/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% S e t Q u a n t u m D e p t h %
% %
% %
% %
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%
% SetQuantumDepth() sets the quantum depth.
%
% The format of the SetQuantumDepth method is:
%
% MagickBooleanType SetQuantumDepth(const Image *image,
% QuantumInfo *quantum_info,const size_t depth)
%
% A description of each parameter follows:
%
% o image: the image.
%
% o quantum_info: the quantum info.
%
% o depth: the quantum depth.
%
*/
MagickExport MagickBooleanType SetQuantumDepth(const Image *image,
QuantumInfo *quantum_info,const size_t depth)
{
MagickBooleanType
status;
/*
Allocate the quantum pixel buffer.
*/
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
assert(quantum_info != (QuantumInfo *) NULL);
assert(quantum_info->signature == MagickSignature);
quantum_info->depth=depth;
if (quantum_info->format == FloatingPointQuantumFormat)
{
if (quantum_info->depth > 32)
quantum_info->depth=64;
else
if (quantum_info->depth > 16)
quantum_info->depth=32;
else
quantum_info->depth=16;
}
if (quantum_info->pixels != (unsigned char **) NULL)
DestroyQuantumPixels(quantum_info);
status=AcquireQuantumPixels(quantum_info,(6+quantum_info->pad)*image->columns*
((quantum_info->depth+7)/8)); /* allow for CMYKA + RLE byte + pad */
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% S e t Q u a n t u m D e p t h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% SetQuantumDepth() sets the quantum depth.
%
% The format of the SetQuantumDepth method is:
%
% MagickBooleanType SetQuantumDepth(const Image *image,
% QuantumInfo *quantum_info,const size_t depth)
%
% A description of each parameter follows:
%
% o image: the image.
%
% o quantum_info: the quantum info.
%
% o depth: the quantum depth.
%
*/
MagickExport MagickBooleanType SetQuantumDepth(const Image *image,
QuantumInfo *quantum_info,const size_t depth)
{
size_t
extent,
quantum;
/*
Allocate the quantum pixel buffer.
*/
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
assert(quantum_info != (QuantumInfo *) NULL);
assert(quantum_info->signature == MagickSignature);
quantum_info->depth=depth;
if (quantum_info->format == FloatingPointQuantumFormat)
{
if (quantum_info->depth > 32)
quantum_info->depth=64;
else if (quantum_info->depth > 16)
quantum_info->depth=32;
else
quantum_info->depth=16;
}
if (quantum_info->pixels != (unsigned char **) NULL)
DestroyQuantumPixels(quantum_info);
quantum=(quantum_info->pad+6)*(quantum_info->depth+7)/8;
extent=image->columns*quantum;
if (quantum != (extent/image->columns))
return(MagickFalse);
return(AcquireQuantumPixels(quantum_info,extent));
}