#include "TZR.h"
#include "TZR_globals.h"
#include "sdl_error.h"

int
TZR_SetViewportSize(int width, int height)
{
	const int pw = ___tzr_config.width;
	const int ph = ___tzr_config.height;
	___tzr_config.width = width;
	___tzr_config.height = height;
	if (___tzr_config.hd_render) {
		if (SDL_RenderSetLogicalSize(___tzr_renderer,
		                             ___tzr_config.width,
		                             ___tzr_config.height) < 0)
			return sdl_error(-1);
	} else {
		if (___tzr_target != NULL && pw == width && ph == height)
			return 0;
		if (___tzr_target != NULL)
			SDL_DestroyTexture(___tzr_target);
		___tzr_target = SDL_CreateTexture(___tzr_renderer,
		                                  SDL_PIXELFORMAT_RGB888,
		                                  SDL_TEXTUREACCESS_TARGET,
		                                  ___tzr_config.width,
		                                  ___tzr_config.height);
		if (___tzr_target == NULL)
			return sdl_error(-1);
		if (___tzr_config.interlace) {
			___tzr_target_pre = SDL_CreateTexture(
			    ___tzr_renderer,
			    SDL_PIXELFORMAT_RGB888,
			    SDL_TEXTUREACCESS_TARGET,
			    ___tzr_config.width,
			    ___tzr_config.height);
		}
	}
	return 0;
}