libvo/vo_wii.c

   1 /*
   2  * Video driver for Nintendo Wii/GameCube Framebuffer device
   3  *
   4  * Copyright (C) 2008 Jing Liu <fatersh-1@yahoo.com>
   5  *
   6  * Maintainer: Benjamin Zores <ben@geexbox.org>
   7  *
   8  * This file is part of MPlayer.
   9  *
  10  * MPlayer is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * MPlayer is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  22  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  */
  24
  25 /*
  26  * This driver handles dedicated ATI GPU, which can be found in:
  27  *  - Nintendo GameCube (ATI LSI Flipper @ 162 MHz)
  28  *  - Nintendo Wii (ATI Hollywood @ 243 MHz)
  29  *
  30  * Flipper and Hollywood chipsets are pretty similar, except from clock speed:
  31  *  - Embedded framebuffer is 2MB.
  32  *  - Texture cache is 1MB.
  33  *  - Vertex cache is 0.1 MB.
  34  *  - Framebuffer is YUY2, not RGB.
  35  *  - Best resolution is 480p (854x480)
  36  */
  37
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40 #include <string.h>
  41 #include <fcntl.h>
  42 #include <unistd.h>
  43 #include <errno.h>
  44 #include <ctype.h>
  45
  46 #include <sys/mman.h>
  47 #include <sys/ioctl.h>
  48 #include <sys/kd.h>
  49 #include <linux/fb.h>
  50
  51 #include "config.h"
  52 #include "video_out.h"
  53 #include "video_out_internal.h"
  54 #include "sub/sub.h"
  55 #include "mp_msg.h"
  56
  57 static const vo_info_t info = {
  58   "Nintendo Wii/GameCube Framebuffer Device",
  59   "wii",
  60   "Jing Liu <fartersh-1@yahoo.com>",
  61   ""
  62 };
  63
  64 const LIBVO_EXTERN(wii)
  65
  66 static signed int pre_init_err = -2;
  67
  68 static char *fb_dev_name = NULL;
  69
  70 static FILE *vt_fp = NULL;
  71 static int vt_doit = 1;
  72
  73 static int fb_dev_fd;
  74 static int fb_tty_fd = -1;
  75 static size_t fb_size;
  76 static uint8_t *frame_buffer;
  77 static uint8_t *center;
  78 static struct fb_var_screeninfo fb_orig_vinfo;
  79 static struct fb_var_screeninfo fb_vinfo;
  80 static int fb_pixel_size;       // 32:  4  24:  3  16:  2  15:  2
  81 static int fb_line_len;
  82 static int in_width;
  83 static int in_height;
  84 static int out_width;
  85 static int out_height;
  86 static int fs;
  87
  88 static int fb_preinit(int reset)
  89 {
  90   static int fb_preinit_done = 0;
  91   static int fb_works = 0;
  92
  93   if (reset) {
  94     fb_preinit_done = 0;
  95     return 0;
  96   }
  97
  98   if (fb_preinit_done)
  99     return fb_works;
 100
 101   if (!fb_dev_name && !(fb_dev_name = getenv("FRAMEBUFFER")))
 102     fb_dev_name = strdup("/dev/fb0");
 103   mp_msg(MSGT_VO, MSGL_V, "using %s\n", fb_dev_name);
 104
 105   if ((fb_dev_fd = open(fb_dev_name, O_RDWR)) == -1) {
 106     mp_msg(MSGT_VO, MSGL_ERR, "Can't open %s: %s\n", fb_dev_name, strerror(errno));
 107     goto err_out;
 108   }
 109   if (ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo)) {
 110     mp_msg(MSGT_VO, MSGL_ERR, "Can't get VSCREENINFO: %s\n", strerror(errno));
 111     goto err_out_fd;
 112   }
 113   fb_orig_vinfo = fb_vinfo;
 114
 115   if ((fb_tty_fd = open("/dev/tty", O_RDWR)) < 0) {
 116     mp_msg(MSGT_VO, MSGL_ERR, "notice: Can't open /dev/tty: %s\n", strerror(errno));
 117     goto err_out_fd;
 118   }
 119
 120   fb_preinit_done = 1;
 121   fb_works = 1;
 122   return 1;
 123
 124  err_out_fd:
 125   close(fb_dev_fd);
 126   fb_dev_fd = -1;
 127  err_out:
 128   fb_preinit_done = 1;
 129   fb_works = 0;
 130
 131   return 0;
 132 }
 133
 134 static void vt_set_textarea(int u, int l)
 135 {
 136   /* how can I determine the font height?
