Commit ebdce8344a089963635473c73cb7cbc967bc6a7e
2000-09-19T01:11:11
updated the cache sub-system. Major internal rewrite please be aware that major bug persist..
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diff --git a/src/cache/ftcache.c b/src/cache/ftcache.c
index cdd7899..913dba4 100644
--- a/src/cache/ftcache.c
+++ b/src/cache/ftcache.c
@@ -22,12 +22,14 @@
#include "ftlru.c"
#include "ftcmanag.c"
+#include "ftcglyph.c"
#include "ftcimage.c"
#else
#include <cache/ftlru.c>
#include <cache/ftcmanag.c>
+#include <cache/ftcglyph.c>
#include <cache/ftcimage.c>
#endif
diff --git a/src/cache/ftcglyph.c b/src/cache/ftcglyph.c
new file mode 100644
index 0000000..c7d7463
--- /dev/null
+++ b/src/cache/ftcglyph.c
@@ -0,0 +1,386 @@
+/***************************************************************************/
+/* */
+/* ftcglyph.c */
+/* */
+/* FreeType Glyph Image (FT_Glyph) cache.. */
+/* */
+/* Copyright 2000 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/* */
+/* Note: the implementation of glyph queues is rather generic in this */
+/* code. This will allow other glyph node/cache types to be */
+/* easily included in the future.. For now, we only cache */
+/* glyph images.. */
+/* */
+/***************************************************************************/
+
+
+#include <freetype/cache/ftcglyph.h>
+#include <freetype/fterrors.h>
+#include <freetype/internal/ftobjs.h>
+#include <freetype/internal/ftlist.h>
+#include <freetype/fterrors.h>
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** GLYPH NODES *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+/* in the future, we might provide a better scheme for managing */
+/* glyph node element. For the moment, we simply use FT_Alloc/FT_Free */
+
+ /* creates a new glyph node, setting its cache index and ref count */
+ FT_EXPORT_FUNC(void) FTC_GlyphNode_Init( FTC_GlyphNode node,
+ FTC_Glyph_Queue queue,
+ FT_UInt gindex )
+ {
+ FTC_Glyph_Cache cache = queue->cache;
+ FTC_CacheNode_Data* data = FTC_CACHENODE_TO_DATA_P( &node->root );
+
+ data->cache_index = (FT_UShort) cache->root.cache_index;
+ data->ref_count = (FT_Short) 0;
+ node->queue_index = (FT_UShort) queue->queue_index;
+ node->glyph_index = (FT_UShort) gindex;
+ }
+
+
+
+
+ /* Important: this function is called from the cache manager to */
+ /* destroy a given cache node during "cache compression". The */
+ /* second argument is always "cache.user_data". You thus be */
+ /* certain that the function FTC_Image_Cache_New does indeed */
+ /* set its "user_data" field correctly, otherwise bad things */
+ /* will happen !! */
+
+ FT_EXPORT_FUNC(void) FTC_GlyphNode_Destroy( FTC_GlyphNode node,
+ FTC_Glyph_Cache cache )
+ {
+ FT_LruNode queue_lru = cache->queues_lru->nodes+node->queue_index;
+ FTC_Glyph_Queue queue = (FTC_Glyph_Queue)queue_lru->root.data;
+ FT_UInt hash = node->glyph_index % queue->hash_size;
+ FT_List bucket = queue->buckets + hash;
+
+ /* remove node from its queue's bucket list */
+ FT_List_Remove( bucket, FTC_GLYPHNODE_TO_LISTNODE(node) );
+
+ /* destroy the node */
+ queue->clazz->destroy_node( node, queue );
+ }
+
+
+ /* Important: this function is called from the cache manager to */
+ /* size a given cache node during "cache compression". The */
+ /* second argument is always "cache.user_data". You thus be */
+ /* certain that the function FTC_Image_Cache_New does indeed */
+ /* set its "user_data" field correctly, otherwise bad things */
+ /* will happen !! */
+
+ FT_EXPORT_FUNC(FT_ULong) FTC_GlyphNode_Size( FTC_GlyphNode node,
+ FTC_Glyph_Cache cache )
+ {
+ FT_LruNode queue_lru = cache->queues_lru->nodes+node->queue_index;
+ FTC_Glyph_Queue queue = (FTC_Glyph_Queue)queue_lru->root.data;
+
+ return queue->clazz->size_node( node, queue );
+ }
+
+
+ FT_CPLUSPLUS(const FTC_CacheNode_Class) ftc_glyph_cache_node_class =
+ {
+ (FTC_CacheNode_SizeFunc) FTC_GlyphNode_Size,
+ (FTC_CacheNode_DestroyFunc) FTC_GlyphNode_Destroy
+ };
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** GLYPH QUEUES *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ FT_EXPORT_FUNC(FT_Error) FTC_Glyph_Queue_New(
+ FTC_Glyph_Cache cache,
+ FT_Pointer type,
+ FTC_Glyph_Queue* aqueue )
+ {
+ FT_Error error;
+ FT_Memory memory = cache->root.memory;
+ FTC_Manager manager = cache->root.manager;
+ FTC_Glyph_Queue queue = 0;
+
+ FTC_Glyph_Cache_Class* gcache_class;
+ FTC_Glyph_Queue_Class* clazz;
+
+ gcache_class = (FTC_Glyph_Cache_Class*)cache->root.clazz;
+ clazz = gcache_class->queue_class;
+
+ *aqueue = 0;
+
+ if ( ALLOC( queue, clazz->queue_byte_size ) )
+ goto Exit;
+
+ queue->cache = cache;
+ queue->manager = manager;
+ queue->memory = memory;
+ queue->hash_size = FTC_QUEUE_HASH_SIZE_DEFAULT;
+ queue->clazz = clazz;
+
+ /* allocate buckets table */
+ if ( ALLOC_ARRAY( queue->buckets, queue->hash_size, FT_ListRec ) )
+ if (error)
+ goto Exit;
+
+ /* initialize queue by type - if needed */
