libvo/vo_tdfxfb.c

   1 /*
   2  * copyright (C) 2002 Mark Zealey <mark@zealos.org>
   3  *
   4  * This file is part of MPlayer.
   5  *
   6  * MPlayer is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * MPlayer is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 /*
  22  * 30/03/02: An almost total rewrite, added DR support and support for modes
  23  * other than 16bpp. Fixed the crash when playing multiple files
  24  * 07/04/02: Fixed DR support, added YUY2 support, fixed OSD stuff.
  25  * 08/04/02: Fixed a wierd sound corruption problem caused by some optomizations
  26  * I made.
  27  * 09/04/02: Fixed a problem with changing the variables passed to draw_slice().
  28  * Fixed DR support for YV12 et al. Added BGR support. Removed lots of dud code.
  29  * 10/04/02: Changed the memcpy functions to mem2agpcpy.. should be a tad
  30  * faster.
  31  * 11/04/02: Added a compile option so you can watch the film with the console
  32  * as the background, or not.
  33  * 13/04/02: Fix rough OSD stuff by rendering it straight onto the output
  34  * buffer. Added double-buffering. Supports hardware zoom/reduce zoom modes.
  35  * 13/04/02: Misc cleanups of the code.
  36  * 22/10/02: Added geometry support to it
  37  *
  38  * Hints and tricks:
  39  * - Use -dr to get direct rendering
  40  * - Use -vf yuy2 to get yuy2 rendering, *MUCH* faster than yv12
  41  * - To get a black background and nice smooth OSD, use -double
  42  * - To get the console as a background, but with scaled OSD, use -nodouble
  43  * - The driver supports both scaling and shrinking the image using the -x and
  44  *   -y options on the mplayer commandline. Also repositioning via the -geometry
  45  *   option.
  46  */
  47
  48 #include <stdio.h>
  49 #include <stdlib.h>
  50 #include <errno.h>
  51 #include <string.h>
  52 #include <unistd.h>
  53 #include <sys/ioctl.h>
  54 #include <fcntl.h>
  55 #include <sys/mman.h>
  56 #include <linux/fb.h>
  57
  58 #include "config.h"
  59 #include "mp_msg.h"
  60 #include "help_mp.h"
  61 #include "fastmemcpy.h"
  62 #include "video_out.h"
  63 #include "video_out_internal.h"
  64 #include "drivers/3dfx.h"
  65 #include "aspect.h"
  66 #include "sub.h"
  67
  68 static const vo_info_t info =
  69 {
  70         "3Dfx Banshee/Voodoo3/Voodoo5",
  71         "tdfxfb",
  72         "Mark Zealey <mark@zealos.org>",
  73         ""
  74 };
  75
  76 const LIBVO_EXTERN(tdfxfb)
  77
  78 /* Some registers on the card */
  79 #define S2S_STRECH_BLT          2                       // BLT + Strech
  80 #define S2S_IMMED               (1 << 8)                // Do it immediatly
  81 #define S2S_ROP                 (0xCC << 24)            // ???
  82
  83 /* Stepping between the different YUV plane registers */
  84 #define YUV_STRIDE 1024
  85 struct YUV_plane {
  86   char Y[0x0100000];
  87   char U[0x0100000];
  88   char V[0x0100000];
  89 };
  90
  91 static int fd = -1;
  92 static struct fb_fix_screeninfo fb_finfo;
  93 static struct fb_var_screeninfo fb_vinfo;
  94 static uint32_t in_width, in_height, in_format, in_depth, in_voodoo_format,
  95         screenwidth, screenheight, screendepth, vidwidth, vidheight, vidx, vidy,
  96         vid_voodoo_format, *vidpage, *hidpage, *inpage, vidpageoffset,
  97         hidpageoffset, inpageoffset, *memBase0 = NULL, *memBase1 = NULL, r_width, r_height;
  98 static volatile voodoo_io_reg *reg_IO;
  99 static volatile voodoo_2d_reg *reg_2d;
 100 static voodoo_yuv_reg *reg_YUV;
 101 static struct YUV_plane *YUV;
 102 static void (*alpha_func)(), (*alpha_func_double)();
 103
 104 static int preinit(const char *arg)
 105 {
 106         char *name;
 107
 108         if(arg)
 109           name = (char*)arg;
 110         else if(!(name = getenv("FRAMEBUFFER")))
 111                 name = "/dev/fb0";
 112
 113         if((fd = open(name, O_RDWR)) == -1) {
