mirror of
https://github.com/elliotnunn/sys7.1-doc-wip.git
synced 2024-06-06 06:29:27 +00:00
190 lines
6.3 KiB
C
190 lines
6.3 KiB
C
/*
|
|
File: puPrivate.h
|
|
|
|
Contains: This is the main header file for the picture utilities package.
|
|
|
|
Written by: Dave Good. Some ideas stolen from Konstantin Othmer and Bruce Leak. Prototyped by Cris Rys.
|
|
|
|
Copyright: © 1990 by Apple Computer, Inc., all rights reserved.
|
|
|
|
Change History (most recent first):
|
|
|
|
<9> 9/25/90 DDG Saved a few bytes by changing the IsColorPort and IsPixMap
|
|
macros to cast everything to short before the “and” operation.
|
|
<8> 9/21/90 DDG Made changes from code review. Pulled out all the public stuff
|
|
into the public interface file (“PictUtil.h”).
|
|
<7> 8/5/90 DDG Fixed the prototype of the RecordColors routine. Added two
|
|
fields for checking to see if we are reading data past the end
|
|
of a picture.
|
|
<6> 8/3/90 DDG Renumbered the verbs and added a prototype for the
|
|
CalcExactTable routine.
|
|
<5> 8/2/90 DDG Added a field for custom color procs and added a prototype for
|
|
the custom RecordColors routine.
|
|
<4> 7/31/90 DDG Replaced the workingCTPtr field by a buffer field
|
|
(colorTableBuffer) and a color table entries count
|
|
(colorTableEntries).
|
|
<3> 7/30/90 DDG Added fields to support colorizing and exact histograms.
|
|
<2> 7/29/90 DDG Fixed header.
|
|
<1> 7/29/90 DDG First checked in using new structure.
|
|
|
|
To Do:
|
|
*/
|
|
|
|
|
|
/*----------------------------------------------------------------------------------------------------------*/
|
|
|
|
/*
|
|
| Includes
|
|
*/
|
|
|
|
#include <types.h>
|
|
#include <memory.h>
|
|
#include <quickdraw.h>
|
|
#include <palettes.h>
|
|
#include <pictutil.h>
|
|
#include <errors.h>
|
|
|
|
|
|
|
|
/*----------------------------------------------------------------------------------------------------------*/
|
|
|
|
/*
|
|
| Defines
|
|
*/
|
|
|
|
#define allVerbMask ( (short) 0x001F )
|
|
|
|
|
|
#define IsColorPort(x) ( ((unsigned short)(x) & (unsigned short)0xC000) != 0 )
|
|
#define IsPixMap(x) ( ((unsigned short)(x) & (unsigned short)0x8000) != 0 )
|
|
|
|
|
|
#define CURRENT_VERSION 0
|
|
|
|
|
|
#define HistogramTableSize (32768 * 2)
|
|
#define maximumExactColors 256
|
|
|
|
|
|
#define bufferFixedType 1
|
|
#define bufferFixedLastingType 2
|
|
#define bufferVariableType 3
|
|
|
|
|
|
|
|
/*----------------------------------------------------------------------------------------------------------*/
|
|
|
|
/*
|
|
| Functions
|
|
*/
|
|
|
|
extern pascal OSErr __GetPictInfo( PicHandle, PictInfo *, short, short, short, short );
|
|
extern pascal OSErr __GetPixMapInfo( PixMapHandle, PictInfo *, short, short, short, short );
|
|
|
|
extern pascal OSErr __NewPictInfo( PictInfoID *, short, short, short, short );
|
|
|
|
extern pascal OSErr __RecordPixMapInfo( PictInfoID, PixMapHandle );
|
|
extern pascal OSErr __RecordPictInfo( PictInfoID, PicHandle );
|
|
extern pascal OSErr __RetrievePictInfo( PictInfoID, PictInfo *, short );
|
|
|
|
extern pascal OSErr __DisposPictInfo( PictInfoID );
|
|
|
|
|
|
|
|
/*----------------------------------------------------------------------------------------------------------*/
|
|
|
|
/*
|
|
| Internal Structures
|
|
*/
|
|
|
|
|
|
/*
|
|
| This is the definition for the external function that is called to read in data
|
|
| for the picture. The APPLICATION provides this function.
