c7635fa374
This is split out of https://codereview.chromium.org/2215323003/ (Start using RenderTargetProxy (omnibus)) GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3841 CQ_INCLUDE_TRYBOTS=master.client.skia.android:Test-Android-Clang-Nexus5-GPU-Adreno330-arm-Debug-GN_Android-Trybot Change-Id: I1a47f19ed1ac0c249e6ccac8db74095d7f456db4 Reviewed-on: https://skia-review.googlesource.com/3841 Commit-Queue: Robert Phillips <robertphillips@google.com> Reviewed-by: Brian Salomon <bsalomon@google.com>
451 lines
18 KiB
C++
451 lines
18 KiB
C++
/*
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* Copyright 2015 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef GrRenderTargetContext_DEFINED
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#define GrRenderTargetContext_DEFINED
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#include "GrColor.h"
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#include "GrContext.h"
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#include "GrPaint.h"
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#include "GrRenderTarget.h"
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#include "SkRefCnt.h"
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#include "SkRegion.h"
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#include "SkSurfaceProps.h"
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#include "../private/GrInstancedPipelineInfo.h"
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#include "../private/GrRenderTargetProxy.h"
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#include "../private/GrSingleOwner.h"
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class GrAuditTrail;
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class GrClip;
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class GrDrawBatch;
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class GrRenderTargetContextPriv;
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class GrDrawPathBatchBase;
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class GrDrawingManager;
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class GrFixedClip;
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class GrPaint;
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class GrPathProcessor;
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class GrPipelineBuilder;
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class GrRenderTarget;
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class GrRenderTargetOpList;
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class GrStyle;
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class GrSurface;
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struct GrUserStencilSettings;
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class SkDrawFilter;
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struct SkIPoint;
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struct SkIRect;
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class SkLatticeIter;
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class SkMatrix;
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class SkPaint;
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class SkPath;
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struct SkPoint;
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struct SkRect;
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class SkRRect;
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struct SkRSXform;
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class SkTextBlob;
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/*
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* A helper object to orchestrate draws
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*/
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class SK_API GrRenderTargetContext : public SkRefCnt {
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public:
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~GrRenderTargetContext() override;
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bool copySurface(GrSurface* src, const SkIRect& srcRect, const SkIPoint& dstPoint);
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// TODO: it is odd that we need both the SkPaint in the following 3 methods.
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// We should extract the text parameters from SkPaint and pass them separately
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// akin to GrStyle (GrTextInfo?)
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virtual void drawText(const GrClip&, const GrPaint&, const SkPaint&,
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const SkMatrix& viewMatrix, const char text[], size_t byteLength,
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SkScalar x, SkScalar y, const SkIRect& clipBounds);
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virtual void drawPosText(const GrClip&, const GrPaint&, const SkPaint&,
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const SkMatrix& viewMatrix, const char text[], size_t byteLength,
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const SkScalar pos[], int scalarsPerPosition,
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const SkPoint& offset, const SkIRect& clipBounds);
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virtual void drawTextBlob(const GrClip&, const SkPaint&,
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const SkMatrix& viewMatrix, const SkTextBlob*,
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SkScalar x, SkScalar y,
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SkDrawFilter*, const SkIRect& clipBounds);
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/**
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* Provides a perfomance hint that the render target's contents are allowed
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* to become undefined.
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*/
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void discard();
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/**
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* Clear the entire or rect of the render target, ignoring any clips.
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* @param rect the rect to clear or the whole thing if rect is NULL.
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* @param color the color to clear to.
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* @param canIgnoreRect allows partial clears to be converted to whole
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* clears on platforms for which that is cheap
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*/
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void clear(const SkIRect* rect, GrColor color, bool canIgnoreRect);
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/**
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* Draw everywhere (respecting the clip) with the paint.
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*/
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void drawPaint(const GrClip&, const GrPaint&, const SkMatrix& viewMatrix);
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/**
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* Draw the rect using a paint.
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* @param paint describes how to color pixels.
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* @param viewMatrix transformation matrix
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* @param style The style to apply. Null means fill. Currently path effects are not
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* allowed.
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* The rects coords are used to access the paint (through texture matrix)
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*/
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void drawRect(const GrClip&,
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const GrPaint& paint,
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const SkMatrix& viewMatrix,
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const SkRect&,
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const GrStyle* style = nullptr);
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/**
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* Maps a rectangle of shader coordinates to a rectangle and fills that rectangle.