 114                 mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_TDFXFB_CantOpen, name, strerror(errno));
 115                 return -1;
 116         }
 117
 118         if(ioctl(fd, FBIOGET_FSCREENINFO, &fb_finfo)) {
 119                 mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_TDFXFB_ProblemWithFbitgetFscreenInfo,
 120                                 strerror(errno));
 121                 close(fd);
 122                 fd = -1;
 123                 return -1;
 124         }
 125
 126         if(ioctl(fd, FBIOGET_VSCREENINFO, &fb_vinfo)) {
 127                 mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_TDFXFB_ProblemWithFbitgetVscreenInfo,
 128                                 strerror(errno));
 129                 close(fd);
 130                 fd = -1;
 131                 return -1;
 132         }
 133
 134         /* BANSHEE means any of the series aparently */
 135         if (fb_finfo.accel != FB_ACCEL_3DFX_BANSHEE) {
 136                 mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_TDFXFB_ThisDriverOnlySupports);
 137                 close(fd);
 138                 fd = -1;
 139                 return -1;
 140         }
 141
 142         // Check the depth now as config() musn't fail
 143         switch(fb_vinfo.bits_per_pixel) {
 144         case 16:
 145         case 24:
 146         case 32:
 147           break; // Ok
 148         default:
 149           mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_TDFXFB_OutputIsNotSupported, fb_vinfo.bits_per_pixel);
 150           close(fd);
 151           fd = -1;
 152           return -1;
 153         }
 154
 155         /* Open up a window to the hardware */
 156         memBase1 = mmap(0, fb_finfo.smem_len, PROT_READ | PROT_WRITE,
 157                                         MAP_SHARED, fd, 0);
 158         memBase0 = mmap(0, fb_finfo.mmio_len, PROT_READ | PROT_WRITE,
 159                                         MAP_SHARED, fd, fb_finfo.smem_len);
 160
 161         if((long)memBase0 == -1 || (long)memBase1 == -1) {
 162                 mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_TDFXFB_CouldntMapMemoryAreas, strerror(errno));
 163                 if((long)memBase0 != -1)
 164                   munmap(memBase0, fb_finfo.smem_len);
 165                 if((long)memBase1 != -1)
 166                   munmap(memBase1, fb_finfo.smem_len);
 167                 memBase0 = memBase1 = NULL;
 168                 return -1;
 169         }
 170
 171         /* Set up global pointers to the voodoo's regs */
 172         reg_IO = (void *)memBase0 + VOODOO_IO_REG_OFFSET;
 173         reg_2d = (void *)memBase0 + VOODOO_2D_REG_OFFSET;
 174         reg_YUV = (void *)memBase0 + VOODOO_YUV_REG_OFFSET;
 175         YUV = (void *)memBase0 + VOODOO_YUV_PLANE_OFFSET;
 176
 177         return 0;
 178 }
 179
 180 static void uninit(void)
 181 {
 182         if(reg_IO) {
 183                 /* Restore the screen (Linux lives at 0) */
 184                 reg_IO->vidDesktopStartAddr = 0;
 185                 reg_IO = NULL;
 186         }
 187
 188         /* And close our mess */
 189         if(memBase1) {
 190                 munmap(memBase1, fb_finfo.smem_len);
 191                 memBase1 = NULL;
 192         }
 193
 194         if(memBase0) {
 195                 munmap(memBase0, fb_finfo.mmio_len);
 196                 memBase0 = NULL;
 197         }
 198
 199         if(fd != -1) {
 200                 close(fd);
 201                 fd = -1;
 202         }
 203 }
 204
 205 static void clear_screen(void)
 206 {
 207         /* There needs to be some sort of delay here or else things seriously
 208          * screw up.  Causes the image to not be the right size on screen if
 209          * this isn't like this.  A printf before the memset call also seems to
 210          * work, but this made more sense since it actually checks the status of
 211          * the card.
