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Copy pathcore.cpp
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859 lines (680 loc) · 21.4 KB
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/******************************************************************************
* The MIT License (MIT)
*
* Copyright (c) 2014 Crytek
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
#include "core/core.h"
#include "serialise/string_utils.h"
#include "serialise/serialiser.h"
#include "replay/replay_driver.h"
#include <time.h>
#include <algorithm>
#include "data/version.h"
#include "crash_handler.h"
#include "stb/stb_image.h"
#include "common/dds_readwrite.h"
// not provided by tinyexr, just do by hand
bool is_exr_file(FILE *f)
{
FileIO::fseek64(f, 0, SEEK_SET);
const uint32_t openexr_magic = MAKE_FOURCC(0x76, 0x2f, 0x31, 0x01);
uint32_t magic = 0;
FileIO::fread(&magic, sizeof(magic), 1, f);
FileIO::fseek64(f, 0, SEEK_SET);
return magic == openexr_magic;
}
template<>
string ToStrHelper<false, RDCDriver>::Get(const RDCDriver &el)
{
switch(el)
{
TOSTR_CASE_STRINGIZE(RDC_Unknown)
TOSTR_CASE_STRINGIZE(RDC_D3D11)
TOSTR_CASE_STRINGIZE(RDC_OpenGL)
TOSTR_CASE_STRINGIZE(RDC_Mantle)
TOSTR_CASE_STRINGIZE(RDC_D3D10)
TOSTR_CASE_STRINGIZE(RDC_D3D9)
default: break;
}
char tostrBuf[256] = {0};
StringFormat::snprintf(tostrBuf, 255, "RDCDriver<%d>", el);
return tostrBuf;
}
template<>
string ToStrHelper<false, KeyButton>::Get(const KeyButton &el)
{
char alphanumericbuf[2] = { 'A', 0 };
// enums map straight to ascii
if( (el >= eKey_A && el <= eKey_Z) || (el >= eKey_0 && el <= eKey_9) )
{
alphanumericbuf[0] = (char)el;
return alphanumericbuf;
}
switch(el)
{
case eKey_Divide: return "/";
case eKey_Multiply: return "*";
case eKey_Subtract: return "-";
case eKey_Plus: return "+";
case eKey_F1: return "F1";
case eKey_F2: return "F2";
case eKey_F3: return "F3";
case eKey_F4: return "F4";
case eKey_F5: return "F5";
case eKey_F6: return "F6";
case eKey_F7: return "F7";
case eKey_F8: return "F8";
case eKey_F9: return "F9";
case eKey_F10: return "F10";
case eKey_F11: return "F11";
case eKey_F12: return "F12";
case eKey_Home: return "Home";
case eKey_End: return "End";
case eKey_Insert: return "Insert";
case eKey_Delete: return "Delete";
case eKey_PageUp: return "PageUp";
case eKey_PageDn: return "PageDn";
case eKey_Backspace: return "Backspace";
case eKey_Tab: return "Tab";
case eKey_PrtScrn: return "PrtScrn";
case eKey_Pause: return "Pause";
default: break;
}
char tostrBuf[256] = {0};
StringFormat::snprintf(tostrBuf, 255, "KeyButton<%d>", el);
return tostrBuf;
}
RenderDoc *RenderDoc::m_Inst = NULL;
RenderDoc &RenderDoc::Inst()
{
static RenderDoc realInst;
RenderDoc::m_Inst = &realInst;
return realInst;
}
void RenderDoc::RecreateCrashHandler()
{
UnloadCrashHandler();
#ifdef CRASH_HANDLER_ENABLED
m_ExHandler = new CrashHandler(m_ExHandler);
#endif
if(m_ExHandler)
m_ExHandler->RegisterMemoryRegion(this, sizeof(RenderDoc));
}
void RenderDoc::UnloadCrashHandler()
{
if(m_ExHandler)
m_ExHandler->UnregisterMemoryRegion(this);
SAFE_DELETE(m_ExHandler);
}
RenderDoc::RenderDoc()
{
m_LogFile = "";
m_MarkerIndentLevel = 0;
m_CurrentDriver = RDC_Unknown;
m_Replay = false;
m_Cap = false;
m_FocusKeys.clear();
m_FocusKeys.push_back(eKey_F11);