+ if (clazz->init)
+ {
+ error = clazz->init( queue, type );
+ if (error)
+ goto Exit;
+ }
+
+ *aqueue = queue;
+
+ Exit:
+ if ( error && queue )
+ {
+ FREE( queue->buckets );
+ FREE( queue );
+ }
+
+ return error;
+ }
+
+
+
+ FT_EXPORT_FUNC(void) FTC_Glyph_Queue_Done( FTC_Glyph_Queue queue )
+ {
+ FTC_Glyph_Cache cache = queue->cache;
+ FTC_Manager manager = cache->root.manager;
+ FT_List glyphs_lru = &manager->global_lru;
+ FT_List bucket = queue->buckets;
+ FT_List bucket_limit = bucket + queue->hash_size;
+ FT_Memory memory = cache->root.memory;
+
+ FTC_Glyph_Queue_Class* clazz = queue->clazz;
+
+ /* for each bucket, free the list of Glyph nodes */
+ for ( ; bucket < bucket_limit; bucket++ )
+ {
+ FT_ListNode node = bucket->head;
+ FT_ListNode next = 0;
+ FT_ListNode lrunode;
+ FTC_GlyphNode inode;
+
+
+ for ( ; node; node = next )
+ {
+ next = node->next;
+ inode = FTC_LISTNODE_TO_GLYPHNODE(node);
+ lrunode = FTC_GLYPHNODE_TO_LRUNODE( inode );
+
+ manager->num_bytes -= clazz->size_node( inode, queue );
+
+ FT_List_Remove( glyphs_lru, lrunode );
+
+ clazz->destroy_node( inode, queue );
+ }
+
+ bucket->head = bucket->tail = 0;
+ }
+
+ if (clazz->done)
+ clazz->done(queue);
+
+ FREE( queue->buckets );
+ FREE( queue );
+ }
+
+
+ FT_EXPORT_FUNC(FT_Error) FTC_Glyph_Queue_Lookup_Node(
+ FTC_Glyph_Queue queue,
+ FT_UInt glyph_index,
+ FTC_GlyphNode* anode )
+ {
+ FTC_Glyph_Cache cache = queue->cache;
+ FTC_Manager manager = cache->root.manager;
+ FT_UInt hash_index = glyph_index % queue->hash_size;
+ FT_List bucket = queue->buckets + hash_index;
+ FT_ListNode node;
+ FT_Error error;
+ FTC_GlyphNode inode;
+
+ FTC_Glyph_Queue_Class* clazz = queue->clazz;
+
+ *anode = 0;
+ for ( node = bucket->head; node; node = node->next )
+ {
+ FT_UInt gindex;
+
+ inode = FTC_LISTNODE_TO_GLYPHNODE(node);
+ gindex = inode->glyph_index;
+
+ if ( gindex == glyph_index )
+ {
+ /* we found it! -- move glyph to start of the lists */
+ FT_List_Up( bucket, node );
+ FT_List_Up( &manager->global_lru, FTC_GLYPHNODE_TO_LRUNODE( inode ) );
+ *anode = inode;
+ return 0;
+ }
+ }
+
+ /* we didn't found the glyph image, we will now create a new one */
+ error = clazz->new_node( queue, glyph_index, &inode );
+ if ( error )
+ goto Exit;
+
+ /* insert the node at the start of our bucket list */
+ FT_List_Insert( bucket, FTC_GLYPHNODE_TO_LISTNODE(inode) );
+
+ /* insert the node at the start the global LRU glyph list */
+ FT_List_Insert( &manager->global_lru, FTC_GLYPHNODE_TO_LRUNODE(inode) );
+
+ manager->num_bytes += clazz->size_node( inode, queue );
+
+ if (manager->num_bytes > manager->max_bytes)
+ FTC_Manager_Compress( manager );
+
+ *anode = inode;
+
+ Exit:
+ return error;
+ }
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** GLYPH QUEUES LRU CALLBACKS *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+
+#define FTC_QUEUE_LRU_GET_CACHE( lru ) \
+ ( (FTC_Glyph_Cache)(lru)->user_data )
+
+#define FTC_QUEUE_LRU_GET_MANAGER( lru ) \
+ FTC_QUEUE_LRU_GET_CACHE( lru )->manager
+
+#define FTC_LRUNODE_QUEUE( node ) \
+ ( (FTC_Glyph_Queue)(node)->root.data )
+
+
+ LOCAL_FUNC_X
+ FT_Error ftc_glyph_queue_lru_init( FT_Lru lru,
+ FT_LruNode node )
+ {
+ FTC_Glyph_Cache cache = FTC_QUEUE_LRU_GET_CACHE( lru );
+ FT_Error error;
+ FTC_Glyph_Queue queue;
+
+ error = FTC_Glyph_Queue_New( cache,
+ (FT_Pointer)node->key,
+ &queue );
+ if ( !error )
+ {
+ /* good, now set the queue index within the queue object */
+ queue->queue_index = node - lru->nodes;
+ node->root.data = queue;
+ }
+
+ return error;
+ }
+
+
+
+ LOCAL_FUNC_X
+ void ftc_glyph_queue_lru_done( FT_Lru lru,
+ FT_LruNode node )
+ {
+ FTC_Glyph_Queue queue = FTC_LRUNODE_QUEUE( node );
+
+ FT_UNUSED( lru );
+
+
+ FTC_Glyph_Queue_Done( queue );
+ }
+
+
+
+ LOCAL_FUNC_X
+ FT_Bool ftc_glyph_queue_lru_compare( FT_LruNode node,
+ FT_LruKey key )
+ {
+ FTC_Glyph_Queue queue = FTC_LRUNODE_QUEUE( node );
+ return queue->clazz->compare( queue, (FT_Pointer)key );
+ }
+
+
+
+ FT_CPLUSPLUS( const FT_Lru_Class ) ftc_glyph_queue_lru_class =
+ {
+ sizeof( FT_LruRec ),
+ ftc_glyph_queue_lru_init,
+ ftc_glyph_queue_lru_done,
+ 0, /* no flush */
+ ftc_glyph_queue_lru_compare
+ };
+
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** GLYPH IMAGE CACHE OBJECTS *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+
+ FT_EXPORT_FUNC(FT_Error) FTC_Glyph_Cache_Init( FTC_Glyph_Cache cache )
+ {
+ FT_Memory memory = cache->root.memory;
+ FT_Error error;
+
+ /* set up root node_class to be used by manager */
+ cache->root.node_clazz = (FTC_CacheNode_Class*)&ftc_glyph_cache_node_class;
+
+ /* The following is extremely important for ftc_destroy_glyph_image */
+ /* to work properly, as the second parameter that is sent to it */
+ /* through the cache manager is "user_data" and must be set to */
+ /* "cache" here.. */
+ /* */
+ cache->root.cache_user = cache;
+
+ error = FT_Lru_New( &ftc_glyph_queue_lru_class,
