| /* |
| * 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 GrRenderTargetContext_DEFINED |
| #define GrRenderTargetContext_DEFINED |
| |
| #include "../private/GrRenderTargetProxy.h" |
| #include "GrContext.h" |
| #include "GrContextPriv.h" |
| #include "GrPaint.h" |
| #include "GrSurfaceContext.h" |
| #include "GrTypesPriv.h" |
| #include "GrXferProcessor.h" |
| #include "SkCanvas.h" |
| #include "SkDrawable.h" |
| #include "SkRefCnt.h" |
| #include "SkSurfaceProps.h" |
| #include "text/GrTextTarget.h" |
| |
| class GrBackendSemaphore; |
| class GrClip; |
| class GrColorSpaceXform; |
| class GrCoverageCountingPathRenderer; |
| class GrDrawingManager; |
| class GrDrawOp; |
| class GrFixedClip; |
| class GrRenderTarget; |
| class GrRenderTargetContextPriv; |
| class GrRenderTargetOpList; |
| class GrShape; |
| class GrStyle; |
| class GrTextureProxy; |
| struct GrUserStencilSettings; |
| struct SkDrawShadowRec; |
| class SkGlyphRunList; |
| struct SkIPoint; |
| struct SkIRect; |
| class SkLatticeIter; |
| class SkMatrix; |
| class SkPaint; |
| class SkPath; |
| struct SkPoint; |
| struct SkRect; |
| class SkRegion; |
| class SkRRect; |
| struct SkRSXform; |
| class SkTextBlob; |
| class SkVertices; |
| |
| /** |
| * A helper object to orchestrate commands (draws, etc...) for GrSurfaces that are GrRenderTargets. |
| */ |
| class SK_API GrRenderTargetContext : public GrSurfaceContext { |
| public: |
| ~GrRenderTargetContext() override; |
| |
| virtual void drawGlyphRunList(const GrClip&, const SkMatrix& viewMatrix, const SkGlyphRunList&); |
| |
| /** |
| * Provides a perfomance hint that the render target's contents are allowed |
| * to become undefined. |
| */ |
| void discard(); |
| |
| enum class CanClearFullscreen : bool { |
| kNo = false, |
| kYes = true |
| }; |
| |
| /** |
| * Clear the entire or rect of the render target, ignoring any clips. |
| * @param rect the rect to clear or the whole thing if rect is NULL. |
| * @param color the color to clear to. |
| * @param CanClearFullscreen allows partial clears to be converted to fullscreen clears on |
| * tiling platforms where that is an optimization. |
| */ |
| void clear(const SkIRect* rect, const SkPMColor4f& color, CanClearFullscreen); |
| |
| /** |
| * Draw everywhere (respecting the clip) with the paint. |
| */ |
| void drawPaint(const GrClip&, GrPaint&&, const SkMatrix& viewMatrix); |
| |
| /** |
| * Draw the rect using a paint. |
| * @param paint describes how to color pixels. |
| * @param GrAA Controls whether rect is antialiased |
| * @param viewMatrix transformation matrix |
| * @param style The style to apply. Null means fill. Currently path effects are not |
| * allowed. |
| * The rects coords are used to access the paint (through texture matrix) |
| */ |
| void drawRect(const GrClip&, |
| GrPaint&& paint, |
| GrAA, |
| const SkMatrix& viewMatrix, |
| const SkRect&, |
| const GrStyle* style = nullptr); |
| |
| /** |
| * Maps a rectangle of shader coordinates to a rectangle and fills that rectangle. |
| * |
| * @param paint describes how to color pixels. |
| * @param GrAA Controls whether rect is antialiased |
| * @param viewMatrix transformation matrix which applies to rectToDraw |
| * @param rectToDraw the rectangle to draw |
| * @param localRect the rectangle of shader coordinates applied to rectToDraw |
| */ |
| void fillRectToRect(const GrClip&, |
| GrPaint&& paint, |
| GrAA, |
| const SkMatrix& viewMatrix, |
| const SkRect& rectToDraw, |
| const SkRect& localRect); |
| |
| /** |
| * Fills a rect with a paint and a localMatrix. |
| */ |
