drivers/video/stb_truetype.h

588 STBTT_DEF int  stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int width, int height, int stride_in_bytes, int padding, void *alloc_context);
599 STBTT_DEF void stbtt_PackEnd  (stbtt_pack_context *spc);
604 STBTT_DEF int  stbtt_PackFontRange(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, float font_size,
629 STBTT_DEF int  stbtt_PackFontRanges(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, stbtt_pack_range *ranges, int num_ranges);
635 STBTT_DEF void stbtt_PackSetOversampling(stbtt_pack_context *spc, unsigned int h_oversample, unsigned int v_oversample);
651 STBTT_DEF void stbtt_PackSetSkipMissingCodepoints(stbtt_pack_context *spc, int skip);
663 STBTT_DEF int  stbtt_PackFontRangesGatherRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects);
664 STBTT_DEF void stbtt_PackFontRangesPackRects(stbtt_pack_context *spc, stbrp_rect *rects, int num_rects);
665 STBTT_DEF int  stbtt_PackFontRangesRenderIntoRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects);
3957 STBTT_DEF int stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int pw, int ph, int stride_in_bytes, int padding, void *alloc_context)
3969    spc->user_allocator_context = alloc_context;
3970    spc->width = pw;
3971    spc->height = ph;
3972    spc->pixels = pixels;
3973    spc->pack_info = context;
3974    spc->nodes = nodes;
3975    spc->padding = padding;
3976    spc->stride_in_bytes = stride_in_bytes != 0 ? stride_in_bytes : pw;
3977    spc->h_oversample = 1;
3978    spc->v_oversample = 1;
3979    spc->skip_missing = 0;
3989 STBTT_DEF void stbtt_PackEnd  (stbtt_pack_context *spc)
3991    STBTT_free(spc->nodes    , spc->user_allocator_context);
3992    STBTT_free(spc->pack_info, spc->user_allocator_context);
3995 STBTT_DEF void stbtt_PackSetOversampling(stbtt_pack_context *spc, unsigned int h_oversample, unsigned int v_oversample)
4000       spc->h_oversample = h_oversample;
4002       spc->v_oversample = v_oversample;
4005 STBTT_DEF void stbtt_PackSetSkipMissingCodepoints(stbtt_pack_context *spc, int skip)
4007    spc->skip_missing = skip;
4149 STBTT_DEF int stbtt_PackFontRangesGatherRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects)
4158       ranges[i].h_oversample = (unsigned char) spc->h_oversample;
4159       ranges[i].v_oversample = (unsigned char) spc->v_oversample;
4164          if (glyph == 0 && (spc->skip_missing || missing_glyph_added)) {
4168                                             scale * spc->h_oversample,
4169                                             scale * spc->v_oversample,
4172             rects[k].w = (stbrp_coord) (x1-x0 + spc->padding + spc->h_oversample-1);
4173             rects[k].h = (stbrp_coord) (y1-y0 + spc->padding + spc->v_oversample-1);
4208 STBTT_DEF int stbtt_PackFontRangesRenderIntoRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects)
4213    int old_h_over = spc->h_oversample;
4214    int old_v_over = spc->v_oversample;
4221       spc->h_oversample = ranges[i].h_oversample;
4222       spc->v_oversample = ranges[i].v_oversample;
4223       recip_h = 1.0f / spc->h_oversample;
4224       recip_v = 1.0f / spc->v_oversample;
4225       sub_x = stbtt__oversample_shift(spc->h_oversample);
4226       sub_y = stbtt__oversample_shift(spc->v_oversample);
4234             stbrp_coord pad = (stbrp_coord) spc->padding;
4243                                     scale * spc->h_oversample,
4244                                     scale * spc->v_oversample,
4247                                           spc->pixels + r->x + r->y*spc->stride_in_bytes,
4248                                           r->w - spc->h_oversample+1,
4249                                           r->h - spc->v_oversample+1,
4250                                           spc->stride_in_bytes,
4251                                           scale * spc->h_oversample,
4252                                           scale * spc->v_oversample,
4256             if (spc->h_oversample > 1)
4257                stbtt__h_prefilter(spc->pixels + r->x + r->y*spc->stride_in_bytes,
4258                                   r->w, r->h, spc->stride_in_bytes,
4259                                   spc->h_oversample);
4261             if (spc->v_oversample > 1)
4262                stbtt__v_prefilter(spc->pixels + r->x + r->y*spc->stride_in_bytes,
4263                                   r->w, r->h, spc->stride_in_bytes,
4264                                   spc->v_oversample);
4278          } else if (spc->skip_missing) {
4291    spc->h_oversample = old_h_over;
4292    spc->v_oversample = old_v_over;
4297 STBTT_DEF void stbtt_PackFontRangesPackRects(stbtt_pack_context *spc, stbrp_rect *rects, int num_rects)
4299    stbrp_pack_rects((stbrp_context *) spc->pack_info, rects, num_rects);
4302 STBTT_DEF int stbtt_PackFontRanges(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, stbtt_pack_range *ranges, int num_ranges)
4306    //stbrp_context *context = (stbrp_context *) spc->pack_info;
4321    rects = (stbrp_rect *) STBTT_malloc(sizeof(*rects) * n, spc->user_allocator_context);
4325    info.userdata = spc->user_allocator_context;
4328    n = stbtt_PackFontRangesGatherRects(spc, &info, ranges, num_ranges, rects);
4330    stbtt_PackFontRangesPackRects(spc, rects, n);
4332    return_value = stbtt_PackFontRangesRenderIntoRects(spc, &info, ranges, num_ranges, rects);
4334    STBTT_free(rects, spc->user_allocator_context);
4338 STBTT_DEF int stbtt_PackFontRange(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, float font_size,
4347    return stbtt_PackFontRanges(spc, fontdata, font_index, &range, 1);