1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/src/WebGLContextVertexArray.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,97 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "WebGLContext.h"
1.10 +#include "WebGLBuffer.h"
1.11 +#include "WebGLVertexAttribData.h"
1.12 +#include "WebGLVertexArray.h"
1.13 +#include "GLContext.h"
1.14 +
1.15 +using namespace mozilla;
1.16 +
1.17 +void
1.18 +WebGLContext::BindVertexArray(WebGLVertexArray *array)
1.19 +{
1.20 + if (IsContextLost())
1.21 + return;
1.22 +
1.23 + if (!ValidateObjectAllowDeletedOrNull("bindVertexArrayObject", array))
1.24 + return;
1.25 +
1.26 + if (array && array->IsDeleted()) {
1.27 + /* http://www.khronos.org/registry/gles/extensions/OES/OES_vertex_array_object.txt
1.28 + * BindVertexArrayOES fails and an INVALID_OPERATION error is
1.29 + * generated if array is not a name returned from a previous call to
1.30 + * GenVertexArraysOES, or if such a name has since been deleted with
1.31 + * DeleteVertexArraysOES
1.32 + */
1.33 + ErrorInvalidOperation("bindVertexArray: can't bind a deleted array!");
1.34 + return;
1.35 + }
1.36 +
1.37 + InvalidateBufferFetching();
1.38 +
1.39 + MakeContextCurrent();
1.40 +
1.41 + if (array) {
1.42 + gl->fBindVertexArray(array->GLName());
1.43 + array->SetHasEverBeenBound(true);
1.44 + mBoundVertexArray = array;
1.45 + }
1.46 + else {
1.47 + gl->fBindVertexArray(0);
1.48 + mBoundVertexArray = mDefaultVertexArray;
1.49 + }
1.50 +}
1.51 +
1.52 +already_AddRefed<WebGLVertexArray>
1.53 +WebGLContext::CreateVertexArray()
1.54 +{
1.55 + if (IsContextLost())
1.56 + return nullptr;
1.57 +
1.58 + nsRefPtr<WebGLVertexArray> globj = new WebGLVertexArray(this);
1.59 +
1.60 + MakeContextCurrent();
1.61 + gl->fGenVertexArrays(1, &globj->mGLName);
1.62 +
1.63 + mVertexArrays.insertBack(globj);
1.64 +
1.65 + return globj.forget();
1.66 +}
1.67 +
1.68 +void
1.69 +WebGLContext::DeleteVertexArray(WebGLVertexArray *array)
1.70 +{
1.71 + if (IsContextLost())
1.72 + return;
1.73 +
1.74 + if (array == nullptr)
1.75 + return;
1.76 +
1.77 + if (array->IsDeleted())
1.78 + return;
1.79 +
1.80 + if (mBoundVertexArray == array)
1.81 + BindVertexArray(static_cast<WebGLVertexArray*>(nullptr));
1.82 +
1.83 + array->RequestDelete();
1.84 +}
1.85 +
1.86 +bool
1.87 +WebGLContext::IsVertexArray(WebGLVertexArray *array)
1.88 +{
1.89 + if (IsContextLost())
1.90 + return false;
1.91 +
1.92 + if (!array)
1.93 + return false;
1.94 +
1.95 + return ValidateObjectAllowDeleted("isVertexArray", array) &&
1.96 + !array->IsDeleted() &&
1.97 + array->HasEverBeenBound();
1.98 +}
1.99 +
1.100 +
