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/*
* Copyright 2007-2008 Sun Microsystems, Inc. All Rights Reserved.
* 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 D3DGLYPHCACHE_H
#define D3DGLYPHCACHE_H
#include "AccelGlyphCache.h"
#include "D3DContext.h"
#include "D3DResourceManager.h"
typedef enum {
CACHE_GRAY,
CACHE_LCD
} GlyphCacheType;
class D3DContext;
class D3DResource;
class D3DGlyphCache {
public:
// creates accel. glyph cache if it wasn't created, and the glyph
// cache texure
HRESULT Init(D3DContext *pCtx);
// releases the glyph cache texture, invalidates the accel. glyph cache
void ReleaseDefPoolResources();
// releases texture and deletes the accel. glyph cache
~D3DGlyphCache();
// adds the glyph to the accel. glyph cache and uploads it into the glyph
// cache texture
HRESULT AddGlyph(GlyphInfo *glyph);
GlyphCacheInfo* GetGlyphCache() { return pGlyphCache; }
D3DResource* GetGlyphCacheTexture() { return pGlyphCacheRes; }
// Note: only applicable to CACHE_LCD type of the cache
// if the new rgb order doesn't match the current one, invalidates
// the accel. glyph cache, also resets the current tileFormat
HRESULT CheckGlyphCacheByteOrder(jboolean rgbOrder);
static
HRESULT CreateInstance(D3DContext *pCtx,
GlyphCacheType gcType,
D3DGlyphCache **ppGlyphCache);
private:
D3DGlyphCache(GlyphCacheType gcType);
D3DContext *pCtx;
GlyphCacheType gcType;
D3DResource *pGlyphCacheRes;
GlyphCacheInfo *pGlyphCache;
TileFormat tileFormat;
/**
* Relevant only for the CACHE_LCD cache type.
*
* This value tracks the previous LCD rgbOrder setting, so if the rgbOrder
* value has changed since the last time, it indicates that we need to
* invalidate the cache, which may already store glyph images in the
* reverse order. Note that in most real world applications this value
* will not change over the course of the application, but tests like
* Font2DTest allow for changing the ordering at runtime, so we need to
* handle that case.
*/
jboolean lastRGBOrder;
};
#endif // D3DGLYPHCACHE_H
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