prj/tech/libsrc/dev2d/fl8fl8.c

   1 // $Header: x:/prj/tech/libsrc/dev2d/RCS/fl8fl8.c 1.6 1997/02/07 11:21:45 KEVIN Exp $
   2 // Routines for drawing flat8 bitmaps into a flat8 canvas.
   3
   4 #include <dbg.h>
   5 #include <astring.h>
   6
   7 #include <grd.h>
   8 #include <bitmap.h>
   9 #include <context.h>
  10
  11 void flat8_flat8_opaque_ubitmap (grs_bitmap *bm, int x, int y)
  12 {
  13    uchar *src;
  14    uchar *dst;
  15    int w = bm->w;
  16    int h = bm->h;
  17    void (*memcpy_func)(void *dst, void *src, int count);
  18
  19    Assrt((w>0)&&(h>0));
  20
  21    src = bm->bits;
  22    dst = grd_bm.bits + grd_bm.row*y + x;
  23
  24    if (bm->flags&BMF_DEVICE_VIDMEM) {
  25       if ((grd_bm.flags&BMF_DEVICE_VIDMEM) &&
  26           (((long )src)&3!=((long )dst)&3)) {
  27          memcpy_func = memcpy_by_byte;
  28       } else {
  29          memcpy_func = memcpy_align_src;
  30       }
  31    } else {
  32       if (grd_bm.flags&BMF_DEVICE_VIDMEM) {
  33          memcpy_func = memcpy_align_dst;
  34       } else {
  35          memcpy_func = memcpy_cache_dst;
  36       }
  37    }
  38    while (h--) {
  39       memcpy_func (dst, src, w);
  40       src += bm->row;
  41       dst += grd_bm.row;
  42    }
  43 }
  44
  45 void flat8_flat8_trans_ubitmap (grs_bitmap *bm, int x, int y)
  46 {
  47    uchar *src;
  48    uchar *dst;
  49    int w = bm->w;
  50    int h = bm->h;
  51    int i;
  52
  53    src = bm->bits;
  54    dst = grd_bm.bits + grd_bm.row*y + x;
  55
  56    while (h--) {
  57       for (i=0; i<w; i++)
  58          if (src[i]!=0) dst[i]=src[i];
  59       src += bm->row;
  60       dst += grd_bm.row;
  61    }
  62 }
  63
  64 void flat8_flat8_opaque_clut_ubitmap (grs_bitmap *bm, int x, int y)
  65 {
  66    uchar *src;
  67    uchar *dst;
  68    uchar *clut = (uchar *)gr_get_fill_parm();
  69    int w = bm->w;
  70    int h = bm->h;
  71
  72    src = bm->bits;
  73    dst = grd_bm.bits + grd_bm.row*y + x;
  74
  75    while (h--) {
  76       int i;
  77       for (i=0; i<w; i++)
  78          if (src[i]!=0) dst[i]=clut[src[i]];
  79       src += bm->row;
  80       dst += grd_bm.row;
  81    }
  82 }
  83
  84 void flat8_flat8_trans_clut_ubitmap (grs_bitmap *bm, int x, int y)
  85 {
  86    uchar *src;
  87    uchar *dst;
  88    uchar *clut = (uchar *)gr_get_fill_parm();
  89    int w = bm->w;
  90    int h = bm->h;
  91
  92    src = bm->bits;
  93    dst = grd_bm.bits + grd_bm.row*y + x;
  94
  95    while (h--) {
  96       int i;
  97       for (i=0; i<w; i++)
  98          if (src[i]!=0) dst[i]=clut[src[i]];
  99       src += bm->row;
 100       dst += grd_bm.row;
 101    }
 102 }
 103
 104 void flat8_flat8_trans_solid_ubitmap (grs_bitmap *bm, int x, int y)
 105 {
 106    uchar *src;
 107    uchar *dst;
 108    int w = bm->w;
 109    int h = bm->h;
 110    uchar c = (uchar )gr_get_fill_parm();
 111
 112    src = bm->bits;
 113    dst = grd_bm.bits + grd_bm.row*y + x;
 114
 115    while (h--) {
 116       int i;
 117       for (i=0; i<w; i++)
 118          if (src[i]!=0) dst[i]=c;
 119       src += bm->row;
 120       dst += grd_bm.row;
 121    }
 122 }