зеркало из https://github.com/mozilla/gecko-dev.git
90 строки
2.7 KiB
C++
90 строки
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* 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
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* file, 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 "mozilla/StaticPrefs_webgl.h"
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#include "WebGLContext.h"
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namespace mozilla {
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WebGLExtensionBlendMinMax::WebGLExtensionBlendMinMax(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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}
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bool WebGLExtensionBlendMinMax::IsSupported(const WebGLContext* webgl) {
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if (webgl->IsWebGL2()) return false;
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return webgl->GL()->IsSupported(gl::GLFeature::blend_minmax);
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}
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// -
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WebGLExtensionExplicitPresent::WebGLExtensionExplicitPresent(
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WebGLContext* const 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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}
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bool WebGLExtensionExplicitPresent::IsSupported(
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const WebGLContext* const webgl) {
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return StaticPrefs::webgl_enable_draft_extensions();
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}
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// -
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WebGLExtensionFloatBlend::WebGLExtensionFloatBlend(WebGLContext* const 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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}
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bool WebGLExtensionFloatBlend::IsSupported(const WebGLContext* const webgl) {
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if (!WebGLExtensionColorBufferFloat::IsSupported(webgl) &&
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!WebGLExtensionEXTColorBufferFloat::IsSupported(webgl))
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return false;
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const auto& gl = webgl->gl;
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if (!gl->IsGLES() && gl->Version() >= 300) return true;
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if (gl->IsGLES() && gl->Version() >= 320) return true;
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return gl->IsExtensionSupported(gl::GLContext::EXT_float_blend);
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}
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// -
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WebGLExtensionFBORenderMipmap::WebGLExtensionFBORenderMipmap(
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WebGLContext* const 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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}
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bool WebGLExtensionFBORenderMipmap::IsSupported(
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const WebGLContext* const webgl) {
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if (webgl->IsWebGL2()) return false;
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const auto& gl = webgl->gl;
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if (!gl->IsGLES()) return true;
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if (gl->Version() >= 300) return true;
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return gl->IsExtensionSupported(gl::GLContext::OES_fbo_render_mipmap);
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}
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// -
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WebGLExtensionMultiview::WebGLExtensionMultiview(WebGLContext* const 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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}
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bool WebGLExtensionMultiview::IsSupported(const WebGLContext* const 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::multiview);
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}
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} // namespace mozilla
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