+ FTC_MAX_GLYPH_QUEUES,
+ cache,
+ memory,
+ 1, /* pre_alloc == TRUE */
+ &cache->queues_lru );
+ return error;
+ }
+
+
+ FT_EXPORT_FUNC(void) FTC_Glyph_Cache_Done( FTC_Glyph_Cache cache )
+ {
+ /* discard Glyph queues */
+ FT_Lru_Done( cache->queues_lru );
+ }
+
+
+
+/* END */
diff --git a/src/cache/ftcimage.c b/src/cache/ftcimage.c
index 5ea6ea3..5f044e0 100644
--- a/src/cache/ftcimage.c
+++ b/src/cache/ftcimage.c
@@ -1,146 +1,58 @@
-/***************************************************************************/
-/* */
-/* ftcimage.c */
-/* */
-/* FreeType Image Cache (body). */
-/* */
-/* Copyright 2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#include <cache/ftcimage.h>
-#include <freetype/fterrors.h>
-#include <freetype/internal/ftobjs.h>
-#include <freetype/internal/ftlist.h>
-#include <freetype/fterrors.h>
-
-
- /**************************************************************************/
- /**************************************************************************/
- /***** *****/
- /***** IMAGE NODE MANAGEMENT *****/
- /***** *****/
- /***** For now, we simply ALLOC/FREE the FTC_ImageNode. However, it *****/
- /***** certainly is a good idea to use a chunk manager in the future *****/
- /***** in order to reduce memory waste resp. fragmentation. *****/
- /***** *****/
- /**************************************************************************/
- /**************************************************************************/
+#ifdef FT_FLAT_COMPILE
+# include "ftcimage.h"
+#else
+# include <cache/ftcimage.h>
+#endif
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** GLYPH IMAGE NODES *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
-
- static
- FT_Error FTC_ImageNode_New( FTC_Image_Cache cache,
- FTC_ImageNode* anode )
- {
- FT_Error error;
- FT_Memory memory = cache->memory;
- FTC_ImageNode node;
-
-
- *anode = 0;
- if ( !ALLOC( node, sizeof ( *node ) ) )
- *anode = node;
-
- return error;
- }
-
-
- static
- void FTC_ImageNode_Done( FTC_Image_Cache cache,
- FTC_ImageNode node )
- {
- /* for now, we simply discard the node; we may later add a chunk */
- /* manager to the image cache. */
- FT_Memory memory = cache->memory;
-
-
- FREE( node );
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /***** *****/
- /***** GLYPH IMAGE QUEUES *****/
- /***** *****/
- /*************************************************************************/
- /*************************************************************************/
-
-
+ /* this is a simple glyph image destructor, which is called exclusively */
+ /* from the CacheQueue object */
LOCAL_FUNC_X
- void ftc_done_glyph_image( FTC_Image_Queue queue,
- FTC_ImageNode node )
+ void ftc_glyph_image_node_destroy( FTC_GlyphNode node,
+ FTC_Glyph_Queue queue )
{
- FT_UNUSED( queue );
-
- FT_Done_Glyph( FTC_IMAGENODE_GET_GLYPH( node ) );
- }
-
-
- LOCAL_FUNC_X
- FT_ULong ftc_size_bitmap_image( FTC_Image_Queue queue,
- FTC_ImageNode node )
- {
- FT_Long pitch;
- FT_BitmapGlyph glyph;
-
- FT_UNUSED( queue );
-
-
- glyph = (FT_BitmapGlyph)FTC_IMAGENODE_GET_GLYPH(node);
- pitch = glyph->bitmap.pitch;
- if ( pitch < 0 )
- pitch = -pitch;
-
- return (FT_ULong)(pitch * glyph->bitmap.rows + sizeof ( *glyph ) );
- }
-
-
- LOCAL_FUNC_X
- FT_ULong ftc_size_outline_image( FTC_Image_Queue queue,
- FTC_ImageNode node )
- {
- FT_OutlineGlyph glyph;
- FT_Outline* outline;
+ FT_Memory memory = queue->memory;
- FT_UNUSED( queue );
-
-
- glyph = (FT_OutlineGlyph)FTC_IMAGENODE_GET_GLYPH( node );
- outline = &glyph->outline;
-
- return (FT_ULong)(
- outline->n_points * ( sizeof ( FT_Vector ) + sizeof ( FT_Byte ) ) +
- outline->n_contours * sizeof ( FT_Short ) +
- sizeof( *glyph ) );
+ FT_Done_Glyph( FTC_GLYPHNODE_GET_GLYPH( node ) );
+ FREE( node );
}
LOCAL_FUNC_X
- FT_Error ftc_init_glyph_image( FTC_Image_Queue queue,
- FTC_ImageNode node )
+ FT_Error ftc_glyph_image_node_new( FTC_Glyph_Queue queue,
+ FT_UInt glyph_index,
+ FTC_GlyphNode *anode )
{
- FT_Face face;
- FT_Size size;
- FT_Error error;
+ FT_Memory memory = queue->memory;
+ FTC_Image_Queue imageq = (FTC_Image_Queue)queue;
+ FT_Error error;
+ FTC_GlyphNode node = 0;
+ FT_Face face;
+ FT_Size size;
+ /* allocate node */
+ if ( ALLOC( node, sizeof(*node) ) )
+ goto Exit;
+
+ /* init its inner fields */
+ FTC_GlyphNode_Init( node, queue, glyph_index );
+ /* we will now load the glyph image */
error = FTC_Manager_Lookup_Size( queue->manager,
- &queue->descriptor.size,
+ &imageq->description.font,
&face, &size );
if ( !error )
{
- FT_UInt glyph_index = FTC_IMAGENODE_GET_GINDEX( node );
+ FT_UInt glyph_index = node->glyph_index;
FT_UInt load_flags = FT_LOAD_DEFAULT;
- FT_UInt image_type = queue->descriptor.image_type;
+ FT_UInt image_type = imageq->description.image_type;
if ( FTC_IMAGE_FORMAT( image_type ) == ftc_image_format_bitmap )
{
@@ -179,372 +91,133 @@
error = FT_Get_Glyph( face->glyph, &glyph );
if ( !error )
