tests/spec/gles-2.0/link-no-vsfs.c

   1 /*
   2  * Copyright © 2013 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
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 /** @file link-no-vsfs.c
  25  *
  26  * From the GLES 2.0.25 spec (page 30):
  27  *
  28  *     "Linking can fail for a variety of reasons as specified in the
  29  *      OpenGL ES Shading Language Specification. Linking will also
  30  *      fail if one or more of the shader objects, attached to program
  31  *      are not compiled successfully, if program does not contain
  32  *      both a vertex shader and a fragment shader, or if more active
  33  *      uniform or active sampler variables are used in program than
  34  *      allowed (see section 2.10.4).
  35  *
  36  * This also appears in the 3.0.2 spec, page 48.
  37  */
  38
  39 #include "piglit-util-gl.h"
  40
  41 PIGLIT_GL_TEST_CONFIG_BEGIN
  42
  43         config.supports_gl_es_version = 20;
  44
  45         config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
  46
  47 PIGLIT_GL_TEST_CONFIG_END
  48
  49 enum piglit_result
  50 piglit_display(void)
  51 {
  52         /* UNREACHED */
  53         return PIGLIT_FAIL;
  54 }
  55
  56 static bool
  57 test_link_fail(GLenum target, const char *source)
  58 {
  59         GLuint shader, prog;
  60         GLint ok;
  61
  62         shader = piglit_compile_shader_text(target, source);
  63
  64         prog = glCreateProgram();
  65         glAttachShader(prog, shader);
  66         glLinkProgram(prog);
  67         glDeleteShader(shader);
  68
  69         glGetProgramiv(prog, GL_LINK_STATUS, &ok);
  70
  71         glDeleteProgram(prog);
  72         if (ok) {
  73                 fprintf(stderr,
  74                         "Linking with only a %s succeeded when it should have "
  75                         "failed:\n",
  76                         piglit_get_gl_enum_name(target));
  77                 return false;
  78         }
  79         return true;
  80 }
  81
  82 void
  83 piglit_init(int argc, char **argv)
  84 {
  85         const char *vs_source =
  86                 "void main()\n"
  87                 "{"
  88                 "       gl_Position = vec4(0);"
  89                 "}";
  90         const char *fs_source =
  91                 "precision mediump float;\n"
  92                 "void main()\n"
  93                 "{"
  94                 "       gl_FragColor = vec4(0);"
  95                 "}";
  96
  97         if (!test_link_fail(GL_VERTEX_SHADER, vs_source))
  98                 piglit_report_result(PIGLIT_FAIL);
  99         if (!test_link_fail(GL_FRAGMENT_SHADER, fs_source))
 100                 piglit_report_result(PIGLIT_FAIL);
 101
 102         piglit_report_result(PIGLIT_PASS);
 103 }