dom/canvas/WebGLExtensionColorBufferFloat.cpp

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   3  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #include "WebGLExtensions.h"
   6
   7 #include "GLContext.h"
   8 #include "mozilla/dom/WebGLRenderingContextBinding.h"
   9 #include "WebGLContext.h"
  10
  11 namespace mozilla {
  12
  13 WebGLExtensionColorBufferFloat::WebGLExtensionColorBufferFloat(WebGLContext* webgl)
  14     : WebGLExtensionBase(webgl)
  15 {
  16     MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported.");
  17 }
  18
  19 WebGLExtensionColorBufferFloat::~WebGLExtensionColorBufferFloat()
  20 {
  21 }
  22
  23 bool
  24 WebGLExtensionColorBufferFloat::IsSupported(const WebGLContext* webgl)
  25 {
  26     gl::GLContext* gl = webgl->GL();
  27
  28     // ANGLE supports this, but doesn't have a way to advertize its support,
  29     // since it's compliant with WEBGL_color_buffer_float's clamping, but not
  30     // EXT_color_buffer_float.
  31     return gl->IsSupported(gl::GLFeature::renderbuffer_color_float) ||
  32            gl->IsANGLE();
  33 }
  34
  35 IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionColorBufferFloat)
  36
  37 } // namespace mozilla