tests/shaders/glsl-link-initializer-02.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"),
   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 glsl-link-initializer-02.c
  26  * Test conflicting constant initializers.
  27  *
  28  * Each of the 2 shaders involved in this test have a global constant called
  29  * \c global_const.  Each has a different initializer for the constant.  The
  30  * test verifies that linking the shaders together results in an error due to
  31  * the conflicting initializer.
  32  *
  33  * \author Ian Romanick
  34  */
  35
  36 #include "piglit-util.h"
  37
  38 int piglit_width = 100, piglit_height = 100;
  39 int piglit_window_mode = GLUT_RGB | GLUT_DOUBLE;
  40
  41 enum piglit_result
  42 piglit_display(void)
  43 {
  44         return PIGLIT_FAILURE;
  45 }
  46
  47 /**
  48  * Don't use piglit_link_check_status because it will log a message to stderr
  49  * when the link fails.  Since this test wants the link to fail, logging an
  50  * error message will cause the test to be listed as "warn" instead of "pass".
  51  */
  52 GLboolean
  53 link_check_status(GLint prog)
  54 {
  55         GLint ok;
  56
  57         glGetProgramiv(prog, GL_LINK_STATUS, &ok);
  58         if (!ok) {
  59                 GLchar *info;
  60                 GLint size;
  61
  62                 glGetProgramiv(prog, GL_INFO_LOG_LENGTH, &size);
  63                 info = malloc(size);
  64
  65                 glGetProgramInfoLog(prog, size, NULL, info);
  66                 printf("Failed to link: %s\n", info);
  67
  68                 free(info);
  69         }
  70
  71         return ok;
  72 }
  73
  74 void piglit_init(int argc, char **argv)
  75 {
  76         GLint vert[2];
  77         GLint prog;
  78         GLboolean ok;
  79
  80         if (!GLEW_VERSION_2_0) {
  81                 printf("Requires OpenGL 2.0\n");
  82                 piglit_report_result(PIGLIT_SKIP);
  83         }
  84
  85         vert[0] =
  86                 piglit_compile_shader(GL_VERTEX_SHADER,
  87                                       "shaders/glsl-link-initializer-02a.vert");
  88         vert[1] =
  89                 piglit_compile_shader(GL_VERTEX_SHADER,
  90                                       "shaders/glsl-link-initializer-02b.vert");
  91
  92         prog = glCreateProgram();
  93         glAttachShader(prog, vert[0]);
  94         glAttachShader(prog, vert[1]);
  95         glLinkProgram(prog);
  96
  97         ok = link_check_status(prog);
  98         if (ok)
  99                 fprintf(stderr,
 100                         "Program should have failed linking, but "
 101                         "it was (incorrectly) successful.\n");
 102
 103         piglit_report_result((!ok) ? PIGLIT_SUCCESS : PIGLIT_FAILURE);
 104 }
 105