skia2/tools/DDLTileHelper.h
Mike Klein c0bd9f9fe5 rewrite includes to not need so much -Ifoo
Current strategy: everything from the top

Things to look at first are the manual changes:

   - added tools/rewrite_includes.py
   - removed -Idirectives from BUILD.gn
   - various compile.sh simplifications
   - tweak tools/embed_resources.py
   - update gn/find_headers.py to write paths from the top
   - update gn/gn_to_bp.py SkUserConfig.h layout
     so that #include "include/config/SkUserConfig.h" always
     gets the header we want.

No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2019-04-24 16:27:11 +00:00

78 lines
2.5 KiB
C++

/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef DDLTileHelper_DEFINED
#define DDLTileHelper_DEFINED
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkSurfaceCharacterization.h"
class DDLPromiseImageHelper;
class SkCanvas;
class SkData;
class SkDeferredDisplayList;
class SkPicture;
class SkSurface;
class SkSurfaceCharacterization;
class DDLTileHelper {
public:
// TileData class encapsulates the information and behavior for a single tile/thread in
// a DDL rendering.
class TileData {
public:
TileData(sk_sp<SkSurface>, const SkIRect& clip);
// This method can be invoked in parallel
// In each thread we will reconvert the compressedPictureData into an SkPicture
// replacing each image-index with a promise image.
void createTileSpecificSKP(SkData* compressedPictureData,
const DDLPromiseImageHelper& helper);
// This method can be invoked in parallel
// Create the per-tile DDL from the per-tile SKP
void createDDL();
// This method operates serially and replays the recorded DDL into the tile surface.
void draw();
// This method also operates serially and composes the results of replaying the DDL into
// the final destination surface.
void compose(SkCanvas* dst);
void reset();
private:
sk_sp<SkSurface> fSurface;
SkSurfaceCharacterization fCharacterization;
SkIRect fClip; // in the device space of the dest canvas
sk_sp<SkPicture> fReconstitutedPicture;
SkTArray<sk_sp<SkImage>> fPromiseImages; // All the promise images in the
// reconstituted picture
std::unique_ptr<SkDeferredDisplayList> fDisplayList;
};
DDLTileHelper(SkCanvas* canvas, const SkIRect& viewport, int numDivisions);
void createSKPPerTile(SkData* compressedPictureData, const DDLPromiseImageHelper& helper);
void createDDLsInParallel();
void drawAllTilesAndFlush(GrContext*, bool flush);
void composeAllTiles(SkCanvas* dstCanvas);
void resetAllTiles();
private:
int fNumDivisions; // number of tiles along a side
SkTArray<TileData> fTiles;
};
#endif