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/*
* Copyright © 2009 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.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*
*/
/** @file read-front.c
*
* Tests that reading the front buffer after a draw to back and swap
* works correctly.
*
* This catches a regression in the Intel driver with DRI2, where the
* read buffer didn't have an actual buffer present if it hadn't been
* used as a draw buffer.
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
config.requires_displayed_window = true;
config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_DEPTH | PIGLIT_GL_VISUAL_STENCIL;
PIGLIT_GL_TEST_CONFIG_END
enum piglit_result
piglit_display(void)
{
GLboolean pass = GL_TRUE;
static float blue[] = {0.0, 0.0, 1.0, 0.0};
static float green[] = {0.0, 1.0, 0.0, 0.0};
piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
glClearColor(0.0, 0.0, 1.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
glColor4fv(green);
piglit_draw_rect(0, piglit_height / 2, piglit_width, piglit_height);
glReadBuffer(GL_FRONT);
piglit_swap_buffers();
pass &= piglit_probe_rect_rgb(0, 0,
piglit_width, piglit_height / 2, blue);
pass &= piglit_probe_rect_rgb(0, piglit_height / 2,
piglit_width, piglit_height / 2, green);
glReadBuffer(GL_BACK);
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
void
piglit_init(int argc, char **argv)
{
}
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