add SkCanvas::drawAtlas

src/core/SkPicturePlayback.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCanvas.h"
 #include "SkPatchUtils.h"
 #include "SkPictureData.h"
 #include "SkPicturePlayback.h"
 #include "SkPictureRecord.h"
 #include "SkReader32.h"
+#include "SkRSXform.h"
 #include "SkTextBlob.h"
 #include "SkTDArray.h"
 #include "SkTypes.h"
 
 /*
  * Read the next op code and chunk size from 'reader'. The returned size
  * is the entire size of the chunk (including the opcode). Thus, the
  * offset just prior to calling ReadOpAndSize + 'size' is the offset
  * to the next chunk's op code. This also means that the size of a chunk
  * with no arguments (just an opcode) will be 4.
@@ skipping 125 matching lines @@
             }
         } break;
         case PUSH_CULL: break;  // Deprecated, safe to ignore both push and pop.
         case POP_CULL:  break;
         case CONCAT: {
             SkMatrix matrix;
             reader->readMatrix(&matrix);
             canvas->concat(matrix);
             break;
         }
+        case DRAW_ATLAS: {
+            const SkPaint* paint = fPictureData->getPaint(reader);
+            const SkImage* atlas = fPictureData->getImage(reader);
+            const uint32_t flags = reader->readU32();
+            const int count = reader->readU32();
+            const SkRSXform* xform = (const SkRSXform*)reader->skip(count * sizeof(SkRSXform));
+            const SkRect* tex = (const SkRect*)reader->skip(count * sizeof(SkRect));
+            const SkColor* colors = NULL;
+            SkXfermode::Mode mode = SkXfermode::kDst_Mode;
+            if (flags & DRAW_ATLAS_HAS_COLORS) {
+                colors = (const SkColor*)reader->skip(count * sizeof(SkColor));
+                mode = (SkXfermode::Mode)reader->readU32();
+            }
+            const SkRect* cull = NULL;
+            if (flags & DRAW_ATLAS_HAS_CULL) {
+                cull = (const SkRect*)reader->skip(sizeof(SkRect));
+            }
+            canvas->drawAtlas(atlas, xform, tex, colors, count, mode, cull, paint);
+        } break;
         case DRAW_BITMAP: {
             const SkPaint* paint = fPictureData->getPaint(reader);
             const SkBitmap bitmap = shallow_copy(fPictureData->getBitmap(reader));
             const SkPoint& loc = reader->skipT<SkPoint>();
             canvas->drawBitmap(bitmap, loc.fX, loc.fY, paint);
         } break;
         case DRAW_BITMAP_RECT_TO_RECT: {
             const SkPaint* paint = fPictureData->getPaint(reader);
             const SkBitmap bitmap = shallow_copy(fPictureData->getBitmap(reader));
             const SkRect* src = get_rect_ptr(reader);   // may be null
@@ skipping 277 matching lines @@
         case TRANSLATE: {
             SkScalar dx = reader->readScalar();
             SkScalar dy = reader->readScalar();
             canvas->translate(dx, dy);
         } break;
         default:
             SkASSERTF(false, "Unknown draw type: %d", op);
     }
 }