{
const int i_line_orig = (i_line_orig0>>12) + i_line_center;
const int i_col_orig = (i_col_orig0>>12) + i_col_center;
- int i_line_percent = (i_line_orig0>>4) & 255;
- int i_col_percent = (i_col_orig0 >>4) & 255;
+ const uint8_t* p_orig_offset = p_in + i_line_orig * i_pitch
+ + i_col_orig;
+ const uint8_t i_line_percent = (i_line_orig0>>4) & 255;
+ const uint8_t i_col_percent = (i_col_orig0 >>4) & 255;
if( -1 <= i_line_orig && i_line_orig < i_visible_lines
&& -1 <= i_col_orig && i_col_orig < i_visible_pitch )
{
- uint8_t i_curpix = black_pixel;
- uint8_t i_colpix = black_pixel;
- uint8_t i_linpix = black_pixel;
- uint8_t i_nexpix = black_pixel;
- if( ( 0 <= i_line_orig ) && ( 0 <= i_col_orig ) )
- i_curpix = p_in[i_line_orig*i_pitch+i_col_orig];
- if( ( i_line_orig < i_visible_lines - 1)
- && ( i_col_orig >= 0 ) )
- {
- i_linpix=p_in[(i_line_orig+1)*i_pitch+i_col_orig];
-
- }
- if( ( i_col_orig < i_visible_pitch - 1)
- && ( i_line_orig >= 0 ) )
- {
- i_colpix=p_in[i_line_orig*i_pitch+i_col_orig+1];
- }
- if( ( i_line_orig < i_visible_lines - 1)
- && ( i_col_orig < i_visible_pitch - 1) )
- i_nexpix = p_in[(i_line_orig+1)*i_pitch+i_col_orig+1];
-
#define test 1
#undef test
#ifdef test
if( ( i_col_orig > i_visible_pitch/2 ) )
#endif
{
+ uint8_t i_curpix = black_pixel;
+ uint8_t i_colpix = black_pixel;
+ uint8_t i_linpix = black_pixel;
+ uint8_t i_nexpix = black_pixel;
+ if( ( 0 <= i_line_orig ) && ( 0 <= i_col_orig ) )
+ i_curpix = *p_orig_offset;
+ p_orig_offset++;
+
+ if( ( i_col_orig < i_visible_pitch - 1)
+ && ( i_line_orig >= 0 ) )
+ i_colpix=*p_orig_offset;
+
+ p_orig_offset+=i_pitch;
+ if( ( i_line_orig < i_visible_lines - 1)
+ && ( i_col_orig < i_visible_pitch - 1) )
+ i_nexpix=*p_orig_offset;
+
+ p_orig_offset--;
+ if( ( i_line_orig < i_visible_lines - 1)
+ && ( i_col_orig >= 0 ) )
+ i_linpix=*p_orig_offset;
+
unsigned int temp = 0;
temp+= i_curpix *
(256 - i_line_percent) * ( 256 - i_col_percent );
{ *p_out = black_pixel;
}
else
- *p_out = p_in[i_line_orig*i_pitch+i_col_orig];
+ *p_out = *p_orig_offset;
#endif
#undef test
}