tests/spec/ext_framebuffer_multisample/negative-copypixels.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-copypixels.c
  28  *
  29  * From the EXT_framebuffer_multisample spec:
  30  *
  31  *     "Finally, the behavior of several GL operations is specified
  32  *      "as if the arguments were passed to CopyPixels."  These
  33  *      operations include: CopyTex{Sub}Image*, CopyColor{Sub}Table,
  34  *      and CopyConvolutionFilter*.  INVALID_FRAMEBUFFER_OPERATION_EXT
  35  *      will be generated if an attempt is made to execute one of
  36  *      these operations, or CopyPixels, while the object bound to
  37  *      READ_FRAMEBUFFER_BINDING_EXT (section 4.4) is not "framebuffer
  38  *      complete" (as defined in section 4.4.4.2).  INVALID_OPERATION
  39  *      will be generated if the object bound to
  40  *      READ_FRAMEBUFFER_BINDING_EXT is "framebuffer complete" and the
  41  *      value of SAMPLE_BUFFERS is greater than zero."
  42  *
  43  * The Errors section says that these and ReadPixels report
  44  * "INVALID_OPERATION_EXT", but that appears to be a typo.
  45  */
  46
  47 PIGLIT_GL_TEST_CONFIG_BEGIN
  48
  49         config.supports_gl_compat_version = 10;
  50
  51         config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
  52         config.khr_no_error_support = PIGLIT_HAS_ERRORS;
  53
  54 PIGLIT_GL_TEST_CONFIG_END
  55
  56 enum piglit_result
  57 piglit_display(void)
  58 {
  59         /* UNREACHED */
  60         return PIGLIT_FAIL;
  61 }
  62
  63 void
  64 piglit_init(int argc, char **argv)
  65 {
  66         GLint max_samples;
  67         GLuint rb, fb;
  68         GLenum status;
  69         bool pass = true;
  70
  71         piglit_require_extension("GL_EXT_framebuffer_multisample");
  72
  73         glGetIntegerv(GL_MAX_SAMPLES, &max_samples);
  74
  75         glGenFramebuffersEXT(1, &fb);
  76         glBindFramebufferEXT(GL_FRAMEBUFFER, fb);
  77
  78         glGenRenderbuffersEXT(1, &rb);
  79         glBindRenderbufferEXT(GL_RENDERBUFFER, rb);
  80         glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER, max_samples,
  81                                             GL_RGBA, 1, 1);
  82
  83         glFramebufferRenderbufferEXT(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
  84                                      GL_RENDERBUFFER, rb);
  85
  86         glDrawBuffer(GL_COLOR_ATTACHMENT0);
  87         glReadBuffer(GL_COLOR_ATTACHMENT0);
  88
  89         status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER);
  90         if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
  91                 fprintf(stderr, "FBO incomplete\n");
  92                 piglit_report_result(PIGLIT_FAIL);
  93         }
  94
  95         /* Finally, the actual test! */
  96         glCopyPixels(0, 0, 1, 1, GL_COLOR);
  97         if (!piglit_check_gl_error(GL_INVALID_OPERATION))
  98                 piglit_report_result(PIGLIT_FAIL);
  99
 100         glDeleteRenderbuffersEXT(1, &rb);
 101         glDeleteFramebuffersEXT(1, &fb);
 102
 103         piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
 104 }