DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Header

Mercurial (b6057e17f856)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
// vim:set ts=2 sts=2 sw=2 et cin:
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "MacIOSurface.h"
#include <OpenGL/gl.h>
#include <QuartzCore/QuartzCore.h>
#include <dlfcn.h>
#include "mozilla/RefPtr.h"
#include "mozilla/Assertions.h"

using namespace mozilla;
// IOSurface signatures
#define IOSURFACE_FRAMEWORK_PATH \
  "/System/Library/Frameworks/IOSurface.framework/IOSurface"
#define OPENGL_FRAMEWORK_PATH \
  "/System/Library/Frameworks/OpenGL.framework/OpenGL"
#define COREGRAPHICS_FRAMEWORK_PATH \
  "/System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreGraphics.framework/CoreGraphics"



#define GET_CONST(const_name) \
  ((CFStringRef*) dlsym(sIOSurfaceFramework, const_name))
#define GET_IOSYM(dest,sym_name) \
  (typeof(dest)) dlsym(sIOSurfaceFramework, sym_name)
#define GET_CGLSYM(dest,sym_name) \
  (typeof(dest)) dlsym(sOpenGLFramework, sym_name)
#define GET_CGSYM(dest,sym_name) \
  (typeof(dest)) dlsym(sCoreGraphicsFramework, sym_name)

MacIOSurfaceLib::LibraryUnloader MacIOSurfaceLib::sLibraryUnloader;
bool                          MacIOSurfaceLib::isLoaded = false;
void*                         MacIOSurfaceLib::sIOSurfaceFramework;
void*                         MacIOSurfaceLib::sOpenGLFramework;
void*                         MacIOSurfaceLib::sCoreGraphicsFramework;
IOSurfaceCreateFunc           MacIOSurfaceLib::sCreate;
IOSurfaceGetIDFunc            MacIOSurfaceLib::sGetID;
IOSurfaceLookupFunc           MacIOSurfaceLib::sLookup;
IOSurfaceGetBaseAddressFunc   MacIOSurfaceLib::sGetBaseAddress;
IOSurfaceGetWidthFunc         MacIOSurfaceLib::sWidth;
IOSurfaceGetHeightFunc        MacIOSurfaceLib::sHeight;
IOSurfaceGetBytesPerRowFunc   MacIOSurfaceLib::sBytesPerRow;
IOSurfaceLockFunc             MacIOSurfaceLib::sLock;
IOSurfaceUnlockFunc           MacIOSurfaceLib::sUnlock;
CGLTexImageIOSurface2DFunc    MacIOSurfaceLib::sTexImage;
IOSurfaceContextCreateFunc    MacIOSurfaceLib::sIOSurfaceContextCreate;
IOSurfaceContextCreateImageFunc   MacIOSurfaceLib::sIOSurfaceContextCreateImage;
IOSurfaceContextGetSurfaceFunc    MacIOSurfaceLib::sIOSurfaceContextGetSurface;
unsigned int                  (*MacIOSurfaceLib::sCGContextGetTypePtr) (CGContextRef) = nullptr;

CFStringRef                   MacIOSurfaceLib::kPropWidth;
CFStringRef                   MacIOSurfaceLib::kPropHeight;
CFStringRef                   MacIOSurfaceLib::kPropBytesPerElem;
CFStringRef                   MacIOSurfaceLib::kPropBytesPerRow;
CFStringRef                   MacIOSurfaceLib::kPropIsGlobal;

bool MacIOSurfaceLib::isInit() {
  // Guard against trying to reload the library
  // if it is not available.
  if (!isLoaded)
    LoadLibrary();
  MOZ_ASSERT(sIOSurfaceFramework);
  return sIOSurfaceFramework;
}

IOSurfacePtr MacIOSurfaceLib::IOSurfaceCreate(CFDictionaryRef properties) {
  return sCreate(properties);
}

IOSurfacePtr MacIOSurfaceLib::IOSurfaceLookup(IOSurfaceID aIOSurfaceID) {
  return sLookup(aIOSurfaceID);
}

