CCodec* CreateCodec(CodecType nCodecType)
{
#ifdef USE_DBGTRACE
DbgTrace(("nCodecType %d",nCodecType));
#endif
switch(nCodecType)
{
case CT_DXT1: return new CCodec_DXT1;
case CT_DXT3: return new CCodec_DXT3;
case CT_DXT5: return new CCodec_DXT5;
case CT_DXT5_xGBR: return new CCodec_DXT5_xGBR;
case CT_DXT5_RxBG: return new CCodec_DXT5_RxBG;
case CT_DXT5_RBxG: return new CCodec_DXT5_RBxG;
case CT_DXT5_xRBG: return new CCodec_DXT5_xRBG;
case CT_DXT5_RGxB: return new CCodec_DXT5_RGxB;
case CT_DXT5_xGxR: return new CCodec_DXT5_xGxR;
case CT_ATI1N: return new CCodec_ATI1N;
case CT_ATI2N: return new CCodec_ATI2N;
case CT_ATI2N_XY: return new CCodec_ATI2N(CT_ATI2N_XY);
case CT_ATI2N_DXT5: return new CCodec_ATI2N_DXT5;
case CT_ATC_RGB: return new CCodec_ATC_RGB;
case CT_ATC_RGBA_Explicit: return new CCodec_ATC_RGBA_Explicit;
case CT_ATC_RGBA_Interpolated: return new CCodec_ATC_RGBA_Interpolated;
case CT_ETC_RGB: return new CCodec_ETC_RGB;
case CT_BC6H: return new CCodec_BC6H;
case CT_BC7: return new CCodec_BC7;
case CT_ASTC: return new CCodec_ASTC;
case CT_GT: return new CCodec_GT;
case CT_Unknown:
default:
assert(0);
return NULL;
}
}
// getStackTrace - Traces the stack as far back as possible, or until 'maxdepth'
// frames have been traced. Populates the CallStack with one entry for each
// stack frame traced.
//
// Note: This function uses a documented Windows API to walk the stack. This
// API is supposed to be the most reliable way to walk the stack. It claims
// to be able to walk stack frames that do not follow the conventional stack
// frame layout. However, this robustness comes at a cost: it is *extremely*
// slow compared to walking frames by following frame (base) pointers.
//
// - maxdepth (IN): Maximum number of frames to trace back.
//
// - framepointer (IN): Frame (base) pointer at which to begin the stack trace.
// If NULL, then the stack trace will begin at this function.
//
// Return Value:
//
// None.
//
VOID SafeCallStack::getStackTrace (UINT32 maxdepth, const context_t& context)
{
UINT_PTR* framePointer = context.fp;
DWORD architecture = X86X64ARCHITECTURE;
CONTEXT currentContext;
memset(¤tContext, 0, sizeof(currentContext));
// Get the required values for initialization of the STACKFRAME64 structure
// to be passed to StackWalk64(). Required fields are AddrPC and AddrFrame.
#if defined(_M_IX86)
UINT_PTR programcounter = *(framePointer + 1);
UINT_PTR stackpointer = (*framePointer) - maxdepth * 10 * sizeof(void*); // An approximation.
currentContext.SPREG = stackpointer;
currentContext.BPREG = (DWORD64)framePointer;
currentContext.IPREG = programcounter;
#elif defined(_M_X64)
currentContext.SPREG = context.Rsp;
currentContext.BPREG = (DWORD64)framePointer;
currentContext.IPREG = context.Rip;
#else
// If you want to retarget Visual Leak Detector to another processor
// architecture then you'll need to provide architecture-specific code to
// obtain the program counter and stack pointer from the given frame pointer.
#error "Visual Leak Detector is not supported on this architecture."
#endif // _M_IX86 || _M_X64
// Initialize the STACKFRAME64 structure.
STACKFRAME64 frame;
memset(&frame, 0x0, sizeof(frame));
frame.AddrPC.Offset = currentContext.IPREG;
frame.AddrPC.Mode = AddrModeFlat;
frame.AddrStack.Offset = currentContext.SPREG;
frame.AddrStack.Mode = AddrModeFlat;
frame.AddrFrame.Offset = currentContext.BPREG;
frame.AddrFrame.Mode = AddrModeFlat;
frame.Virtual = TRUE;
// Walk the stack.
CriticalSectionLocker cs(g_stackWalkLock);
UINT32 count = 0;
while (count < maxdepth) {
count++;
DbgTrace(L"dbghelp32.dll %i: StackWalk64\n", GetCurrentThreadId());
if (!StackWalk64(architecture, g_currentProcess, g_currentThread, &frame, ¤tContext, NULL,
SymFunctionTableAccess64, SymGetModuleBase64, NULL)) {
// Couldn't trace back through any more frames.
break;
}
if (frame.AddrFrame.Offset == 0) {
// End of stack.
break;
}
// Push this frame's program counter onto the CallStack.
push_back((UINT_PTR)frame.AddrPC.Offset);
}
}
// getStackTrace - Traces the stack as far back as possible, or until 'maxdepth'
// frames have been traced. Populates the CallStack with one entry for each
// stack frame traced.
//
// Note: This function uses a documented Windows API to walk the stack. This
// API is supposed to be the most reliable way to walk the stack. It claims
// to be able to walk stack frames that do not follow the conventional stack
// frame layout. However, this robustness comes at a cost: it is *extremely*
// slow compared to walking frames by following frame (base) pointers.
//
// - maxdepth (IN): Maximum number of frames to trace back.
//
// - framepointer (IN): Frame (base) pointer at which to begin the stack trace.
// If NULL, then the stack trace will begin at this function.
//
// Return Value:
//
// None.
//
VOID SafeCallStack::getStackTrace (UINT32 maxdepth, const context_t& context)
{
UINT32 count = 0;
UINT_PTR function = context.func;
if (function != NULL)
{
count++;
push_back(function);
}
DWORD architecture = X86X64ARCHITECTURE;
// Get the required values for initialization of the STACKFRAME64 structure
// to be passed to StackWalk64(). Required fields are AddrPC and AddrFrame.
CONTEXT currentContext;
memset(¤tContext, 0, sizeof(currentContext));
currentContext.SPREG = context.SPREG;
currentContext.BPREG = context.BPREG;
currentContext.IPREG = context.IPREG;
// Initialize the STACKFRAME64 structure.
