diff options
Diffstat (limited to 'source/blender/blenfont')
| -rw-r--r-- | source/blender/blenfont/intern/blf.c | 1 | ||||
| -rw-r--r-- | source/blender/blenfont/intern/blf_font.c | 671 | ||||
| -rw-r--r-- | source/blender/blenfont/intern/blf_glyph.c | 50 | ||||
| -rw-r--r-- | source/blender/blenfont/intern/blf_internal.h | 4 | ||||
| -rw-r--r-- | source/blender/blenfont/intern/blf_internal_types.h | 9 |
5 files changed, 378 insertions, 357 deletions
diff --git a/source/blender/blenfont/intern/blf.c b/source/blender/blenfont/intern/blf.c index 9168e7aa19c..2f9eb0753ac 100644 --- a/source/blender/blenfont/intern/blf.c +++ b/source/blender/blenfont/intern/blf.c @@ -108,7 +108,6 @@ void BLF_cache_clear(void) FontBLF *font = global_font[i]; if (font) { blf_glyph_cache_clear(font); - blf_kerning_cache_clear(font); } } } diff --git a/source/blender/blenfont/intern/blf_font.c b/source/blender/blenfont/intern/blf_font.c index 00d3cfb09eb..75a2e893119 100644 --- a/source/blender/blenfont/intern/blf_font.c +++ b/source/blender/blenfont/intern/blf_font.c @@ -72,6 +72,38 @@ static SpinLock ft_lib_mutex; static SpinLock blf_glyph_cache_mutex; /* -------------------------------------------------------------------- */ +/** \name FreeType Utilities (Internal) + * \{ */ + +/** + * Convert a FreeType 26.6 value representing an unscaled design size to pixels. + * This is an exact copy of the scaling done inside FT_Get_Kerning when called + * with #FT_KERNING_DEFAULT, including arbitrary resizing for small fonts. + */ +static int blf_unscaled_F26Dot6_to_pixels(FontBLF *font, FT_Pos value) +{ + /* Scale value by font size using integer-optimized multiplication. */ + FT_Long scaled = FT_MulFix(value, font->face->size->metrics.x_scale); + + /* FreeType states that this '25' has been determined heuristically. */ + if (font->face->size->metrics.x_ppem < 25) { + scaled = FT_MulDiv(scaled, font->face->size->metrics.x_ppem, 25); + } + + /* Copies of internal FreeType macros needed here. */ +#define FT_PIX_FLOOR(x) ((x) & ~63) +#define FT_PIX_ROUND(x) FT_PIX_FLOOR((x) + 32) + + /* Round to even 64ths, then divide by 64. */ + return (int)FT_PIX_ROUND(scaled) >> 6; + +#undef FT_PIX_FLOOR +#undef FT_PIX_ROUND +} + +/** \} */ + +/* -------------------------------------------------------------------- */ /** \name Glyph Batching * \{ */ @@ -257,67 +289,8 @@ static void blf_batch_draw_end(void) /** \} */ /* -------------------------------------------------------------------- */ - -int blf_font_init(void) -{ - memset(&g_batch, 0, sizeof(g_batch)); - BLI_spin_init(&ft_lib_mutex); - BLI_spin_init(&blf_glyph_cache_mutex); - return FT_Init_FreeType(&ft_lib); -} - -void blf_font_exit(void) -{ - FT_Done_FreeType(ft_lib); - BLI_spin_end(&ft_lib_mutex); - BLI_spin_end(&blf_glyph_cache_mutex); - blf_batch_draw_exit(); -} - -void blf_font_size(FontBLF *font, unsigned int size, unsigned int dpi) -{ - GlyphCacheBLF *gc; - FT_Error err; - - blf_glyph_cache_acquire(font); - - gc = blf_glyph_cache_find(font, size, dpi); - if (gc) { - /* Optimization: do not call FT_Set_Char_Size if size did not change. */ - if (font->size == size && font->dpi == dpi) { - blf_glyph_cache_release(font); - return; - } - } - - err = FT_Set_Char_Size(font->face, 0, ((FT_F26Dot6)(size)) * 64, dpi, dpi); - if (err) { - /* FIXME: here we can go through the fixed size and choice a close one */ - printf("The current font don't support the size, %u and dpi, %u\n", size, dpi); - - blf_glyph_cache_release(font); - return; - } - - font->size = size; - font->dpi = dpi; - - if (!gc) { - blf_glyph_cache_new(font); - } - blf_glyph_cache_release(font); -} - -static void blf_font_ensure_ascii_kerning(FontBLF *font, GlyphCacheBLF *gc) -{ - if (font->kerning_cache || !FT_HAS_KERNING(font->face)) { - return; - } - font->kerning_cache = blf_kerning_cache_find(font); - if (!font->kerning_cache) { - font->kerning_cache = blf_kerning_cache_new(font, gc); - } -} +/** \name Glyph Stepping Utilities (Internal) + * \{ */ /* Fast path for runs of ASCII characters. Given that common UTF-8 * input will consist of an overwhelming majority of ASCII @@ -355,22 +328,40 @@ BLI_INLINE void blf_kerning_step_fast(FontBLF *font, const uint c, int *pen_x_p) { - /* `blf_font_ensure_ascii_kerning(font, gc);` must be called before this function. */ - BLI_assert(font->kerning_cache != NULL || !FT_HAS_KERNING(font->face)); + if (!FT_HAS_KERNING(font->face) || g_prev == NULL) { + return; + } - if (g_prev != NULL && FT_HAS_KERNING(font->face)) { - if ((c_prev < KERNING_CACHE_TABLE_SIZE) && (c < GLYPH_ASCII_TABLE_SIZE)) { - *pen_x_p += font->kerning_cache->ascii_table[c][c_prev]; - } - else { - FT_Vector delta; - if (FT_Get_Kerning(font->face, g_prev->idx, g->idx, FT_KERNING_DEFAULT, &delta) == 0) { - *pen_x_p += (int)delta.x >> 6; - } - } + FT_Vector delta = {KERNING_ENTRY_UNSET}; + + /* Get unscaled kerning value from our cache if ASCII. */ + if ((c_prev < KERNING_CACHE_TABLE_SIZE) && (c < GLYPH_ASCII_TABLE_SIZE)) { + delta.x = font->kerning_cache->ascii_table[c][c_prev]; + } + + /* If not ASCII or not found in cache, ask FreeType for kerning. */ + if (UNLIKELY(delta.x == KERNING_ENTRY_UNSET)) { + /* Note that this function sets delta values to zero on any error. */ + FT_Get_Kerning(font->face, g_prev->idx, g->idx, FT_KERNING_UNSCALED, &delta); + } + + /* If ASCII we save this value to our cache for quicker access next time. */ + if ((c_prev < KERNING_CACHE_TABLE_SIZE) && (c < GLYPH_ASCII_TABLE_SIZE)) { + font->kerning_cache->ascii_table[c][c_prev] = (int)delta.x; + } + + if (delta.x != 0) { + /* Convert unscaled design units to pixels and move pen. */ + *pen_x_p += blf_unscaled_F26Dot6_to_pixels(font, delta.x); } } +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Text Drawing: GPU + * \{ */ + static void blf_font_draw_ex(FontBLF *font, GlyphCacheBLF *gc, const char *str, @@ -388,8 +379,6 @@ static void blf_font_draw_ex(FontBLF *font, return; } - blf_font_ensure_ascii_kerning(font, gc); - blf_batch_draw_begin(font); while ((i < len) && str[i]) { @@ -435,8 +424,6 @@ static void blf_font_draw_ascii_ex( GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); - blf_font_ensure_ascii_kerning(font, gc); - blf_batch_draw_begin(font); while ((c = *(str++)) && len--) { @@ -515,6 +502,12 @@ int blf_font_draw_mono(FontBLF *font, const char *str, size_t len, int cwidth) return