m_CaptureKeys.clear();
m_CaptureKeys.push_back(eKey_F12);
m_CaptureKeys.push_back(eKey_PrtScrn);
m_ProgressPtr = NULL;
m_ExHandler = NULL;
m_Overlay = eOverlay_Default;
m_RemoteServerThreadShutdown = false;
m_RemoteClientThreadShutdown = false;
}
void RenderDoc::Initialise()
{
Callstack::Init();
Network::Init();
m_RemoteIdent = 0;
if(!IsReplayApp())
{
uint32_t port = RenderDoc_FirstCaptureNetworkPort;
Network::Socket *sock = Network::CreateServerSocket("0.0.0.0", port&0xffff, 4);
while(sock == NULL)
{
port++;
if(port > RenderDoc_LastCaptureNetworkPort)
{
m_RemoteIdent = 0;
break;
}
sock = Network::CreateServerSocket("0.0.0.0", port&0xffff, 4);
}
if(sock)
{
m_RemoteIdent = port;
m_RemoteServerThreadShutdown = false;
m_RemoteThread = Threading::CreateThread(RemoteAccessServerThread, (void *)sock);
}
}
// set default capture log - useful for when hooks aren't setup
// through the UI (and a log file isn't set manually)
{
string capture_filename;
const char *base = "RenderDoc_app";
if(IsReplayApp())
base = "RenderDoc_replay";
FileIO::GetDefaultFiles(base, capture_filename, m_LoggingFilename, m_Target);
if(m_LogFile.empty())
SetLogFile(capture_filename.c_str());
string existingLog = RDCGETLOGFILE();
FileIO::Copy(existingLog.c_str(), m_LoggingFilename.c_str(), true);
RDCLOGFILE(m_LoggingFilename.c_str());
}
if(IsReplayApp())
RDCLOG("RenderDoc v%s %s (%s) loaded in replay application",
RENDERDOC_VERSION_STRING, sizeof(uintptr_t) == sizeof(uint64_t) ? "x64" : "x86", GIT_COMMIT_HASH);
else
RDCLOG("RenderDoc v%s %s (%s) capturing application",
RENDERDOC_VERSION_STRING, sizeof(uintptr_t) == sizeof(uint64_t) ? "x64" : "x86", GIT_COMMIT_HASH);
Keyboard::Init();
m_ExHandler = NULL;
{
string curFile;
FileIO::GetExecutableFilename(curFile);
string f = strlower(curFile);
// only create crash handler when we're not in renderdoccmd.exe (to prevent infinite loop as
// the crash handler itself launches renderdoccmd.exe)
if(f.find("renderdoccmd.exe") == string::npos)
{
RecreateCrashHandler();
}
}
}
RenderDoc::~RenderDoc()
{
if(m_ExHandler)
{
UnloadCrashHandler();
}
for(auto it=m_ShutdownFunctions.begin(); it != m_ShutdownFunctions.end(); ++it)
(*it)();
for(size_t i=0; i < m_Captures.size(); i++)
{
if(m_Captures[i].retrieved)
{
RDCLOG("Removing remotely retrieved capture %s", m_Captures[i].path.c_str());
FileIO::Delete(m_Captures[i].path.c_str());
}
else
{
RDCLOG("'Leaking' unretrieved capture %s", m_Captures[i].path.c_str());
}
}
FileIO::Delete(m_LoggingFilename.c_str());
if(m_RemoteThread)
{
m_RemoteServerThreadShutdown = true;
// don't join, just close the thread, as we can't wait while in the middle of module unloading
Threading::CloseThread(m_RemoteThread);
m_RemoteThread = 0;
}
Network::Shutdown();
FileIO::Delete(m_LoggingFilename.c_str());
}
void RenderDoc::Shutdown()
{
if(m_ExHandler)
{
UnloadCrashHandler();
}
if(m_RemoteThread)
{
// explicitly wait for thread to shutdown, this call is not from module unloading and
// we want to be sure everything is gone before we remove our module & hooks
m_RemoteServerThreadShutdown = true;
Threading::JoinThread(m_RemoteThread);
Threading::CloseThread(m_RemoteThread);
m_RemoteThread = 0;
}
}
IFrameCapturer *RenderDoc::MatchFrameCapturer(void *dev, void *wnd)
