Mercurial > sdl-ios-xcode
annotate src/video/SDL_yuv_mmx.c @ 288:2f5a6062db86
Updated for Watcom C++ and LCC compilers
author | Sam Lantinga <slouken@libsdl.org> |
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date | Thu, 28 Feb 2002 00:28:26 +0000 |
parents | e8157fcb3114 |
children | f6ffac90895c |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga | |
4 | |
5 This library is free software; you can redistribute it and/or | |
6 modify it under the terms of the GNU Library General Public | |
7 License as published by the Free Software Foundation; either | |
8 version 2 of the License, or (at your option) any later version. | |
9 | |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 Library General Public License for more details. | |
14 | |
15 You should have received a copy of the GNU Library General Public | |
16 License along with this library; if not, write to the Free | |
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | |
19 Sam Lantinga | |
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
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20 slouken@libsdl.org |
0 | 21 */ |
22 | |
23 #ifdef SAVE_RCSID | |
24 static char rcsid = | |
25 "@(#) $Id$"; | |
26 #endif | |
27 | |
28 | |
29 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT) | |
30 | |
31 #include "SDL_types.h" | |
32 | |
33 #ifdef __ELF__ | |
34 #define ASM_VAR(X) _##X | |
35 #else | |
36 #define ASM_VAR(X) X | |
37 #endif | |
38 | |
39 static unsigned int ASM_VAR(MMX_0080w)[] = {0x00800080, 0x00800080}; | |
40 static unsigned int ASM_VAR(MMX_00FFw)[] = {0x00ff00ff, 0x00ff00ff}; | |
41 static unsigned int ASM_VAR(MMX_FF00w)[] = {0xff00ff00, 0xff00ff00}; | |
42 | |
43 static unsigned short ASM_VAR(MMX_Ycoeff)[] = {0x004a, 0x004a, 0x004a, 0x004a}; | |
44 | |
45 static unsigned short ASM_VAR(MMX_UbluRGB)[] = {0x0072, 0x0072, 0x0072, 0x0072}; | |
46 static unsigned short ASM_VAR(MMX_VredRGB)[] = {0x0059, 0x0059, 0x0059, 0x0059}; | |
47 static unsigned short ASM_VAR(MMX_UgrnRGB)[] = {0xffea, 0xffea, 0xffea, 0xffea}; | |
48 static unsigned short ASM_VAR(MMX_VgrnRGB)[] = {0xffd2, 0xffd2, 0xffd2, 0xffd2}; | |
49 | |
50 static unsigned short ASM_VAR(MMX_Ublu5x5)[] = {0x0081, 0x0081, 0x0081, 0x0081}; | |
51 static unsigned short ASM_VAR(MMX_Vred5x5)[] = {0x0066, 0x0066, 0x0066, 0x0066}; | |
52 static unsigned short ASM_VAR(MMX_Ugrn555)[] = {0xffe7, 0xffe7, 0xffe7, 0xffe7}; | |
53 static unsigned short ASM_VAR(MMX_Vgrn555)[] = {0xffcc, 0xffcc, 0xffcc, 0xffcc}; | |