- FTC_IMAGENODE_SET_GLYPH( node, glyph );
+ FTC_GLYPHNODE_SET_GLYPH( node, glyph );
}
else
error = FT_Err_Invalid_Argument;
}
}
- return error;
- }
-
-
- FT_CPLUSPLUS( const FTC_Image_Class ) ftc_bitmap_image_class =
- {
- ftc_init_glyph_image,
- ftc_done_glyph_image,
- ftc_size_bitmap_image
- };
-
- FT_CPLUSPLUS( const FTC_Image_Class ) ftc_outline_image_class =
- {
- ftc_init_glyph_image,
- ftc_done_glyph_image,
- ftc_size_outline_image
- };
-
-
- static
- FT_Error FTC_Image_Queue_New( FTC_Image_Cache cache,
- FTC_Image_Desc* desc,
- FTC_Image_Queue* aqueue )
- {
- FT_Error error;
- FT_Memory memory = cache->memory;
- FTC_Manager manager = cache->manager;
- FTC_Image_Queue queue = 0;
-
- const FTC_Image_Class* clazz;
-
-
- *aqueue = 0;
- if ( ALLOC( queue, sizeof ( *queue ) ) )
- goto Exit;
-
- queue->cache = cache;
- queue->manager = manager;
- queue->memory = memory;
- queue->descriptor = *desc;
- queue->hash_size = 64;
-
- if ( ALLOC_ARRAY( queue->buckets, queue->hash_size, FT_ListRec ) )
- goto Exit;
-
- switch ( FTC_IMAGE_FORMAT( desc->image_type ) )
- {
- case ftc_image_format_bitmap:
- clazz = &ftc_bitmap_image_class;
- break;
-
- case ftc_image_format_outline:
- clazz = &ftc_outline_image_class;
- break;
-
- default:
- /* invalid image type! */
- error = FT_Err_Invalid_Argument;
- goto Exit;
- }
-
- queue->clazz = (FTC_Image_Class*)clazz;
- *aqueue = queue;
-
Exit:
- if ( error )
- FREE( queue );
+ if (error && node)
+ FREE(node);
+ *anode = node;
return error;
- }
+ }
- static
- void FTC_Image_Queue_Done( FTC_Image_Queue queue )
+ /* this function is important, because it is both part of */
+ /* a FTC_Glyph_Queue_Class and a FTC_CacheNode_Class */
+ /* */
+ LOCAL_FUNC_X
+ FT_ULong ftc_glyph_image_node_size( FTC_GlyphNode node )
{
- FTC_Image_Cache cache = queue->cache;
- FT_List glyphs_lru = &cache->glyphs_lru;
- FT_List bucket = queue->buckets;
- FT_List bucket_limit = bucket + queue->hash_size;
- FT_Memory memory = cache->memory;
+ FT_ULong size = 0;
+ FT_Glyph glyph = FTC_GLYPHNODE_GET_GLYPH(node);
-
- /* for each bucket, free the list of image nodes */
- for ( ; bucket < bucket_limit; bucket++ )
+ switch (glyph->format)
{
- FT_ListNode node = bucket->head;
- FT_ListNode next = 0;
- FT_ListNode lrunode;
- FTC_ImageNode inode;
-
-
- for ( ; node; node = next )
- {
- next = node->next;
- inode = (FTC_ImageNode)node;
- lrunode = FTC_IMAGENODE_TO_LISTNODE( inode );
-
- cache->num_bytes -= queue->clazz->size_image( queue, inode ) +
- sizeof( FTC_ImageNodeRec );
+ case ft_glyph_format_bitmap:
+ {
+ FT_BitmapGlyph bitg;
+
+ bitg = (FT_BitmapGlyph)glyph;
+ size = bitg->bitmap.rows * labs(bitg->bitmap.pitch) +
+ sizeof(*bitg);
+ }
+ break;
- queue->clazz->done_image( queue, inode );
- FT_List_Remove( glyphs_lru, lrunode );
+ case ft_glyph_format_outline:
+ {
+ FT_OutlineGlyph outg;
+
+ outg = (FT_OutlineGlyph)glyph;
+ size = outg->outline.n_points *
+ ( sizeof( FT_Vector ) + sizeof( FT_Byte ) ) +
+ outg->outline.n_contours *
+ sizeof( FT_Short ) +
+ sizeof(*outg);
+ }
+ break;
- FTC_ImageNode_Done( cache, inode );
- }
-
- bucket->head = bucket->tail = 0;
- }
-
- FREE( queue->buckets );
- FREE( queue );
- }
-
-
- static
- FT_Error FTC_Image_Queue_Lookup_Node( FTC_Image_Queue queue,
- FT_UInt glyph_index,
- FTC_ImageNode* anode )
- {
- FTC_Image_Cache cache = queue->cache;
- FT_UInt hash_index = glyph_index % queue->hash_size;
- FT_List bucket = queue->buckets + hash_index;
- FT_ListNode node;
- FT_Error error;
- FTC_ImageNode inode;
-
-
- *anode = 0;
- for ( node = bucket->head; node; node = node->next )
- {
- FT_UInt gindex;
-
- inode = (FTC_ImageNode)node;
- gindex = FTC_IMAGENODE_GET_GINDEX( inode );
-
- if ( gindex == glyph_index )
- {
- /* we found it! -- move glyph to start of the list */
- FT_List_Up( bucket, node );
- FT_List_Up( &cache->glyphs_lru, FTC_IMAGENODE_TO_LISTNODE( inode ) );
- *anode = inode;
- return 0;
- }
- }
-
- /* we didn't found the glyph image, we will now create a new one */
- error = FTC_ImageNode_New( queue->cache, &inode );
- if ( error )
- goto Exit;
-
- /* set the glyph and queue indices in the image node */
- FTC_IMAGENODE_SET_INDICES( inode, glyph_index, queue->index );
-
- error = queue->clazz->init_image( queue, inode );
- if ( error )
- {
- FTC_ImageNode_Done( queue->cache, inode );
- goto Exit;
+ default:
+ ;
}
-
- /* insert the node at the start of our bucket list */
- FT_List_Insert( bucket, (FT_ListNode)inode );
-
- /* insert the node at the start the global LRU glyph list */
- FT_List_Insert( &cache->glyphs_lru, FTC_IMAGENODE_TO_LISTNODE( inode ) );
-
- cache->num_bytes += queue->clazz->size_image( queue, inode ) +
- sizeof( FTC_ImageNodeRec );
-
- *anode = inode;
-
- Exit:
- return error;
+ size += sizeof(*node);
+ return size;
}
-
- /*************************************************************************/
- /*************************************************************************/
