tests/spec/arb_clear_texture/srgb.c

   1 /*
   2  * Copyright (c) 2014 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 /** @file srgb.c
  25  *
  26  * Test using glClearTexSubImage with sRGB-format textures. This is
  27  * interesting to test because the clear implementation should not be
  28  * applying the sRGB conversion but a naïve implementation using
  29  * glClear might accidentally do so.
  30  */
  31
  32 #include "common.h"
  33
  34 PIGLIT_GL_TEST_CONFIG_BEGIN
  35
  36         config.supports_gl_compat_version = 13;
  37
  38         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  39
  40         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  41
  42 PIGLIT_GL_TEST_CONFIG_END
  43
  44 static const struct format
  45 formats[] = {
  46         { GL_SRGB_EXT, GL_RGB, GL_UNSIGNED_BYTE, 3 },
  47         { GL_SRGB8_EXT, GL_RGB, GL_UNSIGNED_BYTE, 3 },
  48         { GL_SRGB_ALPHA_EXT, GL_RGBA, GL_UNSIGNED_BYTE, 4 },
  49         { GL_SRGB8_ALPHA8_EXT, GL_RGBA, GL_UNSIGNED_BYTE, 4 }
  50 };
  51
  52 void
  53 piglit_init(int argc, char **argv)
  54 {
  55         bool pass;
  56
  57         /* sRGB textures are supported in GL 2.1 or with the
  58          * GL_EXT_texture_sRGB extension
  59          */
  60         if (piglit_get_gl_version() < 21 &&
  61             !piglit_is_extension_supported("GL_EXT_texture_sRGB")) {
  62                 piglit_report_result(PIGLIT_SKIP);
  63         }
  64
  65         if (piglit_get_gl_version() >= 30 ||
  66             piglit_is_extension_supported("GL_EXT_framebuffer_sRGB")) {
  67                 /* Enable SRGB. This shouldn't affect the results of
  68                  * the test because the clear value should be treated
  69                  * like as in glTexImage2D and so they shouldn't be
  70                  * converted. Enabling it tests that the GL
  71                  * successfully ignores it.
  72                  */
  73                 glEnable(GL_FRAMEBUFFER_SRGB);
  74         }
  75
  76         pass = test_formats(formats, ARRAY_SIZE(formats));
  77
  78         piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
  79 }
  80
  81 enum piglit_result
  82 piglit_display(void)
  83 {
  84         /* unused */
  85         return PIGLIT_FAIL;
  86 }