| /* |
| * Copyright (C) 2020 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| |
| #if ENABLE(WEBGL) |
| #include "WebGLColorBufferFloat.h" |
| |
| #include "ExtensionsGL.h" |
| |
| namespace WebCore { |
| |
| WebGLColorBufferFloat::WebGLColorBufferFloat(WebGLRenderingContextBase& context) |
| : WebGLExtension(context) |
| { |
| context.graphicsContextGL()->getExtensions().ensureEnabled("GL_CHROMIUM_color_buffer_float_rgba"_s); |
| // Optimistically enable RGB floating-point render targets also, if possible. |
| context.graphicsContextGL()->getExtensions().ensureEnabled("GL_CHROMIUM_color_buffer_float_rgb"_s); |
| // https://github.com/KhronosGroup/WebGL/pull/2830 |
| // Spec requires EXT_float_blend to be turned on implicitly here. |
| context.graphicsContextGL()->getExtensions().ensureEnabled("GL_EXT_float_blend"_s); |
| } |
| |
| WebGLColorBufferFloat::~WebGLColorBufferFloat() = default; |
| |
| WebGLExtension::ExtensionName WebGLColorBufferFloat::getName() const |
| { |
| return WebGLColorBufferFloatName; |
| } |
| |
| bool WebGLColorBufferFloat::supported(const WebGLRenderingContextBase& context) |
| { |
| return context.graphicsContextGL()->getExtensions().supports("GL_OES_texture_float"_s) |
| && context.graphicsContextGL()->getExtensions().supports("GL_CHROMIUM_color_buffer_float_rgba"_s); |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(WEBGL) |