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*
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* @param paint describes how to color pixels.
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* @param viewMatrix transformation matrix which applies to rectToDraw
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* @param rectToDraw the rectangle to draw
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* @param localRect the rectangle of shader coordinates applied to rectToDraw
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*/
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void fillRectToRect(const GrClip&,
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const GrPaint& paint,
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const SkMatrix& viewMatrix,
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const SkRect& rectToDraw,
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const SkRect& localRect);
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/**
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* Fills a rect with a paint and a localMatrix.
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*/
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void fillRectWithLocalMatrix(const GrClip& clip,
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const GrPaint& paint,
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const SkMatrix& viewMatrix,
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const SkRect& rect,
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const SkMatrix& localMatrix);
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/**
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* Draw a roundrect using a paint.
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*
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* @param paint describes how to color pixels.
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* @param viewMatrix transformation matrix
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* @param rrect the roundrect to draw
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* @param style style to apply to the rrect. Currently path effects are not allowed.
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*/
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void drawRRect(const GrClip&,
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const GrPaint&,
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const SkMatrix& viewMatrix,
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const SkRRect& rrect,
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const GrStyle& style);
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/**
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* Shortcut for drawing an SkPath consisting of nested rrects using a paint.
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* Does not support stroking. The result is undefined if outer does not contain
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* inner.
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*
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* @param paint describes how to color pixels.
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* @param viewMatrix transformation matrix
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* @param outer the outer roundrect
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* @param inner the inner roundrect
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*/
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void drawDRRect(const GrClip&,
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const GrPaint&,
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const SkMatrix& viewMatrix,
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const SkRRect& outer,
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const SkRRect& inner);
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/**
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* Draws a path.
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*
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* @param paint describes how to color pixels.
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* @param viewMatrix transformation matrix
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* @param path the path to draw
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* @param style style to apply to the path.
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*/
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void drawPath(const GrClip&,
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const GrPaint&,
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const SkMatrix& viewMatrix,
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const SkPath&,
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const GrStyle& style);
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/**
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* Draws vertices with a paint.
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*
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* @param paint describes how to color pixels.
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* @param viewMatrix transformation matrix
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* @param primitiveType primitives type to draw.
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* @param vertexCount number of vertices.
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* @param positions array of vertex positions, required.
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* @param texCoords optional array of texture coordinates used
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* to access the paint.
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* @param colors optional array of per-vertex colors, supercedes
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* the paint's color field.
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* @param indices optional array of indices. If NULL vertices
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* are drawn non-indexed.
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* @param indexCount if indices is non-null then this is the
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* number of indices.
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*/
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void drawVertices(const GrClip&,
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const GrPaint& paint,
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const SkMatrix& viewMatrix,
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GrPrimitiveType primitiveType,
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int vertexCount,
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const SkPoint positions[],
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const SkPoint texs[],
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const GrColor colors[],
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const uint16_t indices[],
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int indexCount);
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/**
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* Draws textured sprites from an atlas with a paint.
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*
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* @param paint describes how to color pixels.
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* @param viewMatrix transformation matrix
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* @param spriteCount number of sprites.
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* @param xform array of compressed transformation data, required.
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* @param texRect array of texture rectangles used to access the paint.
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* @param colors optional array of per-sprite colors, supercedes
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* the paint's color field.
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*/
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void drawAtlas(const GrClip&,
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const GrPaint& paint,
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const SkMatrix& viewMatrix,
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int spriteCount,
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const SkRSXform xform[],
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const SkRect texRect[],
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const SkColor colors[]);
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/**
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* Draws a region.
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*
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* @param paint describes how to color pixels
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* @param viewMatrix transformation matrix
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* @param region the region to be drawn
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* @param style style to apply to the region
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*/
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void drawRegion(const GrClip&,
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const GrPaint& paint,
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const SkMatrix& viewMatrix,
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const SkRegion& region,
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const GrStyle& style);
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/**
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* Draws an oval.
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*
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* @param paint describes how to color pixels.
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* @param viewMatrix transformation matrix
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* @param oval the bounding rect of the oval.
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* @param style style to apply to the oval. Currently path effects are not allowed.
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*/
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void drawOval(const GrClip&,
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const GrPaint& paint,
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const SkMatrix& viewMatrix,
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const SkRect& oval,
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const GrStyle& style);
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/**
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* Draws a partial arc of an oval.
