% Read/Write Truevision Targa Image Format %
% %
% Software Design %
-% John Cristy %
+% Cristy %
% July 1992 %
% %
% %
-% Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization %
+% Copyright 1999-2014 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 %
/*
Include declarations.
*/
-#include "magick/studio.h"
-#include "magick/blob.h"
-#include "magick/blob-private.h"
-#include "magick/cache.h"
-#include "magick/color-private.h"
-#include "magick/colormap-private.h"
-#include "magick/colorspace.h"
-#include "magick/exception.h"
-#include "magick/exception-private.h"
-#include "magick/image.h"
-#include "magick/image-private.h"
-#include "magick/list.h"
-#include "magick/magick.h"
-#include "magick/memory_.h"
-#include "magick/monitor.h"
-#include "magick/monitor-private.h"
-#include "magick/property.h"
-#include "magick/quantum-private.h"
-#include "magick/static.h"
-#include "magick/string_.h"
-#include "magick/module.h"
+#include "MagickCore/studio.h"
+#include "MagickCore/attribute.h"
+#include "MagickCore/blob.h"
+#include "MagickCore/blob-private.h"
+#include "MagickCore/cache.h"
+#include "MagickCore/color-private.h"
+#include "MagickCore/colormap.h"
+#include "MagickCore/colormap-private.h"
+#include "MagickCore/colorspace.h"
+#include "MagickCore/colorspace-private.h"
+#include "MagickCore/exception.h"
+#include "MagickCore/exception-private.h"
+#include "MagickCore/image.h"
+#include "MagickCore/image-private.h"
+#include "MagickCore/list.h"
+#include "MagickCore/magick.h"
+#include "MagickCore/memory_.h"
+#include "MagickCore/monitor.h"
+#include "MagickCore/monitor-private.h"
+#include "MagickCore/pixel-accessor.h"
+#include "MagickCore/property.h"
+#include "MagickCore/quantum-private.h"
+#include "MagickCore/static.h"
+#include "MagickCore/string_.h"
+#include "MagickCore/module.h"
\f
/*
Forward declarations.
*/
static MagickBooleanType
- WriteTGAImage(const ImageInfo *,Image *);
+ WriteTGAImage(const ImageInfo *,Image *,ExceptionInfo *);
\f
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Image
*image;
- IndexPacket
- index;
-
- long
- y;
-
MagickBooleanType
status;
- PixelPacket
+ PixelInfo
pixel;
- register IndexPacket
- *indexes;
+ Quantum
+ index;
+
+ register Quantum
+ *q;
- register long
+ register ssize_t
i,
x;
- register PixelPacket
- *q;
+ size_t
+ base,
+ flag,
+ offset,
+ real,
+ skip;
ssize_t
- count;
+ count,
+ y;
TGAInfo
tga_info;
unsigned char
j,
k,
+ pixels[4],
runlength;
- unsigned long
- base,
- flag,
- offset,
- real,
- skip;
+ unsigned int
+ alpha_bits;
/*
Open image file.
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
- image=AcquireImage(image_info);
+ image=AcquireImage(image_info,exception);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
count=ReadBlob(image,1,&tga_info.id_length);
tga_info.colormap_type=(unsigned char) ReadBlobByte(image);
tga_info.image_type=(unsigned char) ReadBlobByte(image);
- do
- {
- if ((count != 1) ||
- ((tga_info.image_type != TGAColormap) &&
- (tga_info.image_type != TGARGB) &&
- (tga_info.image_type != TGAMonochrome) &&
- (tga_info.image_type != TGARLEColormap) &&
- (tga_info.image_type != TGARLERGB) &&
- (tga_info.image_type != TGARLEMonochrome)) ||
- (((tga_info.image_type == TGAColormap) ||
- (tga_info.image_type == TGARLEColormap)) &&
- (tga_info.colormap_type == 0)))
- ThrowReaderException(CorruptImageError,"ImproperImageHeader");
- tga_info.colormap_index=ReadBlobLSBShort(image);
- tga_info.colormap_length=ReadBlobLSBShort(image);
- tga_info.colormap_size=(unsigned char) ReadBlobByte(image);
- tga_info.x_origin=ReadBlobLSBShort(image);
- tga_info.y_origin=ReadBlobLSBShort(image);
- tga_info.width=(unsigned short) ReadBlobLSBShort(image);
- tga_info.height=(unsigned short) ReadBlobLSBShort(image);
- tga_info.bits_per_pixel=(unsigned char) ReadBlobByte(image);
- tga_info.attributes=(unsigned char) ReadBlobByte(image);
- if (EOFBlob(image) != MagickFalse)
- ThrowReaderException(CorruptImageError,"UnableToReadImageData");
- /*
- Initialize image structure.