 137    * just use 16 for now
 138    */
 139   int urow = ((u + 15) / 16) + 1;
 140   int lrow = l / 16;
 141
 142   mp_msg(MSGT_VO, MSGL_DBG2, "vt_set_textarea(%d, %d): %d,%d\n", u, l, urow, lrow);
 143
 144   if (vt_fp) {
 145     fprintf(vt_fp, "\33[%d;%dr\33[%d;%dH", urow, lrow, lrow, 0);
 146     fflush(vt_fp);
 147   }
 148 }
 149
 150 static int config(uint32_t width, uint32_t height, uint32_t d_width,
 151                   uint32_t d_height, uint32_t flags, char *title,
 152                   uint32_t format)
 153 {
 154   struct fb_fix_screeninfo fb_finfo;
 155   uint32_t black = 0x00800080;
 156   long temp;
 157   int vt_fd;
 158
 159   fs = flags & VOFLAG_FULLSCREEN;
 160
 161   if (pre_init_err == -2) {
 162     mp_msg(MSGT_VO, MSGL_ERR, "Internal fatal error: config() was called before preinit()\n");
 163     return -1;
 164   }
 165
 166   if (pre_init_err)
 167     return 1;
 168
 169   in_width  = width;
 170   in_height = height;
 171
 172   out_width  = (d_width && fs) ? d_width  : width;
 173   out_height = (d_width && fs) ? d_height : height;
 174
 175   fb_vinfo.xres_virtual = fb_vinfo.xres;
 176   fb_vinfo.yres_virtual = fb_vinfo.yres;
 177
 178   if (fb_tty_fd >= 0 && ioctl(fb_tty_fd, KDSETMODE, KD_GRAPHICS) < 0) {
 179     mp_msg(MSGT_VO, MSGL_V, "Can't set graphics mode: %s\n", strerror(errno));
 180     close(fb_tty_fd);
 181     fb_tty_fd = -1;
 182   }
 183
 184   if (ioctl(fb_dev_fd, FBIOPUT_VSCREENINFO, &fb_vinfo)) {
 185     mp_msg(MSGT_VO, MSGL_ERR, "Can't put VSCREENINFO: %s\n", strerror(errno));
 186     if (fb_tty_fd >= 0 && ioctl(fb_tty_fd, KDSETMODE, KD_TEXT) < 0) {
 187       mp_msg(MSGT_VO, MSGL_ERR, "Can't restore text mode: %s\n", strerror(errno));
 188     }
 189     return 1;
 190   }
 191
 192   fb_pixel_size = 2;
 193
 194   if (fs) {
 195     out_width  = fb_vinfo.xres;
 196     out_height = fb_vinfo.yres;
 197   }
 198   if (out_width < in_width || out_height < in_height) {
 199     mp_msg(MSGT_VO, MSGL_ERR, "screensize is smaller than video size\n");
 200     return 1;
 201   }
 202
 203   if (ioctl(fb_dev_fd, FBIOGET_FSCREENINFO, &fb_finfo)) {
 204     mp_msg(MSGT_VO, MSGL_ERR, "Can't get FSCREENINFO: %s\n", strerror(errno));
 205     return 1;
 206   }
 207
 208   if (fb_finfo.type != FB_TYPE_PACKED_PIXELS) {
 209     mp_msg(MSGT_VO, MSGL_ERR, "type %d not supported\n", fb_finfo.type);
 210     return 1;
 211   }
 212
 213   fb_line_len = fb_finfo.line_length;
 214   fb_size     = fb_finfo.smem_len;
 215
 216   frame_buffer = (uint8_t *) mmap(0, fb_size, PROT_READ | PROT_WRITE,
 217                                   MAP_SHARED, fb_dev_fd, 0);
 218   if (frame_buffer == (uint8_t *) -1) {
 219     mp_msg(MSGT_VO, MSGL_ERR, "Can't mmap %s: %s\n", fb_dev_name, strerror(errno));
 220     return 1;
 221   }
 222
 223   center = frame_buffer +
 224     ((out_width - in_width) / 2) * fb_pixel_size +
 225     ((out_height - in_height) / 2) * fb_line_len;
 226
 227   mp_msg(MSGT_VO, MSGL_DBG2, "frame_buffer @ %p\n", frame_buffer);
 228   mp_msg(MSGT_VO, MSGL_DBG2, "center @ %p\n", center);
 229   mp_msg(MSGT_VO, MSGL_V, "pixel per line: %d\n", fb_line_len / fb_pixel_size);
 230
 231   /* blanking screen */
 232   for (temp = 0; temp < fb_size; temp += 4)
 233     memcpy(frame_buffer + temp, (void *) &black, 4);
 234
 235   if (vt_doit && (vt_fd = open("/dev/tty", O_WRONLY)) == -1) {
 236     mp_msg(MSGT_VO, MSGL_ERR, "can't open /dev/tty: %s\n", strerror(errno));
