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Release 961222
[wine/multimedia.git] / graphics / x11drv / bitblt.c
blobc4b4f8c5bef5f9cdc2531e1ef5efd8324904d789
1 /*
2 * GDI bit-blit operations
3 *
4 * Copyright 1993, 1994 Alexandre Julliard
5 */
6
7 #include <assert.h>
8 #include <stdio.h>
9 #include <stdlib.h>
10 #include <X11/Xlib.h>
11 #include <X11/Intrinsic.h>
12 #include "bitmap.h"
13 #include "callback.h"
14 #include "color.h"
15 #include "dc.h"
16 #include "metafile.h"
17 #include "options.h"
18 #include "x11drv.h"
19 #include "stddebug.h"
20 #include "debug.h"
21 #include "xmalloc.h"
22
23
24 #define DST 0 /* Destination drawable */
25 #define SRC 1 /* Source drawable */
26 #define TMP 2 /* Temporary drawable */
27 #define PAT 3 /* Pattern (brush) in destination DC */
28
29 #define OP(src,dst,rop) (OP_ARGS(src,dst) << 4 | (rop))
30 #define OP_ARGS(src,dst) (((src) << 2) | (dst))
31
32 #define OP_SRC(opcode) ((opcode) >> 6)
33 #define OP_DST(opcode) (((opcode) >> 4) & 3)
34 #define OP_SRCDST(opcode) ((opcode) >> 4)
35 #define OP_ROP(opcode) ((opcode) & 0x0f)
36
37 #define MAX_OP_LEN 6 /* Longest opcode + 1 for the terminating 0 */
38
39 #define SWAP_INT32(i1,i2) \
40 do { INT32 __t = *(i1); *(i1) = *(i2); *(i2) = __t; } while(0)
41
42 extern void CLIPPING_UpdateGCRegion(DC* );
43
44 static const unsigned char BITBLT_Opcodes[256][MAX_OP_LEN] =
45 {
46 { OP(PAT,DST,GXclear) }, /* 0x00 0 */
47 { OP(PAT,SRC,GXor), OP(SRC,DST,GXnor) }, /* 0x01 ~(D|(P|S)) */
48 { OP(PAT,SRC,GXnor), OP(SRC,DST,GXand) }, /* 0x02 D&~(P|S) */
49 { OP(PAT,SRC,GXnor) }, /* 0x03 ~(P|S) */
50 { OP(PAT,DST,GXnor), OP(SRC,DST,GXand) }, /* 0x04 S&~(D|P) */
51 { OP(PAT,DST,GXnor) }, /* 0x05 ~(D|P) */
52 { OP(SRC,DST,GXequiv), OP(PAT,DST,GXnor), }, /* 0x06 ~(P|~(D^S)) */
53 { OP(SRC,DST,GXand), OP(PAT,DST,GXnor) }, /* 0x07 ~(P|(D&S)) */
54 { OP(PAT,DST,GXandInverted), OP(SRC,DST,GXand) },/* 0x08 S&D&~P */
55 { OP(SRC,DST,GXxor), OP(PAT,DST,GXnor) }, /* 0x09 ~(P|(D^S)) */
56 { OP(PAT,DST,GXandInverted) }, /* 0x0a D&~P */
57 { OP(SRC,DST,GXandReverse), OP(PAT,DST,GXnor) }, /* 0x0b ~(P|(S&~D)) */
58 { OP(PAT,SRC,GXandInverted) }, /* 0x0c S&~P */
59 { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXnor) },/* 0x0d ~(P|(D&~S)) */
60 { OP(SRC,DST,GXnor), OP(PAT,DST,GXnor) }, /* 0x0e ~(P|~(D|S)) */
61 { OP(PAT,DST,GXcopyInverted) }, /* 0x0f ~P */
62 { OP(SRC,DST,GXnor), OP(PAT,DST,GXand) }, /* 0x10 P&~(S|D) */
63 { OP(SRC,DST,GXnor) }, /* 0x11 ~(D|S) */
64 { OP(PAT,DST,GXequiv), OP(SRC,DST,GXnor) }, /* 0x12 ~(S|~(D^P)) */
65 { OP(PAT,DST,GXand), OP(SRC,DST,GXnor) }, /* 0x13 ~(S|(D&P)) */
66 { OP(PAT,SRC,GXequiv), OP(SRC,DST,GXnor) }, /* 0x14 ~(D|~(P^S)) */
67 { OP(PAT,SRC,GXand), OP(SRC,DST,GXnor) }, /* 0x15 ~(D|(P&S)) */
68 { OP(SRC,TMP,GXcopy), OP(PAT,TMP,GXnand),
69 OP(TMP,DST,GXand), OP(SRC,DST,GXxor),
70 OP(PAT,DST,GXxor) }, /* 0x16 P^S^(D&~(P&S) */
71 { OP(SRC,TMP,GXcopy), OP(SRC,DST,GXxor),
72 OP(PAT,SRC,GXxor), OP(SRC,DST,GXand),
73 OP(TMP,DST,GXequiv) }, /* 0x17 ~S^((S^P)&(S^D))*/
74 { OP(PAT,SRC,GXxor), OP(PAT,DST,GXxor),
75 OP(SRC,DST,GXand) }, /* 0x18 (S^P)&(D^P) */
76 { OP(SRC,TMP,GXcopy), OP(PAT,TMP,GXnand),
77 OP(TMP,DST,GXand), OP(SRC,DST,GXequiv) }, /* 0x19 ~S^(D&~(P&S)) */
78 { OP(PAT,SRC,GXand), OP(SRC,DST,GXor),
79 OP(PAT,DST,GXxor) }, /* 0x1a P^(D|(S&P)) */
80 { OP(SRC,TMP,GXcopy), OP(PAT,TMP,GXxor),
81 OP(TMP,DST,GXand), OP(SRC,DST,GXequiv) }, /* 0x1b ~S^(D&(P^S)) */
82 { OP(PAT,DST,GXand), OP(SRC,DST,GXor),
83 OP(PAT,DST,GXxor) }, /* 0x1c P^(S|(D&P)) */
84 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXxor),
85 OP(SRC,DST,GXand), OP(TMP,DST,GXequiv) }, /* 0x1d ~D^(S&(D^P)) */
86 { OP(SRC,DST,GXor), OP(PAT,DST,GXxor) }, /* 0x1e P^(D|S) */
87 { OP(SRC,DST,GXor), OP(PAT,DST,GXnand) }, /* 0x1f ~(P&(D|S)) */
88 { OP(PAT,SRC,GXandReverse), OP(SRC,DST,GXand) }, /* 0x20 D&(P&~S) */
89 { OP(PAT,DST,GXxor), OP(SRC,DST,GXnor) }, /* 0x21 ~(S|(D^P)) */
90 { OP(SRC,DST,GXandInverted) }, /* 0x22 ~S&D */
91 { OP(PAT,DST,GXandReverse), OP(SRC,DST,GXnor) }, /* 0x23 ~(S|(P&~D)) */
92 { OP(SRC,DST,GXxor), OP(PAT,SRC,GXxor),
93 OP(SRC,DST,GXand) }, /* 0x24 (S^P)&(S^D) */
94 { OP(PAT,SRC,GXnand), OP(SRC,DST,GXand),
95 OP(PAT,DST,GXequiv) }, /* 0x25 ~P^(D&~(S&P)) */
96 { OP(SRC,TMP,GXcopy), OP(PAT,TMP,GXand),
97 OP(TMP,DST,GXor), OP(SRC,DST,GXxor) }, /* 0x26 S^(D|(S&P)) */
98 { OP(SRC,TMP,GXcopy), OP(PAT,TMP,GXequiv),
99 OP(TMP,DST,GXor), OP(SRC,DST,GXxor) }, /* 0x27 S^(D|~(P^S)) */
100 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXand) }, /* 0x28 D&(P^S) */
101 { OP(SRC,TMP,GXcopy), OP(PAT,TMP,GXand),
102 OP(TMP,DST,GXor), OP(SRC,DST,GXxor),
103 OP(PAT,DST,GXequiv) }, /* 0x29 ~P^S^(D|(P&S)) */
104 { OP(PAT,SRC,GXnand), OP(SRC,DST,GXand) }, /* 0x2a D&~(P&S) */
105 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
106 OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
107 OP(TMP,DST,GXequiv) }, /* 0x2b ~S^((P^S)&(P^D))*/
108 { OP(SRC,DST,GXor), OP(PAT,DST,GXand),
109 OP(SRC,DST,GXxor) }, /* 0x2c S^(P&(S|D)) */
110 { OP(SRC,DST,GXorReverse), OP(PAT,DST,GXxor) }, /* 0x2d P^(S|~D) */
111 { OP(PAT,DST,GXxor), OP(SRC,DST,GXor),
112 OP(PAT,DST,GXxor) }, /* 0x2e P^(S|(D^P)) */
113 { OP(SRC,DST,GXorReverse), OP(PAT,DST,GXnand) }, /* 0x2f ~(P&(S|~D)) */
114 { OP(PAT,SRC,GXandReverse) }, /* 0x30 P&~S */
115 { OP(PAT,DST,GXandInverted), OP(SRC,DST,GXnor) },/* 0x31 ~(S|(D&~P)) */
116 { OP(SRC,DST,GXor), OP(PAT,DST,GXor),
117 OP(SRC,DST,GXxor) }, /* 0x32 S^(D|P|S) */
118 { OP(SRC,DST,GXcopyInverted) }, /* 0x33 ~S */
119 { OP(SRC,DST,GXand), OP(PAT,DST,GXor),
120 OP(SRC,DST,GXxor) }, /* 0x34 S^(P|(D&S)) */
121 { OP(SRC,DST,GXequiv), OP(PAT,DST,GXor),
122 OP(SRC,DST,GXxor) }, /* 0x35 S^(P|~(D^S)) */
123 { OP(PAT,DST,GXor), OP(SRC,DST,GXxor) }, /* 0x36 S^(D|P) */
124 { OP(PAT,DST,GXor), OP(SRC,DST,GXnand) }, /* 0x37 ~(S&(D|P)) */
125 { OP(PAT,DST,GXor), OP(SRC,DST,GXand),
126 OP(PAT,DST,GXxor) }, /* 0x38 P^(S&(D|P)) */
127 { OP(PAT,DST,GXorReverse), OP(SRC,DST,GXxor) }, /* 0x39 S^(P|~D) */
128 { OP(SRC,DST,GXxor), OP(PAT,DST,GXor),
129 OP(SRC,DST,GXxor) }, /* 0x3a S^(P|(D^S)) */
130 { OP(PAT,DST,GXorReverse), OP(SRC,DST,GXnand) }, /* 0x3b ~(S&(P|~D)) */
131 { OP(PAT,SRC,GXxor) }, /* 0x3c P^S */
132 { OP(SRC,DST,GXnor), OP(PAT,DST,GXor),
133 OP(SRC,DST,GXxor) }, /* 0x3d S^(P|~(D|S)) */
134 { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXor),
135 OP(SRC,DST,GXxor) }, /* 0x3e S^(P|(D&~S)) */
136 { OP(PAT,SRC,GXnand) }, /* 0x3f ~(P&S) */
