Shamusworld >> Repos - virtualjaguar/blob - src/include/zbmpop8p.h

   1                 uint8   *paletteRam=&tom_ram_8[0x400];
   2                 paletteRam+=(idx&0x1)*256*2;
   3                 if (flags&FLAGS_READMODIFY)
   4                 {
   5                         if (flags&FLAGS_HFLIP)
   6                         {
   7                                 while (scaled_width)
   8                                 {
   9                                         uint32 c=jaguar_byte_read(ptr+(((cnt>>16) & (~0x07))*pitch)+((cnt>>16)&0x07));
  10                                         c<<=1;
  11                                         if (flags&FLAGS_TRANSPARENT)
  12                                         {
  13                                                 if (c)
  14                                                 {
  15                                                         *current_line_buffer--=BLEND_Y(*current_line_buffer,paletteRam[c+0]);
  16                                                         *current_line_buffer--=BLEND_CC(*current_line_buffer,paletteRam[c+1]);
  17                                                 }
  18                                                 else
  19                                                         current_line_buffer-=2;
  20                                         }
  21                                         else
  22                                         {
  23                                                 *current_line_buffer--=BLEND_Y(*current_line_buffer,paletteRam[c+0]);
  24                                                 *current_line_buffer--=BLEND_CC(*current_line_buffer,paletteRam[c+1]);
  25                                         }
  26
  27                                         cnt+=hscale_fixed;
  28                                         scaled_width--;
  29                                 }
  30                         }
  31                         else
  32                         {
  33                                 while (scaled_width)
  34                                 {
  35                                         uint32 c=jaguar_byte_read(ptr+(((cnt>>16) & (~0x07))*pitch)+((cnt>>16)&0x07));
  36                                         c<<=1;
  37                                         if (flags&FLAGS_TRANSPARENT)
  38                                         {
  39                                                 if (c)
  40                                                 {
  41                                                         *current_line_buffer++=BLEND_Y(*current_line_buffer,paletteRam[c+0]);
  42                                                         *current_line_buffer++=BLEND_CC(*current_line_buffer,paletteRam[c+1]);
  43                                                 }
  44                                                 else
  45                                                         current_line_buffer+=2;
  46                                         }
  47                                         else
  48                                         {
  49                                                 *current_line_buffer++=BLEND_Y(*current_line_buffer,paletteRam[c+0]);
  50                                                 *current_line_buffer++=BLEND_CC(*current_line_buffer,paletteRam[c+1]);
  51                                         }
  52
  53                                         cnt+=hscale_fixed;
  54                                         scaled_width--;
  55                                 }
  56                         }
  57                 }
  58                 else
  59                 {
  60                         if (flags&FLAGS_HFLIP)
  61                         {
  62                                 while (scaled_width)
  63                                 {
  64                                         uint32 c=jaguar_byte_read(ptr+(((cnt>>16) & (~0x07))*pitch)+((cnt>>16)&0x07));
  65                                         c<<=1;
  66                                         if (flags&FLAGS_TRANSPARENT)
  67                                         {
  68                                                 if (c)
  69                                                 {
  70                                                         *current_line_buffer--=paletteRam[c+0];
  71                                                         *current_line_buffer--=paletteRam[c+1];
  72                                                 }
  73                                                 else
  74                                                         current_line_buffer-=2;
  75                                         }
  76                                         else
  77                                         {
  78                                                 *current_line_buffer--=paletteRam[c+0];
  79                                                 *current_line_buffer--=paletteRam[c+1];
  80                                         }
  81
  82                                         cnt+=hscale_fixed;
  83                                         scaled_width--;
  84                                 }
  85                         }
  86                         else
  87                         {
  88                                 while (scaled_width)
  89                                 {
  90                                         uint32 c=jaguar_byte_read(ptr+(((cnt>>16) & (~0x07))*pitch)+((cnt>>16)&0x07));
  91                                         c<<=1;
  92                                         if (flags&FLAGS_TRANSPARENT)
  93                                         {
  94                                                 if (c)
  95                                                 {
  96                                                         *current_line_buffer++=paletteRam[c+0];
  97                                                         *current_line_buffer++=paletteRam[c+1];
  98                                                 }
  99                                                 else
 100                                                         current_line_buffer+=2;
 101                                         }
 102                                         else
 103                                         {
 104                                                 *current_line_buffer++=paletteRam[c+0];
 105                                                 *current_line_buffer++=paletteRam[c+1];
 106                                         }
 107
 108                                         cnt+=hscale_fixed;
 109                                         scaled_width--;
 110                                 }
 111                         }
 112                 }