 237     vt_doit = 0;
 238   }
 239   if (vt_doit && !(vt_fp = fdopen(vt_fd, "w"))) {
 240     mp_msg(MSGT_VO, MSGL_ERR, "can't fdopen /dev/tty: %s\n", strerror(errno));
 241     vt_doit = 0;
 242   }
 243
 244   if (vt_doit)
 245     vt_set_textarea((out_height + in_height) / 2, fb_vinfo.yres);
 246
 247   return 0;
 248 }
 249
 250 static int query_format(uint32_t format)
 251 {
 252   if (!fb_preinit(0))
 253     return 0;
 254
 255   if (format != IMGFMT_YUY2)
 256     return 0;
 257
 258   return VFCAP_ACCEPT_STRIDE | VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW;
 259 }
 260
 261 static void draw_alpha(int x0, int y0, int w, int h, unsigned char *src,
 262                        unsigned char *srca, int stride)
 263 {
 264   unsigned char *dst;
 265
 266   dst = center + fb_line_len * y0 + fb_pixel_size * x0;
 267
 268   vo_draw_alpha_yuy2(w, h, src, srca, stride, dst, fb_line_len);
 269 }
 270
 271 static int draw_frame(uint8_t *src[])
 272 {
 273   return 1;
 274 }
 275
 276 static int draw_slice(uint8_t *src[], int stride[], int w, int h, int x, int y)
 277 {
 278   uint8_t *d, *s;
 279
 280   d = center + fb_line_len * y + fb_pixel_size * x;
 281
 282   s = src[0];
 283   while (h) {
 284     memcpy(d, s, w * fb_pixel_size);
 285     d += fb_line_len;
 286     s += stride[0];
 287     h--;
 288   }
 289
 290   return 0;
 291 }
 292
 293 static void check_events(void)
 294 {
 295 }
 296
 297 static void flip_page(void)
 298 {
 299 }
 300
 301 static void draw_osd(void)
 302 {
 303   vo_draw_text(in_width, in_height, draw_alpha);
 304 }
 305
 306 static void uninit(void)
 307 {
 308   if (ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo))
 309     mp_msg(MSGT_VO, MSGL_WARN, "ioctl FBIOGET_VSCREENINFO: %s\n", strerror(errno));
 310   fb_orig_vinfo.xoffset = fb_vinfo.xoffset;
 311   fb_orig_vinfo.yoffset = fb_vinfo.yoffset;
 312   if (ioctl(fb_dev_fd, FBIOPUT_VSCREENINFO, &fb_orig_vinfo))
 313     mp_msg(MSGT_VO, MSGL_WARN, "Can't reset original fb_var_screeninfo: %s\n", strerror(errno));
 314   if (fb_tty_fd >= 0) {
 315     if (ioctl(fb_tty_fd, KDSETMODE, KD_TEXT) < 0)
 316       mp_msg(MSGT_VO, MSGL_WARN, "Can't restore text mode: %s\n", strerror(errno));
 317   }
 318   if (vt_doit)
 319     vt_set_textarea(0, fb_orig_vinfo.yres);
 320   close(fb_tty_fd);
 321   close(fb_dev_fd);
 322   if (frame_buffer)
 323     munmap(frame_buffer, fb_size);
 324   frame_buffer = NULL;
 325   fb_preinit(1);
 326 }
 327
 328 static int preinit(const char *vo_subdevice)
 329 {
 330   pre_init_err = 0;
 331
 332   if (!pre_init_err)
 333     return pre_init_err = (fb_preinit(0) ? 0 : -1);
 334   return -1;
 335 }
 336
 337 static uint32_t get_image(mp_image_t *mpi)
 338 {
 339   if (((mpi->type != MP_IMGTYPE_STATIC) && (mpi->type != MP_IMGTYPE_TEMP)) ||
 340       (mpi->flags & MP_IMGFLAG_PLANAR) ||
 341       (mpi->flags & MP_IMGFLAG_YUV) ||
 342       (mpi->width != in_width) ||
 343       (mpi->height != in_height)
 344      )
 345     return VO_FALSE;
 346
 347   mpi->planes[0] = center;
 348   mpi->stride[0] = fb_line_len;
 349   mpi->flags |= MP_IMGFLAG_DIRECT;
 350
 351   return VO_TRUE;
 352 }
 353
 354 static int control(uint32_t request, void *data)
 355 {
 356   if (request == VOCTRL_GET_IMAGE)
 357     return get_image(data);
 358   else if (request == VOCTRL_QUERY_FORMAT)
 359     return query_format(*((uint32_t*) data));
 360
 361   return VO_NOTIMPL;
 362 }