 212          */
 213         if(vo_doublebuffering) {
 214                 /* first wait for the card to be ready, do not try to write
 215                  * every time - alex */
 216                 do {} while((reg_IO->status & 0x1f) < 1);
 217                 memset(vidpage, 0, screenwidth * screenheight * screendepth);
 218                 memset(hidpage, 0, screenwidth * screenheight * screendepth);
 219         }
 220 }
 221
 222 /* Setup output screen dimensions etc */
 223 static void setup_screen(uint32_t full)
 224 {
 225         aspect(&vidwidth, &vidheight, full ? A_ZOOM : A_NOZOOM);
 226
 227         geometry(&vidx, &vidy, &vidwidth, &vidheight, screenwidth, screenheight);
 228         vo_fs = full;
 229         clear_screen();
 230 }
 231
 232 static int config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height,
 233                 uint32_t flags, char *title, uint32_t format)
 234 {
 235         screenwidth = fb_vinfo.xres;
 236         screenheight = fb_vinfo.yres;
 237         aspect_save_screenres(fb_vinfo.xres,fb_vinfo.yres);
 238
 239         in_width = width;
 240         in_height = height;
 241         in_format = format;
 242         aspect_save_orig(width,height);
 243
 244         r_width = d_width;
 245         r_height = d_height;
 246         aspect_save_prescale(d_width,d_height);
 247
 248         /* Setup the screen for rendering to */
 249         switch(fb_vinfo.bits_per_pixel) {
 250         case 16:
 251                 screendepth = 2;
 252                 vid_voodoo_format = VOODOO_BLT_FORMAT_16;
 253                 alpha_func_double = vo_draw_alpha_rgb16;
 254                 break;
 255
 256         case 24:
 257                 screendepth = 3;
 258                 vid_voodoo_format = VOODOO_BLT_FORMAT_24;
 259                 alpha_func_double = vo_draw_alpha_rgb24;
 260                 break;
 261
 262         case 32:
 263                 screendepth = 4;
 264                 vid_voodoo_format = VOODOO_BLT_FORMAT_32;
 265                 alpha_func_double = vo_draw_alpha_rgb32;
 266                 break;
 267
 268         default:
 269                 mp_msg(MSGT_VO, MSGL_ERR, MSGTR_LIBVO_TDFXFB_BppOutputIsNotSupported, fb_vinfo.bits_per_pixel);
 270                 return -1;
 271         }
 272
 273         vid_voodoo_format |= screenwidth * screendepth;
 274
 275         /* Some defaults here */
 276         in_voodoo_format = VOODOO_BLT_FORMAT_YUYV;
 277         in_depth = 2;
 278         alpha_func = vo_draw_alpha_yuy2;
 279
 280         switch(in_format) {
 281         case IMGFMT_YV12:
 282         case IMGFMT_I420:
 283         case IMGFMT_IYUV:
 284         case IMGFMT_YUY2:
 285                 break;
 286         case IMGFMT_UYVY:
 287                 in_voodoo_format = VOODOO_BLT_FORMAT_UYVY;
 288                 break;
 289         case IMGFMT_BGR16:
 290                 in_voodoo_format = VOODOO_BLT_FORMAT_16;
 291                 alpha_func = vo_draw_alpha_rgb16;
 292                 break;
 293
 294         case IMGFMT_BGR24:
 295                 in_depth = 3;
 296                 in_voodoo_format = VOODOO_BLT_FORMAT_24;
 297                 alpha_func = vo_draw_alpha_rgb24;
 298                 break;
 299
 300         case IMGFMT_BGR32:
 301                 in_depth = 4;
 302                 in_voodoo_format = VOODOO_BLT_FORMAT_32;
 303                 alpha_func = vo_draw_alpha_rgb32;
 304                 break;
 305
 306         default:
 307                 mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_TDFXFB_SomethingIsWrongWithControl);
 308                 return -1;
 309         }
 310
 311         in_voodoo_format |= in_width * in_depth;
 312
 313         /* Linux lives in the first frame */
 314         if(vo_doublebuffering) {
 315                 vidpageoffset = screenwidth * screenheight * screendepth;
 316                 hidpageoffset = vidpageoffset + screenwidth * screenheight * screendepth;
 317         } else
