libvo/vesa_lvo.c

   1 /*
   2  *  vesa_lvo.c
   3  *
   4  *      Copyright (C) Nick Kurshev <nickols_k@mail.ru> - Oct 2001
   5  *
   6  *  You can redistribute this file under terms and conditions
   7  *  of GNU General Public licence v2.
   8  *
   9  * This file contains vo_vesa interface to Linux Video Overlay.
  10  * (Partly based on vo_mga.c from mplayer's package)
  11  */
  12
  13 #include <inttypes.h>
  14 #include <sys/ioctl.h>
  15 #include <unistd.h>
  16 #include <fcntl.h>
  17 #include <sys/mman.h>
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20 #include <string.h>
  21
  22 #include "config.h"
  23 #include "mp_msg.h"
  24 #include "help_mp.h"
  25
  26 #include "vesa_lvo.h"
  27 #include "img_format.h"
  28 #include "drivers/mga_vid.h" /* <- should be changed to "linux/'something'.h" */
  29 #include "fastmemcpy.h"
  30 #include "osd.h"
  31 #include "video_out.h"
  32 #include "libmpcodecs/vfcap.h"
  33
  34 #define WIDTH_ALIGN 32 /* should be 16 for rage:422 and 32 for rage:420 */
  35 #define NUM_FRAMES 10
  36 #define UNUSED(x) ((void)(x)) /**< Removes warning about unused arguments */
  37
  38 static uint8_t *frames[NUM_FRAMES];
  39
  40 static int lvo_handler = -1;
  41 static uint8_t *lvo_mem = NULL;
  42 static uint8_t next_frame;
  43 static mga_vid_config_t mga_vid_config;
  44 static unsigned image_bpp,image_height,image_width,src_format;
  45 uint32_t vlvo_control(uint32_t request, void *data, ...);
  46
  47 #define PIXEL_SIZE() ((video_mode_info.BitsPerPixel+7)/8)
  48 #define SCREEN_LINE_SIZE(pixel_size) (video_mode_info.XResolution*(pixel_size) )
  49 #define IMAGE_LINE_SIZE(pixel_size) (image_width*(pixel_size))
  50
  51 extern vo_functions_t video_out_vesa;
  52
  53 int vlvo_preinit(const char *drvname)
  54 {
  55   mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_ThisBranchIsNoLongerSupported);
  56   return -1;
  57   if( mp_msg_test(MSGT_VO,MSGL_DBG2) ) {
  58     mp_msg(MSGT_VO,MSGL_DBG2, "vesa_lvo: vlvo_preinit(%s) was called\n",drvname);}
  59         lvo_handler = open(drvname,O_RDWR);
  60         if(lvo_handler == -1)
  61         {
  62                 mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_CouldntOpen,drvname);
  63                 return -1;
  64         }
  65         /* we are able to tune up this stuff depend on fourcc format */
  66         video_out_vesa.draw_slice=vlvo_draw_slice;
  67         video_out_vesa.draw_frame=vlvo_draw_frame;
  68         video_out_vesa.flip_page=vlvo_flip_page;
  69         video_out_vesa.draw_osd=vlvo_draw_osd;
  70   video_out_vesa.control=vlvo_control;
  71         return 0;
  72 }
  73
  74 int      vlvo_init(unsigned src_width,unsigned src_height,
  75                    unsigned x_org,unsigned y_org,unsigned dst_width,
  76                    unsigned dst_height,unsigned format,unsigned dest_bpp)
  77 {
  78   size_t i,awidth;
  79   mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_ThisBranchIsNoLongerSupported);
  80   return -1;
  81   if( mp_msg_test(MSGT_VO,MSGL_DBG2) ) {
  82     mp_msg(MSGT_VO,MSGL_DBG2, "vesa_lvo: vlvo_init() was called\n");}
  83         image_width = src_width;
  84         image_height = src_height;
  85         mga_vid_config.version=MGA_VID_VERSION;
  86         src_format = mga_vid_config.format=format;
  87         awidth = (src_width + (WIDTH_ALIGN-1)) & ~(WIDTH_ALIGN-1);
  88         switch(format){
  89         case IMGFMT_YV12:
  90         case IMGFMT_I420:
  91         case IMGFMT_IYUV:
  92             image_bpp=16;
  93             mga_vid_config.frame_size = awidth*src_height+(awidth*src_height)/2;
  94             break;
  95         case IMGFMT_YUY2:
  96         case IMGFMT_UYVY:
  97             image_bpp=16;
  98             mga_vid_config.frame_size = awidth*src_height*2;
  99             break;
