libtheoraplayersdl.cpp

#include <cstdlib>
#include <iostream>
#include <SDL.h>
#include <theoraplayer\TheoraPlayer.h>

int main(int argc, char *argv[])
{
	if (SDL_Init(SDL_INIT_VIDEO)) {
		std::cerr << "Failed to initialize SDL: " << SDL_GetError() << std::endl;

		return EXIT_FAILURE;
	}

	auto manager = new TheoraVideoManager();
	auto clip = manager->createVideoClip("[[[ FILEPATH HERE ]]]", TH_RGB, 16);

	auto window = SDL_CreateWindow("SDLTheoraPlayer", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
		clip->getWidth(), clip->getHeight(), 0);
	if (window == nullptr) {
		std::cerr << "Failed to create window: " << SDL_GetError() << std::endl;

		delete manager;
		SDL_Quit();
		return EXIT_FAILURE;
	}

	auto renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
	if (renderer == nullptr) {
		std::cerr << "Failed to create renderer: " << SDL_GetError() << std::endl;

		delete manager;
		SDL_DestroyWindow(window);
		SDL_Quit();
		return EXIT_FAILURE;
	}

	auto texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_RGB24, SDL_TEXTUREACCESS_STREAMING, clip->getWidth(),
		clip->getHeight());
	if (texture == nullptr) {
		std::cerr << "Failed to create texture: " << SDL_GetError() << std::endl;

		delete manager;
		SDL_DestroyRenderer(renderer);
		SDL_DestroyWindow(window);
		SDL_Quit();
		return EXIT_FAILURE;
	}

	auto quit = false;
	SDL_Event e;

	Uint32 now = SDL_GetTicks(), last = 0;

	while (!quit) {
		last = now;
		now = SDL_GetTicks();
		const float dt = (float)(now - last) / 1000.0f;

		manager->update(dt);

		SDL_PollEvent(&e);

		switch (e.type) {
			case SDL_QUIT:
				quit = true;
				break;
			case SDL_KEYDOWN:
				if (e.key.keysym.sym == SDLK_ESCAPE) quit = true;
				break;
		}

		auto frame = clip->getNextFrame();
		if (frame != nullptr) {
			void *pixels;
			int pitch;

			SDL_LockTexture(texture, nullptr, &pixels, &pitch);
			memcpy(pixels, frame->getBuffer(), sizeof(Uint8) * pitch * frame->getHeight());
			SDL_UnlockTexture(texture);

			clip->popFrame();
		}

		SDL_RenderClear(renderer);
		SDL_RenderCopy(renderer, texture, nullptr, nullptr);
		SDL_RenderPresent(renderer);
	}

	delete manager;
	SDL_DestroyTexture(texture);
	SDL_DestroyRenderer(renderer);
	SDL_DestroyWindow(window);
	SDL_Quit();
	return EXIT_SUCCESS;
}