bgfx/examples/00-helloworld/helloworld.cpp

/*
 * Copyright 2011-2013 Branimir Karadzic. All rights reserved.
 * License: http://www.opensource.org/licenses/BSD-2-Clause
 */

#include <bgfx.h>
#include <bx/bx.h>
#include "../common/entry.h"
#include "../common/dbg.h"
#include "../common/processevents.h"

int _main_(int _argc, char** _argv)
{
	uint32_t width = 1280;
	uint32_t height = 720;
	uint32_t debug = BGFX_DEBUG_TEXT;
	uint32_t reset = BGFX_RESET_NONE;

	// It's possible to call init/shutdown sequence multiple times inside
	// the same application if it is necessary. State created between one
	// init and shutdown doesn't carry over to another.
	bgfx::init();
	bgfx::shutdown();

	// Now init for real example.
	bgfx::init();
	bgfx::reset(width, height);

	// Enable debug text.
	bgfx::setDebug(debug);

	// Set view 0 clear state.
	bgfx::setViewClear(0
		, BGFX_CLEAR_COLOR_BIT|BGFX_CLEAR_DEPTH_BIT
		, 0x303030ff
		, 1.0f
		, 0
		);

	while (!processEvents(width, height, debug, reset) )
	{
		// Set view 0 default viewport.
		bgfx::setViewRect(0, 0, 0, width, height);

		// This dummy draw call is here to make sure that view 0 is cleared
		// if no other draw calls are submitted to view 0.
		bgfx::submit(0);

		// Use debug font to print information about this example.
		bgfx::dbgTextClear();
		bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/00-helloworld");
		bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Initialization and debug text.");

		// Advance to next frame. Rendering thread will be kicked to 
		// process submitted rendering primitives.
		bgfx::frame();
	}

	// Shutdown bgfx.
	bgfx::shutdown();

	return 0;
}