vpdf/system/chunky.h

   1 /*
   2         chunky.h
   3
   4         Chunky image structure definition.
   5         v1.0 translated from AmigaE.
   6 */
   7
   8 #ifndef _CHUNKY_H
   9 #define _CHUNKY_H
  10
  11 typedef union
  12 {
  13         unsigned char   *dataB;
  14         unsigned int    *dataL;
  15         unsigned short  *dataW;
  16 } dataPointer;
  17
  18 typedef struct  chkimage
  19 {
  20         int     width,height;
  21     union
  22         {
  23                 unsigned char   *b;
  24                 unsigned int    *l;
  25                 unsigned short  *w;
  26                 void                    *p;
  27         }data ;
  28         int     pixfmt;                                 /*      image format (CHK_PIXFMTXXX) */
  29 } ChkImage;
  30
  31 typedef struct  texture
  32 {
  33         struct  texture *next;          /* for list support */
  34         struct  texture *prev;
  35
  36         ChkImage        *image;
  37         int             private;                        /* is texture used as private in engine */
  38
  39         char    *name;                          /* texture filename */
  40         char    *alphaname;                     /* texture's alphaimage filename */
  41         int             openc;                          /* opening count */
  42         ChkImage        *second;                /* this is allocated with txt_AllocSecondBuffer() */
  43
  44         float   x0,y0,scale;
  45         float   x,y;
  46         int             filtered;
  47         int             additive;
  48         int             substractive;
  49         float   transparency;
  50
  51         void    *rendererTexture;       /* renderer specific data */
  52         void    *env;                           /* enviroment. used by some functions. */
  53
  54         char    *type;                          /* */
  55
  56 } Texture;
  57
  58 ChkImage*               chkCreate( int width, int height, int format, int zero );
  59 void                    chkFree(ChkImage *image);
  60
  61 ChkImage*               chk_AllocImageStruct(int,int);
  62
  63
  64 ChkImage*               chk_Duplicate(struct chkimage *);
  65 ChkImage                *chkResize(ChkImage *img, int width, int height, int filter);
  66 ChkImage                *chkResizeExt(ChkImage *img, int width, int height, int destfmt, int flags);
  67 void                    chkResizeInplace(ChkImage *img, int width, int height, int filter);
  68 void                    chk_DimRadial(struct    chkimage        *,float);
  69 void                    chk_Clear(struct        chkimage        *i,int k);
  70 void                    chk_Copy(struct chkimage        *simage,struct chkimage *dimage);
  71 ChkImage*               chk_CreateImageFromMem(void     *memory,int width,int height);
  72 void                    chk_DimRadialXY(struct  chkimage *image,int x,int y,int r,float factor);
  73
  74 int                             chkGetBytesPerPixel( ChkImage   *img );
  75 int                             fmtGetBytesPerPixel( int format );
  76
  77
  78 void    chk_CopyArea(struct     chkimage        *i1,int sx,int sy,struct        chkimage        *i2);
  79
  80 void    txt_Negative(struct     texture *txt);
  81 void    txt_Spherical(struct texture *txt);
  82
  83 void chk_ReadARGBPixel(struct chkimage *img, int x, int y, int *a, int *r, int *g, int *b);
  84 void chk_WriteARGBPixel(struct chkimage *img, int x, int y, int a, int r, int g, int b);
  85 #define chkReadARGBPixel chk_ReadARGBPixel
  86 #define chkWriteARGBPixel chk_WriteARGBPixel
  87
  88 void chkFillImage(ChkImage *img, int r, int g, int b, int a);
  89 int chkHasAlphaInformation(ChkImage *img);
  90
  91 void chkConvert(unsigned char *src, int sfmt, unsigned char *dst, int dfmt, int width, int height);
  92
  93
  94 // chkuny image pixel formats
  95 // CHK_PIXFMT_RGB565    -       used for normal textures
  96 // CHK_PIXFMT_ARGB4444  -       used for textures with alpha channel
  97 // CHK_PIXFMT_ARGB8888  -       used for high quality textures
  98
  99
 100 #define CHK_PIXFMT_RGB888               0
 101 #define CHK_PIXFMT_RGBA8888             1
 102 #define CHK_PIXFMT_RGB565               2
 103 #define CHK_PIXFMT_LUT                  3
 104 #define CHK_PIXFMT_ARGB4444             4
 105 #define CHK_PIXFMT_RGBA5551             5
 106 #define CHK_PIXFMT_ARGB1555             6
 107 #define CHK_PIXFMT_ARGB8888             7
 108 #define CHK_PIXFMT_LUMINANCE    8
 109 #define CHK_PIXFMT_ALPHA                9
 110 #define CHK_PIXFMT_YUV422               10
 111 #define CHK_PIXFMT_YUV422C              11
 112
 113 #define CHK_CHANNEL_LUMINANCE 1
 114 #define CHK_CHANNEL_CHROMINANCE 2
 115 #define CHK_CHANNEL_SATURATION 4
 116 #define CHK_CHANNEL_Y 8
 117 #define CHK_CHANNEL_U 16
 118 #define CHK_CHANNEL_V 32
 119 #define CHK_CHANNEL_R 64
 120 #define CHK_CHANNEL_G 128
 121 #define CHK_CHANNEL_B 256
 122
 123 #endif