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Changes in crossover-wine-src-6.1.0 except for configure
[wine/hacks.git] / dlls / winex11.drv / bitblt.c
blob45a688ba7255763824a9328cabb5cb017b8a53d1
1 /*
2 * GDI bit-blit operations
3 *
4 * Copyright 1993, 1994 Alexandre Julliard
5 * Copyright 2006 Damjan Jovanovic
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 #include "config.h"
23
24 #include <assert.h>
25 #include <stdarg.h>
26 #include <stdio.h>
27 #include <stdlib.h>
28
29 #include "windef.h"
30 #include "winbase.h"
31 #include "wingdi.h"
32 #include "winreg.h"
33 #include "winuser.h"
34 #include "x11drv.h"
35 #include "wine/debug.h"
36
37 WINE_DEFAULT_DEBUG_CHANNEL(bitblt);
38
39
40 #define DST 0 /* Destination drawable */
41 #define SRC 1 /* Source drawable */
42 #define TMP 2 /* Temporary drawable */
43 #define PAT 3 /* Pattern (brush) in destination DC */
44
45 #define OP(src,dst,rop) (OP_ARGS(src,dst) << 4 | (rop))
46 #define OP_ARGS(src,dst) (((src) << 2) | (dst))
47
48 #define OP_SRC(opcode) ((opcode) >> 6)
49 #define OP_DST(opcode) (((opcode) >> 4) & 3)
50 #define OP_SRCDST(opcode) ((opcode) >> 4)
51 #define OP_ROP(opcode) ((opcode) & 0x0f)
52
53 #define MAX_OP_LEN 6 /* Longest opcode + 1 for the terminating 0 */
54
55 #define SWAP_INT32(i1,i2) \
56 do { INT __t = *(i1); *(i1) = *(i2); *(i2) = __t; } while(0)
57
58 static const unsigned char BITBLT_Opcodes[256][MAX_OP_LEN] =
59 {
60 { OP(PAT,DST,GXclear) }, /* 0x00 0 */
61 { OP(PAT,SRC,GXor), OP(SRC,DST,GXnor) }, /* 0x01 ~(D|(P|S)) */
62 { OP(PAT,SRC,GXnor), OP(SRC,DST,GXand) }, /* 0x02 D&~(P|S) */
63 { OP(PAT,SRC,GXnor) }, /* 0x03 ~(P|S) */
64 { OP(PAT,DST,GXnor), OP(SRC,DST,GXand) }, /* 0x04 S&~(D|P) */
65 { OP(PAT,DST,GXnor) }, /* 0x05 ~(D|P) */
66 { OP(SRC,DST,GXequiv), OP(PAT,DST,GXnor), }, /* 0x06 ~(P|~(D^S)) */
67 { OP(SRC,DST,GXand), OP(PAT,DST,GXnor) }, /* 0x07 ~(P|(D&S)) */
68 { OP(PAT,DST,GXandInverted), OP(SRC,DST,GXand) },/* 0x08 S&D&~P */
69 { OP(SRC,DST,GXxor), OP(PAT,DST,GXnor) }, /* 0x09 ~(P|(D^S)) */
70 { OP(PAT,DST,GXandInverted) }, /* 0x0a D&~P */
71 { OP(SRC,DST,GXandReverse), OP(PAT,DST,GXnor) }, /* 0x0b ~(P|(S&~D)) */
72 { OP(PAT,SRC,GXandInverted) }, /* 0x0c S&~P */
73 { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXnor) },/* 0x0d ~(P|(D&~S)) */
74 { OP(SRC,DST,GXnor), OP(PAT,DST,GXnor) }, /* 0x0e ~(P|~(D|S)) */
75 { OP(PAT,DST,GXcopyInverted) }, /* 0x0f ~P */
76 { OP(SRC,DST,GXnor), OP(PAT,DST,GXand) }, /* 0x10 P&~(S|D) */
77 { OP(SRC,DST,GXnor) }, /* 0x11 ~(D|S) */
78 { OP(PAT,DST,GXequiv), OP(SRC,DST,GXnor) }, /* 0x12 ~(S|~(D^P)) */
79 { OP(PAT,DST,GXand), OP(SRC,DST,GXnor) }, /* 0x13 ~(S|(D&P)) */
80 { OP(PAT,SRC,GXequiv), OP(SRC,DST,GXnor) }, /* 0x14 ~(D|~(P^S)) */
81 { OP(PAT,SRC,GXand), OP(SRC,DST,GXnor) }, /* 0x15 ~(D|(P&S)) */
82 { OP(SRC,TMP,GXcopy), OP(PAT,TMP,GXnand),
83 OP(TMP,DST,GXand), OP(SRC,DST,GXxor),
84 OP(PAT,DST,GXxor) }, /* 0x16 P^S^(D&~(P&S) */
85 { OP(SRC,TMP,GXcopy), OP(SRC,DST,GXxor),
86 OP(PAT,SRC,GXxor), OP(SRC,DST,GXand),
87 OP(TMP,DST,GXequiv) }, /* 0x17 ~S^((S^P)&(S^D))*/
88 { OP(PAT,SRC,GXxor), OP(PAT,DST,GXxor),
89 OP(SRC,DST,GXand) }, /* 0x18 (S^P)&(D^P) */
90 { OP(SRC,TMP,GXcopy), OP(PAT,TMP,GXnand),
91 OP(TMP,DST,GXand), OP(SRC,DST,GXequiv) }, /* 0x19 ~S^(D&~(P&S)) */
92 { OP(PAT,SRC,GXand), OP(SRC,DST,GXor),
93 OP(PAT,DST,GXxor) }, /* 0x1a P^(D|(S&P)) */
94 { OP(SRC,TMP,GXcopy), OP(PAT,TMP,GXxor),
95 OP(TMP,DST,GXand), OP(SRC,DST,GXequiv) }, /* 0x1b ~S^(D&(P^S)) */
96 { OP(PAT,DST,GXand), OP(SRC,DST,GXor),
97 OP(PAT,DST,GXxor) }, /* 0x1c P^(S|(D&P)) */
98 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXxor),
99 OP(SRC,DST,GXand), OP(TMP,DST,GXequiv) }, /* 0x1d ~D^(S&(D^P)) */
100 { OP(SRC,DST,GXor), OP(PAT,DST,GXxor) }, /* 0x1e P^(D|S) */
101 { OP(SRC,DST,GXor), OP(PAT,DST,GXnand) }, /* 0x1f ~(P&(D|S)) */
102 { OP(PAT,SRC,GXandReverse), OP(SRC,DST,GXand) }, /* 0x20 D&(P&~S) */
103 { OP(PAT,DST,GXxor), OP(SRC,DST,GXnor) }, /* 0x21 ~(S|(D^P)) */
104 { OP(SRC,DST,GXandInverted) }, /* 0x22 ~S&D */
105 { OP(PAT,DST,GXandReverse), OP(SRC,DST,GXnor) }, /* 0x23 ~(S|(P&~D)) */
106 { OP(SRC,DST,GXxor), OP(PAT,SRC,GXxor),
107 OP(SRC,DST,GXand) }, /* 0x24 (S^P)&(S^D) */
108 { OP(PAT,SRC,GXnand), OP(SRC,DST,GXand),
109 OP(PAT,DST,GXequiv) }, /* 0x25 ~P^(D&~(S&P)) */
110 { OP(SRC,TMP,GXcopy), OP(PAT,TMP,GXand),
111 OP(TMP,DST,GXor), OP(SRC,DST,GXxor) }, /* 0x26 S^(D|(S&P)) */
112 { OP(SRC,TMP,GXcopy), OP(PAT,TMP,GXequiv),
113 OP(TMP,DST,GXor), OP(SRC,DST,GXxor) }, /* 0x27 S^(D|~(P^S)) */
114 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXand) }, /* 0x28 D&(P^S) */
115 { OP(SRC,TMP,GXcopy), OP(PAT,TMP,GXand),
116 OP(TMP,DST,GXor), OP(SRC,DST,GXxor),
117 OP(PAT,DST,GXequiv) }, /* 0x29 ~P^S^(D|(P&S)) */
118 { OP(PAT,SRC,GXnand), OP(SRC,DST,GXand) }, /* 0x2a D&~(P&S) */
119 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
120 OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
121 OP(TMP,DST,GXequiv) }, /* 0x2b ~S^((P^S)&(P^D))*/
122 { OP(SRC,DST,GXor), OP(PAT,DST,GXand),
123 OP(SRC,DST,GXxor) }, /* 0x2c S^(P&(S|D)) */
124 { OP(SRC,DST,GXorReverse), OP(PAT,DST,GXxor) }, /* 0x2d P^(S|~D) */
125 { OP(PAT,DST,GXxor), OP(SRC,DST,GXor),
126 OP(PAT,DST,GXxor) }, /* 0x2e P^(S|(D^P)) */
127 { OP(SRC,DST,GXorReverse), OP(PAT,DST,GXnand) }, /* 0x2f ~(P&(S|~D)) */
128 { OP(PAT,SRC,GXandReverse) }, /* 0x30 P&~S */
129 { OP(PAT,DST,GXandInverted), OP(SRC,DST,GXnor) },/* 0x31 ~(S|(D&~P)) */
130 { OP(SRC,DST,GXor), OP(PAT,DST,GXor),
131 OP(SRC,DST,GXxor) }, /* 0x32 S^(D|P|S) */
132 { OP(SRC,DST,GXcopyInverted) }, /* 0x33 ~S */
133 { OP(SRC,DST,GXand), OP(PAT,DST,GXor),
134 OP(SRC,DST,GXxor) }, /* 0x34 S^(P|(D&S)) */
135 { OP(SRC,DST,GXequiv), OP(PAT,DST,GXor),
136 OP(SRC,DST,GXxor) }, /* 0x35 S^(P|~(D^S)) */
137 { OP(PAT,DST,GXor), OP(SRC,DST,GXxor) }, /* 0x36 S^(D|P) */
138 { OP(PAT,DST,GXor), OP(SRC,DST,GXnand) }, /* 0x37 ~(S&(D|P)) */
139 { OP(PAT,DST,GXor), OP(SRC,DST,GXand),
140 OP(PAT,DST,GXxor) }, /* 0x38 P^(S&(D|P)) */
141 { OP(PAT,DST,GXorReverse), OP(SRC,DST,GXxor) }, /* 0x39 S^(P|~D) */
142 { OP(SRC,DST,GXxor), OP(PAT,DST,GXor),
143 OP(SRC,DST,GXxor) }, /* 0x3a S^(P|(D^S)) */
144 { OP(PAT,DST,GXorReverse), OP(SRC,DST,GXnand) }, /* 0x3b ~(S&(P|~D)) */
145 { OP(PAT,SRC,GXxor) }, /* 0x3c P^S */
146 { OP(SRC,DST,GXnor), OP(PAT,DST,GXor),
147 OP(SRC,DST,GXxor) }, /* 0x3d S^(P|~(D|S)) */
148 { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXor),
149 OP(SRC,DST,GXxor) }, /* 0x3e S^(P|(D&~S)) */
150 { OP(PAT,SRC,GXnand) }, /* 0x3f ~(P&S) */
151 { OP(SRC,DST,GXandReverse), OP(PAT,DST,GXand) }, /* 0x40 P&S&~D */
152 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXnor) }, /* 0x41 ~(D|(P^S)) */
153 { OP(DST,SRC,GXxor), OP(PAT,DST,GXxor),
154 OP(SRC,DST,GXand) }, /* 0x42 (S^D)&(P^D) */
155 { OP(SRC,DST,GXnand), OP(PAT,DST,GXand),
156 OP(SRC,DST,GXequiv) }, /* 0x43 ~S^(P&~(D&S)) */
157 { OP(SRC,DST,GXandReverse) }, /* 0x44 S&~D */
158 { OP(PAT,SRC,GXandReverse), OP(SRC,DST,GXnor) }, /* 0x45 ~(D|(P&~S)) */
159 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXand),
160 OP(SRC,DST,GXor), OP(TMP,DST,GXxor) }, /* 0x46 D^(S|(P&D)) */
161 { OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
162 OP(PAT,DST,GXequiv) }, /* 0x47 ~P^(S&(D^P)) */
163 { OP(PAT,DST,GXxor), OP(SRC,DST,GXand) }, /* 0x48 S&(P^D) */
164 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXand),
165 OP(SRC,DST,GXor), OP(TMP,DST,GXxor),
166 OP(PAT,DST,GXequiv) }, /* 0x49 ~P^D^(S|(P&D)) */