54 static unsigned short ASM_VAR(MMX_Ugrn565)[] = {0xffe8, 0xffe8, 0xffe8, 0xffe8}; | |
55 static unsigned short ASM_VAR(MMX_Vgrn565)[] = {0xffcd, 0xffcd, 0xffcd, 0xffcd}; | |
56 | |
57 static unsigned short ASM_VAR(MMX_red555)[] = {0x7c00, 0x7c00, 0x7c00, 0x7c00}; | |
58 static unsigned short ASM_VAR(MMX_red565)[] = {0xf800, 0xf800, 0xf800, 0xf800}; | |
59 static unsigned short ASM_VAR(MMX_grn555)[] = {0x03e0, 0x03e0, 0x03e0, 0x03e0}; | |
60 static unsigned short ASM_VAR(MMX_grn565)[] = {0x07e0, 0x07e0, 0x07e0, 0x07e0}; | |
61 static unsigned short ASM_VAR(MMX_blu5x5)[] = {0x001f, 0x001f, 0x001f, 0x001f}; | |
62 | |
63 /** | |
64 This MMX assembler is my first assembler/MMX program ever. | |
65 Thus it maybe buggy. | |
66 Send patches to: | |
67 mvogt@rhrk.uni-kl.de | |
68 | |
69 After it worked fine I have "obfuscated" the code a bit to have | |
70 more parallism in the MMX units. This means I moved | |
71 initilisation around and delayed other instruction. | |
72 Performance measurement did not show that this brought any advantage | |
73 but in theory it _should_ be faster this way. | |
74 | |
75 The overall performanve gain to the C based dither was 30%-40%. | |
76 The MMX routine calculates 256bit=8RGB values in each cycle | |
77 (4 for row1 & 4 for row2) | |
78 | |
79 The red/green/blue.. coefficents are taken from the mpeg_play | |
80 player. They look nice, but I dont know if you can have | |
81 better values, to avoid integer rounding errors. | |
82 | |
83 | |
84 IMPORTANT: | |
85 ========== | |
86 | |
87 It is a requirement that the cr/cb/lum are 8 byte aligned and | |
88 the out are 16byte aligned or you will/may get segfaults | |
89 | |
90 */ | |
91 | |
92 void ColorRGBDitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, | |
93 unsigned char *lum, unsigned char *cr, | |
94 unsigned char *cb, unsigned char *out, | |
95 int rows, int cols, int mod ) | |
96 { | |
97 Uint32 *row1; | |
98 Uint32 *row2; | |
99 | |
100 unsigned char* y = lum +cols*rows; // Pointer to the end | |
101 int x=0; | |
102 row1 = (Uint32 *)out; // 32 bit target | |
103 row2 = (Uint32 *)out+cols+mod; // start of second row | |
104 mod = (mod+cols+mod)*4; // increment for row1 in byte | |
105 | |
106 __asm__ __volatile__ ( | |
107 /* We don't really care about PIC - the code should be rewritten to use | |
108 relative addressing for the static tables, so right now we take the | |
109 COW hit on the pages this code resides. Big deal. | |
