forked from old/legacy-imlib2
Lots of changes. Macro-ised the point_on_segment code.
Implemented a span-list clipper. Inlined the drawing code for span(). Cleaned up and speeded up a couple of drawing funcs. Polygons filled much faster now. More to do though. SVN revision: 3480
This commit is contained in:
parent
220207d492
commit
9cef1b4308
161
src/rgbadraw.c
161
src/rgbadraw.c
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@ -1848,9 +1848,9 @@ __imlib_fill_ellipse_clipped(ImlibImage * im, int xc, int yc, int aa, int bb,
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for (i = y1; i <= y2; i++)
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for (i = y1; i <= y2; i++)
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{
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{
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if ((xc - x) >= clip_xmin && (xc - x) <= clip_xmax)
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if ((xc - x) >= clip_xmin && (xc - x) <= clip_xmax)
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__imlib_draw_set_point(im, xc - x, i, r, g, b, a, op);
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__imlib_draw_set_point(im, xc - x, i, r, g, b, a, op);
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if ((xc + x) >= clip_xmin && (xc + x) <= clip_xmax)
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if ((xc + x) >= clip_xmin && (xc + x) <= clip_xmax)
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__imlib_draw_set_point(im, xc + x, i, r, g, b, a, op);
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__imlib_draw_set_point(im, xc + x, i, r, g, b, a, op);
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}
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}
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if (dec >= 0)
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if (dec >= 0)
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@ -1871,9 +1871,9 @@ __imlib_fill_ellipse_clipped(ImlibImage * im, int xc, int yc, int aa, int bb,
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for (i = y1; i <= y2; i++)
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for (i = y1; i <= y2; i++)
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{
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{
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if ((xc + x) >= clip_xmin && (xc + x) <= clip_xmax)
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if ((xc + x) >= clip_xmin && (xc + x) <= clip_xmax)
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__imlib_draw_set_point(im, xc + x, i, r, g, b, a, op);
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__imlib_draw_set_point(im, xc + x, i, r, g, b, a, op);
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if ((xc - x) >= clip_xmin && (xc - x) <= clip_xmax)
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if ((xc - x) >= clip_xmin && (xc - x) <= clip_xmax)
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__imlib_draw_set_point(im, xc - x, i, r, g, b, a, op);
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__imlib_draw_set_point(im, xc - x, i, r, g, b, a, op);
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}
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}
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if (dec >= 0)
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if (dec >= 0)
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@ -1996,20 +1996,6 @@ __imlib_draw_set_point_clipped(ImlibImage * im, int x, int y, int clip_xmin,
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}
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}
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}
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}
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#define exchange(type, a, b) \
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{ \
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type _t_; \
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_t_ = a; \
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a = b; \
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b = _t_; \
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}
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typedef struct
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{
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int x;
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}
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edgeRec;
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static void
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static void
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edge(edgeRec * table, ImlibPoint * pt1, ImlibPoint * pt2)
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edge(edgeRec * table, ImlibPoint * pt1, ImlibPoint * pt2)
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{
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{
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@ -2042,59 +2028,42 @@ static void
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span(ImlibImage * im, int y, edgeRec * pt1, edgeRec * pt2, DATA8 r, DATA8 g,
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span(ImlibImage * im, int y, edgeRec * pt1, edgeRec * pt2, DATA8 r, DATA8 g,
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DATA8 b, DATA8 a, ImlibOp op)
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DATA8 b, DATA8 a, ImlibOp op)
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{
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{
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int idx, ix1, ix2;
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int ix1, ix2;
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DATA32 *p;
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int tmp;
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if (pt2->x < pt1->x)
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{
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exchange(edgeRec *, pt1, pt2);
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}
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ix1 = pt1->x;
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ix1 = pt1->x;
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ix2 = pt2->x;
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ix2 = pt2->x;
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idx = ix2 - ix1;
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if (ix1 == ix2)
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if (idx == 0)
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{
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{
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return;
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return;