137 { OP(SRC,DST,GXandReverse), OP(PAT,DST,GXand) }, /* 0x40 P&S&~D */
138 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXnor) }, /* 0x41 ~(D|(P^S)) */
139 { OP(DST,SRC,GXxor), OP(PAT,DST,GXxor),
140 OP(SRC,DST,GXand) }, /* 0x42 (S^D)&(P^D) */
141 { OP(SRC,DST,GXnand), OP(PAT,DST,GXand),
142 OP(SRC,DST,GXequiv) }, /* 0x43 ~S^(P&~(D&S)) */
143 { OP(SRC,DST,GXandReverse) }, /* 0x44 S&~D */
144 { OP(PAT,SRC,GXandReverse), OP(SRC,DST,GXnor) }, /* 0x45 ~(D|(P&~S)) */
145 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXand),
146 OP(SRC,DST,GXor), OP(TMP,DST,GXxor) }, /* 0x46 D^(S|(P&D)) */
147 { OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
148 OP(PAT,DST,GXequiv) }, /* 0x47 ~P^(S&(D^P)) */
149 { OP(PAT,DST,GXxor), OP(SRC,DST,GXand) }, /* 0x48 S&(P^D) */
150 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXand),
151 OP(SRC,DST,GXor), OP(TMP,DST,GXxor),
152 OP(PAT,DST,GXequiv) }, /* 0x49 ~P^D^(S|(P&D)) */
153 { OP(DST,SRC,GXor), OP(PAT,SRC,GXand),
154 OP(SRC,DST,GXxor) }, /* 0x4a D^(P&(S|D)) */
155 { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXxor) }, /* 0x4b P^(D|~S) */
156 { OP(PAT,DST,GXnand), OP(SRC,DST,GXand) }, /* 0x4c S&~(D&P) */
157 { OP(SRC,TMP,GXcopy), OP(SRC,DST,GXxor),
158 OP(PAT,SRC,GXxor), OP(SRC,DST,GXor),
159 OP(TMP,DST,GXequiv) }, /* 0x4d ~S^((S^P)|(S^D))*/
160 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXor),
161 OP(PAT,DST,GXxor) }, /* 0x4e P^(D|(S^P)) */
162 { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXnand) },/* 0x4f ~(P&(D|~S)) */
163 { OP(PAT,DST,GXandReverse) }, /* 0x50 P&~D */
164 { OP(PAT,SRC,GXandInverted), OP(SRC,DST,GXnor) },/* 0x51 ~(D|(S&~P)) */
165 { OP(DST,SRC,GXand), OP(PAT,SRC,GXor),
166 OP(SRC,DST,GXxor) }, /* 0x52 D^(P|(S&D)) */
167 { OP(SRC,DST,GXxor), OP(PAT,DST,GXand),
168 OP(SRC,DST,GXequiv) }, /* 0x53 ~S^(P&(D^S)) */
169 { OP(PAT,SRC,GXnor), OP(SRC,DST,GXnor) }, /* 0x54 ~(D|~(P|S)) */
170 { OP(PAT,DST,GXinvert) }, /* 0x55 ~D */
171 { OP(PAT,SRC,GXor), OP(SRC,DST,GXxor) }, /* 0x56 D^(P|S) */
172 { OP(PAT,SRC,GXor), OP(SRC,DST,GXnand) }, /* 0x57 ~(D&(P|S)) */
173 { OP(PAT,SRC,GXor), OP(SRC,DST,GXand),
174 OP(PAT,DST,GXxor) }, /* 0x58 P^(D&(P|S)) */
175 { OP(PAT,SRC,GXorReverse), OP(SRC,DST,GXxor) }, /* 0x59 D^(P|~S) */
176 { OP(PAT,DST,GXxor) }, /* 0x5a D^P */
177 { OP(DST,SRC,GXnor), OP(PAT,SRC,GXor),
178 OP(SRC,DST,GXxor) }, /* 0x5b D^(P|~(S|D)) */
179 { OP(DST,SRC,GXxor), OP(PAT,SRC,GXor),
180 OP(SRC,DST,GXxor) }, /* 0x5c D^(P|(S^D)) */
181 { OP(PAT,SRC,GXorReverse), OP(SRC,DST,GXnand) }, /* 0x5d ~(D&(P|~S)) */
182 { OP(DST,SRC,GXandInverted), OP(PAT,SRC,GXor),
183 OP(SRC,DST,GXxor) }, /* 0x5e D^(P|(S&~D)) */
184 { OP(PAT,DST,GXnand) }, /* 0x5f ~(D&P) */
185 { OP(SRC,DST,GXxor), OP(PAT,DST,GXand) }, /* 0x60 P&(D^S) */
186 { OP(DST,TMP,GXcopy), OP(SRC,DST,GXand),
187 OP(PAT,DST,GXor), OP(SRC,DST,GXxor),
188 OP(TMP,DST,GXequiv) }, /* 0x61 ~D^S^(P|(D&S)) */
189 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXor),
190 OP(SRC,DST,GXand), OP(TMP,DST,GXxor) }, /* 0x62 D^(S&(P|D)) */
191 { OP(PAT,DST,GXorInverted), OP(SRC,DST,GXxor) }, /* 0x63 S^(D|~P) */
192 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXor),
193 OP(SRC,DST,GXand), OP(TMP,DST,GXxor) }, /* 0x64 S^(D&(P|S)) */
194 { OP(PAT,SRC,GXorInverted), OP(SRC,DST,GXxor) }, /* 0x65 D^(S|~P) */
195 { OP(SRC,DST,GXxor) }, /* 0x66 S^D */
196 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXnor),
197 OP(SRC,DST,GXor), OP(TMP,DST,GXxor) }, /* 0x67 S^(D|~(S|P) */
198 { OP(DST,TMP,GXcopy), OP(SRC,DST,GXnor),
199 OP(PAT,DST,GXor), OP(SRC,DST,GXxor),
200 OP(TMP,DST,GXequiv) }, /* 0x68 ~D^S^(P|~(D|S))*/
201 { OP(SRC,DST,GXxor), OP(PAT,DST,GXequiv) }, /* 0x69 ~P^(D^S) */
202 { OP(PAT,SRC,GXand), OP(SRC,DST,GXxor) }, /* 0x6a D^(P&S) */
203 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXor),
204 OP(SRC,DST,GXand), OP(TMP,DST,GXxor),
205 OP(PAT,DST,GXequiv) }, /* 0x6b ~P^S^(D&(P|S)) */
206 { OP(PAT,DST,GXand), OP(SRC,DST,GXxor) }, /* 0x6c S^(D&P) */
207 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXor),
208 OP(SRC,DST,GXand), OP(TMP,DST,GXxor),
209 OP(PAT,DST,GXequiv) }, /* 0x6d ~P^D^(S&(P|D)) */
210 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXorReverse),
211 OP(SRC,DST,GXand), OP(TMP,DST,GXxor) }, /* 0x6e S^(D&(P|~S)) */
212 { OP(SRC,DST,GXequiv), OP(PAT,DST,GXnand) }, /* 0x6f ~(P&~(S^D)) */
213 { OP(SRC,DST,GXnand), OP(PAT,DST,GXand) }, /* 0x70 P&~(D&S) */
214 { OP(SRC,TMP,GXcopy), OP(DST,SRC,GXxor),
215 OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
216 OP(TMP,DST,GXequiv) }, /* 0x71 ~S^((S^D)&(P^D))*/
217 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
218 OP(SRC,DST,GXor), OP(TMP,DST,GXxor) }, /* 0x72 S^(D|(P^S)) */
219 { OP(PAT,DST,GXorInverted), OP(SRC,DST,GXnand) },/* 0x73 ~(S&(D|~P)) */
220 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXxor),
221 OP(SRC,DST,GXor), OP(TMP,DST,GXxor) }, /* 0x74 D^(S|(P^D)) */
222 { OP(PAT,SRC,GXorInverted), OP(SRC,DST,GXnand) },/* 0x75 ~(D&(S|~P)) */
223 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXandReverse),
224 OP(SRC,DST,GXor), OP(TMP,DST,GXxor) }, /* 0x76 S^(D|(P&~S)) */
225 { OP(SRC,DST,GXnand) }, /* 0x77 ~(S&D) */
226 { OP(SRC,DST,GXand), OP(PAT,DST,GXxor) }, /* 0x78 P^(D&S) */
227 { OP(DST,TMP,GXcopy), OP(SRC,DST,GXor),
228 OP(PAT,DST,GXand), OP(SRC,DST,GXxor),
229 OP(TMP,DST,GXequiv) }, /* 0x79 ~D^S^(P&(D|S)) */
230 { OP(DST,SRC,GXorInverted), OP(PAT,SRC,GXand),
231 OP(SRC,DST,GXxor) }, /* 0x7a D^(P&(S|~D)) */
232 { OP(PAT,DST,GXequiv), OP(SRC,DST,GXnand) }, /* 0x7b ~(S&~(D^P)) */
233 { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXand),
234 OP(SRC,DST,GXxor) }, /* 0x7c S^(P&(D|~S)) */
235 { OP(PAT,SRC,GXequiv), OP(SRC,DST,GXnand) }, /* 0x7d ~(D&~(P^S)) */
236 { OP(SRC,DST,GXxor), OP(PAT,SRC,GXxor),
237 OP(SRC,DST,GXor) }, /* 0x7e (S^P)|(S^D) */
238 { OP(PAT,SRC,GXand), OP(SRC,DST,GXnand) }, /* 0x7f ~(D&P&S) */
239 { OP(PAT,SRC,GXand), OP(SRC,DST,GXand) }, /* 0x80 D&P&S */
240 { OP(SRC,DST,GXxor), OP(PAT,SRC,GXxor),
241 OP(SRC,DST,GXnor) }, /* 0x81 ~((S^P)|(S^D)) */
242 { OP(PAT,SRC,GXequiv), OP(SRC,DST,GXand) }, /* 0x82 D&~(P^S) */
243 { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXand),
244 OP(SRC,DST,GXequiv) }, /* 0x83 ~S^(P&(D|~S)) */
245 { OP(PAT,DST,GXequiv), OP(SRC,DST,GXand) }, /* 0x84 S&~(D^P) */
246 { OP(PAT,SRC,GXorInverted), OP(SRC,DST,GXand),
247 OP(PAT,DST,GXequiv) }, /* 0x85 ~P^(D&(S|~P)) */
248 { OP(DST,TMP,GXcopy), OP(SRC,DST,GXor),
