diff options
author | Mike Klein <mtklein@google.com> | 2015-07-01 16:35:59 -0400 |
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committer | Mike Klein <mtklein@google.com> | 2015-07-01 16:35:59 -0400 |
commit | 478c9e4851eff5feb74dd2f8a14143bec569e1a8 (patch) | |
tree | 9acb07514c74296fe7b2b9dd17fa8a6ed907cf30 /src/core/SkMiniRecorder.h | |
parent | aa2a7de0ffaf8f864a7afc68bbd34ccb25876246 (diff) |
Revert "Move headers used by headers in include/ to include/private."
This reverts commit 928e16565f3e69cd6661e9ad300ac17e3f33c0c8.
BUG=skia:
Review URL: https://codereview.chromium.org/1213093004.
Diffstat (limited to 'src/core/SkMiniRecorder.h')
-rw-r--r-- | src/core/SkMiniRecorder.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/core/SkMiniRecorder.h b/src/core/SkMiniRecorder.h new file mode 100644 index 0000000000..914eccc2e3 --- /dev/null +++ b/src/core/SkMiniRecorder.h @@ -0,0 +1,50 @@ +/* + * 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 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, 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::DrawPath), + Max<sizeof(SkRecords::DrawRect), + sizeof(SkRecords::DrawTextBlob)>::val>::val; + SkAlignedSStorage<kInlineStorage> fBuffer; +}; + +#endif//SkMiniRecorder_DEFINED |