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
|
/*
* Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef FECustomFilter_h
#define FECustomFilter_h
#if ENABLE(CSS_SHADERS) && USE(3D_GRAPHICS)
#include "CustomFilterOperation.h"
#include "Filter.h"
#include "FilterEffect.h"
#include "GraphicsTypes3D.h"
#include <wtf/RefPtr.h>
namespace JSC {
class Uint8ClampedArray;
}
namespace WebCore {
class CachedShader;
class CustomFilterArrayParameter;
class CustomFilterCompiledProgram;
class CustomFilterGlobalContext;
class CustomFilterMesh;
class CustomFilterNumberParameter;
class CustomFilterProgram;
class CustomFilterTransformParameter;
class CustomFilterValidatedProgram;
class DrawingBuffer;
class GraphicsContext3D;
class IntSize;
class FECustomFilter : public FilterEffect {
public:
static PassRefPtr<FECustomFilter> create(Filter*, CustomFilterGlobalContext*, PassRefPtr<CustomFilterValidatedProgram>, const CustomFilterParameterList&,
unsigned meshRows, unsigned meshColumns, CustomFilterOperation::MeshBoxType,
CustomFilterOperation::MeshType);
virtual void platformApplySoftware();
virtual void dump();
virtual TextStream& externalRepresentation(TextStream&, int indention) const;
private:
FECustomFilter(Filter*, CustomFilterGlobalContext*, PassRefPtr<CustomFilterValidatedProgram>, const CustomFilterParameterList&,
unsigned meshRows, unsigned meshColumns, CustomFilterOperation::MeshBoxType,
CustomFilterOperation::MeshType);
~FECustomFilter();
bool applyShader();
void clearShaderResult();
bool initializeContext();
enum CustomFilterDrawType {
NEEDS_INPUT_TEXTURE,
NO_INPUT_TEXTURE
};
bool prepareForDrawing(CustomFilterDrawType = NEEDS_INPUT_TEXTURE);
void drawFilterMesh(Platform3DObject inputTexture);
bool programNeedsInputTexture() const;
bool ensureInputTexture();
void uploadInputTexture(Uint8ClampedArray* srcPixelArray);
bool resizeContextIfNeeded(const IntSize&);
bool resizeContext(const IntSize&);
bool canUseMultisampleBuffers() const;
bool createMultisampleBuffer();
bool resizeMultisampleBuffers(const IntSize&);
void resolveMultisampleBuffer();
void deleteMultisampleRenderBuffers();
bool ensureFrameBuffer();
void deleteRenderBuffers();
void bindVertexAttribute(int attributeLocation, unsigned size, unsigned offset);
void unbindVertexAttribute(int attributeLocation);
void bindProgramArrayParameters(int uniformLocation, CustomFilterArrayParameter*);
void bindProgramNumberParameters(int uniformLocation, CustomFilterNumberParameter*);
void bindProgramTransformParameter(int uniformLocation, CustomFilterTransformParameter*);
void bindProgramParameters();
void bindProgramAndBuffers(Platform3DObject inputTexture);
void unbindVertexAttributes();
// No need to keep a reference here. It is owned by the RenderView.
CustomFilterGlobalContext* m_globalContext;
RefPtr<GraphicsContext3D> m_context;
RefPtr<CustomFilterValidatedProgram> m_validatedProgram;
RefPtr<CustomFilterCompiledProgram> m_compiledProgram;
RefPtr<CustomFilterMesh> m_mesh;
IntSize m_contextSize;
Platform3DObject m_inputTexture;
Platform3DObject m_frameBuffer;
Platform3DObject m_depthBuffer;
Platform3DObject m_destTexture;
bool m_triedMultisampleBuffer;
Platform3DObject m_multisampleFrameBuffer;
Platform3DObject m_multisampleRenderBuffer;
Platform3DObject m_multisampleDepthBuffer;
RefPtr<CustomFilterProgram> m_program;
CustomFilterParameterList m_parameters;
unsigned m_meshRows;
unsigned m_meshColumns;
CustomFilterOperation::MeshType m_meshType;
};
} // namespace WebCore
#endif // ENABLE(CSS_SHADERS) && USE(3D_GRAPHICS)
#endif // FECustomFilter_h
|