STACKFRAME64 frame;
memset(&frame, 0x0, sizeof(frame));
frame.AddrPC.Offset = currentContext.IPREG;
frame.AddrPC.Mode = AddrModeFlat;
frame.AddrStack.Offset = currentContext.SPREG;
frame.AddrStack.Mode = AddrModeFlat;
frame.AddrFrame.Offset = currentContext.BPREG;
frame.AddrFrame.Mode = AddrModeFlat;
frame.Virtual = TRUE;
CriticalSectionLocker<> cs(g_heapMapLock);
CriticalSectionLocker<DHStackWalk> locker(g_StackWalk);
// Walk the stack.
while (count < maxdepth) {
count++;
DbgTrace(L"dbghelp32.dll %i: StackWalk64\n", GetCurrentThreadId());
if (!g_StackWalk.StackWalk64(architecture, g_currentProcess, g_currentThread, &frame, ¤tContext, NULL,
SymFunctionTableAccess64, SymGetModuleBase64, NULL, locker)) {
// Couldn't trace back through any more frames.
break;
}
if (frame.AddrFrame.Offset == 0) {
// End of stack.
break;
}
// Push this frame's program counter onto the CallStack.
push_back((UINT_PTR)frame.AddrPC.Offset);
}
}
// isCrtStartupAlloc - Determines whether the memory leak was generated from crt startup code.
// This is not an actual memory leaks as it is freed by crt after the VLD object has been destroyed.
//
// Return Value:
//
// true if isCrtStartupModule for any callstack frame returns true.
//
bool CallStack::isCrtStartupAlloc()
{
if (m_status & CALLSTACK_STATUS_STARTUPCRT) {
return true;
} else if (m_status & CALLSTACK_STATUS_NOTSTARTUPCRT) {
return false;
}
IMAGEHLP_LINE64 sourceInfo = { 0 };
sourceInfo.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
BYTE symbolBuffer[sizeof(SYMBOL_INFO) + MAX_SYMBOL_NAME_SIZE] = { 0 };
CriticalSectionLocker<DbgHelp> locker(g_DbgHelp);
// Iterate through each frame in the call stack.
for (UINT32 frame = 0; frame < m_size; frame++) {
// Try to get the source file and line number associated with
// this program counter address.
SIZE_T programCounter = (*this)[frame];
BOOL foundline = FALSE;
DWORD displacement = 0;
DbgTrace(L"dbghelp32.dll %i: SymGetLineFromAddrW64\n", GetCurrentThreadId());
foundline = g_DbgHelp.SymGetLineFromAddrW64(g_currentProcess, programCounter, &displacement, &sourceInfo);
if (foundline) {
DWORD64 displacement64;
LPCWSTR functionName = getFunctionName(programCounter, displacement64, (SYMBOL_INFO*)&symbolBuffer, locker);
if (beginWith(functionName, wcslen(functionName), L"`dynamic initializer for '")) {
break;
}
if (isCrtStartupModule(sourceInfo.FileName)) {
m_status |= CALLSTACK_STATUS_STARTUPCRT;
return true;
}
}
}
m_status |= CALLSTACK_STATUS_NOTSTARTUPCRT;
return false;
}
LPCWSTR CallStack::getFunctionName(SIZE_T programCounter, DWORD64& displacement64,
SYMBOL_INFO* functionInfo, CriticalSectionLocker<DbgHelp>& locker) const
{
// Initialize structures passed to the symbol handler.
functionInfo->SizeOfStruct = sizeof(SYMBOL_INFO);
functionInfo->MaxNameLen = MAX_SYMBOL_NAME_LENGTH;
// Try to get the name of the function containing this program
// counter address.
displacement64 = 0;
LPCWSTR functionName;
DbgTrace(L"dbghelp32.dll %i: SymFromAddrW\n", GetCurrentThreadId());
if (g_DbgHelp.SymFromAddrW(g_currentProcess, programCounter, &displacement64, functionInfo, locker)) {
functionName = functionInfo->Name;
}
else {
// GetFormattedMessage( GetLastError() );
fmt::WArrayWriter wf(functionInfo->Name, MAX_SYMBOL_NAME_LENGTH);
wf.write(L"" ADDRESSCPPFORMAT, programCounter);
functionName = wf.c_str();
displacement64 = 0;
}
return functionName;
}
CodecError CCodec_DXT5::Compress(CCodecBuffer& bufferIn, CCodecBuffer& bufferOut, Codec_Feedback_Proc pFeedbackProc, CMP_DWORD_PTR pUser1, CMP_DWORD_PTR pUser2)
{
#ifndef _WIN64 //todo: add sse2 feature for win64
if(m_nCompressionSpeed == CMP_Speed_SuperFast && m_bUseSSE2)
return Compress_SuperFast(bufferIn, bufferOut, pFeedbackProc, pUser1, pUser2);
else if((m_nCompressionSpeed == CMP_Speed_Fast || m_nCompressionSpeed == CMP_Speed_SuperFast) && m_bUseSSE)
return Compress_Fast(bufferIn, bufferOut, pFeedbackProc, pUser1, pUser2);
#endif
assert(bufferIn.GetWidth() == bufferOut.GetWidth());
assert(bufferIn.GetHeight() == bufferOut.GetHeight());
if(bufferIn.GetWidth() != bufferOut.GetWidth() || bufferIn.GetHeight() != bufferOut.GetHeight())
return CE_Unknown;
#ifdef DXT5_COMPDEBUGGER
CompViewerClient g_CompClient;
if (g_CompClient.connect())
{
DbgTrace(("-------> Remote Server Connected"));
}
#endif
const CMP_DWORD dwBlocksX = ((bufferIn.GetWidth() + 3) >> 2);
const CMP_DWORD dwBlocksY = ((bufferIn.GetHeight() + 3) >> 2);
#ifdef DXT5_COMPDEBUGGER
DbgTrace(("IN : BufferType %d ChannelCount %d ChannelDepth %d",bufferIn.GetBufferType(),bufferIn.GetChannelCount(),bufferIn.GetChannelDepth()));
DbgTrace((" : Height %d Width %d Pitch %d isFloat %d",bufferIn.GetHeight(),bufferIn.GetWidth(),bufferIn.GetWidth(),bufferIn.IsFloat()));
DbgTrace(("OUT: BufferType %d ChannelCount %d ChannelDepth %d",bufferOut.GetBufferType(),bufferOut.GetChannelCount(),bufferOut.GetChannelDepth()));
DbgTrace((" : Height %d Width %d Pitch %d isFloat %d",bufferOut.GetHeight(),bufferOut.GetWidth(),bufferOut.GetWidth(),bufferOut.IsFloat()));
#endif;
bool bUseFixed = (!bufferIn.IsFloat() && bufferIn.GetChannelDepth() == 8 && !m_bUseFloat);
for(CMP_DWORD j = 0; j < dwBlocksY; j++)
{
for(CMP_DWORD i = 0; i < dwBlocksX; i++)
{
CMP_DWORD compressedBlock[4];
memset(compressedBlock,0,sizeof(compressedBlock));
if(bUseFixed)
{
CMP_BYTE srcBlock[BLOCK_SIZE_4X4X4];
memset(srcBlock,0,sizeof(srcBlock));
bufferIn.ReadBlockRGBA(i*4, j*4, 4, 4, srcBlock);
#ifdef DXT5_COMPDEBUGGER
g_CompClient.SendData(1,sizeof(srcBlock),srcBlock);
#endif
CompressRGBABlock(srcBlock, compressedBlock, CalculateColourWeightings(srcBlock));
}
else
{
float srcBlock[BLOCK_SIZE_4X4X4];
bufferIn.ReadBlockRGBA(i*4, j*4, 4, 4, srcBlock);
CompressRGBABlock(srcBlock, compressedBlock, CalculateColourWeightings(srcBlock));
}
bufferOut.WriteBlock(i*4, j*4, compressedBlock, 4);
#ifdef DXT5_COMPDEBUGGER
//g_CompClient.SendData(2,sizeof(compressedBlock),(byte *)&compressedBlock[0]);
#endif
#ifdef DXT5_COMPDEBUGGER // Checks decompression it should match or be close to source
CMP_BYTE destBlock[BLOCK_SIZE_4X4X4];
DecompressRGBABlock(destBlock, compressedBlock);
g_CompClient.SendData(3,sizeof(destBlock),destBlock);
#endif
}
if(pFeedbackProc)
{
float fProgress = 100.f * (j * dwBlocksX) / (dwBlocksX * dwBlocksY);
if(pFeedbackProc(fProgress, pUser1, pUser2))
{
#ifdef DXT5_COMPDEBUGGER
g_CompClient.disconnect();
#endif
return CE_Aborted;
}
}
}
#ifdef DXT5_COMPDEBUGGER
g_CompClient.disconnect();
#endif
return CE_OK;
}
// Resolve - Creates a nicely formatted rendition of the CallStack, including
// symbolic information (function names and line numbers) if available. and
// saves it for later retrieval. This is almost identical to Callstack::dump above.
