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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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78
dom/canvas/WebGLExtensionInstancedArrays.cpp Normal file
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/* -*- Mode: C++; tab-width: 20; 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 "WebGLExtensions.h"
#include "GLContext.h"
#include "mozilla/dom/WebGLRenderingContextBinding.h"
#include "WebGLContext.h"
namespace mozilla {
WebGLExtensionInstancedArrays::WebGLExtensionInstancedArrays(WebGLContext* webgl)
: WebGLExtensionBase(webgl)
{
MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported.");
}
WebGLExtensionInstancedArrays::~WebGLExtensionInstancedArrays()
{
}
void
WebGLExtensionInstancedArrays::DrawArraysInstancedANGLE(GLenum mode,
GLint first,
GLsizei count,
GLsizei primcount)
{
if (mIsLost) {
mContext->ErrorInvalidOperation("%s: Extension is lost.",
"drawArraysInstancedANGLE");
return;
}
mContext->DrawArraysInstanced(mode, first, count, primcount);
}
void
WebGLExtensionInstancedArrays::DrawElementsInstancedANGLE(GLenum mode,
GLsizei count,
GLenum type,
WebGLintptr offset,
GLsizei primcount)
{
if (mIsLost) {
mContext->ErrorInvalidOperation("%s: Extension is lost.",
"drawElementsInstancedANGLE");
return;
}
mContext->DrawElementsInstanced(mode, count, type, offset, primcount);
}
void
WebGLExtensionInstancedArrays::VertexAttribDivisorANGLE(GLuint index,
GLuint divisor)
{
if (mIsLost) {
mContext->ErrorInvalidOperation("%s: Extension is lost.",
"vertexAttribDivisorANGLE");
return;
}
mContext->VertexAttribDivisor(index, divisor);
}
bool
WebGLExtensionInstancedArrays::IsSupported(const WebGLContext* webgl)
{
gl::GLContext* gl = webgl->GL();
return gl->IsSupported(gl::GLFeature::draw_instanced) &&
gl->IsSupported(gl::GLFeature::instanced_arrays);
}
IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionInstancedArrays, ANGLE_instanced_arrays)
} // namespace mozilla