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/* -*- 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 "SharedSurfaceAndroidHardwareBuffer.h"
#include "GLBlitHelper.h"
#include "GLContextEGL.h"
#include "GLContextProvider.h"
#include "GLLibraryEGL.h"
#include "GLReadTexImageHelper.h"
#include "MozFramebuffer.h"
#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor, etc
#include "mozilla/layers/AndroidHardwareBuffer.h"
#include "ScopedGLHelpers.h"
#include "SharedSurface.h"
namespace mozilla {
namespace gl {
/*static*/
UniquePtr<SharedSurface_AndroidHardwareBuffer>
SharedSurface_AndroidHardwareBuffer::Create(const SharedSurfaceDesc& desc) {
const auto& gle = GLContextEGL::Cast(desc.gl);
const auto& egl = gle->mEgl;
RefPtr<layers::AndroidHardwareBuffer> buffer =
layers::AndroidHardwareBuffer::Create(desc.size,
gfx::SurfaceFormat::R8G8B8A8);
if (!buffer) {
return nullptr;
}
const EGLint attrs[] = {
LOCAL_EGL_IMAGE_PRESERVED,
LOCAL_EGL_TRUE,
LOCAL_EGL_NONE,
LOCAL_EGL_NONE,
};
EGLClientBuffer clientBuffer =
egl->mLib->fGetNativeClientBufferANDROID(buffer->GetNativeBuffer());
const auto image = egl->fCreateImage(
EGL_NO_CONTEXT, LOCAL_EGL_NATIVE_BUFFER_ANDROID, clientBuffer, attrs);
if (!image) {
return nullptr;
}
auto tex = MakeUnique<Texture>(*desc.gl);
{
ScopedBindTexture texture(gle, tex->name, LOCAL_GL_TEXTURE_2D);
gle->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MIN_FILTER,
LOCAL_GL_LINEAR);
gle->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MAG_FILTER,
LOCAL_GL_LINEAR);
gle->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_S,
LOCAL_GL_CLAMP_TO_EDGE);
gle->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_T,
LOCAL_GL_CLAMP_TO_EDGE);
gle->fEGLImageTargetTexture2D(LOCAL_GL_TEXTURE_2D, image);
egl->fDestroyImage(image);
}
const GLenum target = LOCAL_GL_TEXTURE_2D;
auto fb = MozFramebuffer::CreateForBacking(desc.gl, desc.size, 0, false,
target, tex->name);
if (!fb) {
return nullptr;
}
return AsUnique(new SharedSurface_AndroidHardwareBuffer(
desc, std::move(fb), std::move(tex), buffer));
}
SharedSurface_AndroidHardwareBuffer::SharedSurface_AndroidHardwareBuffer(
const SharedSurfaceDesc& desc, UniquePtr<MozFramebuffer> fb,
UniquePtr<Texture> tex, RefPtr<layers::AndroidHardwareBuffer> buffer)
: SharedSurface(desc, std::move(fb)),
mTex(std::move(tex)),
mAndroidHardwareBuffer(buffer) {}
SharedSurface_AndroidHardwareBuffer::~SharedSurface_AndroidHardwareBuffer() {
const auto& gl = mDesc.gl;
if (!gl || !gl->MakeCurrent()) {
return;
}
const auto& gle = GLContextEGL::Cast(gl);
const auto& egl = gle->mEgl;
if (mSync) {
egl->fDestroySync(mSync);
mSync = 0;
}
}
void SharedSurface_AndroidHardwareBuffer::ProducerReleaseImpl() {
const auto& gl = mDesc.gl;
if (!gl || !gl->MakeCurrent()) {
return;
}
const auto& gle = GLContextEGL::Cast(gl);
const auto& egl = gle->mEgl;
if (mSync) {
MOZ_ALWAYS_TRUE(egl->fDestroySync(mSync));
mSync = 0;
}
mSync = egl->fCreateSync(LOCAL_EGL_SYNC_NATIVE_FENCE_ANDROID, nullptr);
MOZ_ASSERT(mSync);
int rawFd = egl->fDupNativeFenceFDANDROID(mSync);
if (rawFd >= 0) {
auto fenceFd = ipc::FileDescriptor(UniqueFileHandle(rawFd));
mAndroidHardwareBuffer->SetAcquireFence(std::move(fenceFd));
}
gl->fFlush();
}
Maybe<layers::SurfaceDescriptor>
SharedSurface_AndroidHardwareBuffer::ToSurfaceDescriptor() {
// Create SurfaceDescriptor without a valid file descriptor.
// The valid file descriptor is created by
// SharedSurfaceTextureData::Serialize().
// When valid file descriptor is created in this function,
// It causes out of file descriptor in this process, since the function is
// called for each layer transaction.
return Some(layers::SurfaceDescriptorAndroidHardwareBuffer(
ipc::FileDescriptor(), mAndroidHardwareBuffer->mId,
mAndroidHardwareBuffer->mSize, mAndroidHardwareBuffer->mFormat));
}
void SharedSurface_AndroidHardwareBuffer::WaitForBufferOwnership() {
mAndroidHardwareBuffer->WaitForBufferOwnership();
ipc::FileDescriptor fenceFd =
mAndroidHardwareBuffer->GetAndResetReleaseFence();
if (!fenceFd.IsValid()) {
return;
}
const auto& gle = GLContextEGL::Cast(mDesc.gl);
const auto& egl = gle->mEgl;
auto rawFD = fenceFd.TakePlatformHandle();
const EGLint attribs[] = {LOCAL_EGL_SYNC_NATIVE_FENCE_FD_ANDROID, rawFD.get(),
LOCAL_EGL_NONE};
EGLSync sync = egl->fCreateSync(LOCAL_EGL_SYNC_NATIVE_FENCE_ANDROID, attribs);
if (!sync) {
gfxCriticalNote << "Failed to create EGLSync from fd";
return;
}
// Release fd here, since it is owned by EGLSync
Unused << rawFD.release();
egl->fClientWaitSync(sync, 0, LOCAL_EGL_FOREVER);
egl->fDestroySync(sync);
}
/*static*/
UniquePtr<SurfaceFactory_AndroidHardwareBuffer>
SurfaceFactory_AndroidHardwareBuffer::Create(GLContext& gl) {
const auto partialDesc = PartialSharedSurfaceDesc{
&gl,
SharedSurfaceType::AndroidHardwareBuffer,
layers::TextureType::AndroidHardwareBuffer,
true,
};
return AsUnique(new SurfaceFactory_AndroidHardwareBuffer(partialDesc));
}
} // namespace gl
} /* namespace mozilla */
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