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*
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* @param paint describes how to color pixels.
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* @param viewMatrix transformation matrix.
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* @param oval the bounding rect of the oval.
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* @param startAngle starting angle in degrees.
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* @param sweepAngle angle to sweep in degrees. Must be in (-360, 360)
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* @param useCenter true means that the implied path begins at the oval center, connects as a
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* line to the point indicated by the start contains the arc indicated by
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* the sweep angle. If false the line beginning at the center point is
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* omitted.
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* @param style style to apply to the oval.
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*/
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void drawArc(const GrClip&,
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const GrPaint& paint,
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const SkMatrix& viewMatrix,
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const SkRect& oval,
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SkScalar startAngle,
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SkScalar sweepAngle,
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bool useCenter,
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const GrStyle& style);
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/**
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* Draw the image as a set of rects, specified by |iter|.
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*/
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void drawImageLattice(const GrClip&,
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const GrPaint& paint,
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const SkMatrix& viewMatrix,
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int imageWidth,
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int imageHeight,
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std::unique_ptr<SkLatticeIter> iter,
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const SkRect& dst);
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/**
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* After this returns any pending surface IO will be issued to the backend 3D API and
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* if the surface has MSAA it will be resolved.
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*/
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void prepareForExternalIO();
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/**
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* Reads a rectangle of pixels from the render target context.
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* @param dstInfo image info for the destination
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* @param dstBuffer destination pixels for the read
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* @param dstRowBytes bytes in a row of 'dstBuffer'
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* @param x x offset w/in the render target context from which to read
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* @param y y offset w/in the render target context from which to read
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*
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* @return true if the read succeeded, false if not. The read can fail because of an
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* unsupported pixel config.
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*/
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bool readPixels(const SkImageInfo& dstInfo, void* dstBuffer, size_t dstRowBytes, int x, int y);
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/**
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* Writes a rectangle of pixels [srcInfo, srcBuffer, srcRowbytes] into the
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* renderTargetContext at the specified position.
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* @param srcInfo image info for the source pixels
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* @param srcBuffer source for the write
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* @param srcRowBytes bytes in a row of 'srcBuffer'
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* @param x x offset w/in the render target context at which to write
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* @param y y offset w/in the render target context at which to write
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*
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* @return true if the write succeeded, false if not. The write can fail because of an
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* unsupported pixel config.
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*/
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bool writePixels(const SkImageInfo& srcInfo, const void* srcBuffer, size_t srcRowBytes,
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int x, int y);
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bool isStencilBufferMultisampled() const {
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return fRenderTargetProxy->isStencilBufferMultisampled();
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}
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bool isUnifiedMultisampled() const { return fRenderTargetProxy->isUnifiedMultisampled(); }
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bool hasMixedSamples() const { return fRenderTargetProxy->isMixedSampled(); }
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bool mustUseHWAA(const GrPaint& paint) const {
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return paint.isAntiAlias() && fRenderTargetProxy->isUnifiedMultisampled();
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}
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const GrCaps* caps() const { return fContext->caps(); }
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const GrSurfaceDesc& desc() const { return fRenderTargetProxy->desc(); }
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int width() const { return fRenderTargetProxy->width(); }
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int height() const { return fRenderTargetProxy->height(); }
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GrPixelConfig config() const { return fRenderTargetProxy->config(); }
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int numColorSamples() const { return fRenderTargetProxy->numColorSamples(); }
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bool isGammaCorrect() const { return SkToBool(fColorSpace.get()); }
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SkSourceGammaTreatment sourceGammaTreatment() const {
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return this->isGammaCorrect() ? SkSourceGammaTreatment::kRespect
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: SkSourceGammaTreatment::kIgnore;
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}
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const SkSurfaceProps& surfaceProps() const { return fSurfaceProps; }
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SkColorSpace* getColorSpace() const { return fColorSpace.get(); }
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GrColorSpaceXform* getColorXformFromSRGB() const { return fColorXformFromSRGB.get(); }
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GrSurfaceOrigin origin() const { return fRenderTargetProxy->origin(); }
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bool wasAbandoned() const;
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GrRenderTarget* accessRenderTarget() {
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// TODO: usage of this entry point needs to be reduced and potentially eliminated
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// since it ends the deferral of the GrRenderTarget's allocation
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return fRenderTargetProxy->instantiate(fContext->textureProvider());
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}
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sk_sp<GrTexture> asTexture() {
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// TODO: usage of this entry point needs to be reduced and potentially eliminated
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// since it ends the deferral of the GrRenderTarget's allocation
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// It's usage should migrate to the soon-to-be-added asDeferredTexture which
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// returns a GrTextureProxy
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return sk_ref_sp(this->accessRenderTarget()->asTexture());
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}
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// Provides access to functions that aren't part of the public API.
