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[wasm-api] Bind font_glyph_to_string

This commit is contained in:
Behdad Esfahbod 2023-02-24 11:53:47 -07:00
parent 7537d48f08
commit 1acff90b03
5 changed files with 28 additions and 1 deletions
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12
src/hb-wasm-api-font.hh
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@ -88,6 +88,18 @@ font_get_glyph_v_advance (HB_WASM_EXEC_ENV
return hb_font_get_glyph_v_advance (font, glyph);
}
void
font_glyph_to_string (HB_WASM_EXEC_ENV
ptr_t(font_t) fontref,
codepoint_t glyph,
char *s, uint32_t size)
{
HB_REF2OBJ (font);
hb_font_glyph_to_string (font, glyph, s, size);
}
}}
#endif /* HB_WASM_API_FONT_HH */

1
src/hb-wasm-api-list.hh
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@ -72,6 +72,7 @@ static NativeSymbol _hb_wasm_native_symbols[] =
NATIVE_SYMBOL ("(iii)i", font_get_glyph),
NATIVE_SYMBOL ("(ii)i", font_get_glyph_h_advance),
NATIVE_SYMBOL ("(ii)i", font_get_glyph_v_advance),
NATIVE_SYMBOL ("(ii$*)", font_glyph_to_string),
/* shape */
NATIVE_SYMBOL ("(ii$)i", shape_with),

5
src/hb-wasm-api.h
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@ -188,6 +188,11 @@ HB_WASM_API (position_t, font_get_glyph_v_advance) (HB_WASM_EXEC_ENV
ptr_t(font_t),
codepoint_t glyph);
HB_WASM_API (void, font_glyph_to_string) (HB_WASM_EXEC_ENV
ptr_t(font_t),
codepoint_t glyph,
char *s, uint32_t size);
/* shape */

3
src/wasm-graphite/shape.cc
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@ -15,6 +15,9 @@ void *memset(void *s, int c, size_t n);
void debugprint1 (char *s, int32_t);
void debugprint2 (char *s, int32_t, int32_t);
__attribute__((visibility("default")))
uint32_t heap_size = 2 * 1024 * 1024;
static const void *copy_table (const void *data, unsigned int tag, size_t *len)
{
face_t *face = (face_t *) data;

8
src/wasm-sample/shape-fallback.cc
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@ -3,6 +3,7 @@
#include <hb-wasm-api.h>
extern "C" {
void debugprint (const char *s);
void debugprint1 (const char *s, int32_t);
void debugprint2 (const char *s, int32_t, int32_t);
}
@ -24,7 +25,12 @@ shape (font_t *font, buffer_t *buffer)
for (unsigned i = 0; i < contents.length; i++)
{
debugprint2 ("Codepoint", i, contents.info[i].codepoint);
char name[64];
font_glyph_to_string (font, contents.info[i].codepoint, name, sizeof (name));
debugprint (name);
contents.info[i].codepoint = font_get_glyph (font, contents.info[i].codepoint, 0);
contents.pos[i].x_advance = font_get_glyph_h_advance (font, contents.info[i].codepoint);
}