- /***** *****/
- /***** IMAGE CACHE CALLBACKS *****/
- /***** *****/
- /*************************************************************************/
- /*************************************************************************/
-
-#define FTC_QUEUE_LRU_GET_CACHE( lru ) \
- ( (FTC_Image_Cache)(lru)->user_data )
-#define FTC_QUEUE_LRU_GET_MANAGER( lru ) \
- FTC_QUEUE_LRU_GET_CACHE( lru )->manager
-#define FTC_LRUNODE_QUEUE( node ) \
- ( (FTC_Image_Queue)(node)->root.data )
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** GLYPH IMAGE QUEUES *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
LOCAL_FUNC_X
- FT_Error ftc_image_cache_init_queue( FT_Lru lru,
- FT_LruNode node )
+ FT_Error ftc_image_queue_init( FTC_Image_Queue queue,
+ FTC_Image_Desc* type )
{
- FTC_Image_Cache cache = FTC_QUEUE_LRU_GET_CACHE( lru );
- FTC_Image_Desc* desc = (FTC_Image_Desc*)node->key;
- FT_Error error;
- FTC_Image_Queue queue;
-
-
- error = FTC_Image_Queue_New( cache, desc, &queue );
- if ( !error )
- {
- /* good, now set the queue index within the queue object */
- queue->index = node - lru->nodes;
- node->root.data = queue;
- }
-
- return error;
+ queue->description = *type;
+ return 0;
}
LOCAL_FUNC_X
- void ftc_image_cache_done_queue( FT_Lru lru,
- FT_LruNode node )
+ FT_Bool ftc_image_queue_compare( FTC_Image_Queue queue,
+ FTC_Image_Desc* type )
{
- FTC_Image_Queue queue = FTC_LRUNODE_QUEUE( node );
-
- FT_UNUSED( lru );
-
-
- FTC_Image_Queue_Done( queue );
+ return !memcmp( &queue->description, type, sizeof(*type) );
}
+
-
- LOCAL_FUNC_X
- FT_Bool ftc_image_cache_compare_queue( FT_LruNode node,
- FT_LruKey key )
+ FT_CPLUSPLUS(const FTC_Glyph_Queue_Class) ftc_glyph_image_queue_class =
{
- FTC_Image_Queue queue = FTC_LRUNODE_QUEUE( node );
- FTC_Image_Desc* desc2 = (FTC_Image_Desc*)key;
- FTC_Image_Desc* desc1 = &queue->descriptor;
+ sizeof( FTC_Image_QueueRec ),
-
- return ( desc1->size.face_id == desc2->size.face_id &&
- desc1->size.pix_width == desc2->size.pix_width &&
- desc1->size.pix_height == desc2->size.pix_height &&
- desc1->image_type == desc2->image_type );
- }
-
-
- FT_CPLUSPLUS( const FT_Lru_Class ) ftc_image_queue_lru_class =
- {
- sizeof( FT_LruRec ),
- ftc_image_cache_init_queue,
- ftc_image_cache_done_queue,
- 0, /* no flush */
- ftc_image_cache_compare_queue
+ (FTC_Glyph_Queue_InitFunc) ftc_image_queue_init,
+ (FTC_Glyph_Queue_DoneFunc) 0,
+ (FTC_Glyph_Queue_CompareFunc) ftc_image_queue_compare,
+
+ (FTC_Glyph_Queue_NewNodeFunc) ftc_glyph_image_node_new,
+ (FTC_Glyph_Queue_SizeNodeFunc) ftc_glyph_image_node_size,
+ (FTC_Glyph_Queue_DestroyNodeFunc) ftc_glyph_image_node_destroy
};
- /* compress image cache if necessary, i.e., discard all old glyph images */
- /* until `cache.num_bytes' is less than `cache.max_bytes'. Note that */
- /* this function will avoid to remove `new_node'. */
- static
- void FTC_Image_Cache_Compress( FTC_Image_Cache cache,
- FTC_ImageNode new_node )
- {
- while ( cache->num_bytes > cache->max_bytes )
- {
- FT_ListNode cur;
- FTC_Image_Queue queue;
- FT_UInt glyph_index;
- FT_UInt hash_index;
- FT_UInt queue_index;
- FT_ULong size;
- FTC_ImageNode inode;
-
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** GLYPH IMAGE CACHE *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
- /* exit our loop if there isn't any glyph image left, or if */
- /* we reached the newly created node (which happens always at the */
- /* start of the list) */
-
- cur = cache->glyphs_lru.tail;
- inode = FTC_LISTNODE_TO_IMAGENODE( cur );
- if ( !cur || inode == new_node )
- break;
-
- glyph_index = FTC_IMAGENODE_GET_GINDEX( inode );
- queue_index = FTC_IMAGENODE_GET_QINDEX( inode );
- queue = (FTC_Image_Queue)cache->queues_lru->
- nodes[queue_index].root.data;
- hash_index = glyph_index % queue->hash_size;
- size = queue->clazz->size_image( queue, inode ) +
- sizeof(FTC_ImageNodeRec);
-
- FT_List_Remove( &cache->glyphs_lru, cur );
- FT_List_Remove( queue->buckets + hash_index, (FT_ListNode)inode );
- queue->clazz->done_image( queue, inode );
- FTC_ImageNode_Done( cache, inode );
-
- cache->num_bytes -= size;
- }
- }
- FT_EXPORT_DEF( FT_Error ) FTC_Image_Cache_New( FTC_Manager manager,
- FT_ULong max_bytes,
- FTC_Image_Cache* acache )
+ FT_CPLUSPLUS(const FTC_Glyph_Cache_Class) ftc_glyph_image_cache_class =
{
- FT_Error error;
- FT_Memory memory;
- FTC_Image_Cache cache;
-
-
- if ( !manager )
- return FT_Err_Invalid_Cache_Handle;
-
- if ( !acache || !manager->library )
- return FT_Err_Invalid_Argument;
-
- *acache = 0;
- memory = manager->library->memory;
-
- if ( ALLOC( cache, sizeof ( *cache ) ) )
- goto Exit;
-
- cache->manager = manager;
- cache->memory = manager->library->memory;
- cache->max_bytes = max_bytes;
-
- error = FT_Lru_New( &ftc_image_queue_lru_class,
- FTC_MAX_IMAGE_QUEUES,
- cache,
- memory,
- 1, /* pre_alloc == TRUE */
- &cache->queues_lru );
- if ( error )