//
// Note: The symbol handler must be initialized prior to calling this
// function.
//
// - showInternalFrames (IN): If true, then all frames in the CallStack will be
// dumped. Otherwise, frames internal to the heap will not be dumped.
//
// Return Value:
//
// None.
//
void CallStack::resolve(BOOL showInternalFrames)
{
if (m_resolved)
{
// already resolved, no need to do it again
// resolving twice may report an incorrect module for the stack frames
// if the memory was leaked in a dynamic library that was already unloaded.
return;
}
if (m_status & CALLSTACK_STATUS_INCOMPLETE) {
// This call stack appears to be incomplete. Using StackWalk64 may be
// more reliable.
Report(L" HINT: The following call stack may be incomplete. Setting \"StackWalkMethod\"\n"
L" in the vld.ini file to \"safe\" instead of \"fast\" may result in a more\n"
L" complete stack trace.\n");
}
IMAGEHLP_LINE64 sourceInfo = { 0 };
sourceInfo.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
BYTE symbolBuffer [sizeof(SYMBOL_INFO) + MAX_SYMBOL_NAME_SIZE] = { 0 };
WCHAR callingModuleName [MAX_PATH] = L"";
WCHAR lowerCaseName [MAX_PATH];
const size_t max_line_length = MAXREPORTLENGTH + 1;
m_resolvedCapacity = m_size * max_line_length;
m_resolved = new WCHAR[m_resolvedCapacity];
const size_t allocedBytes = m_resolvedCapacity * sizeof(WCHAR);
ZeroMemory(m_resolved, allocedBytes);
// Iterate through each frame in the call stack.
for (UINT32 frame = 0; frame < m_size; frame++)
{
// Try to get the source file and line number associated with
// this program counter address.
SIZE_T programCounter = (*this)[frame];
g_symbolLock.Enter();
BOOL foundline = FALSE;
DWORD displacement = 0;
// It turns out that calls to SymGetLineFromAddrW64 may free the very memory we are scrutinizing here
// in this method. If this is the case, m_Resolved will be null after SymGetLineFromAddrW64 returns.
// When that happens there is nothing we can do except crash.
DbgTrace(L"dbghelp32.dll %i: SymGetLineFromAddrW64\n", GetCurrentThreadId());
foundline = SymGetLineFromAddrW64(g_currentProcess, programCounter, &displacement, &sourceInfo);
assert(m_resolved != NULL);
if (foundline && !showInternalFrames) {
wcscpy_s(lowerCaseName, sourceInfo.FileName);
_wcslwr_s(lowerCaseName, wcslen(lowerCaseName) + 1);
if (isInternalModule(lowerCaseName)) {
// Don't show frames in files internal to the heap.
g_symbolLock.Leave();
continue;
}
}
// Initialize structures passed to the symbol handler.
SYMBOL_INFO* functionInfo = (SYMBOL_INFO*)&symbolBuffer;
functionInfo->SizeOfStruct = sizeof(SYMBOL_INFO);
functionInfo->MaxNameLen = MAX_SYMBOL_NAME_LENGTH;
// Try to get the name of the function containing this program
// counter address.
DWORD64 displacement64 = 0;
LPWSTR functionName;
DbgTrace(L"dbghelp32.dll %i: SymFromAddrW\n", GetCurrentThreadId());
if (SymFromAddrW(g_currentProcess, programCounter, &displacement64, functionInfo)) {
functionName = functionInfo->Name;
}
else {
// GetFormattedMessage( GetLastError() );
functionName = L"(Function name unavailable)";
displacement64 = 0;
}
g_symbolLock.Leave();
HMODULE hCallingModule = GetCallingModule(programCounter);
LPWSTR moduleName = L"(Module name unavailable)";
if (hCallingModule &&
GetModuleFileName(hCallingModule, callingModuleName, _countof(callingModuleName)) > 0)
{
moduleName = wcsrchr(callingModuleName, L'\\');
if (moduleName == NULL)
moduleName = wcsrchr(callingModuleName, L'/');
if (moduleName != NULL)
moduleName++;
else
moduleName = callingModuleName;
}
// Use static here to increase performance, and avoid heap allocs. Hopefully this won't
// prove to be an issue in thread safety. If it does, it will have to be simply non-static.
static WCHAR stack_line[max_line_length] = L"";
int NumChars = -1;
// Display the current stack frame's information.
if (foundline) {
// Just truncate anything that is too long.
if (displacement == 0)
NumChars = _snwprintf_s(stack_line, max_line_length, _TRUNCATE, L" %s (%d): %s!%s\n",
sourceInfo.FileName, sourceInfo.LineNumber, moduleName, functionName);
else
NumChars = _snwprintf_s(stack_line, max_line_length, _TRUNCATE, L" %s (%d): %s!%s + 0x%X bytes\n",
sourceInfo.FileName, sourceInfo.LineNumber, moduleName, functionName, displacement);
}
else {
if (displacement64 == 0)
NumChars = _snwprintf_s(stack_line, max_line_length, _TRUNCATE, L" " ADDRESSFORMAT L" (File and line number not available): %s!%s\n",
programCounter, moduleName, functionName);
else
NumChars = _snwprintf_s(stack_line, max_line_length, _TRUNCATE, L" " ADDRESSFORMAT L" (File and line number not available): %s!%s + 0x%X bytes\n",
programCounter, moduleName, functionName, (DWORD)displacement64);
}
if (NumChars >= 0) {
assert(m_resolved != NULL);
m_resolvedLength += NumChars;
wcsncat_s(m_resolved, m_resolvedCapacity, stack_line, NumChars);
}
} // end for loop
}
// dump - Dumps a nicely formatted rendition of the CallStack, including
// symbolic information (function names and line numbers) if available.