249 OP(PAT,DST,GXand), OP(SRC,DST,GXxor),
250 OP(TMP,DST,GXxor) }, /* 0x86 D^S^(P&(D|S)) */
251 { OP(SRC,DST,GXand), OP(PAT,DST,GXequiv) }, /* 0x87 ~P^(D&S) */
252 { OP(SRC,DST,GXand) }, /* 0x88 S&D */
253 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXandReverse),
254 OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) }, /* 0x89 ~S^(D|(P&~S)) */
255 { OP(PAT,SRC,GXorInverted), OP(SRC,DST,GXand) }, /* 0x8a D&(S|~P) */
256 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXxor),
257 OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) }, /* 0x8b ~D^(S|(P^D)) */
258 { OP(PAT,DST,GXorInverted), OP(SRC,DST,GXand) }, /* 0x8c S&(D|~P) */
259 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
260 OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) }, /* 0x8d ~S^(D|(P^S)) */
261 { OP(SRC,TMP,GXcopy), OP(DST,SRC,GXxor),
262 OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
263 OP(TMP,DST,GXxor) }, /* 0x8e S^((S^D)&(P^D))*/
264 { OP(SRC,DST,GXnand), OP(PAT,DST,GXnand) }, /* 0x8f ~(P&~(D&S)) */
265 { OP(SRC,DST,GXequiv), OP(PAT,DST,GXand) }, /* 0x90 P&~(D^S) */
266 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXorReverse),
267 OP(SRC,DST,GXand), OP(TMP,DST,GXequiv) }, /* 0x91 ~S^(D&(P|~S)) */
268 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXor),
269 OP(SRC,DST,GXand), OP(PAT,DST,GXxor),
270 OP(TMP,DST,GXxor) }, /* 0x92 D^P^(S&(D|P)) */
271 { OP(PAT,DST,GXand), OP(SRC,DST,GXequiv) }, /* 0x93 ~S^(P&D) */
272 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXor),
273 OP(SRC,DST,GXand), OP(PAT,DST,GXxor),
274 OP(TMP,DST,GXxor) }, /* 0x94 S^P^(D&(P|S)) */
275 { OP(PAT,SRC,GXand), OP(SRC,DST,GXequiv) }, /* 0x95 ~D^(P&S) */
276 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXxor) }, /* 0x96 D^P^S */
277 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXnor),
278 OP(SRC,DST,GXor), OP(PAT,DST,GXxor),
279 OP(TMP,DST,GXxor) }, /* 0x97 S^P^(D|~(P|S)) */
280 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXnor),
281 OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) }, /* 0x98 ~S^(D|~(P|S)) */
282 { OP(SRC,DST,GXequiv) }, /* 0x99 ~S^D */
283 { OP(PAT,SRC,GXandReverse), OP(SRC,DST,GXxor) }, /* 0x9a D^(P&~S) */
284 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXor),
285 OP(SRC,DST,GXand), OP(TMP,DST,GXequiv) }, /* 0x9b ~S^(D&(P|S)) */
286 { OP(PAT,DST,GXandReverse), OP(SRC,DST,GXxor) }, /* 0x9c S^(P&~D) */
287 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXor),
288 OP(SRC,DST,GXand), OP(TMP,DST,GXequiv) }, /* 0x9d ~D^(S&(P|D)) */
289 { OP(DST,TMP,GXcopy), OP(SRC,DST,GXand),
290 OP(PAT,DST,GXor), OP(SRC,DST,GXxor),
291 OP(TMP,DST,GXxor) }, /* 0x9e D^S^(P|(D&S)) */
292 { OP(SRC,DST,GXxor), OP(PAT,DST,GXnand) }, /* 0x9f ~(P&(D^S)) */
293 { OP(PAT,DST,GXand) }, /* 0xa0 D&P */
294 { OP(PAT,SRC,GXandInverted), OP(SRC,DST,GXor),
295 OP(PAT,DST,GXequiv) }, /* 0xa1 ~P^(D|(S&~P)) */
296 { OP(PAT,SRC,GXorReverse), OP(SRC,DST,GXand) }, /* 0xa2 D&(P|~S) */
297 { OP(DST,SRC,GXxor), OP(PAT,SRC,GXor),
298 OP(SRC,DST,GXequiv) }, /* 0xa3 ~D^(P|(S^D)) */
299 { OP(PAT,SRC,GXnor), OP(SRC,DST,GXor),
300 OP(PAT,DST,GXequiv) }, /* 0xa4 ~P^(D|~(S|P)) */
301 { OP(PAT,DST,GXequiv) }, /* 0xa5 ~P^D */
302 { OP(PAT,SRC,GXandInverted), OP(SRC,DST,GXxor) },/* 0xa6 D^(S&~P) */
303 { OP(PAT,SRC,GXor), OP(SRC,DST,GXand),
304 OP(PAT,DST,GXequiv) }, /* 0xa7 ~P^(D&(S|P)) */
305 { OP(PAT,SRC,GXor), OP(SRC,DST,GXand) }, /* 0xa8 D&(P|S) */
306 { OP(PAT,SRC,GXor), OP(SRC,DST,GXequiv) }, /* 0xa9 ~D^(P|S) */
307 { OP(SRC,DST,GXnoop) }, /* 0xaa D */
308 { OP(PAT,SRC,GXnor), OP(SRC,DST,GXor) }, /* 0xab D|~(P|S) */
309 { OP(SRC,DST,GXxor), OP(PAT,DST,GXand),
310 OP(SRC,DST,GXxor) }, /* 0xac S^(P&(D^S)) */
311 { OP(DST,SRC,GXand), OP(PAT,SRC,GXor),
312 OP(SRC,DST,GXequiv) }, /* 0xad ~D^(P|(S&D)) */
313 { OP(PAT,SRC,GXandInverted), OP(SRC,DST,GXor) }, /* 0xae D|(S&~P) */
314 { OP(PAT,DST,GXorInverted) }, /* 0xaf D|~P */
315 { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXand) }, /* 0xb0 P&(D|~S) */
316 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXor),
317 OP(PAT,DST,GXequiv) }, /* 0xb1 ~P^(D|(S^P)) */
318 { OP(SRC,TMP,GXcopy), OP(SRC,DST,GXxor),
319 OP(PAT,SRC,GXxor), OP(SRC,DST,GXor),
320 OP(TMP,DST,GXxor) }, /* 0xb2 S^((S^P)|(S^D))*/
321 { OP(PAT,DST,GXnand), OP(SRC,DST,GXnand) }, /* 0xb3 ~(S&~(D&P)) */
322 { OP(SRC,DST,GXandReverse), OP(PAT,DST,GXxor) }, /* 0xb4 P^(S&~D) */
323 { OP(DST,SRC,GXor), OP(PAT,SRC,GXand),
324 OP(SRC,DST,GXequiv) }, /* 0xb5 ~D^(P&(S|D)) */
325 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXand),
326 OP(SRC,DST,GXor), OP(PAT,DST,GXxor),
327 OP(TMP,DST,GXxor) }, /* 0xb6 D^P^(S|(D&P)) */
328 { OP(PAT,DST,GXxor), OP(SRC,DST,GXnand) }, /* 0xb7 ~(S&(D^P)) */
329 { OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
330 OP(PAT,DST,GXxor) }, /* 0xb8 P^(S&(D^P)) */
331 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXand),
332 OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) }, /* 0xb9 ~D^(S|(P&D)) */
333 { OP(PAT,SRC,GXandReverse), OP(SRC,DST,GXor) }, /* 0xba D|(P&~S) */
334 { OP(SRC,DST,GXorInverted) }, /* 0xbb ~S|D */
335 { OP(SRC,DST,GXnand), OP(PAT,DST,GXand),
336 OP(SRC,DST,GXxor) }, /* 0xbc S^(P&~(D&S)) */
337 { OP(DST,SRC,GXxor), OP(PAT,DST,GXxor),
338 OP(SRC,DST,GXnand) }, /* 0xbd ~((S^D)&(P^D)) */
339 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXor) }, /* 0xbe D|(P^S) */
340 { OP(PAT,SRC,GXnand), OP(SRC,DST,GXor) }, /* 0xbf D|~(P&S) */
341 { OP(PAT,SRC,GXand) }, /* 0xc0 P&S */
342 { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXor),
343 OP(SRC,DST,GXequiv) }, /* 0xc1 ~S^(P|(D&~S)) */
344 { OP(SRC,DST,GXnor), OP(PAT,DST,GXor),
345 OP(SRC,DST,GXequiv) }, /* 0xc2 ~S^(P|~(D|S)) */
346 { OP(PAT,SRC,GXequiv) }, /* 0xc3 ~P^S */
347 { OP(PAT,DST,GXorReverse), OP(SRC,DST,GXand) }, /* 0xc4 S&(P|~D) */
348 { OP(SRC,DST,GXxor), OP(PAT,DST,GXor),
349 OP(SRC,DST,GXequiv) }, /* 0xc5 ~S^(P|(D^S)) */
350 { OP(PAT,DST,GXandInverted), OP(SRC,DST,GXxor) },/* 0xc6 S^(D&~P) */
351 { OP(PAT,DST,GXor), OP(SRC,DST,GXand),
352 OP(PAT,DST,GXequiv) }, /* 0xc7 ~P^(S&(D|P)) */
353 { OP(PAT,DST,GXor), OP(SRC,DST,GXand) }, /* 0xc8 S&(D|P) */
354 { OP(PAT,DST,GXor), OP(SRC,DST,GXequiv) }, /* 0xc9 ~S^(P|D) */
355 { OP(DST,SRC,GXxor), OP(PAT,SRC,GXand),
356 OP(SRC,DST,GXxor) }, /* 0xca D^(P&(S^D)) */
357 { OP(SRC,DST,GXand), OP(PAT,DST,GXor),
358 OP(SRC,DST,GXequiv) }, /* 0xcb ~S^(P|(D&S)) */
359 { OP(SRC,DST,GXcopy) }, /* 0xcc S */
360 { OP(PAT,DST,GXnor), OP(SRC,DST,GXor) }, /* 0xcd S|~(D|P) */
