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/* 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 "GLContext.h"
#include "mozilla/dom/WebGLRenderingContextBinding.h"
#include "WebGLContext.h"
#include "WebGLFormats.h"
#ifdef FOO
#error FOO is already defined! We use FOO() macros to keep things succinct in this file.
#endif
namespace mozilla {
WebGLExtensionColorBufferFloat::WebGLExtensionColorBufferFloat(WebGLContext* webgl)
: WebGLExtensionBase(webgl)
{
MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported.");
auto& fua = webgl->mFormatUsage;
auto fnUpdateUsage = [&fua](GLenum sizedFormat, webgl::EffectiveFormat effFormat) {
auto usage = fua->EditUsage(effFormat);
usage->SetRenderable();
fua->AllowRBFormat(sizedFormat, usage);
};
#define FOO(x) fnUpdateUsage(LOCAL_GL_ ## x, webgl::EffectiveFormat::x)
// The extension doesn't actually add RGB32F; only RGBA32F.
FOO(RGBA32F);
#undef FOO
}
WebGLExtensionColorBufferFloat::~WebGLExtensionColorBufferFloat()
{
}
bool
WebGLExtensionColorBufferFloat::IsSupported(const WebGLContext* webgl)
{
gl::GLContext* gl = webgl->GL();
// ANGLE supports this, but doesn't have a way to advertize its support,
// since it's compliant with WEBGL_color_buffer_float's clamping, but not
// EXT_color_buffer_float.
return gl->IsSupported(gl::GLFeature::renderbuffer_color_float) ||
gl->IsANGLE();
}
IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionColorBufferFloat, WEBGL_color_buffer_float)
} // namespace mozilla
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