зеркало из https://github.com/mozilla/gecko-dev.git
55 строки
1.7 KiB
C++
55 строки
1.7 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WebGLExtensions.h"
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#include "GLContext.h"
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#include "mozilla/dom/WebGLRenderingContextBinding.h"
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#include "WebGLContext.h"
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#include "WebGLFormats.h"
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namespace mozilla {
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WebGLExtensionColorBufferHalfFloat::WebGLExtensionColorBufferHalfFloat(
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WebGLContext* webgl)
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: WebGLExtensionBase(webgl) {
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MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported.");
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auto& fua = webgl->mFormatUsage;
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auto fnUpdateUsage = [&fua](GLenum sizedFormat,
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webgl::EffectiveFormat effFormat,
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const bool renderable) {
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auto usage = fua->EditUsage(effFormat);
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if (renderable) {
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usage->SetRenderable();
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}
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fua->AllowRBFormat(sizedFormat, usage, renderable);
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};
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#define FOO(x, y) fnUpdateUsage(LOCAL_GL_##x, webgl::EffectiveFormat::x, y)
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FOO(RGBA16F, true);
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FOO(RGB16F, false); // It's not required, thus not portable. (Also there's a
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// wicked driver bug on Mac+Intel)
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#undef FOO
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}
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WebGLExtensionColorBufferHalfFloat::~WebGLExtensionColorBufferHalfFloat() {}
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bool WebGLExtensionColorBufferHalfFloat::IsSupported(
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const WebGLContext* webgl) {
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if (webgl->IsWebGL2()) return false;
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const auto& gl = webgl->gl;
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return gl->IsSupported(gl::GLFeature::renderbuffer_color_half_float) &&
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gl->IsSupported(gl::GLFeature::frag_color_float);
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}
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IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionColorBufferHalfFloat,
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EXT_color_buffer_half_float)
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} // namespace mozilla
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