//
// Note: The symbol handler must be initialized prior to calling this
// function.
//
// - showinternalframes (IN): If true, then all frames in the CallStack will be
// dumped. Otherwise, frames internal to the heap will not be dumped.
//
// Return Value:
//
// None.
//
void CallStack::dump(BOOL showInternalFrames, UINT start_frame) const
{
// The stack was dumped already
if (m_resolved)
{
dumpResolved();
return;
}
if (m_status & CALLSTACK_STATUS_INCOMPLETE) {
// This call stack appears to be incomplete. Using StackWalk64 may be
// more reliable.
Report(L" HINT: The following call stack may be incomplete. Setting \"StackWalkMethod\"\n"
L" in the vld.ini file to \"safe\" instead of \"fast\" may result in a more\n"
L" complete stack trace.\n");
}
IMAGEHLP_LINE64 sourceInfo = { 0 };
sourceInfo.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
BYTE symbolBuffer [sizeof(SYMBOL_INFO) + MAX_SYMBOL_NAME_SIZE] = { 0 };
WCHAR lowerCaseName [MAX_PATH];
WCHAR callingModuleName [MAX_PATH];
const size_t max_size = MAXREPORTLENGTH + 1;
// Iterate through each frame in the call stack.
for (UINT32 frame = start_frame; frame < m_size; frame++)
{
// Try to get the source file and line number associated with
// this program counter address.
SIZE_T programCounter = (*this)[frame];
g_symbolLock.Enter();
BOOL foundline = FALSE;
DWORD displacement = 0;
DbgTrace(L"dbghelp32.dll %i: SymGetLineFromAddrW64\n", GetCurrentThreadId());
foundline = SymGetLineFromAddrW64(g_currentProcess, programCounter, &displacement, &sourceInfo);
if (foundline && !showInternalFrames) {
wcscpy_s(lowerCaseName, sourceInfo.FileName);
_wcslwr_s(lowerCaseName, wcslen(lowerCaseName) + 1);
if (isInternalModule(lowerCaseName)) {
// Don't show frames in files internal to the heap.
g_symbolLock.Leave();
continue;
}
}
// Initialize structures passed to the symbol handler.
SYMBOL_INFO* functionInfo = (SYMBOL_INFO*)&symbolBuffer;
functionInfo->SizeOfStruct = sizeof(SYMBOL_INFO);
functionInfo->MaxNameLen = MAX_SYMBOL_NAME_LENGTH;
// Try to get the name of the function containing this program
// counter address.
DWORD64 displacement64 = 0;
LPWSTR functionName;
DbgTrace(L"dbghelp32.dll %i: SymFromAddrW\n", GetCurrentThreadId());
if (SymFromAddrW(g_currentProcess, programCounter, &displacement64, functionInfo)) {
functionName = functionInfo->Name;
}
else {
// GetFormattedMessage( GetLastError() );
functionName = L"(Function name unavailable)";
displacement64 = 0;
}
g_symbolLock.Leave();
HMODULE hCallingModule = GetCallingModule(programCounter);
LPWSTR moduleName = L"(Module name unavailable)";
if (hCallingModule &&
GetModuleFileName(hCallingModule, callingModuleName, _countof(callingModuleName)) > 0)
{
moduleName = wcsrchr(callingModuleName, L'\\');
if (moduleName == NULL)
moduleName = wcsrchr(callingModuleName, L'/');
if (moduleName != NULL)
moduleName++;
else
moduleName = callingModuleName;
}
// Use static here to increase performance, and avoid heap allocs. Hopefully this won't
// prove to be an issue in thread safety. If it does, it will have to be simply non-static.
static WCHAR stack_line[MAXREPORTLENGTH + 1] = L"";
int NumChars = -1;
// Display the current stack frame's information.
if (foundline) {
if (displacement == 0)
NumChars = _snwprintf_s(stack_line, max_size, _TRUNCATE, L" %s (%d): %s!%s\n",
sourceInfo.FileName, sourceInfo.LineNumber, moduleName, functionName);
else
NumChars = _snwprintf_s(stack_line, max_size, _TRUNCATE, L" %s (%d): %s!%s + 0x%X bytes\n",
sourceInfo.FileName, sourceInfo.LineNumber, moduleName, functionName, displacement);
}
else {
if (displacement64 == 0)
NumChars = _snwprintf_s(stack_line, max_size, _TRUNCATE, L" " ADDRESSFORMAT L" (File and line number not available): %s!%s\n",
programCounter, moduleName, functionName);
else
NumChars = _snwprintf_s(stack_line, max_size, _TRUNCATE, L" " ADDRESSFORMAT L" (File and line number not available): %s!%s + 0x%X bytes\n",
programCounter, moduleName, functionName, (DWORD)displacement64);
}
Print(stack_line);
}
}
// Resolve - Creates a nicely formatted rendition of the CallStack, including
// symbolic information (function names and line numbers) if available. and
// saves it for later retrieval. This is almost identical to Callstack::dump above.
//
// Note: The symbol handler must be initialized prior to calling this
// function.
//
// - showInternalFrames (IN): If true, then all frames in the CallStack will be
// dumped. Otherwise, frames internal to the heap will not be dumped.
//
// Return Value:
//
// None.
//
int CallStack::resolve(BOOL showInternalFrames)
{
if (m_resolved)
{
// already resolved, no need to do it again
// resolving twice may report an incorrect module for the stack frames
// if the memory was leaked in a dynamic library that was already unloaded.
return 0;
}
if (m_status & CALLSTACK_STATUS_STARTUPCRT) {
// there is no need to resolve a leak that will not be reported
return 0;
}
if (m_status & CALLSTACK_STATUS_INCOMPLETE) {
// This call stack appears to be incomplete. Using StackWalk64 may be
// more reliable.
