forked from mirrors/gecko-dev
91ab854fc8
Our goal here is to just be fast enough that we don't need to cache. Differential Revision: https://phabricator.services.mozilla.com/D64215 --HG-- extra : moz-landing-system : lando
70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WebGLVertexArray.h"
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#include "GLContext.h"
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#include "mozilla/dom/WebGLRenderingContextBinding.h"
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#include "WebGLBuffer.h"
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#include "WebGLContext.h"
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#include "WebGLVertexArrayGL.h"
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#include "WebGLVertexArrayFake.h"
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namespace mozilla {
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WebGLVertexArray* WebGLVertexArray::Create(WebGLContext* webgl) {
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if (webgl->gl->IsSupported(gl::GLFeature::vertex_array_object)) {
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return new WebGLVertexArrayGL(webgl);
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}
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return new WebGLVertexArrayFake(webgl);
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}
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WebGLVertexArray::WebGLVertexArray(WebGLContext* const webgl)
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: WebGLContextBoundObject(webgl) {
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const webgl::VertAttribPointerDesc defaultDesc;
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const webgl::VertAttribPointerCalculated defaultCalc;
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for (const auto i : IntegerRange(mContext->MaxVertexAttribs())) {
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AttribPointer(i, nullptr, defaultDesc, defaultCalc);
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}
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}
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WebGLVertexArray::~WebGLVertexArray() = default;
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Maybe<double> WebGLVertexArray::GetVertexAttrib(const uint32_t index,
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const GLenum pname) const {
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const auto& binding = mBindings[index];
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const auto& desc = mDescs[index];
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switch (pname) {
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_STRIDE:
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return Some(desc.byteStrideOrZero);
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_SIZE:
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return Some(desc.channels);
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_TYPE:
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return Some(desc.type);
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_INTEGER:
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return Some(desc.intFunc);
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_DIVISOR:
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return Some(binding.layout.divisor);
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_ENABLED:
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return Some(binding.layout.isArray);
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_NORMALIZED:
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return Some(desc.normalized);
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_POINTER:
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return Some(binding.layout.byteOffset);
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default:
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return {};
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}
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}
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} // namespace mozilla
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