hw/display/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 inline void glue(rop_8_,ROP_NAME)(uint8_t *dst, uint8_t src)
  26 {
  27     *dst = ROP_FN(*dst, src);
  28 }
  29
  30 static inline void glue(rop_16_,ROP_NAME)(uint16_t *dst, uint16_t src)
  31 {
  32     *dst = ROP_FN(*dst, src);
  33 }
  34
  35 static inline void glue(rop_32_,ROP_NAME)(uint32_t *dst, uint32_t src)
  36 {
  37     *dst = ROP_FN(*dst, src);
  38 }
  39
  40 #define ROP_OP(d, s) glue(rop_8_,ROP_NAME)(d, s)
  41 #define ROP_OP_16(d, s) glue(rop_16_,ROP_NAME)(d, s)
  42 #define ROP_OP_32(d, s) glue(rop_32_,ROP_NAME)(d, s)
  43 #undef ROP_FN
  44
  45 static void
  46 glue(cirrus_bitblt_rop_fwd_, 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
  55     if (bltheight > 1 && (dstpitch < 0 || srcpitch < 0)) {
  56         return;
  57     }
  58
  59     for (y = 0; y < bltheight; y++) {
  60         for (x = 0; x < bltwidth; x++) {
  61             ROP_OP(dst, *src);
  62             dst++;
  63             src++;
  64         }
  65         dst += dstpitch;
  66         src += srcpitch;
  67     }
  68 }
  69
  70 static void
  71 glue(cirrus_bitblt_rop_bkwd_, ROP_NAME)(CirrusVGAState *s,
  72                                         uint8_t *dst,const uint8_t *src,
  73                                         int dstpitch,int srcpitch,
  74                                         int bltwidth,int bltheight)
  75 {
  76     int x,y;
  77     dstpitch += bltwidth;
  78     srcpitch += bltwidth;
  79     for (y = 0; y < bltheight; y++) {
  80         for (x = 0; x < bltwidth; x++) {
  81             ROP_OP(dst, *src);
  82             dst--;
  83             src--;
  84         }
  85         dst += dstpitch;
  86         src += srcpitch;
  87     }
  88 }
  89
  90 static void
  91 glue(glue(cirrus_bitblt_rop_fwd_transp_, ROP_NAME),_8)(CirrusVGAState *s,
  92                                                        uint8_t *dst,const uint8_t *src,
  93                                                        int dstpitch,int srcpitch,
  94                                                        int bltwidth,int bltheight)
  95 {
  96     int x,y;
  97     uint8_t p;
  98     dstpitch -= bltwidth;
  99     srcpitch -= bltwidth;
 100
 101     if (bltheight > 1 && (dstpitch < 0 || srcpitch < 0)) {
 102         return;
 103     }
 104
 105     for (y = 0; y < bltheight; y++) {
 106         for (x = 0; x < bltwidth; x++) {
 107             p = *dst;
 108             ROP_OP(&p, *src);
 109             if (p != s->vga.gr[0x34]) *dst = p;
 110             dst++;
 111             src++;
 112         }
 113         dst += dstpitch;
 114         src += srcpitch;
 115     }
 116 }
 117
 118 static void
 119 glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_8)(CirrusVGAState *s,
 120                                                         uint8_t *dst,const uint8_t *src,
 121                                                         int dstpitch,int srcpitch,
 122                                                         int bltwidth,int bltheight)
 123 {
 124     int x,y;
 125     uint8_t p;
 126     dstpitch += bltwidth;
 127     srcpitch += bltwidth;
 128     for (y = 0; y < bltheight; y++) {
 129         for (x = 0; x < bltwidth; x++) {
 130             p = *dst;
 131             ROP_OP(&p, *src);
 132             if (p != s->vga.gr[0x34]) *dst = p;
 133             dst--;
 134             src--;
 135         }
 136         dst += dstpitch;
 137         src += srcpitch;
 138     }
 139 }
 140
 141 static void
 142 glue(glue(cirrus_bitblt_rop_fwd_transp_, ROP_NAME),_16)(CirrusVGAState *s,
 143                                                         uint8_t *dst,const uint8_t *src,
 144                                                         int dstpitch,int srcpitch,
 145                                                         int bltwidth,int bltheight)
 146 {
 147     int x,y;
 148     uint8_t p1, p2;
 149     dstpitch -= bltwidth;
 150     srcpitch -= bltwidth;
 151
 152     if (bltheight > 1 && (dstpitch < 0 || srcpitch < 0)) {
 153         return;
 154     }
 155
 156     for (y = 0; y < bltheight; y++) {
 157         for (x = 0; x < bltwidth; x+=2) {
 158             p1 = *dst;
 159             p2 = *(dst+1);
 160             ROP_OP(&p1, *src);
 161             ROP_OP(&p2, *(src + 1));
 162             if ((p1 != s->vga.gr[0x34]) || (p2 != s->vga.gr[0x35])) {
 163                 *dst = p1;
 164                 *(dst+1) = p2;
 165             }
 166             dst+=2;
 167             src+=2;
 168         }
 169         dst += dstpitch;
 170         src += srcpitch;
 171     }
 172 }
 173
 174 static void
 175 glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_16)(CirrusVGAState *s,
 176                                                          uint8_t *dst,const uint8_t *src,
 177                                                          int dstpitch,int srcpitch,
 178                                                          int bltwidth,int bltheight)
 179 {
 180     int x,y;
 181     uint8_t p1, p2;
 182     dstpitch += bltwidth;
 183     srcpitch += bltwidth;
 184     for (y = 0; y < bltheight; y++) {
 185         for (x = 0; x < bltwidth; x+=2) {
 186             p1 = *(dst-1);
 187             p2 = *dst;
 188             ROP_OP(&p1, *(src - 1));
 189             ROP_OP(&p2, *src);
 190             if ((p1 != s->vga.gr[0x34]) || (p2 != s->vga.gr[0x35])) {
 191                 *(dst-1) = p1;
 192                 *dst = p2;
 193             }
 194             dst-=2;
 195             src-=2;
 196         }
 197         dst += dstpitch;
 198         src += srcpitch;
 199     }
 200 }
 201
 202 #define DEPTH 8
 203 #include "cirrus_vga_rop2.h"
 204
 205 #define DEPTH 16
 206 #include "cirrus_vga_rop2.h"
 207
 208 #define DEPTH 24
 209 #include "cirrus_vga_rop2.h"
 210
 211 #define DEPTH 32
 212 #include "cirrus_vga_rop2.h"
 213
 214 #undef ROP_NAME
 215 #undef ROP_OP
 216 #undef ROP_OP_16
 217 #undef ROP_OP_32