Report(L" HINT: The following call stack may be incomplete. Setting \"StackWalkMethod\"\n"
L" in the vld.ini file to \"safe\" instead of \"fast\" may result in a more\n"
L" complete stack trace.\n");
}
int unresolvedFunctionsCount = 0;
IMAGEHLP_LINE64 sourceInfo = { 0 };
sourceInfo.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
bool skipStartupLeaks = !!(g_vld.GetOptions() & VLD_OPT_SKIP_CRTSTARTUP_LEAKS);
// Use static here to increase performance, and avoid heap allocs.
// It's thread safe because of g_heapMapLock lock.
static WCHAR stack_line[MAXREPORTLENGTH + 1] = L"";
bool isPrevFrameInternal = false;
bool isDynamicInitializer = false;
DWORD NumChars = 0;
CriticalSectionLocker<DbgHelp> locker(g_DbgHelp);
const size_t max_line_length = MAXREPORTLENGTH + 1;
m_resolvedCapacity = m_size * max_line_length;
const size_t allocedBytes = m_resolvedCapacity * sizeof(WCHAR);
m_resolved = new WCHAR[m_resolvedCapacity];
if (m_resolved) {
ZeroMemory(m_resolved, allocedBytes);
}
// Iterate through each frame in the call stack.
for (UINT32 frame = 0; frame < m_size; frame++)
{
// Try to get the source file and line number associated with
// this program counter address.
SIZE_T programCounter = (*this)[frame];
DWORD displacement = 0;
// It turns out that calls to SymGetLineFromAddrW64 may free the very memory we are scrutinizing here
// in this method. If this is the case, m_Resolved will be null after SymGetLineFromAddrW64 returns.
// When that happens there is nothing we can do except crash.
DbgTrace(L"dbghelp32.dll %i: SymGetLineFromAddrW64\n", GetCurrentThreadId());
BOOL foundline = g_DbgHelp.SymGetLineFromAddrW64(g_currentProcess, programCounter, &displacement, &sourceInfo, locker);
if (skipStartupLeaks && foundline && !isDynamicInitializer &&
!(m_status & CALLSTACK_STATUS_NOTSTARTUPCRT) && isCrtStartupModule(sourceInfo.FileName)) {
m_status |= CALLSTACK_STATUS_STARTUPCRT;
delete[] m_resolved;
m_resolved = NULL;
m_resolvedCapacity = 0;
m_resolvedLength = 0;
return 0;
}
bool isFrameInternal = false;
if (foundline && !showInternalFrames) {
if (isInternalModule(sourceInfo.FileName)) {
// Don't show frames in files internal to the heap.
isFrameInternal = true;
}
}
// show one allocation function for context
if (NumChars > 0 && !isFrameInternal && isPrevFrameInternal) {
m_resolvedLength += NumChars;
if (m_resolved) {
wcsncat_s(m_resolved, m_resolvedCapacity, stack_line, NumChars);
}
}
isPrevFrameInternal = isFrameInternal;
DWORD64 displacement64;
BYTE symbolBuffer[sizeof(SYMBOL_INFO) + MAX_SYMBOL_NAME_SIZE];
LPCWSTR functionName = getFunctionName(programCounter, displacement64, (SYMBOL_INFO*)&symbolBuffer, locker);
if (skipStartupLeaks && foundline && beginWith(functionName, wcslen(functionName), L"`dynamic initializer for '")) {
isDynamicInitializer = true;
}
if (!foundline)
displacement = (DWORD)displacement64;
NumChars = resolveFunction( programCounter, foundline ? &sourceInfo : NULL,
displacement, functionName, stack_line, _countof( stack_line ));
if (NumChars > 0 && !isFrameInternal) {
m_resolvedLength += NumChars;
if (m_resolved) {
wcsncat_s(m_resolved, m_resolvedCapacity, stack_line, NumChars);
}
}
} // end for loop
m_status |= CALLSTACK_STATUS_NOTSTARTUPCRT;
return unresolvedFunctionsCount;
}
// dump - Dumps a nicely formatted rendition of the CallStack, including
// symbolic information (function names and line numbers) if available.
//
// Note: The symbol handler must be initialized prior to calling this
// function.
//
// - showinternalframes (IN): If true, then all frames in the CallStack will be
// dumped. Otherwise, frames internal to the heap will not be dumped.
//
// Return Value:
//
// None.
//
void CallStack::dump(BOOL showInternalFrames, UINT start_frame) const
{
// The stack was dumped already
if (m_resolved)
{
dumpResolved();
return;
}
if (m_status & CALLSTACK_STATUS_INCOMPLETE) {
// This call stack appears to be incomplete. Using StackWalk64 may be
// more reliable.
Report(L" HINT: The following call stack may be incomplete. Setting \"StackWalkMethod\"\n"
L" in the vld.ini file to \"safe\" instead of \"fast\" may result in a more\n"
L" complete stack trace.\n");
}
IMAGEHLP_LINE64 sourceInfo = { 0 };
sourceInfo.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
// Use static here to increase performance, and avoid heap allocs.
// It's thread safe because of g_heapMapLock lock.
static WCHAR stack_line[MAXREPORTLENGTH + 1] = L"";
bool isPrevFrameInternal = false;
CriticalSectionLocker<DbgHelp> locker(g_DbgHelp);
// Iterate through each frame in the call stack.
for (UINT32 frame = start_frame; frame < m_size; frame++)
{
// Try to get the source file and line number associated with
// this program counter address.
SIZE_T programCounter = (*this)[frame];
BOOL foundline = FALSE;
DWORD displacement = 0;
DbgTrace(L"dbghelp32.dll %i: SymGetLineFromAddrW64\n", GetCurrentThreadId());
foundline = g_DbgHelp.SymGetLineFromAddrW64(g_currentProcess, programCounter, &displacement, &sourceInfo, locker);
bool isFrameInternal = false;
if (foundline && !showInternalFrames) {
if (isInternalModule(sourceInfo.FileName))
{
// Don't show frames in files internal to the heap.