167 { OP(DST,SRC,GXor), OP(PAT,SRC,GXand),
168 OP(SRC,DST,GXxor) }, /* 0x4a D^(P&(S|D)) */
169 { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXxor) }, /* 0x4b P^(D|~S) */
170 { OP(PAT,DST,GXnand), OP(SRC,DST,GXand) }, /* 0x4c S&~(D&P) */
171 { OP(SRC,TMP,GXcopy), OP(SRC,DST,GXxor),
172 OP(PAT,SRC,GXxor), OP(SRC,DST,GXor),
173 OP(TMP,DST,GXequiv) }, /* 0x4d ~S^((S^P)|(S^D))*/
174 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXor),
175 OP(PAT,DST,GXxor) }, /* 0x4e P^(D|(S^P)) */
176 { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXnand) },/* 0x4f ~(P&(D|~S)) */
177 { OP(PAT,DST,GXandReverse) }, /* 0x50 P&~D */
178 { OP(PAT,SRC,GXandInverted), OP(SRC,DST,GXnor) },/* 0x51 ~(D|(S&~P)) */
179 { OP(DST,SRC,GXand), OP(PAT,SRC,GXor),
180 OP(SRC,DST,GXxor) }, /* 0x52 D^(P|(S&D)) */
181 { OP(SRC,DST,GXxor), OP(PAT,DST,GXand),
182 OP(SRC,DST,GXequiv) }, /* 0x53 ~S^(P&(D^S)) */
183 { OP(PAT,SRC,GXnor), OP(SRC,DST,GXnor) }, /* 0x54 ~(D|~(P|S)) */
184 { OP(PAT,DST,GXinvert) }, /* 0x55 ~D */
185 { OP(PAT,SRC,GXor), OP(SRC,DST,GXxor) }, /* 0x56 D^(P|S) */
186 { OP(PAT,SRC,GXor), OP(SRC,DST,GXnand) }, /* 0x57 ~(D&(P|S)) */
187 { OP(PAT,SRC,GXor), OP(SRC,DST,GXand),
188 OP(PAT,DST,GXxor) }, /* 0x58 P^(D&(P|S)) */
189 { OP(PAT,SRC,GXorReverse), OP(SRC,DST,GXxor) }, /* 0x59 D^(P|~S) */
190 { OP(PAT,DST,GXxor) }, /* 0x5a D^P */
191 { OP(DST,SRC,GXnor), OP(PAT,SRC,GXor),
192 OP(SRC,DST,GXxor) }, /* 0x5b D^(P|~(S|D)) */
193 { OP(DST,SRC,GXxor), OP(PAT,SRC,GXor),
194 OP(SRC,DST,GXxor) }, /* 0x5c D^(P|(S^D)) */
195 { OP(PAT,SRC,GXorReverse), OP(SRC,DST,GXnand) }, /* 0x5d ~(D&(P|~S)) */
196 { OP(DST,SRC,GXandInverted), OP(PAT,SRC,GXor),
197 OP(SRC,DST,GXxor) }, /* 0x5e D^(P|(S&~D)) */
198 { OP(PAT,DST,GXnand) }, /* 0x5f ~(D&P) */
199 { OP(SRC,DST,GXxor), OP(PAT,DST,GXand) }, /* 0x60 P&(D^S) */
200 { OP(DST,TMP,GXcopy), OP(SRC,DST,GXand),
201 OP(PAT,DST,GXor), OP(SRC,DST,GXxor),
202 OP(TMP,DST,GXequiv) }, /* 0x61 ~D^S^(P|(D&S)) */
203 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXor),
204 OP(SRC,DST,GXand), OP(TMP,DST,GXxor) }, /* 0x62 D^(S&(P|D)) */
205 { OP(PAT,DST,GXorInverted), OP(SRC,DST,GXxor) }, /* 0x63 S^(D|~P) */
206 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXor),
207 OP(SRC,DST,GXand), OP(TMP,DST,GXxor) }, /* 0x64 S^(D&(P|S)) */
208 { OP(PAT,SRC,GXorInverted), OP(SRC,DST,GXxor) }, /* 0x65 D^(S|~P) */
209 { OP(SRC,DST,GXxor) }, /* 0x66 S^D */
210 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXnor),
211 OP(SRC,DST,GXor), OP(TMP,DST,GXxor) }, /* 0x67 S^(D|~(S|P) */
212 { OP(DST,TMP,GXcopy), OP(SRC,DST,GXnor),
213 OP(PAT,DST,GXor), OP(SRC,DST,GXxor),
214 OP(TMP,DST,GXequiv) }, /* 0x68 ~D^S^(P|~(D|S))*/
215 { OP(SRC,DST,GXxor), OP(PAT,DST,GXequiv) }, /* 0x69 ~P^(D^S) */
216 { OP(PAT,SRC,GXand), OP(SRC,DST,GXxor) }, /* 0x6a D^(P&S) */
217 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXor),
218 OP(SRC,DST,GXand), OP(TMP,DST,GXxor),
219 OP(PAT,DST,GXequiv) }, /* 0x6b ~P^S^(D&(P|S)) */
220 { OP(PAT,DST,GXand), OP(SRC,DST,GXxor) }, /* 0x6c S^(D&P) */
221 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXor),
222 OP(SRC,DST,GXand), OP(TMP,DST,GXxor),
223 OP(PAT,DST,GXequiv) }, /* 0x6d ~P^D^(S&(P|D)) */
224 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXorReverse),
225 OP(SRC,DST,GXand), OP(TMP,DST,GXxor) }, /* 0x6e S^(D&(P|~S)) */
226 { OP(SRC,DST,GXequiv), OP(PAT,DST,GXnand) }, /* 0x6f ~(P&~(S^D)) */
227 { OP(SRC,DST,GXnand), OP(PAT,DST,GXand) }, /* 0x70 P&~(D&S) */
228 { OP(SRC,TMP,GXcopy), OP(DST,SRC,GXxor),
229 OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
230 OP(TMP,DST,GXequiv) }, /* 0x71 ~S^((S^D)&(P^D))*/
231 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
232 OP(SRC,DST,GXor), OP(TMP,DST,GXxor) }, /* 0x72 S^(D|(P^S)) */
233 { OP(PAT,DST,GXorInverted), OP(SRC,DST,GXnand) },/* 0x73 ~(S&(D|~P)) */
234 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXxor),
235 OP(SRC,DST,GXor), OP(TMP,DST,GXxor) }, /* 0x74 D^(S|(P^D)) */
236 { OP(PAT,SRC,GXorInverted), OP(SRC,DST,GXnand) },/* 0x75 ~(D&(S|~P)) */
237 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXandReverse),
238 OP(SRC,DST,GXor), OP(TMP,DST,GXxor) }, /* 0x76 S^(D|(P&~S)) */
239 { OP(SRC,DST,GXnand) }, /* 0x77 ~(S&D) */
240 { OP(SRC,DST,GXand), OP(PAT,DST,GXxor) }, /* 0x78 P^(D&S) */
241 { OP(DST,TMP,GXcopy), OP(SRC,DST,GXor),
242 OP(PAT,DST,GXand), OP(SRC,DST,GXxor),
243 OP(TMP,DST,GXequiv) }, /* 0x79 ~D^S^(P&(D|S)) */
244 { OP(DST,SRC,GXorInverted), OP(PAT,SRC,GXand),
245 OP(SRC,DST,GXxor) }, /* 0x7a D^(P&(S|~D)) */
246 { OP(PAT,DST,GXequiv), OP(SRC,DST,GXnand) }, /* 0x7b ~(S&~(D^P)) */
247 { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXand),
248 OP(SRC,DST,GXxor) }, /* 0x7c S^(P&(D|~S)) */
249 { OP(PAT,SRC,GXequiv), OP(SRC,DST,GXnand) }, /* 0x7d ~(D&~(P^S)) */
250 { OP(SRC,DST,GXxor), OP(PAT,SRC,GXxor),
251 OP(SRC,DST,GXor) }, /* 0x7e (S^P)|(S^D) */
252 { OP(PAT,SRC,GXand), OP(SRC,DST,GXnand) }, /* 0x7f ~(D&P&S) */
253 { OP(PAT,SRC,GXand), OP(SRC,DST,GXand) }, /* 0x80 D&P&S */
254 { OP(SRC,DST,GXxor), OP(PAT,SRC,GXxor),
255 OP(SRC,DST,GXnor) }, /* 0x81 ~((S^P)|(S^D)) */
256 { OP(PAT,SRC,GXequiv), OP(SRC,DST,GXand) }, /* 0x82 D&~(P^S) */
257 { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXand),
258 OP(SRC,DST,GXequiv) }, /* 0x83 ~S^(P&(D|~S)) */
259 { OP(PAT,DST,GXequiv), OP(SRC,DST,GXand) }, /* 0x84 S&~(D^P) */
260 { OP(PAT,SRC,GXorInverted), OP(SRC,DST,GXand),
261 OP(PAT,DST,GXequiv) }, /* 0x85 ~P^(D&(S|~P)) */
262 { OP(DST,TMP,GXcopy), OP(SRC,DST,GXor),
263 OP(PAT,DST,GXand), OP(SRC,DST,GXxor),
264 OP(TMP,DST,GXxor) }, /* 0x86 D^S^(P&(D|S)) */
265 { OP(SRC,DST,GXand), OP(PAT,DST,GXequiv) }, /* 0x87 ~P^(D&S) */
266 { OP(SRC,DST,GXand) }, /* 0x88 S&D */
267 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXandReverse),
268 OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) }, /* 0x89 ~S^(D|(P&~S)) */
269 { OP(PAT,SRC,GXorInverted), OP(SRC,DST,GXand) }, /* 0x8a D&(S|~P) */
270 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXxor),
271 OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) }, /* 0x8b ~D^(S|(P^D)) */
272 { OP(PAT,DST,GXorInverted), OP(SRC,DST,GXand) }, /* 0x8c S&(D|~P) */
273 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
274 OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) }, /* 0x8d ~S^(D|(P^S)) */
275 { OP(SRC,TMP,GXcopy), OP(DST,SRC,GXxor),
276 OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
277 OP(TMP,DST,GXxor) }, /* 0x8e S^((S^D)&(P^D))*/
278 { OP(SRC,DST,GXnand), OP(PAT,DST,GXnand) }, /* 0x8f ~(P&~(D&S)) */
279 { OP(SRC,DST,GXequiv), OP(PAT,DST,GXand) }, /* 0x90 P&~(D^S) */
280 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXorReverse),
281 OP(SRC,DST,GXand), OP(TMP,DST,GXequiv) }, /* 0x91 ~S^(D&(P|~S)) */
282 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXor),
283 OP(SRC,DST,GXand), OP(PAT,DST,GXxor),
284 OP(TMP,DST,GXxor) }, /* 0x92 D^P^(S&(D|P)) */
285 { OP(PAT,DST,GXand), OP(SRC,DST,GXequiv) }, /* 0x93 ~S^(P&D) */
286 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXor),
287 OP(SRC,DST,GXand), OP(PAT,DST,GXxor),
288 OP(TMP,DST,GXxor) }, /* 0x94 S^P^(D&(P|S)) */
289 { OP(PAT,SRC,GXand), OP(SRC,DST,GXequiv) }, /* 0x95 ~D^(P&S) */
290 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXxor) }, /* 0x96 D^P^S */
291 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXnor),
292 OP(SRC,DST,GXor), OP(PAT,DST,GXxor),
293 OP(TMP,DST,GXxor) }, /* 0x97 S^P^(D|~(P|S)) */
294 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXnor),
