1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrGLRenderTarget.h"
#include "GrContext.h"
#include "GrGLGpu.h"
#include "GrGLUtil.h"
#include "GrGpuResourcePriv.h"
#include "GrRenderTargetPriv.h"
#include "SkTraceMemoryDump.h"
#define GPUGL static_cast<GrGLGpu*>(this->getGpu())
#define GL_CALL(X) GR_GL_CALL(GPUGL->glInterface(), X)
// Because this class is virtually derived from GrSurface we must explicitly call its constructor.
// Constructor for wrapped render targets.
GrGLRenderTarget::GrGLRenderTarget(GrGLGpu* gpu,
const GrSurfaceDesc& desc,
const IDDesc& idDesc,
GrGLStencilAttachment* stencil)
: GrSurface(gpu, desc)
, INHERITED(gpu, desc, ComputeFlags(gpu->glCaps(), idDesc), stencil) {
this->init(desc, idDesc);
this->registerWithCacheWrapped();
}
GrGLRenderTarget::GrGLRenderTarget(GrGLGpu* gpu, const GrSurfaceDesc& desc,
const IDDesc& idDesc)
: GrSurface(gpu, desc)
, INHERITED(gpu, desc, ComputeFlags(gpu->glCaps(), idDesc)) {
this->init(desc, idDesc);
}
inline GrRenderTargetFlags GrGLRenderTarget::ComputeFlags(const GrGLCaps& glCaps,
const IDDesc& idDesc) {
GrRenderTargetFlags flags = GrRenderTargetFlags::kNone;
if (idDesc.fIsMixedSampled) {
SkASSERT(glCaps.usesMixedSamples() && idDesc.fRTFBOID); // FBO 0 can't be mixed sampled.
flags |= GrRenderTargetFlags::kMixedSampled;
}
if (glCaps.maxWindowRectangles() > 0 && idDesc.fRTFBOID) {
flags |= GrRenderTargetFlags::kWindowRectsSupport;
}
return flags;
}
void GrGLRenderTarget::init(const GrSurfaceDesc& desc, const IDDesc& idDesc) {
fRTFBOID = idDesc.fRTFBOID;
fTexFBOID = idDesc.fTexFBOID;
fMSColorRenderbufferID = idDesc.fMSColorRenderbufferID;
fRTFBOOwnership = idDesc.fRTFBOOwnership;
fViewport.fLeft = 0;
fViewport.fBottom = 0;
fViewport.fWidth = desc.fWidth;
fViewport.fHeight = desc.fHeight;
fNumSamplesOwnedPerPixel = this->totalSamples();
}
sk_sp<GrGLRenderTarget> GrGLRenderTarget::MakeWrapped(GrGLGpu* gpu,
const GrSurfaceDesc& desc,
const IDDesc& idDesc,
int stencilBits) {
GrGLStencilAttachment* sb = nullptr;
if (stencilBits) {
GrGLStencilAttachment::IDDesc sbDesc;
GrGLStencilAttachment::Format format;
format.fInternalFormat = GrGLStencilAttachment::kUnknownInternalFormat;
format.fPacked = false;
format.fStencilBits = stencilBits;
format.fTotalBits = stencilBits;
// Ownership of sb is passed to the GrRenderTarget so doesn't need to be deleted
sb = new GrGLStencilAttachment(gpu, sbDesc, desc.fWidth, desc.fHeight,
desc.fSampleCnt, format);
}
return sk_sp<GrGLRenderTarget>(new GrGLRenderTarget(gpu, desc, idDesc, sb));
}
size_t GrGLRenderTarget::onGpuMemorySize() const {
return GrSurface::ComputeSize(this->config(), this->width(), this->height(),
fNumSamplesOwnedPerPixel, false);
}
bool GrGLRenderTarget::completeStencilAttachment() {
GrGLGpu* gpu = this->getGLGpu();
const GrGLInterface* interface = gpu->glInterface();
GrStencilAttachment* stencil = this->renderTargetPriv().getStencilAttachment();
if (nullptr == stencil) {
GR_GL_CALL(interface, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_STENCIL_ATTACHMENT,
GR_GL_RENDERBUFFER, 0));
GR_GL_CALL(interface, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_DEPTH_ATTACHMENT,
GR_GL_RENDERBUFFER, 0));
#ifdef SK_DEBUG
if (kChromium_GrGLDriver != gpu->glContext().driver()) {
// This check can cause problems in Chromium if the context has been asynchronously
// abandoned (see skbug.com/5200)
GrGLenum status;
GR_GL_CALL_RET(interface, status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
SkASSERT(GR_GL_FRAMEBUFFER_COMPLETE == status);
}
#endif
return true;
} else {
const GrGLStencilAttachment* glStencil = static_cast<const GrGLStencilAttachment*>(stencil);
GrGLuint rb = glStencil->renderbufferID();
gpu->invalidateBoundRenderTarget();
gpu->stats()->incRenderTargetBinds();