- */
- image->columns=tga_info.width;
- image->rows=tga_info.height;
- image->matte=tga_info.bits_per_pixel == 32 ? MagickTrue : MagickFalse;
- if ((tga_info.image_type != TGAColormap) &&
- (tga_info.image_type != TGARLEColormap))
- image->depth=(unsigned long) ((tga_info.bits_per_pixel <= 8) ? 8 :
- (tga_info.bits_per_pixel <= 16) ? 5 :
- (tga_info.bits_per_pixel == 24) ? 8 :
- (tga_info.bits_per_pixel == 32) ? 8 : 8);
- else
- image->depth=(unsigned long) ((tga_info.colormap_size <= 8) ? 8 :
- (tga_info.colormap_size <= 16) ? 5 :
- (tga_info.colormap_size == 24) ? 8 :
- (tga_info.colormap_size == 32) ? 8 : 8);
- if ((tga_info.image_type == TGAColormap) ||
- (tga_info.image_type == TGAMonochrome) ||
- (tga_info.image_type == TGARLEColormap) ||
- (tga_info.image_type == TGARLEMonochrome))
- image->storage_class=PseudoClass;
- image->compression=NoCompression;
- if ((tga_info.image_type == TGARLEColormap) ||
- (tga_info.image_type == TGARLEMonochrome))
- image->compression=RLECompression;
- if (image->storage_class == PseudoClass)
+ if ((count != 1) ||
+ ((tga_info.image_type != TGAColormap) &&
+ (tga_info.image_type != TGARGB) &&
+ (tga_info.image_type != TGAMonochrome) &&
+ (tga_info.image_type != TGARLEColormap) &&
+ (tga_info.image_type != TGARLERGB) &&
+ (tga_info.image_type != TGARLEMonochrome)) ||
+ (((tga_info.image_type == TGAColormap) ||
+ (tga_info.image_type == TGARLEColormap)) &&
+ (tga_info.colormap_type == 0)))
+ ThrowReaderException(CorruptImageError,"ImproperImageHeader");
+ tga_info.colormap_index=ReadBlobLSBShort(image);
+ tga_info.colormap_length=ReadBlobLSBShort(image);
+ tga_info.colormap_size=(unsigned char) ReadBlobByte(image);
+ tga_info.x_origin=ReadBlobLSBShort(image);
+ tga_info.y_origin=ReadBlobLSBShort(image);
+ tga_info.width=(unsigned short) ReadBlobLSBShort(image);
+ tga_info.height=(unsigned short) ReadBlobLSBShort(image);
+ tga_info.bits_per_pixel=(unsigned char) ReadBlobByte(image);
+ tga_info.attributes=(unsigned char) ReadBlobByte(image);
+ if (EOFBlob(image) != MagickFalse)
+ ThrowReaderException(CorruptImageError,"UnableToReadImageData");
+ if ((((tga_info.bits_per_pixel <= 1) || (tga_info.bits_per_pixel >= 17)) &&
+ (tga_info.bits_per_pixel != 24) && (tga_info.bits_per_pixel != 32)))
+ ThrowReaderException(CorruptImageError,"ImproperImageHeader");
+ /*
+ Initialize image structure.
+ */
+ image->columns=tga_info.width;
+ image->rows=tga_info.height;
+ alpha_bits=(tga_info.attributes & 0x0FU);
+ image->alpha_trait=(alpha_bits > 0) || (tga_info.bits_per_pixel == 32) ||
+ (tga_info.colormap_size == 32) ? BlendPixelTrait : UndefinedPixelTrait;
+ if ((tga_info.image_type != TGAColormap) &&
+ (tga_info.image_type != TGARLEColormap))
+ image->depth=(size_t) ((tga_info.bits_per_pixel <= 8) ? 8 :
+ (tga_info.bits_per_pixel <= 16) ? 5 :
+ (tga_info.bits_per_pixel == 24) ? 8 :
+ (tga_info.bits_per_pixel == 32) ? 8 : 8);
+ else
+ image->depth=(size_t) ((tga_info.colormap_size <= 8) ? 8 :
+ (tga_info.colormap_size <= 16) ? 5 :
+ (tga_info.colormap_size == 24) ? 8 :
+ (tga_info.colormap_size == 32) ? 8 : 8);
+ if ((tga_info.image_type == TGAColormap) ||
+ (tga_info.image_type == TGAMonochrome) ||
+ (tga_info.image_type == TGARLEColormap) ||
+ (tga_info.image_type == TGARLEMonochrome))
+ image->storage_class=PseudoClass;
+ image->compression=NoCompression;
+ if ((tga_info.image_type == TGARLEColormap) ||
+ (tga_info.image_type == TGARLEMonochrome))
+ image->compression=RLECompression;
+ if (image->storage_class == PseudoClass)
+ {
+ if (tga_info.colormap_type != 0)
+ image->colors=tga_info.colormap_length;
+ else
+ {
+ size_t
+ one;
+
+ one=1;
+ image->colors=one << tga_info.bits_per_pixel;
+ if (AcquireImageColormap(image,image->colors,exception) == MagickFalse)
+ ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
+ }
+ }
+ if (tga_info.id_length != 0)
+ {
+ char
+ *comment;
+
+ size_t
+ length;
+
+ /*
+ TGA image comment.
