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
|
//
// Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Shader.h: Defines the abstract gl::Shader class and its concrete derived
// classes VertexShader and FragmentShader. Implements GL shader objects and
// related functionality. [OpenGL ES 2.0.24] section 2.10 page 24 and section
// 3.8 page 84.
#ifndef LIBANGLE_SHADER_H_
#define LIBANGLE_SHADER_H_
#include <string>
#include <list>
#include <vector>
#include "angle_gl.h"
#include <GLSLANG/ShaderLang.h>
#include "common/angleutils.h"
#include "libANGLE/angletypes.h"
namespace rx
{
class ShaderImpl;
}
namespace gl
{
class Compiler;
class ResourceManager;
struct Data;
struct PackedVarying : public sh::Varying
{
unsigned int registerIndex; // Assigned during link
unsigned int columnIndex; // Assigned during link, defaults to 0
PackedVarying(const sh::Varying &varying)
: sh::Varying(varying),
registerIndex(GL_INVALID_INDEX),
columnIndex(0)
{}
bool registerAssigned() const { return registerIndex != GL_INVALID_INDEX; }
void resetRegisterAssignment()
{
registerIndex = GL_INVALID_INDEX;
}
};
class Shader : angle::NonCopyable
{
public:
Shader(ResourceManager *manager, rx::ShaderImpl *impl, GLenum type, GLuint handle);
virtual ~Shader();
GLenum getType() const { return mType; }
GLuint getHandle() const;
rx::ShaderImpl *getImplementation() { return mShader; }
const rx::ShaderImpl *getImplementation() const { return mShader; }
void deleteSource();
void setSource(GLsizei count, const char *const *string, const GLint *length);
int getInfoLogLength() const;
void getInfoLog(GLsizei bufSize, GLsizei *length, char *infoLog) const;
int getSourceLength() const;
void getSource(GLsizei bufSize, GLsizei *length, char *buffer) const;
int getTranslatedSourceLength() const;
void getTranslatedSource(GLsizei bufSize, GLsizei *length, char *buffer) const;
void getTranslatedSourceWithDebugInfo(GLsizei bufSize, GLsizei *length, char *buffer) const;
void compile(Compiler *compiler);
bool isCompiled() const { return mCompiled; }
void addRef();
void release();
unsigned int getRefCount() const;
bool isFlaggedForDeletion() const;
void flagForDeletion();
const std::vector<gl::PackedVarying> &getVaryings() const;
const std::vector<sh::Uniform> &getUniforms() const;
const std::vector<sh::InterfaceBlock> &getInterfaceBlocks() const;
const std::vector<sh::Attribute> &getActiveAttributes() const;
const std::vector<sh::Attribute> &getActiveOutputVariables() const;
std::vector<gl::PackedVarying> &getVaryings();
std::vector<sh::Uniform> &getUniforms();
std::vector<sh::InterfaceBlock> &getInterfaceBlocks();
std::vector<sh::Attribute> &getActiveAttributes();
std::vector<sh::Attribute> &getActiveOutputVariables();
int getSemanticIndex(const std::string &attributeName) const;
private:
static void getSourceImpl(const std::string &source, GLsizei bufSize, GLsizei *length, char *buffer);
rx::ShaderImpl *mShader;
const GLuint mHandle;
const GLenum mType;
std::string mSource;
unsigned int mRefCount; // Number of program objects this shader is attached to
bool mDeleteStatus; // Flag to indicate that the shader can be deleted when no longer in use
bool mCompiled; // Indicates if this shader has been successfully compiled
ResourceManager *mResourceManager;
};
}
#endif // LIBANGLE_SHADER_H_
|