361 { OP(PAT,DST,GXandInverted), OP(SRC,DST,GXor) }, /* 0xce S|(D&~P) */
362 { OP(PAT,SRC,GXorInverted) }, /* 0xcf S|~P */
363 { OP(SRC,DST,GXorReverse), OP(PAT,DST,GXand) }, /* 0xd0 P&(S|~D) */
364 { OP(PAT,DST,GXxor), OP(SRC,DST,GXor),
365 OP(PAT,DST,GXequiv) }, /* 0xd1 ~P^(S|(D^P)) */
366 { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXxor) },/* 0xd2 P^(D&~S) */
367 { OP(SRC,DST,GXor), OP(PAT,DST,GXand),
368 OP(SRC,DST,GXequiv) }, /* 0xd3 ~S^(P&(D|S)) */
369 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
370 OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
371 OP(TMP,DST,GXxor) }, /* 0xd4 S^((S^P)&(D^P))*/
372 { OP(PAT,SRC,GXnand), OP(SRC,DST,GXnand) }, /* 0xd5 ~(D&~(P&S)) */
373 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXand),
374 OP(SRC,DST,GXor), OP(PAT,DST,GXxor),
375 OP(TMP,DST,GXxor) }, /* 0xd6 S^P^(D|(P&S)) */
376 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXnand) }, /* 0xd7 ~(D&(P^S)) */
377 { OP(PAT,SRC,GXxor), OP(SRC,DST,GXand),
378 OP(PAT,DST,GXxor) }, /* 0xd8 P^(D&(S^P)) */
379 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXand),
380 OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) }, /* 0xd9 ~S^(D|(P&S)) */
381 { OP(DST,SRC,GXnand), OP(PAT,SRC,GXand),
382 OP(SRC,DST,GXxor) }, /* 0xda D^(P&~(S&D)) */
383 { OP(SRC,DST,GXxor), OP(PAT,SRC,GXxor),
384 OP(SRC,DST,GXnand) }, /* 0xdb ~((S^P)&(S^D)) */
385 { OP(PAT,DST,GXandReverse), OP(SRC,DST,GXor) }, /* 0xdc S|(P&~D) */
386 { OP(SRC,DST,GXorReverse) }, /* 0xdd S|~D */
387 { OP(PAT,DST,GXxor), OP(SRC,DST,GXor) }, /* 0xde S|(D^P) */
388 { OP(PAT,DST,GXnand), OP(SRC,DST,GXor) }, /* 0xdf S|~(D&P) */
389 { OP(SRC,DST,GXor), OP(PAT,DST,GXand) }, /* 0xe0 P&(D|S) */
390 { OP(SRC,DST,GXor), OP(PAT,DST,GXequiv) }, /* 0xe1 ~P^(D|S) */
391 { OP(DST,TMP,GXcopy), OP(PAT,DST,GXxor),
392 OP(SRC,DST,GXand), OP(TMP,DST,GXxor) }, /* 0xe2 D^(S&(P^D)) */
393 { OP(PAT,DST,GXand), OP(SRC,DST,GXor),
394 OP(PAT,DST,GXequiv) }, /* 0xe3 ~P^(S|(D&P)) */
395 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
396 OP(SRC,DST,GXand), OP(TMP,DST,GXxor) }, /* 0xe4 S^(D&(P^S)) */
397 { OP(PAT,SRC,GXand), OP(SRC,DST,GXor),
398 OP(PAT,DST,GXequiv) }, /* 0xe5 ~P^(D|(S&P)) */
399 { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXnand),
400 OP(SRC,DST,GXand), OP(TMP,DST,GXxor) }, /* 0xe6 S^(D&~(P&S)) */
401 { OP(PAT,SRC,GXxor), OP(PAT,DST,GXxor),
402 OP(SRC,DST,GXnand) }, /* 0xe7 ~((S^P)&(D^P)) */
403 { OP(SRC,TMP,GXcopy), OP(SRC,DST,GXxor),
404 OP(PAT,SRC,GXxor), OP(SRC,DST,GXand),
405 OP(TMP,DST,GXxor) }, /* 0xe8 S^((S^P)&(S^D))*/
406 { OP(DST,TMP,GXcopy), OP(SRC,DST,GXnand),
407 OP(PAT,DST,GXand), OP(SRC,DST,GXxor),
408 OP(TMP,DST,GXequiv) }, /* 0xe9 ~D^S^(P&~(S&D))*/
409 { OP(PAT,SRC,GXand), OP(SRC,DST,GXor) }, /* 0xea D|(P&S) */
410 { OP(PAT,SRC,GXequiv), OP(SRC,DST,GXor) }, /* 0xeb D|~(P^S) */
411 { OP(PAT,DST,GXand), OP(SRC,DST,GXor) }, /* 0xec S|(D&P) */
412 { OP(PAT,DST,GXequiv), OP(SRC,DST,GXor) }, /* 0xed S|~(D^P) */
413 { OP(SRC,DST,GXor) }, /* 0xee S|D */
414 { OP(PAT,DST,GXorInverted), OP(SRC,DST,GXor) }, /* 0xef S|D|~P */
415 { OP(PAT,DST,GXcopy) }, /* 0xf0 P */
416 { OP(SRC,DST,GXnor), OP(PAT,DST,GXor) }, /* 0xf1 P|~(D|S) */
417 { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXor) }, /* 0xf2 P|(D&~S) */
418 { OP(PAT,SRC,GXorReverse) }, /* 0xf3 P|~S */
419 { OP(SRC,DST,GXandReverse), OP(PAT,DST,GXor) }, /* 0xf4 P|(S&~D) */
420 { OP(PAT,DST,GXorReverse) }, /* 0xf5 P|~D */
421 { OP(SRC,DST,GXxor), OP(PAT,DST,GXor) }, /* 0xf6 P|(D^S) */
422 { OP(SRC,DST,GXnand), OP(PAT,DST,GXor) }, /* 0xf7 P|~(S&D) */
423 { OP(SRC,DST,GXand), OP(PAT,DST,GXor) }, /* 0xf8 P|(D&S) */
424 { OP(SRC,DST,GXequiv), OP(PAT,DST,GXor) }, /* 0xf9 P|~(D^S) */
425 { OP(PAT,DST,GXor) }, /* 0xfa D|P */
426 { OP(PAT,SRC,GXorReverse), OP(SRC,DST,GXor) }, /* 0xfb D|P|~S */
427 { OP(PAT,SRC,GXor) }, /* 0xfc P|S */
428 { OP(SRC,DST,GXorReverse), OP(PAT,DST,GXor) }, /* 0xfd P|S|~D */
429 { OP(SRC,DST,GXor), OP(PAT,DST,GXor) }, /* 0xfe P|D|S */
430 { OP(PAT,DST,GXset) } /* 0xff 1 */
431 };
432
433
434 #ifdef BITBLT_TEST /* Opcodes test */
435
436 static int do_bitop( int s, int d, int rop )
437 {
438 int res;
439 switch(rop)
440 {
441 case GXclear: res = 0; break;
442 case GXand: res = s & d; break;
443 case GXandReverse: res = s & ~d; break;
444 case GXcopy: res = s; break;
445 case GXandInverted: res = ~s & d; break;
446 case GXnoop: res = d; break;
447 case GXxor: res = s ^ d; break;
448 case GXor: res = s | d; break;
449 case GXnor: res = ~(s | d); break;
450 case GXequiv: res = ~s ^ d; break;
451 case GXinvert: res = ~d; break;
452 case GXorReverse: res = s | ~d; break;
453 case GXcopyInverted: res = ~s; break;
454 case GXorInverted: res = ~s | d; break;
455 case GXnand: res = ~(s & d); break;
456 case GXset: res = 1; break;
457 }
458 return res & 1;
459 }
460
461 main()
462 {
463 int rop, i, res, src, dst, pat, tmp, dstUsed;
464 const BYTE *opcode;
465
466 for (rop = 0; rop < 256; rop++)
467 {
468 res = dstUsed = 0;
469 for (i = 0; i < 8; i++)
470 {
471 pat = (i >> 2) & 1;
472 src = (i >> 1) & 1;
473 dst = i & 1;
474 for (opcode = BITBLT_Opcodes[rop]; *opcode; opcode++)
475 {
476 switch(*opcode >> 4)
477 {
478 case OP_ARGS(DST,TMP):
479 tmp = do_bitop( dst, tmp, *opcode & 0xf );
480 break;
481 case OP_ARGS(DST,SRC):
482 src = do_bitop( dst, src, *opcode & 0xf );
483 break;
484 case OP_ARGS(SRC,TMP):
485 tmp = do_bitop( src, tmp, *opcode & 0xf );
486 break;
487 case OP_ARGS(SRC,DST):
488 dst = do_bitop( src, dst, *opcode & 0xf );
489 dstUsed = 1;
490 break;
491 case OP_ARGS(PAT,TMP):
492 tmp = do_bitop( pat, tmp, *opcode & 0xf );
493 break;
494 case OP_ARGS(PAT,DST):
495 dst = do_bitop( pat, dst, *opcode & 0xf );
496 dstUsed = 1;
497 break;
498 case OP_ARGS(PAT,SRC):
499 src = do_bitop( pat, src, *opcode & 0xf );
500 break;
501 case OP_ARGS(TMP,DST):
502 dst = do_bitop( tmp, dst, *opcode & 0xf );
503 dstUsed = 1;
504 break;
505 case OP_ARGS(TMP,SRC):
506 src = do_bitop( tmp, src, *opcode & 0xf );
507 break;
508 default:
509 printf( "Invalid opcode %x\n", *opcode );
510 }
511 }
512 if (!dstUsed) dst = src;
513 if (dst) res |= 1 << i;
514 }
515 if (res != rop) printf( "%02x: ERROR, res=%02x\n", rop, res );
516 }
517 }
518
519 #endif /* BITBLT_TEST */
520
521
522 /***********************************************************************
523 * BITBLT_StretchRow
524 *
525 * Stretch a row of pixels. Helper function for BITBLT_StretchImage.