- goto Exit;
-
- *acache = cache;
-
- Exit:
- if ( error )
- FREE( cache );
-
- return error;
- }
+ {
+ sizeof( FTC_Glyph_CacheRec ),
+ (FTC_Cache_InitFunc) FTC_Glyph_Cache_Init,
+ (FTC_Cache_DoneFunc) FTC_Glyph_Cache_Done
+ },
+ (FTC_Glyph_Queue_Class*) &ftc_glyph_image_queue_class
+ };
- FT_EXPORT_DEF( void ) FTC_Image_Cache_Done( FTC_Image_Cache cache )
+ FT_EXPORT_FUNC( FT_Error ) FTC_Image_Cache_New( FTC_Manager manager,
+ FTC_Image_Cache* acache )
{
- FT_Memory memory;
-
-
- if ( !cache )
- return;
-
- memory = cache->memory;
-
- /* discard image queues */
- FT_Lru_Done( cache->queues_lru );
-
- /* discard cache */
- FREE( cache );
+ return FTC_Manager_Register_Cache(
+ manager,
+ (FTC_Cache_Class*)&ftc_glyph_image_cache_class,
+ (FTC_Cache*)acache );
}
-
+
FT_EXPORT_DEF( FT_Error ) FTC_Image_Cache_Lookup(
FTC_Image_Cache cache,
@@ -553,43 +226,47 @@
FT_Glyph* aglyph )
{
FT_Error error;
- FTC_Image_Queue queue;
- FTC_ImageNode inode;
+ FTC_Glyph_Queue queue;
+ FTC_GlyphNode inode;
+ FTC_Manager manager;
+ FTC_Image_Queue img_queue;
/* check for valid `desc' delayed to FT_Lru_Lookup() */
if ( !cache || !aglyph )
return FT_Err_Invalid_Argument;
- *aglyph = 0;
- queue = cache->last_queue;
- if ( !queue ||
- queue->descriptor.size.face_id != desc->size.face_id ||
- queue->descriptor.size.pix_width != desc->size.pix_width ||
- queue->descriptor.size.pix_height != desc->size.pix_height ||
- queue->descriptor.image_type != desc->image_type )
+ *aglyph = 0;
+ queue = cache->root.last_queue;
+ img_queue = (FTC_Image_Queue)queue;
+ if ( !queue || memcmp( &img_queue->description, desc, sizeof(*desc) ) )
{
- error = FT_Lru_Lookup( cache->queues_lru,
+ error = FT_Lru_Lookup( cache->root.queues_lru,
(FT_LruKey)desc,
(FT_Pointer*)&queue );
- cache->last_queue = queue;
+ cache->root.last_queue = queue;
if ( error )
goto Exit;
}
- error = FTC_Image_Queue_Lookup_Node( queue, gindex, &inode );
+ error = FTC_Glyph_Queue_Lookup_Node( queue, gindex, &inode );
if ( error )
goto Exit;
- if (cache->num_bytes > cache->max_bytes)
- FTC_Image_Cache_Compress( cache, inode );
+ /* now compress the manager's cache pool if needed */
+ manager = cache->root.root.manager;
+ if (manager->num_bytes > manager->max_bytes)
+ {
+ FTC_GlyphNode_Ref(inode);
+ FTC_Manager_Compress( manager );
+ FTC_GlyphNode_Unref(inode);
+ }
- *aglyph = FTC_IMAGENODE_GET_GLYPH( inode );
+ *aglyph = FTC_GLYPHNODE_GET_GLYPH( inode );
Exit:
return error;
}
-/* END */
diff --git a/src/cache/ftcimage.h b/src/cache/ftcimage.h
index 558a727..cf29d2a 100644
--- a/src/cache/ftcimage.h
+++ b/src/cache/ftcimage.h
@@ -1,137 +1,21 @@
-/***************************************************************************/
-/* */
-/* ftcimage.h */
-/* */
-/* FreeType Image Cache (specification). */
-/* */
-/* Copyright 2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
#ifndef FTCIMAGE_H
#define FTCIMAGE_H
-#include <cache/ftcmanag.h>
-#include <freetype/ftglyph.h>
-#include <stddef.h>
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-#define FTC_MAX_IMAGE_QUEUES 16
+#include <freetype/cache/ftcglyph.h>
- typedef struct FTC_Image_QueueRec_* FTC_Image_Queue;
- typedef struct FTC_ImageNodeRec_* FTC_ImageNode;
-
-
- /* macros used to pack a glyph index and a queue index in a single ptr */
-#define FTC_PTR_TO_GINDEX( p ) ( (FT_UInt)( (FT_ULong)(p) >> 16 ) )
-#define FTC_PTR_TO_QINDEX( p ) ( (FT_UInt)( (FT_ULong)(p) & 0xFFFF ) )
-#define FTC_INDICES_TO_PTR( g, q ) \
- ( (FT_Pointer)( ( (FT_ULong)(g) << 16 ) | \
- ( (FT_ULong)(q) & 0xFFFF) ) )
-
- typedef struct FTC_ImageNodeRec_
+ /* the glyph image queue type */
+ typedef struct FTC_Image_QueueRec_
{
- /* root1.data contains an FT_Glyph handle */
- FT_ListNodeRec root1;
-
- /* root2.data contains a glyph index + queue index */
- FT_ListNodeRec root2;
-
- } FTC_ImageNodeRec;
-
-
- /* macros to read/set the glyph & queue index in a FTC_ImageNode */
-#define FTC_IMAGENODE_GET_GINDEX( n ) FTC_PTR_TO_GINDEX( (n)->root2.data )
-#define FTC_IMAGENODE_GET_QINDEX( n ) FTC_PTR_TO_QINDEX( (n)->root2.data )
-#define FTC_IMAGENODE_GET_GLYPH( n ) ( (FT_Glyph)(n)->root1.data )
-#define FTC_IMAGENODE_SET_GLYPH( n, g ) \
- do \
- { \
- (n)->root1.data = g; \
- } while ( 0 )
-
-#define FTC_IMAGENODE_SET_INDICES( n, g, q ) \
- do \
- { \
- (n)->root2.data = FTC_INDICES_TO_PTR( g, q ); \
- } while ( 0 )
-
-
- /* this macro is used to extract a handle to the global LRU list node */
- /* corresponding to a given image node */
-#define FTC_IMAGENODE_TO_LISTNODE( n ) \
- ( (FT_ListNode)&(n)->root2 )
-
- /* this macro is used to extract a handle to a given image node from */
- /* the corresponding LRU glyph list node. That's a bit hackish.. */
-#define FTC_LISTNODE_TO_IMAGENODE( p ) \
- ( (FTC_ImageNode)( (char*)(p) - \
- offsetof( FTC_ImageNodeRec,root2 ) ) )
-
+ FTC_Glyph_QueueRec root;
+ FTC_Image_Desc description;
+
+ } FTC_Image_QueueRec, *FTC_Image_Queue;
