mirror of
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59 lines
1.9 KiB
C++
59 lines
1.9 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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using mozilla::webgl::EffectiveFormat;
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WebGLExtensionColorBufferFloat::WebGLExtensionColorBufferFloat(WebGLContext* webgl)
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: WebGLExtensionBase(webgl)
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{
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MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported.");
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webgl::FormatUsageAuthority* authority = webgl->mFormatUsage.get();
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auto updateUsage = [authority](EffectiveFormat effectiveFormat) {
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webgl::FormatUsageInfo* usage = authority->GetUsage(effectiveFormat);
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MOZ_ASSERT(usage);
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usage->asRenderbuffer = usage->isRenderable = true;
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};
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// Ensure require formats are initialized.
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WebGLExtensionTextureFloat::InitWebGLFormats(authority);
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// Update usage to allow asRenderbuffer and isRenderable
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updateUsage(EffectiveFormat::RGBA32F);
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updateUsage(EffectiveFormat::RGB32F);
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updateUsage(EffectiveFormat::Luminance32FAlpha32F);
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updateUsage(EffectiveFormat::Luminance32F);
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updateUsage(EffectiveFormat::Alpha32F);
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}
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WebGLExtensionColorBufferFloat::~WebGLExtensionColorBufferFloat()
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{
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}
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bool
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WebGLExtensionColorBufferFloat::IsSupported(const WebGLContext* webgl)
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{
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gl::GLContext* gl = webgl->GL();
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// ANGLE supports this, but doesn't have a way to advertize its support,
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// since it's compliant with WEBGL_color_buffer_float's clamping, but not
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// EXT_color_buffer_float.
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return gl->IsSupported(gl::GLFeature::renderbuffer_color_float) ||
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gl->IsANGLE();
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}
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IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionColorBufferFloat, WEBGL_color_buffer_float)
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} // namespace mozilla
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