// Return the size in bytes of a given formatter
static
int trueBytesSize(cmsUInt32Number Format)
{
int fmt_bytes = T_BYTES(Format);
// For double, the T_BYTES field returns zero
if (fmt_bytes == 0)
return sizeof(double);
// Otherwise, it is already correct for all formats
return fmt_bytes;
}
// Returns the position (x or y) of the formatter in the table of functions
static
int FormatterPos(cmsUInt32Number frm)
{
int b = T_BYTES(frm);
if (b == 0 && T_FLOAT(frm))
return 4; // DBL
if (b == 2 && T_FLOAT(frm))
return 2; // HLF
if (b == 4 && T_FLOAT(frm))
return 3; // FLT
if (b == 2 && !T_FLOAT(frm))
return 1; // 16
if (b == 1 && !T_FLOAT(frm))
return 0; // 8
return -1; // not recognized
}
// Allocate transform struct and set it to defaults. Ask the optimization plug-in about if those formats are proper
// for separated transforms. If this is the case,
static
_cmsTRANSFORM* AllocEmptyTransform(cmsContext ContextID, cmsPipeline* lut,
cmsUInt32Number Intent, cmsUInt32Number* InputFormat, cmsUInt32Number* OutputFormat, cmsUInt32Number* dwFlags)
{
_cmsTransformPluginChunkType* ctx = ( _cmsTransformPluginChunkType*) _cmsContextGetClientChunk(ContextID, TransformPlugin);
_cmsTransformCollection* Plugin;
// Allocate needed memory
_cmsTRANSFORM* p = (_cmsTRANSFORM*)_cmsMallocZero(ContextID, sizeof(_cmsTRANSFORM));
if (!p) {
cmsPipelineFree(lut);
return NULL;
}
// Store the proposed pipeline
p->Lut = lut;
// Let's see if any plug-in want to do the transform by itself
if (p->Lut != NULL) {
for (Plugin = ctx->TransformCollection;
Plugin != NULL;
Plugin = Plugin->Next) {
if (Plugin->Factory(&p->xform, &p->UserData, &p->FreeUserData, &p->Lut, InputFormat, OutputFormat, dwFlags)) {
// Last plugin in the declaration order takes control. We just keep
// the original parameters as a logging.
// Note that cmsFLAGS_CAN_CHANGE_FORMATTER is not set, so by default
// an optimized transform is not reusable. The plug-in can, however, change
// the flags and make it suitable.
p->ContextID = ContextID;
p->InputFormat = *InputFormat;
p->OutputFormat = *OutputFormat;
p->dwOriginalFlags = *dwFlags;
// Fill the formatters just in case the optimized routine is interested.
// No error is thrown if the formatter doesn't exist. It is up to the optimization
// factory to decide what to do in those cases.
p->FromInput = _cmsGetFormatter(ContextID, *InputFormat, cmsFormatterInput, CMS_PACK_FLAGS_16BITS).Fmt16;
p->ToOutput = _cmsGetFormatter(ContextID, *OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_16BITS).Fmt16;
p->FromInputFloat = _cmsGetFormatter(ContextID, *InputFormat, cmsFormatterInput, CMS_PACK_FLAGS_FLOAT).FmtFloat;
p->ToOutputFloat = _cmsGetFormatter(ContextID, *OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_FLOAT).FmtFloat;
// Save the day?
if (Plugin->OldXform) {
p->OldXform = (_cmsTransformFn) p->xform;
p->xform = _cmsTransform2toTransformAdaptor;
}
return p;
}
}
// Not suitable for the transform plug-in, let's check the pipeline plug-in
_cmsOptimizePipeline(ContextID, &p->Lut, Intent, InputFormat, OutputFormat, dwFlags);
}
// Check whatever this is a true floating point transform
if (_cmsFormatterIsFloat(*InputFormat) && _cmsFormatterIsFloat(*OutputFormat)) {
// Get formatter function always return a valid union, but the contents of this union may be NULL.
