e14743d1 |
1 | /* |
2 | SDL - Simple DirectMedia Layer |
3 | Copyright (C) 1997-2009 Sam Lantinga |
4 | |
5 | This library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 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 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with this library; if not, write to the Free Software |
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
18 | |
19 | Sam Lantinga |
20 | slouken@libsdl.org |
21 | */ |
22 | #include "SDL_config.h" |
23 | |
24 | #if (__GNUC__ > 2) && defined(__i386__) && __OPTIMIZE__ && SDL_ASSEMBLY_ROUTINES |
25 | |
26 | #include "SDL_stdinc.h" |
27 | |
28 | #include "mmx.h" |
29 | |
30 | /* *INDENT-OFF* */ |
31 | |
32 | static mmx_t MMX_0080w = { .ud = {0x00800080, 0x00800080} }; |
33 | static mmx_t MMX_00FFw = { .ud = {0x00ff00ff, 0x00ff00ff} }; |
34 | static mmx_t MMX_FF00w = { .ud = {0xff00ff00, 0xff00ff00} }; |
35 | |
36 | static mmx_t MMX_Ycoeff = { .uw = {0x004a, 0x004a, 0x004a, 0x004a} }; |
37 | |
38 | static mmx_t MMX_UbluRGB = { .uw = {0x0072, 0x0072, 0x0072, 0x0072} }; |
39 | static mmx_t MMX_VredRGB = { .uw = {0x0059, 0x0059, 0x0059, 0x0059} }; |
40 | static mmx_t MMX_UgrnRGB = { .uw = {0xffea, 0xffea, 0xffea, 0xffea} }; |
41 | static mmx_t MMX_VgrnRGB = { .uw = {0xffd2, 0xffd2, 0xffd2, 0xffd2} }; |
42 | |
43 | static mmx_t MMX_Ublu5x5 = { .uw = {0x0081, 0x0081, 0x0081, 0x0081} }; |
44 | static mmx_t MMX_Vred5x5 = { .uw = {0x0066, 0x0066, 0x0066, 0x0066} }; |
45 | static mmx_t MMX_Ugrn565 = { .uw = {0xffe8, 0xffe8, 0xffe8, 0xffe8} }; |
46 | static mmx_t MMX_Vgrn565 = { .uw = {0xffcd, 0xffcd, 0xffcd, 0xffcd} }; |
47 | |
48 | static mmx_t MMX_red565 = { .uw = {0xf800, 0xf800, 0xf800, 0xf800} }; |
49 | static mmx_t MMX_grn565 = { .uw = {0x07e0, 0x07e0, 0x07e0, 0x07e0} }; |
50 | |
51 | /** |
52 | This MMX assembler is my first assembler/MMX program ever. |
53 | Thus it maybe buggy. |
54 | Send patches to: |
55 | mvogt@rhrk.uni-kl.de |
56 | |
57 | After it worked fine I have "obfuscated" the code a bit to have |
58 | more parallism in the MMX units. This means I moved |
59 | initilisation around and delayed other instruction. |
60 | Performance measurement did not show that this brought any advantage |
61 | but in theory it _should_ be faster this way. |
62 | |
63 | The overall performanve gain to the C based dither was 30%-40%. |
64 | The MMX routine calculates 256bit=8RGB values in each cycle |
65 | (4 for row1 & 4 for row2) |
66 | |
67 | The red/green/blue.. coefficents are taken from the mpeg_play |
68 | player. They look nice, but I dont know if you can have |
69 | better values, to avoid integer rounding errors. |
70 | |
71 | |
72 | IMPORTANT: |
73 | ========== |
74 | |
75 | It is a requirement that the cr/cb/lum are 8 byte aligned and |