295 OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) }, /* 0x98 ~S^(D|~(P|S)) */
296 { OP(SRC,DST,GXequiv) }, /* 0x99 ~S^D */
297 { OP(PAT,SRC,GXandReverse), OP(SRC,DST,GXxor) }, /* 0x9a D^(P&~S) */
298 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXor),
299 OP(SRC,DST,GXand), OP(TMP,DST,GXequiv) }, /* 0x9b ~S^(D&(P|S)) */
300 { OP(PAT,DST,GXandReverse), OP(SRC,DST,GXxor) }, /* 0x9c S^(P&~D) */
301 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXor),
302 OP(SRC,DST,GXand), OP(TMP,DST,GXequiv) }, /* 0x9d ~D^(S&(P|D)) */
303 { OP(DST,TMP,GXcopy), OP(SRC,DST,GXand),
304 OP(PAT,DST,GXor), OP(SRC,DST,GXxor),
305 OP(TMP,DST,GXxor) }, /* 0x9e D^S^(P|(D&S)) */
306 { OP(SRC,DST,GXxor), OP(PAT,DST,GXnand) }, /* 0x9f ~(P&(D^S)) */
307 { OP(PAT,DST,GXand) }, /* 0xa0 D&P */
308 { OP(PAT,SRC,GXandInverted), OP(SRC,DST,GXor),
309 OP(PAT,DST,GXequiv) }, /* 0xa1 ~P^(D|(S&~P)) */
310 { OP(PAT,SRC,GXorReverse), OP(SRC,DST,GXand) }, /* 0xa2 D&(P|~S) */
311 { OP(DST,SRC,GXxor), OP(PAT,SRC,GXor),
312 OP(SRC,DST,GXequiv) }, /* 0xa3 ~D^(P|(S^D)) */
313 { OP(PAT,SRC,GXnor), OP(SRC,DST,GXor),
314 OP(PAT,DST,GXequiv) }, /* 0xa4 ~P^(D|~(S|P)) */
315 { OP(PAT,DST,GXequiv) }, /* 0xa5 ~P^D */
316 { OP(PAT,SRC,GXandInverted), OP(SRC,DST,GXxor) },/* 0xa6 D^(S&~P) */
317 { OP(PAT,SRC,GXor), OP(SRC,DST,GXand),
318 OP(PAT,DST,GXequiv) }, /* 0xa7 ~P^(D&(S|P)) */
319 { OP(PAT,SRC,GXor), OP(SRC,DST,GXand) }, /* 0xa8 D&(P|S) */
320 { OP(PAT,SRC,GXor), OP(SRC,DST,GXequiv) }, /* 0xa9 ~D^(P|S) */
321 { OP(SRC,DST,GXnoop) }, /* 0xaa D */
322 { OP(PAT,SRC,GXnor), OP(SRC,DST,GXor) }, /* 0xab D|~(P|S) */
323 { OP(SRC,DST,GXxor), OP(PAT,DST,GXand),
324 OP(SRC,DST,GXxor) }, /* 0xac S^(P&(D^S)) */
325 { OP(DST,SRC,GXand), OP(PAT,SRC,GXor),
326 OP(SRC,DST,GXequiv) }, /* 0xad ~D^(P|(S&D)) */
327 { OP(PAT,SRC,GXandInverted), OP(SRC,DST,GXor) }, /* 0xae D|(S&~P) */
328 { OP(PAT,DST,GXorInverted) }, /* 0xaf D|~P */
329 { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXand) }, /* 0xb0 P&(D|~S) */
330 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXor),
331 OP(PAT,DST,GXequiv) }, /* 0xb1 ~P^(D|(S^P)) */
332 { OP(SRC,TMP,GXcopy), OP(SRC,DST,GXxor),
333 OP(PAT,SRC,GXxor), OP(SRC,DST,GXor),
334 OP(TMP,DST,GXxor) }, /* 0xb2 S^((S^P)|(S^D))*/
335 { OP(PAT,DST,GXnand), OP(SRC,DST,GXnand) }, /* 0xb3 ~(S&~(D&P)) */
336 { OP(SRC,DST,GXandReverse), OP(PAT,DST,GXxor) }, /* 0xb4 P^(S&~D) */
337 { OP(DST,SRC,GXor), OP(PAT,SRC,GXand),
338 OP(SRC,DST,GXequiv) }, /* 0xb5 ~D^(P&(S|D)) */
339 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXand),
340 OP(SRC,DST,GXor), OP(PAT,DST,GXxor),
341 OP(TMP,DST,GXxor) }, /* 0xb6 D^P^(S|(D&P)) */
342 { OP(PAT,DST,GXxor), OP(SRC,DST,GXnand) }, /* 0xb7 ~(S&(D^P)) */
343 { OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
344 OP(PAT,DST,GXxor) }, /* 0xb8 P^(S&(D^P)) */
345 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXand),
346 OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) }, /* 0xb9 ~D^(S|(P&D)) */
347 { OP(PAT,SRC,GXandReverse), OP(SRC,DST,GXor) }, /* 0xba D|(P&~S) */
348 { OP(SRC,DST,GXorInverted) }, /* 0xbb ~S|D */
349 { OP(SRC,DST,GXnand), OP(PAT,DST,GXand),
350 OP(SRC,DST,GXxor) }, /* 0xbc S^(P&~(D&S)) */
351 { OP(DST,SRC,GXxor), OP(PAT,DST,GXxor),
352 OP(SRC,DST,GXnand) }, /* 0xbd ~((S^D)&(P^D)) */
353 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXor) }, /* 0xbe D|(P^S) */
354 { OP(PAT,SRC,GXnand), OP(SRC,DST,GXor) }, /* 0xbf D|~(P&S) */
355 { OP(PAT,SRC,GXand) }, /* 0xc0 P&S */
356 { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXor),
357 OP(SRC,DST,GXequiv) }, /* 0xc1 ~S^(P|(D&~S)) */
358 { OP(SRC,DST,GXnor), OP(PAT,DST,GXor),
359 OP(SRC,DST,GXequiv) }, /* 0xc2 ~S^(P|~(D|S)) */
360 { OP(PAT,SRC,GXequiv) }, /* 0xc3 ~P^S */
361 { OP(PAT,DST,GXorReverse), OP(SRC,DST,GXand) }, /* 0xc4 S&(P|~D) */
362 { OP(SRC,DST,GXxor), OP(PAT,DST,GXor),
363 OP(SRC,DST,GXequiv) }, /* 0xc5 ~S^(P|(D^S)) */
364 { OP(PAT,DST,GXandInverted), OP(SRC,DST,GXxor) },/* 0xc6 S^(D&~P) */
365 { OP(PAT,DST,GXor), OP(SRC,DST,GXand),
366 OP(PAT,DST,GXequiv) }, /* 0xc7 ~P^(S&(D|P)) */
367 { OP(PAT,DST,GXor), OP(SRC,DST,GXand) }, /* 0xc8 S&(D|P) */
368 { OP(PAT,DST,GXor), OP(SRC,DST,GXequiv) }, /* 0xc9 ~S^(P|D) */
369 { OP(DST,SRC,GXxor), OP(PAT,SRC,GXand),
370 OP(SRC,DST,GXxor) }, /* 0xca D^(P&(S^D)) */
371 { OP(SRC,DST,GXand), OP(PAT,DST,GXor),
372 OP(SRC,DST,GXequiv) }, /* 0xcb ~S^(P|(D&S)) */
373 { OP(SRC,DST,GXcopy) }, /* 0xcc S */
374 { OP(PAT,DST,GXnor), OP(SRC,DST,GXor) }, /* 0xcd S|~(D|P) */
375 { OP(PAT,DST,GXandInverted), OP(SRC,DST,GXor) }, /* 0xce S|(D&~P) */
376 { OP(PAT,SRC,GXorInverted) }, /* 0xcf S|~P */
377 { OP(SRC,DST,GXorReverse), OP(PAT,DST,GXand) }, /* 0xd0 P&(S|~D) */
378 { OP(PAT,DST,GXxor), OP(SRC,DST,GXor),
379 OP(PAT,DST,GXequiv) }, /* 0xd1 ~P^(S|(D^P)) */
380 { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXxor) },/* 0xd2 P^(D&~S) */
381 { OP(SRC,DST,GXor), OP(PAT,DST,GXand),
382 OP(SRC,DST,GXequiv) }, /* 0xd3 ~S^(P&(D|S)) */
383 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
384 OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
385 OP(TMP,DST,GXxor) }, /* 0xd4 S^((S^P)&(D^P))*/
386 { OP(PAT,SRC,GXnand), OP(SRC,DST,GXnand) }, /* 0xd5 ~(D&~(P&S)) */
387 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXand),
388 OP(SRC,DST,GXor), OP(PAT,DST,GXxor),
389 OP(TMP,DST,GXxor) }, /* 0xd6 S^P^(D|(P&S)) */
390 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXnand) }, /* 0xd7 ~(D&(P^S)) */
391 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXand),
392 OP(PAT,DST,GXxor) }, /* 0xd8 P^(D&(S^P)) */
393 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXand),
394 OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) }, /* 0xd9 ~S^(D|(P&S)) */
395 { OP(DST,SRC,GXnand), OP(PAT,SRC,GXand),
396 OP(SRC,DST,GXxor) }, /* 0xda D^(P&~(S&D)) */
397 { OP(SRC,DST,GXxor), OP(PAT,SRC,GXxor),
398 OP(SRC,DST,GXnand) }, /* 0xdb ~((S^P)&(S^D)) */
399 { OP(PAT,DST,GXandReverse), OP(SRC,DST,GXor) }, /* 0xdc S|(P&~D) */
400 { OP(SRC,DST,GXorReverse) }, /* 0xdd S|~D */
401 { OP(PAT,DST,GXxor), OP(SRC,DST,GXor) }, /* 0xde S|(D^P) */
402 { OP(PAT,DST,GXnand), OP(SRC,DST,GXor) }, /* 0xdf S|~(D&P) */
403 { OP(SRC,DST,GXor), OP(PAT,DST,GXand) }, /* 0xe0 P&(D|S) */
404 { OP(SRC,DST,GXor), OP(PAT,DST,GXequiv) }, /* 0xe1 ~P^(D|S) */
405 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXxor),
406 OP(SRC,DST,GXand), OP(TMP,DST,GXxor) }, /* 0xe2 D^(S&(P^D)) */
407 { OP(PAT,DST,GXand), OP(SRC,DST,GXor),
408 OP(PAT,DST,GXequiv) }, /* 0xe3 ~P^(S|(D&P)) */
409 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
410 OP(SRC,DST,GXand), OP(TMP,DST,GXxor) }, /* 0xe4 S^(D&(P^S)) */
411 { OP(PAT,SRC,GXand), OP(SRC,DST,GXor),
412 OP(PAT,DST,GXequiv) }, /* 0xe5 ~P^(D|(S&P)) */
413 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXnand),
414 OP(SRC,DST,GXand), OP(TMP,DST,GXxor) }, /* 0xe6 S^(D&~(P&S)) */
415 { OP(PAT,SRC,GXxor), OP(PAT,DST,GXxor),
416 OP(SRC,DST,GXnand) }, /* 0xe7 ~((S^P)&(D^P)) */
417 { OP(SRC,TMP,GXcopy), OP(SRC,DST,GXxor),
418 OP(PAT,SRC,GXxor), OP(SRC,DST,GXand),
419 OP(TMP,DST,GXxor) }, /* 0xe8 S^((S^P)&(S^D))*/
420 { OP(DST,TMP,GXcopy), OP(SRC,DST,GXnand),
421 OP(PAT,DST,GXand), OP(SRC,DST,GXxor),
422 OP(TMP,DST,GXequiv) }, /* 0xe9 ~D^S^(P&~(S&D))*/
423 { OP(PAT,SRC,GXand), OP(SRC,DST,GXor) }, /* 0xea D|(P&S) */
424 { OP(PAT,SRC,GXequiv), OP(SRC,DST,GXor) }, /* 0xeb D|~(P^S) */
425 { OP(PAT,DST,GXand), OP(SRC,DST,GXor) }, /* 0xec S|(D&P) */
