tests/spec/glsl-1.10/execution/uniform-matrix-transposed.c

   1 /*
   2  * Copyright © 2017 Fabian Bieler
   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 uniform-matrix-transposed.c:  Test transposed matrix loading
  26  */
  27
  28 #include "piglit-util-gl.h"
  29
  30 PIGLIT_GL_TEST_CONFIG_BEGIN
  31
  32         config.supports_gl_compat_version = 20;
  33         config.window_visual = PIGLIT_GL_VISUAL_RGBA;
  34         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  35
  36 PIGLIT_GL_TEST_CONFIG_END
  37
  38 static const char *fs_text =
  39         "uniform mat4 uniformMat4t;\n"
  40         "void main()\n"
  41         "{\n"
  42         "   gl_FragColor = uniformMat4t[2];\n"
  43         "}\n";
  44
  45 enum piglit_result
  46 piglit_display(void)
  47 {
  48         glClear(GL_COLOR_BUFFER_BIT);
  49
  50         piglit_draw_rect(-1, -1, 2, 2);
  51
  52         const float expected_color[] = {0.2, 0.0, 1.0, 0.8};
  53         const bool pass = piglit_probe_pixel_rgba(piglit_width / 2,
  54                                                     piglit_height / 2,
  55                                                     expected_color);
  56
  57         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
  58 }
  59
  60 void
  61 piglit_init(int argc, char **argv)
  62 {
  63         const int program = piglit_build_simple_program(NULL, fs_text);
  64         glUseProgram(program);
  65
  66         static const float uniformMatrix[16] = {
  67                 1.0, 0.1, 0.2, 0.3,
  68                 0.0, 1.0, 0.0, 0.4,
  69                 0.0, 1.0, 1.0, 0.5,
  70                 0.6, 0.7, 0.8, 1.0
  71         };
  72         const int umat4t = glGetUniformLocation(program, "uniformMat4t");
  73         glUniformMatrix4fv(umat4t, 1, GL_TRUE, uniformMatrix);
  74 }