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chrome/common/io_surface_support_mac.cc

Index: chrome/common/io_surface_support_mac.cc
===================================================================
--- chrome/common/io_surface_support_mac.cc	(revision 0)
+++ chrome/common/io_surface_support_mac.cc	(revision 0)
@@ -0,0 +1,242 @@
+// 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() {
+}
+
Property changes on: chrome/common/io_surface_support_mac.cc
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Added: svn:eol-style
   + LF