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/*
* Copyright © 2012 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
/**
* @file blit-mismatched-samples.cpp
*
* This test verifies if glBlitFramebuffer() throws GL_INVALID_OPERATION with
* non-matching samples in multisample framebuffer objects.
*
* We initialize two FBOs with different sample counts, do blitting operation
* and then query the gl error.
*
* Author: Anuj Phogat <anuj.phogat@gmail.com>
*/
#include "common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
config.window_width = 256;
config.window_height = 256;
config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
PIGLIT_GL_TEST_CONFIG_END
const int pattern_width = 256; const int pattern_height = 256;
Fbo src_fbo, dst_fbo;
enum piglit_result
piglit_display()
{
bool pass = true;
/* Blit multisample-to-multisample with non-matching sample count */
glBindFramebuffer(GL_READ_FRAMEBUFFER, src_fbo.handle);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, dst_fbo.handle);
glBlitFramebuffer(0, 0, pattern_width, pattern_height,
0, 0, pattern_width, pattern_height,
GL_COLOR_BUFFER_BIT, GL_NEAREST);
/* Here GL_INVALID_OPERATION is an expected gl error */
pass = piglit_check_gl_error(GL_INVALID_OPERATION) && pass;
return (pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
void
piglit_init(int argc, char **argv)
{
GLint samples, max_samples;
piglit_require_gl_version(30);
/* OpenGL driver is supposed to round up the specified sample count to
* the next available sample count. So, this will create the FBO with
* minimum supported sample count.
*/
src_fbo.setup(FboConfig(1 /* sample count */,
pattern_width,
pattern_height));
glGetIntegerv(GL_MAX_SAMPLES, &max_samples);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, src_fbo.handle);
glGetIntegerv(GL_SAMPLES, &samples);
/* Skip the test if samples = GL_MAX_SAMPLES */
if (samples == max_samples) {
printf("OpenGL driver seems to support only one possible"
" sample count\n");
piglit_report_result(PIGLIT_SKIP);
}
/* Creating FBO with (samples + 1) ensures that we get a different
* value of sample count in dst_fbo.
*/
dst_fbo.setup(FboConfig(samples + 1, pattern_width, pattern_height));
if (!piglit_check_gl_error(GL_NO_ERROR)) {
printf("Error setting up frame buffer objects\n");
piglit_report_result(PIGLIT_FAIL);
}
}
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