% Read/Write High Dynamic-Range (HDR) Image File Format %
% %
% Software Design %
-% John Cristy %
+% Cristy %
% April 2007 %
% %
% %
-% Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization %
+% Copyright 1999-2017 ImageMagick Studio LLC, a non-profit organization %
% dedicated to making software imaging solutions freely available. %
% %
% You may not use this file except in compliance with the License. You may %
% obtain a copy of the License at %
% %
-% http://www.imagemagick.org/script/license.php %
+% https://www.imagemagick.org/script/license.php %
% %
% Unless required by applicable law or agreed to in writing, software %
% distributed under the License is distributed on an "AS IS" BASIS, %
#include "MagickCore/list.h"
#include "MagickCore/magick.h"
#include "MagickCore/memory_.h"
+#include "MagickCore/option.h"
#include "MagickCore/pixel-accessor.h"
#include "MagickCore/property.h"
#include "MagickCore/quantum-private.h"
#if defined(MAGICKCORE_OPENEXR_DELEGATE)
#include <ImfCRgbaFile.h>
\f
+/*
+ Typedef declaractions.
+*/
+typedef struct _ExrWindow
+{
+ int
+ max_x,
+ max_y,
+ min_x,
+ min_y;
+} ExrWindow;
+
/*
Forward declarations.
*/
*/
static Image *ReadEXRImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
+ ExrWindow
+ data_window,
+ display_window;
+
const ImfHeader
*hdr_info;
ImfRgba
*scanline;
- int
- max_x,
- max_y,
- min_x,
- min_y;
-
MagickBooleanType
status;
*q;
ssize_t
+ columns,
y;
/*
Open image.
*/
assert(image_info != (const ImageInfo *) NULL);
- assert(image_info->signature == MagickSignature);
+ assert(image_info->signature == MagickCoreSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
- assert(exception->signature == MagickSignature);
+ assert(exception->signature == MagickCoreSignature);
image=AcquireImage(image_info,exception);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
ThrowFileException(exception,BlobError,"UnableToOpenBlob",
ImfErrorMessage());
+ if (LocaleCompare(image_info->filename,read_info->filename) != 0)
+ (void) RelinquishUniqueFileResource(read_info->filename);
read_info=DestroyImageInfo(read_info);
+ image=DestroyImageList(image);
return((Image *) NULL);
}
hdr_info=ImfInputHeader(file);
- ImfHeaderDataWindow(hdr_info,&min_x,&min_y,&max_x,&max_y);
- image->columns=max_x-min_x+1UL;
- image->rows=max_y-min_y+1UL;
- image->matte=MagickTrue;
+ ImfHeaderDisplayWindow(hdr_info,&display_window.min_x,&display_window.min_y,
+ &display_window.max_x,&display_window.max_y);
+ image->columns=display_window.max_x-display_window.min_x+1UL;
+ image->rows=display_window.max_y-display_window.min_y+1UL;
+ image->alpha_trait=BlendPixelTrait;
+ SetImageColorspace(image,RGBColorspace,exception);
+ image->gamma=1.0;
if (image_info->ping != MagickFalse)
{
(void) ImfCloseInputFile(file);
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
- scanline=(ImfRgba *) AcquireQuantumMemory(image->columns,sizeof(*scanline));
- if (scanline == (ImfRgba *) NULL)
+ status=SetImageExtent(image,image->columns,image->rows,exception);
+ if (status == MagickFalse)
+ return(DestroyImageList(image));
+ ImfHeaderDataWindow(hdr_info,&data_window.min_x,&data_window.min_y,
+ &data_window.max_x,&data_window.max_y);
+ columns=(ssize_t) data_window.max_x-data_window.min_x+1UL;
+ if ((display_window.min_x > data_window.max_x) ||
+ (display_window.min_x+(int) image->columns <= data_window.min_x))
