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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 "base/file_descriptor_posix.h"
#include "content/common/gpu/media/va_surface.h"
#include "content/common/gpu/media/vaapi_drm_picture.h"
#include "content/common/gpu/media/vaapi_wrapper.h"
#include "third_party/libva/va/drm/va_drm.h"
#include "third_party/libva/va/va.h"
#include "third_party/libva/va/va_drmcommon.h"
#include "ui/gfx/gpu_memory_buffer.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_image_linux_dma_buffer.h"
#include "ui/gl/scoped_binders.h"
#include "ui/ozone/gpu/gpu_memory_buffer_factory_ozone_native_buffer.h"
#include "ui/ozone/public/native_pixmap.h"
#include "ui/ozone/public/ozone_platform.h"
#include "ui/ozone/public/surface_factory_ozone.h"
namespace content {
VaapiDrmPicture::VaapiDrmPicture(
VaapiWrapper* vaapi_wrapper,
const base::Callback<bool(void)>& make_context_current,
int32 picture_buffer_id,
uint32 texture_id,
const gfx::Size& size)
: VaapiPicture(picture_buffer_id, texture_id, size),
vaapi_wrapper_(vaapi_wrapper),
make_context_current_(make_context_current),
weak_this_factory_(this) {
}
VaapiDrmPicture::~VaapiDrmPicture() {
if (gl_image_ && make_context_current_.Run()) {
gl_image_->ReleaseTexImage(GL_TEXTURE_EXTERNAL_OES);
gl_image_->Destroy(true);
DCHECK_EQ(glGetError(), static_cast<GLenum>(GL_NO_ERROR));
}
}
scoped_refptr<VASurface> VaapiDrmPicture::CreateVASurfaceForPixmap(
scoped_refptr<ui::NativePixmap> pixmap,
gfx::Size pixmap_size) {
// Get the dmabuf of the created buffer.
int dmabuf_fd = pixmap->GetDmaBufFd();
if (dmabuf_fd < 0) {
LOG(ERROR) << "Failed to get dmabuf from an Ozone NativePixmap";
return nullptr;
}
int dmabuf_pitch = pixmap->GetDmaBufPitch();
// Create a VASurface out of the created buffer using the dmabuf.
VASurfaceAttribExternalBuffers va_attrib_extbuf;
memset(&va_attrib_extbuf, 0, sizeof(va_attrib_extbuf));
va_attrib_extbuf.pixel_format = VA_FOURCC_BGRX;
va_attrib_extbuf.width = pixmap_size.width();
va_attrib_extbuf.height = pixmap_size.height();
va_attrib_extbuf.data_size = pixmap_size.height() * dmabuf_pitch;
va_attrib_extbuf.num_planes = 1;
va_attrib_extbuf.pitches[0] = dmabuf_pitch;
va_attrib_extbuf.offsets[0] = 0;
va_attrib_extbuf.buffers = reinterpret_cast<unsigned long*>(&dmabuf_fd);
va_attrib_extbuf.num_buffers = 1;
va_attrib_extbuf.flags = 0;
va_attrib_extbuf.private_data = NULL;
std::vector<VASurfaceAttrib> va_attribs;
va_attribs.resize(2);
va_attribs[0].type = VASurfaceAttribMemoryType;
va_attribs[0].flags = VA_SURFACE_ATTRIB_SETTABLE;
va_attribs[0].value.type = VAGenericValueTypeInteger;
va_attribs[0].value.value.i = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME;
va_attribs[1].type = VASurfaceAttribExternalBufferDescriptor;
va_attribs[1].flags = VA_SURFACE_ATTRIB_SETTABLE;
va_attribs[1].value.type = VAGenericValueTypePointer;
va_attribs[1].value.value.p = &va_attrib_extbuf;
scoped_refptr<VASurface> va_surface = vaapi_wrapper_->CreateUnownedSurface(
VA_RT_FORMAT_RGB32, pixmap_size, va_attribs);
if (!va_surface) {
LOG(ERROR) << "Failed to create VASurface for an Ozone NativePixmap";
return nullptr;
}
return va_surface;
}
scoped_refptr<ui::NativePixmap> VaapiDrmPicture::CreateNativePixmap(
gfx::Size size) {
ui::OzonePlatform* platform = ui::OzonePlatform::GetInstance();
ui::SurfaceFactoryOzone* factory = platform->GetSurfaceFactoryOzone();
// Create a buffer from Ozone.
