gdiplus: Partially implement GdipDrawImageFX.

dlls/gdiplus/graphics.c

@@ -2947,13 +2947,49 @@ GpStatus WINGDIPAPI GdipDrawImage(GpGraphics *graphics, GpImage *image, REAL x,
                                   0.0, 0.0, (REAL)width, (REAL)height, UnitPixel);
 }
 
-GpStatus WINGDIPAPI GdipDrawImageFX(GpGraphics *graphics, GpImage *image, GpRectF *src,
+GpStatus WINGDIPAPI GdipDrawImageFX(GpGraphics *graphics, GpImage *image, GpRectF *src_rect,
     GpMatrix *transform, CGpEffect *effect, GpImageAttributes *imageattr,
-    GpUnit srcUnit)
+    GpUnit src_unit)
 {
-    FIXME("(%p, %p, %p, %p, %p, %p, %d): stub\n", graphics, image, src, transform, effect, imageattr, srcUnit);
+    GpRectF src_rect_buf;
+    GpPointF points[3];
+    GpStatus status;
 
-    return NotImplemented;
+    TRACE("(%p, %p, %p, %p, %p, %p, %d)\n", graphics, image, src_rect, transform, effect, imageattr, src_unit);
+
+    if (!graphics || !image)
+        return InvalidParameter;
+
+    if (effect)
+        FIXME("effect not implemented\n");
+
+    if (!src_rect)
+    {
+        if ((status = GdipGetImageBounds(image, &src_rect_buf, &src_unit)) != Ok)
+            return status;
+
+        /* Metafiles may have different left-top coordinates */
+        if (src_rect_buf.X != 0.0 || src_rect_buf.Y != 0.0)
+        {
+            FIXME("image bounds %s left-top not at origin", debugstr_rectf(&src_rect_buf));
+            /* TODO: only use width and height (force origin)? */
+        }
+
+        src_rect = &src_rect_buf;
+    }
+
+    points[0].X = points[2].X = src_rect->X;
+    points[0].Y = points[1].Y = src_rect->Y;
+    points[1].X = src_rect->X + src_rect->Width;
+    points[2].Y = src_rect->Y + src_rect->Height;
+
+    if (transform)
+        GdipTransformMatrixPoints(transform, points, 3);
+
+    return GdipDrawImagePointsRect(graphics, image, points, 3,
+                                   src_rect->X, src_rect->Y,
+                                   src_rect->Width, src_rect->Height,
+                                   src_unit, imageattr, NULL, NULL);
 }
 
 GpStatus WINGDIPAPI GdipDrawImageI(GpGraphics *graphics, GpImage *image, INT x,

dlls/gdiplus/tests/graphics.c

@@ -1332,17 +1332,14 @@ static void test_GdipDrawImageFX(void)
 
     /* DrawImageFX with source rectangle */
     status = GdipDrawImageFX(graphics, NULL, &source, NULL, NULL, NULL, UnitPixel);
-    todo_wine
     expect(InvalidParameter, status);
 
     /* DrawImageFX with source bitmap */
     status = GdipDrawImageFX(graphics, (GpImage*)bm, NULL, NULL, NULL, NULL, UnitPixel);
-    todo_wine
     expect(Ok, status);
 
     /* DrawImageFX with source bitmap and transform */
     status = GdipDrawImageFX(graphics, (GpImage*)bm, NULL, transform, NULL, NULL, UnitPixel);
-    todo_wine
     expect(Ok, status);
 
     /* DrawImageFX with source bitmap and source rectangle */
@@ -1350,12 +1347,10 @@ static void test_GdipDrawImageFX(void)
     source.Height = source.Width = 10.0;
 
     status = GdipDrawImageFX(graphics, (GpImage*)bm, &source, NULL, NULL, NULL, UnitPixel);
-    todo_wine
     expect(Ok, status);
 
     /* DrawImageFX with source bitmap, source rectangle, and transform */
     status = GdipDrawImageFX(graphics, (GpImage*)bm, &source, transform, NULL, NULL, UnitPixel);
-    todo_wine
     expect(Ok, status);
 
     GdipDeleteMatrix(transform);