зеркало из https://github.com/mozilla/gecko-dev.git
111 строки
3.6 KiB
C++
111 строки
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* 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 "mozilla/StaticPrefs.h"
|
|
#include "WebGLContext.h"
|
|
|
|
namespace mozilla {
|
|
|
|
WebGLExtensionBase::WebGLExtensionBase(WebGLContext* context)
|
|
: WebGLContextBoundObject(context), mIsLost(false) {}
|
|
|
|
WebGLExtensionBase::~WebGLExtensionBase() {}
|
|
|
|
void WebGLExtensionBase::MarkLost() {
|
|
mIsLost = true;
|
|
|
|
OnMarkLost();
|
|
}
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(WebGLExtensionBase)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WebGLExtensionBase, AddRef)
|
|
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WebGLExtensionBase, Release)
|
|
|
|
// -
|
|
|
|
WebGLExtensionFloatBlend::WebGLExtensionFloatBlend(WebGLContext* const webgl)
|
|
: WebGLExtensionBase(webgl) {
|
|
MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported.");
|
|
}
|
|
|
|
WebGLExtensionFloatBlend::~WebGLExtensionFloatBlend() = default;
|
|
|
|
bool WebGLExtensionFloatBlend::IsSupported(const WebGLContext* const webgl) {
|
|
if (!WebGLExtensionColorBufferFloat::IsSupported(webgl) &&
|
|
!WebGLExtensionEXTColorBufferFloat::IsSupported(webgl))
|
|
return false;
|
|
|
|
const auto& gl = webgl->gl;
|
|
if (!gl->IsGLES() && gl->Version() >= 300) return true;
|
|
if (gl->IsGLES() && gl->Version() >= 320) return true;
|
|
return gl->IsExtensionSupported(gl::GLContext::EXT_float_blend);
|
|
}
|
|
|
|
IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionFloatBlend, EXT_float_blend)
|
|
|
|
// -
|
|
|
|
WebGLExtensionFBORenderMipmap::WebGLExtensionFBORenderMipmap(
|
|
WebGLContext* const webgl)
|
|
: WebGLExtensionBase(webgl) {
|
|
MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported.");
|
|
}
|
|
|
|
WebGLExtensionFBORenderMipmap::~WebGLExtensionFBORenderMipmap() = default;
|
|
|
|
bool WebGLExtensionFBORenderMipmap::IsSupported(
|
|
const WebGLContext* const webgl) {
|
|
if (webgl->IsWebGL2()) return false;
|
|
if (!StaticPrefs::WebGLDraftExtensionsEnabled()) return false;
|
|
|
|
const auto& gl = webgl->gl;
|
|
if (!gl->IsGLES()) return true;
|
|
if (gl->Version() >= 300) return true;
|
|
return gl->IsExtensionSupported(gl::GLContext::OES_fbo_render_mipmap);
|
|
}
|
|
|
|
IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionFBORenderMipmap, OES_fbo_render_mipmap)
|
|
|
|
// -
|
|
|
|
WebGLExtensionMultiview::WebGLExtensionMultiview(WebGLContext* const webgl)
|
|
: WebGLExtensionBase(webgl) {
|
|
MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported.");
|
|
}
|
|
|
|
WebGLExtensionMultiview::~WebGLExtensionMultiview() = default;
|
|
|
|
bool WebGLExtensionMultiview::IsSupported(const WebGLContext* const webgl) {
|
|
if (!webgl->IsWebGL2()) return false;
|
|
if (!StaticPrefs::WebGLDraftExtensionsEnabled()) return false;
|
|
|
|
const auto& gl = webgl->gl;
|
|
return gl->IsSupported(gl::GLFeature::multiview);
|
|
}
|
|
|
|
void WebGLExtensionMultiview::FramebufferTextureMultiviewOVR(
|
|
const GLenum target, const GLenum attachment, WebGLTexture* const texture,
|
|
const GLint level, const GLint baseViewIndex,
|
|
const GLsizei numViews) const {
|
|
const WebGLContext::FuncScope funcScope(*mContext,
|
|
"framebufferTextureMultiviewOVR");
|
|
if (mIsLost) {
|
|
mContext->ErrorInvalidOperation("Extension is lost.");
|
|
return;
|
|
}
|
|
|
|
mContext->FramebufferTextureMultiview(target, attachment, texture, level,
|
|
baseViewIndex, numViews);
|
|
}
|
|
|
|
IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionMultiview, OVR_multiview2)
|
|
|
|
} // namespace mozilla
|