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Diffstat (limited to '')
| -rw-r--r-- | dom/canvas/WebGL2Context.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/dom/canvas/WebGL2Context.h b/dom/canvas/WebGL2Context.h new file mode 100644 index 0000000000..138dd85b80 --- /dev/null +++ b/dom/canvas/WebGL2Context.h @@ -0,0 +1,156 @@ +/* -*- 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 |