Create Subversion repository

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@1 9d0c8265-081b-0410-96cb-a4ca84ce46f8

1 files changed, 256 insertions, 0 deletions

diff --git a/converter/ppm/ilbm.h b/converter/ppm/ilbm.h
new file mode 100644
index 00000000..68657956
--- /dev/null
+++ b/converter/ppm/ilbm.h
@@ -0,0 +1,256 @@
+#ifndef ILBM_H_INCLUDED
+#define ILBM_H_INCLUDED
+
+/* ilbm.h - definitions for IFF ILBM files */
+
+#define RowBytes(cols)          ((((cols) + 15) / 16) * 2)
+
+
+/* definitions for BMHD */
+
+typedef struct {
+    unsigned short w, h;
+    short x, y;
+    unsigned char nPlanes, masking, compression, flags;
+    unsigned short transparentColor;
+    unsigned char xAspect, yAspect;
+    short pageWidth, pageHeight;
+} BitMapHeader;
+#define BitMapHeaderSize    20
+
+#define BMHD_FLAGS_CMAPOK       (1<<7)      /* valid 8bit colormap */
+
+#define mskNone                 0
+#define mskHasMask              1
+#define mskHasTransparentColor  2
+#define mskLasso                3       /* not supported */
+#define mskMAXKNOWN             mskLasso
+static const char * mskNAME[] = { 
+    "none", "mask plane", "transparent color", "lasso" 
+};
+
+#define cmpNone                 0
+#define cmpByteRun1             1
+#define cmpMAXKNOWN             cmpByteRun1
+static const char * cmpNAME[] = { "none", "byterun1" };
+
+
+/* definitions for CMAP */
+
+#if 0   /* not used */
+typedef struct {
+    unsigned char r, g, b;
+} ColorRegister;
+#endif
+
+
+/* definitions for CAMG */
+
+#define CAMGChunkSize       4
+
+#define vmLACE              0x0004
+#define vmEXTRA_HALFBRITE   0x0080
+#define vmHAM               0x0800
+#define vmHIRES             0x8000
+
+#define HAMCODE_CMAP      0     /* look up color in colormap */
+#define HAMCODE_BLUE      1     /* new blue component */
+#define HAMCODE_RED       2     /* new red component */
+#define HAMCODE_GREEN     3     /* new green component */
+
+
+/* multipalette PCHG chunk definitions */
+
+/* get number of longwords in line mask from PCHG.LineCount */
+#define MaskLongWords(x)    (((x) + 31) / 32)
+
+typedef struct {
+    unsigned short  Compression;
+    unsigned short  Flags;
+    short           StartLine;      /* may be negative */
+    unsigned short  LineCount;
+    unsigned short  ChangedLines;
+    unsigned short  MinReg;
+    unsigned short  MaxReg;
+    unsigned short  MaxChanges;
+    unsigned long   TotalChanges;
+} PCHGHeader;
+#define PCHGHeaderSize      20
+
+/* Compression modes */
+#define PCHG_COMP_NONE      0
+#define PCHG_COMP_HUFFMAN   1
+
+/* Flags */
+#define PCHGF_12BIT         (1 << 0)    /* use SmallLineChanges */
+#define PCHGF_32BIT         (1 << 1)    /* use BigLineChanges */
+#define PCHGF_USE_ALPHA     (1 << 2)    /* meaningful only if PCHG_32BIT is on:
+                                           use the Alpha channel info */
+typedef struct {
+    unsigned long   CompInfoSize;
