tests/shaders/vp-address-06.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-06.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.h"
  32 #include "piglit-framework.h"
  33
  34 #define ELEMENTS(x)  (sizeof(x) / sizeof(x[0]))
  35
  36 #define TEST_ROWS  1
  37 #define TEST_COLS  2
  38 #define BOX_SIZE   32
  39
  40
  41 int piglit_window_mode = GLUT_DOUBLE;
  42 int piglit_width = (((BOX_SIZE+1)*TEST_COLS)+1);
  43 int piglit_height = (((BOX_SIZE+1)*TEST_ROWS)+1);
  44
  45
  46 static const char vertex_source_template[] =
  47         "!!ARBvp1.0\n"
  48         "OPTION NV_vertex_program2;\n"
  49         "PARAM  colors[] = { program.env[0..3] };\n"
  50         "ADDRESS        A0;\n"
  51         "\n"
  52         "ARL    A0, vertex.attrib[1];\n"
  53         "ARA    A0, A0;\n"
  54         "ADD    result.color, colors[A0.%c], 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, 0.5, 0.0, 0.5 };
  72         static const GLfloat bad_color[4] = { 1.0, 0.0, 0.0, 1.0 };
  73         static const GLfloat good_color[4] = { 0.0, 1.0, 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         };
  78         enum piglit_result result = PIGLIT_SUCCESS;
  79         unsigned i;
  80
  81         glClear(GL_COLOR_BUFFER_BIT);
  82
  83         glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 0, bad_color);
  84         glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 1, bad_color);
  85         glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 2, color);
  86         glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 3, bad_color);
  87
  88         for (i = 0; i < ELEMENTS(progs); i++) {
  89                 const int x = 1 + (i * (BOX_SIZE + 1));
  90
  91                 glBindProgramARB(GL_VERTEX_PROGRAM_ARB, progs[i]);
  92
  93                 glVertexAttrib4fvARB(1, attrib[i]);
  94
  95                 piglit_draw_rect(x, 1, BOX_SIZE, BOX_SIZE);
  96
  97                 if (!piglit_probe_pixel_rgb(x + (BOX_SIZE / 2),
  98                                             1 + (BOX_SIZE / 2),
  99                                             good_color)) {
 100                         result = PIGLIT_FAILURE;
 101                 }
 102         }
 103
 104         glutSwapBuffers();
 105         return result;
 106 }
 107
 108
 109 void
 110 piglit_init(int argc, char **argv)
 111 {
 112         static const char components[] = "xyzw";
 113         unsigned i;
 114
 115         (void) argc;
 116         (void) argv;
 117
 118         piglit_require_vertex_program();
 119         piglit_require_fragment_program();
 120         piglit_require_extension("GL_NV_vertex_program2_option");
 121         piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
 122
 123         for (i = 0; i < ELEMENTS(progs); i++) {
 124                 char shader_source[1024];
 125
 126                 snprintf(shader_source, sizeof(shader_source),
 127                          vertex_source_template,
 128                          components[i + 0],
 129                          components[i + 2]);
 130
 131                 progs[i] = piglit_compile_program(GL_VERTEX_PROGRAM_ARB,
 132                                                   shader_source);
 133         }
 134
 135         glEnable(GL_FRAGMENT_PROGRAM_ARB);
 136         glEnable(GL_VERTEX_PROGRAM_ARB);
 137         glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, piglit_ARBfp_pass_through);
 138
 139         glClearColor(0.5, 0.5, 0.5, 1.0);
 140 }