text: /*
   * 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);
  
  HRESULT D3DTR_DrawGlyphList(D3DContext *d3dc, D3DSDOps *dstOps,
                              jint totalGlyphs, jboolean usePositions,
                              jboolean subPixPos, jboolean rgbOrder,
                              jint lcdContrast,
                              jfloat glyphListOrigX, jfloat glyphListOrigY,
                              unsigned char *images, unsigned char *positions);
  
  #endif /* D3DTextRenderer_h_Included */
  