IOSurfaceID MacIOSurfaceLib::IOSurfaceGetID(IOSurfacePtr aIOSurfacePtr) {
  return sGetID(aIOSurfacePtr);
}

void* MacIOSurfaceLib::IOSurfaceGetBaseAddress(IOSurfacePtr aIOSurfacePtr) {
  return sGetBaseAddress(aIOSurfacePtr);
}

size_t MacIOSurfaceLib::IOSurfaceGetWidth(IOSurfacePtr aIOSurfacePtr) {
  return sWidth(aIOSurfacePtr);
}

size_t MacIOSurfaceLib::IOSurfaceGetHeight(IOSurfacePtr aIOSurfacePtr) {
  return sHeight(aIOSurfacePtr);
}

size_t MacIOSurfaceLib::IOSurfaceGetBytesPerRow(IOSurfacePtr aIOSurfacePtr) {
  return sBytesPerRow(aIOSurfacePtr);
}

IOReturn MacIOSurfaceLib::IOSurfaceLock(IOSurfacePtr aIOSurfacePtr, 
                                       uint32_t options, uint32_t *seed) {
  return sLock(aIOSurfacePtr, options, seed);
}

IOReturn MacIOSurfaceLib::IOSurfaceUnlock(IOSurfacePtr aIOSurfacePtr, 
                                         uint32_t options, uint32_t *seed) {
  return sUnlock(aIOSurfacePtr, options, seed);
}

CGLError MacIOSurfaceLib::CGLTexImageIOSurface2D(CGLContextObj ctxt,
                             GLenum target, GLenum internalFormat,
                             GLsizei width, GLsizei height,
                             GLenum format, GLenum type,
                             IOSurfacePtr ioSurface, GLuint plane) {
  return sTexImage(ctxt, target, internalFormat, width, height,
                   format, type, ioSurface, plane);
}

CGContextRef MacIOSurfaceLib::IOSurfaceContextCreate(IOSurfacePtr aIOSurfacePtr,
                             unsigned aWidth, unsigned aHeight,
                             unsigned aBitsPerComponent, unsigned aBytes,
                             CGColorSpaceRef aColorSpace, CGBitmapInfo bitmapInfo) {
  if (!sIOSurfaceContextCreate)
    return nullptr;
  return sIOSurfaceContextCreate(aIOSurfacePtr, aWidth, aHeight, aBitsPerComponent, aBytes, aColorSpace, bitmapInfo);
}

CGImageRef MacIOSurfaceLib::IOSurfaceContextCreateImage(CGContextRef aContext) {
  if (!sIOSurfaceContextCreateImage)
    return nullptr;
  return sIOSurfaceContextCreateImage(aContext);
}

IOSurfacePtr MacIOSurfaceLib::IOSurfaceContextGetSurface(CGContextRef aContext) {
  if (!sIOSurfaceContextGetSurface)
    return nullptr;
  return sIOSurfaceContextGetSurface(aContext);
}

CFStringRef MacIOSurfaceLib::GetIOConst(const char* symbole) {
  CFStringRef *address = (CFStringRef*)dlsym(sIOSurfaceFramework, symbole);
  if (!address)
    return nullptr;

  return *address;
}

void MacIOSurfaceLib::LoadLibrary() {
  if (isLoaded) {
    return;
  } 
  isLoaded = true;
  sIOSurfaceFramework = dlopen(IOSURFACE_FRAMEWORK_PATH,
                            RTLD_LAZY | RTLD_LOCAL);
  sOpenGLFramework = dlopen(OPENGL_FRAMEWORK_PATH,
                            RTLD_LAZY | RTLD_LOCAL);

  sCoreGraphicsFramework = dlopen(COREGRAPHICS_FRAMEWORK_PATH,
                            RTLD_LAZY | RTLD_LOCAL);
  if (!sIOSurfaceFramework || !sOpenGLFramework || !sCoreGraphicsFramework) {
    if (sIOSurfaceFramework)
      dlclose(sIOSurfaceFramework);
    if (sOpenGLFramework)
      dlclose(sOpenGLFramework);
    if (sCoreGraphicsFramework)
      dlclose(sCoreGraphicsFramework);
    sIOSurfaceFramework = nullptr;
    sOpenGLFramework = nullptr;
    sCoreGraphicsFramework = nullptr;
    return;
  }

