bgfx/examples/00-helloworld/helloworld.cpp

/*
 * Copyright 2011-2015 Branimir Karadzic. All rights reserved.
 * License: http://www.opensource.org/licenses/BSD-2-Clause
 */

#include "common.h"
#include <bgfx.h>
#include <bx/uint32_t.h>
#include "logo.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_VSYNC;

	bgfx::init();
	bgfx::reset(width, height, reset);

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

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

	while (!entry::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::dbgTextImage(bx::uint16_max(width/2/8, 20)-20
						 , bx::uint16_max(height/2/16, 6)-6
						 , 40
						 , 12
						 , s_logo
						 , 160
						 );
		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;
}