[khornicek] 54103: [GDI32] Partial winesync to reduce code duplication and fix a crash in gdi32 font winetest.

Author: khornicek
Date: Wed Oct 12 23:07:22 2011
New Revision: 54103

URL: http://svn.reactos.org/svn/reactos?rev=54103&view=rev
Log:
[GDI32]
Partial winesync to reduce code duplication and fix a crash in gdi32 font winetest.

Modified:
    trunk/reactos/dll/win32/gdi32/objects/font.c

Modified: trunk/reactos/dll/win32/gdi32/objects/font.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/gdi32/objects/fon...
==============================================================================
--- trunk/reactos/dll/win32/gdi32/objects/font.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/gdi32/objects/font.c [iso-8859-1] Wed Oct 12 23:07:22 2011
@@ -127,6 +127,50 @@
     return strW;
 }

+static LPSTR FONT_GetCharsByRangeA(HDC hdc, UINT firstChar, UINT lastChar, PINT pByteLen)
+{
+    INT i, count = lastChar - firstChar + 1;
+    UINT c;
+    LPSTR str;
+
+    if (count <= 0)
+        return NULL;
+
+    switch (GdiGetCodePage(hdc))
+    {
+    case 932:
+    case 936:
+    case 949:
+    case 950:
+    case 1361:
+        if (lastChar > 0xffff)
+            return NULL;
+        if ((firstChar ^ lastChar) > 0xff)
+            return NULL;
+        break;
+    default:
+        if (lastChar > 0xff)
+            return NULL;
+        break;
+    }
+
+    str = HeapAlloc(GetProcessHeap(), 0, count * 2 + 1);
+    if (str == NULL)
+        return NULL;
+
+    for(i = 0, c = firstChar; c <= lastChar; i++, c++)
+    {
+        if (c > 0xff)
+            str[i++] = (BYTE)(c >> 8);
+        str[i] = (BYTE)c;
+    }
+    str[i] = '\0';
+
+    *pByteLen = i;
+
+    return str;
+}
+
 VOID FASTCALL
 NewTextMetricW2A(NEWTEXTMETRICA *tma, NEWTEXTMETRICW *tmw)
 {
@@ -627,21 +671,16 @@
     LPINT	lpBuffer
 )
 {
-    INT i, wlen, count = (INT)(iLastChar - iFirstChar + 1);
+    INT wlen, count = 0;
     LPSTR str;
     LPWSTR wstr;
     BOOL ret = TRUE;

DPRINT("GetCharWidthsA\n");
-    if(count <= 0) return FALSE;
-
-    str = HeapAlloc(GetProcessHeap(), 0, count+1);
+
+    str = FONT_GetCharsByRangeA(hdc, iFirstChar, iLastChar, &count);
     if (!str)
         return FALSE;
-
-    for(i = 0; i < count; i++)
-        str[i] = (BYTE)(iFirstChar + i);
-    str[i] = '\0';

wstr = FONT_mbtowc(hdc, str, count+1, &wlen, NULL);
     if (!wstr)
@@ -675,20 +714,16 @@
     LPINT	lpBuffer
 )
 {
-    INT i, wlen, count = (INT)(iLastChar - iFirstChar + 1);
+    INT wlen, count = 0;
     LPSTR str;
     LPWSTR wstr;
     BOOL ret = TRUE;

DPRINT("GetCharWidths32A\n");
-    if(count <= 0) return FALSE;
-
-    str = HeapAlloc(GetProcessHeap(), 0, count+1);
+
+    str = FONT_GetCharsByRangeA(hdc, iFirstChar, iLastChar, &count);
     if (!str)
         return FALSE;
-    for(i = 0; i < count; i++)
-        str[i] = (BYTE)(iFirstChar + i);
-    str[i] = '\0';

wstr = FONT_mbtowc(hdc, str, count+1, &wlen, NULL);
     if (!wstr)
@@ -722,20 +757,16 @@
     PFLOAT	pxBuffer
 )
 {
-    INT i, wlen, count = (INT)(iLastChar - iFirstChar + 1);
+    INT wlen, count = 0;
     LPSTR str;
     LPWSTR wstr;
     BOOL ret = TRUE;

DPRINT("GetCharWidthsFloatA\n");
-    if(count <= 0) return FALSE;
-
-    str = HeapAlloc(GetProcessHeap(), 0, count+1);
+
+    str = FONT_GetCharsByRangeA(hdc, iFirstChar, iLastChar, &count);
     if (!str)
         return FALSE;
-    for(i = 0; i < count; i++)
-        str[i] = (BYTE)(iFirstChar + i);
-    str[i] = '\0';

wstr = FONT_mbtowc(hdc, str, count+1, &wlen, NULL);
     if (!wstr)
@@ -758,25 +789,21 @@
 APIENTRY
 GetCharABCWidthsA(
     HDC	hdc,
-    UINT	uFirstChar,
-    UINT	uLastChar,
+    UINT	iFirstChar,
+    UINT	iLastChar,
     LPABC	lpabc
 )
 {
-    INT i, wlen, count = (INT)(uLastChar - uFirstChar + 1);
+    INT wlen, count = 0;
     LPSTR str;
     LPWSTR wstr;
     BOOL ret = TRUE;

DPRINT("GetCharABCWidthsA\n");
-    if(count <= 0) return FALSE;
-
-    str = HeapAlloc(GetProcessHeap(), 0, count+1);
+
+    str = FONT_GetCharsByRangeA(hdc, iFirstChar, iLastChar, &count);
     if (!str)
         return FALSE;
-    for(i = 0; i < count; i++)
-        str[i] = (BYTE)(uFirstChar + i);
-    str[i] = '\0';

wstr = FONT_mbtowc(hdc, str, count+1, &wlen, NULL);
     if (!wstr)
@@ -810,21 +837,16 @@
     LPABCFLOAT	lpABCF
 )
 {
-    INT i, wlen, count = (INT)(iLastChar - iFirstChar + 1);
+    INT wlen, count = 0;
     LPSTR str;
     LPWSTR wstr;
     BOOL ret = TRUE;

DPRINT("GetCharABCWidthsFloatA\n");
-    if (count <= 0) return FALSE;
-
-    str = HeapAlloc(GetProcessHeap(), 0, count+1);
+
+    str = FONT_GetCharsByRangeA(hdc, iFirstChar, iLastChar, &count);
     if (!str)
         return FALSE;
-
-    for(i = 0; i < count; i++)
-        str[i] = (BYTE)(iFirstChar + i);
-    str[i] = '\0';

wstr = FONT_mbtowc( hdc, str, count+1, &wlen, NULL );
     if (!wstr)