gecko-dev/dom/canvas/WebGLExtensionDrawBuffers.cpp
Jeff Gilbert d8e7b6cedb Bug 1515052 - Use WeakPtr for extension parent pointer. r=lsalzman
Differential Revision: https://phabricator.services.mozilla.com/D31942

--HG--
extra : moz-landing-system : lando
2019-05-24 12:04:12 +00:00

54 lines
1.5 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 <algorithm>
#include "GLContext.h"
#include "mozilla/dom/WebGLRenderingContextBinding.h"
#include "WebGLContext.h"
#include "WebGLFramebuffer.h"
#include "WebGLRenderbuffer.h"
#include "WebGLTexture.h"
namespace mozilla {
WebGLExtensionDrawBuffers::WebGLExtensionDrawBuffers(WebGLContext* webgl)
: WebGLExtensionBase(webgl) {
MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported.");
webgl->UpdateMaxDrawBuffers();
}
WebGLExtensionDrawBuffers::~WebGLExtensionDrawBuffers() {}
void WebGLExtensionDrawBuffers::DrawBuffersWEBGL(
const dom::Sequence<GLenum>& buffers) {
if (mIsLost) {
if (mContext) {
mContext->ErrorInvalidOperation("drawBuffersWEBGL: Extension is lost.");
}
return;
}
mContext->DrawBuffers(buffers);
}
bool WebGLExtensionDrawBuffers::IsSupported(const WebGLContext* webgl) {
if (webgl->IsWebGL2()) return false;
gl::GLContext* gl = webgl->GL();
if (gl->IsGLES() && gl->Version() >= 300) {
// ANGLE's shader translator can't translate ESSL1 exts to ESSL3. (bug
// 1524804)
return false;
}
return gl->IsSupported(gl::GLFeature::draw_buffers);
}
IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionDrawBuffers, WEBGL_draw_buffers)
} // namespace mozilla