gdiplus: Add a test for CompositingModeSourceCopy.

[Vincent Povirk]

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From a7fef1f1659f721dc5a454cb97eec8317f9c1ea5 Mon Sep 17 00:00:00 2001
From: Vincent Povirk <vincent at codeweavers.com>
Date: Tue, 20 Oct 2015 10:43:12 -0500
Subject: [PATCH] gdiplus: Add a test for CompositingModeSourceCopy.

Signed-off-by: Vincent Povirk <vincent at codeweavers.com>
---
 dlls/gdiplus/tests/image.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/dlls/gdiplus/tests/image.c b/dlls/gdiplus/tests/image.c
index 51b99a3..6c3d1e5 100644
--- a/dlls/gdiplus/tests/image.c
+++ b/dlls/gdiplus/tests/image.c
@@ -3998,6 +3998,50 @@ static void test_DrawImage(void)
     expect(Ok, status);
 }
 
+static void test_DrawImage_SourceCopy(void)
+{
+    DWORD dst_pixels[4] = { 0xffffffff, 0xffffffff,
+                            0xffffffff, 0xffffffff };
+    DWORD src_pixels[4] = { 0, 0xffff0000,
+                            0, 0xff00ff };
+
+    GpStatus status;
+    union
+    {
+        GpBitmap *bitmap;
+        GpImage *image;
+    } u1, u2;
+    GpGraphics *graphics;
+
+    status = GdipCreateBitmapFromScan0(2, 2, 8, PixelFormat32bppARGB, (BYTE*)dst_pixels, &u1.bitmap);
+    expect(Ok, status);
+
+    status = GdipCreateBitmapFromScan0(2, 2, 8, PixelFormat32bppARGB, (BYTE*)src_pixels, &u2.bitmap);
+    expect(Ok, status);
+    status = GdipGetImageGraphicsContext(u1.image, &graphics);
+    expect(Ok, status);
+    status = GdipSetInterpolationMode(graphics, InterpolationModeNearestNeighbor);
+    expect(Ok, status);
+
+    status = GdipSetCompositingMode(graphics, CompositingModeSourceCopy);
+    expect(Ok, status);
+
+    status = GdipDrawImageI(graphics, u2.image, 0, 0);
+    expect(Ok, status);
+
+    todo_wine expect(0, dst_pixels[0]);
+    expect(0xffff0000, dst_pixels[1]);
+    todo_wine expect(0, dst_pixels[2]);
+    todo_wine expect(0, dst_pixels[3]);
+
+    status = GdipDeleteGraphics(graphics);
+    expect(Ok, status);
+    status = GdipDisposeImage(u1.image);
+    expect(Ok, status);
+    status = GdipDisposeImage(u2.image);
+    expect(Ok, status);
+}
+
 static void test_GdipDrawImagePointRect(void)
 {
     BYTE black_1x1[4] = { 0,0,0,0 };
@@ -4688,6 +4732,7 @@ START_TEST(image)
     test_DrawImage_scale();
     test_image_format();
     test_DrawImage();
+    test_DrawImage_SourceCopy();
     test_GdipDrawImagePointRect();
     test_bitmapbits();
     test_tiff_palette();
-- 
2.1.4