76 | the out are 16byte aligned or you will/may get segfaults |
77 | |
78 | */ |
79 | |
80 | void ColorRGBDitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, |
81 | unsigned char *lum, unsigned char *cr, |
82 | unsigned char *cb, unsigned char *out, |
83 | int rows, int cols, int mod ) |
84 | { |
85 | Uint32 *row1; |
86 | Uint32 *row2; |
87 | |
88 | unsigned char* y = lum +cols*rows; // Pointer to the end |
89 | int x = 0; |
90 | row1 = (Uint32 *)out; // 32 bit target |
91 | row2 = (Uint32 *)out+cols+mod; // start of second row |
92 | mod = (mod+cols+mod)*4; // increment for row1 in byte |
93 | |
94 | __asm__ __volatile__ ( |
95 | // tap dance to workaround the inability to use %%ebx at will... |
96 | // move one thing to the stack... |
97 | "pushl $0\n" // save a slot on the stack. |
98 | "pushl %%ebx\n" // save %%ebx. |
99 | "movl %0, %%ebx\n" // put the thing in ebx. |
100 | "movl %%ebx,4(%%esp)\n" // put the thing in the stack slot. |
101 | "popl %%ebx\n" // get back %%ebx (the PIC register). |
102 | |
103 | ".align 8\n" |
104 | "1:\n" |
105 | |
106 | // create Cr (result in mm1) |
107 | "pushl %%ebx\n" |
108 | "movl 4(%%esp),%%ebx\n" |
109 | "movd (%%ebx),%%mm1\n" // 0 0 0 0 v3 v2 v1 v0 |
110 | "popl %%ebx\n" |
111 | "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 |
112 | "movd (%2), %%mm2\n" // 0 0 0 0 l3 l2 l1 l0 |
113 | "punpcklbw %%mm7,%%mm1\n" // 0 v3 0 v2 00 v1 00 v0 |
114 | "punpckldq %%mm1,%%mm1\n" // 00 v1 00 v0 00 v1 00 v0 |
115 | "psubw %9,%%mm1\n" // mm1-128:r1 r1 r0 r0 r1 r1 r0 r0 |
116 | |
117 | // create Cr_g (result in mm0) |
118 | "movq %%mm1,%%mm0\n" // r1 r1 r0 r0 r1 r1 r0 r0 |
119 | "pmullw %10,%%mm0\n" // red*-46dec=0.7136*64 |
120 | "pmullw %11,%%mm1\n" // red*89dec=1.4013*64 |
121 | "psraw $6, %%mm0\n" // red=red/64 |
122 | "psraw $6, %%mm1\n" // red=red/64 |
123 | |
124 | // create L1 L2 (result in mm2,mm4) |
125 | // L2=lum+cols |
126 | "movq (%2,%4),%%mm3\n" // 0 0 0 0 L3 L2 L1 L0 |
127 | "punpckldq %%mm3,%%mm2\n" // L3 L2 L1 L0 l3 l2 l1 l0 |
128 | "movq %%mm2,%%mm4\n" // L3 L2 L1 L0 l3 l2 l1 l0 |
129 | "pand %12,%%mm2\n" // L3 0 L1 0 l3 0 l1 0 |
130 | "pand %13,%%mm4\n" // 0 L2 0 L0 0 l2 0 l0 |
131 | "psrlw $8,%%mm2\n" // 0 L3 0 L1 0 l3 0 l1 |
132 | |
133 | // create R (result in mm6) |
134 | "movq %%mm2,%%mm5\n" // 0 L3 0 L1 0 l3 0 l1 |
135 | "movq %%mm4,%%mm6\n" // 0 L2 0 L0 0 l2 0 l0 |
136 | "paddsw %%mm1, %%mm5\n" // lum1+red:x R3 x R1 x r3 x r1 |
137 | "paddsw %%mm1, %%mm6\n" // lum1+red:x R2 x R0 x r2 x r0 |
138 | "packuswb %%mm5,%%mm5\n" // R3 R1 r3 r1 R3 R1 r3 r1 |
139 | "packuswb %%mm6,%%mm6\n" // R2 R0 r2 r0 R2 R0 r2 r0 |
140 | "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 |
141 | "punpcklbw %%mm5,%%mm6\n" // R3 R2 R1 R0 r3 r2 r1 r0 |
142 | |
143 | // create Cb (result in mm1) |
