forked from len0rd/rockbox
FS#12273 - use buflib for font storage. thanks to the testers :)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30589 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jonathan Gordon
parent
f323300b82
commit
aa0f4a4bbe
37 changed files with 410 additions and 404 deletions
294
firmware/font.c
294
firmware/font.c
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@ -34,6 +34,7 @@
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#include "system.h"
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#include "font.h"
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#include "file.h"
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#include "core_alloc.h"
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#include "debug.h"
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#include "panic.h"
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#include "rbunicode.h"
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@ -74,19 +75,58 @@ extern struct font sysfont;
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#ifndef BOOTLOADER
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/* structure filled in by font_load */
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static struct font font_ui;
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/* static buffer allocation structures */
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static unsigned char main_buf[MAX_FONT_SIZE] CACHEALIGN_ATTR;
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#ifdef HAVE_REMOTE_LCD
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#define REMOTE_FONT_SIZE 10000
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static struct font remote_font_ui;
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static unsigned char remote_buf[REMOTE_FONT_SIZE] CACHEALIGN_ATTR;
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#endif
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struct buflib_alloc_data {
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struct font font;
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bool handle_locked; /* is the buflib handle currently locked? */
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int refcount; /* how many times has this font been loaded? */
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unsigned char buffer[MAX_FONT_SIZE];
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};
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static int buflib_allocations[MAXFONTS];
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static int handle_for_glyphcache;
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/* system font table, in order of FONT_xxx definition */
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static struct font* sysfonts[MAXFONTS] = { &sysfont, &font_ui, NULL};
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static int buflibmove_callback(int handle, void* current, void* new)
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{
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(void)handle;
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struct buflib_alloc_data *alloc = (struct buflib_alloc_data*)current;
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size_t diff = new - current;
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if (alloc->handle_locked)
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return BUFLIB_CB_CANNOT_MOVE;
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alloc->font.bits += diff;
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alloc->font.offset += diff;
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if (alloc->font.width)
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alloc->font.width += diff;
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alloc->font.buffer_start += diff;
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alloc->font.buffer_end += diff;
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alloc->font.buffer_position += diff;
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alloc->font.cache._index += diff;
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return BUFLIB_CB_OK;
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}
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static void lock_font_handle(int handle, bool lock)
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{
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struct buflib_alloc_data *alloc = core_get_data(handle);
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alloc->handle_locked = lock;
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}
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static struct buflib_callbacks buflibops = {buflibmove_callback, NULL };
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static inline struct font *pf_from_handle(int handle)
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{
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struct buflib_alloc_data *alloc = core_get_data(handle);
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struct font *pf = &alloc->font;
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return pf;
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}
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static inline unsigned char *buffer_from_handle(int handle)
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{
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struct buflib_alloc_data *alloc = core_get_data(handle);
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unsigned char* buffer = alloc->buffer;
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return buffer;
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}
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/* Font cache structures */
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static void cache_create(struct font* pf);
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@ -95,13 +135,10 @@ static void glyph_cache_load(struct font* pf);
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void font_init(void)
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{
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int i = SYSTEMFONTCOUNT;
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int i = 0;
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while (i<MAXFONTS)
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sysfonts[i++] = NULL;
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font_reset(NULL);
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#ifdef HAVE_REMOTE_LCD
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font_reset(&remote_font_ui);
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#endif
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buflib_allocations[i++] = -1;
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handle_for_glyphcache = -1;
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}
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/* Check if we have x bytes left in the file buffer */
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@ -139,26 +176,6 @@ static int glyph_bytes( struct font *pf, int width )
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width * ((pf->height + 7) / 8);
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}
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void font_reset(struct font *pf)
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{
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unsigned char* buffer = NULL;
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size_t buf_size = 0;
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if (pf == NULL)
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pf = &font_ui;
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else
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{
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buffer = pf->buffer_start;
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buf_size = pf->buffer_size;
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}
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memset(pf, 0, sizeof(struct font));
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pf->fd = -1;
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if (buffer)
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{
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pf->buffer_start = buffer;
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pf->buffer_size = buf_size;
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}
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}
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static struct font* font_load_header(struct font *pf)
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{
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/* Check we have enough data */
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@ -320,18 +337,27 @@ static struct font* font_load_cached(struct font* pf)
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return pf;
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}
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static bool internal_load_font(struct font* pf, const char *path,
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static void font_reset(int font_id)
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{
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struct font *pf = pf_from_handle(buflib_allocations[font_id]);
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// fixme
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memset(pf, 0, sizeof(struct font));
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pf->fd = -1;
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}
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static bool internal_load_font(int font_id, const char *path,
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char *buf, size_t buf_size)
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{
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int size;
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struct font* pf = pf_from_handle(buflib_allocations[font_id]);
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/* save loaded glyphs */
