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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/canvas/WebGLVertexArrayFake.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (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.cpp70
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
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+/* -*- 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