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}
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}
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do
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do
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{
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{
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__imlib_draw_set_point(im, ix1, y, r, g, b, a, op);
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p = &(im->data[(im->w * y) + ix1]);
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switch (op)
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{
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case OP_RESHADE:
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BLEND_RE(r, g, b, a, p);
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break;
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case OP_SUBTRACT:
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BLEND_SUB(r, g, b, a, p);
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break;
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case OP_ADD:
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BLEND_ADD(r, g, b, a, p);
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break;
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case OP_COPY:
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BLEND(r, g, b, a, p);
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break;
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default:
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break;
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}
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ix1++;
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ix1++;
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}
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}
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while (ix1 < ix2);
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while (ix1 < ix2);
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}
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}
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static void
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span_clipped(ImlibImage * im, int y, edgeRec * pt1, edgeRec * pt2,
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int clip_xmin, int clip_xmax, int clip_ymin, int clip_ymax,
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DATA8 r, DATA8 g, DATA8 b, DATA8 a, ImlibOp op)
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{
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int idx, ix1, ix2;
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if (pt2->x < pt1->x)
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{
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exchange(edgeRec *, pt1, pt2);
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}
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ix1 = pt1->x;
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ix2 = pt2->x;
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idx = ix2 - ix1;
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if (idx == 0)
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return;
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/* clip x, y is clipped for us by the caller */
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if (ix1 < clip_xmin)
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ix1 = clip_xmin;
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if (ix2 > clip_xmax)
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ix2 = clip_xmax;
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do
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{
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__imlib_draw_set_point(im, ix1, y, r, g, b, a, op);
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ix1++;
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}
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while (ix1 < ix2);
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}
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void
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void
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__imlib_draw_polygon_filled(ImlibImage * im, ImlibPoly poly, int clip_xmin,
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__imlib_draw_polygon_filled(ImlibImage * im, ImlibPoly poly, int clip_xmin,
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int clip_xmax, int clip_ymin, int clip_ymax,
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int clip_xmax, int clip_ymin, int clip_ymax,
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}
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}
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while (pnt1 != iminy);
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while (pnt1 != iminy);
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/* clip spans to screen */
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__spanlist_clip(table1, table2, &iy1, &iy2, 0, im->w, 0, im->h);
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/* clip to clip rect if it's there */
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if (clip_xmin != clip_xmax)
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if (clip_xmin != clip_xmax)
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__spanlist_clip(table1, table2, &iy1, &iy2, clip_xmin, clip_xmax,
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clip_ymin, clip_ymax);
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do
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{
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{
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/* there is a cliprect, don't bother with y outside of it */
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/* fill spans */
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if (iy1 < clip_ymin)
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span(im, iy1, &table1[iy1], &table2[iy1], r, g, b, a, op);
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iy1 = clip_ymin;
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iy1++;
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if (iy2 > clip_ymax)
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iy2 = clip_ymax;
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do
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{
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span_clipped(im, iy1, &table1[iy1], &table2[iy1], clip_xmin,
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clip_xmax, clip_ymin, clip_ymax, r, g, b, a, op);
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iy1++;
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}
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while (iy1 < iy2);
