hw/cirrus_vga_rop.h

   1 /*
   2  * QEMU Cirrus CLGD 54xx VGA Emulator.
   3  *
   4  * Copyright (c) 2004 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 static void
  26 glue(cirrus_bitblt_rop_fwd_, ROP_NAME)(CirrusVGAState *s,
  27                              uint8_t *dst,const uint8_t *src,
  28                              int dstpitch,int srcpitch,
  29                              int bltwidth,int bltheight)
  30 {
  31     int x,y;
  32     dstpitch -= bltwidth;
  33     srcpitch -= bltwidth;
  34     for (y = 0; y < bltheight; y++) {
  35         for (x = 0; x < bltwidth; x++) {
  36             ROP_OP(*dst, *src);
  37             dst++;
  38             src++;
  39         }
  40         dst += dstpitch;
  41         src += srcpitch;
  42     }
  43 }
  44
  45 static void
  46 glue(cirrus_bitblt_rop_bkwd_, ROP_NAME)(CirrusVGAState *s,
  47                                         uint8_t *dst,const uint8_t *src,
  48                                         int dstpitch,int srcpitch,
  49                                         int bltwidth,int bltheight)
  50 {
  51     int x,y;
  52     dstpitch += bltwidth;
  53     srcpitch += bltwidth;
  54     for (y = 0; y < bltheight; y++) {
  55         for (x = 0; x < bltwidth; x++) {
  56             ROP_OP(*dst, *src);
  57             dst--;
  58             src--;
  59         }
  60         dst += dstpitch;
  61         src += srcpitch;
  62     }
  63 }
  64
  65 #define DEPTH 8
  66 #include "cirrus_vga_rop2.h"
  67
  68 #define DEPTH 16
  69 #include "cirrus_vga_rop2.h"
  70
  71 #define DEPTH 24
  72 #include "cirrus_vga_rop2.h"
  73
  74 #define DEPTH 32
  75 #include "cirrus_vga_rop2.h"
  76
  77 #undef ROP_NAME
  78 #undef ROP_OP