Start whittling down GrTextContext

src/gpu/text/GrAtlasTextContext.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "GrAtlasTextContext.h"
 
 #include "GrDrawContext.h"
 #include "GrDrawTarget.h"
@@ skipping 24 matching lines @@
 #include "batches/GrAtlasTextBatch.h"
 
 GrAtlasTextContext::GrAtlasTextContext(GrContext* context, const SkSurfaceProps& surfaceProps)
     : INHERITED(context, surfaceProps)
     , fDistanceAdjustTable(new GrDistanceFieldAdjustTable) {
     // We overallocate vertices in our textblobs based on the assumption that A8 has the greatest
     // vertexStride
     static_assert(GrAtlasTextBlob::kGrayTextVASize >= GrAtlasTextBlob::kColorTextVASize &&
                   GrAtlasTextBlob::kGrayTextVASize >= GrAtlasTextBlob::kLCDTextVASize,
                   "vertex_attribute_changed");
-    fCurrStrike = nullptr;
     fCache = context->getTextBlobCache();
 }
 
 
 GrAtlasTextContext* GrAtlasTextContext::Create(GrContext* context,
                                                const SkSurfaceProps& surfaceProps) {
     return new GrAtlasTextContext(context, surfaceProps);
 }
 
 bool GrAtlasTextContext::canDraw(const SkPaint& skPaint, const SkMatrix& viewMatrix) {
@@ skipping 251 matching lines @@
                                    skPaint, paint.getColor(), viewMatrix, text,
                                    byteLength, pos, scalarsPerPosition, offset);
     } else {
         GrTextUtils::DrawBmpPosText(blob, 0, fContext->getBatchFontCache(), fSurfaceProps, skPaint,
                                     paint.getColor(), viewMatrix, text,
                                     byteLength, pos, scalarsPerPosition, offset);
     }
     return blob;
 }
 
-void GrAtlasTextContext::onDrawText(GrDrawContext* dc,
-                                    const GrClip& clip,
-                                    const GrPaint& paint, const SkPaint& skPaint,
-                                    const SkMatrix& viewMatrix,
-                                    const char text[], size_t byteLength,
-                                    SkScalar x, SkScalar y, const SkIRect& regionClipBounds) {
-    SkAutoTUnref<GrAtlasTextBlob> blob(
-        this->createDrawTextBlob(paint, skPaint, viewMatrix, text, byteLength, x, y));
-    blob->flushThrowaway(fContext, dc, fSurfaceProps, fDistanceAdjustTable, skPaint, paint,
-                         clip, regionClipBounds);
+void GrAtlasTextContext::drawText(GrDrawContext* dc,
+                                  const GrClip& clip,
+                                  const GrPaint& paint, const SkPaint& skPaint,
+                                  const SkMatrix& viewMatrix,
+                                  const char text[], size_t byteLength,
+                                  SkScalar x, SkScalar y, const SkIRect& regionClipBounds) {
+    if (fContext->abandoned()) {
+        return;
+    } else if (this->canDraw(skPaint, viewMatrix)) {
+        SkAutoTUnref<GrAtlasTextBlob> blob(
+            this->createDrawTextBlob(paint, skPaint, viewMatrix, text, byteLength, x, y));
+        blob->flushThrowaway(fContext, dc, fSurfaceProps, fDistanceAdjustTable, skPaint, paint,
+                             clip, regionClipBounds);
+        return;
+    }
+
+    // fall back to drawing as a path
+    GrTextUtils::DrawTextAsPath(fContext, dc, clip, skPaint, viewMatrix, text, byteLength, x, y,
+                                regionClipBounds);
 }
 
-void GrAtlasTextContext::onDrawPosText(GrDrawContext* dc,
-                                       const GrClip& clip,
-                                       const GrPaint& paint, const SkPaint& skPaint,
-                                       const SkMatrix& viewMatrix,
-                                       const char text[], size_t byteLength,
-                                       const SkScalar pos[], int scalarsPerPosition,
-                                       const SkPoint& offset, const SkIRect& regionClipBounds) {
-    SkAutoTUnref<GrAtlasTextBlob> blob(
-        this->createDrawPosTextBlob(paint, skPaint, viewMatrix,
-                                    text, byteLength,
-                                    pos, scalarsPerPosition,
-                                    offset));
+void GrAtlasTextContext::drawPosText(GrDrawContext* dc,
+                                     const GrClip& clip,
+                                     const GrPaint& paint, const SkPaint& skPaint,
+                                     const SkMatrix& viewMatrix,
+                                     const char text[], size_t byteLength,
+                                     const SkScalar pos[], int scalarsPerPosition,
+                                     const SkPoint& offset, const SkIRect& regionClipBounds) {
+    if (fContext->abandoned()) {
+        return;
+    } else if (this->canDraw(skPaint, viewMatrix)) {
+        SkAutoTUnref<GrAtlasTextBlob> blob(
+            this->createDrawPosTextBlob(paint, skPaint, viewMatrix,
+                                        text, byteLength,
+                                        pos, scalarsPerPosition,
+                                        offset));
+        blob->flushThrowaway(fContext, dc, fSurfaceProps, fDistanceAdjustTable, skPaint, paint,
+                             clip, regionClipBounds);
+        return;
+    }
 
-    blob->flushThrowaway(fContext, dc, fSurfaceProps, fDistanceAdjustTable, skPaint, paint, clip,
-                         regionClipBounds);
+    // fall back to drawing as a path
+    GrTextUtils::DrawPosTextAsPath(fContext, dc, fSurfaceProps, clip, skPaint, viewMatrix, text,
+                                   byteLength, pos, scalarsPerPosition, offset, regionClipBounds);
 }
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
 #ifdef GR_TEST_UTILS
 
 DRAW_BATCH_TEST_DEFINE(TextBlobBatch) {
     static uint32_t gContextID = SK_InvalidGenID;
     static GrAtlasTextContext* gTextContext = nullptr;
     static SkSurfaceProps gSurfaceProps(SkSurfaceProps::kLegacyFontHost_InitType);
@@ skipping 37 matching lines @@
     // We'd like to be able to test this with random translations, but currently the vertex
     // bounds and vertices will get out of sync
     SkScalar transX = 0.f;//SkIntToScalar(random->nextU());
     SkScalar transY = 0.f;//SkIntToScalar(random->nextU());
     return blob->test_createBatch(textLen, 0, 0, color, transX, transY, skPaint,
                                   gSurfaceProps, gTextContext->dfAdjustTable(),
                                   context->getBatchFontCache());
 }
 
 #endif