Mercurial > MadButterfly
diff src/graph_engine_openvg.c @ 588:e9923024f65e openvg
Implement mbe_scissoring() for OpenVG
| author | Thinker K.F. Li <thinker@branda.to> |
|---|---|
| date | Wed, 30 Jun 2010 17:45:30 +0800 |
| parents | 543a2a8523fb |
| children | d733e198bb25 |
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--- a/src/graph_engine_openvg.c Wed Jun 30 17:27:46 2010 +0800 +++ b/src/graph_engine_openvg.c Wed Jun 30 17:45:30 2010 +0800 @@ -2,3 +2,32 @@ EGLNativeDisplayType _ge_openvg_disp_id = EGL_DEFAULT_DISPLAY; mbe_t *_ge_openvg_current_canvas = NULL; + +void +mbe_scissoring(mbe_t *canvas, int n_areas, area_t **areas) { + static VGint *coords = NULL; + static int coords_sz = 0; + VGint *coord; + area_t *area; + int i; + + _MK_CURRENT_CTX(canvas); + + if(n_areas > coords_sz) { + if(coords) free(coords); + coords_sz = (n_areas + 0xf) & 0xf; + coords = (VGint *)malloc(sizeof(VGint) * coords_sz * 4); + ASSERT(coords != NULL); + } + + coord = coords; + for(i = 0; i < n_areas; i++) { + area = areas[i]; + *coord++ = area->x; + *coord++ = area->y; + *coord++ = area->w; + *coord++ = area->h; + } + + vgSetiv(VG_SCISSOR_RECTS, n_areas * 4, coords); +}