[fireball] 42405: - Remove unused code from GreCreateBitmap. - If GreCreateBitmap is called with 0 bytewidth, calculate it automatically. - Fix GreCreatePen pattern brush creation, and free up pattern bitmap in GreFreeBrush.

Author: fireball
Date: Wed Aug  5 14:35:19 2009
New Revision: 42405

URL: http://svn.reactos.org/svn/reactos?rev=42405&view=rev
Log:
- Remove unused code from GreCreateBitmap.
- If GreCreateBitmap is called with 0 bytewidth, calculate it automatically.
- Fix GreCreatePen pattern brush creation, and free up pattern bitmap in GreFreeBrush.

Modified:
    branches/arwinss/reactos/subsystems/win32/win32k/gre/brushobj.c
    branches/arwinss/reactos/subsystems/win32/win32k/gre/surfobj.c

Modified: branches/arwinss/reactos/subsystems/win32/win32k/gre/brushobj.c
URL:
http://svn.reactos.org/svn/reactos/branches/arwinss/reactos/subsystems/win3…
==============================================================================
--- branches/arwinss/reactos/subsystems/win32/win32k/gre/brushobj.c [iso-8859-1]
(original)
+++ branches/arwinss/reactos/subsystems/win32/win32k/gre/brushobj.c [iso-8859-1] Wed Aug 
5 14:35:19 2009
@@ -70,8 +70,9 @@
 
     pBrush->flAttrs = bOldStylePen? GDIBRUSH_IS_OLDSTYLEPEN : GDIBRUSH_IS_PEN;
 
-    /* Initialize default pattern bitmap size */
-    szPatSize.cx = 1; szPatSize.cy = 1;
+    /* Initialize default pattern bitmap size (24x1) */
+    szPatSize.cx = 24;
+    szPatSize.cy = 1;
 
     // If dwPenStyle is PS_COSMETIC, the width must be set to 1.
     if ( !(bOldStylePen) && ((dwPenStyle & PS_TYPE_MASK) == PS_COSMETIC)
&& ( dwWidth != 1) )
@@ -99,7 +100,7 @@
 
     case PS_ALTERNATE:
         pBrush->flAttrs |= GDIBRUSH_IS_BITMAP;
-        pBrush->hbmPattern = GreCreateBitmap(szPatSize, 1, BMF_24BPP, BMF_NOZEROINIT,
NULL);
+        pBrush->hbmPattern = GreCreateBitmap(szPatSize, 0, BMF_1BPP, BMF_NOZEROINIT,
NULL);
         pPattern = SURFACE_Lock(pBrush->hbmPattern);
         GreSetBitmapBits(pPattern, sizeof(PatternDashDotDot), (PVOID)PatternAlternate);
         SURFACE_Unlock(pPattern);
@@ -107,7 +108,7 @@
 
     case PS_DOT:
         pBrush->flAttrs |= GDIBRUSH_IS_BITMAP;
-        pBrush->hbmPattern = GreCreateBitmap(szPatSize, 1, BMF_24BPP, BMF_NOZEROINIT,
NULL);
+        pBrush->hbmPattern = GreCreateBitmap(szPatSize, 0, BMF_1BPP, BMF_NOZEROINIT,
NULL);
         pPattern = SURFACE_Lock(pBrush->hbmPattern);
         GreSetBitmapBits(pPattern, sizeof(PatternDashDotDot), (PVOID)PatternDot);
         SURFACE_Unlock(pPattern);
@@ -115,7 +116,7 @@
 
     case PS_DASH:
         pBrush->flAttrs |= GDIBRUSH_IS_BITMAP;
-        pBrush->hbmPattern = GreCreateBitmap(szPatSize, 1, BMF_24BPP, BMF_NOZEROINIT,
NULL);
+        pBrush->hbmPattern = GreCreateBitmap(szPatSize, 0, BMF_1BPP, BMF_NOZEROINIT,
NULL);
         pPattern = SURFACE_Lock(pBrush->hbmPattern);
         GreSetBitmapBits(pPattern, sizeof(PatternDashDotDot), (PVOID)PatternDash);
         SURFACE_Unlock(pPattern);
@@ -123,7 +124,7 @@
 
     case PS_DASHDOT:
         pBrush->flAttrs |= GDIBRUSH_IS_BITMAP;
-        pBrush->hbmPattern = GreCreateBitmap(szPatSize, 1, BMF_24BPP, BMF_NOZEROINIT,
NULL);
+        pBrush->hbmPattern = GreCreateBitmap(szPatSize, 0, BMF_1BPP, BMF_NOZEROINIT,
NULL);
         pPattern = SURFACE_Lock(pBrush->hbmPattern);
         GreSetBitmapBits(pPattern, sizeof(PatternDashDotDot), (PVOID)PatternDashDot);
         SURFACE_Unlock(pPattern);
@@ -131,7 +132,7 @@
 
     case PS_DASHDOTDOT:
         pBrush->flAttrs |= GDIBRUSH_IS_BITMAP;
-        pBrush->hbmPattern = GreCreateBitmap(szPatSize, 1, BMF_24BPP, BMF_NOZEROINIT,
NULL);
+        pBrush->hbmPattern = GreCreateBitmap(szPatSize, 0, BMF_1BPP, BMF_NOZEROINIT,
NULL);
         pPattern = SURFACE_Lock(pBrush->hbmPattern);
         GreSetBitmapBits(pPattern, sizeof(PatternDashDotDot), (PVOID)PatternDashDotDot);
         SURFACE_Unlock(pPattern);
@@ -223,7 +224,11 @@
 NTAPI
 GreFreeBrush(PBRUSHGDI pBrush)
 {
-    /* Just free the memory */
+    /* Free the pattern bitmap if any */
+    if (pBrush->hbmPattern)
+        GreDeleteBitmap(pBrush->hbmPattern);
+
+    /* Free the memory */
     EngFreeMem(pBrush);
 }
 

Modified: branches/arwinss/reactos/subsystems/win32/win32k/gre/surfobj.c
URL:
http://svn.reactos.org/svn/reactos/branches/arwinss/reactos/subsystems/win3…
==============================================================================
--- branches/arwinss/reactos/subsystems/win32/win32k/gre/surfobj.c [iso-8859-1]
(original)
+++ branches/arwinss/reactos/subsystems/win32/win32k/gre/surfobj.c [iso-8859-1] Wed Aug  5
14:35:19 2009
@@ -160,20 +160,13 @@
     pSurfObj->iType = STYPE_BITMAP;
     pSurfObj->fjBitmap = Flags & (BMF_TOPDOWN | BMF_NOZEROINIT);
 
+    /* Calculate byte width automatically if it was not provided */
+    if (Width == 0)
+        Width = BITMAP_GetWidthBytes(Size.cx, BitsPerFormat(Format));
+
     pSurfObj->lDelta = abs(Width);
     pSurfObj->cjBits = pSurfObj->lDelta * Size.cy;
 
-#if 0
-    if (!Bits)
-    {
-        DPRINT1("Bitmaps without Bits aren't supported yet!\n");
-
-        /* Cleanup and exit */
-        free_gdi_handle(hSurface);
-        ExFreePool(pSurface);
-        return 0;
-    }
-#endif
     if (!Bits)
     {
         /* Allocate memory for bitmap bits */