1
2 /*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9
10 #include "GrRenderTarget.h"
11
12 #include "GrContext.h"
13 #include "GrDrawContext.h"
14 #include "GrDrawTarget.h"
15 #include "GrGpu.h"
16 #include "GrRenderTargetPriv.h"
17 #include "GrStencilAttachment.h"
18
~GrRenderTarget()19 GrRenderTarget::~GrRenderTarget() {
20 if (fLastDrawTarget) {
21 fLastDrawTarget->clearRT();
22 }
23 SkSafeUnref(fLastDrawTarget);
24 }
25
discard()26 void GrRenderTarget::discard() {
27 // go through context so that all necessary flushing occurs
28 GrContext* context = this->getContext();
29 if (!context) {
30 return;
31 }
32
33 SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(this));
34 if (!drawContext) {
35 return;
36 }
37
38 drawContext->discard();
39 }
40
flagAsNeedingResolve(const SkIRect * rect)41 void GrRenderTarget::flagAsNeedingResolve(const SkIRect* rect) {
42 if (kCanResolve_ResolveType == getResolveType()) {
43 if (rect) {
44 fResolveRect.join(*rect);
45 if (!fResolveRect.intersect(0, 0, this->width(), this->height())) {
46 fResolveRect.setEmpty();
47 }
48 } else {
49 fResolveRect.setLTRB(0, 0, this->width(), this->height());
50 }
51 }
52 }
53
overrideResolveRect(const SkIRect rect)54 void GrRenderTarget::overrideResolveRect(const SkIRect rect) {
55 fResolveRect = rect;
56 if (fResolveRect.isEmpty()) {
57 fResolveRect.setLargestInverted();
58 } else {
59 if (!fResolveRect.intersect(0, 0, this->width(), this->height())) {
60 fResolveRect.setLargestInverted();
61 }
62 }
63 }
64
onRelease()65 void GrRenderTarget::onRelease() {
66 SkSafeSetNull(fStencilAttachment);
67
68 INHERITED::onRelease();
69 }
70
onAbandon()71 void GrRenderTarget::onAbandon() {
72 SkSafeSetNull(fStencilAttachment);
73
74 // The contents of this renderTarget are gone/invalid. It isn't useful to point back
75 // the creating drawTarget.
76 this->setLastDrawTarget(nullptr);
77
78 INHERITED::onAbandon();
79 }
80
setLastDrawTarget(GrDrawTarget * dt)81 void GrRenderTarget::setLastDrawTarget(GrDrawTarget* dt) {
82 if (fLastDrawTarget) {
83 // The non-MDB world never closes so we can't check this condition
84 #ifdef ENABLE_MDB
85 SkASSERT(fLastDrawTarget->isClosed());
86 #endif
87 fLastDrawTarget->clearRT();
88 }
89
90 SkRefCnt_SafeAssign(fLastDrawTarget, dt);
91 }
92
93 ///////////////////////////////////////////////////////////////////////////////
94
attachStencilAttachment(GrStencilAttachment * stencil)95 bool GrRenderTargetPriv::attachStencilAttachment(GrStencilAttachment* stencil) {
96 if (!stencil && !fRenderTarget->fStencilAttachment) {
97 // No need to do any work since we currently don't have a stencil attachment and
98 // we're not acctually adding one.
99 return true;
100 }
101 fRenderTarget->fStencilAttachment = stencil;
102 if (!fRenderTarget->completeStencilAttachment()) {
103 SkSafeSetNull(fRenderTarget->fStencilAttachment);
104 return false;
105 }
106 return true;
107 }
108