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
|
/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrRenderTargetProxy_DEFINED
#define GrRenderTargetProxy_DEFINED
#include "GrSurfaceProxy.h"
#include "GrTypesPriv.h"
class GrResourceProvider;
class GrRenderTargetProxyPriv;
// This class delays the acquisition of RenderTargets until they are actually
// required
// Beware: the uniqueID of the RenderTargetProxy will usually be different than
// the uniqueID of the RenderTarget it represents!
class GrRenderTargetProxy : virtual public GrSurfaceProxy {
public:
GrRenderTargetProxy* asRenderTargetProxy() override { return this; }
const GrRenderTargetProxy* asRenderTargetProxy() const override { return this; }
// Actually instantiate the backing rendertarget, if necessary.
bool instantiate(GrResourceProvider*) override;
GrFSAAType fsaaType() const {
if (fSampleCnt <= 1) {
SkASSERT(!this->hasMixedSamples());
return GrFSAAType::kNone;
}
return this->hasMixedSamples() ? GrFSAAType::kMixedSamples : GrFSAAType::kUnifiedMSAA;
}
/*
* When instantiated does this proxy require a stencil buffer?
*/
void setNeedsStencil() { fNeedsStencil = true; }
bool needsStencil() const { return fNeedsStencil; }
/**
* Returns the number of samples/pixel in the stencil buffer (One if non-MSAA).
*/
int numStencilSamples() const { return fSampleCnt; }
/**
* Returns the number of samples/pixel in the color buffer (One if non-MSAA or mixed sampled).
*/
int numColorSamples() const {
return GrFSAAType::kMixedSamples == this->fsaaType() ? 1 : fSampleCnt;
}
int maxWindowRectangles(const GrCaps& caps) const;
// TODO: move this to a priv class!
bool refsWrappedObjects() const;
// Provides access to special purpose functions.
GrRenderTargetProxyPriv rtPriv();
const GrRenderTargetProxyPriv rtPriv() const;
protected:
friend class GrProxyProvider; // for ctors
friend class GrRenderTargetProxyPriv;
// Deferred version
GrRenderTargetProxy(const GrCaps&, const GrSurfaceDesc&, GrSurfaceOrigin, SkBackingFit,
SkBudgeted, GrInternalSurfaceFlags);
// Lazy-callback version
// There are two main use cases for lazily-instantiated proxies:
// basic knowledge - width, height, config, samples, origin are known
// minimal knowledge - only config is known.
//
// The basic knowledge version is used for DDL where we know the type of proxy we are going to
// use, but we don't have access to the GPU yet to instantiate it.
//
// The minimal knowledge version is used for CCPR where we are generating an atlas but we do not
// know the final size until flush time.
GrRenderTargetProxy(LazyInstantiateCallback&&, LazyInstantiationType lazyType,
const GrSurfaceDesc&, GrSurfaceOrigin, SkBackingFit, SkBudgeted,
GrInternalSurfaceFlags);
// Wrapped version
GrRenderTargetProxy(sk_sp<GrSurface>, GrSurfaceOrigin);
sk_sp<GrSurface> createSurface(GrResourceProvider*) const override;
private:
void setHasMixedSamples() {
fSurfaceFlags |= GrInternalSurfaceFlags::kMixedSampled;
}
bool hasMixedSamples() const { return fSurfaceFlags & GrInternalSurfaceFlags::kMixedSampled; }
void setSupportsWindowRects() {
fSurfaceFlags |= GrInternalSurfaceFlags::kWindowRectsSupport;
}
bool supportsWindowRects() const {
return fSurfaceFlags & GrInternalSurfaceFlags::kWindowRectsSupport;
}
void setGLRTFBOIDIs0() {
fSurfaceFlags |= GrInternalSurfaceFlags::kGLRTFBOIDIs0;
}
bool glRTFBOIDIs0() const {
return fSurfaceFlags & GrInternalSurfaceFlags::kGLRTFBOIDIs0;
}
size_t onUninstantiatedGpuMemorySize() const override;
SkDEBUGCODE(void onValidateSurface(const GrSurface*) override;)
int fSampleCnt;
bool fNeedsStencil;
// For wrapped render targets the actual GrRenderTarget is stored in the GrIORefProxy class.
// For deferred proxies that pointer is filled in when we need to instantiate the
// deferred resource.
typedef GrSurfaceProxy INHERITED;
};
#endif
|
