[mkupfer] 34017: Jeffrey Morlan <mrnobo1024 AT yahoo DOT com> - Patch for Optimizations of TextIntGetTextExtentPoint - See issue #3366 for more details.

Author: mkupfer
Date: Wed Jun 18 14:15:37 2008
New Revision: 34017

URL: http://svn.reactos.org/svn/reactos?rev=34017&view=rev
Log:
Jeffrey Morlan <mrnobo1024 AT yahoo DOT com>
- Patch for Optimizations of TextIntGetTextExtentPoint
- See issue #3366 for more details.

Modified:
    trunk/reactos/subsystems/win32/win32k/objects/text.c

Modified: trunk/reactos/subsystems/win32/win32k/objects/text.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/obj...
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/objects/text.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/objects/text.c [iso-8859-1] Wed Jun 18 14:15:37 2008
@@ -3452,10 +3452,13 @@
   PFONTGDI FontGDI;
   FT_Face face;
   FT_GlyphSlot glyph;
+  FT_Glyph realglyph;
   INT error, n, glyph_index, i, previous;
   ULONGLONG TotalWidth = 0;
   FT_CharMap charmap, found = NULL;
   BOOL use_kerning;
+  FT_Render_Mode RenderMode;
+  BOOLEAN Render;

FontGDI = ObjToGDI(TextObj->Font, FONT);

@@ -3465,6 +3468,7 @@
       *Fit = 0;
     }

+  IntLockFreeType;
   if (face->charmap == NULL)
     {
       DPRINT("WARNING: No charmap selected!\n");
@@ -3486,23 +3490,25 @@
      DPRINT1("WARNING: Could not find desired charmap!\n");
    }

-      IntLockFreeType;
       error = FT_Set_Charmap(face, found);
-      IntUnLockFreeType;
       if (error)
    {
      DPRINT1("WARNING: Could not set the charmap!\n");
    }
     }

-  IntLockFreeType;
+  Render = IntIsFontRenderingEnabled();
+  if (Render)
+    RenderMode = IntGetFontRenderMode(&TextObj->logfont.elfEnumLogfontEx.elfLogFont);
+  else
+    RenderMode = FT_RENDER_MODE_MONO;
+
   error = FT_Set_Pixel_Sizes(face,
                              TextObj->logfont.elfEnumLogfontEx.elfLogFont.lfWidth,
                              /* FIXME should set character height if neg */
                              (TextObj->logfont.elfEnumLogfontEx.elfLogFont.lfHeight < 0 ?
                               - TextObj->logfont.elfEnumLogfontEx.elfLogFont.lfHeight :
                               TextObj->logfont.elfEnumLogfontEx.elfLogFont.lfHeight == 0 ? 11 : TextObj->logfont.elfEnumLogfontEx.elfLogFont.lfHeight));
-  IntUnLockFreeType;
   if (error)
     {
       DPRINT1("Error in setting pixel sizes: %u\n", error);
@@ -3513,27 +3519,36 @@

for (i = 0; i < Count; i++)
     {
-      IntLockFreeType;
       glyph_index = FT_Get_Char_Index(face, *String);
-      error = FT_Load_Glyph(face, glyph_index, FT_LOAD_DEFAULT);
-      IntUnLockFreeType;
-      if (error)
-	{
-	  DPRINT1("WARNING: Failed to load and render glyph! [index: %u]\n", glyph_index);
-	}
-      glyph = face->glyph;
+      if (!(realglyph = NtGdiGlyphCacheGet(face, glyph_index,
+          TextObj->logfont.elfEnumLogfontEx.elfLogFont.lfHeight)))
+        {
+          error = FT_Load_Glyph(face, glyph_index, FT_LOAD_DEFAULT);
+          if (error)
+            {
+              DPRINT1("WARNING: Failed to load and render glyph! [index: %u]\n", glyph_index);
+              break;
+            }
+
+          glyph = face->glyph;
+          realglyph = NtGdiGlyphCacheSet(face, glyph_index,
+             TextObj->logfont.elfEnumLogfontEx.elfLogFont.lfHeight, glyph, RenderMode);
+          if (!realglyph)
+            {
+              DPRINT1("Failed to render glyph! [index: %u]\n", glyph_index);
+              break;
+            }
+        }

/* retrieve kerning distance */
       if (use_kerning && previous && glyph_index)
    {
      FT_Vector delta;
-          IntLockFreeType;
      FT_Get_Kerning(face, previous, glyph_index, 0, &delta);
-          IntUnLockFreeType;
      TotalWidth += delta.x;
    }

-      TotalWidth += glyph->advance.x;
+      TotalWidth += realglyph->advance.x >> 10;

if (((TotalWidth + 32) >> 6) <= MaxExtent && NULL != Fit)
    {
@@ -3547,6 +3562,7 @@
       previous = glyph_index;
       String++;
     }
+  IntUnLockFreeType;

Size->cx = (TotalWidth + 32) >> 6;
   Size->cy = (TextObj->logfont.elfEnumLogfontEx.elfLogFont.lfHeight < 0 ? - TextObj->logfont.elfEnumLogfontEx.elfLogFont.lfHeight : TextObj->logfont.elfEnumLogfontEx.elfLogFont.lfHeight);