isFrameInternal = true;
}
}
// show one allocation function for context
if (!isFrameInternal && isPrevFrameInternal)
Print(stack_line);
isPrevFrameInternal = isFrameInternal;
DWORD64 displacement64;
BYTE symbolBuffer[sizeof(SYMBOL_INFO) + MAX_SYMBOL_NAME_SIZE];
LPCWSTR functionName = getFunctionName(programCounter, displacement64, (SYMBOL_INFO*)&symbolBuffer, locker);
if (!foundline)
displacement = (DWORD)displacement64;
DWORD NumChars = resolveFunction(programCounter, foundline ? &sourceInfo : NULL,
displacement, functionName, stack_line, _countof(stack_line));
UNREFERENCED_PARAMETER(NumChars);
if (!isFrameInternal)
Print(stack_line);
}
}
CodecError CCodec_GT::Compress(CCodecBuffer& bufferIn, CCodecBuffer& bufferOut, Codec_Feedback_Proc pFeedbackProc, DWORD_PTR pUser1, DWORD_PTR pUser2)
{
assert(bufferIn.GetWidth() == bufferOut.GetWidth());
assert(bufferIn.GetHeight() == bufferOut.GetHeight());
if(bufferIn.GetWidth() != bufferOut.GetWidth() || bufferIn.GetHeight() != bufferOut.GetHeight())
return CE_Unknown;
CodecError err = InitializeGTLibrary();
if (err != CE_OK) return err;
#ifdef GT_COMPDEBUGGER
CompViewerClient g_CompClient;
if (g_CompClient.connect())
{
#ifdef USE_DBGTRACE
DbgTrace(("-------> Remote Server Connected"));
#endif
}
#endif
const CMP_DWORD dwBlocksX = ((bufferIn.GetWidth() + 3) >> 2);
const CMP_DWORD dwBlocksY = ((bufferIn.GetHeight() + 3) >> 2);
const CMP_DWORD dwBlocksXY = dwBlocksX*dwBlocksY;
#ifdef USE_DBGTRACE
DbgTrace(("IN : BufferType %d ChannelCount %d ChannelDepth %d",bufferIn.GetBufferType(),bufferIn.GetChannelCount(),bufferIn.GetChannelDepth()));
DbgTrace((" : Height %d Width %d Pitch %d isFloat %d",bufferIn.GetHeight(),bufferIn.GetWidth(),bufferIn.GetWidth(),bufferIn.IsFloat()));
DbgTrace(("OUT: BufferType %d ChannelCount %d ChannelDepth %d",bufferOut.GetBufferType(),bufferOut.GetChannelCount(),bufferOut.GetChannelDepth()));
DbgTrace((" : Height %d Width %d Pitch %d isFloat %d",bufferOut.GetHeight(),bufferOut.GetWidth(),bufferOut.GetWidth(),bufferOut.IsFloat()));
#endif;
char row,col,srcIndex;
CMP_BYTE *pOutBuffer;
pOutBuffer = bufferOut.GetData();
CMP_BYTE* pInBuffer;
pInBuffer = bufferIn.GetData();
DWORD block = 0;
for(CMP_DWORD j = 0; j < dwBlocksY; j++)
{
for(CMP_DWORD i = 0; i < dwBlocksX; i++)
{
BYTE blockToEncode[BLOCK_SIZE_4X4][CHANNEL_SIZE_ARGB];
CMP_BYTE srcBlock[BLOCK_SIZE_4X4X4];
memset(srcBlock,0,sizeof(srcBlock));
bufferIn.ReadBlockRGBA(i*4, j*4, 4, 4, srcBlock);
#ifdef GT_COMPDEBUGGER
g_CompClient.SendData(1,sizeof(srcBlock),srcBlock);
#endif
// Create the block for encoding
srcIndex = 0;
for(row=0; row < BLOCK_SIZE_4; row++)
{
for(col=0; col < BLOCK_SIZE_4; col++)
{
blockToEncode[row*BLOCK_SIZE_4+col][BC_COMP_RED] = srcBlock[srcIndex];
blockToEncode[row*BLOCK_SIZE_4+col][BC_COMP_GREEN] = srcBlock[srcIndex+1];
blockToEncode[row*BLOCK_SIZE_4+col][BC_COMP_BLUE] = srcBlock[srcIndex+2];
blockToEncode[row*BLOCK_SIZE_4+col][BC_COMP_ALPHA] = srcBlock[srcIndex+3];
srcIndex+=4;
}
}
EncodeGTBlock(blockToEncode,pOutBuffer+block);
block += 16;
#ifdef GT_COMPDEBUGGER // Checks decompression it should match or be close to source
union BBLOCKS
{
CMP_DWORD compressedBlock[4];
BYTE out[16];
BYTE in[16];
} data;
memset(data.in,0,sizeof(data));
union DBLOCKS
{
double blockToSave[16][4];
double block[64];
} savedata;
CMP_BYTE destBlock[BLOCK_SIZE_4X4X4];
memset(savedata.block,0,sizeof(savedata));
m_decoder->DecompressBlock(savedata.blockToSave,data.in);
for (row=0; row<64; row++)
{
destBlock[row] = (BYTE)savedata.block[row];
}
g_CompClient.SendData(3,sizeof(destBlock),destBlock);
#endif
}
if(pFeedbackProc)
{
float fProgress = 100.f * (j * dwBlocksX) / dwBlocksXY;
if(pFeedbackProc(fProgress, pUser1, pUser2))
{
#ifdef GT_COMPDEBUGGER
g_CompClient.disconnect();
#endif
FinishGTEncoding();
return CE_Aborted;
}
}
}
#ifdef GT_COMPDEBUGGER
g_CompClient.disconnect();
#endif
return FinishGTEncoding();
}
CodecError CCodec_GT::InitializeGTLibrary()
{
if (!m_LibraryInitialized)
{
for(DWORD i=0; i < MAX_GT_THREADS; i++)
{
m_encoder[i] = NULL;
}
// Create threaded encoder instances
m_LiveThreads = 0;
m_LastThread = 0;
m_NumEncodingThreads = min(m_NumThreads, MAX_GT_THREADS);
if (m_NumEncodingThreads == 0) m_NumEncodingThreads = 1;
m_Use_MultiThreading = m_NumEncodingThreads > 1;
g_EncodeParameterStorage = new GTEncodeThreadParam[m_NumEncodingThreads];
if(!g_EncodeParameterStorage)
{
return CE_Unknown;
}
m_EncodingThreadHandle = new HANDLE[m_NumEncodingThreads];
if(!m_EncodingThreadHandle)
{
delete[] g_EncodeParameterStorage;
g_EncodeParameterStorage = NULL;
return CE_Unknown;
}
DWORD i;
for(i=0; i < m_NumEncodingThreads; i++)
{
// Create single encoder instance
m_encoder[i] = new GTBlockEncoder();
// Cleanup if problem!
