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// Copyright (c) 2010 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 <dlfcn.h>
#include "base/singleton.h"
#include "chrome/common/io_surface_support_mac.h"
typedef CFTypeRef (*IOSurfaceCreateProcPtr)(CFDictionaryRef properties);
typedef uint32 (*IOSurfaceGetIDProcPtr)(CFTypeRef io_surface);
typedef CFTypeRef (*IOSurfaceLookupProcPtr)(uint32 io_surface_id);
typedef mach_port_t (*IOSurfaceCreateMachPortProcPtr)(CFTypeRef io_surface);
typedef CFTypeRef (*IOSurfaceLookupFromMachPortProcPtr)(mach_port_t port);
typedef CGLError (*CGLTexImageIOSurface2DProcPtr)(CGLContextObj ctx,
GLenum target,
GLenum internal_format,
GLsizei width,
GLsizei height,
GLenum format,
GLenum type,
CFTypeRef io_surface,
GLuint plane);
class IOSurfaceSupportImpl : public IOSurfaceSupport {
public:
static IOSurfaceSupportImpl* Initialize();
bool InitializedSuccessfully() {
return initialized_successfully_;
}
virtual CFStringRef GetKIOSurfaceWidth();
virtual CFStringRef GetKIOSurfaceHeight();
virtual CFStringRef GetKIOSurfaceBytesPerElement();
virtual CFStringRef GetKIOSurfaceIsGlobal();
virtual CFTypeRef IOSurfaceCreate(CFDictionaryRef properties);
virtual uint32 IOSurfaceGetID(CFTypeRef io_surface);
virtual CFTypeRef IOSurfaceLookup(uint32 io_surface_id);
virtual mach_port_t IOSurfaceCreateMachPort(CFTypeRef io_surface);
virtual CFTypeRef IOSurfaceLookupFromMachPort(mach_port_t port);
virtual CGLError CGLTexImageIOSurface2D(CGLContextObj ctx,
GLenum target,
GLenum internal_format,
GLsizei width,
GLsizei height,
GLenum format,
GLenum type,
CFTypeRef io_surface,
GLuint plane);
private:
IOSurfaceSupportImpl();
~IOSurfaceSupportImpl();
void* iosurface_handle_;
void* opengl_handle_;
CFStringRef k_io_surface_width_;
CFStringRef k_io_surface_height_;
CFStringRef k_io_surface_bytes_per_element_;
CFStringRef k_io_surface_is_global_;
IOSurfaceCreateProcPtr io_surface_create_;
IOSurfaceGetIDProcPtr io_surface_get_id_;
IOSurfaceLookupProcPtr io_surface_lookup_;
IOSurfaceCreateMachPortProcPtr io_surface_create_mach_port_;
IOSurfaceLookupFromMachPortProcPtr io_surface_lookup_from_mach_port_;
CGLTexImageIOSurface2DProcPtr cgl_tex_image_io_surface_2d_;
bool initialized_successfully_;
friend struct DefaultSingletonTraits<IOSurfaceSupportImpl>;
DISALLOW_EVIL_CONSTRUCTORS(IOSurfaceSupportImpl);
};
static Singleton<IOSurfaceSupportImpl> sole_instance_;
IOSurfaceSupportImpl* IOSurfaceSupportImpl::Initialize() {
IOSurfaceSupportImpl* impl = sole_instance_.get();
if (impl->InitializedSuccessfully())
return impl;
return NULL;
}
CFStringRef IOSurfaceSupportImpl::GetKIOSurfaceWidth() {
return k_io_surface_width_;
}
CFStringRef IOSurfaceSupportImpl::GetKIOSurfaceHeight() {
return k_io_surface_height_;
}
CFStringRef IOSurfaceSupportImpl::GetKIOSurfaceBytesPerElement() {
return k_io_surface_bytes_per_element_;
}
CFStringRef IOSurfaceSupportImpl::GetKIOSurfaceIsGlobal() {
return k_io_surface_is_global_;
}
CFTypeRef IOSurfaceSupportImpl::IOSurfaceCreate(CFDictionaryRef properties) {
return io_surface_create_(properties);
}
uint32 IOSurfaceSupportImpl::IOSurfaceGetID(
CFTypeRef io_surface) {
return io_surface_get_id_(io_surface);
}
CFTypeRef IOSurfaceSupportImpl::IOSurfaceLookup(uint32 io_surface_id) {
return io_surface_lookup_(io_surface_id);
}
mach_port_t IOSurfaceSupportImpl::IOSurfaceCreateMachPort(
CFTypeRef io_surface) {
return io_surface_create_mach_port_(io_surface);
}
CFTypeRef IOSurfaceSupportImpl::IOSurfaceLookupFromMachPort(mach_port_t port) {
return io_surface_lookup_from_mach_port_(port);
}