|
|
*/
|
|
|
|
typedef pascal void( *GetPicDataProcPtr )( Ptr, short );
|
|
|
|
|
|
|
|
typedef struct Buffer {
|
|
unsigned char *ptr;
|
|
unsigned long size;
|
|
unsigned long ref;
|
|
} Buffer;
|
|
|
|
|
|
|
|
typedef struct InternalPictInfo {
|
|
|
|
PictInfo ext;
|
|
PictInfoID thePictInfoID; // for identifications/verification purposes
|
|
short verb;
|
|
short colorPickMethod;
|
|
short colorsRequested;
|
|
Buffer spoolBuffer;
|
|
Buffer lineBuffer;
|
|
Buffer bandBuffer;
|
|
unsigned char *spoolPtr; // a pointer to the current offset in the spool buffer
|
|
unsigned char *spoolMax; // the ending pointer for the spool buffer (start + size)
|
|
PicHandle spoolPictHandle; // handle to the picture (for spooling purposes)
|
|
unsigned long spoolPictOffset; // offset into the picture (for spooling purposes)
|
|
unsigned long spoolPictLength; // length of the picture handle
|
|
OSErr spoolPictError; // error that occurred in the spooling routines
|
|
GetPicDataProcPtr spoolProc; // the APPLICATION procedure that reads the picture into the buffer
|
|
short colorBankType; // if this is true then the color bank is a 555 histogram
|
|
Buffer colorBankBuffer;
|
|
short colorBankIndex; // this is only used for custom colors.
|
|
Buffer colorTableBuffer; // this contains the pre-colorized, fleshed out color table for index stuff
|
|
short colorTableEntries; // number of entries in the color table buffer
|
|
long *indexCachePtr;
|
|
RGBColor foreColor;
|
|
RGBColor backColor;
|
|
short colorizing;
|
|
long pickProcData;
|
|
|
|
} InternalPictInfo, *InternalPictInfoPtr, **InternalPictInfoHandle;
|
|
|
|
|
|
|
|
/*----------------------------------------------------------------------------------------------------------*/
|
|
|
|
/*
|
|
| Internal Funtions
|
|
*/
|
|
|
|
unsigned char GetPictByte( InternalPictInfoPtr );
|
|
unsigned short GetPictWord( InternalPictInfoPtr );
|
|
unsigned long GetPictLong( InternalPictInfoPtr );
|
|
void GetPictData( InternalPictInfoPtr, unsigned char *, unsigned long );
|
|
void SkipPictData( InternalPictInfoPtr, unsigned long );
|
|
void SkipPictByte( InternalPictInfoPtr );
|
|
void SkipPictWord( InternalPictInfoPtr );
|
|
void SkipPictLong( InternalPictInfoPtr );
|
|
|
|
void AddPadBytes( unsigned char *, unsigned char *, unsigned long );
|
|
void MergeRGBData( unsigned char *, unsigned char *, unsigned short, Boolean );
|
|
void UnpackWords( unsigned char *, unsigned char **, unsigned short );
|
|
|
|
void ClearMemoryBytes( char *, unsigned long );
|
|
|
|
void NewEmptyBuffer( Buffer * );
|
|
OSErr NewBuffer( Buffer *, unsigned long, short );
|
|
OSErr NewBufferClear( Buffer *, unsigned long, short );
|
|
OSErr SetBufferSize( Buffer *, unsigned long, short );
|
|
OSErr SetBufferSizeClear( Buffer *, unsigned long, short );
|
|
OSErr KillBuffer( Buffer * );
|
|
|
|
OSErr RecordPixMapGuts( InternalPictInfoPtr, PixMapHandle );
|
|
void RecordPixels( InternalPictInfoPtr, short, short, short, long, short );
|
|
void RecordRGBColor( InternalPictInfoPtr, RGBColor * );
|
|
void CalcExactTable( short, short, ColorSpec *, ColorSpec * );
|
|
InternalPictInfoPtr DerefPictInfoID( PictInfoID, char * );
|
|
|
|
pascal OSErr InitPickMethod( short, long *, short *, short );
|
|
pascal OSErr RecordColors( long, RGBColor *, long, long *, short );
|
|
pascal OSErr CalcColorTable( long, short, char *, ColorSpec *, short );
|
|
pascal OSErr KillPickMethod( long, short );
|
|
|
|
/*----------------------------------------------------------------------------------------------------------*/
|