144 | "movd (%1), %%mm1\n" // 0 0 0 0 u3 u2 u1 u0 |
145 | "punpcklbw %%mm7,%%mm1\n" // 0 u3 0 u2 00 u1 00 u0 |
146 | "punpckldq %%mm1,%%mm1\n" // 00 u1 00 u0 00 u1 00 u0 |
147 | "psubw %9,%%mm1\n" // mm1-128:u1 u1 u0 u0 u1 u1 u0 u0 |
148 | // create Cb_g (result in mm5) |
149 | "movq %%mm1,%%mm5\n" // u1 u1 u0 u0 u1 u1 u0 u0 |
150 | "pmullw %14,%%mm5\n" // blue*-109dec=1.7129*64 |
151 | "pmullw %15,%%mm1\n" // blue*114dec=1.78125*64 |
152 | "psraw $6, %%mm5\n" // blue=red/64 |
153 | "psraw $6, %%mm1\n" // blue=blue/64 |
154 | |
155 | // create G (result in mm7) |
156 | "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 |
157 | "movq %%mm4,%%mm7\n" // 0 L2 0 L0 0 l2 0 l1 |
158 | "paddsw %%mm5, %%mm3\n" // lum1+Cb_g:x G3t x G1t x g3t x g1t |
159 | "paddsw %%mm5, %%mm7\n" // lum1+Cb_g:x G2t x G0t x g2t x g0t |
160 | "paddsw %%mm0, %%mm3\n" // lum1+Cr_g:x G3 x G1 x g3 x g1 |
161 | "paddsw %%mm0, %%mm7\n" // lum1+blue:x G2 x G0 x g2 x g0 |
162 | "packuswb %%mm3,%%mm3\n" // G3 G1 g3 g1 G3 G1 g3 g1 |
163 | "packuswb %%mm7,%%mm7\n" // G2 G0 g2 g0 G2 G0 g2 g0 |
164 | "punpcklbw %%mm3,%%mm7\n" // G3 G2 G1 G0 g3 g2 g1 g0 |
165 | |
166 | // create B (result in mm5) |
167 | "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 |
168 | "movq %%mm4,%%mm5\n" // 0 L2 0 L0 0 l2 0 l1 |
169 | "paddsw %%mm1, %%mm3\n" // lum1+blue:x B3 x B1 x b3 x b1 |
170 | "paddsw %%mm1, %%mm5\n" // lum1+blue:x B2 x B0 x b2 x b0 |
171 | "packuswb %%mm3,%%mm3\n" // B3 B1 b3 b1 B3 B1 b3 b1 |
172 | "packuswb %%mm5,%%mm5\n" // B2 B0 b2 b0 B2 B0 b2 b0 |
173 | "punpcklbw %%mm3,%%mm5\n" // B3 B2 B1 B0 b3 b2 b1 b0 |
174 | |
175 | // fill destination row1 (needed are mm6=Rr,mm7=Gg,mm5=Bb) |
176 | |
177 | "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 |
178 | "pxor %%mm4,%%mm4\n" // 0 0 0 0 0 0 0 0 |
179 | "movq %%mm6,%%mm1\n" // R3 R2 R1 R0 r3 r2 r1 r0 |
180 | "movq %%mm5,%%mm3\n" // B3 B2 B1 B0 b3 b2 b1 b0 |
181 | // process lower lum |
182 | "punpcklbw %%mm4,%%mm1\n" // 0 r3 0 r2 0 r1 0 r0 |
183 | "punpcklbw %%mm4,%%mm3\n" // 0 b3 0 b2 0 b1 0 b0 |
184 | "movq %%mm1,%%mm2\n" // 0 r3 0 r2 0 r1 0 r0 |
185 | "movq %%mm3,%%mm0\n" // 0 b3 0 b2 0 b1 0 b0 |
186 | "punpcklwd %%mm1,%%mm3\n" // 0 r1 0 b1 0 r0 0 b0 |
187 | "punpckhwd %%mm2,%%mm0\n" // 0 r3 0 b3 0 r2 0 b2 |
188 | |
189 | "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 |
190 | "movq %%mm7,%%mm1\n" // G3 G2 G1 G0 g3 g2 g1 g0 |
191 | "punpcklbw %%mm1,%%mm2\n" // g3 0 g2 0 g1 0 g0 0 |
192 | "punpcklwd %%mm4,%%mm2\n" // 0 0 g1 0 0 0 g0 0 |
193 | "por %%mm3, %%mm2\n" // 0 r1 g1 b1 0 r0 g0 b0 |
194 | "movq %%mm2,(%3)\n" // wrote out ! row1 |
195 | |
196 | "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 |
197 | "punpcklbw %%mm1,%%mm4\n" // g3 0 g2 0 g1 0 g0 0 |
198 | "punpckhwd %%mm2,%%mm4\n" // 0 0 g3 0 0 0 g2 0 |