 318                 vidpageoffset = hidpageoffset = 0;              /* Console background */
 319
 320
 321         inpageoffset = hidpageoffset + screenwidth * screenheight * screendepth;
 322
 323         if(inpageoffset + in_width * in_depth * in_height > fb_finfo.smem_len) {
 324                 mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_TDFXFB_NotEnoughVideoMemoryToPlay);
 325                 return -1;
 326         }
 327
 328         vidpage = (void *)memBase1 + (unsigned long)vidpageoffset;
 329         hidpage = (void *)memBase1 + (unsigned long)hidpageoffset;
 330         inpage = (void *)memBase1 + (unsigned long)inpageoffset;
 331
 332         setup_screen(flags & VOFLAG_FULLSCREEN);
 333
 334         memset(inpage, 0, in_width * in_height * in_depth);
 335
 336         mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_TDFXFB_ScreenIs,
 337                         screenwidth, screenheight, screendepth * 8,
 338                         in_width, in_height, in_depth * 8,
 339                         d_width, d_height);
 340
 341         return 0;
 342 }
 343
 344 /* Double-buffering draw_alpha */
 345 static void draw_alpha_double(int x, int y, int w, int h, unsigned char *src,
 346                 unsigned char *srca, int stride)
 347 {
 348         char *dst = (char *)vidpage + ((y + vidy) * screenwidth + x + vidx) * screendepth;
 349         alpha_func_double(w, h, src, srca, stride, dst, screenwidth * screendepth);
 350 }
 351
 352 /* Single-buffering draw_alpha */
 353 static void draw_alpha(int x, int y, int w, int h, unsigned char *src,
 354                 unsigned char *srca, int stride)
 355 {
 356         char *dst = (char *)inpage + (y * in_width + x) * in_depth;
 357         alpha_func(w, h, src, srca, stride, dst, in_width * in_depth);
 358 }
 359
 360 static void draw_osd(void)
 361 {
 362         if(!vo_doublebuffering)
 363                 vo_draw_text(in_width, in_height, draw_alpha);
 364 }
 365
 366 /* Render onto the screen */
 367 static void flip_page(void)
 368 {
 369         voodoo_2d_reg regs = *reg_2d;           /* Copy the regs */
 370         int i = 0;
 371
 372         if(vo_doublebuffering) {
 373                 /* Flip to an offscreen buffer for rendering */
 374                 uint32_t t = vidpageoffset;
 375                 void *j = vidpage;
 376
 377                 vidpage = hidpage;
 378                 hidpage = j;
 379                 vidpageoffset = hidpageoffset;
 380                 hidpageoffset = t;
 381         }
 382
 383         reg_2d->commandExtra = 0;
 384         reg_2d->clip0Min = 0;
 385         reg_2d->clip0Max = 0xffffffff;
 386
 387         reg_2d->srcBaseAddr = inpageoffset;
 388         reg_2d->srcXY = 0;
 389         reg_2d->srcFormat = in_voodoo_format;
 390         reg_2d->srcSize = XYREG(in_width, in_height);
 391
 392         reg_2d->dstBaseAddr = vidpageoffset;
 393         reg_2d->dstXY = XYREG(vidx, vidy);
 394         reg_2d->dstFormat = vid_voodoo_format;
 395         reg_2d->dstSize = XYREG(vidwidth, vidheight);
 396         reg_2d->command = S2S_STRECH_BLT | S2S_IMMED | S2S_ROP;
 397
 398         /* Wait for the command to finish (If we don't do this, we get wierd
 399          * sound corruption... */
 400         while((reg_IO->status & 0x1f) < 1)
 401                 /* Wait */;
 402
 403         *((volatile uint32_t *)((uint32_t *)reg_IO + COMMAND_3D)) = COMMAND_3D_NOP;
 404
 405         while(i < 3)
 406                 if(!(reg_IO->status & STATUS_BUSY))
 407                         i++;
 408
 409         /* Restore the old regs now */
 410         reg_2d->commandExtra = regs.commandExtra;
 411         reg_2d->clip0Min = regs.clip0Min;
 412         reg_2d->clip0Max = regs.clip0Max;
 413
 414         reg_2d->srcBaseAddr = regs.srcBaseAddr;
 415         reg_2d->srcXY = regs.srcXY;
 416         reg_2d->srcFormat = regs.srcFormat;
 417         reg_2d->srcSize = regs.srcSize;
 418
 419         reg_2d->dstBaseAddr = regs.dstBaseAddr;
