Minor changes to GrFontCache system

src/gpu/GrTextStrike.cpp

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrAtlas.h"
 #include "GrGpu.h"
 #include "GrRectanizer.h"
 #include "GrTextStrike.h"
 #include "GrTextStrike_impl.h"
 #include "SkString.h"
 
 #include "SkDistanceFieldGen.h"
 
 ///////////////////////////////////////////////////////////////////////////////
 
+#define GR_ATLAS_TEXTURE_WIDTH 1024
+#define GR_ATLAS_TEXTURE_HEIGHT 2048
+
+#define GR_PLOT_WIDTH  256
+#define GR_PLOT_HEIGHT 256
+
+#define GR_NUM_PLOTS_X   (GR_ATLAS_TEXTURE_WIDTH / GR_PLOT_WIDTH)
+#define GR_NUM_PLOTS_Y   (GR_ATLAS_TEXTURE_HEIGHT / GR_PLOT_HEIGHT)
+
 #define FONT_CACHE_STATS 0
 #if FONT_CACHE_STATS
 static int g_PurgeCount = 0;
 #endif
 
 GrFontCache::GrFontCache(GrGpu* gpu) : fGpu(gpu) {
     gpu->ref();
     for (int i = 0; i < kAtlasCount; ++i) {
         fAtlasMgr[i] = NULL;
     }
@@ skipping 36 matching lines @@
     SkASSERT(sAtlasIndices[format] < GrFontCache::kAtlasCount);
     return sAtlasIndices[format];
 }
 
 GrTextStrike* GrFontCache::generateStrike(GrFontScaler* scaler,
                                           const Key& key) {
     GrMaskFormat format = scaler->getMaskFormat();
     GrPixelConfig config = mask_format_to_pixel_config(format);
     int atlasIndex = mask_format_to_atlas_index(format);
     if (NULL == fAtlasMgr[atlasIndex]) {
-        fAtlasMgr[atlasIndex] = SkNEW_ARGS(GrAtlasMgr, (fGpu, config));
+        SkISize textureSize = SkISize::Make(GR_ATLAS_TEXTURE_WIDTH,
+                                            GR_ATLAS_TEXTURE_HEIGHT);
+        fAtlasMgr[atlasIndex] = SkNEW_ARGS(GrAtlasMgr, (fGpu, config,
+                                                        textureSize,
+                                                        GR_NUM_PLOTS_X,
+                                                        GR_NUM_PLOTS_Y));
     }
     GrTextStrike* strike = SkNEW_ARGS(GrTextStrike,
                                       (this, scaler->getKey(), format, fAtlasMgr[atlasIndex]));
     fCache.insert(key, strike);
 
     if (fHead) {
         fHead->fPrev = strike;
     } else {
         SkASSERT(NULL == fTail);
         fTail = strike;
@@ skipping 269 matching lines @@
                                      &glyph->fAtlasLocation);
     }
 
     if (NULL == plot) {
         return false;
     }
 
     glyph->fPlot = plot;
     return true;
 }