diff options
Diffstat (limited to 'source/blender/imbuf/intern/antialias.c')
| -rw-r--r-- | source/blender/imbuf/intern/antialias.c | 65 |
1 files changed, 28 insertions, 37 deletions
diff --git a/source/blender/imbuf/intern/antialias.c b/source/blender/imbuf/intern/antialias.c index 6c6513bd107..48384c51915 100644 --- a/source/blender/imbuf/intern/antialias.c +++ b/source/blender/imbuf/intern/antialias.c @@ -46,32 +46,23 @@ #include <config.h> #endif -/* werking: +/* how it works: -1 - zoek een overgang in een kolom -2 - kijk wat de relatie met links en rechts is, - - Is pixel boven overgang links of rechts ervan gelijk aan bovenste kleur, - zoek dan naar beneden. - - Is pixel onder overgang links of rechts ervan gelijk aan onderste kleur, - zoek dan naar boven. - - +1 - seek for a transistion in a collumn +2 - check the relationship with left and right, + +Is pixel above transition to the left or right equal to the top color, seek down + +Is pixel below transition to the left or right equal to the bottom color, seek up + */ -/* er moet een functie * komen die aan kan geven of twee kleuren nu - * wel of niet gelijk zijn. - * Voor nu maar een define +/* there should be a funcion * to indicate if two colors are + * equal or not. + * For now we use a define */ -/* - zipfork "cc -g anti.c util.o -lgl_s -limbuf -limage -lm -o anti > /dev/console" - zipfork "anti /data/rt > /dev/console" - zipfork "anti /pics/martin/03.01.ChambFinal/0001 > /dev/console" -*/ - static unsigned int anti_mask = 0xffffffff; static int anti_a, anti_b, anti_g, anti_r; @@ -162,12 +153,12 @@ static Edge * findmatch(Edge * first, Edge * edge) if (first->next == 0) match = first; else if (first->next->position >= edge->position) match = first; } else if (first->col2 == edge->col1) { - match = 0; /* bij zigzagjes kan deze al 'ns foutief gezet zijn */ + match = 0; /* at 'sig saw' situations this one can be wrongly set */ } } else if (first->position == edge->position) { if (first->col1 == edge->col1 || first->col2 == edge->col2) match = first; } else { - if (match) break; /* er is er al een */ + if (match) break; /* there is one */ if (first->col1 == edge->col1) { if (first->prev == 0) match = first; @@ -190,8 +181,8 @@ static void filterdraw(unsigned int * ldest, unsigned int * lsrce, int zero, int int count; double weight, add; - /* we filteren de pixels op ldest tussen in en out met pixels van lsrce - * Het gewicht loopt ondertussen van 0 naar 1 + /* we filter the pixels at ldest between in and out with pixels from lsrce + * weight values go from 0 to 1 */ @@ -218,7 +209,7 @@ static void filterdraw(unsigned int * ldest, unsigned int * lsrce, int zero, int add = 0.5 / count; weight = 0.5 * add; - /* dit moet natuurlijk gamma gecorrigeerd */ + /* this of course gamma corrected */ for(; count > 0; count --) { if (anti_a) dst[0] += weight * (src[0] - dst[0]); @@ -260,11 +251,11 @@ static void filterimage(struct ImBuf * ibuf, struct ImBuf * cbuf, ListBase * lis drawboth = FALSE; if (left == 0 || right == 0) { - /* rand */ + /* edge */ any = left; if (right) any = right; if (any) { - /* spiegelen */ + /* mirroring */ pos = 2 * middle->position - any->position; if (any->position < middle->position) { @@ -290,18 +281,18 @@ static void filterimage(struct ImBuf * ibuf, struct ImBuf * cbuf, ListBase * lis drawboth = TRUE; } } else if (left->position == middle->position || right->position == middle->position) { - /* recht stuk */ - /* klein hoekje, met een van de twee op afstand 2 (ander is toch op afstand 0) ? */ + /* straight piece */ + /* small corner, with one of the two at distance 2 (the other is at dist 0) ? */ if (abs(left->position - right->position) == 2) drawboth = TRUE; } else if (left->position < middle->position && right->position > middle->position){ - /* trap 1 */ + /* stair 1 */ drawboth = TRUE; } else if (left->position > middle->position && right->position < middle->position){ - /* trap 2 */ + /* stair 2 */ drawboth = TRUE; } else { - /* piek */ + /* a peek */ drawboth = TRUE; } @@ -345,7 +336,7 @@ void IMB_antialias(struct ImBuf * ibuf) } -/* intelligente scaling */ +/* intelligent scaling */ static void _intel_scale(struct ImBuf * ibuf, ListBase * listarray, int dir) { @@ -440,12 +431,12 @@ void IMB_clever_double(struct ImBuf * ibuf) for (i = 0; i < size; i++) { curlist = listarray + i; new = (Edge*)MEM_callocN(sizeof(Edge),"Edge"); - new->col2 = ibuf->rect[i]; /* bovenste pixel */ + new->col2 = ibuf->rect[i]; /* upper pixel */ new->col1 = new->col2 - 1; BLI_addhead(curlist, new); new = (Edge*)MEM_callocN(sizeof(Edge),"Edge"); new->position = ibuf->y - 1; - new->col1 = ibuf->rect[i + ((ibuf->y -1) * ibuf->x)]; /* onderste pixel */ + new->col1 = ibuf->rect[i + ((ibuf->y -1) * ibuf->x)]; /* bottom pixel */ new->col2 = new->col1 - 1; BLI_addtail(curlist, new); } @@ -458,12 +449,12 @@ void IMB_clever_double(struct ImBuf * ibuf) for (i = 0; i < size; i++) { curlist = listarray + i; new = (Edge*)MEM_callocN(sizeof(Edge),"Edge"); - new->col2 = ibuf->rect[i * ibuf->x]; /* linkse pixel */ + new->col2 = ibuf->rect[i * ibuf->x]; /* left pixel */ new->col1 = new->col2 - 1; BLI_addhead(curlist, new); new = (Edge*)MEM_callocN(sizeof(Edge),"Edge"); new->position = ibuf->x - 1; - new->col1 = ibuf->rect[((i + 1) * ibuf->x) - 1]; /* rechtse pixel */ + new->col1 = ibuf->rect[((i + 1) * ibuf->x) - 1]; /* right pixel */ new->col2 = new->col1 - 1; BLI_addtail(curlist, new); } |