+ */
+ length=(size_t) tga_info.id_length;
+ comment=(char *) NULL;
+ if (~length >= (MaxTextExtent-1))
+ comment=(char *) AcquireQuantumMemory(length+MaxTextExtent,
+ sizeof(*comment));
+ if (comment == (char *) NULL)
+ ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
+ count=ReadBlob(image,tga_info.id_length,(unsigned char *) comment);
+ comment[tga_info.id_length]='\0';
+ (void) SetImageProperty(image,"comment",comment,exception);
+ comment=DestroyString(comment);
+ }
+ (void) ResetMagickMemory(&pixel,0,sizeof(pixel));
+ pixel.alpha=(MagickRealType) OpaqueAlpha;
+ if (tga_info.colormap_type != 0)
+ {
+ /*
+ Read TGA raster colormap.
+ */
+ if (AcquireImageColormap(image,image->colors,exception) == MagickFalse)
+ ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
+ for (i=0; i < (ssize_t) image->colors; i++)
{
- if (tga_info.colormap_type != 0)
- image->colors=tga_info.colormap_length;
- else
+ switch (tga_info.colormap_size)
+ {
+ case 8:
+ default:
{
- image->colors=0x01U << tga_info.bits_per_pixel;
- if (AcquireImageColormap(image,image->colors) == MagickFalse)
- ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
+ /*
+ Gray scale.
+ */
+ pixel.red=(MagickRealType) ScaleCharToQuantum((unsigned char)
+ ReadBlobByte(image));
+ pixel.green=pixel.red;
+ pixel.blue=pixel.red;
+ break;
}
+ case 15:
+ case 16:
+ {
+ QuantumAny
+ range;
+
+ /*
+ 5 bits each of red green and blue.
+ */
+ j=(unsigned char) ReadBlobByte(image);
+ k=(unsigned char) ReadBlobByte(image);
+ range=GetQuantumRange(5UL);
+ pixel.red=(MagickRealType) ScaleAnyToQuantum(1UL*(k & 0x7c) >> 2,
+ range);
+ pixel.green=(MagickRealType) ScaleAnyToQuantum((1UL*(k & 0x03)
+ << 3)+(1UL*(j & 0xe0) >> 5),range);
+ pixel.blue=(MagickRealType) ScaleAnyToQuantum(1UL*(j & 0x1f),range);
+ break;
+ }
+ case 24:
+ {
+ /*
+ 8 bits each of blue, green and red.
+ */
+ pixel.blue=(MagickRealType) ScaleCharToQuantum((unsigned char)
+ ReadBlobByte(image));
+ pixel.green=(MagickRealType) ScaleCharToQuantum((unsigned char)
+ ReadBlobByte(image));
+ pixel.red=(MagickRealType) ScaleCharToQuantum((unsigned char)
+ ReadBlobByte(image));
+ break;
+ }
+ case 32:
+ {
+ /*
+ 8 bits each of blue, green, red, and alpha.
+ */
+ pixel.blue=(MagickRealType) ScaleCharToQuantum((unsigned char)
+ ReadBlobByte(image));
+ pixel.green=(MagickRealType) ScaleCharToQuantum((unsigned char)
+ ReadBlobByte(image));
+ pixel.red=(MagickRealType) ScaleCharToQuantum((unsigned char)
+ ReadBlobByte(image));
+ pixel.alpha=(MagickRealType) ScaleCharToQuantum((unsigned char)
+ ReadBlobByte(image));
+ break;
+ }
+ }
+ image->colormap[i]=pixel;
}
- if (tga_info.id_length != 0)
- {
- char
- *comment;
-
- size_t
- length;
-
- /*
- TGA image comment.
- */
- length=(size_t) tga_info.id_length;
- comment=(char *) NULL;
- if (~length >= MaxTextExtent)
- comment=(char *) AcquireQuantumMemory(length+MaxTextExtent,
- sizeof(*comment));
- if (comment == (char *) NULL)
- ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
- count=ReadBlob(image,tga_info.id_length,(unsigned char *) comment);
- comment[tga_info.id_length]='\0';
- (void) SetImageProperty(image,"comment",comment);
- comment=DestroyString(comment);
- }
- (void) ResetMagickMemory(&pixel,0,sizeof(pixel));
- pixel.opacity=(Quantum) OpaqueOpacity;
- if (tga_info.colormap_type != 0)
- {
- /*
- Read TGA raster colormap.
- */
- if (AcquireImageColormap(image,image->colors) == MagickFalse)
- ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
- for (i=0; i < (long) image->colors; i++)
+ }
+ /*
+ Convert TGA pixels to pixel packets.
+ */
+ base=0;
+ flag=0;
+ skip=MagickFalse;
+ real=0;
+ index=0;
+ runlength=0;
+ offset=0;
+ for (y=0; y < (ssize_t) image->rows; y++)
+ {
+ real=offset;
+ if (((unsigned char) (tga_info.attributes & 0x20) >> 5) == 0)
+ real=image->rows-real-1;
+ q=QueueAuthenticPixels(image,0,(ssize_t) real,image->columns,1,exception);
+ if (q == (Quantum *) NULL)
+ break;
+ for (x=0; x < (ssize_t) image->columns; x++)
+ {
+ if ((tga_info.image_type == TGARLEColormap) ||
+ (tga_info.image_type == TGARLERGB) ||
+ (tga_info.image_type == TGARLEMonochrome))
{
- switch (tga_info.colormap_size)
- {
- case 8:
- default:
- {
- /*
- Gray scale.