{
DeviceWnd dw(dev, wnd);
// lower_bound and the DeviceWnd ordering (pointer compares, dev over wnd) means that if either
// element in dw is NULL we can go forward from this iterator and find the first wildcardMatch
// note that if dev is specified and wnd is NULL, this will actually point at the first
// wildcardMatch already and we can use it immediately (since which window of multiple we
// choose is undefined, so up to us). If dev is NULL there is no window ordering (since dev is
// the primary sorting value) so we just iterate through the whole map. It should be small in
// the majority of cases
auto it = m_WindowFrameCapturers.lower_bound(dw);
while(it != m_WindowFrameCapturers.end())
{
if(it->first.wildcardMatch(dw)) break;
++it;
}
if(it == m_WindowFrameCapturers.end())
{
// handle off-screen rendering where there are no device/window pairs in
// m_WindowFrameCapturers, instead we use the first matching device frame capturer
if(wnd == NULL)
{
auto defaultit = m_DeviceFrameCapturers.find(dev);
if(defaultit == m_DeviceFrameCapturers.end() && !m_DeviceFrameCapturers.empty())
defaultit = m_DeviceFrameCapturers.begin();
if(defaultit != m_DeviceFrameCapturers.end())
return defaultit->second;
}
RDCERR("Couldn't find matching frame capturer for device %p window %p", dev, wnd);
return NULL;
}
return it->second.FrameCapturer;
}
void RenderDoc::StartFrameCapture(void *dev, void *wnd)
{
IFrameCapturer *frameCap = MatchFrameCapturer(dev, wnd);
if(frameCap)
frameCap->StartFrameCapture(dev, wnd);
}
void RenderDoc::SetActiveWindow(void *dev, void *wnd)
{
DeviceWnd dw(dev, wnd);
auto it = m_WindowFrameCapturers.find(dw);
if(it == m_WindowFrameCapturers.end())
{
RDCERR("Couldn't find frame capturer for device %p window %p", dev, wnd);
return;
}
m_ActiveWindow = dw;
}
bool RenderDoc::EndFrameCapture(void *dev, void *wnd)
{
IFrameCapturer *frameCap = MatchFrameCapturer(dev, wnd);
if(frameCap)
return frameCap->EndFrameCapture(dev, wnd);
return false;
}
bool RenderDoc::IsRemoteAccessConnected()
{
SCOPED_LOCK(RenderDoc::Inst().m_SingleClientLock);
return !RenderDoc::Inst().m_SingleClientName.empty();
}
void RenderDoc::Tick()
{
static bool prev_focus = false;
static bool prev_cap = false;
bool cur_focus = false;
for(size_t i=0; i < m_FocusKeys.size(); i++) cur_focus |= Keyboard::GetKeyState(m_FocusKeys[i]);
bool cur_cap = false;
for(size_t i=0; i < m_CaptureKeys.size(); i++) cur_cap |= Keyboard::GetKeyState(m_CaptureKeys[i]);
if(!prev_focus && cur_focus)
{
m_Cap = false;
// can only shift focus if we have multiple windows
if(m_WindowFrameCapturers.size() > 1)
{
for(auto it = m_WindowFrameCapturers.begin(); it != m_WindowFrameCapturers.end(); ++it)
{
if(it->first == m_ActiveWindow)
{
auto nextit = it; ++nextit;
if(nextit != m_WindowFrameCapturers.end())
m_ActiveWindow = nextit->first;
else
m_ActiveWindow = m_WindowFrameCapturers.begin()->first;
break;
}
}
}
}
if(!prev_cap && cur_cap)
{
TriggerCapture();
}
prev_focus = cur_focus;
prev_cap = cur_cap;
}
bool RenderDoc::ShouldTriggerCapture(uint32_t frameNumber)
{
bool ret = m_Cap;
m_Cap = false;
set<uint32_t> frames;
frames.swap(m_QueuedFrameCaptures);
for(auto it=frames.begin(); it != frames.end(); ++it)
{
if(*it < frameNumber)
{
// discard, this frame is past.
