1 /*
   2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #ifndef MTLVertexCache_h_Included
  27 #define MTLVertexCache_h_Included
  28 
  29 #include "j2d_md.h"
  30 #include "MTLContext.h"
  31 
  32 /**
  33  * Constants that control the size of the vertex cache.
  34  */
  35 #define MTLVC_MAX_INDEX         1024
  36 
  37 /**
  38  * Constants that control the size of the texture tile cache used for
  39  * mask operations.
  40  */
  41 #define MTLVC_MASK_CACHE_TILE_WIDTH       32
  42 #define MTLVC_MASK_CACHE_TILE_HEIGHT      32
  43 #define MTLVC_MASK_CACHE_TILE_SIZE \
  44    (MTLVC_MASK_CACHE_TILE_WIDTH * MTLVC_MASK_CACHE_TILE_HEIGHT)
  45 
  46 #define MTLVC_MASK_CACHE_WIDTH_IN_TILES   8
  47 #define MTLVC_MASK_CACHE_HEIGHT_IN_TILES  4
  48 
  49 #define MTLVC_MASK_CACHE_WIDTH_IN_TEXELS \
  50    (MTLVC_MASK_CACHE_TILE_WIDTH * MTLVC_MASK_CACHE_WIDTH_IN_TILES)
  51 #define MTLVC_MASK_CACHE_HEIGHT_IN_TEXELS \
  52    (MTLVC_MASK_CACHE_TILE_HEIGHT * MTLVC_MASK_CACHE_HEIGHT_IN_TILES)
  53 
  54 /*
  55  * We reserve one (fully opaque) tile in the upper-right corner for
  56  * operations where the mask is null.
  57  */
  58 #define MTLVC_MASK_CACHE_MAX_INDEX \
  59    ((MTLVC_MASK_CACHE_WIDTH_IN_TILES * MTLVC_MASK_CACHE_HEIGHT_IN_TILES) - 1)
  60 #define MTLVC_MASK_CACHE_SPECIAL_TILE_X \
  61    (MTLVC_MASK_CACHE_WIDTH_IN_TEXELS - MTLVC_MASK_CACHE_TILE_WIDTH)
  62 #define MTLVC_MASK_CACHE_SPECIAL_TILE_Y \
  63    (MTLVC_MASK_CACHE_HEIGHT_IN_TEXELS - MTLVC_MASK_CACHE_TILE_HEIGHT)
  64 
  65 /**
  66  * Exported methods.
  67  */
  68 jboolean MTLVertexCache_InitVertexCache(MTLContext *mtlc);
  69 void MTLVertexCache_FlushVertexCache();
  70 void MTLVertexCache_RestoreColorState(MTLContext *mtlc);
  71 
  72 void MTLVertexCache_EnableMaskCache(MTLContext *mtlc);
  73 void MTLVertexCache_DisableMaskCache(MTLContext *mtlc);
  74 void MTLVertexCache_AddMaskQuad(MTLContext *mtlc,
  75                                 jint srcx, jint srcy,
  76                                 jint dstx, jint dsty,
  77                                 jint width, jint height,
  78                                 jint maskscan, void *mask);
  79 
  80 void MTLVertexCache_AddGlyphQuad(MTLContext *mtlc,
  81                                  jfloat tx1, jfloat ty1,
  82                                  jfloat tx2, jfloat ty2,
  83                                  jfloat dx1, jfloat dy1,
  84                                  jfloat dx2, jfloat dy2);
  85 
  86 #endif /* MTLVertexCache_h_Included */