 420         reg_2d->dstXY = regs.dstXY;
 421         reg_2d->dstFormat = regs.dstFormat;
 422         reg_2d->dstSize = regs.dstSize;
 423
 424         reg_2d->command = 0;
 425
 426         /* Render any text onto this buffer */
 427         if(vo_doublebuffering)
 428                 vo_draw_text(vidwidth, vidheight, draw_alpha_double);
 429
 430         /* And flip to the new buffer! */
 431         reg_IO->vidDesktopStartAddr = vidpageoffset;
 432 }
 433
 434 static int draw_frame(uint8_t *src[])
 435 {
 436         mem2agpcpy(inpage, src[0], in_width * in_depth * in_height);
 437         return 0;
 438 }
 439
 440 static int draw_slice(uint8_t *i[], int s[], int w, int h, int x, int y)
 441 {
 442         /* We want to render to the YUV to the input page + the location
 443          * of the stripes we're doing */
 444         reg_YUV->yuvBaseAddr = inpageoffset + in_width * in_depth * y + x;
 445         reg_YUV->yuvStride = in_width * in_depth;
 446
 447         /* Put the YUV channels into the voodoos internal combiner unit
 448          * thingie */
 449         mem2agpcpy_pic(YUV->Y, i[0], s[0], h    , YUV_STRIDE, s[0]);
 450         mem2agpcpy_pic(YUV->U, i[1], s[1], h / 2, YUV_STRIDE, s[1]);
 451         mem2agpcpy_pic(YUV->V, i[2], s[2], h / 2, YUV_STRIDE, s[2]);
 452         return 0;
 453 }
 454
 455 /* Attempt to start doing DR */
 456 static uint32_t get_image(mp_image_t *mpi)
 457 {
 458
 459         if(mpi->flags & MP_IMGFLAG_READABLE)
 460                 return VO_FALSE;
 461         if(mpi->type == MP_IMGTYPE_STATIC && vo_doublebuffering)
 462                 return VO_FALSE;
 463         if(mpi->type > MP_IMGTYPE_TEMP)
 464                 return VO_FALSE; // TODO ??
 465
 466         switch(in_format) {
 467         case IMGFMT_YUY2:
 468         case IMGFMT_BGR16:
 469         case IMGFMT_BGR24:
 470         case IMGFMT_BGR32:
 471         case IMGFMT_UYVY:
 472                 mpi->planes[0] = (char *)inpage;
 473                 mpi->stride[0] = in_width * in_depth;
 474                 break;
 475
 476         case IMGFMT_YV12:
 477         case IMGFMT_I420:
 478         case IMGFMT_IYUV:
 479                 if(!(mpi->flags & MP_IMGFLAG_ACCEPT_STRIDE) && mpi->w != YUV_STRIDE)
 480                         return VO_FALSE;
 481                 mpi->planes[0] = YUV->Y;
 482                 mpi->planes[1] = YUV->U;
 483                 mpi->planes[2] = YUV->V;
 484                 mpi->stride[0] = mpi->stride[1] = mpi->stride[2] = YUV_STRIDE;
 485                 reg_YUV->yuvBaseAddr = inpageoffset;
 486                 reg_YUV->yuvStride = in_width * in_depth;
 487                 break;
 488
 489         default:
 490                 return VO_FALSE;
 491         }
 492
 493         mpi->width = in_width;
 494         mpi->flags |= MP_IMGFLAG_DIRECT;
 495
 496         return VO_TRUE;
 497 }
 498
 499 static int control(uint32_t request, void *data, ...)
 500 {
 501         switch(request) {
 502         case VOCTRL_GET_IMAGE:
 503                 return get_image(data);
 504
 505         case VOCTRL_QUERY_FORMAT:
 506                 switch(*((uint32_t*)data)) {
 507                 case IMGFMT_YV12:
 508                 case IMGFMT_I420:
 509                 case IMGFMT_IYUV:
 510                 case IMGFMT_YUY2:
 511                 case IMGFMT_UYVY:
 512                 case IMGFMT_BGR16:
 513                 case IMGFMT_BGR24:
 514                 case IMGFMT_BGR32:
 515                         return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW |
 516                                 VFCAP_OSD | VFCAP_HWSCALE_UP | VFCAP_HWSCALE_DOWN;
 517                 }
 518
 519                 return 0;               /* Not supported */
 520
 521         case VOCTRL_FULLSCREEN:
 522                 setup_screen(!vo_fs);
 523                 return 0;
 524         }
 525
 526         return VO_NOTIMPL;
 527 }
 528
 529 /* Dummy funcs */
 530 static void check_events(void) {}