columns; } +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Text Drawgin: Buffer + * \{ */ + /* Sanity checks are done by BLF_draw_buffer() */ static void blf_font_draw_buffer_ex(FontBLF *font, GlyphCacheBLF *gc, @@ -536,8 +529,6 @@ static void blf_font_draw_buffer_ex(FontBLF *font, int chx, chy; int y, x; - blf_font_ensure_ascii_kerning(font, gc); - /* another buffer specific call for color conversion */ while ((i < len) && str[i]) { @@ -662,6 +653,16 @@ void blf_font_draw_buffer(FontBLF *font, const char *str, size_t len, struct Res blf_glyph_cache_release(font); } +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Text Evaluation: Width to Sting Length + * + * Use to implement exported functions: + * - #BLF_width_to_strlen + * - #BLF_width_to_rstrlen + * \{ */ + static bool blf_font_width_to_strlen_glyph_process(FontBLF *font, const uint c_prev, const uint c, @@ -694,8 +695,6 @@ size_t blf_font_width_to_strlen( GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); const int width_i = (int)width; - blf_font_ensure_ascii_kerning(font, gc); - for (i_prev = i = 0, width_new = pen_x = 0, g_prev = NULL, c_prev = 0; (i < len) && str[i]; i_prev = i, width_new = pen_x, c_prev = c, g_prev = g) { g = blf_utf8_next_fast(font, gc, str, &i, &c); @@ -725,8 +724,6 @@ size_t blf_font_width_to_rstrlen( GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); const int width_i = (int)width; - blf_font_ensure_ascii_kerning(font, gc); - i = BLI_strnlen(str, len); s = BLI_str_find_prev_char_utf8(str, &str[i]); i = (size_t)((s != NULL) ? s - str : 0); @@ -759,6 +756,12 @@ size_t blf_font_width_to_rstrlen( return i; } +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Text Evaluation: Glyph Bound Box with Callback + * \{ */ + static void blf_font_boundbox_ex(FontBLF *font, GlyphCacheBLF *gc, const char *str, @@ -778,8 +781,6 @@ static void blf_font_boundbox_ex(FontBLF *font, box->ymin = 32000.0f; box->ymax = -32000.0f; - blf_font_ensure_ascii_kerning(font, gc); - while ((i < len) && str[i]) { g = blf_utf8_next_fast(font, gc, str, &i, &c); @@ -835,8 +836,165 @@ void blf_font_boundbox( blf_glyph_cache_release(font); } +void blf_font_width_and_height(FontBLF *font, + const char *str, + size_t len, + float *r_width, + float *r_height, + struct ResultBLF *r_info) +{ + float xa, ya; + rctf box; + + if (font->flags & BLF_ASPECT) { + xa = font->aspect[0]; + ya = font->aspect[1]; + } + else { + xa = 1.0f; + ya = 1.0f; + } + + if (font->flags & BLF_WORD_WRAP) { + blf_font_boundbox__wrap(font, str, len, &box, r_info); + } + else { + blf_font_boundbox(font, str, len, &box, r_info); + } + *r_width = (BLI_rctf_size_x(&box) * xa); + *r_height = (BLI_rctf_size_y(&box) * ya); +} + +float blf_font_width(FontBLF *font, const char *str, size_t len, struct ResultBLF *r_info) +{ + float xa; + rctf box; + + if (font->flags & BLF_ASPECT) { + xa = font->aspect[0]; + } + else { + xa = 1.0f; + } + + if (font->flags & BLF_WORD_WRAP) { + blf_font_boundbox__wrap(font, str, len, &box, r_info); + } + else { + blf_font_boundbox(font, str, len, &box, r_info); + } + return BLI_rctf_size_x(&box) * xa; +} + +float blf_font_height(FontBLF *font, const char *str, size_t