526 */
527 static void BITBLT_StretchRow( int *rowSrc, int *rowDst,
528 INT32 startDst, INT32 widthDst,
529 INT32 xinc, INT32 xoff, WORD mode )
530 {
531 register INT32 xsrc = xinc * startDst + xoff;
532 rowDst += startDst;
533 switch(mode)
534 {
535 case STRETCH_ANDSCANS:
536 for(; widthDst > 0; widthDst--, xsrc += xinc)
537 *rowDst++ &= rowSrc[xsrc >> 16];
538 break;
539 case STRETCH_ORSCANS:
540 for(; widthDst > 0; widthDst--, xsrc += xinc)
541 *rowDst++ |= rowSrc[xsrc >> 16];
542 break;
543 case STRETCH_DELETESCANS:
544 for(; widthDst > 0; widthDst--, xsrc += xinc)
545 *rowDst++ = rowSrc[xsrc >> 16];
546 break;
547 }
548 }
549
550
551 /***********************************************************************
552 * BITBLT_ShrinkRow
553 *
554 * Shrink a row of pixels. Helper function for BITBLT_StretchImage.
555 */
556 static void BITBLT_ShrinkRow( int *rowSrc, int *rowDst,
557 INT32 startSrc, INT32 widthSrc,
558 INT32 xinc, INT32 xoff, WORD mode )
559 {
560 register INT32 xdst = xinc * startSrc + xoff;
561 rowSrc += startSrc;
562 switch(mode)
563 {
564 case STRETCH_ORSCANS:
565 for(; widthSrc > 0; widthSrc--, xdst += xinc)
566 rowDst[xdst >> 16] |= *rowSrc++;
567 break;
568 case STRETCH_ANDSCANS:
569 for(; widthSrc > 0; widthSrc--, xdst += xinc)
570 rowDst[xdst >> 16] &= *rowSrc++;
571 break;
572 case STRETCH_DELETESCANS:
573 for(; widthSrc > 0; widthSrc--, xdst += xinc)
574 rowDst[xdst >> 16] = *rowSrc++;
575 break;
576 }
577 }
578
579
580 /***********************************************************************
581 * BITBLT_GetRow
582 *
583 * Retrieve a row from an image. Helper function for BITBLT_StretchImage.
584 */
585 static void BITBLT_GetRow( XImage *image, int *pdata, INT32 row,
586 INT32 start, INT32 width, INT32 depthDst,
587 int fg, int bg, BOOL32 swap)
588 {
589 register INT32 i;
590
591 assert( (row >= 0) && (row < image->height) );
592 assert( (start >= 0) && (width <= image->width) );
593
594 pdata += swap ? start+width-1 : start;
595 if (image->depth == depthDst) /* color -> color */
596 {
597 if (COLOR_PixelToPalette && (depthDst != 1))
598 if (swap) for (i = 0; i < width; i++)
599 *pdata-- = COLOR_PixelToPalette[XGetPixel( image, i, row )];
600 else for (i = 0; i < width; i++)
601 *pdata++ = COLOR_PixelToPalette[XGetPixel( image, i, row )];
602 else
603 if (swap) for (i = 0; i < width; i++)
604 *pdata-- = XGetPixel( image, i, row );
605 else for (i = 0; i < width; i++)
606 *pdata++ = XGetPixel( image, i, row );
607 }
608 else
609 {
610 if (image->depth == 1) /* monochrome -> color */
611 {
612 if (COLOR_PixelToPalette)
613 {
614 fg = COLOR_PixelToPalette[fg];
615 bg = COLOR_PixelToPalette[bg];
616 }
617 if (swap) for (i = 0; i < width; i++)
618 *pdata-- = XGetPixel( image, i, row ) ? bg : fg;
619 else for (i = 0; i < width; i++)
620 *pdata++ = XGetPixel( image, i, row ) ? bg : fg;
621 }
622 else /* color -> monochrome */
623 {
624 if (swap) for (i = 0; i < width; i++)
625 *pdata-- = (XGetPixel( image, i, row ) == bg) ? 1 : 0;
626 else for (i = 0; i < width; i++)
627 *pdata++ = (XGetPixel( image, i, row ) == bg) ? 1 : 0;
628 }
629 }
630 }
631
632
633 /***********************************************************************
634 * BITBLT_StretchImage
635 *
636 * Stretch an X image.
637 * FIXME: does not work for full 32-bit coordinates.
638 */
639 static void BITBLT_StretchImage( XImage *srcImage, XImage *dstImage,
640 INT32 widthSrc, INT32 heightSrc,
641 INT32 widthDst, INT32 heightDst,
642 RECT32 *visRectSrc, RECT32 *visRectDst,
643 int foreground, int background, WORD mode )
644 {
645 int *rowSrc, *rowDst, *pixel;
646 char *pdata;
647 INT32 xinc, xoff, yinc, ysrc, ydst;
648 register INT32 x, y;
649 BOOL32 hstretch, vstretch, hswap, vswap;
650
651 hswap = ((int)widthSrc * widthDst) < 0;
652 vswap = ((int)heightSrc * heightDst) < 0;
653 widthSrc = abs(widthSrc);
654 heightSrc = abs(heightSrc);
655 widthDst = abs(widthDst);
656 heightDst = abs(heightDst);
657
658 if (!(rowSrc = (int *)malloc( (widthSrc+widthDst)*sizeof(int) ))) return;
659 rowDst = rowSrc + widthSrc;
660
661 /* When stretching, all modes are the same, and DELETESCANS is faster */
662 if ((widthSrc < widthDst) && (heightSrc < heightDst))
663 mode = STRETCH_DELETESCANS;
664
665 if (mode != STRETCH_DELETESCANS)
666 memset( rowDst, (mode == STRETCH_ANDSCANS) ? 0xff : 0x00,
667 widthDst*sizeof(int) );
668
669 hstretch = (widthSrc < widthDst);
670 vstretch = (heightSrc < heightDst);
671
672 if (hstretch)
673 {
674 xinc = ((int)widthSrc << 16) / widthDst;
675 xoff = ((widthSrc << 16) - (xinc * widthDst)) / 2;
676 }
677 else
678 {
679 xinc = ((int)widthDst << 16) / widthSrc;
680 xoff = ((widthDst << 16) - (xinc * widthSrc)) / 2;
681 }
682
683 if (vstretch)
684 {
685 yinc = ((int)heightSrc << 16) / heightDst;
686 ydst = visRectDst->top;
687 if (vswap)
688 {
689 ysrc = yinc * (heightDst - ydst - 1);
690 yinc = -yinc;
691 }
692 else
693 ysrc = yinc * ydst;
694
695 for ( ; (ydst < visRectDst->bottom); ysrc += yinc, ydst++)
696 {
697 if (((ysrc >> 16) < visRectSrc->top) ||
698 ((ysrc >> 16) >= visRectSrc->bottom)) continue;
699
700 /* Retrieve a source row */
701 BITBLT_GetRow( srcImage, rowSrc, (ysrc >> 16) - visRectSrc->top,
702 hswap ? widthSrc - visRectSrc->right
703 : visRectSrc->left,
704 visRectSrc->right - visRectSrc->left,
705 dstImage->depth, foreground, background, hswap );
706
707 /* Stretch or shrink it */
708 if (hstretch)
709 BITBLT_StretchRow( rowSrc, rowDst, visRectDst->left,
710 visRectDst->right - visRectDst->left,
711 xinc, xoff, mode );
712 else BITBLT_ShrinkRow( rowSrc, rowDst,
713 hswap ? widthSrc - visRectSrc->right
714 : visRectSrc->left,
715 visRectSrc->right - visRectSrc->left,
716 xinc, xoff, mode );
717
718 /* Store the destination row */
719 pixel = rowDst + visRectDst->right - 1;
720 y = ydst - visRectDst->top;
721 for (x = visRectDst->right-visRectDst->left-1; x >= 0; x--)
722 XPutPixel( dstImage, x, y, *pixel-- );
723 if (mode != STRETCH_DELETESCANS)
724 memset( rowDst, (mode == STRETCH_ANDSCANS) ? 0xff : 0x00,
725 widthDst*sizeof(int) );
726
727 /* Make copies of the destination row */
728
729 pdata = dstImage->data + dstImage->bytes_per_line * y;
730 while (((ysrc + yinc) >> 16 == ysrc >> 16) &&
731 (ydst < visRectDst->bottom-1))
732 {
733 memcpy( pdata + dstImage->bytes_per_line, pdata,
734 dstImage->bytes_per_line );
735 pdata += dstImage->bytes_per_line;
736 ysrc += yinc;
737 ydst++;
738 }
739 }
740 }
741 else /* Shrinking */
742 {
743 yinc = ((int)heightDst << 16) / heightSrc;
744 ysrc = visRectSrc->top;
745 ydst = ((heightDst << 16) - (yinc * heightSrc)) / 2;
746 if (vswap)
747 {
748 ydst += yinc * (heightSrc - ysrc - 1);
749 yinc = -yinc;
750 }
751 else
752 ydst += yinc * ysrc;
753
754 for( ; (ysrc < visRectSrc->bottom); ydst += yinc, ysrc++)
755 {
756 if (((ydst >> 16) < visRectDst->top) ||
757 ((ydst >> 16) >= visRectDst->bottom)) continue;
758
759 /* Retrieve a source row */
760 BITBLT_GetRow( srcImage, rowSrc, ysrc - visRectSrc->top,
761 hswap ? widthSrc - visRectSrc->right
762 : visRectSrc->left,
763 visRectSrc->right - visRectSrc->left,
764 dstImage->depth, foreground, background, hswap );
765
766 /* Stretch or shrink it */
767 if (hstretch)
768 BITBLT_StretchRow( rowSrc, rowDst, visRectDst->left,
769 visRectDst->right - visRectDst->left,
770 xinc, xoff, mode );
771 else BITBLT_ShrinkRow( rowSrc, rowDst,
772 hswap ? widthSrc - visRectSrc->right
773 : visRectSrc->left,
774 visRectSrc->right - visRectSrc->left,
775 xinc, xoff, mode );
776
777 /* Merge several source rows into the destination */
778 if (mode == STRETCH_DELETESCANS)
779 {
780 /* Simply skip the overlapping rows */
781 while (((ydst + yinc) >> 16 == ydst >> 16) &&
782 (ysrc < visRectSrc->bottom-1))
783 {
784 ydst += yinc;
785 ysrc++;
786 }
787 }
788 else if (((ydst + yinc) >> 16 == ydst >> 16) &&
789 (ysrc < visRectSrc->bottom-1))
790 continue; /* Restart loop for next overlapping row */
791
792 /* Store the destination row */
793 pixel = rowDst + visRectDst->right - 1;
794 y = (ydst >> 16) - visRectDst->top;
795 for (x = visRectDst->right-visRectDst->left-1; x >= 0; x--)
796 XPutPixel( dstImage, x, y, *pixel-- );
797 if (mode != STRETCH_DELETESCANS)
798 memset( rowDst, (mode == STRETCH_ANDSCANS) ? 0xff : 0x00,
799 widthDst*sizeof(int) );
800 }
801 }
802 free( rowSrc );
803 }
804
805
806 /***********************************************************************
807 * BITBLT_GetSrcAreaStretch
808 *
809 * Retrieve an area from the source DC, stretching and mapping all the
810 * pixels to Windows colors.
