dom/canvas/WebGLExtensionEXTColorBufferFloat.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/WebGL2RenderingContextBinding.h"
   9 #include "WebGLContext.h"
  10 #include "WebGLFormats.h"
  11
  12 namespace mozilla {
  13
  14 WebGLExtensionEXTColorBufferFloat::WebGLExtensionEXTColorBufferFloat(
  15     WebGLContext* webgl)
  16     : WebGLExtensionBase(webgl) {
  17   MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported.");
  18
  19   auto& fua = webgl->mFormatUsage;
  20
  21   auto fnUpdateUsage = [&fua](GLenum sizedFormat,
  22                               webgl::EffectiveFormat effFormat) {
  23     auto usage = fua->EditUsage(effFormat);
  24     usage->SetRenderable();
  25     fua->AllowRBFormat(sizedFormat, usage);
  26   };
  27
  28 #define FOO(x) fnUpdateUsage(LOCAL_GL_##x, webgl::EffectiveFormat::x)
  29
  30   FOO(R16F);
  31   FOO(RG16F);
  32   FOO(RGBA16F);
  33
  34   FOO(R32F);
  35   FOO(RG32F);
  36   FOO(RGBA32F);
  37
  38   FOO(R11F_G11F_B10F);
  39
  40 #undef FOO
  41 }
  42
  43 /*static*/
  44 bool WebGLExtensionEXTColorBufferFloat::IsSupported(const WebGLContext* webgl) {
  45   if (!webgl->IsWebGL2()) return false;
  46
  47   const gl::GLContext* gl = webgl->GL();
  48   return gl->IsSupported(gl::GLFeature::EXT_color_buffer_float);
  49 }
  50
  51 }  // namespace mozilla