michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "WebGLContext.h"
michael@0: #include "WebGLExtensions.h"
michael@0: #include "mozilla/dom/WebGLRenderingContextBinding.h"
michael@0: #include "GLContext.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: 
michael@0: WebGLExtensionInstancedArrays::WebGLExtensionInstancedArrays(WebGLContext* context)
michael@0:   : WebGLExtensionBase(context)
michael@0: {
michael@0:     MOZ_ASSERT(IsSupported(context), "should not construct WebGLExtensionInstancedArrays: "
michael@0:                                      "ANGLE_instanced_arrays unsupported.");
michael@0: }
michael@0: 
michael@0: WebGLExtensionInstancedArrays::~WebGLExtensionInstancedArrays()
michael@0: {
michael@0: }
michael@0: 
michael@0: void
michael@0: WebGLExtensionInstancedArrays::DrawArraysInstancedANGLE(GLenum mode, GLint first,
michael@0:                                                         GLsizei count, GLsizei primcount)
michael@0: {
michael@0:     if (mIsLost)
michael@0:         return mContext->ErrorInvalidOperation("drawArraysInstancedANGLE: Extension is lost.");
michael@0: 
michael@0:     mContext->DrawArraysInstanced(mode, first, count, primcount);
michael@0: }
michael@0: 
michael@0: void
michael@0: WebGLExtensionInstancedArrays::DrawElementsInstancedANGLE(GLenum mode, GLsizei count,
michael@0:                                                           GLenum type, WebGLintptr offset,
michael@0:                                                           GLsizei primcount)
michael@0: {
michael@0:     if (mIsLost)
michael@0:         return mContext->ErrorInvalidOperation("drawElementsInstancedANGLE: Extension is lost.");
michael@0: 
michael@0:     mContext->DrawElementsInstanced(mode, count, type, offset, primcount);
michael@0: }
michael@0: 
michael@0: void
michael@0: WebGLExtensionInstancedArrays::VertexAttribDivisorANGLE(GLuint index, GLuint divisor)
michael@0: {
michael@0:     if (mIsLost)
michael@0:         return mContext->ErrorInvalidOperation("vertexAttribDivisorANGLE: Extension is lost.");
michael@0: 
michael@0:     mContext->VertexAttribDivisor(index, divisor);
michael@0: }
michael@0: 
michael@0: bool
michael@0: WebGLExtensionInstancedArrays::IsSupported(const WebGLContext* context)
michael@0: {
michael@0:     gl::GLContext* gl = context->GL();
michael@0: 
michael@0:     return gl->IsSupported(gl::GLFeature::draw_instanced) &&
michael@0:            gl->IsSupported(gl::GLFeature::instanced_arrays);
michael@0: }
michael@0: 
michael@0: IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionInstancedArrays)