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path: root/source/blender/blenfont/intern/blf_font.c
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Diffstat (limited to 'source/blender/blenfont/intern/blf_font.c')
-rw-r--r--source/blender/blenfont/intern/blf_font.c282
1 files changed, 93 insertions, 189 deletions
diff --git a/source/blender/blenfont/intern/blf_font.c b/source/blender/blenfont/intern/blf_font.c
index 3bec7dd2626..f3f3b759e5c 100644
--- a/source/blender/blenfont/intern/blf_font.c
+++ b/source/blender/blenfont/intern/blf_font.c
@@ -62,7 +62,7 @@ static FT_Library ft_lib;
int blf_font_init(void)
{
- return(FT_Init_FreeType(&ft_lib));
+ return FT_Init_FreeType(&ft_lib);
}
void blf_font_exit(void)
@@ -136,26 +136,33 @@ static void blf_font_ensure_ascii_table(FontBLF *font)
} \
+#define BLF_KERNING_VARS(_font, _has_kerning, _kern_mode) \
+ const short has_kerning= FT_HAS_KERNING((_font)->face); \
+ const FT_UInt kern_mode= (has_kerning == 0) ? 0 : \
+ (((_font)->flags & BLF_KERNING_DEFAULT) ? \
+ ft_kerning_default : FT_KERNING_UNFITTED) \
+ \
+
+
+#define BLF_KERNING_STEP(_font, kern_mode, g_prev, g, delta, pen_x) \
+{ \
+ if (g_prev) { \
+ delta.x= delta.y= 0; \
+ if (FT_Get_Kerning((_font)->face, g_prev->idx, g->idx, kern_mode, &delta) == 0) \
+ pen_x += delta.x >> 6; \
+ } \
+} \
void blf_font_draw(FontBLF *font, const char *str, unsigned int len)
{
unsigned int c;
- GlyphBLF *g, *g_prev;
+ GlyphBLF *g, *g_prev= NULL;
FT_Vector delta;
- int pen_x, pen_y;
- int has_kerning, st;
- unsigned int i;
- GlyphBLF **glyph_ascii_table;
-
- if (!font->glyph_cache)
- return;
- glyph_ascii_table= font->glyph_cache->glyph_ascii_table;
+ int pen_x= 0, pen_y= 0;
+ unsigned int i= 0;
+ GlyphBLF **glyph_ascii_table= font->glyph_cache->glyph_ascii_table;
- i= 0;
- pen_x= 0;
- pen_y= 0;
- has_kerning= FT_HAS_KERNING(font->face);
- g_prev= NULL;
+ BLF_KERNING_VARS(font, has_kerning, kern_mode);
blf_font_ensure_ascii_table(font);
@@ -163,25 +170,9 @@ void blf_font_draw(FontBLF *font, const char *str, unsigned int len)
BLF_UTF8_NEXT_FAST(font, g, str, i, c, glyph_ascii_table);
- if (c == 0)
- break;
-
- /* if we don't found a glyph, skip it. */
- if (!g)
- continue;
-
- if (has_kerning && g_prev) {
- delta.x= 0;
- delta.y= 0;
-
- if (font->flags & BLF_KERNING_DEFAULT)
- st= FT_Get_Kerning(font->face, g_prev->idx, g->idx, ft_kerning_default, &delta);
- else
- st= FT_Get_Kerning(font->face, g_prev->idx, g->idx, FT_KERNING_UNFITTED, &delta);
-
- if (st == 0)
- pen_x += delta.x >> 6;
- }
+ if (c == 0) break;
+ if (g == NULL) continue;
+ if (has_kerning) BLF_KERNING_STEP(font, kern_mode, g_prev, g, delta, pen_x);
/* do not return this loop if clipped, we want every character tested */
blf_glyph_render(font, g, (float)pen_x, (float)pen_y);
@@ -194,43 +185,19 @@ void blf_font_draw(FontBLF *font, const char *str, unsigned int len)
/* faster version of blf_font_draw, ascii only for view dimensions */
void blf_font_draw_ascii(FontBLF *font, const char *str, unsigned int len)
{
- char c;
- GlyphBLF *g, *g_prev;
+ unsigned char c;
+ GlyphBLF *g, *g_prev= NULL;
FT_Vector delta;
- int pen_x, pen_y;
- int has_kerning, st;
- GlyphBLF **glyph_ascii_table;
-
- if (!font->glyph_cache)
- return;
- glyph_ascii_table= font->glyph_cache->glyph_ascii_table;
+ int pen_x= 0, pen_y= 0;
+ GlyphBLF **glyph_ascii_table= font->glyph_cache->glyph_ascii_table;
- pen_x= 0;
- pen_y= 0;
- has_kerning= FT_HAS_KERNING(font->face);
- g_prev= NULL;
+ BLF_KERNING_VARS(font, has_kerning, kern_mode);
blf_font_ensure_ascii_table(font);
while ((c= *(str++)) && len--) {
- g= glyph_ascii_table[c];
-
- /* if we don't found a glyph, skip it. */
- if (!g)
- continue;
-
- if (has_kerning && g_prev) {
- delta.x= 0;
- delta.y= 0;
-
- if (font->flags & BLF_KERNING_DEFAULT)
- st= FT_Get_Kerning(font->face, g_prev->idx, g->idx, ft_kerning_default, &delta);
- else
- st= FT_Get_Kerning(font->face, g_prev->idx, g->idx, FT_KERNING_UNFITTED, &delta);
-
- if (st == 0)
- pen_x += delta.x >> 6;
- }
+ if ((g= glyph_ascii_table[c]) == NULL) continue;
+ if (has_kerning) BLF_KERNING_STEP(font, kern_mode, g_prev, g, delta, pen_x);
/* do not return this loop if clipped, we want every character tested */
blf_glyph_render(font, g, (float)pen_x, (float)pen_y);
@@ -240,59 +207,37 @@ void blf_font_draw_ascii(FontBLF *font, const char *str, unsigned int len)
}
}
+/* Sanity checks are done by BLF_draw_buffer() */
void blf_font_buffer(FontBLF *font, const char *str)
{
- unsigned char *cbuf;
unsigned int c;
- unsigned char b_col_char[4];
- GlyphBLF *g, *g_prev;
+ GlyphBLF *g, *g_prev= NULL;
FT_Vector delta;
+ int pen_x= (int)font->pos[0], pen_y= 0;
+ unsigned int i= 0;
+ GlyphBLF **glyph_ascii_table= font->glyph_cache->glyph_ascii_table;
+
+ /* buffer spesific vars*/
+ const unsigned char b_col_char[4]= {font->b_col[0] * 255,
+ font->b_col[1] * 255,
+ font->b_col[2] * 255,
+ font->b_col[3] * 255};
+ unsigned char *cbuf;
+ int chx, chy;
+ int y, x;
float a, *fbuf;
- int pen_x, y, x;
- int has_kerning, st, chx, chy;
- unsigned int i;
- GlyphBLF **glyph_ascii_table;
- if (!font->glyph_cache || (!font->b_fbuf && !font->b_cbuf))
- return;
- glyph_ascii_table= font->glyph_cache->glyph_ascii_table;
-
- i= 0;
- pen_x= (int)font->pos[0];
- has_kerning= FT_HAS_KERNING(font->face);
- g_prev= NULL;
-
- b_col_char[0]= font->b_col[0] * 255;
- b_col_char[1]= font->b_col[1] * 255;
- b_col_char[2]= font->b_col[2] * 255;
- b_col_char[3]= font->b_col[3] * 255;
+ BLF_KERNING_VARS(font, has_kerning, kern_mode);
blf_font_ensure_ascii_table(font);
while (str[i]) {
- int pen_y;
BLF_UTF8_NEXT_FAST(font, g, str, i, c, glyph_ascii_table);
- if (c == 0)
- break;
-
- /* if we don't found a glyph, skip it. */
- if (!g)
- continue;
-
- if (has_kerning && g_prev) {
- delta.x= 0;
- delta.y= 0;
-
- if (font->flags & BLF_KERNING_DEFAULT)
- st= FT_Get_Kerning(font->face, g_prev->idx, g->idx, ft_kerning_default, &delta);
- else
- st= FT_Get_Kerning(font->face, g_prev->idx, g->idx, FT_KERNING_UNFITTED, &delta);
-
- if (st == 0)
- pen_x += delta.x >> 6;
- }
+ if (c == 0) break;
+ if (g == NULL) continue;
+ if (has_kerning) BLF_KERNING_STEP(font, kern_mode, g_prev, g, delta, pen_x);
chx= pen_x + ((int)g->pos_x);
chy= (int)font->pos[1] + g->height;
@@ -392,69 +337,41 @@ void blf_font_buffer(FontBLF *font, const char *str)
void blf_font_boundbox(FontBLF *font, const char *str, rctf *box)
{
unsigned int c;
- GlyphBLF *g, *g_prev;
+ GlyphBLF *g, *g_prev= NULL;
FT_Vector delta;
+ int pen_x= 0, pen_y= 0;
+ unsigned int i= 0;
+ GlyphBLF **glyph_ascii_table= font->glyph_cache->glyph_ascii_table;
+
rctf gbox;
- int pen_x, pen_y;
- int has_kerning, st;
- unsigned int i;
- GlyphBLF **glyph_ascii_table;
- if (!font->glyph_cache)
- return;
+ BLF_KERNING_VARS(font, has_kerning, kern_mode);
box->xmin= 32000.0f;
box->xmax= -32000.0f;
box->ymin= 32000.0f;
box->ymax= -32000.0f;
- i= 0;
- pen_x= 0;
- pen_y= 0;
- has_kerning= FT_HAS_KERNING(font->face);
- g_prev= NULL;
-
blf_font_ensure_ascii_table(font);
- glyph_ascii_table= font->glyph_cache->glyph_ascii_table;
while (str[i]) {
BLF_UTF8_NEXT_FAST(font, g, str, i, c, glyph_ascii_table);
- if (c == 0)
- break;
-
- /* if we don't found a glyph, skip it. */
- if (!g)
- continue;
-
- if (has_kerning && g_prev) {
- delta.x= 0;
- delta.y= 0;
-
- if (font->flags & BLF_KERNING_DEFAULT)
- st= FT_Get_Kerning(font->face, g_prev->idx, g->idx, ft_kerning_default, &delta);
- else
- st= FT_Get_Kerning(font->face, g_prev->idx, g->idx, FT_KERNING_UNFITTED, &delta);
-
- if (st == 0)
- pen_x += delta.x >> 6;
- }
+ if (c == 0) break;
+ if (g == NULL) continue;
+ if (has_kerning) BLF_KERNING_STEP(font, kern_mode, g_prev, g, delta, pen_x);
gbox.xmin= pen_x;
gbox.xmax= pen_x + g->advance;
gbox.ymin= g->box.ymin + pen_y;
gbox.ymax= g->box.ymax + pen_y;
- if (gbox.xmin < box->xmin)
- box->xmin= gbox.xmin;
- if (gbox.ymin < box->ymin)
- box->ymin= gbox.ymin;
+ if (gbox.xmin < box->xmin) box->xmin= gbox.xmin;
+ if (gbox.ymin < box->ymin) box->ymin= gbox.ymin;
- if (gbox.xmax > box->xmax)
- box->xmax= gbox.xmax;
- if (gbox.ymax > box->ymax)
- box->ymax= gbox.ymax;
+ if (gbox.xmax > box->xmax) box->xmax= gbox.xmax;
+ if (gbox.ymax > box->ymax) box->ymax= gbox.ymax;
pen_x += g->advance;
g_prev= g;
@@ -473,20 +390,18 @@ void blf_font_width_and_height(FontBLF *font, const char *str, float *width, flo
float xa, ya;
rctf box;
- if (font->glyph_cache) {
- if (font->flags & BLF_ASPECT) {
- xa= font->aspect[0];
- ya= font->aspect[1];
- }
- else {
- xa= 1.0f;
- ya= 1.0f;
- }
-
- blf_font_boundbox(font, str, &box);
- *width= ((box.xmax - box.xmin) * xa);
- *height= ((box.ymax - box.ymin) * ya);
+ if (font->flags & BLF_ASPECT) {
+ xa= font->aspect[0];
+ ya= font->aspect[1];
+ }
+ else {
+ xa= 1.0f;
+ ya= 1.0f;
}
+
+ blf_font_boundbox(font, str, &box);
+ *width= ((box.xmax - box.xmin) * xa);
+ *height= ((box.ymax - box.ymin) * ya);
}
float blf_font_width(FontBLF *font, const char *str)
@@ -494,16 +409,13 @@ float blf_font_width(FontBLF *font, const char *str)
float xa;
rctf box;
- if (!font->glyph_cache)
- return(0.0f);
-
if (font->flags & BLF_ASPECT)
xa= font->aspect[0];
else
xa= 1.0f;
blf_font_boundbox(font, str, &box);
- return((box.xmax - box.xmin) * xa);
+ return (box.xmax - box.xmin) * xa;
}
float blf_font_height(FontBLF *font, const char *str)
@@ -511,36 +423,28 @@ float blf_font_height(FontBLF *font, const char *str)
float ya;
rctf box;
- if (!font->glyph_cache)
- return(0.0f);
-
if (font->flags & BLF_ASPECT)
ya= font->aspect[1];
else
ya= 1.0f;
blf_font_boundbox(font, str, &box);
- return((box.ymax - box.ymin) * ya);
+ return (box.ymax - box.ymin) * ya;
}
float blf_font_fixed_width(FontBLF *font)
{
- GlyphBLF *g;
- FT_UInt glyph_index;
- unsigned int c = ' ';
-
- if (!font->glyph_cache)
- return 0.0f;
-
- glyph_index= FT_Get_Char_Index(font->face, c);
- g= blf_glyph_search(font->glyph_cache, c);
- if (!g)
- g= blf_glyph_add(font, glyph_index, c);
-
- /* if we don't find the glyph. */
- if (!g)
- return 0.0f;
-
+ const unsigned int c = ' ';
+ GlyphBLF *g= blf_glyph_search(font->glyph_cache, c);
+ if (!g) {
+ g= blf_glyph_add(font, FT_Get_Char_Index(font->face, c), c);
+
+ /* if we don't find the glyph. */
+ if (!g) {
+ return 0.0f;
+ }
+ }
+
return g->advance;
}
@@ -611,7 +515,7 @@ FontBLF *blf_font_new(const char *name, const char *filename)
err= FT_New_Face(ft_lib, filename, 0, &font->face);
if (err) {
MEM_freeN(font);
- return(NULL);
+ return NULL;
}
err= FT_Select_Charmap(font->face, ft_encoding_unicode);
@@ -619,7 +523,7 @@ FontBLF *blf_font_new(const char *name, const char *filename)
printf("Can't set the unicode character map!\n");
FT_Done_Face(font->face);
MEM_freeN(font);
- return(NULL);
+ return NULL;
}
mfile= blf_dir_metrics_search(filename);
@@ -631,7 +535,7 @@ FontBLF *blf_font_new(const char *name, const char *filename)
font->name= BLI_strdup(name);
font->filename= BLI_strdup(filename);
blf_font_fill(font);
- return(font);
+ return font;
}
void blf_font_attach_from_mem(FontBLF *font, const unsigned char *mem, int mem_size)
@@ -653,7 +557,7 @@ FontBLF *blf_font_new_from_mem(const char *name, unsigned char *mem, int mem_siz
err= FT_New_Memory_Face(ft_lib, mem, mem_size, 0, &font->face);
if (err) {
MEM_freeN(font);
- return(NULL);
+ return NULL;
}
err= FT_Select_Charmap(font->face, ft_encoding_unicode);
@@ -661,11 +565,11 @@ FontBLF *blf_font_new_from_mem(const char *name, unsigned char *mem, int mem_siz
printf("Can't set the unicode character map!\n");
FT_Done_Face(font->face);
MEM_freeN(font);
- return(NULL);
+ return NULL;
}
font->name= BLI_strdup(name);
font->filename= NULL;
blf_font_fill(font);
- return(font);
+ return font;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-27 09:38:58 +0300