| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "modules/webgl/WebGLContextAttributeHelpers.h" |
| |
| #include "core/frame/Settings.h" |
| |
| namespace blink { |
| |
| WebGLContextAttributes toWebGLContextAttributes( |
| const CanvasContextCreationAttributes& attrs) { |
| WebGLContextAttributes result; |
| result.setAlpha(attrs.alpha()); |
| result.setDepth(attrs.depth()); |
| result.setStencil(attrs.stencil()); |
| result.setAntialias(attrs.antialias()); |
| result.setPremultipliedAlpha(attrs.premultipliedAlpha()); |
| result.setPreserveDrawingBuffer(attrs.preserveDrawingBuffer()); |
| result.setFailIfMajorPerformanceCaveat(attrs.failIfMajorPerformanceCaveat()); |
| return result; |
| } |
| |
| Platform::ContextAttributes toPlatformContextAttributes( |
| const CanvasContextCreationAttributes& attrs, |
| unsigned webGLVersion, |
| bool supportOwnOffscreenSurface) { |
| Platform::ContextAttributes result; |
| result.failIfMajorPerformanceCaveat = attrs.failIfMajorPerformanceCaveat(); |
| result.webGLVersion = webGLVersion; |
| if (supportOwnOffscreenSurface) { |
| // Only ask for alpha/depth/stencil/antialias if we may be using the default |
| // framebuffer. They are not needed for standard offscreen rendering. |
| result.supportAlpha = attrs.alpha(); |
| result.supportDepth = attrs.depth(); |
| result.supportStencil = attrs.stencil(); |
| result.supportAntialias = attrs.antialias(); |
| } |
| return result; |
| } |
| |
| } // namespace blink |