110 This spill is just to reduce register pressure in the PIC case. */ | |
111 "pushl %%ebx\n" | |
112 "movl %0, %%ebx\n" | |
113 | |
114 ".align 8\n" | |
115 "1:\n" | |
116 | |
117 // create Cr (result in mm1) | |
118 "movd (%%ebx), %%mm1\n" // 0 0 0 0 v3 v2 v1 v0 | |
119 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 | |
120 "movd (%2), %%mm2\n" // 0 0 0 0 l3 l2 l1 l0 | |
121 "punpcklbw %%mm7,%%mm1\n" // 0 v3 0 v2 00 v1 00 v0 | |
122 "punpckldq %%mm1,%%mm1\n" // 00 v1 00 v0 00 v1 00 v0 | |
123 "psubw _MMX_0080w,%%mm1\n" // mm1-128:r1 r1 r0 r0 r1 r1 r0 r0 | |
124 | |
125 // create Cr_g (result in mm0) | |
126 "movq %%mm1,%%mm0\n" // r1 r1 r0 r0 r1 r1 r0 r0 | |
127 "pmullw _MMX_VgrnRGB,%%mm0\n"// red*-46dec=0.7136*64 | |
128 "pmullw _MMX_VredRGB,%%mm1\n"// red*89dec=1.4013*64 | |
129 "psraw $6, %%mm0\n" // red=red/64 | |
130 "psraw $6, %%mm1\n" // red=red/64 | |
131 | |
132 // create L1 L2 (result in mm2,mm4) | |
133 // L2=lum+cols | |
134 "movq (%2,%4),%%mm3\n" // 0 0 0 0 L3 L2 L1 L0 | |
135 "punpckldq %%mm3,%%mm2\n" // L3 L2 L1 L0 l3 l2 l1 l0 | |
136 "movq %%mm2,%%mm4\n" // L3 L2 L1 L0 l3 l2 l1 l0 | |
137 "pand _MMX_FF00w,%%mm2\n" // L3 0 L1 0 l3 0 l1 0 | |
138 "pand _MMX_00FFw,%%mm4\n" // 0 L2 0 L0 0 l2 0 l0 | |
139 "psrlw $8,%%mm2\n" // 0 L3 0 L1 0 l3 0 l1 | |
140 | |
141 // create R (result in mm6) | |
142 "movq %%mm2,%%mm5\n" // 0 L3 0 L1 0 l3 0 l1 | |
143 "movq %%mm4,%%mm6\n" // 0 L2 0 L0 0 l2 0 l0 | |
144 "paddsw %%mm1, %%mm5\n" // lum1+red:x R3 x R1 x r3 x r1 | |
145 "paddsw %%mm1, %%mm6\n" // lum1+red:x R2 x R0 x r2 x r0 | |
146 "packuswb %%mm5,%%mm5\n" // R3 R1 r3 r1 R3 R1 r3 r1 | |
147 "packuswb %%mm6,%%mm6\n" // R2 R0 r2 r0 R2 R0 r2 r0 | |
148 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 | |
149 "punpcklbw %%mm5,%%mm6\n" // R3 R2 R1 R0 r3 r2 r1 r0 | |
150 | |
151 // create Cb (result in mm1) | |
152 "movd (%1), %%mm1\n" // 0 0 0 0 u3 u2 u1 u0 | |
153 "punpcklbw %%mm7,%%mm1\n" // 0 u3 0 u2 00 u1 00 u0 | |
154 "punpckldq %%mm1,%%mm1\n" // 00 u1 00 u0 00 u1 00 u0 | |
155 "psubw _MMX_0080w,%%mm1\n" // mm1-128:u1 u1 u0 u0 u1 u1 u0 u0 | |
156 // create Cb_g (result in mm5) | |
157 "movq %%mm1,%%mm5\n" // u1 u1 u0 u0 u1 u1 u0 u0 | |
158 "pmullw _MMX_UgrnRGB,%%mm5\n" // blue*-109dec=1.7129*64 | |
159 "pmullw _MMX_UbluRGB,%%mm1\n" // blue*114dec=1.78125*64 | |
160 "psraw $6, %%mm5\n" // blue=red/64 | |
161 "psraw $6, %%mm1\n" // blue=blue/64 | |
162 | |
163 // create G (result in mm7) | |
