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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /dom/canvas/WebGLVertexArrayFake.cpp | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/canvas/WebGLVertexArrayFake.cpp')
-rw-r--r-- | dom/canvas/WebGLVertexArrayFake.cpp | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/dom/canvas/WebGLVertexArrayFake.cpp b/dom/canvas/WebGLVertexArrayFake.cpp new file mode 100644 index 000000000..ee9df6dac --- /dev/null +++ b/dom/canvas/WebGLVertexArrayFake.cpp @@ -0,0 +1,70 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* 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/. */ + +#include "WebGLVertexArrayFake.h" + +#include "GLContext.h" +#include "WebGLContext.h" + +namespace mozilla { + +WebGLVertexArrayFake::WebGLVertexArrayFake(WebGLContext* webgl) + : WebGLVertexArray(webgl) + , mIsVAO(false) +{ } + +void +WebGLVertexArrayFake::BindVertexArrayImpl() +{ + // Go through and re-bind all buffers and setup all + // vertex attribute pointers + gl::GLContext* gl = mContext->gl; + + WebGLRefPtr<WebGLVertexArray> prevVertexArray = mContext->mBoundVertexArray; + + mContext->mBoundVertexArray = this; + + WebGLRefPtr<WebGLBuffer> prevBuffer = mContext->mBoundArrayBuffer; + mContext->BindBuffer(LOCAL_GL_ELEMENT_ARRAY_BUFFER, mElementArrayBuffer); + + size_t i = 0; + for (const auto& vd : mAttribs) { + mContext->BindBuffer(LOCAL_GL_ARRAY_BUFFER, vd.mBuf); + vd.DoVertexAttribPointer(gl, i); + + if (vd.mEnabled) { + gl->fEnableVertexAttribArray(i); + } else { + gl->fDisableVertexAttribArray(i); + } + ++i; + } + + size_t len = prevVertexArray->mAttribs.Length(); + for (; i < len; ++i) { + const auto& vd = prevVertexArray->mAttribs[i]; + + if (vd.mEnabled) { + gl->fDisableVertexAttribArray(i); + } + } + + mContext->BindBuffer(LOCAL_GL_ARRAY_BUFFER, prevBuffer); + mIsVAO = true; +} + +void +WebGLVertexArrayFake::DeleteImpl() +{ + mIsVAO = false; +} + +bool +WebGLVertexArrayFake::IsVertexArrayImpl() const +{ + return mIsVAO; +} + +} // namespace mozilla |