- */
- pixel.red=ScaleCharToQuantum((unsigned char) ReadBlobByte(image));
- pixel.green=pixel.red;
- pixel.blue=pixel.red;
- break;
- }
- case 15:
- case 16:
+ if (runlength != 0)
{
- QuantumAny
- range;
-
- /*
- 5 bits each of red green and blue.
- */
- j=(unsigned char) ReadBlobByte(image);
- k=(unsigned char) ReadBlobByte(image);
- range=GetQuantumRange(5UL);
- pixel.red=ScaleAnyToQuantum(1UL*(k & 0x7c) >> 2,range);
- pixel.green=ScaleAnyToQuantum((1UL*(k & 0x03) << 3)+
- (1UL*(j & 0xe0) >> 5),range);
- pixel.blue=ScaleAnyToQuantum(1UL*(j & 0x1f),range);
- break;
+ runlength--;
+ skip=flag != 0;
}
- case 24:
- case 32:
+ else
{
- /*
- 8 bits each of blue, green and red.
- */
- pixel.blue=ScaleCharToQuantum((unsigned char)
- ReadBlobByte(image));
- pixel.green=ScaleCharToQuantum((unsigned char)
- ReadBlobByte(image));
- pixel.red=ScaleCharToQuantum((unsigned char)
- ReadBlobByte(image));
- break;
+ count=ReadBlob(image,1,&runlength);
+ if (count == 0)
+ ThrowReaderException(CorruptImageError,"UnableToReadImageData");
+ flag=runlength & 0x80;
+ if (flag != 0)
+ runlength-=128;
+ skip=MagickFalse;
}
- }
- image->colormap[i]=pixel;
}
- }
- if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
- if (image->scene >= (image_info->scene+image_info->number_scenes-1))
- break;
- /*
- Convert TGA pixels to pixel packets.
- */
- base=0;
- flag=0;
- skip=MagickFalse;
- real=0;
- index=(IndexPacket) 0;
- runlength=0;
- offset=0;
- for (y=0; y < (long) image->rows; y++)
- {
- real=offset;
- if (((unsigned char) (tga_info.attributes & 0x20) >> 5) == 0)
- real=image->rows-real-1;
- q=QueueAuthenticPixels(image,0,(long) real,image->columns,1,exception);
- if (q == (PixelPacket *) NULL)
- break;
- indexes=GetAuthenticIndexQueue(image);
- for (x=0; x < (long) image->columns; x++)
- {
- if ((tga_info.image_type == TGARLEColormap) ||
- (tga_info.image_type == TGARLERGB) ||
- (tga_info.image_type == TGARLEMonochrome))
+ if (skip == MagickFalse)
+ switch (tga_info.bits_per_pixel)
+ {
+ case 8:
+ default:
{
- if (runlength != 0)
- {
- runlength--;
- skip=flag != 0;
- }
+ /*
+ Gray scale.
+ */
+ index=(Quantum) ReadBlobByte(image);
+ if (tga_info.colormap_type != 0)
+ pixel=image->colormap[(ssize_t) ConstrainColormapIndex(image,
+ 1UL*index,exception)];
else
{
- count=ReadBlob(image,1,&runlength);
- if (count == 0)
- ThrowReaderException(CorruptImageError,
- "UnableToReadImageData");
- flag=runlength & 0x80;
- if (flag != 0)
- runlength-=128;
- skip=MagickFalse;
+ pixel.red=(MagickRealType) ScaleCharToQuantum((unsigned char)
+ index);
+ pixel.green=(MagickRealType) ScaleCharToQuantum((unsigned char)
+ index);
+ pixel.blue=(MagickRealType) ScaleCharToQuantum((unsigned char)
+ index);
}
+ break;
}
- if (skip == MagickFalse)
- switch (tga_info.bits_per_pixel)
+ case 15:
+ case 16:
{
- case 8:
- default:
- {
- /*
- Gray scale.
- */
- index=(IndexPacket) ReadBlobByte(image);
- if (tga_info.colormap_type != 0)
- pixel=image->colormap[(long) ConstrainColormapIndex(image,
- 1UL*index)];
- else
- {
- pixel.red=ScaleCharToQuantum((unsigned char) index);
- pixel.green=ScaleCharToQuantum((unsigned char) index);
- pixel.blue=ScaleCharToQuantum((unsigned char) index);
- }
- break;
- }
- case 15:
- case 16:
- {
- QuantumAny
- range;
-
- /*
- 5 bits each of red green and blue.
- */
- j=(unsigned char) ReadBlobByte(image);
- k=(unsigned char) ReadBlobByte(image);
- range=GetQuantumRange(5UL);
- pixel.red=ScaleAnyToQuantum(1UL*(k & 0x7c) >> 2,range);
- pixel.green=ScaleAnyToQuantum((1UL*(k & 0x03) << 3)+
- (1UL*(j & 0xe0) >> 5),range);
- pixel.blue=ScaleAnyToQuantum(1UL*(j & 0x1f),range);
- if (image->matte != MagickFalse)
- pixel.opacity=(k & 0x80) != 0 ? (Quantum) OpaqueOpacity :
- (Quantum) TransparentOpacity;
- if (image->storage_class == PseudoClass)
- index=ConstrainColormapIndex(image,((unsigned long) k << 8)+j);
- break;
- }
- case 24:
- case 32:
- {
- /*
- 8 bits each of blue green and red.