 100         case IMGFMT_RGB15:
 101         case IMGFMT_BGR15:
 102         case IMGFMT_RGB16:
 103         case IMGFMT_BGR16:
 104             image_bpp=16;
 105             mga_vid_config.frame_size = awidth*src_height*2;
 106             break;
 107         case IMGFMT_RGB24:
 108         case IMGFMT_BGR24:
 109             image_bpp=24;
 110             mga_vid_config.frame_size = awidth*src_height*3;
 111             break;
 112         case IMGFMT_RGB32:
 113         case IMGFMT_BGR32:
 114             image_bpp=32;
 115             mga_vid_config.frame_size = awidth*src_height*4;
 116             break;
 117         default:
 118             mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_InvalidOutputFormat,vo_format_name(format),format);
 119             return -1;
 120         }
 121         mga_vid_config.colkey_on=0;
 122         mga_vid_config.src_width = src_width;
 123         mga_vid_config.src_height= src_height;
 124         mga_vid_config.dest_width = dst_width;
 125         mga_vid_config.dest_height= dst_height;
 126         mga_vid_config.x_org=x_org;
 127         mga_vid_config.y_org=y_org;
 128         mga_vid_config.num_frames=NUM_FRAMES;
 129         if (ioctl(lvo_handler,MGA_VID_CONFIG,&mga_vid_config))
 130         {
 131                 perror("vesa_lvo: Error in mga_vid_config ioctl()");
 132                 mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_IncompatibleDriverVersion);
 133                 return -1;
 134         }
 135         ioctl(lvo_handler,MGA_VID_ON,0);
 136
 137         frames[0] = (char*)mmap(0,mga_vid_config.frame_size*mga_vid_config.num_frames,PROT_WRITE,MAP_SHARED,lvo_handler,0);
 138         for(i=1;i<NUM_FRAMES;i++)
 139                 frames[i] = frames[i-1] + mga_vid_config.frame_size;
 140         next_frame = 0;
 141         lvo_mem = frames[next_frame];
 142
 143         /*clear the buffer*/
 144         memset(frames[0],0x80,mga_vid_config.frame_size*mga_vid_config.num_frames);
 145         return 0;
 146 }
 147
 148 void vlvo_term( void )
 149 {
 150   if( mp_msg_test(MSGT_VO,MSGL_DBG2) ) {
 151     mp_msg(MSGT_VO,MSGL_DBG2, "vesa_lvo: vlvo_term() was called\n");}
 152         ioctl( lvo_handler,MGA_VID_OFF,0 );
 153         munmap(frames[0],mga_vid_config.frame_size*mga_vid_config.num_frames);
 154         if(lvo_handler != -1) close(lvo_handler);
 155 }
 156
 157 uint32_t vlvo_draw_slice_420(uint8_t *image[], int stride[], int w,int h,int x,int y)
 158 {
 159     uint8_t *src;
 160     uint8_t *dest;
 161     uint32_t bespitch,bespitch2;
 162     int i;
 163
 164     bespitch = (mga_vid_config.src_width + (WIDTH_ALIGN-1)) & ~(WIDTH_ALIGN-1);
 165     bespitch2 = bespitch/2;
 166
 167     dest = lvo_mem + bespitch * y + x;
 168     src = image[0];
 169     for(i=0;i<h;i++){
 170         memcpy(dest,src,w);
 171         src+=stride[0];
 172         dest += bespitch;
 173     }
 174
 175     w/=2;h/=2;x/=2;y/=2;
 176
 177     dest = lvo_mem + bespitch*mga_vid_config.src_height + bespitch2 * y + x;
 178     src = image[1];
 179     for(i=0;i<h;i++){
 180         memcpy(dest,src,w);
 181         src+=stride[1];
 182         dest += bespitch2;
 183     }
 184
 185     dest = lvo_mem + bespitch*mga_vid_config.src_height
 186                    + bespitch*mga_vid_config.src_height / 4
 187                    + bespitch2 * y + x;
 188     src = image[2];
 189     for(i=0;i<h;i++){
 190         memcpy(dest,src,w);
 191         src+=stride[2];
 192         dest += bespitch2;
 193     }
 194     return 0;
 195 }
 196
 197 uint32_t vlvo_draw_slice(uint8_t *image[], int stride[], int w,int h,int x,int y)
 198 {
 199  if( mp_msg_test(MSGT_VO,MSGL_DBG2) ) {
 200    mp_msg(MSGT_VO,MSGL_DBG2, "vesa_lvo: vlvo_draw_slice() was called\n");}
 201     if(src_format == IMGFMT_YV12 || src_format == IMGFMT_I420 || src_format == IMGFMT_IYUV)