| void fillRectWithLocalMatrix(const GrClip& clip, |
| GrPaint&& paint, |
| GrAA, |
| const SkMatrix& viewMatrix, |
| const SkRect& rect, |
| const SkMatrix& localMatrix); |
| |
| /** Used with drawQuadSet */ |
| struct QuadSetEntry { |
| SkRect fRect; |
| SkPMColor4f fColor; // Overrides any color on the GrPaint |
| SkMatrix fLocalMatrix; |
| GrQuadAAFlags fAAFlags; |
| }; |
| |
| void drawQuadSet(const GrClip& clip, GrPaint&& paint, GrAA aa, const SkMatrix& viewMatrix, |
| const QuadSetEntry[], int cnt); |
| |
| /** |
| * Creates an op that draws a subrectangle of a texture. The passed color is modulated by the |
| * texture's color. 'srcRect' specifies the rectangle of the texture to draw. 'dstRect' |
| * specifies the rectangle to draw in local coords which will be transformed by 'viewMatrix' to |
| * device space. |
| */ |
| void drawTexture(const GrClip& clip, sk_sp<GrTextureProxy>, GrSamplerState::Filter, |
| const SkPMColor4f&, const SkRect& srcRect, const SkRect& dstRect, |
| GrQuadAAFlags, SkCanvas::SrcRectConstraint, const SkMatrix& viewMatrix, |
| sk_sp<GrColorSpaceXform> texXform); |
| |
| /** Used with drawTextureSet */ |
| struct TextureSetEntry { |
| sk_sp<GrTextureProxy> fProxy; |
| SkRect fSrcRect; |
| SkRect fDstRect; |
| float fAlpha; |
| GrQuadAAFlags fAAFlags; |
| }; |
| /** |
| * Draws a set of textures with a shared filter, color, view matrix, color xform, and |
| * texture color xform. The textures must all have the same GrTextureType and GrConfig. |
| */ |
| void drawTextureSet(const GrClip&, const TextureSetEntry[], int cnt, GrSamplerState::Filter, |
| const SkMatrix& viewMatrix, sk_sp<GrColorSpaceXform> texXform); |
| |
| /** |
| * Draw a roundrect using a paint. |
| * |
| * @param paint describes how to color pixels. |
| * @param GrAA Controls whether rrect is antialiased. |
| * @param viewMatrix transformation matrix |
| * @param rrect the roundrect to draw |
| * @param style style to apply to the rrect. Currently path effects are not allowed. |
| */ |
| void drawRRect(const GrClip&, |
| GrPaint&&, |
| GrAA, |
| const SkMatrix& viewMatrix, |
| const SkRRect& rrect, |
| const GrStyle& style); |
| |
| /** |
| * Use a fast method to render the ambient and spot shadows for a path. |
| * Will return false if not possible for the given path. |
| * |
| * @param viewMatrix transformation matrix |
| * @param path the path to shadow |
| * @param rec parameters for shadow rendering |
| */ |
| bool drawFastShadow(const GrClip&, |
| const SkMatrix& viewMatrix, |
| const SkPath& path, |
| const SkDrawShadowRec& rec); |
| |
| /** |
| * Shortcut for filling a SkPath consisting of nested rrects using a paint. The result is |
| * undefined if outer does not contain inner. |
| * |
| * @param paint describes how to color pixels. |
| * @param GrAA Controls whether rrects edges are antialiased |
| * @param viewMatrix transformation matrix |
| * @param outer the outer roundrect |
| * @param inner the inner roundrect |
| */ |
| void drawDRRect(const GrClip&, |
| GrPaint&&, |
| GrAA, |
| const SkMatrix& viewMatrix, |
| const SkRRect& outer, |
| const SkRRect& inner); |
| |
| /** |
| * Draws a path. |
| * |
| * @param paint describes how to color pixels. |
| * @param GrAA Controls whether the path is antialiased. |
| * @param viewMatrix transformation matrix |
| * @param path the path to draw |
| * @param style style to apply to the path. |
| */ |
| void drawPath(const GrClip&, |
| GrPaint&&, |
| GrAA, |
| const SkMatrix& viewMatrix, |
| const SkPath&, |
| const GrStyle&); |
| |
| /** |
| * Draws a shape. |
| * |
