/*
 * 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 oes-read-format.c
 *
 * Tests that GL_OES_read_format works and returns a set of parameters valid
 * for ReadPixels.
 */

#include "piglit-util-gl-common.h"

PIGLIT_GL_TEST_MAIN(
    100 /*window_width*/,
    100 /*window_height*/,
    PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE)

enum piglit_result
piglit_display(void)
{
	GLboolean pass = GL_TRUE;
	static float green[] = {0.0, 1.0, 0.0, 0.0};
	uint32_t vals[4];
	GLint format, type;

	glColor4fv(green);
	piglit_draw_rect(0, 0, piglit_width, piglit_height);

	glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES, &format);
	glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_TYPE_OES, &type);

	glReadPixels(1, 1, 1, 1, format, type, vals);

	pass = glGetError() == 0;

	piglit_present_results();

	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_OES_read_format");
}