gdiplus: Add some tests for ARGB conversions.

dlls/gdiplus/tests/image.c

@@ -4107,6 +4107,77 @@ static void test_gif_properties(void)
     GdipDisposeImage(image);
 }
 
+static void test_ARGB_conversion(void)
+{
+    BYTE argb[8] = { 0x11,0x22,0x33,0x80, 0xff,0xff,0xff,0 };
+    BYTE pargb[8] = { 0x09,0x11,0x1a,0x80, 0,0,0,0 };
+    BYTE rgb32_xp[8] = { 0x11,0x22,0x33,0xff, 0xff,0xff,0xff,0xff };
+    BYTE rgb24[6] = { 0x11,0x22,0x33, 0xff,0xff,0xff };
+    BYTE *bits;
+    GpBitmap *bitmap;
+    BitmapData data;
+    GpStatus status;
+    int match;
+
+    status = GdipCreateBitmapFromScan0(2, 1, 8, PixelFormat32bppARGB, argb, &bitmap);
+    expect(Ok, status);
+
+    status = GdipBitmapLockBits(bitmap, NULL, ImageLockModeRead, PixelFormat32bppPARGB, &data);
+    expect(Ok, status);
+    ok(data.Width == 2, "expected 2, got %d\n", data.Width);
+    ok(data.Height == 1, "expected 1, got %d\n", data.Height);
+    ok(data.Stride == 8, "expected 8, got %d\n", data.Stride);
+    ok(data.PixelFormat == PixelFormat32bppPARGB, "expected PixelFormat32bppPARGB, got %d\n", data.PixelFormat);
+    match = !memcmp(data.Scan0, pargb, sizeof(pargb));
+todo_wine
+    ok(match, "bits don't match\n");
+    if (!match)
+    {
+        bits = data.Scan0;
+        trace("format %#x, bits %02x,%02x,%02x,%02x %02x,%02x,%02x,%02x\n", PixelFormat32bppPARGB,
+               bits[0], bits[1], bits[2], bits[3], bits[4], bits[5], bits[6], bits[7]);
+    }
+    status = GdipBitmapUnlockBits(bitmap, &data);
+    expect(Ok, status);
+
+    status = GdipBitmapLockBits(bitmap, NULL, ImageLockModeRead, PixelFormat32bppRGB, &data);
+    expect(Ok, status);
+    ok(data.Width == 2, "expected 2, got %d\n", data.Width);
+    ok(data.Height == 1, "expected 1, got %d\n", data.Height);
+    ok(data.Stride == 8, "expected 8, got %d\n", data.Stride);
+    ok(data.PixelFormat == PixelFormat32bppRGB, "expected PixelFormat32bppRGB, got %d\n", data.PixelFormat);
+    match = !memcmp(data.Scan0, argb, sizeof(argb)) ||
+            !memcmp(data.Scan0, rgb32_xp, sizeof(rgb32_xp));
+    ok(match, "bits don't match\n");
+    if (!match)
+    {
+        bits = data.Scan0;
+        trace("format %#x, bits %02x,%02x,%02x,%02x %02x,%02x,%02x,%02x\n", PixelFormat32bppRGB,
+               bits[0], bits[1], bits[2], bits[3], bits[4], bits[5], bits[6], bits[7]);
+    }
+    status = GdipBitmapUnlockBits(bitmap, &data);
+    expect(Ok, status);
+
+    status = GdipBitmapLockBits(bitmap, NULL, ImageLockModeRead, PixelFormat24bppRGB, &data);
+    expect(Ok, status);
+    ok(data.Width == 2, "expected 2, got %d\n", data.Width);
+    ok(data.Height == 1, "expected 1, got %d\n", data.Height);
+    ok(data.Stride == 8, "expected 8, got %d\n", data.Stride);
+    ok(data.PixelFormat == PixelFormat24bppRGB, "expected PixelFormat24bppRGB, got %d\n", data.PixelFormat);
+    match = !memcmp(data.Scan0, rgb24, sizeof(rgb24));
+    ok(match, "bits don't match\n");
+    if (!match)
+    {
+        bits = data.Scan0;
+        trace("format %#x, bits %02x,%02x,%02x,%02x %02x,%02x,%02x,%02x\n", PixelFormat24bppRGB,
+               bits[0], bits[1], bits[2], bits[3], bits[4], bits[5], bits[6], bits[7]);
+    }
+    status = GdipBitmapUnlockBits(bitmap, &data);
+    expect(Ok, status);
+
+    GdipDisposeImage((GpImage *)bitmap);
+}
+
 START_TEST(image)
 {
     struct GdiplusStartupInput gdiplusStartupInput;
@@ -4119,6 +4190,7 @@ START_TEST(image)
 
     GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
 
+    test_ARGB_conversion();
     test_DrawImage_scale();
     test_image_format();
     test_DrawImage();