Pass effects directly to fontcache

src/core/SkPaint.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkPaint.h"
 #include "SkAutoKern.h"
 #include "SkChecksum.h"
@@ skipping 412 matching lines @@
     matrix.setConcat(ctm, textM);
     return tooBig(matrix, MaxCacheSize2());
 }
 
 
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "SkGlyphCache.h"
 #include "SkUtils.h"
 
-static void DetachDescProc(SkTypeface* typeface, const SkDescriptor* desc,
-                           void* context) {
-    *((SkGlyphCache**)context) = SkGlyphCache::DetachCache(typeface, desc);
+static void DetachDescProc(SkTypeface* typeface, const SkScalerContextEffects& effects,
+                           const SkDescriptor* desc, void* context) {
+    *((SkGlyphCache**)context) = SkGlyphCache::DetachCache(typeface, effects, desc);
 }
 
-int SkPaint::textToGlyphs(const void* textData, size_t byteLength,
-                          uint16_t glyphs[]) const {
+int SkPaint::textToGlyphs(const void* textData, size_t byteLength, uint16_t glyphs[]) const {
     if (byteLength == 0) {
         return 0;
     }
 
     SkASSERT(textData != nullptr);
 
     if (nullptr == glyphs) {
         switch (this->getTextEncoding()) {
         case kUTF8_TextEncoding:
             return SkUTF8_CountUnichars((const char*)textData, byteLength);
@@ skipping 481 matching lines @@
     return text - stop + length;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 static bool FontMetricsCacheProc(const SkGlyphCache* cache, void* context) {
     *(SkPaint::FontMetrics*)context = cache->getFontMetrics();
     return false;   // don't detach the cache
 }
 
-static void FontMetricsDescProc(SkTypeface* typeface, const SkDescriptor* desc,
-                                void* context) {
-    SkGlyphCache::VisitCache(typeface, desc, FontMetricsCacheProc, context);
+static void FontMetricsDescProc(SkTypeface* typeface, const SkScalerContextEffects& effects,
+                                const SkDescriptor* desc, void* context) {
+    SkGlyphCache::VisitCache(typeface, effects, desc, FontMetricsCacheProc, context);
 }
 
 SkScalar SkPaint::getFontMetrics(FontMetrics* metrics, SkScalar zoom) const {
     SkCanonicalizePaint canon(*this);
     const SkPaint& paint = canon.getPaint();
     SkScalar scale = canon.getScale();
 
     SkMatrix zoomMatrix, *zoomPtr = nullptr;
     if (zoom) {
         zoomMatrix.setScale(zoom, zoom);
@@ skipping 687 matching lines @@
     SkASSERT(descSize == desc1->getLength());
     SkASSERT(descSize == desc2->getLength());
     desc1->computeChecksum();
     desc2->computeChecksum();
     SkASSERT(!memcmp(desc, desc1, descSize));
     SkASSERT(!memcmp(desc, desc2, descSize));
 }
 #endif
 
 /* see the note on ignoreGamma on descriptorProc */
-void SkPaint::getScalerContextDescriptor(SkAutoDescriptor* ad,
+void SkPaint::getScalerContextDescriptor(SkScalerContextEffects* effects,
+                                         SkAutoDescriptor* ad,
                                          const SkSurfaceProps& surfaceProps,
                                          uint32_t scalerContextFlags,
                                          const SkMatrix* deviceMatrix) const {
     SkScalerContext::Rec    rec;
 
     SkPathEffect*   pe = this->getPathEffect();
     SkMaskFilter*   mf = this->getMaskFilter();
     SkRasterizer*   ra = this->getRasterizer();
 
     SkWriteBuffer   peBuffer, mfBuffer, raBuffer;
     size_t descSize = fill_out_rec(*this, &rec, &surfaceProps,
                                    SkToBool(scalerContextFlags & kFakeGamma_ScalerContextFlag),
                                    SkToBool(scalerContextFlags & kBoostContrast_ScalerContextFlag),
                                    deviceMatrix, pe, &peBuffer, mf, &mfBuffer, ra, &raBuffer);
 
     ad->reset(descSize);
     SkDescriptor* desc = ad->getDesc();
 
     write_out_descriptor(desc, rec, pe, &peBuffer, mf, &mfBuffer, ra, &raBuffer, descSize);
 
     SkASSERT(descSize == desc->getLength());
 
 #ifdef TEST_DESC
     test_desc(rec, pe, &peBuffer, mf, &mfBuffer, ra, &raBuffer, desc, descSize);
 #endif
+
+    effects->fPathEffect = pe;
+    effects->fMaskFilter = mf;
+    effects->fRasterizer = ra;
 }
 
 /*
  *  ignoreGamma tells us that the caller just wants metrics that are unaffected
  *  by gamma correction, so we set the rec to ignore preblend: i.e. gamma = 1,
  *  contrast = 0, luminanceColor = transparent black.
  */
 void SkPaint::descriptorProc(const SkSurfaceProps* surfaceProps,
                              uint32_t scalerContextFlags,
                              const SkMatrix* deviceMatrix,
-                             void (*proc)(SkTypeface*, const SkDescriptor*, void*),
+                             void (*proc)(SkTypeface*, const SkScalerContextEffects&,
+                                          const SkDescriptor*, void*),
                              void* context) const {
     SkScalerContext::Rec    rec;
 
     SkPathEffect*   pe = this->getPathEffect();
     SkMaskFilter*   mf = this->getMaskFilter();
     SkRasterizer*   ra = this->getRasterizer();
 
     SkWriteBuffer   peBuffer, mfBuffer, raBuffer;
     size_t descSize = fill_out_rec(*this, &rec, surfaceProps,
                                    SkToBool(scalerContextFlags & kFakeGamma_ScalerContextFlag),
                                    SkToBool(scalerContextFlags & kBoostContrast_ScalerContextFlag),
                                    deviceMatrix, pe, &peBuffer, mf, &mfBuffer, ra, &raBuffer);
 
     SkAutoDescriptor    ad(descSize);
     SkDescriptor*       desc = ad.getDesc();
 
     write_out_descriptor(desc, rec, pe, &peBuffer, mf, &mfBuffer, ra, &raBuffer, descSize);
 
     SkASSERT(descSize == desc->getLength());
 
 #ifdef TEST_DESC
     test_desc(rec, pe, &peBuffer, mf, &mfBuffer, ra, &raBuffer, desc, descSize);
 #endif
 
-    proc(fTypeface.get(), desc, context);
+    proc(fTypeface.get(), { pe, mf, ra }, desc, context);
 }
 
 SkGlyphCache* SkPaint::detachCache(const SkSurfaceProps* surfaceProps,
                                    uint32_t scalerContextFlags,
                                    const SkMatrix* deviceMatrix) const {
     SkGlyphCache* cache;
     this->descriptorProc(surfaceProps, scalerContextFlags, deviceMatrix, DetachDescProc, &cache);
     return cache;
 }
 
@@ skipping 643 matching lines @@
 }
 
 uint32_t SkPaint::getHash() const {
     // We're going to hash 10 pointers and 7 32-bit values, finishing up with fBitfields,
     // so fBitfields should be 10 pointers and 6 32-bit values from the start.
     static_assert(offsetof(SkPaint, fBitfields) == 9 * sizeof(void*) + 6 * sizeof(uint32_t),
                   "SkPaint_notPackedTightly");
     return SkChecksum::Murmur3(reinterpret_cast<const uint32_t*>(this),
                                offsetof(SkPaint, fBitfields) + sizeof(fBitfields));
 }