tests/spec/ext_framebuffer_multisample/negative-max-samples.c

   1 /*
   2  * Copyright © 2011 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 #include "piglit-util-gl.h"
  25
  26 /**
  27  * @file negative-max-samples.c
  28  *
  29  * Tests that asking for more that GL_MAX_SAMPLES fails.
  30  *
  31  * From the EXT_framebuffer_multisample spec:
  32  *
  33  *     "If either <width> or <height> is greater than
  34  *      MAX_RENDERBUFFER_SIZE_EXT, or if <samples> is greater than
  35  *      MAX_SAMPLES_EXT, then the error INVALID_VALUE is generated."
  36  *
  37  * Skips if ARB_texture_multisample or ARB_internalformat_query are
  38  * supported. ARB_texture_multisample changes the error which should
  39  * be generated; ARB_internalformat_query allows the limit for particular
  40  * internalformats to be >MAX_SAMPLES.
  41  */
  42
  43 PIGLIT_GL_TEST_CONFIG_BEGIN
  44
  45         config.supports_gl_compat_version = 10;
  46
  47         config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
  48         config.khr_no_error_support = PIGLIT_HAS_ERRORS;
  49
  50 PIGLIT_GL_TEST_CONFIG_END
  51
  52 enum piglit_result
  53 piglit_display(void)
  54 {
  55         /* UNREACHED */
  56         return PIGLIT_FAIL;
  57 }
  58
  59 void
  60 piglit_init(int argc, char **argv)
  61 {
  62         GLint max_samples;
  63         GLuint rb;
  64
  65         piglit_require_extension("GL_EXT_framebuffer_multisample");
  66
  67         if (piglit_is_extension_supported("GL_ARB_internalformat_query")) {
  68                 printf("ARB_internalformat_query is supported and "
  69                        "redefines this behavior; skipping\n");
  70                 piglit_report_result(PIGLIT_SKIP);
  71         }
  72         if (piglit_is_extension_supported("GL_ARB_texture_multisample")) {
  73                 printf("ARB_texture_multisample is supposed and "
  74                        "redefines this behavior; skipping\n");
  75                 piglit_report_result(PIGLIT_SKIP);
  76         }
  77
  78         glGetIntegerv(GL_MAX_SAMPLES, &max_samples);
  79
  80         glGenRenderbuffersEXT(1, &rb);
  81         glBindRenderbufferEXT(GL_RENDERBUFFER, rb);
  82
  83         glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER,
  84                                             max_samples + 1,
  85                                             GL_RGBA,
  86                                             1, 1);
  87         if (!piglit_check_gl_error(GL_INVALID_VALUE))
  88                 piglit_report_result(PIGLIT_FAIL);
  89
  90         glDeleteRenderbuffersEXT(1, &rb);
  91
  92         piglit_report_result(PIGLIT_PASS);
  93 }