tests/shaders/glsl-link-initializer-03.c

   1 /*
   2  * Copyright © 2010 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"),
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   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 glsl-link-initializer-03.c
  26  * Test linking a single shader into two programs.
  27  *
  28  * Each of the 3 shaders involved in this test have a global variable called
  29  * \c global_variable.  Two of the shaders have (differing) initializers for
  30  * this variable, and the other lacks an initalizer.  The test verifies that
  31  * the shader lacking an initializer can successfully be linked with each of
  32  * the shaders that have initalizers.
  33  *
  34  * \author Ian Romanick
  35  */
  36
  37 #include "piglit-util-gl.h"
  38
  39 PIGLIT_GL_TEST_CONFIG_BEGIN
  40
  41         config.supports_gl_compat_version = 10;
  42
  43         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  44
  45 PIGLIT_GL_TEST_CONFIG_END
  46
  47 enum piglit_result
  48 piglit_display(void)
  49 {
  50         return PIGLIT_FAIL;
  51 }
  52
  53 void piglit_init(int argc, char **argv)
  54 {
  55         GLint vert[3];
  56         GLint prog_a;
  57         GLint prog_b;
  58         GLint prog_c;
  59         GLint prog_d;
  60
  61         piglit_require_gl_version(20);
  62
  63         vert[0] =
  64                 piglit_compile_shader(GL_VERTEX_SHADER,
  65                                       "shaders/glsl-link-initializer-01a.vert");
  66         vert[1] =
  67                 piglit_compile_shader(GL_VERTEX_SHADER,
  68                                       "shaders/glsl-link-initializer-01b.vert");
  69         vert[2] =
  70                 piglit_compile_shader(GL_VERTEX_SHADER,
  71                                       "shaders/glsl-link-initializer-01c.vert");
  72         prog_a = piglit_link_simple_program(vert[0], vert[1]);
  73         prog_b = piglit_link_simple_program(vert[1], vert[0]);
  74         prog_c = piglit_link_simple_program(vert[0], vert[2]);
  75         prog_d = piglit_link_simple_program(vert[2], vert[0]);
  76
  77         /* piglit_link_simple_program() returns 0 on link failure.  So
  78          * verify that there was no link failure by simply checking
  79          * that two programs were returned.
  80          */
  81         piglit_report_result((prog_a && prog_b && prog_c && prog_d)
  82                              ? PIGLIT_PASS : PIGLIT_FAIL);
  83 }
  84