426 { OP(PAT,DST,GXequiv), OP(SRC,DST,GXor) }, /* 0xed S|~(D^P) */
427 { OP(SRC,DST,GXor) }, /* 0xee S|D */
428 { OP(PAT,DST,GXorInverted), OP(SRC,DST,GXor) }, /* 0xef S|D|~P */
429 { OP(PAT,DST,GXcopy) }, /* 0xf0 P */
430 { OP(SRC,DST,GXnor), OP(PAT,DST,GXor) }, /* 0xf1 P|~(D|S) */
431 { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXor) }, /* 0xf2 P|(D&~S) */
432 { OP(PAT,SRC,GXorReverse) }, /* 0xf3 P|~S */
433 { OP(SRC,DST,GXandReverse), OP(PAT,DST,GXor) }, /* 0xf4 P|(S&~D) */
434 { OP(PAT,DST,GXorReverse) }, /* 0xf5 P|~D */
435 { OP(SRC,DST,GXxor), OP(PAT,DST,GXor) }, /* 0xf6 P|(D^S) */
436 { OP(SRC,DST,GXnand), OP(PAT,DST,GXor) }, /* 0xf7 P|~(S&D) */
437 { OP(SRC,DST,GXand), OP(PAT,DST,GXor) }, /* 0xf8 P|(D&S) */
438 { OP(SRC,DST,GXequiv), OP(PAT,DST,GXor) }, /* 0xf9 P|~(D^S) */
439 { OP(PAT,DST,GXor) }, /* 0xfa D|P */
440 { OP(PAT,SRC,GXorReverse), OP(SRC,DST,GXor) }, /* 0xfb D|P|~S */
441 { OP(PAT,SRC,GXor) }, /* 0xfc P|S */
442 { OP(SRC,DST,GXorReverse), OP(PAT,DST,GXor) }, /* 0xfd P|S|~D */
443 { OP(SRC,DST,GXor), OP(PAT,DST,GXor) }, /* 0xfe P|D|S */
444 { OP(PAT,DST,GXset) } /* 0xff 1 */
445 };
446
447
448 #ifdef BITBLT_TEST /* Opcodes test */
449
450 static int do_bitop( int s, int d, int rop )
451 {
452 int res;
453 switch(rop)
454 {
455 case GXclear: res = 0; break;
456 case GXand: res = s & d; break;
457 case GXandReverse: res = s & ~d; break;
458 case GXcopy: res = s; break;
459 case GXandInverted: res = ~s & d; break;
460 case GXnoop: res = d; break;
461 case GXxor: res = s ^ d; break;
462 case GXor: res = s | d; break;
463 case GXnor: res = ~(s | d); break;
464 case GXequiv: res = ~s ^ d; break;
465 case GXinvert: res = ~d; break;
466 case GXorReverse: res = s | ~d; break;
467 case GXcopyInverted: res = ~s; break;
468 case GXorInverted: res = ~s | d; break;
469 case GXnand: res = ~(s & d); break;
470 case GXset: res = 1; break;
471 }
472 return res & 1;
473 }
474
475 int main()
476 {
477 int rop, i, res, src, dst, pat, tmp, dstUsed;
478 const BYTE *opcode;
479
480 for (rop = 0; rop < 256; rop++)
481 {
482 res = dstUsed = 0;
483 for (i = 0; i < 8; i++)
484 {
485 pat = (i >> 2) & 1;
486 src = (i >> 1) & 1;
487 dst = i & 1;
488 for (opcode = BITBLT_Opcodes[rop]; *opcode; opcode++)
489 {
490 switch(*opcode >> 4)
491 {
492 case OP_ARGS(DST,TMP):
493 tmp = do_bitop( dst, tmp, *opcode & 0xf );
494 break;
495 case OP_ARGS(DST,SRC):
496 src = do_bitop( dst, src, *opcode & 0xf );
497 break;
498 case OP_ARGS(SRC,TMP):
499 tmp = do_bitop( src, tmp, *opcode & 0xf );
500 break;
501 case OP_ARGS(SRC,DST):
502 dst = do_bitop( src, dst, *opcode & 0xf );
503 dstUsed = 1;
504 break;
505 case OP_ARGS(PAT,TMP):
506 tmp = do_bitop( pat, tmp, *opcode & 0xf );
507 break;
508 case OP_ARGS(PAT,DST):
509 dst = do_bitop( pat, dst, *opcode & 0xf );
510 dstUsed = 1;
511 break;
512 case OP_ARGS(PAT,SRC):
513 src = do_bitop( pat, src, *opcode & 0xf );
514 break;
515 case OP_ARGS(TMP,DST):
516 dst = do_bitop( tmp, dst, *opcode & 0xf );
517 dstUsed = 1;
518 break;
519 case OP_ARGS(TMP,SRC):
520 src = do_bitop( tmp, src, *opcode & 0xf );
521 break;
522 default:
523 printf( "Invalid opcode %x\n", *opcode );
524 }
525 }
526 if (!dstUsed) dst = src;
527 if (dst) res |= 1 << i;
528 }
529 if (res != rop) printf( "%02x: ERROR, res=%02x\n", rop, res );
530 }
531
532 return 0;
533 }
534
535 #endif /* BITBLT_TEST */
536
537
538 static void get_colors(X11DRV_PDEVICE *physDevDst, X11DRV_PDEVICE *physDevSrc,
539 int *fg, int *bg)
540 {
541 RGBQUAD rgb[2];
542
543 *fg = physDevDst->textPixel;
544 *bg = physDevDst->backgroundPixel;
545 if(physDevSrc->depth == 1) {
546 if(GetDIBColorTable(physDevSrc->hdc, 0, 2, rgb) == 2) {
547 DWORD logcolor;
548 logcolor = RGB(rgb[0].rgbRed, rgb[0].rgbGreen, rgb[0].rgbBlue);
549 *fg = X11DRV_PALETTE_ToPhysical( physDevDst, logcolor );
550 logcolor = RGB(rgb[1].rgbRed, rgb[1].rgbGreen,rgb[1].rgbBlue);
551 *bg = X11DRV_PALETTE_ToPhysical( physDevDst, logcolor );
552 }
553 }
554 }
555
556 /***********************************************************************
557 * BITBLT_StretchRow
558 *
559 * Stretch a row of pixels. Helper function for BITBLT_StretchImage.
560 */
561 static void BITBLT_StretchRow( int *rowSrc, int *rowDst,
562 INT startDst, INT widthDst,
563 INT xinc, INT xoff, WORD mode )
564 {
565 register INT xsrc = xinc * startDst + xoff;
566 rowDst += startDst;
567 switch(mode)
568 {
569 case STRETCH_ANDSCANS:
570 for(; widthDst > 0; widthDst--, xsrc += xinc)
571 *rowDst++ &= rowSrc[xsrc >> 16];
572 break;
573 case STRETCH_ORSCANS:
574 for(; widthDst > 0; widthDst--, xsrc += xinc)
575 *rowDst++ |= rowSrc[xsrc >> 16];
576 break;
577 case STRETCH_DELETESCANS:
578 for(; widthDst > 0; widthDst--, xsrc += xinc)
579 *rowDst++ = rowSrc[xsrc >> 16];
580 break;
581 }
582 }
583
584
585 /***********************************************************************
586 * BITBLT_ShrinkRow
587 *
588 * Shrink a row of pixels. Helper function for BITBLT_StretchImage.
589 */
590 static void BITBLT_ShrinkRow( int *rowSrc, int *rowDst,
591 INT startSrc, INT widthSrc,
592 INT xinc, INT xoff, WORD mode )
593 {
594 register INT xdst = xinc * startSrc + xoff;
595 rowSrc += startSrc;
596 switch(mode)
597 {
598 case STRETCH_ORSCANS:
599 for(; widthSrc > 0; widthSrc--, xdst += xinc)
600 rowDst[xdst >> 16] |= *rowSrc++;
601 break;
602 case STRETCH_ANDSCANS:
603 for(; widthSrc > 0; widthSrc--, xdst += xinc)
604 rowDst[xdst >> 16] &= *rowSrc++;
605 break;
606 case STRETCH_DELETESCANS:
607 for(; widthSrc > 0; widthSrc--, xdst += xinc)
608 rowDst[xdst >> 16] = *rowSrc++;
609 break;
610 }
611 }
612
613
614 /***********************************************************************
615 * BITBLT_GetRow
616 *
617 * Retrieve a row from an image. Helper function for BITBLT_StretchImage.
618 */
619 static void BITBLT_GetRow( XImage *image, int *pdata, INT row,
620 INT start, INT width, INT depthDst,
621 int fg, int bg, BOOL swap)
622 {
623 register INT i;
624
625 assert( (row >= 0) && (row < image->height) );
626 assert( (start >= 0) && (width <= image->width) );
627
628 pdata += swap ? start+width-1 : start;
629 if (image->depth == depthDst) /* color -> color */
630 {
631 if (X11DRV_PALETTE_XPixelToPalette && (depthDst != 1))
632 if (swap) for (i = 0; i < width; i++)
633 *pdata-- = X11DRV_PALETTE_XPixelToPalette[XGetPixel( image, i, row )];
634 else for (i = 0; i < width; i++)
635 *pdata++ = X11DRV_PALETTE_XPixelToPalette[XGetPixel( image, i, row )];
636 else
637 if (swap) for (i = 0; i < width; i++)
638 *pdata-- = XGetPixel( image, i, row );
639 else for (i = 0; i < width; i++)
640 *pdata++ = XGetPixel( image, i, row );
641 }
642 else
643 {
644 if (image->depth == 1) /* monochrome -> color */
645 {
646 if (X11DRV_PALETTE_XPixelToPalette)
647 {
648 fg = X11DRV_PALETTE_XPixelToPalette[fg];
649 bg = X11DRV_PALETTE_XPixelToPalette[bg];
650 }
651 if (swap) for (i = 0; i < width; i++)
652 *pdata-- = XGetPixel( image, i, row ) ? bg : fg;
653 else for (i = 0; i < width; i++)
654 *pdata++ = XGetPixel( image, i, row ) ? bg : fg;
655 }
656 else /* color -> monochrome */
657 {
658 if (swap) for (i = 0; i < width; i++)
659 *pdata-- = (XGetPixel( image, i, row ) == bg) ? 1 : 0;
660 else for (i = 0; i < width; i++)
661 *pdata++ = (XGetPixel( image, i, row ) == bg) ? 1 : 0;
662 }
663 }
664 }
665
666
667 /***********************************************************************
668 * BITBLT_StretchImage
669 *
670 * Stretch an X image.
671 * FIXME: does not work for full 32-bit coordinates.