811 */
812 static void BITBLT_GetSrcAreaStretch( DC *dcSrc, DC *dcDst,
813 Pixmap pixmap, GC gc,
814 INT32 xSrc, INT32 ySrc,
815 INT32 widthSrc, INT32 heightSrc,
816 INT32 xDst, INT32 yDst,
817 INT32 widthDst, INT32 heightDst,
818 RECT32 *visRectSrc, RECT32 *visRectDst )
819 {
820 XImage *imageSrc, *imageDst;
821
822 RECT32 rectSrc = *visRectSrc;
823 RECT32 rectDst = *visRectDst;
824
825 if (widthSrc < 0) xSrc += widthSrc;
826 if (widthDst < 0) xDst += widthDst;
827 if (heightSrc < 0) ySrc += heightSrc;
828 if (heightDst < 0) yDst += heightDst;
829 OffsetRect32( &rectSrc, -xSrc, -ySrc );
830 OffsetRect32( &rectDst, -xDst, -yDst );
831
832 /* FIXME: avoid BadMatch errors */
833 imageSrc = XGetImage( display, dcSrc->u.x.drawable,
834 visRectSrc->left, visRectSrc->top,
835 visRectSrc->right - visRectSrc->left,
836 visRectSrc->bottom - visRectSrc->top,
837 AllPlanes, ZPixmap );
838 XCREATEIMAGE( imageDst, rectDst.right - rectDst.left,
839 rectDst.bottom - rectDst.top, dcDst->w.bitsPerPixel );
840 BITBLT_StretchImage( imageSrc, imageDst, widthSrc, heightSrc,
841 widthDst, heightDst, &rectSrc, &rectDst,
842 dcDst->w.textPixel, dcDst->w.bitsPerPixel != 1 ?
843 dcDst->w.backgroundPixel : dcSrc->w.backgroundPixel,
844 dcDst->w.stretchBltMode );
845 XPutImage( display, pixmap, gc, imageDst, 0, 0, 0, 0,
846 rectDst.right - rectDst.left, rectDst.bottom - rectDst.top );
847 XDestroyImage( imageSrc );
848 XDestroyImage( imageDst );
849 }
850
851
852 /***********************************************************************
853 * BITBLT_GetSrcArea
854 *
855 * Retrieve an area from the source DC, mapping all the
856 * pixels to Windows colors.
857 */
858 static void BITBLT_GetSrcArea( DC *dcSrc, DC *dcDst, Pixmap pixmap, GC gc,
859 INT32 xSrc, INT32 ySrc, RECT32 *visRectSrc )
860 {
861 XImage *imageSrc, *imageDst;
862 register INT32 x, y;
863 INT32 width = visRectSrc->right - visRectSrc->left;
864 INT32 height = visRectSrc->bottom - visRectSrc->top;
865
866 if (dcSrc->w.bitsPerPixel == dcDst->w.bitsPerPixel)
867 {
868 if (!COLOR_PixelToPalette ||
869 (dcDst->w.bitsPerPixel == 1)) /* monochrome -> monochrome */
870 {
871 XCopyArea( display, dcSrc->u.x.drawable, pixmap, gc,
872 visRectSrc->left, visRectSrc->top, width, height, 0, 0);
873 }
874 else /* color -> color */
875 {
876 if (dcSrc->w.flags & DC_MEMORY)
877 imageSrc = XGetImage( display, dcSrc->u.x.drawable,
878 visRectSrc->left, visRectSrc->top,
879 width, height, AllPlanes, ZPixmap );
880 else
881 {
882 /* Make sure we don't get a BadMatch error */
883 XCopyArea( display, dcSrc->u.x.drawable, pixmap, gc,
884 visRectSrc->left, visRectSrc->top,
885 width, height, 0, 0);
886 imageSrc = XGetImage( display, pixmap, 0, 0, width, height,
887 AllPlanes, ZPixmap );
888 }
889 for (y = 0; y < height; y++)
890 for (x = 0; x < width; x++)
891 XPutPixel(imageSrc, x, y,
892 COLOR_PixelToPalette[XGetPixel(imageSrc, x, y)]);
893 XPutImage( display, pixmap, gc, imageSrc,
894 0, 0, 0, 0, width, height );
895 XDestroyImage( imageSrc );
896 }
897 }
898 else
899 {
900 if (dcSrc->w.bitsPerPixel == 1) /* monochrome -> color */
901 {
902 if (COLOR_PixelToPalette)
903 {
904 XSetBackground( display, gc,
905 COLOR_PixelToPalette[dcDst->w.textPixel] );
906 XSetForeground( display, gc,
907 COLOR_PixelToPalette[dcDst->w.backgroundPixel]);
908 }
909 else
910 {
911 XSetBackground( display, gc, dcDst->w.textPixel );
912 XSetForeground( display, gc, dcDst->w.backgroundPixel );
913 }
914 XCopyPlane( display, dcSrc->u.x.drawable, pixmap, gc,
915 visRectSrc->left, visRectSrc->top,
916 width, height, 0, 0, 1 );
917 }
918 else /* color -> monochrome */
919 {
920 /* FIXME: avoid BadMatch error */
921 imageSrc = XGetImage( display, dcSrc->u.x.drawable,
922 visRectSrc->left, visRectSrc->top,
923 width, height, AllPlanes, ZPixmap );
924 XCREATEIMAGE( imageDst, width, height, dcDst->w.bitsPerPixel );
925 for (y = 0; y < height; y++)
926 for (x = 0; x < width; x++)
927 XPutPixel(imageDst, x, y, (XGetPixel(imageSrc,x,y) ==
928 dcSrc->w.backgroundPixel) );
929 XPutImage( display, pixmap, gc, imageDst,
930 0, 0, 0, 0, width, height );
931 XDestroyImage( imageSrc );
932 XDestroyImage( imageDst );
933 }
934 }
935 }
936
937
938 /***********************************************************************
939 * BITBLT_GetDstArea
940 *
941 * Retrieve an area from the destination DC, mapping all the
942 * pixels to Windows colors.
943 */
944 static void BITBLT_GetDstArea(DC *dc, Pixmap pixmap, GC gc, RECT32 *visRectDst)
945 {
946 INT32 width = visRectDst->right - visRectDst->left;
947 INT32 height = visRectDst->bottom - visRectDst->top;
948
949 if (!COLOR_PixelToPalette || (dc->w.bitsPerPixel == 1) ||
950 (COLOR_GetSystemPaletteFlags() & COLOR_VIRTUAL) )
951 {
952 XCopyArea( display, dc->u.x.drawable, pixmap, gc,
953 visRectDst->left, visRectDst->top, width, height, 0, 0 );
954 }
955 else
956 {
957 register INT32 x, y;
958 XImage *image;
959
960 if (dc->w.flags & DC_MEMORY)
961 image = XGetImage( display, dc->u.x.drawable,
962 visRectDst->left, visRectDst->top,
963 width, height, AllPlanes, ZPixmap );
964 else
965 {
966 /* Make sure we don't get a BadMatch error */
967 XCopyArea( display, dc->u.x.drawable, pixmap, gc,
968 visRectDst->left, visRectDst->top, width, height, 0, 0);
969 image = XGetImage( display, pixmap, 0, 0, width, height,
970 AllPlanes, ZPixmap );
971 }
972 for (y = 0; y < height; y++)
973 for (x = 0; x < width; x++)
974 XPutPixel( image, x, y,
975 COLOR_PixelToPalette[XGetPixel( image, x, y )]);
976 XPutImage( display, pixmap, gc, image, 0, 0, 0, 0, width, height );
977 }
978 }
979
980
981 /***********************************************************************
982 * BITBLT_PutDstArea
983 *
984 * Put an area back into the destination DC, mapping the pixel
985 * colors to X pixels.
