/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

#ifndef AccelGlyphCache_h_Included

#define AccelGlyphCache_h_Included

#ifdef __cplusplus

extern "C" {

#endif

#include "jni.h"

#include "fontscalerdefs.h"

typedef void (FlushFunc)();

typedef struct _CacheCellInfo CacheCellInfo;

typedef struct {

    CacheCellInfo *head;

    CacheCellInfo *tail;

    unsigned int  cacheID;

    jint          width;

    jint          height;

    jint          cellWidth;

    jint          cellHeight;

    jboolean      isFull;

    FlushFunc     *Flush;

} GlyphCacheInfo;

struct _CacheCellInfo {

    GlyphCacheInfo   *cacheInfo;

    struct GlyphInfo *glyphInfo;

    // next cell info in the cache's list

    CacheCellInfo    *next;

    // REMIND: find better name?

    // next cell info in the glyph's cell list (next Glyph Cache Info)

    CacheCellInfo    *nextGCI;

    jint             timesRendered;

    jint             x;

    jint             y;

    // number of pixels from the left or right edge not considered touched

    // by the glyph

    jint             leftOff;

    jint             rightOff;

    jfloat           tx1;

    jfloat           ty1;

    jfloat           tx2;

    jfloat           ty2;

};

GlyphCacheInfo *

AccelGlyphCache_Init(jint width, jint height,

                     jint cellWidth, jint cellHeight,

                     FlushFunc *func);

CacheCellInfo *

AccelGlyphCache_AddGlyph(GlyphCacheInfo *cache, struct GlyphInfo *glyph);

void

AccelGlyphCache_Invalidate(GlyphCacheInfo *cache);

void

AccelGlyphCache_AddCellInfo(struct GlyphInfo *glyph, CacheCellInfo *cellInfo);

void

AccelGlyphCache_RemoveCellInfo(struct GlyphInfo *glyph, CacheCellInfo *cellInfo);

CacheCellInfo *

AccelGlyphCache_GetCellInfoForCache(struct GlyphInfo *glyph,

                                    GlyphCacheInfo *cache);

JNIEXPORT void

AccelGlyphCache_RemoveAllCellInfos(struct GlyphInfo *glyph);

void

AccelGlyphCache_Free(GlyphCacheInfo *cache);

#ifdef __cplusplus

};

#endif

#endif /* AccelGlyphCache_h_Included */