GR_GL_CALL(interface, BindFramebuffer(GR_GL_FRAMEBUFFER, this->renderFBOID()));
GR_GL_CALL(interface, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_STENCIL_ATTACHMENT,
GR_GL_RENDERBUFFER, rb));
if (glStencil->format().fPacked) {
GR_GL_CALL(interface, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_DEPTH_ATTACHMENT,
GR_GL_RENDERBUFFER, rb));
} else {
GR_GL_CALL(interface, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_DEPTH_ATTACHMENT,
GR_GL_RENDERBUFFER, 0));
}
#ifdef SK_DEBUG
if (kChromium_GrGLDriver != gpu->glContext().driver()) {
// This check can cause problems in Chromium if the context has been asynchronously
// abandoned (see skbug.com/5200)
GrGLenum status;
GR_GL_CALL_RET(interface, status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
SkASSERT(GR_GL_FRAMEBUFFER_COMPLETE == status);
}
#endif
return true;
}
}
void GrGLRenderTarget::onRelease() {
if (GrBackendObjectOwnership::kBorrowed != fRTFBOOwnership) {
if (fTexFBOID) {
GL_CALL(DeleteFramebuffers(1, &fTexFBOID));
}
if (fRTFBOID && fRTFBOID != fTexFBOID) {
GL_CALL(DeleteFramebuffers(1, &fRTFBOID));
}
if (fMSColorRenderbufferID) {
GL_CALL(DeleteRenderbuffers(1, &fMSColorRenderbufferID));
}
}
fRTFBOID = 0;
fTexFBOID = 0;
fMSColorRenderbufferID = 0;
INHERITED::onRelease();
}
void GrGLRenderTarget::onAbandon() {
fRTFBOID = 0;
fTexFBOID = 0;
fMSColorRenderbufferID = 0;
INHERITED::onAbandon();
}
GrGLGpu* GrGLRenderTarget::getGLGpu() const {
SkASSERT(!this->wasDestroyed());
return static_cast<GrGLGpu*>(this->getGpu());
}
bool GrGLRenderTarget::canAttemptStencilAttachment() const {
if (this->getGpu()->getContext()->caps()->avoidStencilBuffers()) {
return false;
}
// Only modify the FBO's attachments if we have created the FBO. Public APIs do not currently
// allow for borrowed FBO ownership, so we can safely assume that if an object is owned,
// Skia created it.
return this->fRTFBOOwnership == GrBackendObjectOwnership::kOwned;
}
void GrGLRenderTarget::dumpMemoryStatistics(SkTraceMemoryDump* traceMemoryDump) const {
// Don't log the backing texture's contribution to the memory size. This will be handled by the
// texture object.
// Log any renderbuffer's contribution to memory. We only do this if we own the renderbuffer
// (have a fMSColorRenderbufferID).
if (fMSColorRenderbufferID) {
size_t size = GrSurface::ComputeSize(this->config(), this->width(), this->height(),
this->msaaSamples(), false);
// Due to this resource having both a texture and a renderbuffer component, dump as
// skia/gpu_resources/resource_#/renderbuffer
SkString dumpName("skia/gpu_resources/resource_");
dumpName.appendU32(this->uniqueID().asUInt());
dumpName.append("/renderbuffer");
traceMemoryDump->dumpNumericValue(dumpName.c_str(), "size", "bytes", size);
if (this->isPurgeable()) {
traceMemoryDump->dumpNumericValue(dumpName.c_str(), "purgeable_size", "bytes", size);
}
SkString renderbuffer_id;
renderbuffer_id.appendU32(fMSColorRenderbufferID);
traceMemoryDump->setMemoryBacking(dumpName.c_str(), "gl_renderbuffer",
renderbuffer_id.c_str());
}
}
int GrGLRenderTarget::msaaSamples() const {
if (fTexFBOID == kUnresolvableFBOID || fTexFBOID != fRTFBOID) {
// If the render target's FBO is external (fTexFBOID == kUnresolvableFBOID), or if we own
// the render target's FBO (fTexFBOID == fRTFBOID) then we use the provided sample count.
return SkTMax(1, this->numStencilSamples());
}
// When fTexFBOID == fRTFBOID, we either are not using MSAA, or MSAA is auto resolving, so use
// 0 for the sample count.
return 0;
}
int GrGLRenderTarget::totalSamples() const {
int total_samples = this->msaaSamples();
if (fTexFBOID != kUnresolvableFBOID) {
// If we own the resolve buffer then that is one more sample per pixel.
total_samples += 1;
}
return total_samples;
}
|