986 */
987 static void BITBLT_PutDstArea(DC *dc, Pixmap pixmap, GC gc, RECT32 *visRectDst)
988 {
989 INT32 width = visRectDst->right - visRectDst->left;
990 INT32 height = visRectDst->bottom - visRectDst->top;
991
992 /* !COLOR_PaletteToPixel is _NOT_ enough */
993
994 if (!COLOR_PaletteToPixel || (dc->w.bitsPerPixel == 1) ||
995 (COLOR_GetSystemPaletteFlags() & COLOR_VIRTUAL) )
996 {
997 XCopyArea( display, pixmap, dc->u.x.drawable, gc, 0, 0,
998 width, height, visRectDst->left, visRectDst->top );
999 }
1000 else
1001 {
1002 register INT32 x, y;
1003 XImage *image = XGetImage( display, pixmap, 0, 0, width, height,
1004 AllPlanes, ZPixmap );
1005 for (y = 0; y < height; y++)
1006 for (x = 0; x < width; x++)
1007 {
1008 XPutPixel( image, x, y,
1009 COLOR_PaletteToPixel[XGetPixel( image, x, y )]);
1010 }
1011 XPutImage( display, dc->u.x.drawable, gc, image, 0, 0,
1012 visRectDst->left, visRectDst->top, width, height );
1013 XDestroyImage( image );
1014 }
1015 }
1016
1017
1018 /***********************************************************************
1019 * BITBLT_GetVisRectangles
1020 *
1021 * Get the source and destination visible rectangles for StretchBlt().
1022 * Return FALSE if one of the rectangles is empty.
1023 */
1024 static BOOL32 BITBLT_GetVisRectangles( DC *dcDst, INT32 xDst, INT32 yDst,
1025 INT32 widthDst, INT32 heightDst,
1026 DC *dcSrc, INT32 xSrc, INT32 ySrc,
1027 INT32 widthSrc, INT32 heightSrc,
1028 RECT32 *visRectSrc, RECT32 *visRectDst )
1029 {
1030 RECT32 rect, clipRect;
1031
1032 /* Get the destination visible rectangle */
1033
1034 SetRect32( &rect, xDst, yDst, xDst + widthDst, yDst + heightDst );
1035 if (widthDst < 0) SWAP_INT32( &rect.left, &rect.right );
1036 if (heightDst < 0) SWAP_INT32( &rect.top, &rect.bottom );
1037 GetRgnBox32( dcDst->w.hGCClipRgn, &clipRect );
1038 OffsetRect32( &clipRect, dcDst->w.DCOrgX, dcDst->w.DCOrgY );
1039 if (!IntersectRect32( visRectDst, &rect, &clipRect )) return FALSE;
1040
1041 /* Get the source visible rectangle */
1042
1043 if (!dcSrc) return TRUE;
1044 SetRect32( &rect, xSrc, ySrc, xSrc + widthSrc, ySrc + heightSrc );
1045 if (widthSrc < 0) SWAP_INT32( &rect.left, &rect.right );
1046 if (heightSrc < 0) SWAP_INT32( &rect.top, &rect.bottom );
1047 /* Apparently the clip region is only for output, so use hVisRgn here */
1048 GetRgnBox32( dcSrc->w.hVisRgn, &clipRect );
1049 OffsetRect32( &clipRect, dcSrc->w.DCOrgX, dcSrc->w.DCOrgY );
1050 if (!IntersectRect32( visRectSrc, &rect, &clipRect )) return FALSE;
1051
1052 /* Intersect the rectangles */
1053
1054 if ((widthSrc == widthDst) && (heightSrc == heightDst)) /* no stretching */
1055 {
1056 OffsetRect32( visRectSrc, xDst - xSrc, yDst - ySrc );
1057 if (!IntersectRect32( &rect, visRectSrc, visRectDst )) return FALSE;
1058 *visRectSrc = *visRectDst = rect;
1059 OffsetRect32( visRectSrc, xSrc - xDst, ySrc - yDst );
1060 }
1061 else /* stretching */
1062 {
1063 /* Map source rectangle into destination coordinates */
1064 rect.left = xDst + (visRectSrc->left - xSrc)*widthDst/widthSrc;
1065 rect.top = yDst + (visRectSrc->top - ySrc)*heightDst/heightSrc;
1066 rect.right = xDst + ((visRectSrc->right - xSrc)*widthDst)/widthSrc;
1067 rect.bottom = yDst + ((visRectSrc->bottom - ySrc)*heightDst)/heightSrc;
1068 if (rect.left > rect.right) SWAP_INT32( &rect.left, &rect.right );
1069 if (rect.top > rect.bottom) SWAP_INT32( &rect.top, &rect.bottom );
1070 InflateRect32( &rect, 1, 1 ); /* Avoid rounding errors */
1071 if (!IntersectRect32( visRectDst, &rect, visRectDst )) return FALSE;
1072
1073 /* Map destination rectangle back to source coordinates */
1074 rect = *visRectDst;
1075 rect.left = xSrc + (visRectDst->left - xDst)*widthSrc/widthDst;
1076 rect.top = ySrc + (visRectDst->top - yDst)*heightSrc/heightDst;
1077 rect.right = xSrc + ((visRectDst->right - xDst)*widthSrc)/widthDst;
1078 rect.bottom = ySrc + ((visRectDst->bottom - yDst)*heightSrc)/heightDst;
1079 if (rect.left > rect.right) SWAP_INT32( &rect.left, &rect.right );
1080 if (rect.top > rect.bottom) SWAP_INT32( &rect.top, &rect.bottom );
1081 InflateRect32( &rect, 1, 1 ); /* Avoid rounding errors */
1082 if (!IntersectRect32( visRectSrc, &rect, visRectSrc )) return FALSE;
1083 }
1084 return TRUE;
1085 }
1086
1087
1088 /***********************************************************************
1089 * BITBLT_InternalStretchBlt
1090 *
1091 * Implementation of PatBlt(), BitBlt() and StretchBlt().
1092 */
1093 BOOL32 BITBLT_InternalStretchBlt( DC *dcDst, INT32 xDst, INT32 yDst,
1094 INT32 widthDst, INT32 heightDst,
1095 DC *dcSrc, INT32 xSrc, INT32 ySrc,
1096 INT32 widthSrc, INT32 heightSrc, DWORD rop )
1097 {
1098 BOOL32 usePat, useSrc, useDst, destUsed, fStretch, fNullBrush;
1099 RECT32 visRectDst, visRectSrc;
1100 INT32 width, height;
1101 const BYTE *opcode;
1102 Pixmap pixmaps[3] = { 0, 0, 0 }; /* pixmaps for DST, SRC, TMP */
1103 GC tmpGC = 0;
1104
1105 usePat = (((rop >> 4) & 0x0f0000) != (rop & 0x0f0000));
1106 useSrc = (((rop >> 2) & 0x330000) != (rop & 0x330000));
1107 useDst = (((rop >> 1) & 0x550000) != (rop & 0x550000));
1108 if (!dcSrc && useSrc) return FALSE;
1109
1110 if (dcDst->w.flags & DC_DIRTY) CLIPPING_UpdateGCRegion( dcDst );
1111 if (dcSrc && (dcSrc->w.flags & DC_DIRTY)) CLIPPING_UpdateGCRegion( dcSrc );
1112
1113 /* Map the coordinates to device coords */
1114
1115 xDst = dcDst->w.DCOrgX + XLPTODP( dcDst, xDst );
1116 yDst = dcDst->w.DCOrgY + YLPTODP( dcDst, yDst );
1117 widthDst = widthDst * dcDst->vportExtX / dcDst->wndExtX;
1118 heightDst = heightDst * dcDst->vportExtY / dcDst->wndExtY;
1119
1120 dprintf_bitblt( stddeb, " vportdst=%d,%d-%d,%d wnddst=%d,%d-%d,%d\n",
1121 dcDst->vportOrgX, dcDst->vportOrgY,
1122 dcDst->vportExtX, dcDst->vportExtY,
1123 dcDst->wndOrgX, dcDst->wndOrgY,
1124 dcDst->wndExtX, dcDst->wndExtY );
1125 dprintf_bitblt( stddeb, " rectdst=%d,%d-%d,%d orgdst=%d,%d\n",
1126 xDst, yDst, widthDst, heightDst,
1127 dcDst->w.DCOrgX, dcDst->w.DCOrgY );
1128
1129 if (useSrc)
1130 {
1131 xSrc = dcSrc->w.DCOrgX + XLPTODP( dcSrc, xSrc );
1132 ySrc = dcSrc->w.DCOrgY + YLPTODP( dcSrc, ySrc );
1133 widthSrc = widthSrc * dcSrc->vportExtX / dcSrc->wndExtX;
1134 heightSrc = heightSrc * dcSrc->vportExtY / dcSrc->wndExtY;
1135 fStretch = (widthSrc != widthDst) || (heightSrc != heightDst);
1136 dprintf_bitblt( stddeb," vportsrc=%d,%d-%d,%d wndsrc=%d,%d-%d,%d\n",
1137 dcSrc->vportOrgX, dcSrc->vportOrgY,
1138 dcSrc->vportExtX, dcSrc->vportExtY,
1139 dcSrc->wndOrgX, dcSrc->wndOrgY,
1140 dcSrc->wndExtX, dcSrc->wndExtY );
1141 dprintf_bitblt( stddeb, " rectsrc=%d,%d-%d,%d orgsrc=%d,%d\n",
1142 xSrc, ySrc, widthSrc, heightSrc,
1143 dcSrc->w.DCOrgX, dcSrc->w.DCOrgY );
1144 if (!BITBLT_GetVisRectangles( dcDst, xDst, yDst, widthDst, heightDst,
1145 dcSrc, xSrc, ySrc, widthSrc, heightSrc,
1146 &visRectSrc, &visRectDst ))
1147 return TRUE;
1148 dprintf_bitblt( stddeb, " vissrc=%d,%d-%d,%d visdst=%d,%d-%d,%d\n",
1149 visRectSrc.left, visRectSrc.top,
1150 visRectSrc.right, visRectSrc.bottom,
1151 visRectDst.left, visRectDst.top,
1152 visRectDst.right, visRectDst.bottom );
1153 }
1154 else
1155 {
1156 fStretch = FALSE;
1157 if (!BITBLT_GetVisRectangles( dcDst, xDst, yDst, widthDst, heightDst,
1158 NULL, 0, 0, 0, 0, NULL, &visRectDst ))
1159 return TRUE;
1160 dprintf_bitblt( stddeb, " vissrc=none visdst=%d,%d-%d,%d\n",
1161 visRectDst.left, visRectDst.top,
1162 visRectDst.right, visRectDst.bottom );