- */
- pixel.blue=ScaleCharToQuantum((unsigned char)
- ReadBlobByte(image));
- pixel.green=ScaleCharToQuantum((unsigned char)
- ReadBlobByte(image));
- pixel.red=ScaleCharToQuantum((unsigned char) ReadBlobByte(image));
- if (tga_info.bits_per_pixel == 32)
- pixel.opacity=(Quantum) (QuantumRange-ScaleCharToQuantum(
- (unsigned char) ReadBlobByte(image)));
- break;
- }
+ QuantumAny
+ range;
+
+ /*
+ 5 bits each of RGB.
+ */
+ if (ReadBlob(image,2,pixels) != 2)
+ ThrowReaderException(CorruptImageError,"UnableToReadImageData");
+ j=pixels[0];
+ k=pixels[1];
+ range=GetQuantumRange(5UL);
+ pixel.red=(MagickRealType) ScaleAnyToQuantum(1UL*(k & 0x7c) >> 2,
+ range);
+ pixel.green=(MagickRealType) ScaleAnyToQuantum((1UL*(k & 0x03)
+ << 3)+(1UL*(j & 0xe0) >> 5),range);
+ pixel.blue=(MagickRealType) ScaleAnyToQuantum(1UL*(j & 0x1f),range);
+ if (image->alpha_trait == BlendPixelTrait)
+ pixel.alpha=(MagickRealType) ((k & 0x80) == 0 ? (Quantum)
+ OpaqueAlpha : (Quantum) TransparentAlpha);
+ if (image->storage_class == PseudoClass)
+ index=ConstrainColormapIndex(image,((size_t) k << 8)+j,exception);
+ break;
}
- if (status == MagickFalse)
- ThrowReaderException(CorruptImageError,"UnableToReadImageData");
- if (image->storage_class == PseudoClass)
- indexes[x]=index;
- q->red=pixel.red;
- q->green=pixel.green;
- q->blue=pixel.blue;
- if (image->matte != MagickFalse)
- q->opacity=pixel.opacity;
- q++;
- }
- if (((unsigned char) (tga_info.attributes & 0xc0) >> 6) == 4)
- offset+=4;
- else
- if (((unsigned char) (tga_info.attributes & 0xc0) >> 6) == 2)
- offset+=2;
- else
- offset++;
- if (offset >= image->rows)
- {
- base++;
- offset=base;
- }
- if (SyncAuthenticPixels(image,exception) == MagickFalse)
- break;
- if (image->previous == (Image *) NULL)
- {
- status=SetImageProgress(image,LoadImageTag,y,image->rows);
- if (status == MagickFalse)
+ case 24:
+ {
+ /*
+ BGR pixels.
+ */
+ if (ReadBlob(image,3,pixels) != 3)
+ ThrowReaderException(CorruptImageError,"UnableToReadImageData");
+ pixel.blue=(MagickRealType) ScaleCharToQuantum(pixels[0]);
+ pixel.green=(MagickRealType) ScaleCharToQuantum(pixels[1]);
+ pixel.red=(MagickRealType) ScaleCharToQuantum(pixels[2]);
break;
+ }
+ case 32:
+ {
+ /*
+ BGRA pixels.
+ */
+ if (ReadBlob(image,4,pixels) != 4)
+ ThrowReaderException(CorruptImageError,"UnableToReadImageData");
+ pixel.blue=(MagickRealType) ScaleCharToQuantum(pixels[0]);
+ pixel.green=(MagickRealType) ScaleCharToQuantum(pixels[1]);
+ pixel.red=(MagickRealType) ScaleCharToQuantum(pixels[2]);
+ pixel.alpha=(MagickRealType) ScaleCharToQuantum(pixels[3]);
+ break;
+ }
}
+ if (status == MagickFalse)
+ ThrowReaderException(CorruptImageError,"UnableToReadImageData");
+ if (image->storage_class == PseudoClass)
+ SetPixelIndex(image,index,q);
+ SetPixelRed(image,ClampToQuantum(pixel.red),q);
+ SetPixelGreen(image,ClampToQuantum(pixel.green),q);
+ SetPixelBlue(image,ClampToQuantum(pixel.blue),q);
+ if (image->alpha_trait == BlendPixelTrait)
+ SetPixelAlpha(image,ClampToQuantum(pixel.alpha),q);
+ q+=GetPixelChannels(image);
}
- if (EOFBlob(image) != MagickFalse)
+ if (((unsigned char) (tga_info.attributes & 0xc0) >> 6) == 4)
+ offset+=4;
+ else
+ if (((unsigned char) (tga_info.attributes & 0xc0) >> 6) == 2)
+ offset+=2;
+ else
+ offset++;
+ if (offset >= image->rows)
{
- ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
- image->filename);
- break;
+ base++;
+ offset=base;
}
- /*
- Proceed to next image.