+ scanline=(ImfRgba *) NULL;
+ else
{
- (void) ImfCloseInputFile(file);
- ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
+ scanline=(ImfRgba *) AcquireQuantumMemory(columns,sizeof(*scanline));
+ if (scanline == (ImfRgba *) NULL)
+ {
+ (void) ImfCloseInputFile(file);
+ if (LocaleCompare(image_info->filename,read_info->filename) != 0)
+ (void) RelinquishUniqueFileResource(read_info->filename);
+ read_info=DestroyImageInfo(read_info);
+ image=DestroyImageList(image);
+ ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
+ }
}
for (y=0; y < (ssize_t) image->rows; y++)
{
+ int
+ yy;
+
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (Quantum *) NULL)
break;
- ImfInputSetFrameBuffer(file,scanline-min_x-image->columns*(min_y+y),1,
- image->columns);
- ImfInputReadPixels(file,min_y+y,min_y+y);
+ yy=display_window.min_y+y;
+ if ((yy < data_window.min_y) || (yy > data_window.max_y) ||
+ (scanline == (ImfRgba *) NULL))
+ {
+ for (x=0; x < (ssize_t) image->columns; x++)
+ {
+ SetPixelViaPixelInfo(image,&image->background_color,q);
+ q+=GetPixelChannels(image);
+ }
+ continue;
+ }
+ ResetMagickMemory(scanline,0,columns*sizeof(*scanline));
+ ImfInputSetFrameBuffer(file,scanline-data_window.min_x-columns*yy,1,
+ columns);
+ ImfInputReadPixels(file,yy,yy);
for (x=0; x < (ssize_t) image->columns; x++)
{
- SetPixelRed(image,ClampToQuantum((MagickRealType) QuantumRange*
- ImfHalfToFloat(scanline[x].r)),q);
- SetPixelGreen(image,ClampToQuantum((MagickRealType) QuantumRange*
- ImfHalfToFloat(scanline[x].g)),q);
- SetPixelBlue(image,ClampToQuantum((MagickRealType) QuantumRange*
- ImfHalfToFloat(scanline[x].b)),q);
- SetPixelAlpha(image,ClampToQuantum((MagickRealType) QuantumRange*
- ImfHalfToFloat(scanline[x].a)),q);
+ int
+ xx;
+
+ xx=display_window.min_x+((int) x-data_window.min_x);
+ if ((xx < 0) || (display_window.min_x+(int) x > data_window.max_x))
+ SetPixelViaPixelInfo(image,&image->background_color,q);
+ else
+ {
+ SetPixelRed(image,ClampToQuantum((MagickRealType) QuantumRange*
+ ImfHalfToFloat(scanline[xx].r)),q);
+ SetPixelGreen(image,ClampToQuantum((MagickRealType) QuantumRange*
+ ImfHalfToFloat(scanline[xx].g)),q);
+ SetPixelBlue(image,ClampToQuantum((MagickRealType) QuantumRange*
+ ImfHalfToFloat(scanline[xx].b)),q);
+ SetPixelAlpha(image,ClampToQuantum((MagickRealType) QuantumRange*
+ ImfHalfToFloat(scanline[xx].a)),q);
+ }
q+=GetPixelChannels(image);
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
MagickInfo
*entry;
- entry=SetMagickInfo("EXR");
+ entry=AcquireMagickInfo("EXR","EXR","High Dynamic-range (HDR)");
#if defined(MAGICKCORE_OPENEXR_DELEGATE)
entry->decoder=(DecodeImageHandler *) ReadEXRImage;
entry->encoder=(EncodeImageHandler *) WriteEXRImage;
#endif
entry->magick=(IsImageFormatHandler *) IsEXR;
- entry->adjoin=MagickFalse;
- entry->description=ConstantString("High Dynamic-range (HDR)");
- entry->blob_support=MagickFalse;
- entry->module=ConstantString("EXR");
+ entry->flags^=CoderAdjoinFlag;
+ entry->flags^=CoderBlobSupportFlag;
(void) RegisterMagickInfo(entry);
return(MagickImageCoderSignature);
}
static MagickBooleanType WriteEXRImage(const ImageInfo *image_info,Image *image,
ExceptionInfo *exception)
{
+ const char
+ *sampling_factor,
+ *value;
+
ImageInfo
*write_info;
*scanline;
int
- compression;
+ channels,
+ compression,
+ factors[3];
MagickBooleanType
status;
Open output image file.
