tests/shaders/vp-address-05.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-05.c
  26  * Simple test of the ARA instruction from 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         "ARA    A0.xy, A0;\n"
  55         "MOV    result.color, colors[A0.%c];\n"
  56         PIGLIT_VERTEX_PROGRAM_MVP_TRANSFORM
  57         "END\n"
  58         ;
  59
  60
  61 /**
  62  * \name Handles to programs.
  63  */
  64 /*@{*/
  65 static GLint progs[TEST_COLS];
  66 /*@}*/
  67
  68
  69 enum piglit_result
  70 piglit_display(void)
  71 {
  72         static const GLfloat color[4] = { 0.0, 1.0, 0.0, 1.0 };
  73         static const GLfloat bad_color[4] = { 1.0, 0.0, 0.0, 1.0 };
  74         static const GLfloat attrib[4][4] = {
  75                 { 1.0, -37.0, 1.0, 68.2 },
  76                 { -37.0, 1.0, 68.2, 1.0 },
  77                 { 0.0, 3.0, 2.0, 1.0 },
  78                 { 0.0, 3.0, 1.0, 2.0 },
  79         };
  80         enum piglit_result result = PIGLIT_PASS;
  81         unsigned i;
  82
  83         glClear(GL_COLOR_BUFFER_BIT);
  84
  85         glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 0, bad_color);
  86         glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 1, bad_color);
  87         glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 2, color);
  88         glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 3, bad_color);
  89
  90         for (i = 0; i < ARRAY_SIZE(progs); i++) {
  91                 const int x = 1 + (i * (BOX_SIZE + 1));
  92
  93                 glBindProgramARB(GL_VERTEX_PROGRAM_ARB, progs[i]);
  94
  95                 glVertexAttrib4fvARB(1, attrib[i]);
  96
  97                 piglit_draw_rect(x, 1, BOX_SIZE, BOX_SIZE);
  98
  99                 if (!piglit_probe_pixel_rgb(x + (BOX_SIZE / 2),
 100                                             1 + (BOX_SIZE / 2),
 101                                             color)) {
 102                         result = PIGLIT_FAIL;
 103                 }
 104         }
 105
 106         piglit_present_results();
 107         return result;
 108 }
 109
 110
 111 void
 112 piglit_init(int argc, char **argv)
 113 {
 114         static const char components[] = "xyzw";
 115         unsigned i;
 116
 117         (void) argc;
 118         (void) argv;
 119
 120         piglit_require_vertex_program();
 121         piglit_require_extension("GL_NV_vertex_program2_option");
 122         piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
 123
 124         for (i = 0; i < ARRAY_SIZE(progs); i++) {
 125                 char shader_source[1024];
 126
 127                 snprintf(shader_source, sizeof(shader_source),
 128                          vertex_source_template, components[i]);
 129
 130                 progs[i] = piglit_compile_program(GL_VERTEX_PROGRAM_ARB,
 131                                                   shader_source);
 132         }
 133
 134         glEnable(GL_VERTEX_PROGRAM_ARB);
 135
 136         glClearColor(0.5, 0.5, 0.5, 1.0);
 137 }