1163 }
1164
1165 width = visRectDst.right - visRectDst.left;
1166 height = visRectDst.bottom - visRectDst.top;
1167
1168 if (!fStretch) switch(rop) /* A few optimisations */
1169 {
1170 case BLACKNESS: /* 0x00 */
1171 if ((dcDst->w.bitsPerPixel == 1) || !COLOR_PaletteToPixel)
1172 XSetFunction( display, dcDst->u.x.gc, GXclear );
1173 else
1174 {
1175 XSetFunction( display, dcDst->u.x.gc, GXcopy );
1176 XSetForeground( display, dcDst->u.x.gc, COLOR_PaletteToPixel[0] );
1177 XSetFillStyle( display, dcDst->u.x.gc, FillSolid );
1178 }
1179 XFillRectangle( display, dcDst->u.x.drawable, dcDst->u.x.gc,
1180 visRectDst.left, visRectDst.top, width, height );
1181 return TRUE;
1182
1183 case DSTINVERT: /* 0x55 */
1184 if ((dcDst->w.bitsPerPixel == 1) || !COLOR_PaletteToPixel ||
1185 !Options.perfectGraphics)
1186 {
1187 XSetFunction( display, dcDst->u.x.gc, GXinvert );
1188
1189 if( COLOR_GetSystemPaletteFlags() & (COLOR_PRIVATE | COLOR_VIRTUAL) )
1190 XSetFunction( display, dcDst->u.x.gc, GXinvert);
1191 else
1192 {
1193 /* Xor is much better when we do not have full colormap. */
1194 /* Using white^black ensures that we invert at least black */
1195 /* and white. */
1196 Pixel xor_pix = (WhitePixelOfScreen(screen) ^
1197 BlackPixelOfScreen(screen));
1198 XSetFunction( display, dcDst->u.x.gc, GXxor );
1199 XSetForeground( display, dcDst->u.x.gc, xor_pix);
1200 XSetFillStyle( display, dcDst->u.x.gc, FillSolid );
1201 }
1202 XFillRectangle( display, dcDst->u.x.drawable, dcDst->u.x.gc,
1203 visRectDst.left, visRectDst.top, width, height );
1204 return TRUE;
1205 }
1206 break;
1207
1208 case PATINVERT: /* 0x5a */
1209 if (Options.perfectGraphics) break;
1210 if (!DC_SetupGCForBrush( dcDst )) return TRUE;
1211 XSetFunction( display, dcDst->u.x.gc, GXxor );
1212 XFillRectangle( display, dcDst->u.x.drawable, dcDst->u.x.gc,
1213 visRectDst.left, visRectDst.top, width, height );
1214 return TRUE;
1215
1216 case SRCCOPY: /* 0xcc */
1217 if (dcSrc->w.bitsPerPixel == dcDst->w.bitsPerPixel)
1218 {
1219 XSetGraphicsExposures( display, dcDst->u.x.gc, True );
1220 XSetFunction( display, dcDst->u.x.gc, GXcopy );
1221 XCopyArea( display, dcSrc->u.x.drawable,
1222 dcDst->u.x.drawable, dcDst->u.x.gc,
1223 visRectSrc.left, visRectSrc.top,
1224 width, height, visRectDst.left, visRectDst.top );
1225 XSetGraphicsExposures( display, dcDst->u.x.gc, False );
1226 return TRUE;
1227 }
1228 if (dcSrc->w.bitsPerPixel == 1)
1229 {
1230 XSetBackground( display, dcDst->u.x.gc, dcDst->w.textPixel );
1231 XSetForeground( display, dcDst->u.x.gc, dcDst->w.backgroundPixel );
1232 XSetFunction( display, dcDst->u.x.gc, GXcopy );
1233 XSetGraphicsExposures( display, dcDst->u.x.gc, True );
1234 XCopyPlane( display, dcSrc->u.x.drawable,
1235 dcDst->u.x.drawable, dcDst->u.x.gc,
1236 visRectSrc.left, visRectSrc.top,
1237 width, height, visRectDst.left, visRectDst.top, 1 );
1238 XSetGraphicsExposures( display, dcDst->u.x.gc, False );
1239 return TRUE;
1240 }
1241 break;
1242
1243 case PATCOPY: /* 0xf0 */
1244 if (!DC_SetupGCForBrush( dcDst )) return TRUE;
1245 XSetFunction( display, dcDst->u.x.gc, GXcopy );
1246 XFillRectangle( display, dcDst->u.x.drawable, dcDst->u.x.gc,
1247 visRectDst.left, visRectDst.top, width, height );
1248 return TRUE;
1249
1250 case WHITENESS: /* 0xff */
1251 if ((dcDst->w.bitsPerPixel == 1) || !COLOR_PaletteToPixel)
1252 XSetFunction( display, dcDst->u.x.gc, GXset );
1253 else
1254 {
1255 XSetFunction( display, dcDst->u.x.gc, GXcopy );
1256 XSetForeground( display, dcDst->u.x.gc,
1257 COLOR_PaletteToPixel[COLOR_GetSystemPaletteSize() - 1]);
1258 XSetFillStyle( display, dcDst->u.x.gc, FillSolid );
1259 }
1260 XFillRectangle( display, dcDst->u.x.drawable, dcDst->u.x.gc,
1261 visRectDst.left, visRectDst.top, width, height );
1262 return TRUE;
1263 }
1264
1265 tmpGC = XCreateGC( display, dcDst->u.x.drawable, 0, NULL );
1266 pixmaps[DST] = XCreatePixmap( display, rootWindow, width, height,
1267 dcDst->w.bitsPerPixel );
1268 if (useSrc)
1269 {
1270 pixmaps[SRC] = XCreatePixmap( display, rootWindow, width, height,
1271 dcDst->w.bitsPerPixel );
1272 if (fStretch)
1273 BITBLT_GetSrcAreaStretch( dcSrc, dcDst, pixmaps[SRC], tmpGC,
1274 xSrc, ySrc, widthSrc, heightSrc,
1275 xDst, yDst, widthDst, heightDst,
1276 &visRectSrc, &visRectDst );
1277 else
1278 BITBLT_GetSrcArea( dcSrc, dcDst, pixmaps[SRC], tmpGC,
1279 xSrc, ySrc, &visRectSrc );
1280 }
1281 if (useDst) BITBLT_GetDstArea( dcDst, pixmaps[DST], tmpGC, &visRectDst );
1282 if (usePat) fNullBrush = !DC_SetupGCForPatBlt( dcDst, tmpGC, TRUE );
1283 else fNullBrush = FALSE;
1284 destUsed = FALSE;
1285
1286 for (opcode = BITBLT_Opcodes[(rop >> 16) & 0xff]; *opcode; opcode++)
1287 {
1288 if (OP_DST(*opcode) == DST) destUsed = TRUE;
1289 XSetFunction( display, tmpGC, OP_ROP(*opcode) );
1290 switch(OP_SRCDST(*opcode))
1291 {
1292 case OP_ARGS(DST,TMP):
1293 case OP_ARGS(SRC,TMP):
1294 if (!pixmaps[TMP])
1295 pixmaps[TMP] = XCreatePixmap( display, rootWindow,
1296 width, height,
1297 dcDst->w.bitsPerPixel );
1298 /* fall through */
1299 case OP_ARGS(DST,SRC):
1300 case OP_ARGS(SRC,DST):
1301 case OP_ARGS(TMP,SRC):
1302 case OP_ARGS(TMP,DST):
1303 XCopyArea( display, pixmaps[OP_SRC(*opcode)],
1304 pixmaps[OP_DST(*opcode)], tmpGC,
1305 0, 0, width, height, 0, 0 );
1306 break;
1307
1308 case OP_ARGS(PAT,TMP):
1309 if (!pixmaps[TMP] && !fNullBrush)
1310 pixmaps[TMP] = XCreatePixmap( display, rootWindow,
1311 width, height,
1312 dcDst->w.bitsPerPixel );
1313 /* fall through */
1314 case OP_ARGS(PAT,DST):
1315 case OP_ARGS(PAT,SRC):
1316 if (!fNullBrush)
1317 XFillRectangle( display, pixmaps[OP_DST(*opcode)],
1318 tmpGC, 0, 0, width, height );
1319 break;
1320 }
1321 }
1322 XSetFunction( display, dcDst->u.x.gc, GXcopy );
1323 BITBLT_PutDstArea( dcDst, pixmaps[destUsed ? DST : SRC],
1324 dcDst->u.x.gc, &visRectDst );
1325 XFreePixmap( display, pixmaps[DST] );
1326 if (pixmaps[SRC]) XFreePixmap( display, pixmaps[SRC] );
1327 if (pixmaps[TMP]) XFreePixmap( display, pixmaps[TMP] );
1328 XFreeGC( display, tmpGC );
1329 return TRUE;
1330 }
1331
1332
1333 /***********************************************************************
1334 * X11DRV_PatBlt
1335 */
1336 BOOL32 X11DRV_PatBlt( DC *dc, INT32 left, INT32 top,
1337 INT32 width, INT32 height, DWORD rop )
1338 {
1339 return CallTo32_LargeStack( (int(*)())BITBLT_InternalStretchBlt, 11,
1340 dc, left, top, width, height,
1341 NULL, 0, 0, 0, 0, rop );
1342 }
1343
1344
1345 /***********************************************************************
1346 * X11DRV_BitBlt
1347 */
1348 BOOL32 X11DRV_BitBlt( DC *dcDst, INT32 xDst, INT32 yDst,
1349 INT32 width, INT32 height, DC *dcSrc,
1350 INT32 xSrc, INT32 ySrc, DWORD rop )
1351 {
1352 return CallTo32_LargeStack( (int(*)())BITBLT_InternalStretchBlt, 11,
1353 dcDst, xDst, yDst, width, height,
1354 dcSrc, xSrc, ySrc, width, height, rop );
1355 }
1356
1357
1358 /***********************************************************************
1359 * X11DRV_StretchBlt
1360 */
1361 BOOL32 X11DRV_StretchBlt( DC *dcDst, INT32 xDst, INT32 yDst,
1362 INT32 widthDst, INT32 heightDst,
1363 DC *dcSrc, INT32 xSrc, INT32 ySrc,
1364 INT32 widthSrc, INT32 heightSrc, DWORD rop )
1365 {
1366 return CallTo32_LargeStack( (int(*)())BITBLT_InternalStretchBlt, 11,
1367 dcDst, xDst, yDst, widthDst, heightDst,
1368 dcSrc, xSrc, ySrc, widthSrc, heightSrc, rop );
1369 }
Maarten's multimedia branch