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
|
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrGLTexture_DEFINED
#define GrGLTexture_DEFINED
#include "GrGpu.h"
#include "GrGLRenderTarget.h"
/**
* A ref counted tex id that deletes the texture in its destructor.
*/
class GrGLTexID : public GrRefCnt {
public:
SK_DECLARE_INST_COUNT(GrGLTexID)
GrGLTexID(const GrGLInterface* gl, GrGLuint texID, bool isWrapped)
: fGL(gl)
, fTexID(texID)
, fIsWrapped(isWrapped) {
}
virtual ~GrGLTexID() {
if (0 != fTexID && !fIsWrapped) {
GR_GL_CALL(fGL, DeleteTextures(1, &fTexID));
}
}
void abandon() { fTexID = 0; }
GrGLuint id() const { return fTexID; }
private:
const GrGLInterface* fGL;
GrGLuint fTexID;
bool fIsWrapped;
typedef GrRefCnt INHERITED;
};
////////////////////////////////////////////////////////////////////////////////
class GrGLTexture : public GrTexture {
public:
struct TexParams {
GrGLenum fFilter;
GrGLenum fWrapS;
GrGLenum fWrapT;
GrGLenum fSwizzleRGBA[4];
void invalidate() { memset(this, 0xff, sizeof(TexParams)); }
};
struct Desc : public GrTextureDesc {
GrGLuint fTextureID;
bool fIsWrapped;
};
// creates a texture that is also an RT
GrGLTexture(GrGpuGL* gpu,
const Desc& textureDesc,
const GrGLRenderTarget::Desc& rtDesc);
// creates a non-RT texture
GrGLTexture(GrGpuGL* gpu,
const Desc& textureDesc);
virtual ~GrGLTexture() { this->release(); }
virtual GrBackendObject getTextureHandle() const SK_OVERRIDE;
virtual void invalidateCachedState() SK_OVERRIDE { fTexParams.invalidate(); }
// these functions
const TexParams& getCachedTexParams(GrGpu::ResetTimestamp* timestamp) const {
*timestamp = fTexParamsTimestamp;
return fTexParams;
}
void setCachedTexParams(const TexParams& texParams,
GrGpu::ResetTimestamp timestamp) {
fTexParams = texParams;
fTexParamsTimestamp = timestamp;
}
GrGLuint textureID() const { return fTexIDObj->id(); }
protected:
// overrides of GrTexture
virtual void onAbandon() SK_OVERRIDE;
virtual void onRelease() SK_OVERRIDE;
private:
TexParams fTexParams;
GrGpu::ResetTimestamp fTexParamsTimestamp;
GrGLTexID* fTexIDObj;
void init(GrGpuGL* gpu,
const Desc& textureDesc,
const GrGLRenderTarget::Desc* rtDesc);
typedef GrTexture INHERITED;
};
#endif
|
