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 "GrRenderTarget.h"
10
11 #include "GrContext.h"
12 #include "GrContextPriv.h"
13 #include "GrRenderTargetContext.h"
14 #include "GrGpu.h"
15 #include "GrRenderTargetOpList.h"
16 #include "GrRenderTargetPriv.h"
17 #include "GrStencilAttachment.h"
18 #include "GrStencilSettings.h"
19
GrRenderTarget(GrGpu * gpu,const GrSurfaceDesc & desc,GrRenderTargetFlags flags,GrStencilAttachment * stencil)20 GrRenderTarget::GrRenderTarget(GrGpu* gpu, const GrSurfaceDesc& desc,
21 GrRenderTargetFlags flags,
22 GrStencilAttachment* stencil)
23 : INHERITED(gpu, desc)
24 , fSampleCnt(desc.fSampleCnt)
25 , fStencilAttachment(stencil)
26 , fMultisampleSpecsID(0)
27 , fFlags(flags) {
28 SkASSERT(desc.fFlags & kRenderTarget_GrSurfaceFlag);
29 SkASSERT(!(fFlags & GrRenderTargetFlags::kMixedSampled) || fSampleCnt > 0);
30 SkASSERT(!(fFlags & GrRenderTargetFlags::kWindowRectsSupport) ||
31 gpu->caps()->maxWindowRectangles() > 0);
32 fResolveRect.setLargestInverted();
33 }
34
flagAsNeedingResolve(const SkIRect * rect)35 void GrRenderTarget::flagAsNeedingResolve(const SkIRect* rect) {
36 if (kCanResolve_ResolveType == getResolveType()) {
37 if (rect) {
38 fResolveRect.join(*rect);
39 if (!fResolveRect.intersect(0, 0, this->width(), this->height())) {
40 fResolveRect.setEmpty();
41 }
42 } else {
43 fResolveRect.setLTRB(0, 0, this->width(), this->height());
44 }
45 }
46 }
47
overrideResolveRect(const SkIRect rect)48 void GrRenderTarget::overrideResolveRect(const SkIRect rect) {
49 fResolveRect = rect;
50 if (fResolveRect.isEmpty()) {
51 fResolveRect.setLargestInverted();
52 } else {
53 if (!fResolveRect.intersect(0, 0, this->width(), this->height())) {
54 fResolveRect.setLargestInverted();
55 }
56 }
57 }
58
onRelease()59 void GrRenderTarget::onRelease() {
60 SkSafeSetNull(fStencilAttachment);
61
62 INHERITED::onRelease();
63 }
64
onAbandon()65 void GrRenderTarget::onAbandon() {
66 SkSafeSetNull(fStencilAttachment);
67
68 INHERITED::onAbandon();
69 }
70
71 ///////////////////////////////////////////////////////////////////////////////
72
attachStencilAttachment(GrStencilAttachment * stencil)73 bool GrRenderTargetPriv::attachStencilAttachment(GrStencilAttachment* stencil) {
74 if (!stencil && !fRenderTarget->fStencilAttachment) {
75 // No need to do any work since we currently don't have a stencil attachment and
76 // we're not actually adding one.
77 return true;
78 }
79 fRenderTarget->fStencilAttachment = stencil;
80 if (!fRenderTarget->completeStencilAttachment()) {
81 SkSafeSetNull(fRenderTarget->fStencilAttachment);
82 return false;
83 }
84 return true;
85 }
86
numStencilBits() const87 int GrRenderTargetPriv::numStencilBits() const {
88 SkASSERT(this->getStencilAttachment());
89 return this->getStencilAttachment()->bits();
90 }
91
92 const GrGpu::MultisampleSpecs&
getMultisampleSpecs(const GrPipeline & pipeline) const93 GrRenderTargetPriv::getMultisampleSpecs(const GrPipeline& pipeline) const {
94 SkASSERT(fRenderTarget == pipeline.getRenderTarget()); // TODO: remove RT from pipeline.
95 GrGpu* gpu = fRenderTarget->getGpu();
96 if (auto id = fRenderTarget->fMultisampleSpecsID) {
97 SkASSERT(gpu->queryMultisampleSpecs(pipeline).fUniqueID == id);
98 return gpu->getMultisampleSpecs(id);
99 }
100 const GrGpu::MultisampleSpecs& specs = gpu->queryMultisampleSpecs(pipeline);
101 fRenderTarget->fMultisampleSpecsID = specs.fUniqueID;
102 return specs;
103 }
104
105