f9635999a4
Adds a flag to GrRenderTarget that indicates whether it can be used with window rectangles. Also attempts to clean up some of the mixed samples API. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2225303002 Review-Url: https://codereview.chromium.org/2225303002
50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
/*
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* Copyright 2016 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 GrGrInstancedPipelineInfo_DEFINED
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#define GrGrInstancedPipelineInfo_DEFINED
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#include "GrRenderTarget.h"
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/**
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* Provides info about the pipeline that GrInstancedRendering needs in order to select appropriate
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* drawing algorithms.
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*/
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struct GrInstancedPipelineInfo {
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GrInstancedPipelineInfo(const GrRenderTarget* rt)
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: fIsMultisampled(rt->isStencilBufferMultisampled()),
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fIsMixedSampled(rt->isMixedSampled()),
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fIsRenderingToFloat(GrPixelConfigIsFloatingPoint(rt->desc().fConfig)),
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fColorDisabled(false),
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fDrawingShapeToStencil(false),
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fCanDiscard(false) {
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}
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bool canUseCoverageAA() const {
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return !fIsMultisampled || (fIsMixedSampled && !fDrawingShapeToStencil);
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}
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bool fIsMultisampled : 1;
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bool fIsMixedSampled : 1;
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bool fIsRenderingToFloat : 1;
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bool fColorDisabled : 1;
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/**
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* Indicates that the instanced renderer should take extra precautions to ensure the shape gets
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* drawn correctly to the stencil buffer (e.g. no coverage AA). NOTE: this does not mean a
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* stencil test is or is not active.
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*/
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bool fDrawingShapeToStencil : 1;
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/**
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* Indicates that the instanced renderer can use processors with discard instructions. This
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* should not be set if the shader will use derivatives, automatic mipmap LOD, or other features
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* that depend on neighboring pixels. Some draws will fail to create if this is not set.
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*/
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bool fCanDiscard : 1;
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};
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#endif
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