672 */
673 static void BITBLT_StretchImage( XImage *srcImage, XImage *dstImage,
674 INT widthSrc, INT heightSrc,
675 INT widthDst, INT heightDst,
676 RECT *visRectSrc, RECT *visRectDst,
677 int foreground, int background, WORD mode )
678 {
679 int *rowSrc, *rowDst, *pixel;
680 char *pdata;
681 INT xinc, xoff, yinc, ysrc, ydst;
682 register INT x, y;
683 BOOL hstretch, vstretch, hswap, vswap;
684
685 hswap = ((int)widthSrc * widthDst) < 0;
686 vswap = ((int)heightSrc * heightDst) < 0;
687 widthSrc = abs(widthSrc);
688 heightSrc = abs(heightSrc);
689 widthDst = abs(widthDst);
690 heightDst = abs(heightDst);
691
692 if (!(rowSrc = HeapAlloc( GetProcessHeap(), 0,
693 (widthSrc+widthDst)*sizeof(int) ))) return;
694 rowDst = rowSrc + widthSrc;
695
696 /* When stretching, all modes are the same, and DELETESCANS is faster */
697 if ((widthSrc < widthDst) && (heightSrc < heightDst))
698 mode = STRETCH_DELETESCANS;
699
700 if (mode == STRETCH_HALFTONE) /* FIXME */
701 mode = STRETCH_DELETESCANS;
702
703 if (mode != STRETCH_DELETESCANS)
704 memset( rowDst, (mode == STRETCH_ANDSCANS) ? 0xff : 0x00,
705 widthDst*sizeof(int) );
706
707 hstretch = (widthSrc < widthDst);
708 vstretch = (heightSrc < heightDst);
709
710 if (hstretch)
711 {
712 xinc = ((int)widthSrc << 16) / widthDst;
713 xoff = ((widthSrc << 16) - (xinc * widthDst)) / 2;
714 }
715 else
716 {
717 xinc = ((int)widthDst << 16) / widthSrc;
718 xoff = ((widthDst << 16) - (xinc * widthSrc)) / 2;
719 }
720
721 if (vstretch)
722 {
723 yinc = ((int)heightSrc << 16) / heightDst;
724 ydst = visRectDst->top;
725 if (vswap)
726 {
727 ysrc = yinc * (heightDst - ydst - 1);
728 yinc = -yinc;
729 }
730 else
731 ysrc = yinc * ydst;
732
733 for ( ; (ydst < visRectDst->bottom); ysrc += yinc, ydst++)
734 {
735 if (((ysrc >> 16) < visRectSrc->top) ||
736 ((ysrc >> 16) >= visRectSrc->bottom)) continue;
737
738 /* Retrieve a source row */
739 BITBLT_GetRow( srcImage, rowSrc, (ysrc >> 16) - visRectSrc->top,
740 hswap ? widthSrc - visRectSrc->right
741 : visRectSrc->left,
742 visRectSrc->right - visRectSrc->left,
743 dstImage->depth, foreground, background, hswap );
744
745 /* Stretch or shrink it */
746 if (hstretch)
747 BITBLT_StretchRow( rowSrc, rowDst, visRectDst->left,
748 visRectDst->right - visRectDst->left,
749 xinc, xoff, mode );
750 else BITBLT_ShrinkRow( rowSrc, rowDst,
751 hswap ? widthSrc - visRectSrc->right
752 : visRectSrc->left,
753 visRectSrc->right - visRectSrc->left,
754 xinc, xoff, mode );
755
756 /* Store the destination row */
757 pixel = rowDst + visRectDst->right - 1;
758 y = ydst - visRectDst->top;
759 for (x = visRectDst->right-visRectDst->left-1; x >= 0; x--)
760 XPutPixel( dstImage, x, y, *pixel-- );
761 if (mode != STRETCH_DELETESCANS)
762 memset( rowDst, (mode == STRETCH_ANDSCANS) ? 0xff : 0x00,
763 widthDst*sizeof(int) );
764
765 /* Make copies of the destination row */
766
767 pdata = dstImage->data + dstImage->bytes_per_line * y;
768 while (((ysrc + yinc) >> 16 == ysrc >> 16) &&
769 (ydst < visRectDst->bottom-1))
770 {
771 memcpy( pdata + dstImage->bytes_per_line, pdata,
772 dstImage->bytes_per_line );
773 pdata += dstImage->bytes_per_line;
774 ysrc += yinc;
775 ydst++;
776 }
777 }
778 }
779 else /* Shrinking */
780 {
781 yinc = ((int)heightDst << 16) / heightSrc;
782 ysrc = visRectSrc->top;
783 ydst = ((heightDst << 16) - (yinc * heightSrc)) / 2;
784 if (vswap)
785 {
786 ydst += yinc * (heightSrc - ysrc - 1);
787 yinc = -yinc;
788 }
789 else
790 ydst += yinc * ysrc;
791
792 for( ; (ysrc < visRectSrc->bottom); ydst += yinc, ysrc++)
793 {
794 if (((ydst >> 16) < visRectDst->top) ||
795 ((ydst >> 16) >= visRectDst->bottom)) continue;
796
797 /* Retrieve a source row */
798 BITBLT_GetRow( srcImage, rowSrc, ysrc - visRectSrc->top,
799 hswap ? widthSrc - visRectSrc->right
800 : visRectSrc->left,
801 visRectSrc->right - visRectSrc->left,
802 dstImage->depth, foreground, background, hswap );
803
804 /* Stretch or shrink it */
805 if (hstretch)
806 BITBLT_StretchRow( rowSrc, rowDst, visRectDst->left,
807 visRectDst->right - visRectDst->left,
808 xinc, xoff, mode );
809 else BITBLT_ShrinkRow( rowSrc, rowDst,
810 hswap ? widthSrc - visRectSrc->right
811 : visRectSrc->left,
812 visRectSrc->right - visRectSrc->left,
813 xinc, xoff, mode );
814
815 /* Merge several source rows into the destination */
816 if (mode == STRETCH_DELETESCANS)
817 {
818 /* Simply skip the overlapping rows */
819 while (((ydst + yinc) >> 16 == ydst >> 16) &&
820 (ysrc < visRectSrc->bottom-1))
821 {
822 ydst += yinc;
823 ysrc++;
824 }
825 }
826 else if (((ydst + yinc) >> 16 == ydst >> 16) &&
827 (ysrc < visRectSrc->bottom-1))
828 continue; /* Restart loop for next overlapping row */
829
830 /* Store the destination row */
831 pixel = rowDst + visRectDst->right - 1;
832 y = (ydst >> 16) - visRectDst->top;
833 for (x = visRectDst->right-visRectDst->left-1; x >= 0; x--)
834 XPutPixel( dstImage, x, y, *pixel-- );
835 if (mode != STRETCH_DELETESCANS)
836 memset( rowDst, (mode == STRETCH_ANDSCANS) ? 0xff : 0x00,
837 widthDst*sizeof(int) );
838 }
839 }
840 HeapFree( GetProcessHeap(), 0, rowSrc );
841 }
842
843
844 /***********************************************************************
845 * BITBLT_GetSrcAreaStretch
846 *
847 * Retrieve an area from the source DC, stretching and mapping all the
848 * pixels to Windows colors.
849 */
850 static int BITBLT_GetSrcAreaStretch( X11DRV_PDEVICE *physDevSrc, X11DRV_PDEVICE *physDevDst,
851 Pixmap pixmap, GC gc,
852 INT xSrc, INT ySrc,
853 INT widthSrc, INT heightSrc,
854 INT xDst, INT yDst,
855 INT widthDst, INT heightDst,
856 RECT *visRectSrc, RECT *visRectDst )
857 {
858 XImage *imageSrc, *imageDst;
859 RECT rectSrc = *visRectSrc;
860 RECT rectDst = *visRectDst;
861 int fg, bg;
862
863 if (widthSrc < 0) xSrc += widthSrc;
864 if (widthDst < 0) xDst += widthDst;
865 if (heightSrc < 0) ySrc += heightSrc;
866 if (heightDst < 0) yDst += heightDst;
867 rectSrc.left -= xSrc;
868 rectSrc.right -= xSrc;
869 rectSrc.top -= ySrc;
870 rectSrc.bottom -= ySrc;
871 rectDst.left -= xDst;
872 rectDst.right -= xDst;
873 rectDst.top -= yDst;
874 rectDst.bottom -= yDst;
875
876 get_colors(physDevDst, physDevSrc, &fg, &bg);
877 /* FIXME: avoid BadMatch errors */
878 imageSrc = XGetImage( gdi_display, physDevSrc->drawable,
879 physDevSrc->dc_rect.left + visRectSrc->left,
880 physDevSrc->dc_rect.top + visRectSrc->top,
881 visRectSrc->right - visRectSrc->left,
882 visRectSrc->bottom - visRectSrc->top,
883 AllPlanes, ZPixmap );
884 if(!imageSrc)
885 {
886 FIXME("Failed!!\n");
887 return 0;
888 }
889 imageDst = X11DRV_DIB_CreateXImage( rectDst.right - rectDst.left,
890 rectDst.bottom - rectDst.top, physDevDst->depth );
891 BITBLT_StretchImage( imageSrc, imageDst, widthSrc, heightSrc,
892 widthDst, heightDst, &rectSrc, &rectDst,
893 fg, physDevDst->depth != 1 ?
894 bg : physDevSrc->backgroundPixel,
895 GetStretchBltMode(physDevDst->hdc) );
896 XPutImage( gdi_display, pixmap, gc, imageDst, 0, 0, 0, 0,
897 rectDst.right - rectDst.left, rectDst.bottom - rectDst.top );
898 XDestroyImage( imageSrc );
899 XDestroyImage( imageDst );
900 return 0; /* no exposure events generated */
901 }
902
903
904 /***********************************************************************
905 * BITBLT_GetSrcArea
906 *
907 * Retrieve an area from the source DC, mapping all the
908 * pixels to Windows colors.
909 */
910 static int BITBLT_GetSrcArea( X11DRV_PDEVICE *physDevSrc, X11DRV_PDEVICE *physDevDst,
911 Pixmap pixmap, GC gc, INT xSrc, INT ySrc, RECT *visRectSrc )
912 {
913 XImage *imageSrc, *imageDst;
914 register INT x, y;
915 int exposures = 0;
916 INT width = visRectSrc->right - visRectSrc->left;
917 INT height = visRectSrc->bottom - visRectSrc->top;
918 int fg, bg;
919
920 if (physDevSrc->depth == physDevDst->depth)
921 {
922 if (!X11DRV_PALETTE_XPixelToPalette ||
923 (physDevDst->depth == 1)) /* monochrome -> monochrome */
924 {
925 if (physDevDst->depth == 1)
926 {
927 /* MSDN says if StretchBlt must convert a bitmap from monochrome
928 to color or vice versa, the forground and background color of
929 the device context are used. In fact, it also applies to the
930 case when it is converted from mono to mono. */
931 XSetBackground( gdi_display, gc, physDevDst->textPixel );
932 XSetForeground( gdi_display, gc, physDevDst->backgroundPixel );
933 XCopyPlane( gdi_display, physDevSrc->drawable, pixmap, gc,
934 physDevSrc->dc_rect.left + visRectSrc->left,
935 physDevSrc->dc_rect.top + visRectSrc->top,
936 width, height, 0, 0, 1);
937 }
938 else
939 XCopyArea( gdi_display, physDevSrc->drawable, pixmap, gc,
940 physDevSrc->dc_rect.left + visRectSrc->left,
941 physDevSrc->dc_rect.top + visRectSrc->top,
942 width, height, 0, 0);
943 exposures++;
944 }
945 else /* color -> color */
946 {
947 if (GetObjectType(physDevSrc->hdc) == OBJ_MEMDC)
948 imageSrc = XGetImage( gdi_display, physDevSrc->drawable,
949 physDevSrc->dc_rect.left + visRectSrc->left,
950 physDevSrc->dc_rect.top + visRectSrc->top,
951 width, height, AllPlanes, ZPixmap );
952 else
953 {
954 /* Make sure we don't get a BadMatch error */
955 XCopyArea( gdi_display, physDevSrc->drawable, pixmap, gc,
956 physDevSrc->dc_rect.left + visRectSrc->left,
957 physDevSrc->dc_rect.top + visRectSrc->top,
958 width, height, 0, 0);
959 exposures++;
960 imageSrc = XGetImage( gdi_display, pixmap, 0, 0, width, height,
961 AllPlanes, ZPixmap );
962 }
963 for (y = 0; y < height; y++)
964 for (x = 0; x < width; x++)
965 XPutPixel(imageSrc, x, y,
966 X11DRV_PALETTE_XPixelToPalette[XGetPixel(imageSrc, x, y)]);
967 XPutImage( gdi_display, pixmap, gc, imageSrc,
968 0, 0, 0, 0, width, height );
969 XDestroyImage( imageSrc );
970 }
971 }
972 else
973 {
974 if (physDevSrc->depth == 1) /* monochrome -> color */
975 {
976 get_colors(physDevDst, physDevSrc, &fg, &bg);
977
978 if (X11DRV_PALETTE_XPixelToPalette)
979 {
980 XSetBackground( gdi_display, gc,
981 X11DRV_PALETTE_XPixelToPalette[fg] );
982 XSetForeground( gdi_display, gc,
983 X11DRV_PALETTE_XPixelToPalette[bg]);
984 }
985 else
986 {
987 XSetBackground( gdi_display, gc, fg );
988 XSetForeground( gdi_display, gc, bg );
989 }
990 XCopyPlane( gdi_display, physDevSrc->drawable, pixmap, gc,
991 physDevSrc->dc_rect.left + visRectSrc->left,
992 physDevSrc->dc_rect.top + visRectSrc->top,
993 width, height, 0, 0, 1 );
994 exposures++;
995 }
996 else /* color -> monochrome */
997 {
998 /* FIXME: avoid BadMatch error */
999 imageSrc = XGetImage( gdi_display, physDevSrc->drawable,
1000 physDevSrc->dc_rect.left + visRectSrc->left,
1001 physDevSrc->dc_rect.top + visRectSrc->top,
1002 width, height, AllPlanes, ZPixmap );
1003 if (!imageSrc)
1004 {
1005 return exposures;
1006 }
1007 imageDst = X11DRV_DIB_CreateXImage( width, height, physDevDst->depth );
1008 if (!imageDst)
1009 {
1010 XDestroyImage(imageSrc);
1011 return exposures;
1012 }
1013 for (y = 0; y < height; y++)
1014 for (x = 0; x < width; x++)
1015 XPutPixel(imageDst, x, y, (XGetPixel(imageSrc,x,y) ==
1016 physDevSrc->backgroundPixel) );
1017 XPutImage( gdi_display, pixmap, gc, imageDst,
1018 0, 0, 0, 0, width, height );
1019 XDestroyImage( imageSrc );
1020 XDestroyImage( imageDst );
1021 }
1022 }
1023 return exposures;
1024 }
1025
1026
1027 /***********************************************************************
1028 * BITBLT_GetDstArea
1029 *
1030 * Retrieve an area from the destination DC, mapping all the
1031 * pixels to Windows colors.
