tests/spec/glsl-1.10/execution/glsl-render-after-bad-attach.c

   1 /*
   2  * Copyright © 2012 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  * Authors:
  24  *    Eric Anholt <eric@anholt.net>
  25  *
  26  */
  27
  28 /** @file glsl-render-bad-attach.c
  29  *
  30  * Tests that rendering with a good program after attaching a bad
  31  * shader to it still works.
  32  */
  33
  34 #include "piglit-util-gl.h"
  35
  36 PIGLIT_GL_TEST_CONFIG_BEGIN
  37
  38         config.supports_gl_compat_version = 10;
  39         config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
  40
  41 PIGLIT_GL_TEST_CONFIG_END
  42
  43 const char *vs_source =
  44         "void main()\n"
  45         "{\n"
  46         "       gl_Position = gl_Vertex;\n"
  47         "}\n";
  48
  49 const char *good_fs_source =
  50         "void main()\n"
  51         "{\n"
  52         "       gl_FragColor = vec4(0.0, 1.0, 0.0, 0.0);\n"
  53         "}\n";
  54
  55 const char *bad_fs_source =
  56         "void BAD_FUNC()\n"
  57         "{\n"
  58         "       BAD;\n"
  59         "}\n";
  60
  61 enum piglit_result
  62 piglit_display(void)
  63 {
  64         bool pass = GL_TRUE;
  65         GLint ok;
  66         float green[4] = {0, 1, 0, 0};
  67         GLuint good_fs, bad_fs, vs, prog;
  68
  69         glClearColor(0.0, 1.0, 0.0, 0.0);
  70         glClear(GL_COLOR_BUFFER_BIT);
  71
  72         vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_source);
  73         good_fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER,
  74                                              good_fs_source);
  75         prog = piglit_link_simple_program(vs, good_fs);
  76         if (!vs || !good_fs || !prog)
  77                 piglit_report_result(PIGLIT_FAIL);
  78
  79         glUseProgram(prog);
  80
  81         piglit_draw_rect(-1, -1, 1, 2);
  82
  83         bad_fs = glCreateShader(GL_FRAGMENT_SHADER);
  84         glShaderSource(bad_fs, 1, (const GLchar **) &bad_fs_source, NULL);
  85         glCompileShader(bad_fs);
  86         glGetShaderiv(bad_fs, GL_COMPILE_STATUS, &ok);
  87         if (ok)
  88                 piglit_report_result(PIGLIT_FAIL);
  89         glAttachShader(prog, bad_fs);
  90
  91         piglit_draw_rect(0, -1, 1, 2);
  92
  93         pass = piglit_probe_rect_rgba(0, 0,
  94                                       piglit_width, piglit_height,
  95                                       green);
  96
  97         piglit_present_results();
  98
  99         glDeleteShader(good_fs);
 100         glDeleteShader(bad_fs);
 101         glDeleteShader(vs);
 102         glDeleteProgram(prog);
 103
 104         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
 105 }
 106
 107 void
 108 piglit_init(int argc, char **argv)
 109 {
 110         piglit_require_GLSL();
 111 }