  kPropWidth = GetIOConst("kIOSurfaceWidth");
  kPropHeight = GetIOConst("kIOSurfaceHeight");
  kPropBytesPerElem = GetIOConst("kIOSurfaceBytesPerElement");
  kPropBytesPerRow = GetIOConst("kIOSurfaceBytesPerRow");
  kPropIsGlobal = GetIOConst("kIOSurfaceIsGlobal");
  sCreate = GET_IOSYM(sCreate, "IOSurfaceCreate");
  sGetID  = GET_IOSYM(sGetID,  "IOSurfaceGetID");
  sWidth = GET_IOSYM(sWidth, "IOSurfaceGetWidth");
  sHeight = GET_IOSYM(sHeight, "IOSurfaceGetHeight");
  sBytesPerRow = GET_IOSYM(sBytesPerRow, "IOSurfaceGetBytesPerRow");
  sLookup = GET_IOSYM(sLookup, "IOSurfaceLookup");
  sLock = GET_IOSYM(sLock, "IOSurfaceLock");
  sUnlock = GET_IOSYM(sUnlock, "IOSurfaceUnlock");
  sGetBaseAddress = GET_IOSYM(sGetBaseAddress, "IOSurfaceGetBaseAddress");
  sTexImage = GET_CGLSYM(sTexImage, "CGLTexImageIOSurface2D");
  sCGContextGetTypePtr = (unsigned int (*)(CGContext*))dlsym(RTLD_DEFAULT, "CGContextGetType");

  // Optional symbols
  sIOSurfaceContextCreate = GET_CGSYM(sIOSurfaceContextCreate, "CGIOSurfaceContextCreate");
  sIOSurfaceContextCreateImage = GET_CGSYM(sIOSurfaceContextCreateImage, "CGIOSurfaceContextCreateImage");
  sIOSurfaceContextGetSurface = GET_CGSYM(sIOSurfaceContextGetSurface, "CGIOSurfaceContextGetSurface");

  if (!sCreate || !sGetID || !sLookup || !sTexImage || !sGetBaseAddress ||
      !kPropWidth || !kPropHeight || !kPropBytesPerElem || !kPropIsGlobal ||
      !sLock || !sUnlock || !sWidth || !sHeight || !kPropBytesPerRow ||
      !sBytesPerRow) {
    CloseLibrary();
  }
}

void MacIOSurfaceLib::CloseLibrary() {
  if (sIOSurfaceFramework) {
    dlclose(sIOSurfaceFramework);
  }
  if (sOpenGLFramework) {
    dlclose(sOpenGLFramework);
  }
  sIOSurfaceFramework = nullptr;
  sOpenGLFramework = nullptr;
}

MacIOSurface::~MacIOSurface() {
  CFRelease(mIOSurfacePtr);
}

TemporaryRef<MacIOSurface> MacIOSurface::CreateIOSurface(int aWidth, int aHeight,
                                                         double aContentsScaleFactor,
                                                         bool aHasAlpha) {
  if (!MacIOSurfaceLib::isInit() || aContentsScaleFactor <= 0)
    return nullptr;

  CFMutableDictionaryRef props = ::CFDictionaryCreateMutable(
                      kCFAllocatorDefault, 4,
                      &kCFTypeDictionaryKeyCallBacks,
                      &kCFTypeDictionaryValueCallBacks);
  if (!props)
    return nullptr;