1032 */
1033 static int BITBLT_GetDstArea(X11DRV_PDEVICE *physDev, Pixmap pixmap, GC gc, RECT *visRectDst)
1034 {
1035 int exposures = 0;
1036 INT width = visRectDst->right - visRectDst->left;
1037 INT height = visRectDst->bottom - visRectDst->top;
1038
1039 if (!X11DRV_PALETTE_XPixelToPalette || (physDev->depth == 1) ||
1040 (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) )
1041 {
1042 XCopyArea( gdi_display, physDev->drawable, pixmap, gc,
1043 physDev->dc_rect.left + visRectDst->left, physDev->dc_rect.top + visRectDst->top,
1044 width, height, 0, 0 );
1045 exposures++;
1046 }
1047 else
1048 {
1049 register INT x, y;
1050 XImage *image;
1051
1052 if (GetObjectType( physDev->hdc ) == OBJ_MEMDC)
1053 image = XGetImage( gdi_display, physDev->drawable,
1054 physDev->dc_rect.left + visRectDst->left,
1055 physDev->dc_rect.top + visRectDst->top,
1056 width, height, AllPlanes, ZPixmap );
1057 else
1058 {
1059 /* Make sure we don't get a BadMatch error */
1060 XCopyArea( gdi_display, physDev->drawable, pixmap, gc,
1061 physDev->dc_rect.left + visRectDst->left,
1062 physDev->dc_rect.top + visRectDst->top,
1063 width, height, 0, 0);
1064 exposures++;
1065 image = XGetImage( gdi_display, pixmap, 0, 0, width, height,
1066 AllPlanes, ZPixmap );
1067 }
1068 for (y = 0; y < height; y++)
1069 for (x = 0; x < width; x++)
1070 XPutPixel( image, x, y,
1071 X11DRV_PALETTE_XPixelToPalette[XGetPixel( image, x, y )]);
1072 XPutImage( gdi_display, pixmap, gc, image, 0, 0, 0, 0, width, height );
1073 XDestroyImage( image );
1074 }
1075 return exposures;
1076 }
1077
1078
1079 /***********************************************************************
1080 * BITBLT_PutDstArea
1081 *
1082 * Put an area back into the destination DC, mapping the pixel
1083 * colors to X pixels.
1084 */
1085 static int BITBLT_PutDstArea(X11DRV_PDEVICE *physDev, Pixmap pixmap, RECT *visRectDst)
1086 {
1087 int exposures = 0;
1088 INT width = visRectDst->right - visRectDst->left;
1089 INT height = visRectDst->bottom - visRectDst->top;
1090
1091 /* !X11DRV_PALETTE_PaletteToXPixel is _NOT_ enough */
1092
1093 if (!X11DRV_PALETTE_PaletteToXPixel || (physDev->depth == 1) ||
1094 (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) )
1095 {
1096 XCopyArea( gdi_display, pixmap, physDev->drawable, physDev->gc, 0, 0, width, height,
1097 physDev->dc_rect.left + visRectDst->left,
1098 physDev->dc_rect.top + visRectDst->top );
1099 exposures++;
1100 }
1101 else
1102 {
1103 register INT x, y;
1104 XImage *image = XGetImage( gdi_display, pixmap, 0, 0, width, height,
1105 AllPlanes, ZPixmap );
1106 for (y = 0; y < height; y++)
1107 for (x = 0; x < width; x++)
1108 {
1109 XPutPixel( image, x, y,
1110 X11DRV_PALETTE_PaletteToXPixel[XGetPixel( image, x, y )]);
1111 }
1112 XPutImage( gdi_display, physDev->drawable, physDev->gc, image, 0, 0,
1113 physDev->dc_rect.left + visRectDst->left,
1114 physDev->dc_rect.top + visRectDst->top, width, height );
1115 XDestroyImage( image );
1116 }
1117 return exposures;
1118 }
1119
1120
1121 /***********************************************************************
1122 * BITBLT_GetVisRectangles
1123 *
1124 * Get the source and destination visible rectangles for StretchBlt().
1125 * Return FALSE if one of the rectangles is empty.
1126 */
1127 static BOOL BITBLT_GetVisRectangles( X11DRV_PDEVICE *physDevDst, INT xDst, INT yDst,
1128 INT widthDst, INT heightDst,
1129 X11DRV_PDEVICE *physDevSrc, INT xSrc, INT ySrc,
1130 INT widthSrc, INT heightSrc,
1131 RECT *visRectSrc, RECT *visRectDst )
1132 {
1133 RECT rect, clipRect;
1134
1135 /* Get the destination visible rectangle */
1136
1137 rect.left = xDst;
1138 rect.top = yDst;
1139 rect.right = xDst + widthDst;
1140 rect.bottom = yDst + heightDst;
1141 if (widthDst < 0) SWAP_INT32( &rect.left, &rect.right );
1142 if (heightDst < 0) SWAP_INT32( &rect.top, &rect.bottom );
1143 GetRgnBox( physDevDst->region, &clipRect );
1144 if (!IntersectRect( visRectDst, &rect, &clipRect )) return FALSE;
1145
1146 /* Get the source visible rectangle */
1147
1148 if (!physDevSrc) return TRUE;
1149 rect.left = xSrc;
1150 rect.top = ySrc;
1151 rect.right = xSrc + widthSrc;
1152 rect.bottom = ySrc + heightSrc;
1153 if (widthSrc < 0) SWAP_INT32( &rect.left, &rect.right );
1154 if (heightSrc < 0) SWAP_INT32( &rect.top, &rect.bottom );
1155 /* Apparently the clipping and visible regions are only for output,
1156 so just check against dc extent here to avoid BadMatch errors */
1157 clipRect = physDevSrc->drawable_rect;
1158 OffsetRect( &clipRect, -(physDevSrc->drawable_rect.left + physDevSrc->dc_rect.left),
1159 -(physDevSrc->drawable_rect.top + physDevSrc->dc_rect.top) );
1160 if (!IntersectRect( visRectSrc, &rect, &clipRect ))
1161 return FALSE;
1162
1163 /* Intersect the rectangles */
1164
1165 if ((widthSrc == widthDst) && (heightSrc == heightDst)) /* no stretching */
1166 {
1167 visRectSrc->left += xDst - xSrc;
1168 visRectSrc->right += xDst - xSrc;
1169 visRectSrc->top += yDst - ySrc;
1170 visRectSrc->bottom += yDst - ySrc;
1171 if (!IntersectRect( &rect, visRectSrc, visRectDst )) return FALSE;
1172 *visRectSrc = *visRectDst = rect;
1173 visRectSrc->left += xSrc - xDst;
1174 visRectSrc->right += xSrc - xDst;
1175 visRectSrc->top += ySrc - yDst;
1176 visRectSrc->bottom += ySrc - yDst;
1177 }
1178 else /* stretching */
1179 {
1180 /* Map source rectangle into destination coordinates */
1181 rect.left = xDst + (visRectSrc->left - xSrc)*widthDst/widthSrc;
1182 rect.top = yDst + (visRectSrc->top - ySrc)*heightDst/heightSrc;
1183 rect.right = xDst + ((visRectSrc->right - xSrc)*widthDst)/widthSrc;
1184 rect.bottom = yDst + ((visRectSrc->bottom - ySrc)*heightDst)/heightSrc;
1185 if (rect.left > rect.right) SWAP_INT32( &rect.left, &rect.right );
1186 if (rect.top > rect.bottom) SWAP_INT32( &rect.top, &rect.bottom );
1187
1188 /* Avoid rounding errors */
1189 rect.left--;
1190 rect.top--;
1191 rect.right++;
1192 rect.bottom++;
1193 if (!IntersectRect( visRectDst, &rect, visRectDst )) return FALSE;
1194
1195 /* Map destination rectangle back to source coordinates */
1196 rect = *visRectDst;
1197 rect.left = xSrc + (visRectDst->left - xDst)*widthSrc/widthDst;
1198 rect.top = ySrc + (visRectDst->top - yDst)*heightSrc/heightDst;
1199 rect.right = xSrc + ((visRectDst->right - xDst)*widthSrc)/widthDst;
1200 rect.bottom = ySrc + ((visRectDst->bottom - yDst)*heightSrc)/heightDst;
1201 if (rect.left > rect.right) SWAP_INT32( &rect.left, &rect.right );
1202 if (rect.top > rect.bottom) SWAP_INT32( &rect.top, &rect.bottom );
1203
1204 /* Avoid rounding errors */
1205 rect.left--;
1206 rect.top--;
1207 rect.right++;
1208 rect.bottom++;
1209 if (!IntersectRect( visRectSrc, &rect, visRectSrc )) return FALSE;
1210 }
1211 return TRUE;
1212 }
1213
1214
1215 /***********************************************************************
1216 * BITBLT_InternalStretchBlt
1217 *
1218 * Implementation of PatBlt(), BitBlt() and StretchBlt().