*/
assert(image_info != (const ImageInfo *) NULL);
- assert(image_info->signature == MagickSignature);
+ assert(image_info->signature == MagickCoreSignature);
assert(image != (Image *) NULL);
- assert(image->signature == MagickSignature);
+ assert(image->signature == MagickCoreSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
assert(exception != (ExceptionInfo *) NULL);
- assert(exception->signature == MagickSignature);
+ assert(exception->signature == MagickCoreSignature);
status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
if (status == MagickFalse)
return(status);
+ (void) SetImageColorspace(image,RGBColorspace,exception);
write_info=CloneImageInfo(image_info);
(void) AcquireUniqueFilename(write_info->filename);
hdr_info=ImfNewHeader();
if (write_info->compression == B44ACompression)
compression=IMF_B44A_COMPRESSION;
#endif
+ channels=0;
+ value=GetImageOption(image_info,"exr:color-type");
+ if (value != (const char *) NULL)
+ {
+ if (LocaleCompare(value,"RGB") == 0)
+ channels=IMF_WRITE_RGB;
+ else if (LocaleCompare(value,"RGBA") == 0)
+ channels=IMF_WRITE_RGBA;
+ else if (LocaleCompare(value,"YC") == 0)
+ channels=IMF_WRITE_YC;
+ else if (LocaleCompare(value,"YCA") == 0)
+ channels=IMF_WRITE_YCA;
+ else if (LocaleCompare(value,"Y") == 0)
+ channels=IMF_WRITE_Y;
+ else if (LocaleCompare(value,"YA") == 0)
+ channels=IMF_WRITE_YA;
+ else if (LocaleCompare(value,"R") == 0)
+ channels=IMF_WRITE_R;
+ else if (LocaleCompare(value,"G") == 0)
+ channels=IMF_WRITE_G;
+ else if (LocaleCompare(value,"B") == 0)
+ channels=IMF_WRITE_B;
+ else if (LocaleCompare(value,"A") == 0)
+ channels=IMF_WRITE_A;
+ else
+ (void) ThrowMagickException(exception,GetMagickModule(),CoderWarning,
+ "ignoring invalid defined exr:color-type","=%s",value);
+ }
+ sampling_factor=(const char *) NULL;
+ factors[0]=0;
+ if (image_info->sampling_factor != (char *) NULL)
+ sampling_factor=image_info->sampling_factor;
+ if (sampling_factor != NULL)
+ {
+ /*
+ Sampling factors, valid values are 1x1 or 2x2.
+ */
+ if (sscanf(sampling_factor,"%d:%d:%d",factors,factors+1,factors+2) == 3)
+ {
+ if ((factors[0] == factors[1]) && (factors[1] == factors[2]))
+ factors[0]=1;
+ else
+ if ((factors[0] == (2*factors[1])) && (factors[2] == 0))
+ factors[0]=2;
+ }
+ else
+ if (sscanf(sampling_factor,"%dx%d",factors,factors+1) == 2)
+ {
+ if (factors[0] != factors[1])
+ factors[0]=0;
+ }
+ if ((factors[0] != 1) && (factors[0] != 2))
+ (void) ThrowMagickException(exception,GetMagickModule(),CoderWarning,
+ "ignoring sampling-factor","=%s",sampling_factor);
+ else if (channels != 0)
+ {
+ /*
+ Cross check given color type and subsampling.
+ */
+ factors[1]=((channels == IMF_WRITE_YCA) ||
+ (channels == IMF_WRITE_YC)) ? 2 : 1;
+ if (factors[0] != factors[1])
+ (void) ThrowMagickException(exception,GetMagickModule(),
+ CoderWarning,"sampling-factor and color type mismatch","=%s",
+ sampling_factor);
+ }
+ }
+ if (channels == 0)
+ {
+ /*
+ If no color type given, select it now.
+ */
+ if (factors[0] == 2)
+ channels=image->alpha_trait != UndefinedPixelTrait ? IMF_WRITE_YCA :
+ IMF_WRITE_YC;
+ else
+ channels=image->alpha_trait != UndefinedPixelTrait ? IMF_WRITE_RGBA :
+ IMF_WRITE_RGB;
+ }
ImfHeaderSetCompression(hdr_info,compression);
ImfHeaderSetLineOrder(hdr_info,IMF_INCREASING_Y);
- file=ImfOpenOutputFile(write_info->filename,hdr_info,IMF_WRITE_RGBA);
+ file=ImfOpenOutputFile(write_info->filename,hdr_info,channels);
ImfDeleteHeader(hdr_info);
if (file == (ImfOutputFile *) NULL)
{
+ (void) RelinquishUniqueFileResource(write_info->filename);
+ write_info=DestroyImageInfo(write_info);
ThrowFileException(exception,BlobError,"UnableToOpenBlob",
ImfErrorMessage());
- write_info=DestroyImageInfo(write_info);
return(MagickFalse);
}
scanline=(ImfRgba *) AcquireQuantumMemory(image->columns,sizeof(*scanline));
if (scanline == (ImfRgba *) NULL)
{
(void) ImfCloseOutputFile(file);
+ (void) RelinquishUniqueFileResource(write_info->filename);
+ write_info=DestroyImageInfo(write_info);
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
}
+ ResetMagickMemory(scanline,0,image->columns*sizeof(*scanline));
for (y=0; y < (ssize_t) image->rows; y++)
{
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
scanline[x].g=half_quantum;
ImfFloatToHalf(QuantumScale*GetPixelBlue(image,p),&half_quantum);
scanline[x].b=half_quantum;
- if (image->matte == MagickFalse)
+ if (image->alpha_trait == UndefinedPixelTrait)
ImfFloatToHalf(1.0,&half_quantum);
else
ImfFloatToHalf(QuantumScale*GetPixelAlpha(image,p),&half_quantum);
projects / imagemagick / blobdiff