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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_VCL_INC_OPENGL_TEXTURE_H
#define INCLUDED_VCL_INC_OPENGL_TEXTURE_H
#include <epoxy/gl.h>
#include <vcl/dllapi.h>
#include <vcl/salgtype.hxx>
#include <rtl/ustring.hxx>
#include <tools/gen.hxx>
#include <functional>
#include <memory>
#include <vector>
class ImplOpenGLTexture
{
public:
GLuint mnTexture;
int mnWidth;
int const mnHeight;
GLenum mnFilter;
GLuint mnOptStencil;
std::unique_ptr<std::vector<int>> mpSlotReferences;
std::function<void(int)> mFunctSlotDeallocateCallback;
ImplOpenGLTexture( int nWidth, int nHeight, bool bAllocate );
ImplOpenGLTexture( int nWidth, int nHeight, int nFormat, int nType, void const * pData );
ImplOpenGLTexture( int nX, int nY, int nWidth, int nHeight );
~ImplOpenGLTexture();
bool InsertBuffer(int nX, int nY, int nWidth, int nHeight, int nFormat, int nType, sal_uInt8 const * pData);
void IncreaseRefCount(int nSlotNumber);
void DecreaseRefCount(int nSlotNumber);
void InitializeSlotMechanism(int nInitialSlotSize);
void SetSlotDeallocateCallback(std::function<void(int)> aCallback)
{
mFunctSlotDeallocateCallback = aCallback;
}
void ResetSlotDeallocateCallback()
{
mFunctSlotDeallocateCallback = std::function<void(int)>();
}
GLuint AddStencil();
};
class VCL_DLLPUBLIC OpenGLTexture final
{
private:
// if the rect size doesn't match the mpImpl one, this instance
// is a sub-area from the real OpenGL texture
tools::Rectangle maRect;
std::shared_ptr<ImplOpenGLTexture> mpImpl;
int mnSlotNumber;
inline void GetTextureRect(const SalTwoRect& rPosAry, GLfloat& x1, GLfloat& x2, GLfloat& y1, GLfloat& y2) const;
bool IsValid() const
{
return (mpImpl && mpImpl->mnTexture != 0);
}
public:
OpenGLTexture();
OpenGLTexture(const std::shared_ptr<ImplOpenGLTexture>& pImpl, tools::Rectangle aRectangle, int nSlotNumber);
OpenGLTexture( int nWidth, int nHeight, bool bAllocate = true );
OpenGLTexture( int nWidth, int nHeight, int nFormat, int nType, void const * pData );
OpenGLTexture( int nX, int nY, int nWidth, int nHeight );
OpenGLTexture( const OpenGLTexture& rTexture );
OpenGLTexture( OpenGLTexture&& rTexture ) noexcept;
OpenGLTexture( const OpenGLTexture& rTexture, int nX, int nY, int nWidth, int nHeight );
~OpenGLTexture();
bool IsUnique() const;
GLuint Id() const;
int GetWidth() const;
int GetHeight() const;
void GetCoord( GLfloat* pCoord, const SalTwoRect& rPosAry, bool bInverted=false ) const;
void GetWholeCoord( GLfloat* pCoord ) const;
void Bind();
void Unbind();
void Read( GLenum nFormat, GLenum nType, sal_uInt8* pData );
GLuint AddStencil();
GLuint StencilId() const;
bool CopyData(int nWidth, int nHeight, int nFormat, int nType, sal_uInt8 const * pData);
void SaveToFile(const OUString& rFileName);
GLenum GetFilter() const;
void SetFilter( GLenum nFilter );
operator bool() const;
OpenGLTexture& operator=( const OpenGLTexture& rTexture );
OpenGLTexture& operator=( OpenGLTexture&& rTexture );
bool operator==( const OpenGLTexture& rTexture ) const;
bool operator!=( const OpenGLTexture& rTexture ) const;
template<GLenum type>
void FillCoords(std::vector<GLfloat>& aCoordVector, const SalTwoRect& rPosAry) const;
};
template<> void OpenGLTexture::FillCoords<GL_TRIANGLES>(
std::vector<GLfloat>& aCoord, const SalTwoRect& rPosAry)
const;
template<> void OpenGLTexture::FillCoords<GL_TRIANGLE_FAN>(
std::vector<GLfloat>& aCoord, const SalTwoRect& rPosAry)
const;
#endif // INCLUDED_VCL_INC_OPENGL_TEXTURE_H
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
