зеркало из https://github.com/mozilla/gecko-dev.git
60 строки
2.0 KiB
C++
60 строки
2.0 KiB
C++
|
/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 4; -*- */
|
||
|
|
/* 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 "SharedSurfaceDMABUF.h"
|
||
|
|
#include "GLContextEGL.h"
|
||
|
|
#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor, etc
|
||
|
|
|
||
|
|
namespace mozilla::gl {
|
||
|
|
|
||
|
|
/*static*/
|
||
|
|
UniquePtr<SharedSurface_DMABUF> SharedSurface_DMABUF::Create(
|
||
|
|
GLContext* prodGL, const GLFormats& formats, const gfx::IntSize& size,
|
||
|
|
bool hasAlpha) {
|
||
|
|
auto flags = static_cast<WaylandDMABufSurfaceFlags>(DMABUF_TEXTURE |
|
||
|
|
DMABUF_USE_MODIFIERS);
|
||
|
|
if (hasAlpha) {
|
||
|
|
flags = static_cast<WaylandDMABufSurfaceFlags>(flags | DMABUF_ALPHA);
|
||
|
|
}
|
||
|
|
|
||
|
|
RefPtr<WaylandDMABufSurface> surface =
|
||
|
|
WaylandDMABufSurface::CreateDMABufSurface(size.width, size.height, flags);
|
||
|
|
if (!surface || !surface->CreateEGLImage(prodGL)) {
|
||
|
|
return nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
UniquePtr<SharedSurface_DMABUF> ret;
|
||
|
|
ret.reset(new SharedSurface_DMABUF(prodGL, size, hasAlpha, surface));
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
SharedSurface_DMABUF::SharedSurface_DMABUF(
|
||
|
|
GLContext* gl, const gfx::IntSize& size, bool hasAlpha,
|
||
|
|
RefPtr<WaylandDMABufSurface> aSurface)
|
||
|
|
: SharedSurface(SharedSurfaceType::EGLSurfaceDMABUF,
|
||
|
|
AttachmentType::GLTexture, gl, size, hasAlpha, true),
|
||
|
|
mSurface(aSurface) {}
|
||
|
|
|
||
|
|
SharedSurface_DMABUF::~SharedSurface_DMABUF() {
|
||
|
|
if (!mGL || !mGL->MakeCurrent()) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
mSurface->ReleaseEGLImage();
|
||
|
|
}
|
||
|
|
|
||
|
|
void SharedSurface_DMABUF::ProducerReleaseImpl() {
|
||
|
|
mGL->MakeCurrent();
|
||
|
|
// We don't have a better sync mechanism here so use glFinish() at least.
|
||
|
|
mGL->fFinish();
|
||
|
|
}
|
||
|
|
|
||
|
|
bool SharedSurface_DMABUF::ToSurfaceDescriptor(
|
||
|
|
layers::SurfaceDescriptor* const out_descriptor) {
|
||
|
|
MOZ_ASSERT(mSurface);
|
||
|
|
return mSurface->Serialize(*out_descriptor);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace mozilla::gl
|