CGLError IOSurfaceSupportImpl::CGLTexImageIOSurface2D(CGLContextObj ctx,
GLenum target,
GLenum internal_format,
GLsizei width,
GLsizei height,
GLenum format,
GLenum type,
CFTypeRef io_surface,
GLuint plane) {
return cgl_tex_image_io_surface_2d_(ctx,
target,
internal_format,
width,
height,
format,
type,
io_surface,
plane);
}
IOSurfaceSupportImpl::IOSurfaceSupportImpl()
: iosurface_handle_(NULL),
opengl_handle_(NULL),
k_io_surface_width_(NULL),
k_io_surface_height_(NULL),
k_io_surface_bytes_per_element_(NULL),
k_io_surface_is_global_(NULL),
io_surface_create_(NULL),
io_surface_get_id_(NULL),
io_surface_lookup_(NULL),
io_surface_create_mach_port_(NULL),
io_surface_lookup_from_mach_port_(NULL),
cgl_tex_image_io_surface_2d_(NULL),
initialized_successfully_(false) {
iosurface_handle_ = dlopen(
"/System/Library/Frameworks/IOSurface.framework/IOSurface",
RTLD_LAZY | RTLD_LOCAL);
if (!iosurface_handle_)
return;
opengl_handle_ = dlopen(
"/System/Library/Frameworks/OpenGL.framework/OpenGL",
RTLD_LAZY | RTLD_LOCAL);
if (!opengl_handle_) {
dlclose(iosurface_handle_);
iosurface_handle_ = NULL;
return;
}
void* surface_width_ptr = dlsym(iosurface_handle_, "kIOSurfaceWidth");
void* surface_height_ptr = dlsym(iosurface_handle_, "kIOSurfaceHeight");
void* surface_bytes_per_element_ptr =
dlsym(iosurface_handle_, "kIOSurfaceBytesPerElement");
void* surface_is_global_ptr =
dlsym(iosurface_handle_, "kIOSurfaceIsGlobal");
void* surface_create_ptr = dlsym(iosurface_handle_, "IOSurfaceCreate");
void* surface_get_id_ptr = dlsym(iosurface_handle_, "IOSurfaceGetID");
void* surface_lookup_ptr = dlsym(iosurface_handle_, "IOSurfaceLookup");
void* surface_create_mach_port_ptr =
dlsym(iosurface_handle_, "IOSurfaceCreateMachPort");
void* surface_lookup_from_mach_port_ptr =
dlsym(iosurface_handle_, "IOSurfaceLookupFromMachPort");
void* tex_image_io_surface_2d_ptr =
dlsym(opengl_handle_, "CGLTexImageIOSurface2D");
if (!surface_width_ptr ||
!surface_height_ptr ||
!surface_bytes_per_element_ptr ||
!surface_is_global_ptr ||
!surface_create_ptr ||
!surface_get_id_ptr ||
!surface_lookup_ptr ||
!surface_create_mach_port_ptr ||
!surface_lookup_from_mach_port_ptr ||
!tex_image_io_surface_2d_ptr) {
dlclose(iosurface_handle_);
iosurface_handle_ = NULL;
dlclose(opengl_handle_);
opengl_handle_ = NULL;
return;
}
k_io_surface_width_ = *static_cast<CFStringRef*>(surface_width_ptr);
k_io_surface_height_ = *static_cast<CFStringRef*>(surface_height_ptr);
k_io_surface_bytes_per_element_ =
*static_cast<CFStringRef*>(surface_bytes_per_element_ptr);
k_io_surface_is_global_ = *static_cast<CFStringRef*>(surface_is_global_ptr);
io_surface_create_ = reinterpret_cast<IOSurfaceCreateProcPtr>(
surface_create_ptr);
io_surface_get_id_ =
reinterpret_cast<IOSurfaceGetIDProcPtr>(surface_get_id_ptr);
io_surface_lookup_ =
reinterpret_cast<IOSurfaceLookupProcPtr>(surface_lookup_ptr);
io_surface_create_mach_port_ =
reinterpret_cast<IOSurfaceCreateMachPortProcPtr>(
surface_create_mach_port_ptr);
io_surface_lookup_from_mach_port_ =
reinterpret_cast<IOSurfaceLookupFromMachPortProcPtr>(
surface_lookup_from_mach_port_ptr);
cgl_tex_image_io_surface_2d_ =
reinterpret_cast<CGLTexImageIOSurface2DProcPtr>(
tex_image_io_surface_2d_ptr);
initialized_successfully_ = true;
}
IOSurfaceSupportImpl::~IOSurfaceSupportImpl() {
if (iosurface_handle_)
dlclose(iosurface_handle_);
if (opengl_handle_)
dlclose(opengl_handle_);
}
IOSurfaceSupport* IOSurfaceSupport::Initialize() {
return IOSurfaceSupportImpl::Initialize();
}
IOSurfaceSupport::IOSurfaceSupport() {
}
IOSurfaceSupport::~IOSurfaceSupport() {
}
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