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[GDIPLUS]

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Import Wine commit (by Vincent Povirk):
- b8a8e1bde9382897927945ec0b58b8a2fcfcfe59, Check SHADEBLENDCAPS only for printer devices.

In short, this avoids black boxes in GOG setup. This may help other software having rendering issues due to alpha layer.

svn path=/trunk/; revision=74665
This commit is contained in:
Pierre Schweitzer
2017-05-26 08:31:10 +00:00
parent b2ba90c6b5
commit 0629afcaa5
1 changed files with 4 additions and 2 deletions
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reactos/dll/win32/gdiplus/graphics.c
+4 -2
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@@ -320,7 +320,8 @@ static void transform_and_round_points(GpGraphics *graphics, POINT *pti,
static void gdi_alpha_blend(GpGraphics *graphics, INT dst_x, INT dst_y, INT dst_width, INT dst_height,
HDC hdc, INT src_x, INT src_y, INT src_width, INT src_height)
{
if (GetDeviceCaps(graphics->hdc, SHADEBLENDCAPS) == SB_NONE)
if (GetDeviceCaps(graphics->hdc, TECHNOLOGY) == DT_RASPRINTER &&
GetDeviceCaps(graphics->hdc, SHADEBLENDCAPS) == SB_NONE)
{
TRACE("alpha blending not supported by device, fallback to StretchBlt\n");
@@ -400,7 +401,8 @@ static GpStatus alpha_blend_hdc_pixels(GpGraphics *graphics, INT dst_x, INT dst_
hbitmap = CreateDIBSection(hdc, (BITMAPINFO*)&bih, DIB_RGB_COLORS,
(void**)&temp_bits, NULL, 0);
if (GetDeviceCaps(graphics->hdc, SHADEBLENDCAPS) == SB_NONE ||
if ((GetDeviceCaps(graphics->hdc, TECHNOLOGY) == DT_RASPRINTER &&
GetDeviceCaps(graphics->hdc, SHADEBLENDCAPS) == SB_NONE) ||
fmt & PixelFormatPAlpha)
memcpy(temp_bits, src, src_width * src_height * 4);
else