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packed rgb fixes

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force 4x4 dither with alpha dither subtraction
This commit is contained in:
koolsmoky
2007-05-19 08:37:25 +00:00
parent 9a6eac9c31
commit 8749e39edc
1 changed files with 25 additions and 4 deletions
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29
glide2x/cvg/glide/src/gglide.c
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@@ -19,6 +19,9 @@
**
** $Header$
** $Log$
** Revision 1.2.2.5 2005/01/22 14:52:02 koolsmoky
** enabled packed argb for cmd packet type 3
**
** Revision 1.2.2.4 2004/12/27 20:46:37 koolsmoky
** added dll entry point to call grGlideShutdown when a process is detached
**
@@ -1530,12 +1533,15 @@ GR_STATE_ENTRY(grDitherMode, void, (GrDitherMode_t mode))
case GR_DITHER_2x2:
case GR_DITHER_4x4:
/* always force 2x2 dither because it looks better */
fbzMode |= (SST_ENDITHER | SST_DITHER2x2 | SST_ENDITHERSUBTRACT);
/* force 4x4 dither with alpha dither subtraction */
fbzMode |= (SST_ENDITHER | SST_ENDITHERSUBTRACT);
/* disable alpha blending dither subtraction according to user request */
if (_GlideRoot.environment.disableDitherSub == FXTRUE)
if (_GlideRoot.environment.disableDitherSub == FXTRUE) {
/* without alpha dither subtraction, 2x2 dither looks better */
fbzMode |= SST_DITHER2x2;
fbzMode &= ~(SST_ENDITHERSUBTRACT);
}
break;
}
@@ -2140,11 +2146,11 @@ _grUpdateTriPacketHdr(FxU32 paramMask,
? kSetupCullPositive
: kSetupCullNegative);
#if GLIDE_DISPATCH_SETUP
#define COLOR_COMP_ARGB ((SST_SETUP_RGB | SST_SETUP_A) << SSTCP_PKT3_PMASK_SHIFT)
#define COLOR_COMP_RGB (SST_SETUP_RGB << SSTCP_PKT3_PMASK_SHIFT)
#define COLOR_COMP_MASK COLOR_COMP_ARGB
#if GLIDE_DISPATCH_SETUP
/* Setup custom triangle/strip procs.
*
* NB: Currently this selection is based entirely on if
@@ -2182,6 +2188,21 @@ _grUpdateTriPacketHdr(FxU32 paramMask,
gc->curArchProcs.triSetupProc = PROC_SELECT_TRISETUP(*curTriProcVector, cullMode);
}
#else
#if GLIDE_PACKED_RGB
if ((paramMask & SSTCP_PKT3_PACKEDCOLOR) == SSTCP_PKT3_PACKEDCOLOR) {
const FxU32 colorComp = paramMask & COLOR_COMP_MASK;
switch(colorComp) {
case COLOR_COMP_ARGB:
case COLOR_COMP_RGB:
break;
default:
paramMask &= ~SSTCP_PKT3_PACKEDCOLOR;
break;
}
}
#endif
#endif /* GLIDE_DISPATCH_SETUP */
gc->cmdTransportInfo.paramMask = paramMask;