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-rw-r--r--common.h19
-rw-r--r--demo.c2
-rw-r--r--libskrift.h7
-rw-r--r--libskrift_create_context.c28
-rw-r--r--libskrift_free_context.c3
5 files changed, 40 insertions, 19 deletions
diff --git a/common.h b/common.h
index fdc17f5..615e9c2 100644
--- a/common.h
+++ b/common.h
@@ -14,15 +14,6 @@
#define MIN(A, B) ((A) < (B) ? (A) : (B))
#define MAX(A, B) ((A) > (B) ? (A) : (B))
-struct libskrift_context {
- LIBSKRIFT_FONT *font;
- struct libskrift_rendering rendering;
- struct SFT schrift_ctx;
- char subpixel_horizontally;
- char subpixel_vertically;
- char subpixel_bgr;
-};
-
struct libskrift_font {
SFT_Font *font;
void *memory_free;
@@ -30,3 +21,13 @@ struct libskrift_font {
size_t memory_size;
size_t refcount;
};
+
+struct libskrift_context {
+ struct libskrift_rendering rendering;
+ struct SFT schrift_ctx;
+ char subpixel_horizontally;
+ char subpixel_vertically;
+ char subpixel_bgr;
+ size_t nfonts;
+ LIBSKRIFT_FONT *fonts[];
+};
diff --git a/demo.c b/demo.c
index 79cf920..70708c7 100644
--- a/demo.c
+++ b/demo.c
@@ -25,7 +25,7 @@ main(void)
return -1;
}
height = libskrift_points_to_pixels(72, &rendering);
- if (libskrift_create_context(&ctx, font, &rendering, height)) {
+ if (libskrift_create_context(&ctx, &font, 1, height, &rendering)) {
perror("libskrift_create_context");
return -1;
}
diff --git a/libskrift.h b/libskrift.h
index 0ec54fe..1fa0085 100644
--- a/libskrift.h
+++ b/libskrift.h
@@ -56,7 +56,10 @@ enum libskrift_hinting {
#define LIBSKRIFT_REGRESS_TO_GRID 0x00000400U /* Combine with LIBSKRIFT_ADVANCE_TO_GRID for closest alternative */
#define LIBSKRIFT_USE_SUBPIXEL_GRID 0x00000800U
#define LIBSKRIFT_VERTICAL_TEXT 0x00001000U
-#define LIBSKRIFT_AUTOHINTING 0x00002000U
+#define LIBSKRIFT_AUTOHINTING 0x00002000U /* Use autohinter even if hint information exists */
+#define LIBSKRIFT_NO_AUTOHINTING 0x00004000U /* Use autohinter if no hint information exist */
+#define LIBSKRIFT_AUTOKERNING 0x00008000U /* Use autokerner even if kerning information exists */
+#define LIBSKRIFT_NO_AUTOKERNING 0x00010000U /* Use autokerner if no kerning information exist */
struct libskrift_rendering {
int struct_version;
@@ -164,7 +167,7 @@ void libskrift_close_font(LIBSKRIFT_FONT *);
_LIBSKRIFT_GCC_ONLY(__attribute__((__nonnull__(1, 2))))
-int libskrift_create_context(LIBSKRIFT_CONTEXT **, LIBSKRIFT_FONT *, const struct libskrift_rendering *, double);
+int libskrift_create_context(LIBSKRIFT_CONTEXT **, LIBSKRIFT_FONT **, size_t, double, const struct libskrift_rendering *);
void libskrift_free_context(LIBSKRIFT_CONTEXT *);
diff --git a/libskrift_create_context.c b/libskrift_create_context.c
index 9ebec24..4adf179 100644
--- a/libskrift_create_context.c
