Vincent Povirk : windowscodecs: Implement conversion from CMYK to RGB.
Alexandre Julliard
julliard at winehq.org
Mon Sep 13 17:14:44 CDT 2010
Module: wine
Branch: master
Commit: 9293ad7e1382ccf9ef95fd4c6a6067ed013ee56a
URL: http://source.winehq.org/git/wine.git/?a=commit;h=9293ad7e1382ccf9ef95fd4c6a6067ed013ee56a
Author: Vincent Povirk <vincent at codeweavers.com>
Date: Sat Sep 11 16:03:12 2010 -0500
windowscodecs: Implement conversion from CMYK to RGB.
---
dlls/windowscodecs/converter.c | 23 +++++++++++++++++++++++
dlls/windowscodecs/regsvr.c | 1 +
2 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/dlls/windowscodecs/converter.c b/dlls/windowscodecs/converter.c
index b1c0952..86cdf55 100644
--- a/dlls/windowscodecs/converter.c
+++ b/dlls/windowscodecs/converter.c
@@ -52,6 +52,7 @@ enum pixelformat {
format_32bppBGRA,
format_48bppRGB,
format_64bppRGBA,
+ format_32bppCMYK,
};
typedef HRESULT (*copyfunc)(struct FormatConverter *This, const WICRect *prc,
@@ -673,6 +674,27 @@ static HRESULT copypixels_to_32bppBGRA(struct FormatConverter *This, const WICRe
return res;
}
return S_OK;
+ case format_32bppCMYK:
+ if (prc)
+ {
+ HRESULT res;
+ UINT x, y;
+
+ res = IWICBitmapSource_CopyPixels(This->source, prc, cbStride, cbBufferSize, pbBuffer);
+ if (FAILED(res)) return res;
+
+ for (y=0; y<prc->Height; y++)
+ for (x=0; x<prc->Width; x++)
+ {
+ BYTE *pixel = pbBuffer+cbStride*y+4*x;
+ BYTE c=pixel[0], m=pixel[1], y=pixel[2], k=pixel[3];
+ pixel[0] = (255-y)*(255-k)/255; /* blue */
+ pixel[1] = (255-m)*(255-k)/255; /* green */
+ pixel[2] = (255-c)*(255-k)/255; /* red */
+ pixel[3] = 255; /* alpha */
+ }
+ }
+ return S_OK;
default:
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
}
@@ -710,6 +732,7 @@ static const struct pixelformatinfo supported_formats[] = {
{format_32bppBGRA, &GUID_WICPixelFormat32bppBGRA, copypixels_to_32bppBGRA},
{format_48bppRGB, &GUID_WICPixelFormat48bppRGB, NULL},
{format_64bppRGBA, &GUID_WICPixelFormat64bppRGBA, NULL},
+ {format_32bppCMYK, &GUID_WICPixelFormat32bppCMYK, NULL},
{0}
};
diff --git a/dlls/windowscodecs/regsvr.c b/dlls/windowscodecs/regsvr.c
index 61ed96e..ac84368 100644
--- a/dlls/windowscodecs/regsvr.c
+++ b/dlls/windowscodecs/regsvr.c
@@ -1231,6 +1231,7 @@ static GUID const * const converter_formats[] = {
&GUID_WICPixelFormat32bppBGRA,
&GUID_WICPixelFormat48bppRGB,
&GUID_WICPixelFormat64bppRGBA,
+ &GUID_WICPixelFormat32bppCMYK,
NULL
};
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