}
else if((*it) - 1 == frameNumber)
{
// we want to capture the next frame
ret = true;
}
else
{
// not hit this yet, keep it around
m_QueuedFrameCaptures.insert(*it);
}
}
return ret;
}
Serialiser *RenderDoc::OpenWriteSerialiser(uint32_t frameNum, RDCInitParams *params, void *thpixels, size_t thlen, uint32_t thwidth, uint32_t thheight)
{
RDCASSERT(m_CurrentDriver != RDC_Unknown);
#if defined(RELEASE)
const bool debugSerialiser = false;
#else
const bool debugSerialiser = true;
#endif
m_CurrentLogFile = StringFormat::Fmt("%s_frame%u.rdc", m_LogFile.c_str(), frameNum);
Serialiser *fileSerialiser = new Serialiser(m_CurrentLogFile.c_str(), Serialiser::WRITING, debugSerialiser);
Serialiser *chunkSerialiser = new Serialiser(NULL, Serialiser::WRITING, debugSerialiser);
{
ScopedContext scope(chunkSerialiser, NULL, "Thumbnail", THUMBNAIL_DATA, false);
bool HasThumbnail = (thpixels != NULL && thwidth > 0 && thheight > 0);
chunkSerialiser->Serialise("HasThumbnail", HasThumbnail);
if(HasThumbnail)
{
byte *buf = (byte *)thpixels;
chunkSerialiser->Serialise("ThumbWidth", thwidth);
chunkSerialiser->Serialise("ThumbHeight", thheight);
chunkSerialiser->SerialiseBuffer("ThumbnailPixels", buf, thlen);
}
fileSerialiser->Insert(scope.Get(true));
}
{
ScopedContext scope(chunkSerialiser, NULL, "Capture Create Parameters", CREATE_PARAMS, false);
chunkSerialiser->Serialise("DriverType", m_CurrentDriver);
chunkSerialiser->SerialiseString("DriverName", m_CurrentDriverName);
{
ScopedContext driverparams(chunkSerialiser, NULL, "Driver Specific", DRIVER_INIT_PARAMS, false);
params->m_pSerialiser = chunkSerialiser;
params->m_State = WRITING;
params->Serialise();
}
fileSerialiser->Insert(scope.Get(true));
}
SAFE_DELETE(chunkSerialiser);
return fileSerialiser;
}
ReplayCreateStatus RenderDoc::FillInitParams(const char *logFile, RDCDriver &driverType, string &driverName, RDCInitParams *params)
{
Serialiser ser(logFile, Serialiser::READING, true);
if(ser.HasError())
{
FILE *f = FileIO::fopen(logFile, "rb");
if(f)
{
int x = 0, y = 0, comp = 0;
int ret = stbi_info_from_file(f, &x, &y, &comp);
FileIO::fseek64(f, 0, SEEK_SET);
if(is_dds_file(f))
ret = x = y = comp = 1;
if(is_exr_file(f))
ret = x = y = comp = 1;
FileIO::fclose(f);
if(ret == 1 && x > 0 && y > 0 && comp > 0)
{
driverType = RDC_Image;
driverName = "Image";
return eReplayCreate_Success;
}
}
RDCERR("Couldn't open '%s'", logFile);
switch(ser.ErrorCode())
{
case Serialiser::eSerError_FileIO: return eReplayCreate_FileIOFailed;
case Serialiser::eSerError_Corrupt: return eReplayCreate_FileCorrupted;
case Serialiser::eSerError_UnsupportedVersion: return eReplayCreate_FileIncompatibleVersion;
default: break;
}
return eReplayCreate_InternalError;
}
ser.Rewind();
{
int chunkType = ser.PushContext(NULL, 1, false);
if(chunkType != THUMBNAIL_DATA)
{
RDCERR("Malformed logfile '%s', first chunk isn't thumbnail data", logFile);
return eReplayCreate_FileCorrupted;
}
ser.SkipCurrentChunk();
ser.PopContext(NULL, 1);
}
{
int chunkType = ser.PushContext(NULL, 1, false);
if(chunkType != CREATE_PARAMS)
{
RDCERR("Malformed logfile '%s', second chunk isn't create params", logFile);
return eReplayCreate_FileCorrupted;
}
ser.Serialise("DriverType", driverType);
ser.SerialiseString("DriverName", driverName);
chunkType = ser.PushContext(NULL, 1, false);
if(chunkType != DRIVER_INIT_PARAMS)
{
RDCERR("Malformed logfile '%s', chunk doesn't contain driver init params", logFile);
return eReplayCreate_FileCorrupted;
}
if(params)
{
params->m_State = READING;
params->m_pSerialiser = &ser;
return params->Serialise();
}
}
