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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/ozone/platform/drm/gpu/gbm_surface_factory.h"
#include <gbm.h>
#include <utility>
#include "base/files/file_path.h"
#include "base/memory/ptr_util.h"
#include "build/build_config.h"
#include "third_party/khronos/EGL/egl.h"
#include "ui/gfx/buffer_format_util.h"
#include "ui/gfx/native_pixmap.h"
#include "ui/gl/gl_surface_egl.h"
#include "ui/ozone/common/egl_util.h"
#include "ui/ozone/common/gl_ozone_egl.h"
#include "ui/ozone/common/gl_ozone_osmesa.h"
#include "ui/ozone/platform/drm/common/drm_util.h"
#include "ui/ozone/platform/drm/gpu/drm_thread_proxy.h"
#include "ui/ozone/platform/drm/gpu/drm_window_proxy.h"
#include "ui/ozone/platform/drm/gpu/gbm_buffer.h"
#include "ui/ozone/platform/drm/gpu/gbm_surface.h"
#include "ui/ozone/platform/drm/gpu/gbm_surfaceless.h"
#include "ui/ozone/platform/drm/gpu/proxy_helpers.h"
#include "ui/ozone/platform/drm/gpu/screen_manager.h"
#include "ui/ozone/public/surface_ozone_canvas.h"
namespace ui {
namespace {
class GLOzoneEGLGbm : public GLOzoneEGL {
public:
GLOzoneEGLGbm(GbmSurfaceFactory* surface_factory,
DrmThreadProxy* drm_thread_proxy)
: surface_factory_(surface_factory),
drm_thread_proxy_(drm_thread_proxy) {}
~GLOzoneEGLGbm() override {}
scoped_refptr<gl::GLSurface> CreateViewGLSurface(
gfx::AcceleratedWidget window) override {
return gl::InitializeGLSurface(new GbmSurface(
surface_factory_, drm_thread_proxy_->CreateDrmWindowProxy(window),
window));
}
scoped_refptr<gl::GLSurface> CreateSurfacelessViewGLSurface(
gfx::AcceleratedWidget window) override {
return gl::InitializeGLSurface(new GbmSurfaceless(
surface_factory_, drm_thread_proxy_->CreateDrmWindowProxy(window),
window));
}
scoped_refptr<gl::GLSurface> CreateOffscreenGLSurface(
const gfx::Size& size) override {
DCHECK_EQ(size.width(), 0);
DCHECK_EQ(size.height(), 0);
return gl::InitializeGLSurface(new gl::SurfacelessEGL(size));
}
protected:
intptr_t GetNativeDisplay() override { return EGL_DEFAULT_DISPLAY; }
bool LoadGLES2Bindings(gl::GLImplementation impl) override {
return LoadDefaultEGLGLES2Bindings(impl);
}
private:
GbmSurfaceFactory* surface_factory_;
DrmThreadProxy* drm_thread_proxy_;
DISALLOW_COPY_AND_ASSIGN(GLOzoneEGLGbm);
};
} // namespace
GbmSurfaceFactory::GbmSurfaceFactory(DrmThreadProxy* drm_thread_proxy)
: egl_implementation_(
std::make_unique<GLOzoneEGLGbm>(this, drm_thread_proxy)),
osmesa_implementation_(std::make_unique<GLOzoneOSMesa>()),
drm_thread_proxy_(drm_thread_proxy) {}
GbmSurfaceFactory::~GbmSurfaceFactory() {
DCHECK(thread_checker_.CalledOnValidThread());
}
void GbmSurfaceFactory::RegisterSurface(gfx::AcceleratedWidget widget,
GbmSurfaceless* surface) {
DCHECK(thread_checker_.CalledOnValidThread());
widget_to_surface_map_.insert(std::make_pair(widget, surface));
}
void GbmSurfaceFactory::UnregisterSurface(gfx::AcceleratedWidget widget) {
DCHECK(thread_checker_.CalledOnValidThread());
widget_to_surface_map_.erase(widget);
}
GbmSurfaceless* GbmSurfaceFactory::GetSurface(
gfx::AcceleratedWidget widget) const {
DCHECK(thread_checker_.CalledOnValidThread());
auto it = widget_to_surface_map_.find(widget);
DCHECK(it != widget_to_surface_map_.end());
return it->second;
}
std::vector<gl::GLImplementation>
GbmSurfaceFactory::GetAllowedGLImplementations() {
DCHECK(thread_checker_.CalledOnValidThread());
return std::vector<gl::GLImplementation>{gl::kGLImplementationEGLGLES2,
gl::kGLImplementationOSMesaGL,
gl::kGLImplementationSwiftShaderGL};
}