- typedef struct FTC_Image_CacheRec_
+ typedef struct FTC_Image_CacheRec_
{
- FTC_Manager manager;
- FT_Memory memory;
-
- FT_ULong max_bytes; /* maximum size of cache in bytes */
- FT_ULong num_bytes; /* current size of cache in bytes */
+ FTC_Glyph_CacheRec root;
- FT_Lru queues_lru; /* static queues lru list */
- FT_ListRec glyphs_lru; /* global lru list of glyph images */
-
- FTC_Image_Queue last_queue; /* small cache */
-
} FTC_Image_CacheRec;
-
- /* a table of functions used to generate/manager glyph images */
- typedef struct FTC_Image_Class_
- {
- FT_Error (*init_image)( FTC_Image_Queue queue,
- FTC_ImageNode node );
-
- void (*done_image)( FTC_Image_Queue queue,
- FTC_ImageNode node );
-
- FT_ULong (*size_image)( FTC_Image_Queue queue,
- FTC_ImageNode node );
-
- } FTC_Image_Class;
-
-
- typedef struct FTC_Image_QueueRec_
- {
- FTC_Image_Cache cache;
- FTC_Manager manager;
- FT_Memory memory;
- FTC_Image_Class* clazz;
- FTC_Image_Desc descriptor;
- FT_UInt hash_size;
- FT_List buckets;
- FT_UInt index; /* index in parent cache */
-
- } FTC_Image_QueueRec;
-
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
#endif /* FTCIMAGE_H */
-
-/* END */
diff --git a/src/cache/ftcmanag.c b/src/cache/ftcmanag.c
index a30579f..97630d1 100644
--- a/src/cache/ftcmanag.c
+++ b/src/cache/ftcmanag.c
@@ -16,9 +16,13 @@
/***************************************************************************/
-#include <cache/ftcmanag.h>
+#include <freetype/cache/ftcmanag.h>
#include <freetype/internal/ftobjs.h>
+#include <freetype/internal/ftdebug.h>
+#include <freetype/ftlist.h>
+#undef FT_COMPONENT
+#define FT_COMPONENT trace_cache
#define FTC_LRU_GET_MANAGER( lru ) (FTC_Manager)lru->user_data
@@ -38,6 +42,7 @@
{
FTC_Manager manager = FTC_LRU_GET_MANAGER( lru );
FT_Error error;
+ FT_Face face;
error = manager->request_face( (FTC_FaceID)node->key,
@@ -47,9 +52,7 @@
if ( !error )
{
/* destroy initial size object; it will be re-created later */
- FT_Face face = (FT_Face)node->root.data;
-
-
+ face = (FT_Face)node->root.data;
FT_Done_Size( face->size );
}
@@ -89,23 +92,23 @@
}
- typedef struct FTC_SizeRequest_
+ typedef struct FTC_FontRequest_
{
FT_Face face;
FT_UShort width;
FT_UShort height;
- } FTC_SizeRequest;
+ } FTC_FontRequest;
LOCAL_FUNC_X
FT_Error ftc_manager_init_size( FT_Lru lru,
FT_LruNode node )
{
- FTC_SizeRequest* size_req = (FTC_SizeRequest*)node->key;
+ FTC_FontRequest* font_req = (FTC_FontRequest*)node->key;
FT_Size size;
FT_Error error;
- FT_Face face = size_req->face;
+ FT_Face face = font_req->face;
FT_UNUSED( lru );
@@ -116,8 +119,8 @@
{
face->size = size;
error = FT_Set_Pixel_Sizes( face,
- size_req->width,
- size_req->height );
+ font_req->width,
+ font_req->height );
if ( error )
FT_Done_Size( size );
else
@@ -142,7 +145,7 @@
FT_LruNode node,
FT_LruKey key )
{
- FTC_SizeRequest* req = (FTC_SizeRequest*)key;
+ FTC_FontRequest* req = (FTC_FontRequest*)key;
FT_Size size = (FT_Size)node->root.data;
FT_Error error;
@@ -168,7 +171,7 @@
FT_Bool ftc_manager_compare_size( FT_LruNode node,
FT_LruKey key )
{
- FTC_SizeRequest* req = (FTC_SizeRequest*)key;
+ FTC_FontRequest* req = (FTC_FontRequest*)key;
FT_Size size = (FT_Size)node->root.data;
FT_UNUSED( node );
@@ -203,6 +206,7 @@
FT_EXPORT_FUNC( FT_Error ) FTC_Manager_New( FT_Library library,
FT_UInt max_faces,
FT_UInt max_sizes,
+ FT_ULong max_bytes,
FTC_Face_Requester requester,
FT_Pointer req_data,
FTC_Manager* amanager )
@@ -221,10 +225,13 @@
goto Exit;
if ( max_faces == 0 )
- max_faces = FTC_MAX_FACES;
+ max_faces = FTC_MAX_FACES_DEFAULT;
if ( max_sizes == 0 )
- max_sizes = FTC_MAX_SIZES;
+ max_sizes = FTC_MAX_SIZES_DEFAULT;
+
+ if ( max_bytes == 0 )
+ max_bytes = FTC_MAX_BYTES_DEFAULT;
error = FT_Lru_New( &ftc_face_lru_class,
max_faces,
@@ -245,6 +252,7 @@
goto Exit;
manager->library = library;
+ manager->max_bytes = max_bytes;
manager->request_face = requester;
manager->request_data = req_data;
*amanager = manager;
@@ -264,6 +272,7 @@
FT_EXPORT_DEF( void ) FTC_Manager_Done( FTC_Manager manager )
{
FT_Memory memory;
+ FT_UInt index;
if ( !manager || !manager->library )
@@ -271,19 +280,35 @@
memory = manager->library->memory;
+ /* now discard all caches */
+ for (index = 0; index < FTC_MAX_CACHES; index++ )
+ {
+ FTC_Cache cache = manager->caches[index];
+
+
+ if (cache)
+ {
+ cache->clazz->done_cache( cache );
+ FREE(cache);
+ manager->caches[index] = 0;
+ }
+ }
+
+ /* discard faces and sizes */
FT_Lru_Done( manager->sizes_lru );
FT_Lru_Done( manager->faces_lru );
+
FREE( manager );
}
FT_EXPORT_DEF( void ) FTC_Manager_Reset( FTC_Manager manager )
{
- if ( !manager )
- return;
-
- FT_Lru_Reset( manager->sizes_lru );
- FT_Lru_Reset( manager->faces_lru );
+ if (manager )
+ {
+ FT_Lru_Reset( manager->sizes_lru );
+ FT_Lru_Reset( manager->faces_lru );
+ }
}
@@ -298,14 +323,14 @@
(FT_LruKey)face_id,
(FT_Pointer*)aface );
}
-
-
+
+