164 "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 | |
165 "movq %%mm4,%%mm7\n" // 0 L2 0 L0 0 l2 0 l1 | |
166 "paddsw %%mm5, %%mm3\n" // lum1+Cb_g:x G3t x G1t x g3t x g1t | |
167 "paddsw %%mm5, %%mm7\n" // lum1+Cb_g:x G2t x G0t x g2t x g0t | |
168 "paddsw %%mm0, %%mm3\n" // lum1+Cr_g:x G3 x G1 x g3 x g1 | |
169 "paddsw %%mm0, %%mm7\n" // lum1+blue:x G2 x G0 x g2 x g0 | |
170 "packuswb %%mm3,%%mm3\n" // G3 G1 g3 g1 G3 G1 g3 g1 | |
171 "packuswb %%mm7,%%mm7\n" // G2 G0 g2 g0 G2 G0 g2 g0 | |
172 "punpcklbw %%mm3,%%mm7\n" // G3 G2 G1 G0 g3 g2 g1 g0 | |
173 | |
174 // create B (result in mm5) | |
175 "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 | |
176 "movq %%mm4,%%mm5\n" // 0 L2 0 L0 0 l2 0 l1 | |
177 "paddsw %%mm1, %%mm3\n" // lum1+blue:x B3 x B1 x b3 x b1 | |
178 "paddsw %%mm1, %%mm5\n" // lum1+blue:x B2 x B0 x b2 x b0 | |
179 "packuswb %%mm3,%%mm3\n" // B3 B1 b3 b1 B3 B1 b3 b1 | |
180 "packuswb %%mm5,%%mm5\n" // B2 B0 b2 b0 B2 B0 b2 b0 | |
181 "punpcklbw %%mm3,%%mm5\n" // B3 B2 B1 B0 b3 b2 b1 b0 | |
182 | |
183 // fill destination row1 (needed are mm6=Rr,mm7=Gg,mm5=Bb) | |
184 | |
185 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
186 "pxor %%mm4,%%mm4\n" // 0 0 0 0 0 0 0 0 | |
187 "movq %%mm6,%%mm1\n" // R3 R2 R1 R0 r3 r2 r1 r0 | |
188 "movq %%mm5,%%mm3\n" // B3 B2 B1 B0 b3 b2 b1 b0 | |
189 // process lower lum | |
190 "punpcklbw %%mm4,%%mm1\n" // 0 r3 0 r2 0 r1 0 r0 | |
191 "punpcklbw %%mm4,%%mm3\n" // 0 b3 0 b2 0 b1 0 b0 | |
192 "movq %%mm1,%%mm2\n" // 0 r3 0 r2 0 r1 0 r0 | |
193 "movq %%mm3,%%mm0\n" // 0 b3 0 b2 0 b1 0 b0 | |
194 "punpcklwd %%mm1,%%mm3\n" // 0 r1 0 b1 0 r0 0 b0 | |
195 "punpckhwd %%mm2,%%mm0\n" // 0 r3 0 b3 0 r2 0 b2 | |
196 | |
197 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
198 "movq %%mm7,%%mm1\n" // G3 G2 G1 G0 g3 g2 g1 g0 | |
199 "punpcklbw %%mm1,%%mm2\n" // g3 0 g2 0 g1 0 g0 0 | |
200 "punpcklwd %%mm4,%%mm2\n" // 0 0 g1 0 0 0 g0 0 | |
201 "por %%mm3, %%mm2\n" // 0 r1 g1 b1 0 r0 g0 b0 | |
202 "movq %%mm2,(%3)\n" // wrote out ! row1 | |
203 | |
204 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
205 "punpcklbw %%mm1,%%mm4\n" // g3 0 g2 0 g1 0 g0 0 | |
206 "punpckhwd %%mm2,%%mm4\n" // 0 0 g3 0 0 0 g2 0 | |
207 "por %%mm0, %%mm4\n" // 0 r3 g3 b3 0 r2 g2 b2 | |
208 "movq %%mm4,8(%3)\n" // wrote out ! row1 | |
209 | |
210 // fill destination row2 (needed are mm6=Rr,mm7=Gg,mm5=Bb) | |
211 // this can be done "destructive" | |