p ->FromInputFloat = _cmsGetFormatter(ContextID, *InputFormat, cmsFormatterInput, CMS_PACK_FLAGS_FLOAT).FmtFloat;
p ->ToOutputFloat = _cmsGetFormatter(ContextID, *OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_FLOAT).FmtFloat;
*dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER;
if (p ->FromInputFloat == NULL || p ->ToOutputFloat == NULL) {
cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported raster format");
cmsDeleteTransform(p);
return NULL;
}
if (*dwFlags & cmsFLAGS_NULLTRANSFORM) {
p ->xform = NullFloatXFORM;
}
else {
// Float transforms don't use cache, always are non-NULL
p ->xform = FloatXFORM;
}
}
else {
if (*InputFormat == 0 && *OutputFormat == 0) {
p ->FromInput = p ->ToOutput = NULL;
*dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER;
}
else {
int BytesPerPixelInput;
p ->FromInput = _cmsGetFormatter(ContextID, *InputFormat, cmsFormatterInput, CMS_PACK_FLAGS_16BITS).Fmt16;
p ->ToOutput = _cmsGetFormatter(ContextID, *OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_16BITS).Fmt16;
if (p ->FromInput == NULL || p ->ToOutput == NULL) {
cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported raster format");
cmsDeleteTransform(p);
return NULL;
}
BytesPerPixelInput = T_BYTES(p ->InputFormat);
if (BytesPerPixelInput == 0 || BytesPerPixelInput >= 2)
*dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER;
}
if (*dwFlags & cmsFLAGS_NULLTRANSFORM) {
p ->xform = NullXFORM;
}
else {
if (*dwFlags & cmsFLAGS_NOCACHE) {
if (*dwFlags & cmsFLAGS_GAMUTCHECK)
p ->xform = PrecalculatedXFORMGamutCheck; // Gamut check, no cache
else
p ->xform = PrecalculatedXFORM; // No cache, no gamut check
}
else {
if (*dwFlags & cmsFLAGS_GAMUTCHECK)
p ->xform = CachedXFORMGamutCheck; // Gamut check, cache
else
p ->xform = CachedXFORM; // No gamut check, cache
}
}
}
p ->InputFormat = *InputFormat;
p ->OutputFormat = *OutputFormat;
p ->dwOriginalFlags = *dwFlags;
p ->ContextID = ContextID;
p ->UserData = NULL;
return p;
}
// Allocate transform struct and set it to defaults. Ask the optimization plug-in about if those formats are proper
// for separated transforms. If this is the case,
static
_cmsTRANSFORM* AllocEmptyTransform(cmsContext ContextID, cmsPipeline* lut,
cmsUInt32Number Intent, cmsUInt32Number* InputFormat, cmsUInt32Number* OutputFormat, cmsUInt32Number* dwFlags)
{
_cmsTransformCollection* Plugin;
// Allocate needed memory
_cmsTRANSFORM* p = (_cmsTRANSFORM*) _cmsMallocZero(ContextID, sizeof(_cmsTRANSFORM));
if (!p) return NULL;
// Store the proposed pipeline
p ->Lut = lut;
// Let's see if any plug-in want to do the transform by itself
for (Plugin = TransformCollection;
Plugin != NULL;
Plugin = Plugin ->Next) {
if (Plugin ->Factory(&p->xform, &p->UserData, &p ->FreeUserData, &p ->Lut, InputFormat, OutputFormat, dwFlags))
{
// Last plugin in the declaration order takes control. We just keep
// the original parameters as a logging
p ->InputFormat = *InputFormat;
p ->OutputFormat = *OutputFormat;
p ->dwOriginalFlags = *dwFlags;
p ->ContextID = ContextID;
return p;
}
}
// Not suitable for the transform plug-in, let's check the pipeline plug-in
if (p ->Lut != NULL)
_cmsOptimizePipeline(&p->Lut, Intent, InputFormat, OutputFormat, dwFlags);
// Check whatever this is a true floating point transform
if (_cmsFormatterIsFloat(*InputFormat) && _cmsFormatterIsFloat(*OutputFormat)) {
// Get formatter function always return a valid union, but the contents of this union may be NULL.
p ->FromInputFloat = _cmsGetFormatter(*InputFormat, cmsFormatterInput, CMS_PACK_FLAGS_FLOAT).FmtFloat;
p ->ToOutputFloat = _cmsGetFormatter(*OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_FLOAT).FmtFloat;
*dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER;
if (p ->FromInputFloat == NULL || p ->ToOutputFloat == NULL) {
cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported raster format");
_cmsFree(ContextID, p);
return NULL;
}
// Float transforms don't use caché, always are non-NULL
p ->xform = FloatXFORM;
}
else {
if (*InputFormat == 0 && *OutputFormat == 0) {
p ->FromInput = p ->ToOutput = NULL;
*dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER;
}
else {
int BytesPerPixelInput;
p ->FromInput = _cmsGetFormatter(*InputFormat, cmsFormatterInput, CMS_PACK_FLAGS_16BITS).Fmt16;
p ->ToOutput = _cmsGetFormatter(*OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_16BITS).Fmt16;
if (p ->FromInput == NULL || p ->ToOutput == NULL) {
cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported raster format");
_cmsFree(ContextID, p);
return NULL;
}
BytesPerPixelInput = T_BYTES(p ->InputFormat);
if (BytesPerPixelInput == 0 || BytesPerPixelInput >= 2)
*dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER;
}
if (*dwFlags & cmsFLAGS_NULLTRANSFORM) {
p ->xform = NullXFORM;
}
else {
if (*dwFlags & cmsFLAGS_NOCACHE) {
if (*dwFlags & cmsFLAGS_GAMUTCHECK)
p ->xform = PrecalculatedXFORMGamutCheck; // Gamut check, no caché
else
p ->xform = PrecalculatedXFORM; // No caché, no gamut check
}
else {
if (*dwFlags & cmsFLAGS_GAMUTCHECK)
p ->xform = CachedXFORMGamutCheck; // Gamut check, caché
else
p ->xform = CachedXFORM; // No gamut check, caché
}
}
}
p ->InputFormat = *InputFormat;
p ->OutputFormat = *OutputFormat;
p ->dwOriginalFlags = *dwFlags;
p ->ContextID = ContextID;
p ->UserData = NULL;
return p;
}
