diff options
author | Florin Malita <fmalita@chromium.org> | 2017-05-25 15:29:13 -0400 |
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committer | Skia Commit-Bot <skia-commit-bot@chromium.org> | 2017-05-25 20:05:08 +0000 |
commit | fabe0b26d05624ce7374f6ca89bd66df6142534e (patch) | |
tree | f32b5873b31185d7e86e6c48fbdbd654efb8af7a /src/shaders/SkPictureShader.h | |
parent | 1c214313248a4b5a69af14539608c54fb67c2bf8 (diff) |
Relocate shaders to own dir
Consolidate all shader impls under src/shaders/.
Change-Id: I450e37541214704c1ad9e379d9d753b7cc62fac3
Reviewed-on: https://skia-review.googlesource.com/17927
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Herb Derby <herb@google.com>
Diffstat (limited to 'src/shaders/SkPictureShader.h')
-rw-r--r-- | src/shaders/SkPictureShader.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/shaders/SkPictureShader.h b/src/shaders/SkPictureShader.h new file mode 100644 index 0000000000..f7a509f181 --- /dev/null +++ b/src/shaders/SkPictureShader.h @@ -0,0 +1,79 @@ +/* + * Copyright 2014 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef SkPictureShader_DEFINED +#define SkPictureShader_DEFINED + +#include "SkShaderBase.h" + +class SkArenaAlloc; +class SkBitmap; +class SkPicture; + +/* + * An SkPictureShader can be used to draw SkPicture-based patterns. + * + * The SkPicture is first rendered into a tile, which is then used to shade the area according + * to specified tiling rules. + */ +class SkPictureShader : public SkShaderBase { +public: + static sk_sp<SkShader> Make(sk_sp<SkPicture>, TileMode, TileMode, const SkMatrix*, + const SkRect*); + + SK_TO_STRING_OVERRIDE() + SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPictureShader) + +#if SK_SUPPORT_GPU + sk_sp<GrFragmentProcessor> asFragmentProcessor(const AsFPArgs&) const override; +#endif + +protected: + SkPictureShader(SkReadBuffer&); + void flatten(SkWriteBuffer&) const override; + bool onAppendStages(SkRasterPipeline*, SkColorSpace*, SkArenaAlloc*, + const SkMatrix&, const SkPaint&, const SkMatrix*) const override; + Context* onMakeContext(const ContextRec&, SkArenaAlloc*) const override; + sk_sp<SkShader> onMakeColorSpace(SkColorSpaceXformer* xformer) const override; + +private: + SkPictureShader(sk_sp<SkPicture>, TileMode, TileMode, const SkMatrix*, const SkRect*, + sk_sp<SkColorSpace>); + + sk_sp<SkShader> refBitmapShader(const SkMatrix&, const SkMatrix* localMatrix, + SkColorSpace* dstColorSpace, + const int maxTextureSize = 0) const; + + sk_sp<SkPicture> fPicture; + SkRect fTile; + TileMode fTmx, fTmy; + + class PictureShaderContext : public Context { + public: + PictureShaderContext( + const SkPictureShader&, const ContextRec&, sk_sp<SkShader> bitmapShader, SkArenaAlloc*); + + uint32_t getFlags() const override; + + ShadeProc asAShadeProc(void** ctx) override; + void shadeSpan(int x, int y, SkPMColor dstC[], int count) override; + + sk_sp<SkShader> fBitmapShader; + SkShaderBase::Context* fBitmapShaderContext; + void* fBitmapShaderContextStorage; + + typedef Context INHERITED; + }; + + // Should never be set by a public constructor. This is only used when onMakeColorSpace() + // forces a deferred color space xform. + sk_sp<SkColorSpace> fColorSpace; + + typedef SkShaderBase INHERITED; +}; + +#endif // SkPictureShader_DEFINED |