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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