Function DoRenderBackwards

Source/engine/render/clx_render.cpp:218–235

template <typename BlitFn>
void DoRenderBackwards(
    const Surface &out, Point position, const uint8_t *src, size_t srcSize,
    unsigned srcWidth, unsigned srcHeight, BlitFn &&blitFn)
{
	if (position.y < 0 || position.y + 1 >= static_cast<int>(out.h() + srcHeight))
		return;
	const ClipX clipX = CalculateClipX(position.x, srcWidth, out);
	if (clipX.width <= 0)
		return;
	const RenderSrc srcForBackwards { src, src + srcSize, static_cast<uint_fast16_t>(srcWidth) };
	if (static_cast<std::size_t>(clipX.width) == srcWidth) {
		DoRenderBackwardsClipY(
		    out, position, srcForBackwards, std::forward<BlitFn>(blitFn));
	} else {
		DoRenderBackwardsClipXY(
		    out, position, srcForBackwards, clipX, std::forward<BlitFn>(blitFn));
	}
}

constexpr size_t MaxOutlinePixels = 4096;
constexpr size_t MaxOutlineSpriteWidth = 253;