212 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
213 "punpckhbw %%mm2,%%mm6\n" // 0 R3 0 R2 0 R1 0 R0 | |
214 "punpckhbw %%mm1,%%mm5\n" // G3 B3 G2 B2 G1 B1 G0 B0 | |
215 "movq %%mm5,%%mm1\n" // G3 B3 G2 B2 G1 B1 G0 B0 | |
216 "punpcklwd %%mm6,%%mm1\n" // 0 R1 G1 B1 0 R0 G0 B0 | |
217 "movq %%mm1,(%5)\n" // wrote out ! row2 | |
218 "punpckhwd %%mm6,%%mm5\n" // 0 R3 G3 B3 0 R2 G2 B2 | |
219 "movq %%mm5,8(%5)\n" // wrote out ! row2 | |
220 | |
221 "addl $4,%2\n" // lum+4 | |
222 "leal 16(%3),%3\n" // row1+16 | |
223 "leal 16(%5),%5\n" // row2+16 | |
224 "addl $2, %%ebx\n" // cr+2 | |
225 "addl $2, %1\n" // cb+2 | |
226 | |
227 "addl $4,%6\n" // x+4 | |
228 "cmpl %4,%6\n" | |
229 | |
230 "jl 1b\n" | |
231 "addl %4, %2\n" // lum += cols | |
232 "addl %8, %3\n" // row1+= mod | |
233 "addl %8, %5\n" // row2+= mod | |
234 "movl $0, %6\n" // x=0 | |
235 "cmpl %7, %2\n" | |
236 "jl 1b\n" | |
237 "emms\n" | |
238 "popl %%ebx\n" | |
239 : | |
240 : "m" (cr), "r"(cb),"r"(lum), | |
241 "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod) | |
242 : "%ebx" | |
243 ); | |
244 } | |
245 | |
246 void Color565DitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, | |
247 unsigned char *lum, unsigned char *cr, | |
248 unsigned char *cb, unsigned char *out, | |
249 int rows, int cols, int mod ) | |
250 { | |
251 Uint16 *row1; | |
252 Uint16 *row2; | |
253 | |
254 unsigned char* y = lum +cols*rows; /* Pointer to the end */ | |
255 int x=0; | |
256 row1 = (Uint16 *)out; /* 16 bit target */ | |
257 row2 = (Uint16 *)out+cols+mod; /* start of second row */ | |
258 mod = (mod+cols+mod)*2; /* increment for row1 in byte */ | |
259 | |
260 | |
261 __asm__ __volatile__( | |
262 "pushl %%ebx\n" | |
263 "movl %0, %%ebx\n" | |
264 | |
265 ".align 8\n" | |
266 "1:\n" | |
267 "movd (%1), %%mm0\n" // 4 Cb 0 0 0 0 u3 u2 u1 u0 | |
268 "pxor %%mm7, %%mm7\n" | |
269 "movd (%%ebx), %%mm1\n" // 4 Cr 0 0 0 0 v3 v2 v1 v0 | |
270 "punpcklbw %%mm7, %%mm0\n" // 4 W cb 0 u3 0 u2 0 u1 0 u0 | |
271 "punpcklbw %%mm7, %%mm1\n" // 4 W cr 0 v3 0 v2 0 v1 0 v0 | |
272 "psubw _MMX_0080w, %%mm0\n" | |
273 "psubw _MMX_0080w, %%mm1\n" | |
274 "movq %%mm0, %%mm2\n" // Cb 0 u3 0 u2 0 u1 0 u0 | |
275 "movq %%mm1, %%mm3\n" // Cr | |
276 "pmullw _MMX_Ugrn565, %%mm2\n" // Cb2green 0 R3 0 R2 0 R1 0 R0 | |
277 "movq (%2), %%mm6\n" // L1 l7 L6 L5 L4 L3 L2 L1 L0 | |
278 "pmullw _MMX_Ublu5x5, %%mm0\n" // Cb2blue | |
279 "pand _MMX_00FFw, %%mm6\n" // L1 00 L6 00 L4 00 L2 00 L0 | |
