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// Copyright 2015 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/cast/surface_factory_cast.h"
#include "base/callback_helpers.h"
#include "chromecast/public/cast_egl_platform.h"
#include "chromecast/public/graphics_types.h"
#include "ui/gfx/geometry/quad_f.h"
#include "ui/ozone/platform/cast/surface_ozone_egl_cast.h"
#include "ui/ozone/public/native_pixmap.h"
using chromecast::CastEglPlatform;
namespace ui {
namespace {
chromecast::Size FromGfxSize(const gfx::Size& size) {
return chromecast::Size(size.width(), size.height());
}
// Initial display size to create, needed before first window is created.
gfx::Size GetInitialDisplaySize() {
return gfx::Size(1280, 720);
}
// Hard lower bound on display resolution
gfx::Size GetMinDisplaySize() {
return gfx::Size(1280, 720);
}
} // namespace
SurfaceFactoryCast::SurfaceFactoryCast(scoped_ptr<CastEglPlatform> egl_platform)
: state_(kUninitialized),
destroy_window_pending_state_(kNoDestroyPending),
display_type_(0),
have_display_type_(false),
window_(0),
display_size_(GetInitialDisplaySize()),
new_display_size_(GetInitialDisplaySize()),
egl_platform_(egl_platform.Pass()) {
}
SurfaceFactoryCast::~SurfaceFactoryCast() {
DestroyDisplayTypeAndWindow();
}
void SurfaceFactoryCast::InitializeHardware() {
if (state_ == kInitialized) {
return;
}
CHECK_EQ(state_, kUninitialized);
if (egl_platform_->InitializeHardware()) {
state_ = kInitialized;
} else {
ShutdownHardware();
state_ = kFailed;
}
}
void SurfaceFactoryCast::ShutdownHardware() {
DestroyDisplayTypeAndWindow();
egl_platform_->ShutdownHardware();
state_ = kUninitialized;
}
intptr_t SurfaceFactoryCast::GetNativeDisplay() {
CreateDisplayTypeAndWindowIfNeeded();
return reinterpret_cast<intptr_t>(display_type_);
}
void SurfaceFactoryCast::CreateDisplayTypeAndWindowIfNeeded() {
if (state_ == kUninitialized) {
InitializeHardware();
}
if (new_display_size_ != display_size_) {
DestroyDisplayTypeAndWindow();
display_size_ = new_display_size_;
}
DCHECK_EQ(state_, kInitialized);
if (!have_display_type_) {
chromecast::Size create_size = FromGfxSize(display_size_);
display_type_ = egl_platform_->CreateDisplayType(create_size);
have_display_type_ = true;
window_ = egl_platform_->CreateWindow(display_type_, create_size);
if (!window_) {
DestroyDisplayTypeAndWindow();
state_ = kFailed;
LOG(FATAL) << "Create EGLNativeWindowType(" << display_size_.ToString()
<< ") failed.";
}
}
}
intptr_t SurfaceFactoryCast::GetNativeWindow() {
CreateDisplayTypeAndWindowIfNeeded();
return reinterpret_cast<intptr_t>(window_);
}
bool SurfaceFactoryCast::ResizeDisplay(gfx::Size size) {
// set size to at least 1280x720 even if passed 1x1
size.SetToMax(GetMinDisplaySize());
if (have_display_type_ && size != display_size_) {
DestroyDisplayTypeAndWindow();
}
display_size_ = size;
return true;
}
void SurfaceFactoryCast::DestroyDisplayTypeAndWindow() {
if (window_) {
egl_platform_->DestroyWindow(window_);
window_ = 0;
}
if (have_display_type_) {
egl_platform_->DestroyDisplayType(display_type_);
display_type_ = 0;
have_display_type_ = false;
}
}
scoped_ptr<SurfaceOzoneEGL> SurfaceFactoryCast::CreateEGLSurfaceForWidget(
gfx::AcceleratedWidget widget) {
new_display_size_ = gfx::Size(widget >> 16, widget & 0xFFFF);
new_display_size_.SetToMax(GetMinDisplaySize());
destroy_window_pending_state_ = kSurfaceExists;
SendRelinquishResponse();
return make_scoped_ptr<SurfaceOzoneEGL>(new SurfaceOzoneEglCast(this));
}
void SurfaceFactoryCast::SetToRelinquishDisplay(const base::Closure& callback) {
// This is called in response to a RelinquishDisplay message from the
// browser task. This call may come before or after the display surface
// is actually destroyed.
relinquish_display_callback_ = callback;
switch (destroy_window_pending_state_) {
case kNoDestroyPending:
case kSurfaceDestroyedRecently:
DestroyDisplayTypeAndWindow();
SendRelinquishResponse();
destroy_window_pending_state_ = kNoDestroyPending;
break;
case kSurfaceExists:
destroy_window_pending_state_ = kWindowDestroyPending;
break;
case kWindowDestroyPending:
break;
default:
NOTREACHED();
}
}
void SurfaceFactoryCast::ChildDestroyed() {
if (destroy_window_pending_state_ == kWindowDestroyPending) {
DestroyDisplayTypeAndWindow();
SendRelinquishResponse();
destroy_window_pending_state_ = kNoDestroyPending;
} else {
destroy_window_pending_state_ = kSurfaceDestroyedRecently;
}
}
void SurfaceFactoryCast::SendRelinquishResponse() {
if (!relinquish_display_callback_.is_null()) {
base::ResetAndReturn(&relinquish_display_callback_).Run();
}
}
const int32* SurfaceFactoryCast::GetEGLSurfaceProperties(
const int32* desired_list) {
return egl_platform_->GetEGLSurfaceProperties(desired_list);
}
scoped_refptr<NativePixmap> SurfaceFactoryCast::CreateNativePixmap(
gfx::AcceleratedWidget w,
gfx::Size size,
BufferFormat format,
BufferUsage usage) {
class CastPixmap : public NativePixmap {
public:
CastPixmap() {}
void* GetEGLClientBuffer() override {
// TODO(halliwell): try to implement this through CastEglPlatform.
return nullptr;
}
int GetDmaBufFd() override { return 0; }
int GetDmaBufPitch() override { return 0; }
bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
int plane_z_order,
gfx::OverlayTransform plane_transform,
const gfx::Rect& display_bounds,
const gfx::RectF& crop_rect) override {
return true;
}
void SetScalingCallback(const ScalingCallback& scaling_callback) override {}
scoped_refptr<NativePixmap> GetScaledPixmap(gfx::Size new_size) override {
return nullptr;
}
private:
~CastPixmap() override {}
DISALLOW_COPY_AND_ASSIGN(CastPixmap);
};
return make_scoped_refptr(new CastPixmap);
}
bool SurfaceFactoryCast::LoadEGLGLES2Bindings(
AddGLLibraryCallback add_gl_library,
SetGLGetProcAddressProcCallback set_gl_get_proc_address) {
if (state_ != kInitialized) {
InitializeHardware();
if (state_ != kInitialized) {
return false;
}
}
void* lib_egl = egl_platform_->GetEglLibrary();
void* lib_gles2 = egl_platform_->GetGles2Library();
GLGetProcAddressProc gl_proc = egl_platform_->GetGLProcAddressProc();
if (!lib_egl || !lib_gles2 || !gl_proc) {
return false;
}
set_gl_get_proc_address.Run(gl_proc);
add_gl_library.Run(lib_egl);
add_gl_library.Run(lib_gles2);
return true;
}
} // namespace ui
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