| * @param paint describes how to color pixels. |
| * @param GrAA Controls whether the path is antialiased. |
| * @param viewMatrix transformation matrix |
| * @param shape the shape to draw |
| */ |
| void drawShape(const GrClip&, |
| GrPaint&&, |
| GrAA, |
| const SkMatrix& viewMatrix, |
| const GrShape&); |
| |
| |
| /** |
| * Draws vertices with a paint. |
| * |
| * @param paint describes how to color pixels. |
| * @param viewMatrix transformation matrix |
| * @param vertices specifies the mesh to draw. |
| * @param bones bone deformation matrices. |
| * @param boneCount number of bone matrices. |
| * @param overridePrimType primitive type to draw. If NULL, derive prim type from vertices. |
| */ |
| void drawVertices(const GrClip&, |
| GrPaint&& paint, |
| const SkMatrix& viewMatrix, |
| sk_sp<SkVertices> vertices, |
| const SkVertices::Bone bones[], |
| int boneCount, |
| GrPrimitiveType* overridePrimType = nullptr); |
| |
| /** |
| * Draws textured sprites from an atlas with a paint. This currently does not support AA for the |
| * sprite rectangle edges. |
| * |
| * @param paint describes how to color pixels. |
| * @param viewMatrix transformation matrix |
| * @param spriteCount number of sprites. |
| * @param xform array of compressed transformation data, required. |
| * @param texRect array of texture rectangles used to access the paint. |
| * @param colors optional array of per-sprite colors, supercedes |
| * the paint's color field. |
| */ |
| void drawAtlas(const GrClip&, |
| GrPaint&& paint, |
| const SkMatrix& viewMatrix, |
| int spriteCount, |
| const SkRSXform xform[], |
| const SkRect texRect[], |
| const SkColor colors[]); |
| |
| /** |
| * Draws a region. |
| * |
| * @param paint describes how to color pixels |
| * @param viewMatrix transformation matrix |
| * @param aa should the rects of the region be antialiased. |
| * @param region the region to be drawn |
| * @param style style to apply to the region |
| */ |
| void drawRegion(const GrClip&, |
| GrPaint&& paint, |
| GrAA aa, |
| const SkMatrix& viewMatrix, |
| const SkRegion& region, |
| const GrStyle& style, |
| const GrUserStencilSettings* ss = nullptr); |
| |
| /** |
| * Draws an oval. |
| * |
| * @param paint describes how to color pixels. |
| * @param GrAA Controls whether the oval is antialiased. |
| * @param viewMatrix transformation matrix |
| * @param oval the bounding rect of the oval. |
| * @param style style to apply to the oval. Currently path effects are not allowed. |
| */ |
| void drawOval(const GrClip&, |
| GrPaint&& paint, |
| GrAA, |
| const SkMatrix& viewMatrix, |
| const SkRect& oval, |
| const GrStyle& style); |
| /** |
| * Draws a partial arc of an oval. |
| * |
| * @param paint describes how to color pixels. |
| * @param GrGrAA Controls whether the arc is antialiased. |
| * @param viewMatrix transformation matrix. |
| * @param oval the bounding rect of the oval. |
| * @param startAngle starting angle in degrees. |
| * @param sweepAngle angle to sweep in degrees. Must be in (-360, 360) |
| * @param useCenter true means that the implied path begins at the oval center, connects as |
| * a line to the point indicated by the start contains the arc indicated by |
| * the sweep angle. If false the line beginning at the center point is |
| * omitted. |
| * @param style style to apply to the oval. |
| */ |
| void drawArc(const GrClip&, |
| GrPaint&& paint, |
| GrAA, |
| const SkMatrix& viewMatrix, |
| const SkRect& oval, |
| SkScalar startAngle, |
| SkScalar sweepAngle, |
| bool useCenter, |
| const GrStyle& style); |
| |
| /** |
