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-rw-r--r--common.h22
-rw-r--r--libskrift_close_font.c3
-rw-r--r--libskrift_create_context.c4
-rw-r--r--libskrift_get_grapheme_glyph.c27
-rw-r--r--libskrift_open_font___.c39
5 files changed, 59 insertions, 36 deletions
diff --git a/common.h b/common.h
index e643477..37aa73e 100644
--- a/common.h
+++ b/common.h
@@ -14,31 +14,25 @@
#include <string.h>
#include <unistd.h>
-#include <schrift.h>
#include <grapheme.h>
+#include <schrift.h>
#define MIN(A, B) ((A) < (B) ? (A) : (B))
#define MAX(A, B) ((A) > (B) ? (A) : (B))
#define ELEMSOF(ARR) (sizeof(ARR) / sizeof(*(ARR)))
+#define FLAGXOR(F, A, B) ((((F) / (A)) ^ ((F) / (B))) & 1)
+
#define FLEXSTRUCTSIZE(STRUCT, FLEXARRAY, FLEXARRAY_LENGTH)\
(offsetof(STRUCT, FLEXARRAY) + (FLEXARRAY_LENGTH) * sizeof(*((STRUCT *)NULL)->FLEXARRAY))
-enum font_type {
- FONT_TYPE_SCHRIFT /* using libschrift backend */
-};
-
struct libskrift_font {
- enum font_type font_type;
- union {
- void *any;
- SFT_Font *schrift;
- } font;
- void *memory_free;
- void *memory_unmap;
- size_t memory_size;
- size_t refcount;
+ SFT_Font *font;
+ void *memory_free;
+ void *memory_unmap;
+ size_t memory_size;
+ size_t refcount;
};
struct libskrift_context {
diff --git a/libskrift_close_font.c b/libskrift_close_font.c
index c665cdb..2786666 100644
--- a/libskrift_close_font.c
+++ b/libskrift_close_font.c
@@ -5,8 +5,7 @@ void
libskrift_close_font(LIBSKRIFT_FONT *font)
{
if (font && !--font->refcount) {
- if (font->font_type == FONT_TYPE_SCHRIFT)
- sft_freefont(font->font.schrift);
+ sft_freefont(font->font);
free(font->memory_free);
if (font->memory_unmap)
munmap(font->memory_unmap, font->memory_size);
diff --git a/libskrift_create_context.c b/libskrift_create_context.c
index 15f8d50..6554f6a 100644
--- a/libskrift_create_context.c
+++ b/libskrift_create_context.c
@@ -5,6 +5,7 @@
LIBSKRIFT_NO_AUTOHINTING |\
LIBSKRIFT_NO_AUTOKERNING)
+/* TODO implement more flags */
#define IMPLEMENTED_FLAGS (LIBSKRIFT_REMOVE_GAMMA |\
LIBSKRIFT_MIRROR_TEXT |\
LIBSKRIFT_MIRROR_CHARS |\
@@ -38,7 +39,7 @@ transformation_hook(void *hook_data, double advance, double transform[6])
double schrift[6] = {transform[0], transform[2], transform[4],
transform[1], transform[3], transform[5]};
double m1[6] = {1, 0, 0, 0, 1, 0}, m2[6] = {1, 0, 0, 0, 1, 0};
- if (((ctx->rendering.flags / LIBSKRIFT_MIRROR_CHARS) ^ (ctx->rendering.flags / LIBSKRIFT_MIRROR_TEXT)) & 1)
+ if (FLAGXOR(ctx->rendering.flags, LIBSKRIFT_MIRROR_CHARS, LIBSKRIFT_MIRROR_TEXT))
multiply_matrices((double []){-1, 0, advance / schrift[0], 0, 1, 0}, m2, m1);
multiply_matrices(ctx->transformation, m1, m2);
multiply_matrices(schrift, m2, m1);
@@ -75,7 +76,6 @@ libskrift_create_context(LIBSKRIFT_CONTEXT **ctxp, LIBSKRIFT_FONT **fonts, size_
if (!*ctxp)
return -1;
- (*ctxp)->schrift_ctx.font = fonts[0]->font.schrift;
(*ctxp)->schrift_ctx.yScale = height;
(*ctxp)->char_x_advancement = 1;
(*ctxp)->char_y_advancement = 0;
diff --git a/libskrift_get_grapheme_glyph.c b/libskrift_get_grapheme_glyph.c
index 515e81d..e0b699d 100644
--- a/libskrift_get_grapheme_glyph.c
+++ b/libskrift_get_grapheme_glyph.c
@@ -1,9 +1,9 @@
/* See LICENSE file for copyright and license details. */
#include "common.h"
-int
-libskrift_get_grapheme_glyph(LIBSKRIFT_CONTEXT *ctx, libskrift_codepoint_t codepoint,
- double cursor_x, double cursor_y, struct libskrift_glyph **glyphp)
+static int