199 | "por %%mm0, %%mm4\n" // 0 r3 g3 b3 0 r2 g2 b2 |
200 | "movq %%mm4,8(%3)\n" // wrote out ! row1 |
201 | |
202 | // fill destination row2 (needed are mm6=Rr,mm7=Gg,mm5=Bb) |
203 | // this can be done "destructive" |
204 | "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 |
205 | "punpckhbw %%mm2,%%mm6\n" // 0 R3 0 R2 0 R1 0 R0 |
206 | "punpckhbw %%mm1,%%mm5\n" // G3 B3 G2 B2 G1 B1 G0 B0 |
207 | "movq %%mm5,%%mm1\n" // G3 B3 G2 B2 G1 B1 G0 B0 |
208 | "punpcklwd %%mm6,%%mm1\n" // 0 R1 G1 B1 0 R0 G0 B0 |
209 | "movq %%mm1,(%5)\n" // wrote out ! row2 |
210 | "punpckhwd %%mm6,%%mm5\n" // 0 R3 G3 B3 0 R2 G2 B2 |
211 | "movq %%mm5,8(%5)\n" // wrote out ! row2 |
212 | |
213 | "addl $4,%2\n" // lum+4 |
214 | "leal 16(%3),%3\n" // row1+16 |
215 | "leal 16(%5),%5\n" // row2+16 |
216 | "addl $2,(%%esp)\n" // cr+2 |
217 | "addl $2,%1\n" // cb+2 |
218 | |
219 | "addl $4,%6\n" // x+4 |
220 | "cmpl %4,%6\n" |
221 | |
222 | "jl 1b\n" |
223 | "addl %4,%2\n" // lum += cols |
224 | "addl %8,%3\n" // row1+= mod |
225 | "addl %8,%5\n" // row2+= mod |
226 | "movl $0,%6\n" // x=0 |
227 | "cmpl %7,%2\n" |
228 | "jl 1b\n" |
229 | |
230 | "addl $4,%%esp\n" // get rid of the stack slot we reserved. |
231 | "emms\n" // reset MMX registers. |
232 | : |
233 | : "m" (cr), "r"(cb),"r"(lum), |
234 | "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod), |
235 | "m"(MMX_0080w),"m"(MMX_VgrnRGB),"m"(MMX_VredRGB), |
236 | "m"(MMX_FF00w),"m"(MMX_00FFw),"m"(MMX_UgrnRGB), |
237 | "m"(MMX_UbluRGB) |
238 | ); |
239 | } |
240 | |
241 | void Color565DitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, |
242 | unsigned char *lum, unsigned char *cr, |
243 | unsigned char *cb, unsigned char *out, |
244 | int rows, int cols, int mod ) |
245 | { |
246 | Uint16 *row1; |
247 | Uint16 *row2; |
248 | |
249 | unsigned char* y = lum +cols*rows; /* Pointer to the end */ |
250 | int x = 0; |
251 | row1 = (Uint16 *)out; /* 16 bit target */ |
252 | row2 = (Uint16 *)out+cols+mod; /* start of second row */ |
253 | mod = (mod+cols+mod)*2; /* increment for row1 in byte */ |
254 | |
255 | __asm__ __volatile__( |
256 | // tap dance to workaround the inability to use %%ebx at will... |
257 | // move one thing to the stack... |
258 | "pushl $0\n" // save a slot on the stack. |
259 | "pushl %%ebx\n" // save %%ebx. |
260 | "movl %0, %%ebx\n" // put the thing in ebx. |
261 | "movl %%ebx, 4(%%esp)\n" // put the thing in the stack slot. |
262 | "popl %%ebx\n" // get back %%ebx (the PIC register). |
263 | |
264 | ".align 8\n" |
265 | "1:\n" |
266 | "movd (%1), %%mm0\n" // 4 Cb 0 0 0 0 u3 u2 u1 u0 |
267 | "pxor %%mm7, %%mm7\n" |
268 | "pushl %%ebx\n" |
269 | "movl 4(%%esp), %%ebx\n" |
270 | "movd (%%ebx), %%mm1\n" // 4 Cr 0 0 0 0 v3 v2 v1 v0 |
271 | "popl %%ebx\n" |