1219 */
1220 static BOOL BITBLT_InternalStretchBlt( X11DRV_PDEVICE *physDevDst, INT xDst, INT yDst,
1221 INT widthDst, INT heightDst,
1222 X11DRV_PDEVICE *physDevSrc, INT xSrc, INT ySrc,
1223 INT widthSrc, INT heightSrc,
1224 DWORD rop )
1225 {
1226 BOOL usePat, useSrc, useDst, destUsed, fStretch, fNullBrush;
1227 RECT visRectDst, visRectSrc;
1228 INT width, height;
1229 const BYTE *opcode;
1230 Pixmap pixmaps[3] = { 0, 0, 0 }; /* pixmaps for DST, SRC, TMP */
1231 GC tmpGC = 0;
1232 POINT pts[2];
1233
1234 /* compensate for off-by-one shifting for negative widths and heights */
1235 if (widthDst < 0)
1236 ++xDst;
1237 if (heightDst < 0)
1238 ++yDst;
1239 if (widthSrc < 0)
1240 ++xSrc;
1241 if (heightSrc < 0)
1242 ++ySrc;
1243
1244 usePat = (((rop >> 4) & 0x0f0000) != (rop & 0x0f0000));
1245 useSrc = (((rop >> 2) & 0x330000) != (rop & 0x330000));
1246 useDst = (((rop >> 1) & 0x550000) != (rop & 0x550000));
1247 if (!physDevSrc && useSrc) return FALSE;
1248
1249 /* Map the coordinates to device coords */
1250
1251 pts[0].x = xDst;
1252 pts[0].y = yDst;
1253 pts[1].x = xDst + widthDst;
1254 pts[1].y = yDst + heightDst;
1255 LPtoDP(physDevDst->hdc, pts, 2);
1256 xDst = pts[0].x;
1257 yDst = pts[0].y;
1258 widthDst = pts[1].x - pts[0].x;
1259 heightDst = pts[1].y - pts[0].y;
1260
1261 TRACE(" rectdst=%d,%d-%d,%d orgdst=%d,%d\n",
1262 xDst, yDst, widthDst, heightDst,
1263 physDevDst->dc_rect.left, physDevDst->dc_rect.top );
1264
1265 if (useSrc)
1266 {
1267 pts[0].x = xSrc;
1268 pts[0].y = ySrc;
1269 pts[1].x = xSrc + widthSrc;
1270 pts[1].y = ySrc + heightSrc;
1271 LPtoDP(physDevSrc->hdc, pts, 2);
1272 xSrc = pts[0].x;
1273 ySrc = pts[0].y;
1274 widthSrc = pts[1].x - pts[0].x;
1275 heightSrc = pts[1].y - pts[0].y;
1276
1277 fStretch = (widthSrc != widthDst) || (heightSrc != heightDst);
1278 TRACE(" rectsrc=%d,%d-%d,%d orgsrc=%d,%d\n",
1279 xSrc, ySrc, widthSrc, heightSrc,
1280 physDevSrc->dc_rect.left, physDevSrc->dc_rect.top );
1281 if (!BITBLT_GetVisRectangles( physDevDst, xDst, yDst, widthDst, heightDst,
1282 physDevSrc, xSrc, ySrc, widthSrc, heightSrc,
1283 &visRectSrc, &visRectDst ))
1284 return TRUE;
1285 TRACE(" vissrc=%d,%d-%d,%d visdst=%d,%d-%d,%d\n",
1286 visRectSrc.left, visRectSrc.top,
1287 visRectSrc.right, visRectSrc.bottom,
1288 visRectDst.left, visRectDst.top,
1289 visRectDst.right, visRectDst.bottom );
1290 }
1291 else
1292 {
1293 fStretch = FALSE;
1294 if (!BITBLT_GetVisRectangles( physDevDst, xDst, yDst, widthDst, heightDst,
1295 NULL, 0, 0, 0, 0, NULL, &visRectDst ))
1296 return TRUE;
1297 TRACE(" vissrc=none visdst=%d,%d-%d,%d\n",
1298 visRectDst.left, visRectDst.top,
1299 visRectDst.right, visRectDst.bottom );
1300 }
1301
1302 width = visRectDst.right - visRectDst.left;
1303 height = visRectDst.bottom - visRectDst.top;
1304
1305 if (!fStretch) switch(rop) /* A few optimisations */
1306 {
1307 case BLACKNESS: /* 0x00 */
1308 wine_tsx11_lock();
1309 if ((physDevDst->depth == 1) || !X11DRV_PALETTE_PaletteToXPixel)
1310 XSetFunction( gdi_display, physDevDst->gc, GXclear );
1311 else
1312 {
1313 XSetFunction( gdi_display, physDevDst->gc, GXcopy );
1314 XSetForeground( gdi_display, physDevDst->gc, X11DRV_PALETTE_PaletteToXPixel[0] );
1315 XSetFillStyle( gdi_display, physDevDst->gc, FillSolid );
1316 }
1317 XFillRectangle( gdi_display, physDevDst->drawable, physDevDst->gc,
1318 physDevDst->dc_rect.left + visRectDst.left,
1319 physDevDst->dc_rect.top + visRectDst.top,
1320 width, height );
1321 wine_tsx11_unlock();
1322 return TRUE;
1323
1324 case DSTINVERT: /* 0x55 */
1325 wine_tsx11_lock();
1326 XSetFunction( gdi_display, physDevDst->gc, GXinvert );
1327
1328 if( X11DRV_PALETTE_PaletteFlags & (X11DRV_PALETTE_PRIVATE | X11DRV_PALETTE_VIRTUAL) )
1329 XSetFunction( gdi_display, physDevDst->gc, GXinvert);
1330 else
1331 {
1332 /* Xor is much better when we do not have full colormap. */
1333 /* Using white^black ensures that we invert at least black */
1334 /* and white. */
1335 unsigned long xor_pix = (WhitePixel( gdi_display, DefaultScreen(gdi_display) ) ^
1336 BlackPixel( gdi_display, DefaultScreen(gdi_display) ));
1337 XSetFunction( gdi_display, physDevDst->gc, GXxor );
1338 XSetForeground( gdi_display, physDevDst->gc, xor_pix);
1339 XSetFillStyle( gdi_display, physDevDst->gc, FillSolid );
1340 }
1341 XFillRectangle( gdi_display, physDevDst->drawable, physDevDst->gc,
1342 physDevDst->dc_rect.left + visRectDst.left,
1343 physDevDst->dc_rect.top + visRectDst.top,
1344 width, height );
1345 wine_tsx11_unlock();
1346 return TRUE;
1347
1348 case PATINVERT: /* 0x5a */
1349 if (X11DRV_SetupGCForBrush( physDevDst ))
1350 {
1351 wine_tsx11_lock();
1352 XSetFunction( gdi_display, physDevDst->gc, GXxor );
1353 XFillRectangle( gdi_display, physDevDst->drawable, physDevDst->gc,
1354 physDevDst->dc_rect.left + visRectDst.left,
1355 physDevDst->dc_rect.top + visRectDst.top,
1356 width, height );
1357 wine_tsx11_unlock();
1358 }
1359 return TRUE;
1360
1361 case 0xa50065:
1362 if (X11DRV_SetupGCForBrush( physDevDst ))
1363 {
1364 wine_tsx11_lock();
1365 XSetFunction( gdi_display, physDevDst->gc, GXequiv );
1366 XFillRectangle( gdi_display, physDevDst->drawable, physDevDst->gc,
1367 physDevDst->dc_rect.left + visRectDst.left,
1368 physDevDst->dc_rect.top + visRectDst.top,
1369 width, height );
1370 wine_tsx11_unlock();
1371 }
1372 return TRUE;
1373
1374 case SRCCOPY: /* 0xcc */
1375 if (physDevSrc->depth == physDevDst->depth)
1376 {
1377 wine_tsx11_lock();
1378 XSetFunction( gdi_display, physDevDst->gc, GXcopy );
1379 XCopyArea( gdi_display, physDevSrc->drawable,
1380 physDevDst->drawable, physDevDst->gc,
1381 physDevSrc->dc_rect.left + visRectSrc.left,
1382 physDevSrc->dc_rect.top + visRectSrc.top,
1383 width, height,
1384 physDevDst->dc_rect.left + visRectDst.left,
1385 physDevDst->dc_rect.top + visRectDst.top );
1386 physDevDst->exposures++;
1387 wine_tsx11_unlock();
1388 return TRUE;
1389 }
1390
1391 if (physDevSrc->depth == 1)
1392 {
1393 int fg, bg;
1394 get_colors(physDevDst, physDevSrc, &fg, &bg);
1395 wine_tsx11_lock();
1396
1397 XSetBackground( gdi_display, physDevDst->gc, fg );
1398 XSetForeground( gdi_display, physDevDst->gc, bg );
1399 XSetFunction( gdi_display, physDevDst->gc, GXcopy );
1400 XCopyPlane( gdi_display, physDevSrc->drawable,
1401 physDevDst->drawable, physDevDst->gc,
1402 physDevSrc->dc_rect.left + visRectSrc.left,
1403 physDevSrc->dc_rect.top + visRectSrc.top,
1404 width, height,
1405 physDevDst->dc_rect.left + visRectDst.left,
1406 physDevDst->dc_rect.top + visRectDst.top, 1 );
1407 physDevDst->exposures++;
1408 wine_tsx11_unlock();
1409 return TRUE;
1410 }
1411 break;
1412
1413 case PATCOPY: /* 0xf0 */
1414 if (!X11DRV_SetupGCForBrush( physDevDst )) return TRUE;
1415 wine_tsx11_lock();
1416 XSetFunction( gdi_display, physDevDst->gc, GXcopy );
1417 XFillRectangle( gdi_display, physDevDst->drawable, physDevDst->gc,
1418 physDevDst->dc_rect.left + visRectDst.left,
1419 physDevDst->dc_rect.top + visRectDst.top,
1420 width, height );
1421 wine_tsx11_unlock();
1422 return TRUE;
1423
1424 case WHITENESS: /* 0xff */
1425 wine_tsx11_lock();
1426 if ((physDevDst->depth == 1) || !X11DRV_PALETTE_PaletteToXPixel)
1427 XSetFunction( gdi_display, physDevDst->gc, GXset );
1428 else
1429 {
1430 XSetFunction( gdi_display, physDevDst->gc, GXcopy );
1431 XSetForeground( gdi_display, physDevDst->gc,
1432 WhitePixel( gdi_display, DefaultScreen(gdi_display) ));
1433 XSetFillStyle( gdi_display, physDevDst->gc, FillSolid );
1434 }
1435 XFillRectangle( gdi_display, physDevDst->drawable, physDevDst->gc,
1436 physDevDst->dc_rect.left + visRectDst.left,
1437 physDevDst->dc_rect.top + visRectDst.top,
1438 width, height );
1439 wine_tsx11_unlock();
1440 return TRUE;
1441 }
1442
1443 wine_tsx11_lock();
1444
1445 tmpGC = XCreateGC( gdi_display, physDevDst->drawable, 0, NULL );
1446 XSetSubwindowMode( gdi_display, tmpGC, IncludeInferiors );
1447 XSetGraphicsExposures( gdi_display, tmpGC, False );
1448 pixmaps[DST] = XCreatePixmap( gdi_display, root_window, width, height,
1449 physDevDst->depth );
1450 if (useSrc)
1451 {
1452 pixmaps[SRC] = XCreatePixmap( gdi_display, root_window, width, height,
1453 physDevDst->depth );
1454 if (fStretch)
1455 BITBLT_GetSrcAreaStretch( physDevSrc, physDevDst, pixmaps[SRC], tmpGC,
1456 xSrc, ySrc, widthSrc, heightSrc,
1457 xDst, yDst, widthDst, heightDst,
1458 &visRectSrc, &visRectDst );
1459 else
1460 BITBLT_GetSrcArea( physDevSrc, physDevDst, pixmaps[SRC], tmpGC,
1461 xSrc, ySrc, &visRectSrc );
1462 }
1463
1464 if (useDst) BITBLT_GetDstArea( physDevDst, pixmaps[DST], tmpGC, &visRectDst );
1465 if (usePat) fNullBrush = !X11DRV_SetupGCForPatBlt( physDevDst, tmpGC, TRUE );
1466 else fNullBrush = FALSE;
1467 destUsed = FALSE;
1468
1469 for (opcode = BITBLT_Opcodes[(rop >> 16) & 0xff]; *opcode; opcode++)
1470 {
1471 if (OP_DST(*opcode) == DST) destUsed = TRUE;
1472 XSetFunction( gdi_display, tmpGC, OP_ROP(*opcode) );
1473 switch(OP_SRCDST(*opcode))
1474 {
1475 case OP_ARGS(DST,TMP):
1476 case OP_ARGS(SRC,TMP):
1477 if (!pixmaps[TMP])
1478 pixmaps[TMP] = XCreatePixmap( gdi_display, root_window,
1479 width, height, physDevDst->depth );
