зеркало из https://github.com/mozilla/gecko-dev.git
67 строки
2.4 KiB
C++
67 строки
2.4 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 "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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void
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WebGLExtensionTextureFloat::InitWebGLFormats(webgl::FormatUsageAuthority* authority)
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{
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MOZ_ASSERT(authority);
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auto addFormatIfMissing = [authority](EffectiveFormat effectiveFormat)
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{
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if (!authority->GetUsage(effectiveFormat)) {
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authority->AddFormat(effectiveFormat, false, false, false, false);
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}
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};
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// Populate authority with any missing effective formats.
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addFormatIfMissing(EffectiveFormat::RGBA32F);
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addFormatIfMissing(EffectiveFormat::RGB32F);
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addFormatIfMissing(EffectiveFormat::Luminance32FAlpha32F);
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addFormatIfMissing(EffectiveFormat::Luminance32F);
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addFormatIfMissing(EffectiveFormat::Alpha32F);
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}
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WebGLExtensionTextureFloat::WebGLExtensionTextureFloat(WebGLContext* webgl)
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: WebGLExtensionBase(webgl)
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{
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webgl::FormatUsageAuthority* authority = webgl->mFormatUsage.get();
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auto updateUsage = [authority](EffectiveFormat effectiveFormat,
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GLenum unpackFormat, GLenum unpackType)
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{
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webgl::FormatUsageInfo* usage = authority->GetUsage(effectiveFormat);
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MOZ_ASSERT(usage);
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usage->asTexture = true;
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authority->AddUnpackOption(unpackFormat, unpackType, effectiveFormat);
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};
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// Ensure require formats are initialized.
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InitWebGLFormats(authority);
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// Update usage to allow asTexture and add unpack
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updateUsage(EffectiveFormat::RGBA32F , LOCAL_GL_RGBA , LOCAL_GL_FLOAT);
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updateUsage(EffectiveFormat::RGB32F , LOCAL_GL_RGB , LOCAL_GL_FLOAT);
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updateUsage(EffectiveFormat::Luminance32FAlpha32F, LOCAL_GL_LUMINANCE_ALPHA, LOCAL_GL_FLOAT);
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updateUsage(EffectiveFormat::Luminance32F , LOCAL_GL_LUMINANCE , LOCAL_GL_FLOAT);
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updateUsage(EffectiveFormat::Alpha32F , LOCAL_GL_ALPHA , LOCAL_GL_FLOAT);
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}
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WebGLExtensionTextureFloat::~WebGLExtensionTextureFloat()
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{
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}
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IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionTextureFloat, OES_texture_float)
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} // namespace mozilla
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