1 /*
2 * Copyright 2011 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8
9 #include "src/gpu/GrRenderTarget.h"
10
11 #include "src/core/SkRectPriv.h"
12 #include "src/gpu/GrAttachment.h"
13 #include "src/gpu/GrBackendUtils.h"
14 #include "src/gpu/GrGpu.h"
15 #include "src/gpu/GrStencilSettings.h"
16
GrRenderTarget(GrGpu * gpu,const SkISize & dimensions,int sampleCount,GrProtected isProtected,sk_sp<GrAttachment> stencil)17 GrRenderTarget::GrRenderTarget(GrGpu* gpu,
18 const SkISize& dimensions,
19 int sampleCount,
20 GrProtected isProtected,
21 sk_sp<GrAttachment> stencil)
22 : INHERITED(gpu, dimensions, isProtected)
23 , fSampleCnt(sampleCount) {
24 if (this->numSamples() > 1) {
25 fMSAAStencilAttachment = std::move(stencil);
26 } else {
27 fStencilAttachment = std::move(stencil);
28 }
29 }
30
31 GrRenderTarget::~GrRenderTarget() = default;
32
onRelease()33 void GrRenderTarget::onRelease() {
34 fStencilAttachment = nullptr;
35 fMSAAStencilAttachment = nullptr;
36
37 INHERITED::onRelease();
38 }
39
onAbandon()40 void GrRenderTarget::onAbandon() {
41 fStencilAttachment = nullptr;
42 fMSAAStencilAttachment = nullptr;
43
44 INHERITED::onAbandon();
45 }
46
attachStencilAttachment(sk_sp<GrAttachment> stencil,bool useMSAASurface)47 void GrRenderTarget::attachStencilAttachment(sk_sp<GrAttachment> stencil, bool useMSAASurface) {
48 auto stencilAttachment = (useMSAASurface) ? &GrRenderTarget::fMSAAStencilAttachment
49 : &GrRenderTarget::fStencilAttachment;
50 if (!stencil && !(this->*stencilAttachment)) {
51 // No need to do any work since we currently don't have a stencil attachment and
52 // we're not actually adding one.
53 return;
54 }
55
56 if (!this->completeStencilAttachment(stencil.get(), useMSAASurface)) {
57 return;
58 }
59
60 this->*stencilAttachment = std::move(stencil);
61 }
62
numStencilBits(bool useMSAASurface) const63 int GrRenderTarget::numStencilBits(bool useMSAASurface) const {
64 return GrBackendFormatStencilBits(this->getStencilAttachment(useMSAASurface)->backendFormat());
65 }
66