 202         vlvo_draw_slice_420(image,stride,w,h,x,y);
 203     else
 204     {
 205         uint8_t *dst;
 206         uint8_t bytpp;
 207         bytpp = (image_bpp+7)/8;
 208         dst = lvo_mem + (image_width * y + x)*bytpp;
 209         /* vlvo_draw_slice_422(image,stride,w,h,x,y); just for speed */
 210         memcpy(dst,image[0],mga_vid_config.frame_size);
 211     }
 212  return 0;
 213 }
 214
 215 uint32_t vlvo_draw_frame(uint8_t *image[])
 216 {
 217 /* Note it's very strange but sometime for YUY2 draw_frame is called */
 218   memcpy(lvo_mem,image[0],mga_vid_config.frame_size);
 219   if( mp_msg_test(MSGT_VO,MSGL_DBG2) ) {
 220     mp_msg(MSGT_VO,MSGL_DBG2, "vesa_lvo: vlvo_flip_page() was called\n");}
 221   return 0;
 222 }
 223
 224 void     vlvo_flip_page(void)
 225 {
 226   if( mp_msg_test(MSGT_VO,MSGL_DBG2) ) {
 227     mp_msg(MSGT_VO,MSGL_DBG2, "vesa_lvo: vlvo_draw_osd() was called\n");}
 228   if(vo_doublebuffering)
 229   {
 230         ioctl(lvo_handler,MGA_VID_FSEL,&next_frame);
 231         next_frame=(next_frame+1)%mga_vid_config.num_frames;
 232         lvo_mem=frames[next_frame];
 233   }
 234 }
 235
 236 static void draw_alpha_null(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride)
 237 {
 238   UNUSED(x0);
 239   UNUSED(y0);
 240   UNUSED(w);
 241   UNUSED(h);
 242   UNUSED(src);
 243   UNUSED(srca);
 244   UNUSED(stride);
 245 }
 246
 247 static void draw_alpha(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride)
 248 {
 249     uint32_t bespitch = /*(*/mga_vid_config.src_width;// + 15) & ~15;
 250     switch(mga_vid_config.format){
 251     case IMGFMT_BGR15:
 252     case IMGFMT_RGB15:
 253         vo_draw_alpha_rgb15(w,h,src,srca,stride,lvo_mem+2*(y0*bespitch+x0),2*bespitch);
 254         break;
 255     case IMGFMT_BGR16:
 256     case IMGFMT_RGB16:
 257         vo_draw_alpha_rgb16(w,h,src,srca,stride,lvo_mem+2*(y0*bespitch+x0),2*bespitch);
 258         break;
 259     case IMGFMT_BGR24:
 260     case IMGFMT_RGB24:
 261         vo_draw_alpha_rgb24(w,h,src,srca,stride,lvo_mem+3*(y0*bespitch+x0),3*bespitch);
 262         break;
 263     case IMGFMT_BGR32:
 264     case IMGFMT_RGB32:
 265         vo_draw_alpha_rgb32(w,h,src,srca,stride,lvo_mem+4*(y0*bespitch+x0),4*bespitch);
 266         break;
 267     case IMGFMT_YV12:
 268     case IMGFMT_IYUV:
 269     case IMGFMT_I420:
 270         vo_draw_alpha_yv12(w,h,src,srca,stride,lvo_mem+bespitch*y0+x0,bespitch);
 271         break;
 272     case IMGFMT_YUY2:
 273         vo_draw_alpha_yuy2(w,h,src,srca,stride,lvo_mem+2*(bespitch*y0+x0),bespitch);
 274         break;
 275     case IMGFMT_UYVY:
 276         vo_draw_alpha_yuy2(w,h,src,srca,stride,lvo_mem+2*(bespitch*y0+x0)+1,bespitch);
 277         break;
 278     default:
 279         draw_alpha_null(x0,y0,w,h,src,srca,stride);
 280     }
 281 }
 282
 283 void     vlvo_draw_osd(void)
 284 {
 285   if( mp_msg_test(MSGT_VO,MSGL_DBG2) ) {
 286     mp_msg(MSGT_VO,MSGL_DBG2,"vesa_lvo: vlvo_draw_osd() was called\n"); }
 287   /* TODO: hw support */
 288 #if 0
 289 /* disable this stuff until new fbvid.h interface will be implemented
 290   because in different fourcc radeon_vid and rage128_vid have different
 291   width alignment */
 292   vo_draw_text(mga_vid_config.src_width,mga_vid_config.src_height,draw_alpha);
 293 #endif
 294 }
 295
 296 uint32_t vlvo_query_info(uint32_t format)
 297 {
 298   if( mp_msg_test(MSGT_VO,MSGL_DBG2) ) {
 299     mp_msg(MSGT_VO,MSGL_DBG2, "vesa_lvo: query_format was called: %x (%s)\n",format,vo_format_name(format)); }
 300   return VFCAP_CSP_SUPPORTED;
 301 }
 302
 303 uint32_t vlvo_control(uint32_t request, void *data, ...)
 304 {
 305   switch (request) {
 306   case VOCTRL_QUERY_FORMAT:
 307     return vlvo_query_info(*((uint32_t*)data));
 308   }
 309   return VO_NOTIMPL;
 310 }