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glyph_cache_save(pf);
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/* Close font file handle */
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if (pf->fd >= 0)
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close(pf->fd);
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font_reset(pf);
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font_reset(font_id);
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/* open and read entire font file*/
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pf->fd = open(path, O_RDONLY|O_BINARY);
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@ -393,80 +419,117 @@ static bool internal_load_font(struct font* pf, const char *path,
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return true;
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}
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#ifdef HAVE_REMOTE_LCD
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/* Load a font into the special remote ui font slot */
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int font_load_remoteui(const char* path)
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static int find_font_index(const char* path)
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{
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struct font* pf = &remote_font_ui;
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if (!path)
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{
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if (sysfonts[FONT_UI_REMOTE] && sysfonts[FONT_UI_REMOTE] != sysfonts[FONT_UI])
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font_unload(FONT_UI_REMOTE);
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sysfonts[FONT_UI_REMOTE] = NULL;
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return FONT_UI;
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}
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if (!internal_load_font(pf, path, remote_buf, REMOTE_FONT_SIZE))
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{
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sysfonts[FONT_UI_REMOTE] = NULL;
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return -1;
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}
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sysfonts[FONT_UI_REMOTE] = pf;
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return FONT_UI_REMOTE;
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}
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#endif
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int index = 0, handle;
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while (index < MAXFONTS)
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{
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handle = buflib_allocations[index];
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if (handle > 0 && !strcmp(core_get_name(handle), path))
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return index;
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index++;
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}
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return FONT_SYSFIXED;
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}
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static int alloc_and_init(int font_idx, const char* name)
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{
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int *phandle = &buflib_allocations[font_idx];
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int handle = *phandle;
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struct buflib_alloc_data *pdata;
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struct font *pf;
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if (handle > 0)
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return handle;
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*phandle = core_alloc_ex(name, sizeof(struct buflib_alloc_data), &buflibops);
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handle = *phandle;
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if (handle < 0)
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return handle;
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pdata = core_get_data(handle);
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pf = &pdata->font;
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font_reset(font_idx);
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pdata->handle_locked = false;
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pdata->refcount = 1;
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pf->buffer_position = pf->buffer_start = buffer_from_handle(handle);
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pf->buffer_size = MAX_FONT_SIZE;
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return handle;
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}
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const char* font_filename(int font_id)
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{
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int handle = buflib_allocations[font_id];
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if (handle > 0)
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return core_get_name(handle);
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return NULL;
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}
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/* read and load font into incore font structure,
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* returns the font number on success, -1 on failure */
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int font_load(struct font* pf, const char *path)
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int font_load(const char *path)
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{
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int font_id = -1;
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int font_id = find_font_index(path);
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char *buffer;
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size_t buffer_size;
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if (pf == NULL)
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int *handle;
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if (font_id > FONT_SYSFIXED)
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{
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pf = &font_ui;
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font_id = FONT_UI;
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/* already loaded, no need to reload */
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struct buflib_alloc_data *pd = core_get_data(buflib_allocations[font_id]);
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pd->refcount++;
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//printf("reusing handle %d for %s (count: %d)\n", font_id, path, pd->refcount);
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return font_id;
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}
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else
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for (font_id = FONT_FIRSTUSERFONT; font_id < MAXFONTS; font_id++)
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{
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for (font_id = SYSTEMFONTCOUNT; font_id < MAXFONTS; font_id++)
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handle = &buflib_allocations[font_id];
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if (*handle < 0)
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{
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if (sysfonts[font_id] == NULL)
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break;
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break;
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}
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if (font_id == MAXFONTS)
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return -1; /* too many fonts */
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}
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if (font_id == FONT_UI)
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{
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/* currently, font loading replaces earlier font allocation*/
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buffer = (unsigned char *)(((intptr_t)main_buf + 3) & ~3);
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/* make sure above doesn't exceed */
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buffer_size = MAX_FONT_SIZE-3;
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}
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else
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{
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buffer = pf->buffer_start;
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buffer_size = pf->buffer_size;
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}
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if (!internal_load_font(pf, path, buffer, buffer_size))
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handle = &buflib_allocations[font_id];
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*handle = alloc_and_init(font_id, path);
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if (*handle < 0)
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return -1;
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if (handle_for_glyphcache < 0)
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handle_for_glyphcache = *handle;
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buffer = buffer_from_handle(*handle);
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buffer_size = MAX_FONT_SIZE; //FIXME
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lock_font_handle(*handle, true);
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if (!internal_load_font(font_id, path, buffer, buffer_size))
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{
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lock_font_handle(*handle, false);