  int32_t bytesPerElem = 4;
  size_t intScaleFactor = ceil(aContentsScaleFactor);
  aWidth *= intScaleFactor;
  aHeight *= intScaleFactor;
  CFNumberRef cfWidth = ::CFNumberCreate(nullptr, kCFNumberSInt32Type, &aWidth);
  CFNumberRef cfHeight = ::CFNumberCreate(nullptr, kCFNumberSInt32Type, &aHeight);
  CFNumberRef cfBytesPerElem = ::CFNumberCreate(nullptr, kCFNumberSInt32Type, &bytesPerElem);
  ::CFDictionaryAddValue(props, MacIOSurfaceLib::kPropWidth,
                                cfWidth);
  ::CFRelease(cfWidth);
  ::CFDictionaryAddValue(props, MacIOSurfaceLib::kPropHeight,
                                cfHeight);
  ::CFRelease(cfHeight);
  ::CFDictionaryAddValue(props, MacIOSurfaceLib::kPropBytesPerElem, 
                                cfBytesPerElem);
  ::CFRelease(cfBytesPerElem);
  ::CFDictionaryAddValue(props, MacIOSurfaceLib::kPropIsGlobal, 
                                kCFBooleanTrue);

  IOSurfacePtr surfaceRef = MacIOSurfaceLib::IOSurfaceCreate(props);
  ::CFRelease(props);

  if (!surfaceRef)
    return nullptr;

  RefPtr<MacIOSurface> ioSurface = new MacIOSurface(surfaceRef, aContentsScaleFactor, aHasAlpha);
  if (!ioSurface) {
    ::CFRelease(surfaceRef);
    return nullptr;
  }

  return ioSurface.forget();
}

TemporaryRef<MacIOSurface> MacIOSurface::LookupSurface(IOSurfaceID aIOSurfaceID,
                                                       double aContentsScaleFactor,
                                                       bool aHasAlpha) { 
  if (!MacIOSurfaceLib::isInit() || aContentsScaleFactor <= 0)
    return nullptr;

  IOSurfacePtr surfaceRef = MacIOSurfaceLib::IOSurfaceLookup(aIOSurfaceID);
  if (!surfaceRef)
    return nullptr;

  RefPtr<MacIOSurface> ioSurface = new MacIOSurface(surfaceRef, aContentsScaleFactor, aHasAlpha);
  if (!ioSurface) {
    ::CFRelease(surfaceRef);
    return nullptr;
  }
  return ioSurface.forget();
}

IOSurfaceID MacIOSurface::GetIOSurfaceID() { 
  return MacIOSurfaceLib::IOSurfaceGetID(mIOSurfacePtr);
}

void* MacIOSurface::GetBaseAddress() { 
  return MacIOSurfaceLib::IOSurfaceGetBaseAddress(mIOSurfacePtr);
}

size_t MacIOSurface::GetWidth() {
  size_t intScaleFactor = ceil(mContentsScaleFactor);
  return GetDevicePixelWidth() / intScaleFactor;
}

size_t MacIOSurface::GetHeight() {
  size_t intScaleFactor = ceil(mContentsScaleFactor);
  return GetDevicePixelHeight() / intScaleFactor;
}

size_t MacIOSurface::GetDevicePixelWidth() {
  return MacIOSurfaceLib::IOSurfaceGetWidth(mIOSurfacePtr);
}

size_t MacIOSurface::GetDevicePixelHeight() {
  return MacIOSurfaceLib::IOSurfaceGetHeight(mIOSurfacePtr);
}

size_t MacIOSurface::GetBytesPerRow() { 
  return MacIOSurfaceLib::IOSurfaceGetBytesPerRow(mIOSurfacePtr);
}

#define READ_ONLY 0x1
void MacIOSurface::Lock() {
  MacIOSurfaceLib::IOSurfaceLock(mIOSurfacePtr, READ_ONLY, nullptr);
}

void MacIOSurface::Unlock() {
  MacIOSurfaceLib::IOSurfaceUnlock(mIOSurfacePtr, READ_ONLY, nullptr);
}

#include "SourceSurfaceRawData.h"
using mozilla::gfx::SourceSurface;
using mozilla::gfx::SourceSurfaceRawData;
using mozilla::gfx::IntSize;
using mozilla::gfx::SurfaceFormat;

