/*
 * Copyright © 2010 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>
 *    Neil Roberts <neil@linux.intel.com>
 *
 */

/** @file useprogram-refcount-1.c
 *
 * Tests that a metaops call (glDrawPixels()) doesn't lose the last
 * reference on an active, deleted shader prorgam.
 *
 * Bug #31194
 */

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

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

static GLint prog;

enum piglit_result
piglit_display(void)
{
	GLboolean pass = GL_TRUE;
	float green[4] = {0.0, 1.0, 0.0, 0.0};
	uint8_t pixel[4] = {0x00, 0xff, 0x00, 0xff};

	/* Set up fixed function to draw red if we lose our shader. */
	glColor4f(1.0, 0.0, 0.0, 0.0);

	/* Tiny drawpixels */
	glDrawPixels(1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel);

	/* Draw over the whole screen with the shader. */
	piglit_draw_rect(-1, -1, 2, 2);

	pass &= piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
				       green);

	piglit_present_results();

	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}

void
piglit_init(int argc, char **argv)
{
	GLint vs, fs;
	const char *vs_source =
		"void main()\n"
		"{\n"
		"	gl_Position = gl_Vertex;\n"
		"}\n";
	const char *fs_source =
		"void main()\n"
		"{\n"
		"	gl_FragColor = vec4(0.0, 1.0, 0.0, 0.0);\n"
		"}\n";

	piglit_require_gl_version(20);

	vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_source);
	fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_source);
	prog = piglit_link_simple_program(vs, fs);
	glUseProgram(prog);
	glDeleteProgram(prog);
}