+get_grapheme_glyph_with_font(LIBSKRIFT_CONTEXT *ctx, libskrift_codepoint_t codepoint, double cursor_x,
+ double cursor_y, struct libskrift_glyph **glyphp, LIBSKRIFT_FONT *font)
{
struct SFT_Char sft_chr;
struct SFT sft_ctx;
@@ -15,12 +15,14 @@ libskrift_get_grapheme_glyph(LIBSKRIFT_CONTEXT *ctx, libskrift_codepoint_t codep
memset(&sft_chr, 0, sizeof(sft_chr));
sft_ctx = ctx->schrift_ctx;
+ sft_ctx.font = font->font;
sft_ctx.x = cursor_x * (ctx->subpixel_horizontally ? 3 : 1);
sft_ctx.y = cursor_y * (ctx->subpixel_vertically ? 3 : 1);
sft_ctx.flags = SFT_DOWNWARD_Y | SFT_CHAR_IMAGE;
+ errno = 0;
if (sft_char(&sft_ctx, codepoint, &sft_chr))
- return -1;
+ return errno ? -1 : 1;
if (ctx->subpixel_horizontally) {
hmul = 3;
@@ -99,3 +101,20 @@ libskrift_get_grapheme_glyph(LIBSKRIFT_CONTEXT *ctx, libskrift_codepoint_t codep
free(sft_chr.image);
return 0;
}
+
+int
+libskrift_get_grapheme_glyph(LIBSKRIFT_CONTEXT *ctx, libskrift_codepoint_t codepoint,
+ double cursor_x, double cursor_y, struct libskrift_glyph **glyphp)
+{
+ size_t i;
+ int r;
+
+ for (i = 0; i < ctx->nfonts; i++) {
+ r = get_grapheme_glyph_with_font(ctx, codepoint, cursor_x, cursor_y, glyphp, ctx->fonts[i]);
+ if (r <= 0)
+ return r;
+ }
+
+ /* TODO add callback for drawing fallback glyph, draw square by default. */
+ return -1;
+}
diff --git a/libskrift_open_font___.c b/libskrift_open_font___.c
index c1bcfb5..3668cb3 100644
--- a/libskrift_open_font___.c
+++ b/libskrift_open_font___.c
@@ -9,6 +9,10 @@
#define IS_PSF_V2() (size >= 32 && mem8[0] == 0x72 && mem8[1] == 0xb5 && mem8[2] == 0x4a && mem8[3] == 0x86)
#if defined(GUNZIP_PATH)
+# define WITH_DECOMPRESS
+#endif
+
+#ifdef WITH_DECOMPRESS
static int
decompress(const char *path, const void *mem, size_t size, void **memp, size_t *sizep)
{
@@ -200,8 +204,10 @@ libskrift_open_font___(LIBSKRIFT_FONT **fontp, const void *mem_static, void *mem
const void *mem = mem_static ? mem_static : mem_free ? mem_free : mem_unmap;
const uint8_t *mem8 = mem;
void *new_mem = NULL;
-#if defined(GUNZIP_PATH)
- size_t new_size = 0;
+#ifdef WITH_DECOMPRESS
+ void *free_on_failure = NULL;
+ void *old_free = NULL, *old_unmap = NULL;
+ size_t new_size = 0, old_size = size;
#endif
*fontp = calloc(1, sizeof(**fontp));
@@ -213,28 +219,26 @@ libskrift_open_font___(LIBSKRIFT_FONT **fontp, const void *mem_static, void *mem
if (IS_GZIP()) {
if (decompress(GUNZIP_PATH, mem, size, &new_mem, &new_size))
return -1;
- if (mem_free)
- free(mem_free);
- else if (mem_unmap)
- munmap(mem_unmap, size);
+ old_free = mem_free;
+ old_unmap = mem_unmap;
mem_static = NULL;
mem_unmap = NULL;
- mem8 = mem = mem_free = new_mem;
+ mem8 = mem = free_on_failure = mem_free = new_mem;
size = new_size;
}
#endif
- if (IS_PSF_V1() || IS_PSF_V2()) { /* TODO */
- errno = EBFONT;
- return -1;
- } else {
- (*fontp)->font_type = FONT_TYPE_SCHRIFT;
- (*fontp)->font.schrift = sft_loadmem(mem, size);
+ if (IS_PSF_V1() || IS_PSF_V2()) {
+ /* TODO Convert to TTF */
}
- if (!(*fontp)->font.any) {
+ (*fontp)->font = sft_loadmem(mem, size);
+ if (!(*fontp)->font) {
free(*fontp);
*fontp = NULL;
+#ifdef WITH_DECOMPRESS
+ free(free_on_failure);
+#endif
return -1;
}
@@ -246,5 +250,12 @@ libskrift_open_font___(LIBSKRIFT_FONT **fontp, const void *mem_static, void *mem
(*fontp)->memory_size = size;
}
+#ifdef WITH_DECOMPRESS
+ if (old_free)
+ free(old_free);
+ else if (old_unmap)
+ munmap(old_unmap, old_size);
+#endif
+
return 0;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-08 13:57:44 +0000