if(!m_encoder[i])
{
delete[] g_EncodeParameterStorage;
g_EncodeParameterStorage = NULL;
delete[] m_EncodingThreadHandle;
m_EncodingThreadHandle = NULL;
for(DWORD j=0; j<i; j++)
{
delete m_encoder[j];
m_encoder[j] = NULL;
}
return CE_Unknown;
}
#ifdef USE_DBGTRACE
DbgTrace(("Encoder[%d]:ModeMask %X, Quality %f\n",i,m_ModeMask,m_Quality));
#endif
}
// Create the encoding threads in the suspended state
for(i=0; i<m_NumEncodingThreads; i++)
{
m_EncodingThreadHandle[i] = (HANDLE)_beginthreadex(NULL,
0,
GTThreadProcEncode,
(void*)&g_EncodeParameterStorage[i],
CREATE_SUSPENDED,
NULL);
if(m_EncodingThreadHandle[i])
{
g_EncodeParameterStorage[i].encoder = m_encoder[i];
// Inform the thread that at the moment it doesn't have any work to do
// but that it should wait for some and not exit
g_EncodeParameterStorage[i].run = FALSE;
g_EncodeParameterStorage[i].exit = FALSE;
// Start the thread and have it wait for work
ResumeThread(m_EncodingThreadHandle[i]);
m_LiveThreads++;
}
}
// Create single decoder instance
m_decoder = new GTBlockDecoder();
if(!m_decoder)
{
for(DWORD j=0; j<m_NumEncodingThreads; j++)
{
delete m_encoder[j];
m_encoder[j] = NULL;
}
return CE_Unknown;
}
m_LibraryInitialized = true;
}
return CE_OK;
}
CMP_DWORD CalcBufferSize(CodecType nCodecType, CMP_DWORD dwWidth, CMP_DWORD dwHeight)
{
#ifdef USE_DBGTRACE
DbgTrace(("IN: nCodecType %d, dwWidth %d, dwHeight %d",nCodecType,dwWidth,dwHeight));
#endif
CMP_DWORD dwChannels;
CMP_DWORD dwBitsPerChannel;
CMP_DWORD buffsize = 0;
switch(nCodecType)
{
case CT_DXT1:
case CT_ATI1N:
case CT_ATC_RGB:
case CT_ETC_RGB:
dwChannels = 1;
dwBitsPerChannel = 4;
dwWidth = ((dwWidth + 3) / 4) * 4;
dwHeight = ((dwHeight + 3) / 4) * 4;
buffsize = (dwWidth * dwHeight * dwChannels * dwBitsPerChannel) / 8;
break;
case CT_DXT3:
case CT_DXT5:
case CT_DXT5_xGBR:
case CT_DXT5_RxBG:
case CT_DXT5_RBxG:
case CT_DXT5_xRBG:
case CT_DXT5_RGxB:
case CT_DXT5_xGxR:
case CT_ATI2N:
case CT_ATI2N_XY:
case CT_ATI2N_DXT5:
case CT_ATC_RGBA_Explicit:
case CT_ATC_RGBA_Interpolated:
dwChannels = 2;
dwBitsPerChannel = 4;
dwWidth = ((dwWidth + 3) / 4) * 4;
dwHeight = ((dwHeight + 3) / 4) * 4;
buffsize = (dwWidth * dwHeight * dwChannels * dwBitsPerChannel) / 8;
break;
case CT_BC6H:
dwWidth = ((dwWidth + 3) / 4) * 4;
dwHeight = ((dwHeight + 3) / 4) * 4;
buffsize = dwWidth * dwHeight;
if (buffsize < BC6H_BLOCK_BYTES) buffsize = BC6H_BLOCK_BYTES;
break;
case CT_BC7:
// Fix: July 25 2014 was 4x larger than it should be
// Aug 1: Added increas in buffer size so that its divisable by 4
dwWidth = ((dwWidth + 3) / 4) * 4;
dwHeight = ((dwHeight + 3) / 4) * 4;
buffsize = dwWidth * dwHeight;
if (buffsize < BC7_BLOCK_BYTES) buffsize = BC7_BLOCK_BYTES;
break;
case CT_ASTC: //notes: to be implemented! this is veriable size so addtional code is needed.
dwWidth = ((dwWidth + 3) / 4) * 4;
dwHeight = ((dwHeight + 3) / 4) * 4;
buffsize = dwWidth * dwHeight;
break;
case CT_GT:
// Aug 1: Added increas in buffer size so that its divisable by 4
dwWidth = ((dwWidth + 3) / 4) * 4;
dwHeight = ((dwHeight + 3) / 4) * 4;
buffsize = dwWidth * dwHeight;
if (buffsize < (4*4)) buffsize = 4*4;
break;
default:
return 0;
}
#ifdef USE_DBGTRACE
DbgTrace(("OUT: %d",buffsize));
#endif
return buffsize;
}
CodecError CCodec_BC6H::Compress(CCodecBuffer& bufferIn, CCodecBuffer& bufferOut, Codec_Feedback_Proc pFeedbackProc, DWORD_PTR pUser1, DWORD_PTR pUser2)
{
assert(bufferIn.GetWidth() == bufferOut.GetWidth());
assert(bufferIn.GetHeight() == bufferOut.GetHeight());
if(bufferIn.GetWidth() != bufferOut.GetWidth() || bufferIn.GetHeight() != bufferOut.GetHeight())
return CE_Unknown;
CodecError err = CInitializeBC6HLibrary();
if (err != CE_OK)
return err;
#ifdef BC6H_COMPDEBUGGER
CompViewerClient g_CompClient;
if (g_CompClient.connect())
{
#ifdef USE_DBGTRACE
DbgTrace(("-------> Remote Server Connected"));
#endif
}
#endif
#ifdef BC6H_DEBUG_TO_RESULTS_TXT
g_fp = fopen("AMD_Results.txt","w");
g_block = 0;
#endif
const CMP_DWORD dwBlocksX = ((bufferIn.GetWidth() + 3) >> 2);
const CMP_DWORD dwBlocksY = ((bufferIn.GetHeight() + 3) >> 2);
#ifdef _REMOTE_DEBUG
DbgTrace(("IN : BufferType %d ChannelCount %d ChannelDepth %d",bufferIn.GetBufferType(),bufferIn.GetChannelCount(),bufferIn.GetChannelDepth()));
DbgTrace((" : Height %d Width %d Pitch %d isFloat %d",bufferIn.GetHeight(),bufferIn.GetWidth(),bufferIn.GetWidth(),bufferIn.IsFloat()));
DbgTrace(("OUT: BufferType %d ChannelCount %d ChannelDepth %d",bufferOut.GetBufferType(),bufferOut.GetChannelCount(),bufferOut.GetChannelDepth()));
DbgTrace((" : Height %d Width %d Pitch %d isFloat %d",bufferOut.GetHeight(),bufferOut.GetWidth(),bufferOut.GetWidth(),bufferOut.IsFloat()));
#endif;
char row,col,srcIndex;
CMP_BYTE *pOutBuffer;
pOutBuffer = bufferOut.GetData();
CMP_BYTE* pInBuffer;
pInBuffer = bufferIn.GetData();
DWORD block = 0;
#ifdef _SAVE_AS_BC6
FILE *bc6file = fopen("Test.bc6", "wb");
