*TEST_ROWS)+1);
  49         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  50
  51 PIGLIT_GL_TEST_CONFIG_END
  52
  53 /**
  54  * Source for the fragment program to render the reference box.
  55  */
  56 static const char reference_shader_source[] =
  57         "!!ARBfp1.0\n"
  58         "MOV    result.color, program.env[0];\n"
  59         "END"
  60         ;
  61
  62 static const char slt_shader_source[] =
  63         "!!ARBfp1.0\n"
  64         "SLT    result.color, program.env[1], fragment.color;\n"
  65         "END"
  66         ;
  67
  68 static const char sge_shader_source[] =
  69         "!!ARBfp1.0\n"
  70         "SGE    result.color, fragment.color, program.env[1];\n"
  71         "END"
  72         ;
  73
  74 /**
  75  * \name Handles to fragment programs.
  76  */
  77 /*@{*/
  78 static GLint reference_prog;
  79 static GLint progs[2];
  80 /*@}*/
  81
  82
  83 enum piglit_result
  84 piglit_display(void)
  85 {
  86         const GLfloat comparator[4] = { 0.5, 0.5, 0.5, 0.5 };
  87         unsigned i;
  88         unsigned j;
  89         enum piglit_result result = PIGLIT_PASS;
  90
  91
  92         glClear(GL_COLOR_BUFFER_BIT);
  93         glEnable(GL_FRAGMENT_PROGRAM_ARB);
  94
  95         for (i = 0; i < TEST_COLS; i++) {
  96                 const int x = (i * (BOX_SIZE + 1)) + 1;
  97                 GLfloat color[4];
  98
  99                 color[0] = (i & 0x01) ? 1.0 : 0.0;
 100                 color[1] = (i & 0x02) ? 1.0 : 0.0;
 101                 color[2] = (i & 0x04) ? 1.0 : 0.0;
 102                 color[3] = (i & 0x08) ? 1.0 : 0.0;
 103
 104                 glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, reference_prog);
 105
 106                 glProgramEnvParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 0,
 107                                             color);
 108                 glProgramEnvParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 1,
 109                                             comparator);
 110
 111                 piglit_draw_rect(x, 1, BOX_SIZE, BOX_SIZE);
 112
 113                 glColor4fv(color);
 114
 115                 for (j = 0; j < ARRAY_SIZE(progs); j++) {
 116                         const int y = ((j + 1) * (BOX_SIZE + 1)) + 1;
 117
 118                         glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, progs[j]);
 119                         piglit_draw_rect(x, y, BOX_SIZE, BOX_SIZE);
 120
 121                         if (!piglit_probe_pixel_rgb(x + (BOX_SIZE / 2),
 122                                                     y + (BOX_SIZE / 2),
 123                                                     color)) {
 124                                 if (!piglit_automatic)
 125                                         printf("shader %u failed on index %u\n",
 126                                                j, i);
 127
 128                                 result = PIGLIT_FAIL;
 129                         }
 130                 }
 131         }
 132
 133         piglit_present_results();
 134         return result;
 135 }
 136
 137
 138 void
 139 piglit_init(int argc, char **argv)
 140 {
 141         (void) argc;
 142         (void) argv;
 143
 144         piglit_require_fragment_program();
 145         piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
 146
 147         reference_prog = piglit_compile_program(GL_FRAGMENT_PROGRAM_ARB,
 148                                                 reference_shader_source);
 149
 150         progs[0] = piglit_compile_program(GL_FRAGMENT_PROGRAM_ARB,
 151                                           slt_shader_source);
 152         progs[1] = piglit_compile_program(GL_FRAGMENT_PROGRAM_ARB,
 153                                           sge_shader_source);
 154
 155         glClearColor(1.0, 1.0, 1.0, 1.0);
 156 }