GLOzone* GbmSurfaceFactory::GetGLOzone(gl::GLImplementation implementation) {
DCHECK(thread_checker_.CalledOnValidThread());
switch (implementation) {
case gl::kGLImplementationEGLGLES2:
return egl_implementation_.get();
case gl::kGLImplementationOSMesaGL:
return osmesa_implementation_.get();
default:
return nullptr;
}
}
std::unique_ptr<SurfaceOzoneCanvas> GbmSurfaceFactory::CreateCanvasForWidget(
gfx::AcceleratedWidget widget) {
DCHECK(thread_checker_.CalledOnValidThread());
LOG(ERROR) << "Software rendering mode is not supported with GBM platform";
return nullptr;
}
std::vector<gfx::BufferFormat> GbmSurfaceFactory::GetScanoutFormats(
gfx::AcceleratedWidget widget) {
std::vector<gfx::BufferFormat> scanout_formats;
drm_thread_proxy_->GetScanoutFormats(widget, &scanout_formats);
return scanout_formats;
}
scoped_refptr<gfx::NativePixmap> GbmSurfaceFactory::CreateNativePixmap(
gfx::AcceleratedWidget widget,
gfx::Size size,
gfx::BufferFormat format,
gfx::BufferUsage usage) {
#if !defined(OS_CHROMEOS)
// Support for memory mapping accelerated buffers requires some
// CrOS-specific patches (using dma-buf mmap API).
DCHECK(gfx::BufferUsage::SCANOUT == usage);
#endif
scoped_refptr<GbmBuffer> buffer =
drm_thread_proxy_->CreateBuffer(widget, size, format, usage);
if (!buffer.get())
return nullptr;
return base::MakeRefCounted<GbmPixmap>(this, buffer);
}
scoped_refptr<gfx::NativePixmap>
GbmSurfaceFactory::CreateNativePixmapFromHandleInternal(
gfx::AcceleratedWidget widget,
gfx::Size size,
gfx::BufferFormat format,
const gfx::NativePixmapHandle& handle) {
size_t num_planes = gfx::NumberOfPlanesForBufferFormat(format);
if (handle.planes.size() != num_planes ||
(handle.fds.size() != 1 && handle.fds.size() != num_planes)) {
return nullptr;
}
std::vector<base::ScopedFD> scoped_fds;
for (auto& fd : handle.fds) {
scoped_fds.emplace_back(fd.fd);
}
std::vector<gfx::NativePixmapPlane> planes;
for (const auto& plane : handle.planes) {
planes.push_back(plane);
}
scoped_refptr<GbmBuffer> buffer = drm_thread_proxy_->CreateBufferFromFds(
widget, size, format, std::move(scoped_fds), planes);
if (!buffer)
return nullptr;
return base::MakeRefCounted<GbmPixmap>(this, buffer);
}
scoped_refptr<gfx::NativePixmap>
GbmSurfaceFactory::CreateNativePixmapFromHandle(
gfx::AcceleratedWidget widget,
gfx::Size size,
gfx::BufferFormat format,
const gfx::NativePixmapHandle& handle) {
// Query the external service (if available), whether it recognizes this
// NativePixmapHandle, and whether it can provide a corresponding NativePixmap
// backing it. If so, the handle is consumed. Otherwise, the handle remains
// valid and can be further importer by standard means.
if (!get_protected_native_pixmap_callback_.is_null()) {
auto protected_pixmap = get_protected_native_pixmap_callback_.Run(handle);
if (protected_pixmap)
return protected_pixmap;
}
return CreateNativePixmapFromHandleInternal(widget, size, format, handle);
}
scoped_refptr<gfx::NativePixmap>
GbmSurfaceFactory::CreateNativePixmapForProtectedBufferHandle(
gfx::AcceleratedWidget widget,
gfx::Size size,
gfx::BufferFormat format,
const gfx::NativePixmapHandle& handle) {
// Create a new NativePixmap without querying the external service for any
// existing mappings.
return CreateNativePixmapFromHandleInternal(widget, size, format, handle);
}
void GbmSurfaceFactory::SetGetProtectedNativePixmapDelegate(
const GetProtectedNativePixmapCallback&
get_protected_native_pixmap_callback) {
get_protected_native_pixmap_callback_ = get_protected_native_pixmap_callback;
}
} // namespace ui
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