280 "pmullw _MMX_Vgrn565, %%mm3\n" // Cr2green | |
281 "movq (%2), %%mm7\n" // L2 | |
282 "pmullw _MMX_Vred5x5, %%mm1\n" // Cr2red | |
283 "psrlw $8, %%mm7\n" // L2 00 L7 00 L5 00 L3 00 L1 | |
284 "pmullw _MMX_Ycoeff, %%mm6\n" // lum1 | |
285 "paddw %%mm3, %%mm2\n" // Cb2green + Cr2green == green | |
286 "pmullw _MMX_Ycoeff, %%mm7\n" // lum2 | |
287 | |
288 "movq %%mm6, %%mm4\n" // lum1 | |
289 "paddw %%mm0, %%mm6\n" // lum1 +blue 00 B6 00 B4 00 B2 00 B0 | |
290 "movq %%mm4, %%mm5\n" // lum1 | |
291 "paddw %%mm1, %%mm4\n" // lum1 +red 00 R6 00 R4 00 R2 00 R0 | |
292 "paddw %%mm2, %%mm5\n" // lum1 +green 00 G6 00 G4 00 G2 00 G0 | |
293 "psraw $6, %%mm4\n" // R1 0 .. 64 | |
294 "movq %%mm7, %%mm3\n" // lum2 00 L7 00 L5 00 L3 00 L1 | |
295 "psraw $6, %%mm5\n" // G1 - .. + | |
296 "paddw %%mm0, %%mm7\n" // Lum2 +blue 00 B7 00 B5 00 B3 00 B1 | |
297 "psraw $6, %%mm6\n" // B1 0 .. 64 | |
298 "packuswb %%mm4, %%mm4\n" // R1 R1 | |
299 "packuswb %%mm5, %%mm5\n" // G1 G1 | |
300 "packuswb %%mm6, %%mm6\n" // B1 B1 | |
301 "punpcklbw %%mm4, %%mm4\n" | |
302 "punpcklbw %%mm5, %%mm5\n" | |
303 | |
304 "pand _MMX_red565, %%mm4\n" | |
305 "psllw $3, %%mm5\n" // GREEN 1 | |
306 "punpcklbw %%mm6, %%mm6\n" | |
307 "pand _MMX_grn565, %%mm5\n" | |
308 "pand _MMX_red565, %%mm6\n" | |
309 "por %%mm5, %%mm4\n" // | |
310 "psrlw $11, %%mm6\n" // BLUE 1 | |
311 "movq %%mm3, %%mm5\n" // lum2 | |
312 "paddw %%mm1, %%mm3\n" // lum2 +red 00 R7 00 R5 00 R3 00 R1 | |
313 "paddw %%mm2, %%mm5\n" // lum2 +green 00 G7 00 G5 00 G3 00 G1 | |
314 "psraw $6, %%mm3\n" // R2 | |
315 "por %%mm6, %%mm4\n" // MM4 | |
316 "psraw $6, %%mm5\n" // G2 | |
317 "movq (%2, %4), %%mm6\n" // L3 load lum2 | |
318 "psraw $6, %%mm7\n" | |
319 "packuswb %%mm3, %%mm3\n" | |
320 "packuswb %%mm5, %%mm5\n" | |
321 "packuswb %%mm7, %%mm7\n" | |
322 "pand _MMX_00FFw, %%mm6\n" // L3 | |
323 "punpcklbw %%mm3, %%mm3\n" | |
324 "punpcklbw %%mm5, %%mm5\n" | |
325 "pmullw _MMX_Ycoeff, %%mm6\n" // lum3 | |
326 "punpcklbw %%mm7, %%mm7\n" | |
327 "psllw $3, %%mm5\n" // GREEN 2 | |
328 "pand _MMX_red565, %%mm7\n" | |
329 "pand _MMX_red565, %%mm3\n" | |
330 "psrlw $11, %%mm7\n" // BLUE 2 | |
331 "pand _MMX_grn565, %%mm5\n" | |
332 "por %%mm7, %%mm3\n" | |
333 "movq (%2,%4), %%mm7\n" // L4 load lum2 | |
334 "por %%mm5, %%mm3\n" // | |
335 "psrlw $8, %%mm7\n" // L4 | |
336 "movq %%mm4, %%mm5\n" | |
337 "punpcklwd %%mm3, %%mm4\n" | |
338 "pmullw _MMX_Ycoeff, %%mm7\n" // lum4 | |
339 "punpckhwd %%mm3, %%mm5\n" | |
340 | |