TemporaryRef<SourceSurface>
MacIOSurface::GetAsSurface() {
  Lock();
  size_t bytesPerRow = GetBytesPerRow();
  size_t ioWidth = GetDevicePixelWidth();
  size_t ioHeight = GetDevicePixelHeight();

  unsigned char* ioData = (unsigned char*)GetBaseAddress();
  unsigned char* dataCpy = (unsigned char*)malloc(bytesPerRow*ioHeight);
  for (size_t i = 0; i < ioHeight; i++) {
    memcpy(dataCpy + i * bytesPerRow,
           ioData + i * bytesPerRow, ioWidth * 4);
  }

  Unlock();

  SurfaceFormat format = HasAlpha() ? mozilla::gfx::SurfaceFormat::B8G8R8A8 :
                                      mozilla::gfx::SurfaceFormat::B8G8R8X8;

  RefPtr<SourceSurfaceRawData> surf = new SourceSurfaceRawData();
  surf->InitWrappingData(dataCpy, IntSize(ioWidth, ioHeight), bytesPerRow, format, true);

  return surf.forget();
}

CGLError
MacIOSurface::CGLTexImageIOSurface2D(CGLContextObj ctx)
{
  return MacIOSurfaceLib::CGLTexImageIOSurface2D(ctx,
                                                GL_TEXTURE_RECTANGLE_ARB,
                                                HasAlpha() ? GL_RGBA : GL_RGB,
                                                GetDevicePixelWidth(),
                                                GetDevicePixelHeight(),
                                                GL_BGRA,
                                                GL_UNSIGNED_INT_8_8_8_8_REV,
                                                mIOSurfacePtr, 0);
}

static
CGColorSpaceRef CreateSystemColorSpace() {
  CGColorSpaceRef cspace = ::CGDisplayCopyColorSpace(::CGMainDisplayID());
  if (!cspace) {
    cspace = ::CGColorSpaceCreateDeviceRGB();
  }
  return cspace;
}

CGContextRef MacIOSurface::CreateIOSurfaceContext() {
  CGColorSpaceRef cspace = CreateSystemColorSpace();
  CGContextRef ref = MacIOSurfaceLib::IOSurfaceContextCreate(mIOSurfacePtr,
                                                GetDevicePixelWidth(),
                                                GetDevicePixelHeight(),
                                                8, 32, cspace, 0x2002);
  ::CGColorSpaceRelease(cspace);
  return ref;
}

CGImageRef MacIOSurface::CreateImageFromIOSurfaceContext(CGContextRef aContext) {
  if (!MacIOSurfaceLib::isInit())
    return nullptr;

  return MacIOSurfaceLib::IOSurfaceContextCreateImage(aContext);
}

TemporaryRef<MacIOSurface> MacIOSurface::IOSurfaceContextGetSurface(CGContextRef aContext,
                                                                    double aContentsScaleFactor,
                                                                    bool aHasAlpha) {
  if (!MacIOSurfaceLib::isInit() || aContentsScaleFactor <= 0)
    return nullptr;

  IOSurfacePtr surfaceRef = MacIOSurfaceLib::IOSurfaceContextGetSurface(aContext);
  if (!surfaceRef)
    return nullptr;

  // Retain the IOSurface because MacIOSurface will release it
  CFRetain(surfaceRef);

  RefPtr<MacIOSurface> ioSurface = new MacIOSurface(surfaceRef, aContentsScaleFactor, aHasAlpha);
  if (!ioSurface) {
    ::CFRelease(surfaceRef);
    return nullptr;
  }
  return ioSurface.forget();
}


CGContextType GetContextType(CGContextRef ref)
{
  if (!MacIOSurfaceLib::isInit() || !MacIOSurfaceLib::sCGContextGetTypePtr)
    return CG_CONTEXT_TYPE_UNKNOWN;

  unsigned int type = MacIOSurfaceLib::sCGContextGetTypePtr(ref);
  if (type == CG_CONTEXT_TYPE_BITMAP) {
    return CG_CONTEXT_TYPE_BITMAP;
  } else if (type == CG_CONTEXT_TYPE_IOSURFACE) {
    return CG_CONTEXT_TYPE_IOSURFACE;
  } else {
    return CG_CONTEXT_TYPE_UNKNOWN;
  }
}