+    unsigned long   OriginalDataSize;
+} PCHGCompHeader;
+#define PCHGCompHeaderSize  8
+
+#if 0   /* not used */
+typedef struct {
+    unsigned char   ChangeCount16;
+    unsigned char   ChangeCount32;
+    unsigned short  *PaletteChange;
+} SmallLineChanges;
+
+typedef struct {
+    unsigned short  Register;
+    unsigned char   Alpha, Red, Blue, Green;    /* ARBG, not ARGB */
+} BigPaletteChange;
+
+typedef struct {
+    unsigned short      ChangeCount;
+    BigPaletteChange    *PaletteChange;
+} BigLineChanges;
+#endif /* 0 */
+
+
+/* definitions for CLUT */
+
+#if 0 /* not used */
+typedef struct {
+    unsigned long type;
+    unsigned long reserved0;
+    unsigned char lut[256];
+} ColorLUT;
+#endif /* 0 */
+#define CLUTSize    (256+4+4)
+
+/* types */
+#define CLUT_MONO   0
+#define CLUT_RED    1
+#define CLUT_GREEN  2
+#define CLUT_BLUE   3
+#define CLUT_HUE    4   /* not supported */
+#define CLUT_SAT    5   /* not supported */
+
+
+/* unofficial DCOL chunk for direct-color */
+
+typedef struct {
+    unsigned char r, g, b, pad1;
+} DirectColor;
+#define DirectColorSize     4
+
+
+
+/* IFF chunk IDs */
+
+typedef unsigned long   IFF_ID;
+
+#define MAKE_ID(a, b, c, d) \
+    ((IFF_ID)(a)<<24 | (IFF_ID)(b)<<16 | (IFF_ID)(c)<<8 | (IFF_ID)(d))
+
+#define ID_FORM     MAKE_ID('F', 'O', 'R', 'M')     
+    /* EA IFF 85 group identifier */
+#define ID_CAT      MAKE_ID('C', 'A', 'T', ' ')     
+    /* EA IFF 85 group identifier */
+#define ID_LIST     MAKE_ID('L', 'I', 'S', 'T')     
+    /* EA IFF 85 group identifier */
+#define ID_PROP     MAKE_ID('P', 'R', 'O', 'P')     
+    /* EA IFF 85 group identifier */
+#define ID_END      MAKE_ID('E', 'N', 'D', ' ')     
+    /* unofficial END-of-FORM identifier (see Amiga RKM Devices Ed.3
+       page 376) */
+#define ID_ILBM     MAKE_ID('I', 'L', 'B', 'M')     
+    /* EA IFF 85 raster bitmap form */
+#define ID_DEEP     MAKE_ID('D', 'E', 'E', 'P')     
+    /* Chunky pixel image files (Used in TV Paint) */
+#define ID_RGB8     MAKE_ID('R', 'G', 'B', '8')     
+    /* RGB image forms, Turbo Silver (Impulse) */
+#define ID_RGBN     MAKE_ID('R', 'G', 'B', 'N')     
+    /* RGB image forms, Turbo Silver (Impulse) */
+#define ID_PBM      MAKE_ID('P', 'B', 'M', ' ')     
+    /* 256-color chunky format (DPaint 2 ?) */
+#define ID_ACBM     MAKE_ID('A', 'C', 'B', 'M')     
+    /* Amiga Contiguous Bitmap (AmigaBasic) */
+
+/* generic */
+
+#define ID_FVER     MAKE_ID('F', 'V', 'E', 'R')     
+    /* AmigaOS version string */
+#define ID_JUNK     MAKE_ID('J', 'U', 'N', 'K')     
+    /* always ignore this chunk */
+#define ID_ANNO     MAKE_ID('A', 'N', 'N', 'O')     
+    /* EA IFF 85 Generic Annotation chunk */
+#define ID_AUTH     MAKE_ID('A', 'U', 'T', 'H')     
+    /* EA IFF 85 Generic Author chunk */
+#define ID_CHRS     MAKE_ID('C', 'H', 'R', 'S')     
+    /* EA IFF 85 Generic character string chunk */