341 "movq %%mm4, (%3)\n" // write row1 | |
342 "movq %%mm5, 8(%3)\n" // write row1 | |
343 | |
344 "movq %%mm6, %%mm4\n" // Lum3 | |
345 "paddw %%mm0, %%mm6\n" // Lum3 +blue | |
346 | |
347 "movq %%mm4, %%mm5\n" // Lum3 | |
348 "paddw %%mm1, %%mm4\n" // Lum3 +red | |
349 "paddw %%mm2, %%mm5\n" // Lum3 +green | |
350 "psraw $6, %%mm4\n" | |
351 "movq %%mm7, %%mm3\n" // Lum4 | |
352 "psraw $6, %%mm5\n" | |
353 "paddw %%mm0, %%mm7\n" // Lum4 +blue | |
354 "psraw $6, %%mm6\n" // Lum3 +blue | |
355 "movq %%mm3, %%mm0\n" // Lum4 | |
356 "packuswb %%mm4, %%mm4\n" | |
357 "paddw %%mm1, %%mm3\n" // Lum4 +red | |
358 "packuswb %%mm5, %%mm5\n" | |
359 "paddw %%mm2, %%mm0\n" // Lum4 +green | |
360 "packuswb %%mm6, %%mm6\n" | |
361 "punpcklbw %%mm4, %%mm4\n" | |
362 "punpcklbw %%mm5, %%mm5\n" | |
363 "punpcklbw %%mm6, %%mm6\n" | |
364 "psllw $3, %%mm5\n" // GREEN 3 | |
365 "pand _MMX_red565, %%mm4\n" | |
366 "psraw $6, %%mm3\n" // psr 6 | |
367 "psraw $6, %%mm0\n" | |
368 "pand _MMX_red565, %%mm6\n" // BLUE | |
369 "pand _MMX_grn565, %%mm5\n" | |
370 "psrlw $11, %%mm6\n" // BLUE 3 | |
371 "por %%mm5, %%mm4\n" | |
372 "psraw $6, %%mm7\n" | |
373 "por %%mm6, %%mm4\n" | |
374 "packuswb %%mm3, %%mm3\n" | |
375 "packuswb %%mm0, %%mm0\n" | |
376 "packuswb %%mm7, %%mm7\n" | |
377 "punpcklbw %%mm3, %%mm3\n" | |
378 "punpcklbw %%mm0, %%mm0\n" | |
379 "punpcklbw %%mm7, %%mm7\n" | |
380 "pand _MMX_red565, %%mm3\n" | |
381 "pand _MMX_red565, %%mm7\n" // BLUE | |
382 "psllw $3, %%mm0\n" // GREEN 4 | |
383 "psrlw $11, %%mm7\n" | |
384 "pand _MMX_grn565, %%mm0\n" | |
385 "por %%mm7, %%mm3\n" | |
386 "por %%mm0, %%mm3\n" | |
387 | |
388 "movq %%mm4, %%mm5\n" | |
389 | |
390 "punpcklwd %%mm3, %%mm4\n" | |
391 "punpckhwd %%mm3, %%mm5\n" | |
392 | |
393 "movq %%mm4, (%5)\n" | |
394 "movq %%mm5, 8(%5)\n" | |
395 | |
396 "addl $8, %6\n" | |
397 "addl $8, %2\n" | |
398 "addl $4, %%ebx\n" | |
399 "addl $4, %1\n" | |
400 "cmpl %4, %6\n" | |
401 "leal 16(%3), %3\n" | |
402 "leal 16(%5),%5\n" // row2+16 | |
403 | |
404 | |
405 "jl 1b\n" | |
406 "addl %4, %2\n" // lum += cols | |
407 "addl %8, %3\n" // row1+= mod | |
408 "addl %8, %5\n" // row2+= mod | |
409 "movl $0, %6\n" // x=0 | |
410 "cmpl %7, %2\n" | |
411 "jl 1b\n" | |
412 "emms\n" | |
413 "popl %%ebx\n" | |
414 : | |
415 :"m" (cr), "r"(cb),"r"(lum), | |
416 "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod) | |
417 : "%ebx" | |
418 ); | |
419 } | |
420 | |
421 #endif /* GCC i386 inline assembly */ |