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SDL-1.2.14
[sdl_omap.git] / src / video / SDL_yuv_mmx.c
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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
32static mmx_t MMX_0080w = { .ud = {0x00800080, 0x00800080} };
33static mmx_t MMX_00FFw = { .ud = {0x00ff00ff, 0x00ff00ff} };
34static mmx_t MMX_FF00w = { .ud = {0xff00ff00, 0xff00ff00} };
35
36static mmx_t MMX_Ycoeff = { .uw = {0x004a, 0x004a, 0x004a, 0x004a} };
37
38static mmx_t MMX_UbluRGB = { .uw = {0x0072, 0x0072, 0x0072, 0x0072} };
39static mmx_t MMX_VredRGB = { .uw = {0x0059, 0x0059, 0x0059, 0x0059} };
40static mmx_t MMX_UgrnRGB = { .uw = {0xffea, 0xffea, 0xffea, 0xffea} };
41static mmx_t MMX_VgrnRGB = { .uw = {0xffd2, 0xffd2, 0xffd2, 0xffd2} };
42
43static mmx_t MMX_Ublu5x5 = { .uw = {0x0081, 0x0081, 0x0081, 0x0081} };
44static mmx_t MMX_Vred5x5 = { .uw = {0x0066, 0x0066, 0x0066, 0x0066} };
45static mmx_t MMX_Ugrn565 = { .uw = {0xffe8, 0xffe8, 0xffe8, 0xffe8} };
46static mmx_t MMX_Vgrn565 = { .uw = {0xffcd, 0xffcd, 0xffcd, 0xffcd} };
47
48static mmx_t MMX_red565 = { .uw = {0xf800, 0xf800, 0xf800, 0xf800} };
49static 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
80void 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
241void 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
SDL with some OMAP hardware support