272 | |
273 | "punpcklbw %%mm7, %%mm0\n" // 4 W cb 0 u3 0 u2 0 u1 0 u0 |
274 | "punpcklbw %%mm7, %%mm1\n" // 4 W cr 0 v3 0 v2 0 v1 0 v0 |
275 | "psubw %9, %%mm0\n" |
276 | "psubw %9, %%mm1\n" |
277 | "movq %%mm0, %%mm2\n" // Cb 0 u3 0 u2 0 u1 0 u0 |
278 | "movq %%mm1, %%mm3\n" // Cr |
279 | "pmullw %10, %%mm2\n" // Cb2green 0 R3 0 R2 0 R1 0 R0 |
280 | "movq (%2), %%mm6\n" // L1 l7 L6 L5 L4 L3 L2 L1 L0 |
281 | "pmullw %11, %%mm0\n" // Cb2blue |
282 | "pand %12, %%mm6\n" // L1 00 L6 00 L4 00 L2 00 L0 |
283 | "pmullw %13, %%mm3\n" // Cr2green |
284 | "movq (%2), %%mm7\n" // L2 |
285 | "pmullw %14, %%mm1\n" // Cr2red |
286 | "psrlw $8, %%mm7\n" // L2 00 L7 00 L5 00 L3 00 L1 |
287 | "pmullw %15, %%mm6\n" // lum1 |
288 | "paddw %%mm3, %%mm2\n" // Cb2green + Cr2green == green |
289 | "pmullw %15, %%mm7\n" // lum2 |
290 | |
291 | "movq %%mm6, %%mm4\n" // lum1 |
292 | "paddw %%mm0, %%mm6\n" // lum1 +blue 00 B6 00 B4 00 B2 00 B0 |
293 | "movq %%mm4, %%mm5\n" // lum1 |
294 | "paddw %%mm1, %%mm4\n" // lum1 +red 00 R6 00 R4 00 R2 00 R0 |
295 | "paddw %%mm2, %%mm5\n" // lum1 +green 00 G6 00 G4 00 G2 00 G0 |
296 | "psraw $6, %%mm4\n" // R1 0 .. 64 |
297 | "movq %%mm7, %%mm3\n" // lum2 00 L7 00 L5 00 L3 00 L1 |
298 | "psraw $6, %%mm5\n" // G1 - .. + |
299 | "paddw %%mm0, %%mm7\n" // Lum2 +blue 00 B7 00 B5 00 B3 00 B1 |
300 | "psraw $6, %%mm6\n" // B1 0 .. 64 |
301 | "packuswb %%mm4, %%mm4\n" // R1 R1 |
302 | "packuswb %%mm5, %%mm5\n" // G1 G1 |
303 | "packuswb %%mm6, %%mm6\n" // B1 B1 |
304 | "punpcklbw %%mm4, %%mm4\n" |
305 | "punpcklbw %%mm5, %%mm5\n" |
306 | |
307 | "pand %16, %%mm4\n" |
308 | "psllw $3, %%mm5\n" // GREEN 1 |
309 | "punpcklbw %%mm6, %%mm6\n" |
310 | "pand %17, %%mm5\n" |
311 | "pand %16, %%mm6\n" |
312 | "por %%mm5, %%mm4\n" // |
313 | "psrlw $11, %%mm6\n" // BLUE 1 |
314 | "movq %%mm3, %%mm5\n" // lum2 |
315 | "paddw %%mm1, %%mm3\n" // lum2 +red 00 R7 00 R5 00 R3 00 R1 |
316 | "paddw %%mm2, %%mm5\n" // lum2 +green 00 G7 00 G5 00 G3 00 G1 |
317 | "psraw $6, %%mm3\n" // R2 |
318 | "por %%mm6, %%mm4\n" // MM4 |
319 | "psraw $6, %%mm5\n" // G2 |
320 | "movq (%2, %4), %%mm6\n" // L3 load lum2 |
321 | "psraw $6, %%mm7\n" |
322 | "packuswb %%mm3, %%mm3\n" |
323 | "packuswb %%mm5, %%mm5\n" |
324 | "packuswb %%mm7, %%mm7\n" |
325 | "pand %12, %%mm6\n" // L3 |
326 | "punpcklbw %%mm3, %%mm3\n" |
327 | "punpcklbw %%mm5, %%mm5\n" |
328 | "pmullw %15, %%mm6\n" // lum3 |
329 | "punpcklbw %%mm7, %%mm7\n" |
330 | "psllw $3, %%mm5\n" // GREEN 2 |
331 | "pand %16, %%mm7\n" |
332 | "pand %16, %%mm3\n" |
333 | "psrlw $11, %%mm7\n" // BLUE 2 |
334 | "pand %17, %%mm5\n" |
335 | "por %%mm7, %%mm3\n" |
336 | "movq (%2,%4), %%mm7\n" // L4 load lum2 |
337 | "por %%mm5, %%mm3\n" // |
338 | "psrlw $8, %%mm7\n" // L4 |
339 | "movq %%mm4, %%mm5\n" |
