/*
* Copyright (c) 2007, 2008, Oracle and/or its affiliates. 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#ifndef D3DTextRenderer_h_Included
#define D3DTextRenderer_h_Included
#include <jni.h>
#include <jlong.h>
#include "sun_java2d_pipe_BufferedTextPipe.h"
#include "AccelGlyphCache.h"
#include "D3DContext.h"
#include "D3DSurfaceData.h"
/**
* The following constants define the inner and outer bounds of the
* accelerated glyph cache.
*/
#define D3DTR_CACHE_WIDTH 512
#define D3DTR_CACHE_HEIGHT 512
#define D3DTR_CACHE_CELL_WIDTH 16
#define D3DTR_CACHE_CELL_HEIGHT 16
/**
* This constant defines the size of the tile to use in the
* D3DTR_DrawLCDGlyphNoCache() method. See below for more on why we
* restrict this value to a particular size.
*/
#define D3DTR_NOCACHE_TILE_SIZE 32
/**
* These constants define the size of the "cached destination" texture.
* This texture is only used when rendering LCD-optimized text, as that
* codepath needs direct access to the destination. There is no way to
* access the framebuffer directly from a Direct3D shader, so we need to first
* copy the destination region corresponding to a particular glyph into
* this cached texture, and then that texture will be accessed inside the
* shader. Copying the destination into this cached texture can be a very
* expensive operation (accounting for about half the rendering time for
* LCD text), so to mitigate this cost we try to bulk read a horizontal
* region of the destination at a time. (These values are empirically
* derived for the common case where text runs horizontally.)
*
* Note: It is assumed in various calculations below that:
* (D3DTR_CACHED_DEST_WIDTH >= D3DTR_CACHE_CELL_WIDTH) &&
* (D3DTR_CACHED_DEST_WIDTH >= D3DTR_NOCACHE_TILE_SIZE) &&
* (D3DTR_CACHED_DEST_HEIGHT >= D3DTR_CACHE_CELL_HEIGHT) &&
* (D3DTR_CACHED_DEST_HEIGHT >= D3DTR_NOCACHE_TILE_SIZE)
*/
#define D3DTR_CACHED_DEST_WIDTH 512
#define D3DTR_CACHED_DEST_HEIGHT 32
#define BYTES_PER_GLYPH_IMAGE \
sun_java2d_pipe_BufferedTextPipe_BYTES_PER_GLYPH_IMAGE
#define BYTES_PER_GLYPH_POSITION \
sun_java2d_pipe_BufferedTextPipe_BYTES_PER_GLYPH_POSITION
#define BYTES_PER_POSITIONED_GLYPH \
(BYTES_PER_GLYPH_IMAGE + BYTES_PER_GLYPH_POSITION)
#define OFFSET_CONTRAST sun_java2d_pipe_BufferedTextPipe_OFFSET_CONTRAST
#define OFFSET_RGBORDER sun_java2d_pipe_BufferedTextPipe_OFFSET_RGBORDER
#define OFFSET_SUBPIXPOS sun_java2d_pipe_BufferedTextPipe_OFFSET_SUBPIXPOS
#define OFFSET_POSITIONS sun_java2d_pipe_BufferedTextPipe_OFFSET_POSITIONS
HRESULT D3DTR_EnableGlyphVertexCache(D3DContext *d3dc);
HRESULT D3DTR_DisableGlyphVertexCache(D3DContext *d3dc);
/**代码未完, 请加载全部代码(NowJava.com).**/