len, struct ResultBLF *r_info) +{ + float ya; + rctf box; + + if (font->flags & BLF_ASPECT) { + ya = font->aspect[1]; + } + else { + ya = 1.0f; + } + + if (font->flags & BLF_WORD_WRAP) { + blf_font_boundbox__wrap(font, str, len, &box, r_info); + } + else { + blf_font_boundbox(font, str, len, &box, r_info); + } + return BLI_rctf_size_y(&box) * ya; +} + +float blf_font_fixed_width(FontBLF *font) +{ + const unsigned int c = ' '; + + GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); + GlyphBLF *g = blf_glyph_search(gc, c); + if (!g) { + g = blf_glyph_add(font, gc, FT_Get_Char_Index(font->face, c), c); + + /* if we don't find the glyph. */ + if (!g) { + blf_glyph_cache_release(font); + return 0.0f; + } + } + + blf_glyph_cache_release(font); + return g->advance; +} + +static void blf_font_boundbox_foreach_glyph_ex(FontBLF *font, + GlyphCacheBLF *gc, + const char *str, + size_t len, + BLF_GlyphBoundsFn user_fn, + void *user_data, + struct ResultBLF *r_info, + int pen_y) +{ + unsigned int c, c_prev = BLI_UTF8_ERR; + GlyphBLF *g, *g_prev = NULL; + int pen_x = 0; + size_t i = 0, i_curr; + rcti gbox; + + if (len == 0) { + /* early output. */ + return; + } + + while ((i < len) && str[i]) { + i_curr = i; + g = blf_utf8_next_fast(font, gc, str, &i, &c); + + if (UNLIKELY(c == BLI_UTF8_ERR)) { + break; + } + if (UNLIKELY(g == NULL)) { + continue; + } + blf_kerning_step_fast(font, g_prev, g, c_prev, c, &pen_x); + + gbox.xmin = pen_x; + gbox.xmax = gbox.xmin + MIN2(g->advance_i, g->dims[0]); + gbox.ymin = pen_y; + gbox.ymax = gbox.ymin - g->dims[1]; + + pen_x += g->advance_i; + + if (user_fn(str, i_curr, &gbox, g->advance_i, &g->box, g->pos, user_data) == false) { + break; + } + + g_prev = g; + c_prev = c; + } + + if (r_info) { + r_info->lines = 1; + r_info->width = pen_x; + } +} +void blf_font_boundbox_foreach_glyph(FontBLF *font, + const char *str, + size_t len, + BLF_GlyphBoundsFn user_fn, + void *user_data, + struct ResultBLF *r_info) +{ + GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); + blf_font_boundbox_foreach_glyph_ex(font, gc, str, len, user_fn, user_data, r_info, 0); + blf_glyph_cache_release(font); +} + +/** \} */ + /* -------------------------------------------------------------------- */ -/** \name Word-Wrap Support +/** \name Text Evaluation: Word-Wrap with Callback * \{ */ /** @@ -869,8 +1027,6 @@ static void blf_font_wrap_apply(FontBLF *font, GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); - blf_font_ensure_ascii_kerning(font, gc); - struct WordWrapVars { int wrap_width; size_t start, last[2]; @@ -1008,216 +1164,120 @@ void blf_font_draw_buffer__wrap(FontBLF *font, /** \} */ -void blf_font_width_and_height(FontBLF *font, - const char *str, - size_t len, - float *r_width, - float *r_height, - struct ResultBLF *r_info) +/* -------------------------------------------------------------------- */ +/** \name Text Evaluation: Count Missing Characters + * \{ */ + +int blf_font_count_missing_chars(FontBLF *font, + const char *str, + const size_t len, + int *r_tot_chars) { - float xa, ya; - rctf box; + int missing = 0; + size_t i = 0; - if (font->flags & BLF_ASPECT) { - xa = font->aspect[0]; - ya = font->aspect[1]; - } - else { - xa = 1.0f; - ya = 1.0f; - } + *r_tot_chars = 0; + while (i < len) { + unsigned int c; - if (font->flags & BLF_WORD_WRAP) { - blf_font_boundbox__wrap(font, str, len, &box, r_info); - } - else { - blf_font_boundbox(font, str, len, &box, r_info); + if ((c = str[i]) < GLYPH_ASCII_TABLE_SIZE) { + i++; + } + else if ((c = BLI_str_utf8_as_unicode_step(str, &i)) != BLI_UTF8_ERR) { + if (FT_Get_Char_Index((font)->face, c) == 0) { + missing++; + } + } + (*r_tot_chars)++; } - *r_width = (BLI_rctf_size_x(&box) * xa); - *r_height = (BLI_rctf_size_y(&box) * ya); + return missing; } -float blf_font_width(FontBLF *font, const char *str, size_t len, struct ResultBLF *r_info) -{ - float xa; - rctf box; - - if (font->flags & BLF_ASPECT) { - xa = font->aspect[0]; - } - else { - xa = 1.0f; - } +/** \} */ - if (font->flags & BLF_WORD_WRAP) { - blf_font_boundbox__wrap(font, str, len, &box, r_info); - } - else { - blf_font_boundbox(font, str, len, &box, r_info); - } - return BLI_rctf_size_x(&box) * xa; -} +/* -------------------------------------------------------------------- */ +/** \name Font Query: Attributes + * \{ */ -float blf_font_height(FontBLF *font, const char *str, size_t len, struct ResultBLF *r_info) +int blf_font_height_max(FontBLF *font) { - float ya; - rctf box; + int height_max; - if (font->flags & BLF_ASPECT) { - ya = font->aspect[1]; - } - else { - ya = 1.0f; - } + GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); + height_max = gc->glyph_height_max; - if (font->flags & BLF_WORD_WRAP) { - blf_font_boundbox__wrap(font, str, len, &box, r_info); - } - else { - blf_font_boundbox(font, str, len, &box, r_info); - } - return BLI_rctf_size_y(&box) * ya; + blf_glyph_cache_release(font); + return height_max; } -float blf_font_fixed_width(FontBLF *font) +int blf_font_width_max(FontBLF *font) { - const unsigned int c = ' '; + int width_max; GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); - GlyphBLF *g = blf_glyph_search(gc, c); - if (!g) { - g = blf_glyph_add(font, gc, FT_Get_Char_Index(font->face, c), c); - - /* if we don't find the glyph. */ - if (!g) { - blf_glyph_cache_release(font); - return 0.0f; - } - } + width_max = gc->glyph_width_max; blf_glyph_cache_release(font); - return g->advance; + return width_max; } -/* -------------------------------------------------------------------- */ -/** \name Glyph Bound Box with Callback - * \{ */ - -static void blf_font_boundbox_foreach_glyph_ex(FontBLF *font, - GlyphCacheBLF *gc, - const char *str, - size_t len, - BLF_GlyphBoundsFn user_fn, - void *user_data, - struct ResultBLF *r_info, - int pen_y) +float blf_font_descender(FontBLF *font) { - unsigned int c, c_prev = BLI_UTF8_ERR; - GlyphBLF *g, *g_prev = NULL; - int pen_x = 0; - size_t i = 0, i_curr; - rcti gbox; - - if (len == 0) { - /* early output. */ - return; - } - - blf_font_ensure_ascii_kerning(font, gc); - - while ((i < len) && str[i]) { - i_curr = i; - g = blf_utf8_next_fast(font, gc, str, &i, &c); - - if (UNLIKELY(c == BLI_UTF8_ERR)) { - break; - } - if (UNLIKELY(g == NULL)) { - continue; - } - blf_kerning_step_fast(font, g_prev, g, c_prev, c, &pen_x); + float descender; - gbox.xmin = pen_x; - gbox.xmax = gbox.xmin + MIN2(g->advance_i, g->dims[0]); - gbox.ymin = pen_y; - gbox.ymax = gbox.ymin - g->dims[1]; + GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); + descender = gc->descender; - pen_x += g->advance_i; + blf_glyph_cache_release(font); + return descender; +} - if (user_fn(str, i_curr, &gbox, g->advance_i, &g->box, g->pos, user_data) == false) { - break; - } +float blf_font_ascender(FontBLF *font) +{ + float ascender; - g_prev = g; - c_prev = c; - } + GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); + ascender = gc->ascender; - if (r_info) { - r_info->lines = 1; - r_info->width = pen_x; - } + blf_glyph_cache_release(font); + return ascender; } -void blf_font_boundbox_foreach_glyph(FontBLF *font, - const char *str, - size_t len, - BLF_GlyphBoundsFn user_fn, - void *user_data, - struct ResultBLF *r_info) + +char *blf_display_name(FontBLF *font) { - GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); - blf_font_boundbox_foreach_glyph_ex(font, gc, str, len, user_fn, user_data, r_info, 0); - blf_glyph_cache_release(font); + if (!font->face->family_name) { + return NULL; + } + return BLI_sprintfN("%s %s", font->face->family_name, font->face->style_name); } /** \} */ -int blf_font_count_missing_chars(FontBLF *font, - const char *str, - const size_t len, - int *r_tot_chars) -{ - int missing = 0; - size_t i = 0; - - *r_tot_chars = 0; - while (i < len) { - unsigned int c; +/* -------------------------------------------------------------------- */ +/** \name Font Subsystem Init/Exit + * \{ */ - if ((c = str[i]) < GLYPH_ASCII_TABLE_SIZE) { - i++; - } - else if ((c = BLI_str_utf8_as_unicode_step(str, &i)) != BLI_UTF8_ERR) { - if (FT_Get_Char_Index((font)->face, c) == 0) { - missing++; - } - } - (*r_tot_chars)++; - } - return missing; +int blf_font_init(void) +{ + memset(&g_batch, 0, sizeof(g_batch)); + BLI_spin_init(&ft_lib_mutex); + BLI_spin_init(&blf_glyph_cache_mutex); + return FT_Init_FreeType(&ft_lib); } -void blf_font_free(FontBLF *font) +void blf_font_exit(void) { - BLI_spin_lock(&blf_glyph_cache_mutex); - GlyphCacheBLF *gc; - - while ((gc = BLI_pophead(&font->cache))) { - blf_glyph_cache_free(gc); - } - - blf_kerning_cache_clear(font); + FT_Done_FreeType(ft_lib); + BLI_spin_end(&ft_lib_mutex); + BLI_spin_end(&blf_glyph_cache_mutex); + blf_batch_draw_exit(); +} - FT_Done_Face(font->face); - if (font->filename) { - MEM_freeN(font->filename); - } - if (font->name) { - MEM_freeN(font->name); - } - MEM_freeN(font); +/** \} */ - BLI_spin_unlock(&blf_glyph_cache_mutex); -} +/* -------------------------------------------------------------------- */ +/** \name Font New/Free + * \{ */ static void blf_font_fill(FontBLF *font) { @@ -1246,7 +1306,6 @@ static void blf_font_fill(FontBLF *font) font->dpi = 0; font->size = 0; BLI_listbase_clear(&font->cache); - BLI_listbase_clear(&font->kerning_caches); font->kerning_cache = NULL; #if BLF_BLUR_ENABLE font->blur = 0; @@ -1307,6 +1366,17 @@ FontBLF *blf_font_new(const char *name, const char *filename) font->name = BLI_strdup(name); font->filename = BLI_strdup(filename); blf_font_fill(font); + + if (FT_HAS_KERNING(font->face)) { + /* Create kerning cache table and fill with value indicating "unset". */ + font->kerning_cache = MEM_mallocN(sizeof(KerningCacheBLF), __func__); + for (uint i = 0; i < KERNING_CACHE_TABLE_SIZE; i++) { + for (uint j = 0; j < KERNING_CACHE_TABLE_SIZE; j++) { + font->kerning_cache->ascii_table[i][j] = KERNING_ENTRY_UNSET; + } + } + } + return font; } @@ -1346,54 +1416,61 @@ FontBLF *blf_font_new_from_mem(const char *name, const unsigned char *mem, int m return font; } -int blf_font_height_max(FontBLF *font) +void blf_font_free(FontBLF *font) { - int height_max; - - GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); - height_max = gc->glyph_height_max; + BLI_spin_lock(&blf_glyph_cache_mutex); + GlyphCacheBLF *gc; - blf_glyph_cache_release(font); - return height_max; -} + while ((gc = BLI_pophead(&font->cache))) { + blf_glyph_cache_free(gc); + } -int blf_font_width_max(FontBLF *font) -{ - int width_max; + if (font->kerning_cache) { + MEM_freeN(font->kerning_cache); + } - GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); - width_max = gc->glyph_width_max; + FT_Done_Face(font->face); + if (font->filename) { + MEM_freeN(font->filename); + } + if (font->name) { + MEM_freeN(font->name); + } + MEM_freeN(font); - blf_glyph_cache_release(font); - return width_max; + BLI_spin_unlock(&blf_glyph_cache_mutex); } -float blf_font_descender(FontBLF *font) -{ - float descender; - - GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); - descender = gc->descender; +/** \} */ - blf_glyph_cache_release(font); - return descender; -} +/* -------------------------------------------------------------------- */ +/** \name Font Configure + * \{ */ -float blf_font_ascender(FontBLF *font) +void blf_font_size(FontBLF *font, unsigned int size, unsigned int dpi) { - float ascender; + blf_glyph_cache_acquire(font); - GlyphCacheBLF *gc = blf_glyph_cache_acquire(font); - ascender = gc->ascender; + GlyphCacheBLF *gc = blf_glyph_cache_find(font, size, dpi); + if (gc && (font->size == size && font->dpi == dpi)) { + /* Optimization: do not call FT_Set_Char_Size if size did not change. */ + } + else { + const FT_Error err = FT_Set_Char_Size(font->face, 0, ((FT_F26Dot6)(size)) * 64, dpi, dpi); + if (err) { + /* FIXME: here we can go through the fixed size and choice a close one */ + printf("The current font don't support the size, %u and dpi, %u\n", size, dpi); + } + else { + font->size = size; + font->dpi = dpi; + if (gc == NULL) { + blf_glyph_cache_new(font); + } + } + } blf_glyph_cache_release(font); - return ascender; } -char *blf_display_name(FontBLF *font) -{ - if (!font->face->family_name) { - return NULL; - } - return BLI_sprintfN("%s %s", font->face->family_name, font->face->style_name); -} +/** \} */ diff --git a/source/blender/blenfont/intern/blf_glyph.c b/source/blender/blenfont/intern/blf_glyph.c index 5fb69251466..6cdf5fc5996 100644 --- a/source/blender/blenfont/intern/blf_glyph.c +++ b/source/blender/blenfont/intern/blf_glyph.c @@ -55,56 +55,6 @@ #include "BLI_math_vector.h" #include "BLI_strict_flags.h" -KerningCacheBLF *blf_kerning_cache_find(FontBLF *font) -{ - return (KerningCacheBLF *)font->kerning_caches.first; -} - -/* Create a new glyph cache for the current kerning mode. */ -KerningCacheBLF *blf_kerning_cache_new(FontBLF *font, GlyphCacheBLF *gc) -{ - KerningCacheBLF *kc = MEM_mallocN(sizeof(KerningCacheBLF), __func__); - kc->next = NULL; - kc->prev = NULL; - - GlyphBLF *g_table[KERNING_CACHE_TABLE_SIZE]; - for (uint i = 0; i < KERNING_CACHE_TABLE_SIZE; i++) { - GlyphBLF *g = blf_glyph_search(gc, i); - if (UNLIKELY(g == NULL)) { - FT_UInt glyph_index = FT_Get_Char_Index(font->face, i); - g = blf_glyph_add(font, gc, glyph_index, i); - } - g_table[i] = g; - } - - memset(kc->ascii_table, 0, sizeof(kc->ascii_table)); - for (uint i = 0; i < KERNING_CACHE_TABLE_SIZE; i++) { - GlyphBLF *g = g_table[i]; - if (g == NULL) { - continue; - } - for (uint j = 0; j < KERNING_CACHE_TABLE_SIZE; j++) { - GlyphBLF *g_prev = g_table[j]; - if (g_prev == NULL) { - continue; - } - FT_Vector delta; - if (FT_Get_Kerning(font->face, g_prev->idx, g->idx, FT_KERNING_DEFAULT, &delta) == 0) { - kc->ascii_table[i][j] = (int)delta.x >> 6; - } - } - } - - BLI_addhead(&font->kerning_caches, kc); - return kc; -} - -void blf_kerning_cache_clear(FontBLF *font) -{ - font->kerning_cache = NULL; - BLI_freelistN(&font->kerning_caches); -} - GlyphCacheBLF *blf_glyph_cache_find(FontBLF *font, unsigned int size, unsigned int dpi) { GlyphCacheBLF *p; diff --git a/source/blender/blenfont/intern/blf_internal.h b/source/blender/blenfont/intern/blf_internal.h index 35a6d019eac..ab2a26b1e06 100644 --- a/source/blender/blenfont/intern/blf_internal.h +++ b/source/blender/blenfont/intern/blf_internal.h @@ -121,10 +121,6 @@ int blf_font_count_missing_chars(struct FontBLF *font, void blf_font_free(struct FontBLF *font); -struct KerningCacheBLF *blf_kerning_cache_find(struct FontBLF *font); -struct KerningCacheBLF *blf_kerning_cache_new(struct FontBLF *font, struct GlyphCacheBLF *gc); -void blf_kerning_cache_clear(struct FontBLF *font); - struct GlyphCacheBLF *blf_glyph_cache_find(struct FontBLF *font, unsigned int size, unsigned int dpi); diff --git a/source/blender/blenfont/intern/blf_internal_types.h b/source/blender/blenfont/intern/blf_internal_types.h index caa10b2b125..38d7d7b6e21 100644 --- a/source/blender/blenfont/intern/blf_internal_types.h +++ b/source/blender/blenfont/intern/blf_internal_types.h @@ -34,6 +34,9 @@ /* Number of characters in KerningCacheBLF.table. */ #define KERNING_CACHE_TABLE_SIZE 128 +/* A value in the kerning cache that indicates it is not yet set. */ +#define KERNING_ENTRY_UNSET INT_MAX + typedef struct BatchBLF { struct FontBLF *font; /* can only batch glyph from the same font */ struct GPUBatch *batch; @@ -50,7 +53,6 @@ typedef struct BatchBLF { extern BatchBLF g_batch; typedef struct KerningCacheBLF { - struct KerningCacheBLF *next, *prev; /** * Cache a ascii glyph pairs. Only store the x offset we are interested in, * instead of the full #FT_Vector since it's not used for drawing at the moment. @@ -223,10 +225,7 @@ typedef struct FontBLF { */ ListBase cache; - /* list of kerning cache for this font. */ - ListBase kerning_caches; - - /* current kerning cache for this font and kerning mode. */ + /* Cache of unscaled kerning values. Will be NULL if font does not have kerning. */ KerningCacheBLF *kerning_cache; /* freetype2 lib handle. */ |