340 | "punpcklwd %%mm3, %%mm4\n" |
341 | "pmullw %15, %%mm7\n" // lum4 |
342 | "punpckhwd %%mm3, %%mm5\n" |
343 | |
344 | "movq %%mm4, (%3)\n" // write row1 |
345 | "movq %%mm5, 8(%3)\n" // write row1 |
346 | |
347 | "movq %%mm6, %%mm4\n" // Lum3 |
348 | "paddw %%mm0, %%mm6\n" // Lum3 +blue |
349 | |
350 | "movq %%mm4, %%mm5\n" // Lum3 |
351 | "paddw %%mm1, %%mm4\n" // Lum3 +red |
352 | "paddw %%mm2, %%mm5\n" // Lum3 +green |
353 | "psraw $6, %%mm4\n" |
354 | "movq %%mm7, %%mm3\n" // Lum4 |
355 | "psraw $6, %%mm5\n" |
356 | "paddw %%mm0, %%mm7\n" // Lum4 +blue |
357 | "psraw $6, %%mm6\n" // Lum3 +blue |
358 | "movq %%mm3, %%mm0\n" // Lum4 |
359 | "packuswb %%mm4, %%mm4\n" |
360 | "paddw %%mm1, %%mm3\n" // Lum4 +red |
361 | "packuswb %%mm5, %%mm5\n" |
362 | "paddw %%mm2, %%mm0\n" // Lum4 +green |
363 | "packuswb %%mm6, %%mm6\n" |
364 | "punpcklbw %%mm4, %%mm4\n" |
365 | "punpcklbw %%mm5, %%mm5\n" |
366 | "punpcklbw %%mm6, %%mm6\n" |
367 | "psllw $3, %%mm5\n" // GREEN 3 |
368 | "pand %16, %%mm4\n" |
369 | "psraw $6, %%mm3\n" // psr 6 |
370 | "psraw $6, %%mm0\n" |
371 | "pand %16, %%mm6\n" // BLUE |
372 | "pand %17, %%mm5\n" |
373 | "psrlw $11, %%mm6\n" // BLUE 3 |
374 | "por %%mm5, %%mm4\n" |
375 | "psraw $6, %%mm7\n" |
376 | "por %%mm6, %%mm4\n" |
377 | "packuswb %%mm3, %%mm3\n" |
378 | "packuswb %%mm0, %%mm0\n" |
379 | "packuswb %%mm7, %%mm7\n" |
380 | "punpcklbw %%mm3, %%mm3\n" |
381 | "punpcklbw %%mm0, %%mm0\n" |
382 | "punpcklbw %%mm7, %%mm7\n" |
383 | "pand %16, %%mm3\n" |
384 | "pand %16, %%mm7\n" // BLUE |
385 | "psllw $3, %%mm0\n" // GREEN 4 |
386 | "psrlw $11, %%mm7\n" |
387 | "pand %17, %%mm0\n" |
388 | "por %%mm7, %%mm3\n" |
389 | "por %%mm0, %%mm3\n" |
390 | |
391 | "movq %%mm4, %%mm5\n" |
392 | |
393 | "punpcklwd %%mm3, %%mm4\n" |
394 | "punpckhwd %%mm3, %%mm5\n" |
395 | |
396 | "movq %%mm4, (%5)\n" |
397 | "movq %%mm5, 8(%5)\n" |
398 | |
399 | "addl $8, %6\n" |
400 | "addl $8, %2\n" |
401 | "addl $4, (%%esp)\n" |
402 | "addl $4, %1\n" |
403 | "cmpl %4, %6\n" |
404 | "leal 16(%3), %3\n" |
405 | "leal 16(%5),%5\n" // row2+16 |
406 | |
407 | "jl 1b\n" |
408 | "addl %4, %2\n" // lum += cols |
409 | "addl %8, %3\n" // row1+= mod |
410 | "addl %8, %5\n" // row2+= mod |
411 | "movl $0, %6\n" // x=0 |
412 | "cmpl %7, %2\n" |
413 | "jl 1b\n" |
414 | "addl $4, %%esp\n" // get rid of the stack slot we reserved. |
415 | "emms\n" |
416 | : |
417 | : "m" (cr), "r"(cb),"r"(lum), |
418 | "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod), |
419 | "m"(MMX_0080w),"m"(MMX_Ugrn565),"m"(MMX_Ublu5x5), |
420 | "m"(MMX_00FFw),"m"(MMX_Vgrn565),"m"(MMX_Vred5x5), |
421 | "m"(MMX_Ycoeff),"m"(MMX_red565),"m"(MMX_grn565) |
422 | ); |
423 | } |
424 | |
425 | /* *INDENT-ON* */ |
426 | |
427 | #endif /* GCC3 i386 inline assembly */ |
428 | |