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
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#ifndef WEBGL2CONTEXT_H_
#define WEBGL2CONTEXT_H_
#include "WebGLContext.h"
namespace mozilla {
class ErrorResult;
class HostWebGLContext;
class WebGLSampler;
class WebGLSync;
class WebGLTransformFeedback;
class WebGLVertexArrayObject;
namespace dom {
class OwningUnsignedLongOrUint32ArrayOrBoolean;
class OwningWebGLBufferOrLongLong;
} // namespace dom
class WebGL2Context final : public WebGLContext {
friend class WebGLContext;
public:
WebGL2Context(HostWebGLContext& host, const webgl::InitContextDesc& desc)
: WebGLContext(host, desc) {}
virtual bool IsWebGL2() const override { return true; }
// -------------------------------------------------------------------------
// Buffer objects - WebGL2ContextBuffers.cpp
void CopyBufferSubData(GLenum readTarget, GLenum writeTarget,
uint64_t readOffset, uint64_t writeOffset,
uint64_t size) const;
bool GetBufferSubData(GLenum target, uint64_t srcByteOffset,
const Range<uint8_t>& dest) const;
// -------------------------------------------------------------------------
// Framebuffer objects - WebGL2ContextFramebuffers.cpp
void BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
GLbitfield mask, GLenum filter);
void InvalidateFramebuffer(GLenum target,
const Range<const GLenum>& attachments);
void InvalidateSubFramebuffer(GLenum target,
const Range<const GLenum>& attachments, GLint x,
GLint y, GLsizei width, GLsizei height);
void ReadBuffer(GLenum mode);
// -------------------------------------------------------------------------
// Renderbuffer objects - WebGL2ContextRenderbuffers.cpp
Maybe<std::vector<int32_t>> GetInternalformatParameter(GLenum target,
GLenum internalformat,
GLenum pname) const;
// -------------------------------------------------------------------------
// Texture objects - WebGL2ContextTextures.cpp
// GL 3.0 & ES 3.0
void VertexAttribI4i(GLuint index, GLint x, GLint y, GLint z, GLint w);
void VertexAttribI4ui(GLuint index, GLuint x, GLuint y, GLuint z, GLuint w);
// -------------------------------------------------------------------------
// Writing to the drawing buffer
/* Implemented in WebGLContext
void VertexAttribDivisor(GLuint index, GLuint divisor);
void DrawArraysInstanced(GLenum mode, GLint first, GLsizei count,
GLsizei instanceCount);
void DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type,
WebGLintptr offset, GLsizei instanceCount);
*/
// ------------------------------------------------------------------------
// Multiple Render Targets - WebGL2ContextMRTs.cpp
private:
bool ValidateClearBuffer(GLenum buffer, GLint drawBuffer,
webgl::AttribBaseType funcType);
public:
void ClearBufferfi(GLenum buffer, GLint drawBuffer, GLfloat depth,
GLint stencil);
void ClearBufferTv(GLenum buffer, GLint drawBuffer,
const webgl::TypedQuad& data);
// -------------------------------------------------------------------------
// Sampler Objects - WebGL2ContextSamplers.cpp
RefPtr<WebGLSampler> CreateSampler();
void BindSampler(GLuint unit, WebGLSampler* sampler);
void SamplerParameteri(WebGLSampler& sampler, GLenum pname, GLint param);
void SamplerParameterf(WebGLSampler& sampler, GLenum pname, GLfloat param);
Maybe<double> GetSamplerParameter(const WebGLSampler& sampler,
GLenum pname) const;
// -------------------------------------------------------------------------
// Sync objects - WebGL2ContextSync.cpp
const GLuint64 kMaxClientWaitSyncTimeoutNS =
1000 * 1000 * 1000; // 1000ms in ns.
RefPtr<WebGLSync> FenceSync(GLenum condition, GLbitfield flags);
GLenum ClientWaitSync(const WebGLSync& sync, GLbitfield flags,
GLuint64 timeout);
// -------------------------------------------------------------------------
// Transform Feedback - WebGL2ContextTransformFeedback.cpp
RefPtr<WebGLTransformFeedback> CreateTransformFeedback();
void BindTransformFeedback(WebGLTransformFeedback* tf);
void BeginTransformFeedback(GLenum primitiveMode);
void EndTransformFeedback();
void PauseTransformFeedback();
void ResumeTransformFeedback();
void TransformFeedbackVaryings(WebGLProgram& program,
const std::vector<std::string>& varyings,
GLenum bufferMode) const;
// -------------------------------------------------------------------------
// Uniform Buffer Objects and Transform Feedback Buffers -
// WebGL2ContextUniforms.cpp
// TODO(djg): Implemented in WebGLContext
/*
void BindBufferBase(GLenum target, GLuint index, WebGLBuffer* buffer);
void BindBufferRange(GLenum target, GLuint index, WebGLBuffer* buffer,
WebGLintptr offset, WebGLsizeiptr size);
*/
Maybe<double> GetParameter(GLenum pname) override;
Maybe<double> GetIndexedParameter(GLenum pname, uint32_t index) const;
// Make the inline version from the superclass visible here.
using WebGLContext::GetParameter;
void UniformBlockBinding(WebGLProgram& program, GLuint uniformBlockIndex,
GLuint uniformBlockBinding);
private:
virtual UniquePtr<webgl::FormatUsageAuthority> CreateFormatUsage(
gl::GLContext* gl) const override;
virtual bool IsTexParamValid(GLenum pname) const override;
void UpdateBoundQuery(GLenum target, WebGLQuery* query);
};
} // namespace mozilla
#endif
|
