[tkreuzer] 50695: [WIN32K] - Remove gexloTrivial, it was never used - Remove EXLATEOBJ_vInitTrivial and move the code into EXLATEOBJ_vInitialize - Properly set XO_TABLE - Set ppalDstDc in EXLATEOBJ...

Author: tkreuzer
Date: Mon Feb 14 17:23:58 2011
New Revision: 50695

URL: http://svn.reactos.org/svn/reactos?rev=50695&view=rev
Log:
[WIN32K]
- Remove gexloTrivial, it was never used
- Remove EXLATEOBJ_vInitTrivial and move the code into EXLATEOBJ_vInitialize
- Properly set XO_TABLE
- Set ppalDstDc in EXLATEOBJ_vInitXlateFromDCs

Modified:
    trunk/reactos/subsystems/win32/win32k/eng/xlate.c

Modified: trunk/reactos/subsystems/win32/win32k/eng/xlate.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/eng...
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/eng/xlate.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/eng/xlate.c [iso-8859-1] Mon Feb 14 17:23:58 2011
@@ -17,8 +17,6 @@
 /** Globals *******************************************************************/

ULONG giUniqueXlate = 0;
-EXLATEOBJ gexloTrivial;
-XLATEOBJ* gpxloTrivial = &gexloTrivial.xlo;

const BYTE gajXlate5to8[32] =
 {  0,  8, 16, 25, 33, 41, 49, 58, 66, 74, 82, 90, 99,107,115,123,
@@ -328,23 +326,6 @@

/** Private Functions *********************************************************/
-
-VOID
-NTAPI
-EXLATEOBJ_vInitTrivial(PEXLATEOBJ pexlo)
-{
-    pexlo->xlo.iUniq = InterlockedIncrement((LONG*)&giUniqueXlate);
-    pexlo->xlo.flXlate = XO_TRIVIAL;
-    pexlo->xlo.iSrcType = PAL_RGB;
-    pexlo->xlo.iDstType = PAL_RGB;
-    pexlo->xlo.cEntries = 0;
-    pexlo->xlo.pulXlate = pexlo->aulXlate;
-    pexlo->pfnXlate = EXLATEOBJ_iXlateTrivial;
-    pexlo->ppalSrc = &gpalRGB;
-    pexlo->ppalDst = &gpalRGB;
-    pexlo->ppalDstDc = &gpalRGB;
-    pexlo->hColorTransform = NULL;
-}

VOID
 NTAPI
@@ -359,22 +340,24 @@
     ULONG cEntries;
     ULONG i, ulColor;

-    EXLATEOBJ_vInitTrivial(pexlo);
-
-    if (!ppalSrc || !ppalDst)
-    {
-        return;
-    }
-
+    if (!ppalSrc) ppalSrc = &gpalRGB;
+    if (!ppalDst) ppalDst = &gpalRGB;
+
+    pexlo->xlo.iUniq = InterlockedIncrement((LONG*)&giUniqueXlate);
+    pexlo->xlo.cEntries = 0;
+    pexlo->xlo.flXlate = 0;
+    pexlo->xlo.pulXlate = pexlo->aulXlate;
+    pexlo->pfnXlate = EXLATEOBJ_iXlateTrivial;
+    pexlo->hColorTransform = NULL;
     pexlo->ppalSrc = ppalSrc;
     pexlo->ppalDst = ppalDst;
     pexlo->xlo.iSrcType = ppalSrc->flFlags;
     pexlo->xlo.iDstType = ppalDst->flFlags;
-    
-    if (ppalDst == ppalSrc ||
-        ((ppalDst->flFlags == PAL_RGB || ppalDst->flFlags == PAL_BGR) &&
-         ppalDst->flFlags == ppalSrc->flFlags))
-    {
+    pexlo->ppalDstDc = &gpalRGB;
+
+    if (ppalDst == ppalSrc)
+    {
+        pexlo->xlo.flXlate |= XO_TRIVIAL;
         return;
     }

@@ -460,12 +443,14 @@
                 return;
             }
         }
+
+        pexlo->pfnXlate = EXLATEOBJ_iXlateTable;
         pexlo->xlo.cEntries = cEntries;
-
-        pexlo->pfnXlate = EXLATEOBJ_iXlateTable;
+        pexlo->xlo.flXlate |= XO_TABLE;
+
         if (ppalDst->flFlags & PAL_INDEXED)
         {
-            pexlo->xlo.flXlate |= XO_TABLE;
+            ULONG cDiff = 0;

for (i = 0; i < cEntries; i++)
             {
@@ -476,11 +461,11 @@
                 pexlo->xlo.pulXlate[i] =
                     PALETTE_ulGetNearestPaletteIndex(ppalDst, ulColor);

-                if (pexlo->xlo.pulXlate[i] != i)
-                    pexlo->xlo.flXlate &= ~XO_TRIVIAL;
+                if (pexlo->xlo.pulXlate[i] != i) cDiff++;
             }

-            if (pexlo->xlo.flXlate & XO_TRIVIAL)
+            /* Check if we have only trivial mappings */
+            if (cDiff == 0)
             {
                 if (pexlo->xlo.pulXlate != pexlo->aulXlate)
                 {
@@ -489,6 +474,7 @@
                 }
                 pexlo->pfnXlate = EXLATEOBJ_iXlateTrivial;
                 pexlo->xlo.flXlate = XO_TRIVIAL;
+                pexlo->xlo.cEntries = 0;
                 return;
             }
         }
@@ -619,6 +605,8 @@
                           pdcSrc->pdcattr->crBackgroundClr,
                           pdcDst->pdcattr->crBackgroundClr,
                           pdcDst->pdcattr->crForegroundClr);
+
+    pexlo->ppalDstDc = pdcDst->dclevel.ppal;
 }

VOID
@@ -637,7 +625,6 @@
 NTAPI
 InitXlateImpl(VOID)
 {
-    EXLATEOBJ_vInitTrivial(&gexloTrivial);
     return STATUS_SUCCESS;
 }