#endif
for(CMP_DWORD j = 0; j < dwBlocksY; j++)
{
for(CMP_DWORD i = 0; i < dwBlocksX; i++)
{
float blockToEncode[BLOCK_SIZE_4X4][CHANNEL_SIZE_ARGB];
CMP_FLOAT srcBlock[BLOCK_SIZE_4X4X4];
memset(srcBlock,0,sizeof(srcBlock));
bufferIn.ReadBlockRGBA(i*4, j*4, 4, 4, srcBlock);
#ifdef _BC6H_COMPDEBUGGER
g_CompClient.SendData(1,sizeof(srcBlock),srcBlock);
#endif
// Create the block for encoding
srcIndex = 0;
for(row=0; row < BLOCK_SIZE_4; row++)
{
for(col=0; col < BLOCK_SIZE_4; col++)
{
blockToEncode[row*BLOCK_SIZE_4+col][BC6H_COMP_RED] = (float)srcBlock[srcIndex];
blockToEncode[row*BLOCK_SIZE_4+col][BC6H_COMP_GREEN] = (float)srcBlock[srcIndex+1];
blockToEncode[row*BLOCK_SIZE_4+col][BC6H_COMP_BLUE] = (float)srcBlock[srcIndex+2];
blockToEncode[row*BLOCK_SIZE_4+col][BC6H_COMP_ALPHA] = (float)srcBlock[srcIndex+3];
srcIndex+=4;
}
}
union BBLOCKS
{
CMP_DWORD compressedBlock[4];
BYTE out[16];
BYTE in[16];
} data;
memset(data.in,0,sizeof(data));
CEncodeBC6HBlock(blockToEncode,pOutBuffer+block);
#ifdef _SAVE_AS_BC6
if (fwrite(pOutBuffer+block, sizeof(char), 16, bc6file) != 16)
throw "File error on write";
#endif
block += 16;
#ifdef _BC6H_COMPDEBUGGER // Checks decompression it should match or be close to source
union DBLOCKS
{
float blockToSave[16][4];
float block[64];
} savedata;
CMP_BYTE destBlock[BLOCK_SIZE_4X4X4];
memset(savedata.block,0,sizeof(savedata));
m_decoder->DecompressBlock(savedata.blockToSave,data.in);
for (row=0; row<64; row++)
{
destBlock[row] = (BYTE)savedata.block[row];
}
g_CompClient.SendData(3,sizeof(destBlock),destBlock);
#endif
if(pFeedbackProc)
{
float fProgress = 100.f * (j * dwBlocksX) / (dwBlocksX * dwBlocksY);
if(pFeedbackProc(fProgress, pUser1, pUser2))
{
#ifdef _BC6H_COMPDEBUGGER
g_CompClient.disconnect();
#endif
CFinishBC6HEncoding();
return CE_Aborted;
}
}
}
}
#ifdef _SAVE_AS_BC6
if (fclose(bc6file)) throw "Close failed on .bc6 file";
#endif
#ifdef BC6H_COMPDEBUGGER
g_CompClient.disconnect();
#endif
#ifdef BC6H_DEBUG_TO_RESULTS_TXT
if (g_fp)
fclose(g_fp);
#endif
if(pFeedbackProc)
{
float fProgress = 100.f;
pFeedbackProc(fProgress, pUser1, pUser2);
}
return CFinishBC6HEncoding();
}
CodecError CCodec_BC6H::CInitializeBC6HLibrary()
{
if (!m_LibraryInitialized)
{
// This is shared between BC7 also
// and checked for initialization based on static flag
// See the function for details.
Quant_Init();
// One time initialisation for quantizer and shaker
// check this is ok to remove for when we are encoding
// should have no effect on decoding
BC6H_init_ramps();
for(DWORD i=0; i < BC6H_MAX_THREADS; i++)
{
m_encoder[i] = NULL;
}
// Create threaded encoder instances
m_LiveThreads = 0;
m_LastThread = 0;
m_NumEncodingThreads = min(m_NumThreads, BC6H_MAX_THREADS);
if (m_NumEncodingThreads == 0) m_NumEncodingThreads = 1;
m_Use_MultiThreading = m_NumEncodingThreads > 1;
g_BC6EncodeParameterStorage = new BC6HEncodeThreadParam[m_NumEncodingThreads];
if(!g_BC6EncodeParameterStorage)
{
return CE_Unknown;
}
for (int i=0; i<m_NumEncodingThreads; i++)
g_BC6EncodeParameterStorage[i].run = false;
m_EncodingThreadHandle = new HANDLE[m_NumEncodingThreads];
if(!m_EncodingThreadHandle)
{
delete[] g_BC6EncodeParameterStorage;
g_BC6EncodeParameterStorage = NULL;
return CE_Unknown;
}
for(int i=0; i < m_NumEncodingThreads; i++)
{
// Create single encoder instance
CMP_BC6H_BLOCK_PARAMETERS user_options;
user_options.bIsSigned = m_bIsSigned;
user_options.fQuality = m_Quality;
user_options.dwMask = m_ModeMask;
user_options.fExposure = m_Exposure;
user_options.bUsePatternRec = m_UsePatternRec;
m_encoder[i] = new BC6HBlockEncoder(user_options);
// Cleanup if problem!
if(!m_encoder[i])
{
delete[] g_BC6EncodeParameterStorage;
g_BC6EncodeParameterStorage = NULL;
delete[] m_EncodingThreadHandle;
m_EncodingThreadHandle = NULL;
for(int j=0; j<i; j++)
{
delete m_encoder[j];
m_encoder[j] = NULL;
}
return CE_Unknown;
}
#ifdef USE_DBGTRACE
DbgTrace(("Encoder[%d]:ModeMask %X, Quality %f\n",i,m_ModeMask,m_Quality));
#endif
}
// Create the encoding threads in the suspended state
for(int i=0; i<m_NumEncodingThreads; i++)
{
m_EncodingThreadHandle[i] = (HANDLE)_beginthreadex(NULL,
0,
BC6HThreadProcEncode,
(void*)&g_BC6EncodeParameterStorage[i],
CREATE_SUSPENDED,
NULL);
if(m_EncodingThreadHandle[i])
{
g_BC6EncodeParameterStorage[i].encoder = m_encoder[i];
// Inform the thread that at the moment it doesn't have any work to do
// but that it should wait for some and not exit
g_BC6EncodeParameterStorage[i].run = FALSE;
g_BC6EncodeParameterStorage[i].exit = FALSE;
// Start the thread and have it wait for work
ResumeThread(m_EncodingThreadHandle[i]);
m_LiveThreads++;
}
}
// Create single decoder instance
m_decoder = new BC6HBlockDecoder();
if(!m_decoder)
{
for(DWORD j=0; j<m_NumEncodingThreads; j++)
{
delete m_encoder[j];
m_encoder[j] = NULL;
}
return CE_Unknown;
}
m_LibraryInitialized = true;
}
return CE_OK;
}