+++ b/libskrift_create_context.c
@@ -1,8 +1,13 @@
/* See LICENSE file for copyright and license details. */
#include "common.h"
+#define FORCED_FLAGS (LIBSKRIFT_NO_LIGATURES |\
+ LIBSKRIFT_NO_AUTOHINTING |\
+ LIBSKRIFT_NO_AUTOKERNING)
+
#define IMPLEMENTED_FLAGS (LIBSKRIFT_CORRECT_GAMMA |\
- LIBSKRIFT_REMOVE_GAMMA) /* libschrift does not add gamma, so not handling is required */
+ LIBSKRIFT_REMOVE_GAMMA |\
+ FORCED_FLAGS) /* libschrift does not add gamma, so not handling is required */
#define HAVE_MULTIPLE_FLAGS(HAVE, CHECK) (((HAVE) & (CHECK)) & (((HAVE) & (CHECK)) - 1))
@@ -12,8 +17,16 @@
static const struct libskrift_rendering default_rendering = LIBSKRIFT_DEFAULT_RENDERING;
int
-libskrift_create_context(LIBSKRIFT_CONTEXT **ctxp, LIBSKRIFT_FONT *font, const struct libskrift_rendering *rendering, double height)
+libskrift_create_context(LIBSKRIFT_CONTEXT **ctxp, LIBSKRIFT_FONT **fonts, size_t nfonts, double height,
+ const struct libskrift_rendering *rendering)
{
+ size_t i;
+
+ if (!nfonts) {
+ errno = EINVAL;
+ return -1;
+ }
+
if (rendering) {
if (HAVE_MULTIPLE_FLAGS(rendering->flags, LIBSKRIFT_CORRECT_GAMMA | LIBSKRIFT_REMOVE_GAMMA) ||
!rendering->grid_fineness) {
@@ -22,13 +35,16 @@ libskrift_create_context(LIBSKRIFT_CONTEXT **ctxp, LIBSKRIFT_FONT *font, const s
}
}
- *ctxp = calloc(1, sizeof(**ctxp));
+ *ctxp = calloc(1, offsetof(LIBSKRIFT_CONTEXT, fonts) + nfonts * sizeof(*(*ctxp)->fonts));
if (!*ctxp)
return -1;
- (*ctxp)->font = font;
- (*ctxp)->schrift_ctx.font = font->font;
+ (*ctxp)->schrift_ctx.font = fonts[0]->font;
(*ctxp)->schrift_ctx.yScale = height;
+ for (i = 0; i < nfonts; i++) {
+ (*ctxp)->fonts[i] = fonts[i];
+ fonts[i]->refcount += 1;
+ }
if (rendering) {
memcpy(&(*ctxp)->rendering, rendering, sizeof(*rendering));
@@ -47,6 +63,7 @@ libskrift_create_context(LIBSKRIFT_CONTEXT **ctxp, LIBSKRIFT_FONT *font, const s
(*ctxp)->rendering.struct_version = LIBSKRIFT_RENDERING_STRUCT_VERSION;
(*ctxp)->rendering.hinting = LIBSKRIFT_NONE;
(*ctxp)->rendering.flags &= IMPLEMENTED_FLAGS;
+ (*ctxp)->rendering.flags |= FORCED_FLAGS;
(*ctxp)->rendering.grid_fineness = 1;
(*ctxp)->rendering.kerning = 0;
(*ctxp)->rendering.interletter_spacing = 0;
@@ -78,6 +95,5 @@ libskrift_create_context(LIBSKRIFT_CONTEXT **ctxp, LIBSKRIFT_FONT *font, const s
}
}
- font->refcount += 1;
return 0;
}
diff --git a/libskrift_free_context.c b/libskrift_free_context.c
index 2375c05..68ac14d 100644
--- a/libskrift_free_context.c
+++ b/libskrift_free_context.c
@@ -5,7 +5,8 @@ void
libskrift_free_context(LIBSKRIFT_CONTEXT *ctx)
{
if (ctx) {
- libskrift_close_font(ctx->font);
+ while (ctx->nfonts--)
+ libskrift_close_font(ctx->fonts[ctx->nfonts]);
free(ctx);
}
}
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-21 15:49:59 +0000