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core_free(*handle);
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*handle = -1;
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return -1;
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}
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sysfonts[font_id] = pf;
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lock_font_handle(*handle, false);
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//printf("%s -> [%d] -> %d\n", path, font_id, *handle);
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return font_id; /* success!*/
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}
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void font_unload(int font_id)
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{
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struct font* pf = sysfonts[font_id];
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if (font_id >= SYSTEMFONTCOUNT && pf)
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int *handle = &buflib_allocations[font_id];
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struct buflib_alloc_data *pdata = core_get_data(*handle);
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struct font* pf = &pdata->font;
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pdata->refcount--;
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if (pdata->refcount < 1)
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{
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if (pf->fd >= 0)
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//printf("freeing id: %d %s\n", font_id, core_get_name(*handle));
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if (pf && pf->fd >= 0)
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close(pf->fd);
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sysfonts[font_id] = NULL;
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if (*handle > 0)
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core_free(*handle);
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if (handle_for_glyphcache == *handle)
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handle_for_glyphcache = -1; // should find the next available handle
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*handle = -1;
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}
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}
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@ -478,16 +541,37 @@ void font_unload(int font_id)
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struct font* font_get(int font)
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{
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struct font* pf;
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if (font == FONT_UI)
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font = MAXFONTS-1;
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if (font <= FONT_SYSFIXED)
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return &sysfont;
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while (1) {
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pf = sysfonts[font];
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struct buflib_alloc_data *alloc = core_get_data(buflib_allocations[font]);
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pf = &alloc->font;
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if (pf && pf->height)
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return pf;
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if (--font < 0)
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panicf("No font!");
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return &sysfont;
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}
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}
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static int pf_to_handle(struct font* pf)
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{
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int i;
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for (i=0; i<MAXFONTS; i++)
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{
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int handle = buflib_allocations[i];
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if (handle > 0)
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{
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struct buflib_alloc_data *pdata = core_get_data(handle);
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if (pf == &pdata->font)
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return handle;
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}
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}
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return -1;
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}
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/*
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* Reads an entry into cache entry
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*/
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@ -495,9 +579,12 @@ static void
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load_cache_entry(struct font_cache_entry* p, void* callback_data)
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{
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struct font* pf = callback_data;
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int handle = pf_to_handle(pf);
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unsigned short char_code = p->_char_code;
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unsigned char tmp[2];
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if (handle > 0)
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lock_font_handle(handle, true);
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if (pf->file_width_offset)
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{
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int width_offset = pf->file_width_offset + char_code;
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@ -531,6 +618,9 @@ load_cache_entry(struct font_cache_entry* p, void* callback_data)
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lseek(pf->fd, file_offset, SEEK_SET);
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int src_bytes = glyph_bytes(pf, p->width);
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read(pf->fd, p->bitmap, src_bytes);
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if (handle > 0)
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lock_font_handle(handle, false);
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}
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/*
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@ -572,7 +662,7 @@ const unsigned char* font_get_bits(struct font* pf, unsigned short char_code)
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if (pf->fd >= 0 && pf != &sysfont)
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{
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bits =
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(unsigned char*)font_cache_get(&pf->cache,char_code,load_cache_entry,pf)->bitmap;
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(unsigned char*)font_cache_get(&pf->cache,char_code,load_cache_entry, pf)->bitmap;
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}
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else
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{
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@ -594,7 +684,8 @@ static int cache_fd;
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static void glyph_file_write(void* data)
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{
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struct font_cache_entry* p = data;
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struct font* pf = &font_ui;
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int handle = handle_for_glyphcache;
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struct font* pf = pf_from_handle(handle);
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unsigned short ch;
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unsigned char tmp[2];
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@ -617,9 +708,9 @@ static void glyph_file_write(void* data)
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/* save the char codes of the loaded glyphs to a file */
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void glyph_cache_save(struct font* pf)
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{
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if (!pf)
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pf = &font_ui;
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if (pf->fd >= 0 && pf == &font_ui)
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if (pf != pf_from_handle(handle_for_glyphcache))
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return;
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if (pf->fd >= 0)
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{
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cache_fd = open(GLYPH_CACHE_FILE, O_WRONLY|O_CREAT|O_TRUNC, 0666);
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if (cache_fd < 0)
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@ -675,9 +766,10 @@ static int ushortcmp(const void *a, const void *b)
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}
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static void glyph_cache_load(struct font* pf)
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{
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if (handle_for_glyphcache <= 0)
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return;
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#define MAX_SORT 256
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if (pf->fd >= 0) {
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if (pf->fd >= 0 && pf == pf_from_handle(handle_for_glyphcache)) {
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int fd;
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int i, size;
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unsigned char tmp[2];
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