[jimtabor] 37496: - Update palette functions and small cleanup in bitmaps.

Author: jimtabor
Date: Fri Nov 21 00:50:36 2008
New Revision: 37496

URL: http://svn.reactos.org/svn/reactos?rev=37496&view=rev
Log:
- Update palette functions and small cleanup in bitmaps.

Modified:
    trunk/reactos/dll/win32/gdi32/objects/bitmap.c
    trunk/reactos/dll/win32/gdi32/objects/palette.c

Modified: trunk/reactos/dll/win32/gdi32/objects/bitmap.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/gdi32/objects/bi…
==============================================================================
--- trunk/reactos/dll/win32/gdi32/objects/bitmap.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/gdi32/objects/bitmap.c [iso-8859-1] Fri Nov 21 00:50:36 2008
@@ -341,8 +341,6 @@
 }
 
 
-
-
 INT
 STDCALL
 GetDIBits(
@@ -392,7 +390,7 @@
                                uUsage,
                                cjBmpScanSize,
                                0);
-  if ( lpvBits )
+  if ( lpvBits != pvSafeBits)
   {
      RtlCopyMemory( lpvBits, pvSafeBits, cjBmpScanSize);
      RtlFreeHeap(RtlGetProcessHeap(), 0, pvSafeBits);

Modified: trunk/reactos/dll/win32/gdi32/objects/palette.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/gdi32/objects/pa…
==============================================================================
--- trunk/reactos/dll/win32/gdi32/objects/palette.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/gdi32/objects/palette.c [iso-8859-1] Fri Nov 21 00:50:36 2008
@@ -2,6 +2,42 @@
 
 #define NDEBUG
 #include <debug.h>
+
+
+#define NB_RESERVED_COLORS  20   /* number of fixed colors in system palette */
+
+static const PALETTEENTRY sys_pal_template[NB_RESERVED_COLORS] =
+{
+    /* first 10 entries in the system palette */
+    /* red  green blue  flags */
+    { 0x00, 0x00, 0x00, 0 },
+    { 0x80, 0x00, 0x00, 0 },
+    { 0x00, 0x80, 0x00, 0 },
+    { 0x80, 0x80, 0x00, 0 },
+    { 0x00, 0x00, 0x80, 0 },
+    { 0x80, 0x00, 0x80, 0 },
+    { 0x00, 0x80, 0x80, 0 },
+    { 0xc0, 0xc0, 0xc0, 0 },
+    { 0xc0, 0xdc, 0xc0, 0 },
+    { 0xa6, 0xca, 0xf0, 0 },
+
+    /* ... c_min/2 dynamic colorcells */
+
+    /* ... gap (for sparse palettes) */
+
+    /* ... c_min/2 dynamic colorcells */
+
+    { 0xff, 0xfb, 0xf0, 0 },
+    { 0xa0, 0xa0, 0xa4, 0 },
+    { 0x80, 0x80, 0x80, 0 },
+    { 0xff, 0x00, 0x00, 0 },
+    { 0x00, 0xff, 0x00, 0 },
+    { 0xff, 0xff, 0x00, 0 },
+    { 0x00, 0x00, 0xff, 0 },
+    { 0xff, 0x00, 0xff, 0 },
+    { 0x00, 0xff, 0xff, 0 },
+    { 0xff, 0xff, 0xff, 0 }     /* last 10 */
+};
 
 BOOL
 WINAPI
@@ -50,7 +86,34 @@
                         UINT cEntries,
                         LPPALETTEENTRY ppe)
 {
-    return NtGdiDoPalette(hDC, iStartIndex, cEntries, ppe, GdiPalGetSystemEntries,
FALSE);
+  PALETTEENTRY ippe[256];
+
+  if (cEntries < 0) return 0;
+  else
+  {
+     if ( GetDeviceCaps(hDC, RASTERCAPS) & RC_PALETTE )
+        return NtGdiDoPalette(hDC, iStartIndex, cEntries, ppe, GdiPalGetSystemEntries,
FALSE);
+     else
+     {
+        if (ppe)
+        {
+           RtlZeroMemory( &ippe, sizeof(ippe) );
+           RtlCopyMemory( &ippe, &sys_pal_template, sizeof(sys_pal_template) );
+
+           if (iStartIndex < 256)
+           {
+              INT Index = 256 - iStartIndex;
+
+              if ( Index >= cEntries ) Index = cEntries;
+
+              RtlCopyMemory( ppe, 
+                            &ippe[iStartIndex],
+                             Index*sizeof(PALETTEENTRY));
+           }
+        }
+     }
+  }
+  return 0;
 }
 
 UINT
@@ -60,7 +123,9 @@
                  UINT cEntries,
                  RGBQUAD *pColors)
 {
-    return NtGdiDoPalette(hDC, iStartIndex, cEntries, pColors, GdiPalGetColorTable,
FALSE);
+  if (cEntries)
+     return NtGdiDoPalette(hDC, iStartIndex, cEntries, pColors, GdiPalGetColorTable,
FALSE);
+  return 0;
 }
 
 /*