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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 pbo-read-argb8888.c
*
* Tests that reading 1x1 BGRA UNSIGNED_BYTE buffers work correctly.
*
* This test should hit the blit-based readpixels in the intel driver.
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.window_width = 100;
config.window_height = 100;
config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
PIGLIT_GL_TEST_CONFIG_END
static GLboolean
probe(int x, int y, uint32_t expected, uint32_t observed)
{
if ((expected & 0xffffff) != (observed & 0xffffff)) {
printf("Probe at (%i,%i)\n", x, y);
printf(" Expected: 0x%08x\n", expected);
printf(" Observed: 0x%08x\n", observed);
return GL_FALSE;
} else {
return GL_TRUE;
}
}
enum piglit_result
piglit_display(void)
{
GLboolean pass = GL_TRUE;
static float red[] = {1.0, 0.0, 0.0, 0.0};
static float green[] = {0.0, 1.0, 0.0, 0.0};
uint32_t *addr;
GLuint pbo;
glGenBuffersARB(1, &pbo);
glBindBufferARB(GL_PIXEL_PACK_BUFFER, pbo);
glBufferDataARB(GL_PIXEL_PACK_BUFFER, 2 * 4, NULL, GL_STREAM_DRAW_ARB);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glColor4fv(green);
piglit_draw_rect(0, 0, piglit_width / 2, piglit_height);
glColor4fv(red);
piglit_draw_rect(piglit_width / 2, 0, piglit_width / 2, piglit_height);
glReadPixels(10, 10, 1, 1,
GL_BGRA, GL_UNSIGNED_BYTE, (void *)(uintptr_t)0);
glReadPixels(piglit_width - 10, 10, 1, 1,
GL_BGRA, GL_UNSIGNED_BYTE, (void *)(uintptr_t)4);
piglit_present_results();
addr = glMapBufferARB(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY_ARB);
pass &= probe(10, 10, 0x0000ff00, addr[0]);
pass &= probe(10, 10, 0x00ff0000, addr[1]);
glUnmapBufferARB(GL_PIXEL_PACK_BUFFER);
glDeleteBuffersARB(1, &pbo);
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
static void reshape(int width, int height)
{
piglit_width = width;
piglit_height = height;
piglit_ortho_projection(width, height, GL_FALSE);
}
void
piglit_init(int argc, char **argv)
{
reshape(piglit_width, piglit_height);
piglit_require_extension("GL_ARB_pixel_buffer_object");
}
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