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}
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else
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{
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do
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{
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span(im, iy1, &table1[iy1], &table2[iy1], r, g, b, a, op);
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iy1++;
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}
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while (iy1 < iy2);
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}
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}
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while (iy1 < iy2);
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free(table1);
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free(table1);
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free(table2);
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free(table2);
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}
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}
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void
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__spanlist_clip(edgeRec * table1, edgeRec * table2, int *sy, int *ey,
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int xmin, int xmax, int ymin, int ymax)
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{
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edgeRec *pt1, *pt2;
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int iy1, iy2;
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iy1 = MAX(*sy, ymin);
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iy2 = MIN(*ey, ymax);
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*sy = iy1;
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*ey = iy2;
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do
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{
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pt1 = &(table1)[iy1];
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pt2 = &(table2)[iy1];
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if (pt2->x < pt1->x)
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SWAP(pt2->x, pt1->x);
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pt1->x = MAX(pt1->x, xmin);
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pt2->x = MIN(pt2->x, xmax);
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iy1++;
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}
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while (iy1 < iy2);
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}
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unsigned char
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unsigned char
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__imlib_polygon_contains_point(ImlibPoly poly, int x, int y)
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__imlib_polygon_contains_point(ImlibPoly poly, int x, int y)
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@ -2307,24 +2292,6 @@ __imlib_segments_intersect(int r1_x, int r1_y, int r2_x, int r2_y, int s1_x,
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return FALSE;
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return FALSE;
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}
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}
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/* TODO this could prolly be a macro */
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unsigned char
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__imlib_point_inside_segment(int p_x, int p_y, int s1_x, int s1_y, int s2_x,
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int s2_y)
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{
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/* Check if p lies on segment [ s1, s2 ] given that
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it lies on the line defined by s1 and s2. */
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if (s1_y != s2_y)
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{
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if (p_y <= MAX(s1_y, s2_y) && p_y >= MIN(s1_y, s2_y))
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return TRUE;
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}
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else if (p_x <= MAX(s1_x, s2_x) && p_x >= MIN(s1_x, s2_x))
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return TRUE;
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return FALSE;
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}
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double
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double
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__imlib_point_delta_from_line(int p_x, int p_y, int s1_x, int s1_y, int s2_x,
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__imlib_point_delta_from_line(int p_x, int p_y, int s1_x, int s1_y, int s2_x,
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int s2_y)
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int s2_y)
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185
src/rgbadraw.h
185
src/rgbadraw.h
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@ -14,26 +14,46 @@
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\
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\
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if (y > py2) \
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if (y > py2) \
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py2 = y; \
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py2 = y; \
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}
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}
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#define exchange(type, a, b) \
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{ \
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type _t_; \
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_t_ = a; \
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a = b; \
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b = _t_; \
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}
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typedef struct _imlib_point ImlibPoint;
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/* Check if p lies on segment [ s1, s2 ] given that
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it lies on the line defined by s1 and s2. */
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#define __imlib_point_inside_segment(p_x, p_y, s1_x, s1_y, s2_x,s2_y) \
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(s1_y != s2_y) ? (p_y <= MAX(s1_y, s2_y) && p_y >= MIN(s1_y, s2_y)) : (p_x <= MAX(s1_x, s2_x) && p_x >= MIN(s1_x, s2_x))
