tests/shaders/glsl-empty-vs-no-fs.c

   1 /*
   2  * Copyright 2009 VMware, Inc.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sub license, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial portions
  15  * of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  20  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  * Authors:
  26  *    Alex Corscadden
  27  *    Vinson Lee
  28  */
  29
  30 /*
  31  * Test an empty GLSL vertex shader without a fragment shader. The program
  32  * may not link, but if it does, should not trigger a driver crash.
  33  *
  34  */
  35
  36 #include "piglit-util-gl.h"
  37
  38 PIGLIT_GL_TEST_CONFIG_BEGIN
  39
  40         config.supports_gl_compat_version = 10;
  41
  42         config.window_width = 250;
  43         config.window_height = 250;
  44         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  45
  46 PIGLIT_GL_TEST_CONFIG_END
  47
  48 static const char *vs_source = "void main() {}";
  49
  50 enum piglit_result
  51 piglit_display(void)
  52 {
  53         GLint vs;
  54         GLint prog;
  55         GLint linked;
  56         int i;
  57
  58         for (i = 0; i < 32; i++) {
  59                 vs = glCreateShader(GL_VERTEX_SHADER);
  60                 glShaderSource(vs, 1, &vs_source, NULL);
  61                 glCompileShader(vs);
  62
  63                 prog = glCreateProgram();
  64                 glAttachShader(prog, vs);
  65                 glLinkProgram(prog);
  66                 glGetProgramiv(prog, GL_LINK_STATUS, &linked);
  67                 if (linked) {
  68                         glUseProgram(prog);
  69                 }
  70
  71                 glFlush();
  72
  73                 glDeleteProgram(prog);
  74                 glDeleteShader(vs);
  75         }
  76
  77         return PIGLIT_PASS;
  78 }
  79
  80 void
  81 piglit_init(int argc, char **argv)
  82 {
  83         piglit_require_gl_version(20);
  84 }