#include "TZR_render.h"
#include "TZR_globals.h"
#include "sdl_error.h"
#include <SDL2/SDL_render.h>

int
TZR_DrawBegin(void)
{
	if (TZR_BlendMode(SDL_BLENDMODE_BLEND))
		return sdl_error(-1);
	if (___tzr_config.hd_render)
		return 0;
	if (___tzr_config.interlace) {
		SDL_Texture *const tmp = ___tzr_target;
		___tzr_target = ___tzr_target_pre;
		___tzr_target_pre = tmp;
	}
	if (SDL_SetRenderTarget(___tzr_renderer, ___tzr_target) < 0)
		return sdl_error(-1);
	return 0;
}