return factory->CreateNativePixmap(gfx::kNullAcceleratedWidget, size,
ui::SurfaceFactoryOzone::BGRA_8888,
ui::SurfaceFactoryOzone::SCANOUT);
}
bool VaapiDrmPicture::Initialize() {
// We want to create a VASurface and an EGLImage out of the same
// memory buffer, so we can output decoded pictures to it using
// VAAPI and also use it to paint with GL.
pixmap_ = CreateNativePixmap(size());
if (!pixmap_) {
LOG(ERROR) << "Failed creating an Ozone NativePixmap";
return false;
}
va_surface_ = CreateVASurfaceForPixmap(pixmap_, size());
if (!va_surface_) {
LOG(ERROR) << "Failed creating VASurface for NativePixmap";
return false;
}
// Weak pointers can only bind to methods without return values,
// hence we cannot bind ScalePixmap here. Instead we use a
// static function to solve this problem.
pixmap_->SetScalingCallback(base::Bind(&VaapiDrmPicture::CallScalePixmap,
weak_this_factory_.GetWeakPtr()));
if (!make_context_current_.Run())
return false;
gfx::ScopedTextureBinder texture_binder(GL_TEXTURE_EXTERNAL_OES,
texture_id());
gl_image_ = ui::GpuMemoryBufferFactoryOzoneNativeBuffer::CreateImageForPixmap(
pixmap_, size(), gfx::GpuMemoryBuffer::BGRA_8888, GL_BGRA_EXT);
if (!gl_image_) {
LOG(ERROR) << "Failed to create GLImage";
return false;
}
if (!gl_image_->BindTexImage(GL_TEXTURE_EXTERNAL_OES)) {
LOG(ERROR) << "Failed to bind texture to GLImage";
return false;
}
return true;
}
bool VaapiDrmPicture::DownloadFromSurface(
const scoped_refptr<VASurface>& va_surface) {
return vaapi_wrapper_->BlitSurface(va_surface->id(), va_surface->size(),
va_surface_->id(), va_surface_->size());
}
// static
scoped_refptr<ui::NativePixmap> VaapiDrmPicture::CallScalePixmap(
base::WeakPtr<VaapiDrmPicture> weak_ptr,
gfx::Size new_size) {
if (!weak_ptr.get()) {
LOG(ERROR) << "Failed scaling NativePixmap as scaling "
"unit(VaapiDrmPicture) is deleted";
return nullptr;
}
return weak_ptr->ScalePixmap(new_size);
}
scoped_refptr<ui::NativePixmap> VaapiDrmPicture::ScalePixmap(
gfx::Size new_size) {
if (!scaled_va_surface_.get() || scaled_va_surface_->size() != new_size) {
scaled_pixmap_ = CreateNativePixmap(new_size);
if (!scaled_pixmap_) {
LOG(ERROR) << "Failed creating an Ozone NativePixmap for scaling";
scaled_va_surface_ = nullptr;
return nullptr;
}
scaled_va_surface_ = CreateVASurfaceForPixmap(scaled_pixmap_, new_size);
if (!scaled_va_surface_) {
LOG(ERROR) << "Failed creating VA Surface for pixmap";
scaled_pixmap_ = nullptr;
return nullptr;
}
}
DCHECK(scaled_pixmap_);
bool vpp_result = vaapi_wrapper_->BlitSurface(
va_surface_->id(), va_surface_->size(), scaled_va_surface_->id(),
scaled_va_surface_->size());
if (!vpp_result) {
LOG(ERROR) << "Failed scaling NativePixmap";
scaled_pixmap_ = nullptr;
scaled_va_surface_ = nullptr;
return nullptr;
}
return scaled_pixmap_;
}
scoped_refptr<gfx::GLImage> VaapiDrmPicture::GetImageToBind() {
return gl_image_;
}
bool VaapiDrmPicture::AllowOverlay() const {
return true;
}
} // namespace
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