gdiplus: Implement tiling wrap modes.
diff --git a/dlls/gdiplus/graphics.c b/dlls/gdiplus/graphics.c
index 7a70f36..89cd6ca 100644
--- a/dlls/gdiplus/graphics.c
+++ b/dlls/gdiplus/graphics.c
@@ -481,17 +481,40 @@
static ARGB sample_bitmap_pixel(GDIPCONST GpRect *src_rect, LPBYTE bits, UINT width,
UINT height, INT x, INT y, GDIPCONST GpImageAttributes *attributes)
{
- static int fixme[4];
-
- switch (attributes->wrap)
+ if (attributes->wrap == WrapModeClamp)
{
- default:
- if (!fixme[attributes->wrap]++)
- FIXME("not implemented for wrap mode %i\n", attributes->wrap);
- case WrapModeClamp:
if (x < 0 || y < 0 || x >= width || y >= height)
return attributes->outside_color;
- break;
+ }
+ else
+ {
+ /* Tiling. Make sure co-ordinates are positive as it simplifies the math. */
+ if (x < 0)
+ x = width*2 + x % (width * 2);
+ if (y < 0)
+ y = height*2 + y % (height * 2);
+
+ if ((attributes->wrap & 1) == 1)
+ {
+ /* Flip X */
+ if ((x / width) % 2 == 0)
+ x = x % width;
+ else
+ x = width - 1 - x % width;
+ }
+ else
+ x = x % width;
+
+ if ((attributes->wrap & 2) == 2)
+ {
+ /* Flip Y */
+ if ((y / height) % 2 == 0)
+ y = y % height;
+ else
+ y = height - 1 - y % height;
+ }
+ else
+ y = y % height;
}
if (x < src_rect->X || y < src_rect->Y || x >= src_rect->X + src_rect->Width || y >= src_rect->Y + src_rect->Height)
