tests/shaders/vp-address-03.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 vp-address-03.c
  26  * Validate the vectored address registers in GL_NV_vertex_program2_option
  27  *
  28  * \author Ian Romanick <ian.d.romanick@intel.com>
  29  */
  30
  31 #include "piglit-util-gl.h"
  32
  33 #define TEST_ROWS  1
  34 #define TEST_COLS  4
  35 #define BOX_SIZE   32
  36
  37 PIGLIT_GL_TEST_CONFIG_BEGIN
  38
  39         config.supports_gl_compat_version = 10;
  40
  41         config.window_width = (((BOX_SIZE+1)*TEST_COLS)+1);
  42         config.window_height = (((BOX_SIZE+1)*TEST_ROWS)+1);
  43         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  44
  45 PIGLIT_GL_TEST_CONFIG_END
  46
  47 static const char vertex_source_template[] =
  48         "!!ARBvp1.0\n"
  49         "OPTION NV_vertex_program2;\n"
  50         "PARAM  colors[] = { program.env[0..3] };\n"
  51         "ADDRESS        A0;\n"
  52         "\n"
  53         "ARL    A0, vertex.attrib[1];\n"
  54         "MOV    result.color, colors[A0.%c];\n"
  55         PIGLIT_VERTEX_PROGRAM_MVP_TRANSFORM
  56         "END\n"
  57         ;
  58
  59
  60 /**
  61  * \name Handles to programs.
  62  */
  63 /*@{*/
  64 static GLint progs[TEST_COLS];
  65 /*@}*/
  66
  67
  68 enum piglit_result
  69 piglit_display(void)
  70 {
  71         static const GLfloat color[4] = { 0.0, 1.0, 0.0, 1.0 };
  72         static const GLfloat bad_color[4] = { 1.0, 0.0, 0.0, 1.0 };
  73         enum piglit_result result = PIGLIT_PASS;
  74         unsigned i;
  75
  76         glClear(GL_COLOR_BUFFER_BIT);
  77
  78         glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 0, bad_color);
  79         glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 1, color);
  80         glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 2, color);
  81         glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 3, color);
  82
  83         for (i = 0; i < ARRAY_SIZE(progs); i++) {
  84                 const int x = 1 + (i * (BOX_SIZE + 1));
  85
  86                 glBindProgramARB(GL_VERTEX_PROGRAM_ARB, progs[i]);
  87
  88                 if (i == 0) {
  89                         glVertexAttrib4fARB(1, 1.0, 0.0, 0.0, 0.0);
  90                 } else {
  91                         glVertexAttrib4fARB(1, 0.0, 1.0, 2.0, 3.0);
  92                 }
  93
  94                 piglit_draw_rect(x, 1, BOX_SIZE, BOX_SIZE);
  95
  96                 if (!piglit_probe_pixel_rgb(x + (BOX_SIZE / 2),
  97                                             1 + (BOX_SIZE / 2),
  98                                             color)) {
  99                         result = PIGLIT_FAIL;
 100                 }
 101         }
 102
 103         piglit_present_results();
 104         return result;
 105 }
 106
 107
 108 void
 109 piglit_init(int argc, char **argv)
 110 {
 111         static const char components[] = "xyzw";
 112         unsigned i;
 113
 114         (void) argc;
 115         (void) argv;
 116
 117         piglit_require_vertex_program();
 118         piglit_require_extension("GL_NV_vertex_program2_option");
 119         piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
 120
 121         for (i = 0; i < ARRAY_SIZE(progs); i++) {
 122                 char shader_source[1024];
 123
 124                 snprintf(shader_source, sizeof(shader_source),
 125                          vertex_source_template, components[i]);
 126
 127                 progs[i] = piglit_compile_program(GL_VERTEX_PROGRAM_ARB,
 128                                                   shader_source);
 129         }
 130
 131         glEnable(GL_VERTEX_PROGRAM_ARB);
 132
 133         glClearColor(0.5, 0.5, 0.5, 1.0);
 134 }