Mac/gpu: Don't show uninitialized surfaces while resizing plugins / composited tabs.

app/surface/io_surface_support_mac.cc

 // 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 "app/surface/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 size_t (*IOSurfaceGetWidthPtr)(CFTypeRef io_surface);
+typedef size_t (*IOSurfaceGetHeightPtr)(CFTypeRef io_surface);
 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 size_t IOSurfaceGetWidth(CFTypeRef io_surface);
+  virtual size_t IOSurfaceGetHeight(CFTypeRef io_surface);
+
   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_;
+  IOSurfaceGetWidthPtr io_surface_get_width_;
+  IOSurfaceGetHeightPtr io_surface_get_height_;
   CGLTexImageIOSurface2DProcPtr cgl_tex_image_io_surface_2d_;
   bool initialized_successfully_;
 
   friend struct DefaultSingletonTraits<IOSurfaceSupportImpl>;
   DISALLOW_COPY_AND_ASSIGN(IOSurfaceSupportImpl);
 };
 
 static Singleton<IOSurfaceSupportImpl> sole_instance_;
 
 IOSurfaceSupportImpl* IOSurfaceSupportImpl::Initialize() {
@@ skipping 34 matching lines @@
 
 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);
 }
 
+size_t IOSurfaceSupportImpl::IOSurfaceGetWidth(CFTypeRef io_surface) {
+  return io_surface_get_width_(io_surface);
+}
+
+size_t IOSurfaceSupportImpl::IOSurfaceGetHeight(CFTypeRef io_surface) {
+  return io_surface_get_height_(io_surface);
+}
+
+
 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,
@@ skipping 12 matching lines @@
       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),
+      io_surface_get_width_(NULL),
+      io_surface_get_height_(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* io_surface_get_width_ptr =
+      dlsym(iosurface_handle_, "IOSurfaceGetWidth");
+  void* io_surface_get_height_ptr =
+      dlsym(iosurface_handle_, "IOSurfaceGetHeight");
   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 ||
+      !io_surface_get_width_ptr ||
+      !io_surface_get_height_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);
+  io_surface_get_width_ =
+      reinterpret_cast<IOSurfaceGetWidthPtr>(
+          io_surface_get_width_ptr);
+  io_surface_get_height_ =
+      reinterpret_cast<IOSurfaceGetHeightPtr>(
+          io_surface_get_height_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() {
 }