Function foreachBlock

pcsx2/GS/GSLocalMemoryMultiISA.cpp:181–200

template <typename Fn>
static void foreachBlock(const GSOffset& off, GSLocalMemory& mem, const GSVector4i& r, u8* dst, int dstpitch, int bpp, Fn&& fn)
{
	pxAssert(off.isBlockAligned(r));
	GSOffset::BNHelper bn = off.bnMulti(r.left, r.top);
	int right = r.right >> off.blockShiftX();
	int bottom = r.bottom >> off.blockShiftY();

	int offset = dstpitch << off.blockShiftY();
	int xAdd = (1 << off.blockShiftX()) * (bpp / 8);

	for (; bn.blkY() < bottom; bn.nextBlockY(), dst += offset)
	{
		for (int x = 0; bn.blkX() < right; bn.nextBlockX(), x += xAdd)
		{
			const u8* src = mem.BlockPtr(bn.value());
			u8* read_dst = dst + x;
			fn(read_dst, src);
		}
	}
}

template <int psm, int bsx, int bsy, int alignment>
void GSLocalMemoryFunctions::WriteImageColumn(GSLocalMemory& mem, int l, int r, int y, int h, const u8* src, int srcpitch, const GIFRegBITBLTBUF& BITBLTBUF)