| * Draw the image as a set of rects, specified by |iter|. |
| */ |
| void drawImageLattice(const GrClip&, |
| GrPaint&&, |
| const SkMatrix& viewMatrix, |
| sk_sp<GrTextureProxy>, |
| sk_sp<GrColorSpaceXform>, |
| GrSamplerState::Filter, |
| std::unique_ptr<SkLatticeIter>, |
| const SkRect& dst); |
| |
| /** |
| * Adds the necessary signal and wait semaphores and adds the passed in SkDrawable to the |
| * command stream. |
| */ |
| void drawDrawable(std::unique_ptr<SkDrawable::GpuDrawHandler>, const SkRect& bounds); |
| |
| /** |
| * After this returns any pending surface IO will be issued to the backend 3D API and |
| * if the surface has MSAA it will be resolved. |
| */ |
| GrSemaphoresSubmitted prepareForExternalIO(int numSemaphores, |
| GrBackendSemaphore backendSemaphores[]); |
| |
| /** |
| * The next time this GrRenderTargetContext is flushed, the gpu will wait on the passed in |
| * semaphores before executing any commands. |
| */ |
| bool waitOnSemaphores(int numSemaphores, const GrBackendSemaphore* waitSemaphores); |
| |
| void insertEventMarker(const SkString&); |
| |
| GrFSAAType fsaaType() const { return fRenderTargetProxy->fsaaType(); } |
| const GrCaps* caps() const { return fContext->contextPriv().caps(); } |
| int width() const { return fRenderTargetProxy->width(); } |
| int height() const { return fRenderTargetProxy->height(); } |
| int numColorSamples() const { return fRenderTargetProxy->numColorSamples(); } |
| int numStencilSamples() const { return fRenderTargetProxy->numStencilSamples(); } |
| const SkSurfaceProps& surfaceProps() const { return fSurfaceProps; } |
| GrSurfaceOrigin origin() const { return fRenderTargetProxy->origin(); } |
| GrMipMapped mipMapped() const; |
| |
| bool wasAbandoned() const; |
| |
| void setNeedsStencil() { fRenderTargetProxy->setNeedsStencil(); } |
| |
| GrRenderTarget* accessRenderTarget() { |
| // TODO: usage of this entry point needs to be reduced and potentially eliminated |
| // since it ends the deferral of the GrRenderTarget's allocation |
| if (!fRenderTargetProxy->instantiate(fContext->contextPriv().resourceProvider())) { |
| return nullptr; |
| } |
| return fRenderTargetProxy->peekRenderTarget(); |
| } |
| |
| GrSurfaceProxy* asSurfaceProxy() override { return fRenderTargetProxy.get(); } |
| const GrSurfaceProxy* asSurfaceProxy() const override { return fRenderTargetProxy.get(); } |
| sk_sp<GrSurfaceProxy> asSurfaceProxyRef() override { return fRenderTargetProxy; } |
| |
| GrTextureProxy* asTextureProxy() override; |
| const GrTextureProxy* asTextureProxy() const override; |
| sk_sp<GrTextureProxy> asTextureProxyRef() override; |
| |
| GrRenderTargetProxy* asRenderTargetProxy() override { return fRenderTargetProxy.get(); } |
| sk_sp<GrRenderTargetProxy> asRenderTargetProxyRef() override { return fRenderTargetProxy; } |
| |
| GrRenderTargetContext* asRenderTargetContext() override { return this; } |
| |
| // Provides access to functions that aren't part of the public API. |
| GrRenderTargetContextPriv priv(); |
| const GrRenderTargetContextPriv priv() const; |
| |
| GrTextTarget* textTarget() { return fTextTarget.get(); } |
| |
| bool isWrapped_ForTesting() const; |
| |
| protected: |
| GrRenderTargetContext(GrContext*, GrDrawingManager*, sk_sp<GrRenderTargetProxy>, |
| sk_sp<SkColorSpace>, const SkSurfaceProps*, GrAuditTrail*, |
| GrSingleOwner*, bool managedOpList = true); |
| |
| SkDEBUGCODE(void validate() const override;) |
| |
| private: |
| class TextTarget; |
| |
| inline GrAAType chooseAAType(GrAA aa, GrAllowMixedSamples allowMixedSamples) { |