+#define ID_NAME     MAKE_ID('N', 'A', 'M', 'E')     
+    /* EA IFF 85 Generic Name of art, music, etc. chunk */
+#define ID_TEXT     MAKE_ID('T', 'E', 'X', 'T')     
+    /* EA IFF 85 Generic unformatted ASCII text chunk */
+#define ID_copy     MAKE_ID('(', 'c', ')', ' ')     
+/* EA IFF 85 Generic Copyright text chunk */
+
+/* ILBM chunks */
+
+#define ID_BMHD     MAKE_ID('B', 'M', 'H', 'D')     
+    /* ILBM BitmapHeader */
+#define ID_CMAP     MAKE_ID('C', 'M', 'A', 'P')     
+    /* ILBM 8bit RGB colormap */
+#define ID_GRAB     MAKE_ID('G', 'R', 'A', 'B')     
+    /* ILBM "hotspot" coordiantes */
+#define ID_DEST     MAKE_ID('D', 'E', 'S', 'T')     
+    /* ILBM destination image info */
+#define ID_SPRT     MAKE_ID('S', 'P', 'R', 'T')     
+    /* ILBM sprite identifier */
+#define ID_CAMG     MAKE_ID('C', 'A', 'M', 'G')     
+    /* Amiga viewportmodes */
+#define ID_BODY     MAKE_ID('B', 'O', 'D', 'Y')     
+    /* ILBM image data */
+#define ID_CRNG     MAKE_ID('C', 'R', 'N', 'G')     
+    /* color cycling */
+#define ID_CCRT     MAKE_ID('C', 'C', 'R', 'T')     
+    /* color cycling */
+#define ID_CLUT     MAKE_ID('C', 'L', 'U', 'T')     
+    /* Color Lookup Table chunk */
+#define ID_DPI      MAKE_ID('D', 'P', 'I', ' ')     
+    /* Dots per inch chunk */
+#define ID_DPPV     MAKE_ID('D', 'P', 'P', 'V')     
+    /* DPaint perspective chunk (EA) */
+#define ID_DRNG     MAKE_ID('D', 'R', 'N', 'G')     
+    /* DPaint IV enhanced color cycle chunk (EA) */
+#define ID_EPSF     MAKE_ID('E', 'P', 'S', 'F')     
+    /* Encapsulated Postscript chunk */
+#define ID_CMYK     MAKE_ID('C', 'M', 'Y', 'K')     
+    /* Cyan, Magenta, Yellow, & Black color map (Soft-Logik) */
+#define ID_CNAM     MAKE_ID('C', 'N', 'A', 'M')     
+    /* Color naming chunk (Soft-Logik) */
+#define ID_PCHG     MAKE_ID('P', 'C', 'H', 'G')     
+    /* Line by line palette control information (Sebastiano Vigna) */
+#define ID_PRVW     MAKE_ID('P', 'R', 'V', 'W')     
+    /* A mini duplicate ILBM used for preview (Gary Bonham) */
+#define ID_XBMI     MAKE_ID('X', 'B', 'M', 'I')     
+    /* eXtended BitMap Information (Soft-Logik) */
+#define ID_CTBL     MAKE_ID('C', 'T', 'B', 'L')     
+    /* Newtek Dynamic Ham color chunk */
+#define ID_DYCP     MAKE_ID('D', 'Y', 'C', 'P')     
+    /* Newtek Dynamic Ham chunk */
+#define ID_SHAM     MAKE_ID('S', 'H', 'A', 'M')     
+    /* Sliced HAM color chunk */
+#define ID_ABIT     MAKE_ID('A', 'B', 'I', 'T')     
+    /* ACBM body chunk */
+#define ID_DCOL     MAKE_ID('D', 'C', 'O', 'L')     
+    /* unofficial direct color */
+#define ID_DPPS     MAKE_ID('D', 'P', 'P', 'S')
+    /* ? */
+#define ID_TINY     MAKE_ID('T', 'I', 'N', 'Y')
+    /* ? */
+
+/* other stuff */
+
+#define MAXPLANES       16
+typedef unsigned short  rawtype;
+
+#define MAXCMAPCOLORS   (1 << MAXPLANES)
+#define MAXCOLVAL       255     /* max value of color component */
+
+#endif