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Bug 121066 Images are dithered in Grayscale mode

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patch by Roland.Mainz@informatik.med.uni-giessen.de r=timeless sr=sfraser


git-svn-id: svn://10.0.0.236/trunk@113095 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
timeless%mac.com
2002-01-29 03:05:19 +00:00
parent 6436523048
commit 8af239bb2a
1 changed files with 13 additions and 5 deletions
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18
mozilla/gfx/src/xprint/nsXPrintContext.cpp
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@@ -60,11 +60,19 @@
/* misc defines */
#define XPRINT_MAKE_24BIT_VISUAL_AVAILABLE_FOR_TESTING 1
#ifdef XPRINT_NOT_YET /* ToDo: make this dynamically */
#define NS_XPRINT_RGB_DITHER XLIB_RGB_DITHER_NONE
#else
#define NS_XPRINT_RGB_DITHER ((mDepth>12)?(XLIB_RGB_DITHER_NONE):(XLIB_RGB_DITHER_MAX))
#endif
/* NS_XPRINT_RGB_DITHER: Macro to check whether we should dither or not.
* In theory we only have to look at the visual and depth ("TrueColor" with
* enougth bits for the colors or GrayScale/StaticGray with enougth bits for
* the grayscale shades).
* In real life some Xprt DDX do not have the GrayScale/StaticGray visuals and
* we emulate grayscale support with a PseudoColor visual+grayscale palette
* (that's why we test for |mIsGrayscale| explicitly)...
*/
#define NS_XPRINT_RGB_DITHER \
(((mDepth > 12 && mVisual->c_class==TrueColor) || \
(mDepth >= 7 && mVisual->c_class==GrayScale) || \
(mDepth >= 7 && mVisual->c_class==StaticGray) || \
(mIsGrayscale == PR_TRUE)) ?(XLIB_RGB_DITHER_NONE):(XLIB_RGB_DITHER_MAX))
#ifdef PR_LOGGING
/* DEBUG: use