gecko-dev/dom/canvas/WebGLExtensionColorBufferHalfFloat.cpp
Jeff Gilbert 68be900a6c Bug 1427668 - Require frag_color_float for color_buffer_*float extensions. - r=daoshengmu
Add probe for faulty frag_color_float implementations.

MozReview-Commit-ID: E2I0mrDuicV
2018-01-05 15:27:59 -08:00

54 lines
1.5 KiB
C++

/* 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 {
WebGLExtensionColorBufferHalfFloat::WebGLExtensionColorBufferHalfFloat(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)
FOO(RGBA16F);
FOO(RGB16F);
#undef FOO
}
WebGLExtensionColorBufferHalfFloat::~WebGLExtensionColorBufferHalfFloat()
{
}
bool
WebGLExtensionColorBufferHalfFloat::IsSupported(const WebGLContext* webgl)
{
const auto& gl = webgl->gl;
return gl->IsSupported(gl::GLFeature::renderbuffer_color_half_float) &&
gl->IsSupported(gl::GLFeature::frag_color_float);
}
IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionColorBufferHalfFloat, EXT_color_buffer_half_float)
} // namespace mozilla