- */
- if (image_info->number_scenes != 0)
- if (image->scene >= (image_info->scene+image_info->number_scenes-1))
- break;
- count=ReadBlob(image,1,&tga_info.id_length);
- tga_info.colormap_type=(unsigned char) ReadBlobByte(image);
- tga_info.image_type=(unsigned char) ReadBlobByte(image);
- status=((tga_info.image_type == TGAColormap) ||
- (tga_info.image_type == TGARGB) ||
- (tga_info.image_type == TGAMonochrome) ||
- (tga_info.image_type == TGARLEColormap) ||
- (tga_info.image_type == TGARLERGB) ||
- (tga_info.image_type == TGARLEMonochrome)) ? MagickTrue : MagickFalse;
- if (status == MagickTrue)
+ if (SyncAuthenticPixels(image,exception) == MagickFalse)
+ break;
+ if (image->previous == (Image *) NULL)
{
- /*
- Allocate next image structure.
- */
- AcquireNextImage(image_info,image);
- if (GetNextImageInList(image) == (Image *) NULL)
- {
- image=DestroyImageList(image);
- return((Image *) NULL);
- }
- image=SyncNextImageInList(image);
- status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
- GetBlobSize(image));
+ status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
+ image->rows);
if (status == MagickFalse)
break;
}
- } while (status == MagickTrue);
+ }
+ if (EOFBlob(image) != MagickFalse)
+ ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
+ image->filename);
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
%
% The format of the RegisterTGAImage method is:
%
-% unsigned long RegisterTGAImage(void)
+% size_t RegisterTGAImage(void)
%
*/
-ModuleExport unsigned long RegisterTGAImage(void)
+ModuleExport size_t RegisterTGAImage(void)
{
MagickInfo
*entry;
entry=SetMagickInfo("ICB");
entry->decoder=(DecodeImageHandler *) ReadTGAImage;
entry->encoder=(EncodeImageHandler *) WriteTGAImage;
+ entry->adjoin=MagickFalse;
entry->description=ConstantString("Truevision Targa image");
entry->module=ConstantString("TGA");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("TGA");
entry->decoder=(DecodeImageHandler *) ReadTGAImage;
entry->encoder=(EncodeImageHandler *) WriteTGAImage;
+ entry->adjoin=MagickFalse;
entry->description=ConstantString("Truevision Targa image");
entry->module=ConstantString("TGA");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("VDA");
entry->decoder=(DecodeImageHandler *) ReadTGAImage;
entry->encoder=(EncodeImageHandler *) WriteTGAImage;
+ entry->adjoin=MagickFalse;
entry->description=ConstantString("Truevision Targa image");
entry->module=ConstantString("TGA");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("VST");
entry->decoder=(DecodeImageHandler *) ReadTGAImage;
entry->encoder=(EncodeImageHandler *) WriteTGAImage;
+ entry->adjoin=MagickFalse;
entry->description=ConstantString("Truevision Targa image");
entry->module=ConstantString("TGA");
(void) RegisterMagickInfo(entry);
%
% The format of the WriteTGAImage method is:
%
-% MagickBooleanType WriteTGAImage(const ImageInfo *image_info,Image *image)
+% MagickBooleanType WriteTGAImage(const ImageInfo *image_info,
+% Image *image,ExceptionInfo *exception)
%
% A description of each parameter follows.
%
return(y);
}
-static MagickBooleanType WriteTGAImage(const ImageInfo *image_info,Image *image)
+static MagickBooleanType WriteTGAImage(const ImageInfo *image_info,Image *image,
+ ExceptionInfo *exception)
{
#define TargaColormap 1
#define TargaRGB 2
const char
*value;
- long
- y;
-
MagickBooleanType
status;
- MagickOffsetType
- scene;
-
- register const IndexPacket
- *indexes;
-
- register const PixelPacket
+ register const Quantum
*p;
- register long
+ register ssize_t
x;
- register long
+ register ssize_t
i;
register unsigned char
*q;
ssize_t
- count;
+ count,
+ y;
TargaInfo
targa_info;
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
- status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
+ assert(exception != (ExceptionInfo *) NULL);
+ assert(exception->signature == MagickSignature);
+ status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
if (status == MagickFalse)
return(status);
- scene=0;
- do
- {
- /*
- Initialize TGA raster file header.
- */
- if ((image->columns > 65535L) || (image->rows > 65535L))
- ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
- if (image->colorspace != RGBColorspace)
- (void) TransformImageColorspace(image,RGBColorspace);
- targa_info.id_length=0;
- value=GetImageProperty(image,"comment");
- if (value != (const char *) NULL)
- targa_info.id_length=(unsigned char) MagickMin(strlen(value),255);
- targa_info.colormap_type=0;
- targa_info.colormap_index=0;
- targa_info.colormap_length=0;
- targa_info.colormap_size=0;
- targa_info.x_origin=0;
- targa_info.y_origin=0;
- targa_info.width=(unsigned short) image->columns;
- targa_info.height=(unsigned short) image->rows;
- targa_info.bits_per_pixel=8;
- targa_info.attributes=0;
- if ((image_info->type != TrueColorType) &&
- (image_info->type != TrueColorMatteType) &&
- (image_info->type != PaletteType) &&
- (image->matte == MagickFalse) &&
- (IsGrayImage(image,&image->exception) != MagickFalse))
- targa_info.image_type=TargaMonochrome;
+ /*
+ Initialize TGA raster file header.