// we can just throw away the serialiser, don't need to care about closing/popping contexts
return eReplayCreate_Success;
}
bool RenderDoc::HasReplayDriver(RDCDriver driver) const
{
return m_ReplayDriverProviders.find(driver) != m_ReplayDriverProviders.end();
}
bool RenderDoc::HasRemoteDriver(RDCDriver driver) const
{
if(m_RemoteDriverProviders.find(driver) != m_RemoteDriverProviders.end())
return true;
return HasReplayDriver(driver);
}
void RenderDoc::RegisterReplayProvider(RDCDriver driver, const char *name, ReplayDriverProvider provider)
{
if(HasReplayDriver(driver))
RDCERR("Re-registering provider for %s (was %s)", name, m_DriverNames[driver].c_str());
if(HasRemoteDriver(driver))
RDCWARN("Registering local provider %s for existing remote provider %s", name, m_DriverNames[driver].c_str());
m_DriverNames[driver] = name;
m_ReplayDriverProviders[driver] = provider;
}
void RenderDoc::RegisterRemoteProvider(RDCDriver driver, const char *name, RemoteDriverProvider provider)
{
if(HasRemoteDriver(driver))
RDCERR("Re-registering provider for %s (was %s)", name, m_DriverNames[driver].c_str());
if(HasReplayDriver(driver))
RDCWARN("Registering remote provider %s for existing local provider %s", name, m_DriverNames[driver].c_str());
m_DriverNames[driver] = name;
m_RemoteDriverProviders[driver] = provider;
}
ReplayCreateStatus RenderDoc::CreateReplayDriver(RDCDriver driverType, const char *logfile, IReplayDriver **driver)
{
if(driver == NULL) return eReplayCreate_InternalError;
// allows passing RDC_Unknown as 'I don't care, give me a proxy driver of any type'
// only valid if logfile is NULL and it will be used as a proxy, not to process a log
if(driverType == RDC_Unknown && logfile == NULL && !m_ReplayDriverProviders.empty())
return m_ReplayDriverProviders.begin()->second(logfile, driver);
if(m_ReplayDriverProviders.find(driverType) != m_ReplayDriverProviders.end())
return m_ReplayDriverProviders[driverType](logfile, driver);
RDCERR("Unsupported replay driver requested: %d", driverType);
return eReplayCreate_APIUnsupported;
}
ReplayCreateStatus RenderDoc::CreateRemoteDriver(RDCDriver driverType, const char *logfile, IRemoteDriver **driver)
{
if(driver == NULL) return eReplayCreate_InternalError;
if(m_RemoteDriverProviders.find(driverType) != m_RemoteDriverProviders.end())
return m_RemoteDriverProviders[driverType](logfile, driver);
// replay drivers are remote drivers, fall back and try them
if(m_ReplayDriverProviders.find(driverType) != m_ReplayDriverProviders.end())
{
IReplayDriver *dr = NULL;
auto status = m_ReplayDriverProviders[driverType](logfile, &dr);
if(status == eReplayCreate_Success)
*driver = (IRemoteDriver *)dr;
else
RDCASSERT(dr == NULL);
return status;
}
RDCERR("Unsupported replay driver requested: %d", driverType);
return eReplayCreate_APIUnsupported;
}
void RenderDoc::SetCurrentDriver(RDCDriver driver)
{
if(!HasReplayDriver(driver) && !HasRemoteDriver(driver))
{
RDCFATAL("Trying to register unsupported driver!");
}
m_CurrentDriver = driver;
m_CurrentDriverName = m_DriverNames[driver];
}
void RenderDoc::GetCurrentDriver(RDCDriver &driver, string &name)
{
driver = m_CurrentDriver;
name = m_CurrentDriverName;
}
map<RDCDriver, string> RenderDoc::GetReplayDrivers()
{
map<RDCDriver, string> ret;
for(auto it=m_ReplayDriverProviders.begin(); it != m_ReplayDriverProviders.end(); ++it)
ret[it->first] = m_DriverNames[it->first];
return ret;
}
map<RDCDriver, string> RenderDoc::GetRemoteDrivers()
{
map<RDCDriver, string> ret;
for(auto it=m_RemoteDriverProviders.begin(); it != m_RemoteDriverProviders.end(); ++it)
ret[it->first] = m_DriverNames[it->first];
// replay drivers are remote drivers.