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#define SWAP(a,b) {int _tmp_; _tmp_ = a; a = b; b = _tmp_;}
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typedef struct _edgerec
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{
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int x;
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}
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edgeRec;
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typedef struct _imlib_point ImlibPoint;
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struct _imlib_point
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struct _imlib_point
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{
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{
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int x,y;
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int x, y;
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};
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};
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typedef struct _imlib_rectangle Imlib_Rectangle;
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typedef struct _imlib_rectangle Imlib_Rectangle;
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struct _imlib_rectangle
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struct _imlib_rectangle
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{
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{
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int x,y,w,h;
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int x, y, w, h;
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};
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};
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typedef struct _imlib_polygon _ImlibPoly;
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typedef struct _imlib_polygon _ImlibPoly;
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typedef _ImlibPoly * ImlibPoly;
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typedef _ImlibPoly *ImlibPoly;
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struct _imlib_polygon
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struct _imlib_polygon
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{
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{
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@ -48,83 +68,88 @@ ImlibPoly __imlib_polygon_new(void);
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typedef unsigned int ImlibOutCode;
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typedef unsigned int ImlibOutCode;
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enum
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enum
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{ TOP = 0x1, BOTTOM = 0x2, RIGHT = 0x4, LEFT = 0x8 };
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{ TOP = 0x1, BOTTOM = 0x2, RIGHT = 0x4, LEFT = 0x8 };
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#define TRUE 1
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#define TRUE 1
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#define FALSE 0
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#define FALSE 0
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void __imlib_FlipImageHoriz(ImlibImage *im);
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void __imlib_FlipImageHoriz(ImlibImage * im);
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void __imlib_FlipImageVert(ImlibImage *im);
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void __imlib_FlipImageVert(ImlibImage * im);
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void __imlib_FlipImageBoth(ImlibImage *im);
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void __imlib_FlipImageBoth(ImlibImage * im);
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void __imlib_FlipImageDiagonal(ImlibImage *im, int direction);
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void __imlib_FlipImageDiagonal(ImlibImage * im, int direction);
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void __imlib_BlurImage(ImlibImage *im, int rad);
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void __imlib_BlurImage(ImlibImage * im, int rad);
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void __imlib_SharpenImage(ImlibImage *im, int rad);
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void __imlib_SharpenImage(ImlibImage * im, int rad);
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void __imlib_TileImageHoriz(ImlibImage *im);
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void __imlib_TileImageHoriz(ImlibImage * im);
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void __imlib_TileImageVert(ImlibImage *im);
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void __imlib_TileImageVert(ImlibImage * im);
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ImlibUpdate * __imlib_draw_line(ImlibImage *im, int x1, int y1, int x2, int y2, DATA8 r, DATA8 g, DATA8 b, DATA8 a, ImlibOp op, char make_updates);
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ImlibUpdate *__imlib_draw_line(ImlibImage * im, int x1, int y1, int x2,
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void __imlib_draw_box(ImlibImage *im, int x, int y, int w, int h, DATA8 r, DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
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int y2, DATA8 r, DATA8 g, DATA8 b, DATA8 a,
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void __imlib_draw_filled_box(ImlibImage *im, int x, int y, int w, int h, DATA8 r, DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
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ImlibOp op, char make_updates);
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void __imlib_draw_filled_box(ImlibImage *im, int x, int y, int w, int h, DATA8 r, DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
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void __imlib_draw_box(ImlibImage * im, int x, int y, int w, int h, DATA8 r,
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void __imlib_copy_image_data(ImlibImage *im, int x, int y, int w, int h, int nx, int ny);
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DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
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void __imlib_copy_alpha_data(ImlibImage *src, ImlibImage *dst, int x, int y, int w, int h, int nx, int ny);
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void __imlib_draw_filled_box(ImlibImage * im, int x, int y, int w, int h,
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ImlibOutCode __imlib_comp_outcode(double x, double y, double xmin, double xmax,
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DATA8 r, DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
