gecko/dom/canvas/WebGLExtensionInstancedArrays.cpp

64 lines
2.1 KiB
C++

/* -*- 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 "WebGLContext.h"
#include "WebGLExtensions.h"
#include "mozilla/dom/WebGLRenderingContextBinding.h"
#include "GLContext.h"
using namespace mozilla;
WebGLExtensionInstancedArrays::WebGLExtensionInstancedArrays(WebGLContext* context)
: WebGLExtensionBase(context)
{
MOZ_ASSERT(IsSupported(context), "should not construct WebGLExtensionInstancedArrays: "
"ANGLE_instanced_arrays unsupported.");
}
WebGLExtensionInstancedArrays::~WebGLExtensionInstancedArrays()
{
}
void
WebGLExtensionInstancedArrays::DrawArraysInstancedANGLE(GLenum mode, GLint first,
GLsizei count, GLsizei primcount)
{
if (mIsLost)
return mContext->GenerateWarning("drawArraysInstancedANGLE: Extension is lost.");
mContext->DrawArraysInstanced(mode, first, count, primcount);
}
void
WebGLExtensionInstancedArrays::DrawElementsInstancedANGLE(GLenum mode, GLsizei count,
GLenum type, WebGLintptr offset,
GLsizei primcount)
{
if (mIsLost)
return mContext->GenerateWarning("drawElementsInstancedANGLE: Extension is lost.");
mContext->DrawElementsInstanced(mode, count, type, offset, primcount);
}
void
WebGLExtensionInstancedArrays::VertexAttribDivisorANGLE(GLuint index, GLuint divisor)
{
if (mIsLost)
return mContext->GenerateWarning("vertexAttribDivisorANGLE: Extension is lost.");
mContext->VertexAttribDivisor(index, divisor);
}
bool
WebGLExtensionInstancedArrays::IsSupported(const WebGLContext* context)
{
gl::GLContext* gl = context->GL();
return gl->IsSupported(gl::GLFeature::draw_instanced) &&
gl->IsSupported(gl::GLFeature::instanced_arrays);
}
IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionInstancedArrays)