0867943b9f
If this doesn't work, one at a time... BUG=skia:4126 No public API changes. TBR=reed@google.com Review URL: https://codereview.chromium.org/1255373006
61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
/*
|
|
* Copyright 2015 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#ifndef SkMiniRecorder_DEFINED
|
|
#define SkMiniRecorder_DEFINED
|
|
|
|
#include "SkRecords.h"
|
|
#include "SkScalar.h"
|
|
#include "SkTypes.h"
|
|
class SkCanvas;
|
|
|
|
// Records small pictures, but only a limited subset of the canvas API, and may fail.
|
|
class SkMiniRecorder : SkNoncopyable {
|
|
public:
|
|
SkMiniRecorder();
|
|
~SkMiniRecorder();
|
|
|
|
// Try to record an op. Returns false on failure.
|
|
bool drawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst,
|
|
const SkPaint*, SkCanvas::SrcRectConstraint);
|
|
bool drawPath(const SkPath&, const SkPaint&);
|
|
bool drawRect(const SkRect&, const SkPaint&);
|
|
bool drawTextBlob(const SkTextBlob*, SkScalar x, SkScalar y, const SkPaint&);
|
|
|
|
// Detach anything we've recorded as a picture, resetting this SkMiniRecorder.
|
|
SkPicture* detachAsPicture(const SkRect& cull);
|
|
|
|
// Flush anything we've recorded to the canvas, resetting this SkMiniRecorder.
|
|
// This is logically the same as but rather more efficient than:
|
|
// SkAutoTUnref<SkPicture> pic(this->detachAsPicture(SkRect::MakeEmpty()));
|
|
// pic->playback(canvas);
|
|
void flushAndReset(SkCanvas*);
|
|
|
|
private:
|
|
enum class State {
|
|
kEmpty,
|
|
kDrawBitmapRectFixedSize,
|
|
kDrawPath,
|
|
kDrawRect,
|
|
kDrawTextBlob,
|
|
};
|
|
|
|
State fState;
|
|
|
|
template <size_t A, size_t B>
|
|
struct Max { static const size_t val = A > B ? A : B; };
|
|
|
|
static const size_t kInlineStorage =
|
|
Max<sizeof(SkRecords::DrawBitmapRectFixedSize),
|
|
Max<sizeof(SkRecords::DrawPath),
|
|
Max<sizeof(SkRecords::DrawRect),
|
|
sizeof(SkRecords::DrawTextBlob)>::val>::val>::val;
|
|
SkAlignedSStorage<kInlineStorage> fBuffer;
|
|
};
|
|
|
|
#endif//SkMiniRecorder_DEFINED
|