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GrRenderTargetContextPriv priv();
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const GrRenderTargetContextPriv priv() const;
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GrAuditTrail* auditTrail() { return fAuditTrail; }
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protected:
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GrRenderTargetContext(GrContext*, GrDrawingManager*, sk_sp<GrRenderTargetProxy>,
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sk_sp<SkColorSpace>, const SkSurfaceProps* surfaceProps, GrAuditTrail*,
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GrSingleOwner*);
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GrDrawingManager* drawingManager() { return fDrawingManager; }
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SkDEBUGCODE(GrSingleOwner* singleOwner() { return fSingleOwner; })
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SkDEBUGCODE(void validate() const;)
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private:
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friend class GrAtlasTextBlob; // for access to drawBatch
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friend class GrStencilAndCoverTextContext; // for access to drawBatch
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friend class GrDrawingManager; // for ctor
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friend class GrRenderTargetContextPriv;
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friend class GrTestTarget; // for access to getOpList
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friend class GrSWMaskHelper; // for access to drawBatch
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// All the path renderers currently make their own batches
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friend class GrSoftwarePathRenderer; // for access to drawBatch
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friend class GrAAConvexPathRenderer; // for access to drawBatch
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friend class GrDashLinePathRenderer; // for access to drawBatch
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friend class GrAAHairLinePathRenderer; // for access to drawBatch
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friend class GrAALinearizingConvexPathRenderer; // for access to drawBatch
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friend class GrAADistanceFieldPathRenderer; // for access to drawBatch
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friend class GrDefaultPathRenderer; // for access to drawBatch
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friend class GrPLSPathRenderer; // for access to drawBatch
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friend class GrMSAAPathRenderer; // for access to drawBatch
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friend class GrStencilAndCoverPathRenderer; // for access to drawBatch
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friend class GrTessellatingPathRenderer; // for access to drawBatch
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void internalClear(const GrFixedClip&, const GrColor, bool canIgnoreClip);
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bool drawFilledDRRect(const GrClip& clip,
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const GrPaint& paint,
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const SkMatrix& viewMatrix,
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const SkRRect& origOuter,
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const SkRRect& origInner);
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bool drawFilledRect(const GrClip& clip,
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const GrPaint& paint,
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const SkMatrix& viewMatrix,
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const SkRect& rect,
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const GrUserStencilSettings* ss);
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void drawNonAAFilledRect(const GrClip&,
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const GrPaint&,
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const SkMatrix& viewMatrix,
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const SkRect& rect,
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const SkRect* localRect,
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const SkMatrix* localMatrix,
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const GrUserStencilSettings* ss,
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bool useHWAA);
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void internalDrawPath(const GrClip& clip,
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const GrPaint& paint,
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const SkMatrix& viewMatrix,
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const SkPath& path,
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const GrStyle& style);
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// This entry point allows the GrTextContext-derived classes to add their batches to
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// the GrOpList.
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void drawBatch(const GrPipelineBuilder& pipelineBuilder, const GrClip&, GrDrawBatch* batch);
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GrRenderTargetOpList* getOpList();
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GrDrawingManager* fDrawingManager;
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sk_sp<GrRenderTargetProxy> fRenderTargetProxy;
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// In MDB-mode the GrOpList can be closed by some other renderTargetContext that has picked
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// it up. For this reason, the GrOpList should only ever be accessed via 'getOpList'.
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GrRenderTargetOpList* fOpList;
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GrContext* fContext;
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GrInstancedPipelineInfo fInstancedPipelineInfo;
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sk_sp<SkColorSpace> fColorSpace;
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sk_sp<GrColorSpaceXform> fColorXformFromSRGB;
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SkSurfaceProps fSurfaceProps;
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GrAuditTrail* fAuditTrail;
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// In debug builds we guard against improper thread handling
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SkDEBUGCODE(mutable GrSingleOwner* fSingleOwner;)
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};
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#endif
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