diff options
Diffstat (limited to 'src/drv')
| -rw-r--r-- | src/drv/cdirgb.c | 61 |
1 files changed, 40 insertions, 21 deletions
diff --git a/src/drv/cdirgb.c b/src/drv/cdirgb.c index ddbcb4d..8baef1e 100644 --- a/src/drv/cdirgb.c +++ b/src/drv/cdirgb.c @@ -58,11 +58,33 @@ struct _cdCtxCanvas #define RGB_COMPOSE_OVER(_SRC, _SRC_ALPHA, _DST, _TMP_MULTI, _TMP_ALPHA) (unsigned char)(((_SRC_ALPHA)*(_SRC) + (_TMP_MULTI)*(_DST)) / (_TMP_ALPHA)) +#define RGBA_WRITE_MODE(_write_mode, _pdst_red, _pdst_green, _pdst_blue, _tmp_red, _tmp_green, _tmp_blue) \ +{ \ + switch (_write_mode) \ + { \ + case CD_REPLACE: \ + *_pdst_red = _tmp_red; \ + *_pdst_green = _tmp_green; \ + *_pdst_blue = _tmp_blue; \ + break; \ + case CD_XOR: \ + *_pdst_red ^= _tmp_red; \ + *_pdst_green ^= _tmp_green; \ + *_pdst_blue ^= _tmp_blue; \ + break; \ + case CD_NOT_XOR: \ + *_pdst_red = (unsigned char)~(_tmp_red ^ *_pdst_red); \ + *_pdst_green = (unsigned char)~(_tmp_green ^ *_pdst_green); \ + *_pdst_blue = (unsigned char)~(_tmp_blue ^ *_pdst_blue); \ + break; \ + } \ +} + #define RGBA_COLOR_COMBINE(_ctxcanvas, _pdst_red, _pdst_green, _pdst_blue, _pdst_alpha, _src_red, _src_green, _src_blue, _src_alpha) \ { \ - unsigned char _tmp_red = 0, _tmp_green = 0, _tmp_blue = 0; \ + unsigned char _tmp_red = 0, _tmp_green = 0, _tmp_blue = 0; \ \ - if (_pdst_alpha) /* destiny has alpha */ \ + if (_pdst_alpha) /* destiny has alpha */ \ { \ if (_src_alpha != 255) /* some transparency */ \ { \ @@ -74,6 +96,8 @@ struct _cdCtxCanvas _tmp_green = _src_green; \ _tmp_blue = _src_blue; \ *_pdst_alpha = _src_alpha; \ + RGBA_WRITE_MODE(CD_REPLACE, _pdst_red, _pdst_green, _pdst_blue, \ + _tmp_red, _tmp_green, _tmp_blue); \ } \ else if (*_pdst_alpha == 255) /* destiny opaque */ \ { \ @@ -81,6 +105,8 @@ struct _cdCtxCanvas _tmp_green = CD_ALPHA_BLEND(_src_green, *_pdst_green, _src_alpha); \ _tmp_blue = CD_ALPHA_BLEND(_src_blue, *_pdst_blue, _src_alpha); \ /* *_pdst_alpha is not changed */ \ + RGBA_WRITE_MODE(CD_REPLACE, _pdst_red, _pdst_green, _pdst_blue, \ + _tmp_red, _tmp_green, _tmp_blue); \ } \ else /* (0<*_pdst_alpha<255 && 0<_src_alpha<255) destiny and source are semi-transparent */ \ { \ @@ -96,6 +122,8 @@ struct _cdCtxCanvas _tmp_green = RGB_COMPOSE_OVER(_src_green, _tmp_src_alpha, *_pdst_green, _tmp_multi, _tmp_alpha); \ _tmp_blue = RGB_COMPOSE_OVER(_src_blue, _tmp_src_alpha, *_pdst_blue, _tmp_multi, _tmp_alpha); \ *_pdst_alpha = (unsigned char)(_tmp_alpha / 255); \ + RGBA_WRITE_MODE(CD_REPLACE, _pdst_red, _pdst_green, _pdst_blue, \ + _tmp_red, _tmp_green, _tmp_blue); \ } \ } \ else /* (_src_alpha == 0) source full transparent */ \ @@ -103,6 +131,8 @@ struct _cdCtxCanvas _tmp_red = *_pdst_red; \ _tmp_green = *_pdst_green; \ _tmp_blue = *_pdst_blue; \ + RGBA_WRITE_MODE(CD_REPLACE, _pdst_red, _pdst_green, _pdst_blue, \ + _tmp_red, _tmp_green, _tmp_blue); \ /* *_pdst_alpha is not changed */ \ } \ } \ @@ -112,6 +142,8 @@ struct _cdCtxCanvas _tmp_green = _src_green; \ _tmp_blue = _src_blue; \ *_pdst_alpha = (unsigned char)255; /* set destiny as opaque */ \ + RGBA_WRITE_MODE(_ctxcanvas->canvas->write_mode, _pdst_red, _pdst_green, _pdst_blue, \ + _tmp_red, _tmp_green, _tmp_blue); \ } \ } \ else /* destiny does NOT have alpha */ \ @@ -123,12 +155,16 @@ struct _cdCtxCanvas _tmp_red = CD_ALPHA_BLEND(_src_red, *_pdst_red, _src_alpha); \ _tmp_green = CD_ALPHA_BLEND(_src_green, *_pdst_green, _src_alpha); \ _tmp_blue = CD_ALPHA_BLEND(_src_blue, *_pdst_blue, _src_alpha); \ + RGBA_WRITE_MODE(CD_REPLACE, _pdst_red, _pdst_green, _pdst_blue, \ + _tmp_red, _tmp_green, _tmp_blue); \ } \ else /* (_src_alpha == 0) source full transparent */ \ { \ _tmp_red = *_pdst_red; \ _tmp_green = *_pdst_green; \ _tmp_blue = *_pdst_blue; \ + RGBA_WRITE_MODE(CD_REPLACE, _pdst_red, _pdst_green, _pdst_blue, \ + _tmp_red, _tmp_green, _tmp_blue); \ } \ } \ else /* (_src_alpha == 255) source has no alpha = opaque */ \ @@ -136,27 +172,10 @@ struct _cdCtxCanvas _tmp_red = _src_red; \ _tmp_green = _src_green; \ _tmp_blue = _src_blue; \ + RGBA_WRITE_MODE(_ctxcanvas->canvas->write_mode, _pdst_red, _pdst_green, _pdst_blue, \ + _tmp_red, _tmp_green, _tmp_blue); \ } \ } \ - \ - switch (_ctxcanvas->canvas->write_mode) \ - { \ - case CD_REPLACE: \ - *_pdst_red = _tmp_red; \ - *_pdst_green = _tmp_green; \ - *_pdst_blue = _tmp_blue; \ - break; \ - case CD_XOR: \ - *_pdst_red ^= _tmp_red; \ - *_pdst_green ^= _tmp_green; \ - *_pdst_blue ^= _tmp_blue; \ - break; \ - case CD_NOT_XOR: \ - *_pdst_red = (unsigned char)~(_tmp_red ^ *_pdst_red); \ - *_pdst_green = (unsigned char)~(_tmp_green ^ *_pdst_green); \ - *_pdst_blue = (unsigned char)~(_tmp_blue ^ *_pdst_blue); \ - break; \ - } \ } static void sCombineRGBColor(cdCtxCanvas* ctxcanvas, int offset, long color) |