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double ymin, double ymax);
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void __imlib_draw_filled_box(ImlibImage * im, int x, int y, int w, int h,
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void
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DATA8 r, DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
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__imlib_draw_polygon(ImlibImage * im, ImlibPoly poly, unsigned char closed, DATA8 r, DATA8 g,
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void __imlib_copy_image_data(ImlibImage * im, int x, int y, int w, int h,
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DATA8 b, DATA8 a, ImlibOp op);
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int nx, int ny);
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ImlibUpdate *
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void __imlib_copy_alpha_data(ImlibImage * src, ImlibImage * dst, int x, int y,
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__imlib_draw_line_clipped(ImlibImage * im, int x1, int y1, int x2, int y2,
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int w, int h, int nx, int ny);
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int clip_xmin, int clip_xmax, int clip_ymin,
|
ImlibOutCode __imlib_comp_outcode(double x, double y, double xmin,
|
||||||
int clip_ymax, DATA8 r, DATA8 g, DATA8 b, DATA8 a,
|
double xmax, double ymin, double ymax);
|
||||||
ImlibOp op, char make_updates);
|
void __imlib_draw_polygon(ImlibImage * im, ImlibPoly poly,
|
||||||
void
|
unsigned char closed, DATA8 r, DATA8 g, DATA8 b,
|
||||||
__imlib_draw_box_clipped(ImlibImage * im, int x, int y, int w, int h,
|
DATA8 a, ImlibOp op);
|
||||||
int clip_xmin, int clip_xmax, int clip_ymin,
|
ImlibUpdate *__imlib_draw_line_clipped(ImlibImage * im, int x1, int y1,
|
||||||
int clip_ymax, DATA8 r, DATA8 g, DATA8 b, DATA8 a,
|
int x2, int y2, int clip_xmin,
|
||||||
ImlibOp op);
|
int clip_xmax, int clip_ymin,
|
||||||
void
|
int clip_ymax, DATA8 r, DATA8 g,
|
||||||
__imlib_draw_polygon_clipped(ImlibImage * im, ImlibPoly poly, unsigned char closed, int clip_xmin,
|
DATA8 b, DATA8 a, ImlibOp op,
|
||||||
int clip_xmax, int clip_ymin, int clip_ymax, DATA8 r, DATA8 g, DATA8 b,
|
|
||||||
DATA8 a, ImlibOp op);
|
char make_updates);
|
||||||
void __imlib_polygon_get_bounds(ImlibPoly poly, int *px1, int *py1, int *px2, int *py2);
|
void __imlib_draw_box_clipped(ImlibImage * im, int x, int y, int w, int h,
|
||||||
void
|
int clip_xmin, int clip_xmax, int clip_ymin,
|
||||||
__imlib_draw_set_point(ImlibImage * im, int x, int y, DATA8 r, DATA8 g,
|
int clip_ymax, DATA8 r, DATA8 g, DATA8 b,
|
||||||
DATA8 b, DATA8 a, ImlibOp op);
|
DATA8 a, ImlibOp op);
|
||||||
void
|
void __imlib_draw_polygon_clipped(ImlibImage * im, ImlibPoly poly,
|
||||||
__imlib_draw_set_point_clipped(ImlibImage * im, int x, int y, int clip_xmin,
|
unsigned char closed, int clip_xmin,
|
||||||
int clip_xmax, int clip_ymin, int clip_ymax,
|
int clip_xmax, int clip_ymin, int clip_ymax,
|
||||||
DATA8 r, DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
|
DATA8 r, DATA8 g, DATA8 b, DATA8 a,
|
||||||
void
|
|
||||||
__imlib_draw_ellipse(ImlibImage * im, int xc, int yc, int aa, int bb, DATA8 r,
|
ImlibOp op);
|
||||||
DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
|
void __imlib_polygon_get_bounds(ImlibPoly poly, int *px1, int *py1, int *px2,
|
||||||
void
|
|
||||||
__imlib_draw_ellipse_clipped(ImlibImage * im, int xc, int yc, int aa, int bb,
|
int *py2);
|
||||||
int clip_xmin, int clip_xmax, int clip_ymin,
|
void __imlib_draw_set_point(ImlibImage * im, int x, int y, DATA8 r, DATA8 g,
|
||||||
int clip_ymax, DATA8 r, DATA8 g, DATA8 b,
|
DATA8 b, DATA8 a, ImlibOp op);
|
||||||
DATA8 a, ImlibOp op);
|
void __imlib_draw_set_point_clipped(ImlibImage * im, int x, int y,
|
||||||
void
|
|
||||||
__imlib_draw_polygon_filled(ImlibImage * im, ImlibPoly poly,
|
|
||||||
int clip_xmin, int clip_xmax,
|
int clip_xmin, int clip_xmax,
|
||||||
int clip_ymin, int clip_ymax, DATA8 r,
|
int clip_ymin, int clip_ymax, DATA8 r,
|
||||||
DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
|
DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
|
||||||
void
|
void __imlib_draw_ellipse(ImlibImage * im, int xc, int yc, int aa, int bb,
|
||||||
__imlib_fill_ellipse(ImlibImage * im, int xc, int yc, int aa, int bb, DATA8 r,
|
DATA8 r, DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
|
||||||
DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
|
void __imlib_draw_ellipse_clipped(ImlibImage * im, int xc, int yc, int aa,
|
||||||
void
|
int bb, int clip_xmin, int clip_xmax,
|
||||||
__imlib_fill_ellipse_clipped(ImlibImage * im, int xc, int yc, int aa, int bb,
|
int clip_ymin, int clip_ymax, DATA8 r,
|
||||||
int clip_xmin, int clip_xmax, int clip_ymin,
|
DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
|
||||||
int clip_ymax, DATA8 r, DATA8 g, DATA8 b,
|
void __imlib_draw_polygon_filled(ImlibImage * im, ImlibPoly poly,
|
||||||
DATA8 a, ImlibOp op);
|
int clip_xmin, int clip_xmax, int clip_ymin,
|
||||||
unsigned char
|
int clip_ymax, DATA8 r, DATA8 g, DATA8 b,
|
||||||
__imlib_polygon_contains_point(ImlibPoly poly, int x, int y);
|
DATA8 a, ImlibOp op);
|
||||||
unsigned char
|
void __imlib_fill_ellipse(ImlibImage * im, int xc, int yc, int aa, int bb,
|
||||||
__imlib_point_on_segment(int p_x, int p_y, int s1_x, int s1_y, int s2_x,
|
DATA8 r, DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
|
||||||
int s2_y);
|
void __imlib_fill_ellipse_clipped(ImlibImage * im, int xc, int yc, int aa,
|
||||||
unsigned char
|
int bb, int clip_xmin, int clip_xmax,
|
||||||
__imlib_segments_intersect(int r1_x, int r1_y, int r2_x, int r2_y, int s1_x,
|
int clip_ymin, int clip_ymax, DATA8 r,
|
||||||
int s1_y, int s2_x, int s2_y);
|
DATA8 g, DATA8 b, DATA8 a, ImlibOp op);
|
||||||
unsigned char
|
unsigned char __imlib_polygon_contains_point(ImlibPoly poly, int x, int y);
|
||||||
__imlib_point_inside_segment(int p_x, int p_y, int s1_x, int s1_y, int s2_x,
|
unsigned char __imlib_point_on_segment(int p_x, int p_y, int s1_x, int s1_y,
|
||||||
int s2_y);
|
|
||||||
double
|
int s2_x, int s2_y);
|
||||||
__imlib_point_delta_from_line(int p_x, int p_y, int s1_x, int s1_y, int s2_x,
|
unsigned char __imlib_segments_intersect(int r1_x, int r1_y, int r2_x,
|
||||||
int s2_y);
|
int r2_y, int s1_x, int s1_y,
|
||||||
|
int s2_x, int s2_y);
|
||||||
|
double __imlib_point_delta_from_line(int p_x, int p_y, int s1_x, int s1_y,
|
||||||
|
|
||||||
|
int s2_x, int s2_y);
|
||||||
|
void __spanlist_clip(edgeRec * table1, edgeRec * table2, int *sy, int *ey,
|
||||||
|
int xmin, int xmax, int ymin, int ymax);
|
||||||
#endif
|
#endif
|
||||||
|
|
Loading…
Reference in New Issue