for(auto it=m_ReplayDriverProviders.begin(); it != m_ReplayDriverProviders.end(); ++it)
ret[it->first] = m_DriverNames[it->first];
return ret;
}
void RenderDoc::SetCaptureOptions(const CaptureOptions *opts)
{
m_Options = *opts;
}
void RenderDoc::SetLogFile(const char *logFile)
{
m_LogFile = logFile;
if(m_LogFile.substr(m_LogFile.length()-4) == ".rdc")
m_LogFile = m_LogFile.substr(0, m_LogFile.length()-4);
}
void RenderDoc::SetProgress(LoadProgressSection section, float delta)
{
if(m_ProgressPtr == NULL || section < 0 || section >= NumSections)
return;
float weights[NumSections];
// must sum to 1.0
weights[DebugManagerInit] = 0.4f;
weights[FileInitialRead] = 0.6f;
float progress = 0.0f;
for(int i=0; i < section; i++)
{
progress += weights[i];
}
progress += weights[section]*delta;
*m_ProgressPtr = progress;
}
void RenderDoc::SuccessfullyWrittenLog()
{
RDCLOG("Written to disk: %s", m_CurrentLogFile.c_str());
CaptureData cap(m_CurrentLogFile, Timing::GetUnixTimestamp());
{
SCOPED_LOCK(m_CaptureLock);
m_Captures.push_back(cap);
}
}
void RenderDoc::AddDeviceFrameCapturer(void *dev, IFrameCapturer *cap)
{
if(dev == NULL || cap == NULL)
{
RDCERR("Invalid FrameCapturer combination: %#p / %#p", dev, cap);
return;
}
m_DeviceFrameCapturers[dev] = cap;
}
void RenderDoc::RemoveDeviceFrameCapturer(void *dev)
{
if(dev == NULL)
{
RDCERR("Invalid device pointer: %#p / %#p", dev);
return;
}
m_DeviceFrameCapturers.erase(dev);
}
void RenderDoc::AddFrameCapturer(void *dev, void *wnd, IFrameCapturer *cap)
{
if(dev == NULL || wnd == NULL || cap == NULL)
{
RDCERR("Invalid FrameCapturer combination: %#p / %#p", wnd, cap);
return;
}
DeviceWnd dw(dev, wnd);
auto it = m_WindowFrameCapturers.find(dw);
if(it != m_WindowFrameCapturers.end())
{
if(it->second.FrameCapturer != cap)
RDCERR("New different FrameCapturer being registered for known device/window pair!");
it->second.RefCount++;
}
else
{
m_WindowFrameCapturers[dw].FrameCapturer = cap;
}
// the first one we see becomes the default
if(m_ActiveWindow == DeviceWnd())
m_ActiveWindow = dw;
}
void RenderDoc::RemoveFrameCapturer(void *dev, void *wnd)
{
DeviceWnd dw(dev, wnd);
auto it = m_WindowFrameCapturers.find(dw);
if(it != m_WindowFrameCapturers.end())
{
it->second.RefCount--;
if(it->second.RefCount <= 0)
{
if(m_ActiveWindow == dw)
{
if(m_WindowFrameCapturers.size() == 1)
{
m_ActiveWindow = DeviceWnd();
}
else
{
auto it = m_WindowFrameCapturers.begin();
// active window could be the first in our list, move
// to second (we know from above there are at least 2)
if(m_ActiveWindow == it->first)
it++;
m_ActiveWindow = it->first;
}
}
m_WindowFrameCapturers.erase(it);
}
}
else
{
RDCERR("Removing FrameCapturer for unknown window!");
}
}
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