+ */
+ if ((image->columns > 65535L) || (image->rows > 65535L))
+ ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
+ (void) TransformImageColorspace(image,sRGBColorspace,exception);
+ targa_info.id_length=0;
+ value=GetImageProperty(image,"comment",exception);
+ if (value != (const char *) NULL)
+ targa_info.id_length=(unsigned char) MagickMin(strlen(value),255);
+ targa_info.colormap_type=0;
+ targa_info.colormap_index=0;
+ targa_info.colormap_length=0;
+ targa_info.colormap_size=0;
+ targa_info.x_origin=0;
+ targa_info.y_origin=0;
+ targa_info.width=(unsigned short) image->columns;
+ targa_info.height=(unsigned short) image->rows;
+ targa_info.bits_per_pixel=8;
+ targa_info.attributes=0;
+ if ((image_info->type != TrueColorType) &&
+ (image_info->type != TrueColorMatteType) &&
+ (image_info->type != PaletteType) &&
+ (image->alpha_trait != BlendPixelTrait) &&
+ (IsImageGray(image,exception) != MagickFalse))
+ targa_info.image_type=TargaMonochrome;
+ else
+ if ((image->storage_class == DirectClass) || (image->colors > 256))
+ {
+ /*
+ Full color TGA raster.
+ */
+ targa_info.image_type=TargaRGB;
+ targa_info.bits_per_pixel=24;
+ if (image->alpha_trait == BlendPixelTrait)
+ {
+ targa_info.bits_per_pixel=32;
+ targa_info.attributes=8; /* # of alpha bits */
+ }
+ }
else
- if ((image->storage_class == DirectClass) || (image->colors > 256))
- {
- /*
- Full color TGA raster.
- */
- targa_info.image_type=TargaRGB;
- targa_info.bits_per_pixel=24;
- if (image->matte != MagickFalse)
- {
- targa_info.bits_per_pixel=32;
- targa_info.attributes=8; /* # of alpha bits */
- }
- }
- else
- {
- /*
- Colormapped TGA raster.
- */
- targa_info.image_type=TargaColormap;
- targa_info.colormap_type=1;
- targa_info.colormap_length=(unsigned short) image->colors;
- targa_info.colormap_size=24;
- }
- /*
- Write TGA header.
- */
- (void) WriteBlobByte(image,targa_info.id_length);
- (void) WriteBlobByte(image,targa_info.colormap_type);
- (void) WriteBlobByte(image,targa_info.image_type);
- (void) WriteBlobLSBShort(image,targa_info.colormap_index);
- (void) WriteBlobLSBShort(image,targa_info.colormap_length);
- (void) WriteBlobByte(image,targa_info.colormap_size);
- (void) WriteBlobLSBShort(image,targa_info.x_origin);
- (void) WriteBlobLSBShort(image,targa_info.y_origin);
- (void) WriteBlobLSBShort(image,targa_info.width);
- (void) WriteBlobLSBShort(image,targa_info.height);
- (void) WriteBlobByte(image,targa_info.bits_per_pixel);
- (void) WriteBlobByte(image,targa_info.attributes);
- if (targa_info.id_length != 0)
- (void) WriteBlob(image,targa_info.id_length,(unsigned char *)
- value);
- if (targa_info.image_type == TargaColormap)
{
- unsigned char
- *targa_colormap;
-
/*
- Dump colormap to file (blue, green, red byte order).
+ Colormapped TGA raster.
*/
- targa_colormap=(unsigned char *) AcquireQuantumMemory((size_t)
- targa_info.colormap_length,3UL*sizeof(*targa_colormap));
- if (targa_colormap == (unsigned char *) NULL)
- ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
- q=targa_colormap;
- for (i=0; i < (long) image->colors; i++)
- {
- *q++=ScaleQuantumToChar(image->colormap[i].blue);
- *q++=ScaleQuantumToChar(image->colormap[i].green);
- *q++=ScaleQuantumToChar(image->colormap[i].red);
- }
- (void) WriteBlob(image,(size_t) (3*targa_info.colormap_length),
- targa_colormap);
- targa_colormap=(unsigned char *) RelinquishMagickMemory(targa_colormap);
+ targa_info.image_type=TargaColormap;
+ targa_info.colormap_type=1;
+ targa_info.colormap_length=(unsigned short) image->colors;
+ targa_info.colormap_size=24;
}
- /*
- Convert MIFF to TGA raster pixels.
- */
- count=(ssize_t) (targa_info.bits_per_pixel*targa_info.width)/8;
- targa_pixels=(unsigned char *) AcquireQuantumMemory((size_t) count,
- sizeof(*targa_pixels));
- if (targa_pixels == (unsigned char *) NULL)
- ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
- for (y=(long) (image->rows-1); y >= 0; y--)
+ /*
+ Write TGA header.
