Shamusworld >> Repos - virtualjaguar/blob - src/include/zbmpop16p.h

   1                 if (flags&FLAGS_READMODIFY)
   2                 {
   3                         if (flags&FLAGS_HFLIP)
   4                         {
   5                                 if (flags&FLAGS_TRANSPARENT)
   6                                 {
   7                                         while (scaled_width)
   8                                         {
   9                                                 uint16 c=jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+0);;
  10                                                 c<<=8;
  11                                                 c|=jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+1);
  12                                                 if (c)
  13                                                 {
  14                                                         *current_line_buffer--=BLEND_Y(*current_line_buffer,(c>>8));
  15                                                         *current_line_buffer--=BLEND_CC(*current_line_buffer,(c&0xff));
  16                                                 }
  17                                                 else
  18                                                         current_line_buffer-=2;
  19                                                 cnt+=hscale_fixed;
  20                                                 scaled_width--;
  21                                         }
  22                                 }
  23                                 else
  24                                 {
  25                                         while (scaled_width)
  26                                         {
  27                                                 *current_line_buffer--=BLEND_Y(*current_line_buffer,jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+0));
  28                                                 *current_line_buffer--=BLEND_CC(*current_line_buffer,jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+1));
  29                                                 cnt+=hscale_fixed;
  30                                                 scaled_width--;
  31                                         }
  32                                 }
  33                         }
  34                         else
  35                         {
  36                                 if (flags&FLAGS_TRANSPARENT)
  37                                 {
  38                                         while (scaled_width)
  39                                         {
  40                                                 uint16 c=jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+0);;
  41                                                 c<<=8;
  42                                                 c|=jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+1);
  43                                                 if (c)
  44                                                 {
  45                                                         *current_line_buffer++=BLEND_Y(*current_line_buffer,(c>>8));
  46                                                         *current_line_buffer++=BLEND_CC(*current_line_buffer,(c&0xff));
  47                                                 }
  48                                                 else
  49                                                         current_line_buffer+=2;
  50                                                 cnt+=hscale_fixed;
  51                                                 scaled_width--;
  52                                         }
  53                                 }
  54                                 else
  55                                 {
  56                                         while (scaled_width)
  57                                         {
  58                                                 *current_line_buffer++=BLEND_Y(*current_line_buffer,jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+0));
  59                                                 *current_line_buffer++=BLEND_CC(*current_line_buffer,jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+1));
  60                                                 cnt+=hscale_fixed;
  61                                                 scaled_width--;
  62                                         }
  63                                 }
  64                         }
  65                 }
  66                 else
  67                 {
  68                         if (flags&FLAGS_HFLIP)
  69                         {
  70                                 if (flags&FLAGS_TRANSPARENT)
  71                                 {
  72                                         while (scaled_width)
  73                                         {
  74                                                 uint16 c=jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+0);;
  75                                                 c<<=8;
  76                                                 c|=jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+1);
  77                                                 if (c)
  78                                                 {
  79                                                         *current_line_buffer--=(c>>8);
  80                                                         *current_line_buffer--=(c&0xff);
  81                                                 }
  82                                                 else
  83                                                         current_line_buffer-=2;
  84                                                 cnt+=hscale_fixed;
  85                                                 scaled_width--;
  86                                         }
  87                                 }
  88                                 else
  89                                 {
  90                                         while (scaled_width)
  91                                         {
  92                                                 *current_line_buffer--=jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+0);
  93                                                 *current_line_buffer--=jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+1);
  94                                                 cnt+=hscale_fixed;
  95                                                 scaled_width--;
  96                                         }
  97                                 }
  98                         }
  99                         else
 100                         {
 101                                 if (flags&FLAGS_TRANSPARENT)
 102                                 {
 103                                         while (scaled_width)
 104                                         {
 105                                                 uint16 c=jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+0);;
 106                                                 c<<=8;
 107                                                 c|=jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+1);
 108                                                 if (c)
 109                                                 {
 110                                                         *current_line_buffer++=(c>>8);
 111                                                         *current_line_buffer++=(c&0xff);
 112                                                 }
 113                                                 else
 114                                                         current_line_buffer+=2;
 115                                                 cnt+=hscale_fixed;
 116                                                 scaled_width--;
 117                                         }
 118                                 }
 119                                 else
 120                                 {
 121                                         while (scaled_width)
 122                                         {
 123                                                 *current_line_buffer++=jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+0);
 124                                                 *current_line_buffer++=jaguar_byte_read(ptr+((((cnt>>16) & (~0x3))*pitch)+((cnt>>16)&0x3)<<1)+1);
 125                                                 cnt+=hscale_fixed;
 126                                                 scaled_width--;
 127                                         }
 128                                 }
 129                         }
 130                 }