1480 /* fall through */
1481 case OP_ARGS(DST,SRC):
1482 case OP_ARGS(SRC,DST):
1483 case OP_ARGS(TMP,SRC):
1484 case OP_ARGS(TMP,DST):
1485 if (useSrc)
1486 XCopyArea( gdi_display, pixmaps[OP_SRC(*opcode)],
1487 pixmaps[OP_DST(*opcode)], tmpGC,
1488 0, 0, width, height, 0, 0 );
1489 break;
1490
1491 case OP_ARGS(PAT,TMP):
1492 if (!pixmaps[TMP] && !fNullBrush)
1493 pixmaps[TMP] = XCreatePixmap( gdi_display, root_window,
1494 width, height, physDevDst->depth );
1495 /* fall through */
1496 case OP_ARGS(PAT,DST):
1497 case OP_ARGS(PAT,SRC):
1498 if (!fNullBrush)
1499 XFillRectangle( gdi_display, pixmaps[OP_DST(*opcode)],
1500 tmpGC, 0, 0, width, height );
1501 break;
1502 }
1503 }
1504 XSetFunction( gdi_display, physDevDst->gc, GXcopy );
1505 physDevDst->exposures += BITBLT_PutDstArea( physDevDst, pixmaps[destUsed ? DST : SRC],
1506 &visRectDst );
1507 XFreePixmap( gdi_display, pixmaps[DST] );
1508 if (pixmaps[SRC]) XFreePixmap( gdi_display, pixmaps[SRC] );
1509 if (pixmaps[TMP]) XFreePixmap( gdi_display, pixmaps[TMP] );
1510 XFreeGC( gdi_display, tmpGC );
1511 wine_tsx11_unlock();
1512 return TRUE;
1513 }
1514
1515
1516 /***********************************************************************
1517 * X11DRV_PatBlt
1518 */
1519 BOOL X11DRV_PatBlt( X11DRV_PDEVICE *physDev, INT left, INT top, INT width, INT height, DWORD rop )
1520 {
1521 BOOL result;
1522
1523 X11DRV_LockDIBSection( physDev, DIB_Status_GdiMod, FALSE );
1524 result = BITBLT_InternalStretchBlt( physDev, left, top, width, height, NULL, 0, 0, 0, 0, rop );
1525 X11DRV_UnlockDIBSection( physDev, TRUE );
1526 return result;
1527 }
1528
1529
1530 /***********************************************************************
1531 * X11DRV_ClientSideDIBCopy
1532 */
1533 static BOOL X11DRV_ClientSideDIBCopy( X11DRV_PDEVICE *physDevSrc, INT xSrc, INT ySrc,
1534 X11DRV_PDEVICE *physDevDst, INT xDst, INT yDst,
1535 INT width, INT height )
1536 {
1537 DIBSECTION srcDib, dstDib;
1538 BYTE *srcPtr, *dstPtr;
1539 INT srcRowOffset, dstRowOffset;
1540 INT bytesPerPixel;
1541 INT bytesToCopy;
1542 INT y;
1543 static RECT unusedRect;
1544
1545 if (GetObjectW(physDevSrc->bitmap->hbitmap, sizeof(srcDib), &srcDib) != sizeof(srcDib))
1546 return FALSE;
1547 if (GetObjectW(physDevDst->bitmap->hbitmap, sizeof(dstDib), &dstDib) != sizeof(dstDib))
1548 return FALSE;
1549
1550 /* check for oversized values, just like X11DRV_DIB_CopyDIBSection() */
1551 if (xSrc > srcDib.dsBm.bmWidth || ySrc > srcDib.dsBm.bmHeight)
1552 return FALSE;
1553 if (xSrc + width > srcDib.dsBm.bmWidth)
1554 width = srcDib.dsBm.bmWidth - xSrc;
1555 if (ySrc + height > srcDib.dsBm.bmHeight)
1556 height = srcDib.dsBm.bmHeight - ySrc;
1557
1558 if (GetRgnBox(physDevSrc->region, &unusedRect) == COMPLEXREGION ||
1559 GetRgnBox(physDevDst->region, &unusedRect) == COMPLEXREGION)
1560 {
1561 /* for simple regions, the clipping was already done by BITBLT_GetVisRectangles */
1562 FIXME("potential optimization: client-side complex region clipping\n");
1563 return FALSE;
1564 }
1565 if (dstDib.dsBm.bmBitsPixel <= 8)
1566 {
1567 FIXME("potential optimization: client-side color-index mode DIB copy\n");
1568 return FALSE;
1569 }
1570 if (!(srcDib.dsBmih.biCompression == BI_BITFIELDS &&
1571 dstDib.dsBmih.biCompression == BI_BITFIELDS &&
1572 !memcmp(srcDib.dsBitfields, dstDib.dsBitfields, 3*sizeof(DWORD)))
1573 && !(srcDib.dsBmih.biCompression == BI_RGB &&
1574 dstDib.dsBmih.biCompression == BI_RGB))
1575 {
1576 FIXME("potential optimization: client-side compressed DIB copy\n");
1577 return FALSE;
1578 }
1579 if (srcDib.dsBm.bmBitsPixel != dstDib.dsBm.bmBitsPixel)
1580 {
1581 FIXME("potential optimization: pixel format conversion\n");
1582 return FALSE;
1583 }
1584 if (srcDib.dsBmih.biWidth < 0 || dstDib.dsBmih.biWidth < 0)
1585 {
1586 FIXME("negative widths not yet implemented\n");
1587 return FALSE;
1588 }
1589
1590 switch (dstDib.dsBm.bmBitsPixel)
1591 {
1592 case 15:
1593 case 16:
1594 bytesPerPixel = 2;
1595 break;
1596 case 24:
1597 bytesPerPixel = 3;
1598 break;
1599 case 32:
1600 bytesPerPixel = 4;
1601 break;
1602 default:
1603 FIXME("don't know how to work with a depth of %d\n", physDevSrc->depth);
1604 return FALSE;
1605 }
1606
1607 bytesToCopy = width * bytesPerPixel;
1608
1609 if (srcDib.dsBmih.biHeight < 0)
1610 {
1611 srcPtr = &physDevSrc->bitmap->base[ySrc*srcDib.dsBm.bmWidthBytes + xSrc*bytesPerPixel];
1612 srcRowOffset = srcDib.dsBm.bmWidthBytes;
1613 }
1614 else
1615 {
1616 srcPtr = &physDevSrc->bitmap->base[(srcDib.dsBm.bmHeight-ySrc-1)*srcDib.dsBm.bmWidthBytes
1617 + xSrc*bytesPerPixel];
1618 srcRowOffset = -srcDib.dsBm.bmWidthBytes;
1619 }
1620 if (dstDib.dsBmih.biHeight < 0)
1621 {
1622 dstPtr = &physDevDst->bitmap->base[yDst*dstDib.dsBm.bmWidthBytes + xDst*bytesPerPixel];
1623 dstRowOffset = dstDib.dsBm.bmWidthBytes;
1624 }
1625 else
1626 {
1627 dstPtr = &physDevDst->bitmap->base[(dstDib.dsBm.bmHeight-yDst-1)*dstDib.dsBm.bmWidthBytes
1628 + xDst*bytesPerPixel];
1629 dstRowOffset = -dstDib.dsBm.bmWidthBytes;
1630 }
1631
1632 for (y = yDst; y < yDst + height; ++y)
1633 {
1634 memcpy(dstPtr, srcPtr, bytesToCopy);
1635 srcPtr += srcRowOffset;
1636 dstPtr += dstRowOffset;
1637 }
1638
1639 return TRUE;
1640 }
1641
1642
1643 /***********************************************************************
1644 * X11DRV_BitBlt
1645 */
1646 BOOL X11DRV_BitBlt( X11DRV_PDEVICE *physDevDst, INT xDst, INT yDst,
1647 INT width, INT height, X11DRV_PDEVICE *physDevSrc,
1648 INT xSrc, INT ySrc, DWORD rop )
1649 {
1650 BOOL result = FALSE;
1651 INT sSrc, sDst;
1652 RECT visRectDst, visRectSrc;
1653
1654 if (((rop >> 16) & 0x55) == ((rop >> 17) & 0x55)) {
1655 /* FIXME: seems the ROP doesn't include destination;
1656 * now if the destination area include the entire dcDst,
1657 * we can pass TRUE instead of FALSE to CoerceDIBSection(dcDst...),
1658 * which may avoid a copy in some situations */
1659 }
1660
1661 sDst = X11DRV_LockDIBSection( physDevDst, DIB_Status_None, FALSE );
1662 if (physDevDst != physDevSrc)
1663 sSrc = X11DRV_LockDIBSection( physDevSrc, DIB_Status_None, FALSE );
1664 else
1665 sSrc = sDst;
1666
1667 if ((sSrc == DIB_Status_AppMod) && (rop == SRCCOPY) &&
1668 (physDevSrc->depth == physDevDst->depth))
1669 {
1670 POINT pts[2];
1671 /* do everything ourselves; map coordinates */
1672
1673 pts[0].x = xSrc;
1674 pts[0].y = ySrc;
1675 pts[1].x = xSrc + width;
1676 pts[1].y = ySrc + height;
1677
1678 LPtoDP(physDevSrc->hdc, pts, 2);
1679 width = pts[1].x - pts[0].x;
1680 height = pts[1].y - pts[0].y;
1681 xSrc = pts[0].x;
1682 ySrc = pts[0].y;
1683
1684 pts[0].x = xDst;
1685 pts[0].y = yDst;
1686 LPtoDP(physDevDst->hdc, pts, 1);
1687
1688 xDst = pts[0].x;
1689 yDst = pts[0].y;
1690
1691 /* Perform basic clipping */
1692 if (!BITBLT_GetVisRectangles( physDevDst, xDst, yDst, width, height,
1693 physDevSrc, xSrc, ySrc, width, height,
1694 &visRectSrc, &visRectDst ))
1695 goto END;
1696
1697 xSrc = visRectSrc.left;
1698 ySrc = visRectSrc.top;
1699 xDst = visRectDst.left;
1700 yDst = visRectDst.top;
1701 width = visRectDst.right - visRectDst.left;
1702 height = visRectDst.bottom - visRectDst.top;
1703
1704 if (sDst == DIB_Status_AppMod) {
1705 result = X11DRV_ClientSideDIBCopy( physDevSrc, xSrc, ySrc,
1706 physDevDst, xDst, yDst,
1707 width, height );
1708 if (result)
1709 goto END;
1710 /* fall back to X server copying */
1711 }
1712 X11DRV_CoerceDIBSection( physDevDst, DIB_Status_GdiMod, FALSE );
1713
1714 wine_tsx11_lock();
1715 XSetFunction( gdi_display, physDevDst->gc, GXcopy );
1716 wine_tsx11_unlock();
1717
1718 X11DRV_DIB_CopyDIBSection( physDevSrc, physDevDst, xSrc, ySrc, xDst, yDst, width, height );
1719 result = TRUE;
1720 goto END;
1721 }
1722
1723 X11DRV_CoerceDIBSection( physDevDst, DIB_Status_GdiMod, FALSE );
1724 if (physDevDst != physDevSrc)
1725 X11DRV_CoerceDIBSection( physDevSrc, DIB_Status_GdiMod, FALSE );
1726
1727 result = BITBLT_InternalStretchBlt( physDevDst, xDst, yDst, width, height,
1728 physDevSrc, xSrc, ySrc, width, height, rop );
1729
1730 END:
1731 if (physDevDst != physDevSrc)
1732 X11DRV_UnlockDIBSection( physDevSrc, FALSE );
1733 X11DRV_UnlockDIBSection( physDevDst, TRUE );
1734
1735 return result;
1736 }
1737
1738
1739 /***********************************************************************
1740 * X11DRV_StretchBlt
1741 */
1742 BOOL X11DRV_StretchBlt( X11DRV_PDEVICE *physDevDst, INT xDst, INT yDst,
1743 INT widthDst, INT heightDst,
1744 X11DRV_PDEVICE *physDevSrc, INT xSrc, INT ySrc,
1745 INT widthSrc, INT heightSrc, DWORD rop )
1746 {
1747 BOOL result;
1748
1749 X11DRV_LockDIBSection( physDevDst, DIB_Status_GdiMod, FALSE );
1750 if (physDevDst != physDevSrc)
1751 X11DRV_LockDIBSection( physDevSrc, DIB_Status_GdiMod, FALSE );
1752
1753 result = BITBLT_InternalStretchBlt( physDevDst, xDst, yDst, widthDst, heightDst,
1754 physDevSrc, xSrc, ySrc, widthSrc, heightSrc, rop );
1755
1756 if (physDevDst != physDevSrc)
1757 X11DRV_UnlockDIBSection( physDevSrc, FALSE );
1758 X11DRV_UnlockDIBSection( physDevDst, TRUE );
1759 return result;
1760 }
useful hacks and other patches not (yet) suitable for mainline