tests/spec/gles-2.0/multiple-shader-objects.c

   1 /* Copyright © 2013 Intel Corporation
   2  *
   3  * Permission is hereby granted, free of charge, to any person obtaining a
   4  * copy of this software and associated documentation files (the "Software"),
   5  * to deal in the Software without restriction, including without limitation
   6  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   7  * and/or sell copies of the Software, and to permit persons to whom the
   8  * Software is furnished to do so, subject to the following conditions:
   9  *
  10  * The above copyright notice and this permission notice (including the next
  11  * paragraph) shall be included in all copies or substantial portions of the
  12  * Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  20  * IN THE SOFTWARE.
  21  */
  22
  23 /**
  24  * \file
  25  *
  26  * From the OpenGL ES 2.0 spec, Section 2.10.3 Program Objects:
  27  *
  28  *      Multiple shader objects of the same type may not be attached to
  29  *      a single program object. [...] The error INVALID_OPERATION is
  30  *      generated if [...] another shader object of the same type as shader is
  31  *      already attached to program.
  32  *
  33  * This test checks that GL_INVALID_OPERATION is generated.
  34  */
  35
  36 #include "piglit-util-gl.h"
  37
  38 PIGLIT_GL_TEST_CONFIG_BEGIN
  39
  40         config.supports_gl_es_version = 20;
  41
  42 PIGLIT_GL_TEST_CONFIG_END
  43
  44 enum piglit_result
  45 piglit_display(void)
  46 {
  47         return PIGLIT_FAIL;
  48 }
  49
  50 void
  51 piglit_init(int argc, char **argv)
  52 {
  53         bool pass = true;
  54
  55         GLuint vs1 = glCreateShader(GL_VERTEX_SHADER);
  56         GLuint vs2 = glCreateShader(GL_VERTEX_SHADER);
  57
  58         GLuint fs1 = glCreateShader(GL_FRAGMENT_SHADER);
  59         GLuint fs2 = glCreateShader(GL_FRAGMENT_SHADER);
  60
  61         GLuint prog1 = glCreateProgram();
  62         GLuint prog2 = glCreateProgram();
  63
  64         if (!piglit_check_gl_error(GL_NO_ERROR))
  65                 piglit_report_result(PIGLIT_FAIL);
  66
  67         /* It's illegal to attach two vertex shaders. */
  68         glAttachShader(prog1, vs1);
  69         pass &= piglit_check_gl_error(GL_NO_ERROR);
  70
  71         glAttachShader(prog1, vs2);
  72         pass &= piglit_check_gl_error(GL_INVALID_OPERATION);
  73
  74         /* It's illegal to attach two fragment shaders. */
  75         glAttachShader(prog2, fs1);
  76         pass &= piglit_check_gl_error(GL_NO_ERROR);
  77
  78         glAttachShader(prog2, fs2);
  79         pass &= piglit_check_gl_error(GL_INVALID_OPERATION);
  80
  81         piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
  82 }