FT_EXPORT_DEF( FT_Error ) FTC_Manager_Lookup_Size( FTC_Manager manager,
- FTC_SizeID size_id,
+ FTC_Font font,
FT_Face* aface,
FT_Size* asize )
{
- FTC_SizeRequest req;
+ FTC_FontRequest req;
FT_Error error;
FT_Face face;
@@ -318,15 +343,15 @@
if ( asize )
*asize = 0;
- error = FTC_Manager_Lookup_Face( manager, size_id->face_id, &face );
+ error = FTC_Manager_Lookup_Face( manager, font->face_id, &face );
if ( !error )
{
FT_Size size;
req.face = face;
- req.width = size_id->pix_width;
- req.height = size_id->pix_height;
+ req.width = font->pix_width;
+ req.height = font->pix_height;
error = FT_Lru_Lookup( manager->sizes_lru,
(FT_LruKey)&req,
@@ -348,4 +373,98 @@
}
+ /* "compress" the manager's data, i.e. get rids of old cache nodes */
+ /* that are not referenced anymore in order to limit the total */
+ /* memory used by the cache.. */
+ FT_EXPORT_FUNC(void) FTC_Manager_Compress( FTC_Manager manager )
+ {
+ FT_ListNode node;
+
+ node = manager->global_lru.tail;
+ while (manager->num_bytes > manager->max_bytes && node)
+ {
+ FTC_CacheNode cache_node = FTC_LIST_TO_CACHENODE(node);
+ FTC_CacheNode_Data* data = FTC_CACHENODE_TO_DATA_P(cache_node);
+ FTC_Cache cache;
+ FT_ListNode prev = node->prev;
+
+ if (data->ref_count <= 0)
+ {
+ /* ok, we're going to remove this node */
+ FT_List_Remove( &manager->global_lru, node );
+
+ /* finalize cache node */
+ cache = manager->caches[data->cache_index];
+ if (cache)
+ {
+ FTC_CacheNode_Class* clazz = cache->node_clazz;
+
+ manager->num_bytes -= clazz->size_node( cache_node,
+ cache->cache_user );
+
+ clazz->destroy_node( cache_node, cache->cache_user );
+ }
+ else
+ {
+ /* this should never happen !! */
+ FT_ERROR(( "FTC_Manager_Compress: Cache Manager is corrupted !!\n" ));
+ }
+ }
+ node = prev;
+ }
+ }
+
+
+ FT_EXPORT_DEF( FT_Error ) FTC_Manager_Register_Cache(
+ FTC_Manager manager,
+ FTC_Cache_Class* clazz,
+ FTC_Cache *acache )
+ {
+ FT_Error error = FT_Err_Invalid_Argument;
+
+
+ if ( manager && clazz && acache )
+ {
+ FT_Memory memory = manager->library->memory;
+ FTC_Cache cache;
+ FT_UInt index = 0;
+
+ /* by default, return 0 */
+ *acache = 0;
+
+ /* check for an empty cache slot in the manager's table */
+ for ( index = 0; index < FTC_MAX_CACHES; index++ )
+ {
+ if ( manager->caches[index] == 0 )
+ break;
+ }
+
+ /* return an error if there are too many registered caches */
+ if (index >= FTC_MAX_CACHES)
+ {
+ error = FT_Err_Too_Many_Caches;
+ FT_ERROR(( "FTC_Manager_Register_Cache:" ));
+ FT_ERROR(( " too many registered caches..\n" ));
+ goto Exit;
+ }
+
+ if ( !ALLOC( cache, clazz->cache_byte_size ) )
+ {
+ cache->manager = manager;
+ cache->memory = memory;
+ cache->clazz = clazz;
+
+ if (clazz->init_cache)
+ error = clazz->init_cache( cache );
+
+ if (error)
+ FREE(cache);
+ else
+ manager->caches[index] = *acache = cache;
+ }
+ }
+ Exit:
+ return error;
+ }
+
/* END */
diff --git a/src/cache/ftlru.c b/src/cache/ftlru.c
index 288dd41..4b91299 100644
--- a/src/cache/ftlru.c
+++ b/src/cache/ftlru.c
@@ -16,7 +16,7 @@
/***************************************************************************/
-#include <cache/ftlru.h>
+#include <freetype/cache/ftlru.h>
#include <freetype/internal/ftobjs.h>
#include <freetype/internal/ftlist.h>
diff --git a/src/cache/rules.mk b/src/cache/rules.mk
index a6b6801..8cdf1f6 100644
--- a/src/cache/rules.mk
+++ b/src/cache/rules.mk
@@ -15,9 +15,11 @@
# Cache driver directory
#
-Cache_DIR := $(SRC_)cache
-Cache_DIR_ := $(Cache_DIR)$(SEP)
+CACHE_DIR := $(SRC_)cache
+CACHE_DIR_ := $(CACHE_DIR)$(SEP)
+CACHE_H_DIR := $(PUBLIC_)cache
+CACHE_H_DIR_ := $(CACHE_H_DIR)$(SEP)
# compilation flags for the driver
#
@@ -26,13 +28,17 @@ Cache_COMPILE := $(FT_COMPILE)
# Cache driver sources (i.e., C files)
#
-Cache_DRV_SRC := $(Cache_DIR_)ftlru.c \
- $(Cache_DIR_)ftcmanag.c \
- $(Cache_DIR_)ftcimage.c
+Cache_DRV_SRC := $(CACHE_DIR_)ftlru.c \
+ $(CACHE_DIR_)ftcmanag.c \
+ $(CACHE_DIR_)ftcglyph.c \
+ $(CACHE_DIR_)ftcimage.c
# Cache driver headers
#
-Cache_DRV_H := $(Cache_DRV_SRC:%c=%h)
+Cache_DRV_H := $(CACHE_H_DIR_)ftlru.h \
+ $(CACHE_H_DIR_)ftcmanag.h \
+ $(CACHE_H_DIR_)ftcglyph.h \
+ $(CACHE_DIR_)ftcimage.h
# Cache driver object(s)
@@ -40,12 +46,12 @@ Cache_DRV_H := $(Cache_DRV_SRC:%c=%h)
# Cache_DRV_OBJ_M is used during `multi' builds.
# Cache_DRV_OBJ_S is used during `single' builds.
#
-Cache_DRV_OBJ_M := $(Cache_DRV_SRC:$(Cache_DIR_)%.c=$(OBJ_)%.$O)
+Cache_DRV_OBJ_M := $(Cache_DRV_SRC:$(CACHE_DIR_)%.c=$(OBJ_)%.$O)
Cache_DRV_OBJ_S := $(OBJ_)ftcache.$O
# Cache driver source file for single build
#
-Cache_DRV_SRC_S := $(Cache_DIR_)ftcache.c
+Cache_DRV_SRC_S := $(CACHE_DIR_)ftcache.c
# Cache driver - single object
@@ -57,7 +63,7 @@ $(Cache_DRV_OBJ_S): $(Cache_DRV_SRC_S) $(Cache_DRV_SRC) \
# Cache driver - multiple objects
#
-$(OBJ_)%.$O: $(Cache_DIR_)%.c $(FREETYPE_H) $(Cache_DRV_H)
+$(OBJ_)%.$O: $(CACHE_DIR_)%.c $(FREETYPE_H) $(Cache_DRV_H)
$(Cache_COMPILE) $T$@ $<