+ */
+ (void) WriteBlobByte(image,targa_info.id_length);
+ (void) WriteBlobByte(image,targa_info.colormap_type);
+ (void) WriteBlobByte(image,targa_info.image_type);
+ (void) WriteBlobLSBShort(image,targa_info.colormap_index);
+ (void) WriteBlobLSBShort(image,targa_info.colormap_length);
+ (void) WriteBlobByte(image,targa_info.colormap_size);
+ (void) WriteBlobLSBShort(image,targa_info.x_origin);
+ (void) WriteBlobLSBShort(image,targa_info.y_origin);
+ (void) WriteBlobLSBShort(image,targa_info.width);
+ (void) WriteBlobLSBShort(image,targa_info.height);
+ (void) WriteBlobByte(image,targa_info.bits_per_pixel);
+ (void) WriteBlobByte(image,targa_info.attributes);
+ if (targa_info.id_length != 0)
+ (void) WriteBlob(image,targa_info.id_length,(unsigned char *)
+ value);
+ if (targa_info.image_type == TargaColormap)
{
- p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
- if (p == (const PixelPacket *) NULL)
- break;
- q=targa_pixels;
- indexes=GetVirtualIndexQueue(image);
- for (x=0; x < (long) image->columns; x++)
+ unsigned char
+ *targa_colormap;
+
+ /*
+ Dump colormap to file (blue, green, red byte order).
+ */
+ targa_colormap=(unsigned char *) AcquireQuantumMemory((size_t)
+ targa_info.colormap_length,3UL*sizeof(*targa_colormap));
+ if (targa_colormap == (unsigned char *) NULL)
+ ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
+ q=targa_colormap;
+ for (i=0; i < (ssize_t) image->colors; i++)
{
- if (targa_info.image_type == TargaColormap)
- *q++=(unsigned char) indexes[x];
- else
- if (targa_info.image_type == TargaMonochrome)
- *q++=(unsigned char) ScaleQuantumToChar(PixelIntensityToQuantum(p));
- else
- {
- *q++=ScaleQuantumToChar(GetBluePixelComponent(p));
- *q++=ScaleQuantumToChar(GetGreenPixelComponent(p));
- *q++=ScaleQuantumToChar(GetRedPixelComponent(p));
- if (image->matte != MagickFalse)
- *q++=(unsigned char) ScaleQuantumToChar((Quantum)
- (GetAlphaPixelComponent(p)));
- if (image->colorspace == CMYKColorspace)
- *q++=ScaleQuantumToChar(indexes[x]);
- }
- p++;
+ *q++=ScaleQuantumToChar(ClampToQuantum(image->colormap[i].blue));
+ *q++=ScaleQuantumToChar(ClampToQuantum(image->colormap[i].green));
+ *q++=ScaleQuantumToChar(ClampToQuantum(image->colormap[i].red));
}
- (void) WriteBlob(image,(size_t) (q-targa_pixels),targa_pixels);
- if (image->previous == (Image *) NULL)
- {
- status=SetImageProgress(image,SaveImageTag,y,image->rows);
- if (status == MagickFalse)
- break;
- }
+ (void) WriteBlob(image,(size_t) (3*targa_info.colormap_length),
+ targa_colormap);
+ targa_colormap=(unsigned char *) RelinquishMagickMemory(targa_colormap);
}
- targa_pixels=(unsigned char *) RelinquishMagickMemory(targa_pixels);
- if (GetNextImageInList(image) == (Image *) NULL)
- break;
- image=SyncNextImageInList(image);
- status=SetImageProgress(image,SaveImagesTag,scene++,
- GetImageListLength(image));
- if (status == MagickFalse)
+ /*
+ Convert MIFF to TGA raster pixels.
+ */
+ count=(ssize_t) (targa_info.bits_per_pixel*targa_info.width)/8;
+ targa_pixels=(unsigned char *) AcquireQuantumMemory((size_t) count,
+ sizeof(*targa_pixels));
+ if (targa_pixels == (unsigned char *) NULL)
+ ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
+ for (y=(ssize_t) (image->rows-1); y >= 0; y--)
+ {
+ p=GetVirtualPixels(image,0,y,image->columns,1,exception);
+ if (p == (const Quantum *) NULL)
break;
- } while (image_info->adjoin != MagickFalse);
+ q=targa_pixels;
+ for (x=0; x < (ssize_t) image->columns; x++)
+ {
+ if (targa_info.image_type == TargaColormap)
+ *q++=(unsigned char) GetPixelIndex(image,p);
+ else
+ if (targa_info.image_type == TargaMonochrome)
+ *q++=(unsigned char) ScaleQuantumToChar((ClampToQuantum(
+ GetPixelLuma(image,p))));
+ else
+ {
+ *q++=ScaleQuantumToChar(GetPixelBlue(image,p));
+ *q++=ScaleQuantumToChar(GetPixelGreen(image,p));
+ *q++=ScaleQuantumToChar(GetPixelRed(image,p));
+ if (image->alpha_trait == BlendPixelTrait)
+ *q++=(unsigned char) ScaleQuantumToChar(GetPixelAlpha(image,p));
+ }
+ p+=GetPixelChannels(image);
+ }
+ (void) WriteBlob(image,(size_t) (q-targa_pixels),targa_pixels);
+ if (image->previous == (Image *) NULL)
+ {
+ status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
+ image->rows);
+ if (status == MagickFalse)
+ break;
+ }
+ }
+ targa_pixels=(unsigned char *) RelinquishMagickMemory(targa_pixels);
(void) CloseBlob(image);
return(MagickTrue);
}
projects / imagemagick / blobdiff