| return GrChooseAAType(aa, this->fsaaType(), allowMixedSamples, *this->caps()); |
| } |
| |
| friend class GrAtlasTextBlob; // for access to add[Mesh]DrawOp |
| friend class GrClipStackClip; // for access to getOpList |
| |
| friend class GrDrawingManager; // for ctor |
| friend class GrRenderTargetContextPriv; |
| |
| // All the path renderers currently make their own ops |
| friend class GrSoftwarePathRenderer; // for access to add[Mesh]DrawOp |
| friend class GrAAConvexPathRenderer; // for access to add[Mesh]DrawOp |
| friend class GrDashLinePathRenderer; // for access to add[Mesh]DrawOp |
| friend class GrAAHairLinePathRenderer; // for access to add[Mesh]DrawOp |
| friend class GrAALinearizingConvexPathRenderer; // for access to add[Mesh]DrawOp |
| friend class GrSmallPathRenderer; // for access to add[Mesh]DrawOp |
| friend class GrDefaultPathRenderer; // for access to add[Mesh]DrawOp |
| friend class GrStencilAndCoverPathRenderer; // for access to add[Mesh]DrawOp |
| friend class GrTessellatingPathRenderer; // for access to add[Mesh]DrawOp |
| friend class GrCCPerFlushResources; // for access to addDrawOp |
| friend class GrCoverageCountingPathRenderer; // for access to addDrawOp |
| // for a unit test |
| friend void test_draw_op(GrContext*, |
| GrRenderTargetContext*, |
| std::unique_ptr<GrFragmentProcessor>, |
| sk_sp<GrTextureProxy>); |
| |
| void internalClear(const GrFixedClip&, const SkPMColor4f&, CanClearFullscreen); |
| |
| // Only consumes the GrPaint if successful. |
| bool drawFilledDRRect(const GrClip& clip, |
| GrPaint&& paint, |
| GrAA, |
| const SkMatrix& viewMatrix, |
| const SkRRect& origOuter, |
| const SkRRect& origInner); |
| |
| // Only consumes the GrPaint if successful. |
| bool drawFilledRect(const GrClip& clip, |
| GrPaint&& paint, |
| GrAA, |
| const SkMatrix& viewMatrix, |
| const SkRect& rect, |
| const GrUserStencilSettings* ss); |
| |
| void drawShapeUsingPathRenderer(const GrClip&, GrPaint&&, GrAA, const SkMatrix&, |
| const GrShape&); |
| |
| // Allows caller of addDrawOp to know which op list an op will be added to. |
| using WillAddOpFn = void(GrOp*, uint32_t opListID); |
| // These perform processing specific to GrDrawOp-derived ops before recording them into an |
| // op list. Before adding the op to an op list the WillAddOpFn is called. Note that it |
| // will not be called in the event that the op is discarded. Moreover, the op may merge into |
| // another op after the function is called (either before addDrawOp returns or some time later). |
| void addDrawOp(const GrClip&, std::unique_ptr<GrDrawOp>, |
| const std::function<WillAddOpFn>& = std::function<WillAddOpFn>()); |
| |
| // Makes a copy of the proxy if it is necessary for the draw and places the texture that should |
| // be used by GrXferProcessor to access the destination color in 'result'. If the return |
| // value is false then a texture copy could not be made. |
| bool SK_WARN_UNUSED_RESULT setupDstProxy(GrRenderTargetProxy*, |
| const GrClip&, |
| const GrOp& op, |
| GrXferProcessor::DstProxy* result); |
| |
| GrRenderTargetOpList* getRTOpList(); |
| GrOpList* getOpList() override; |
| |
| std::unique_ptr<GrTextTarget> fTextTarget; |
| sk_sp<GrRenderTargetProxy> fRenderTargetProxy; |
| |
| // In MDB-mode the GrOpList can be closed by some other renderTargetContext that has picked |
| // it up. For this reason, the GrOpList should only ever be accessed via 'getOpList'. |
| sk_sp<GrRenderTargetOpList> fOpList; |
| |
| SkSurfaceProps fSurfaceProps; |
| bool fManagedOpList; |
| |
| typedef GrSurfaceContext INHERITED; |
| }; |
| |
| #endif |