vo_dfbmga.c

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· C语言 代码 · 共 1,527 行 · 第 1/4 页

          if ((in_height > (0.95 * screen_height)) &&
              (in_height < screen_height))
               out_height = in_height;
          else
               out_height = screen_height;

          aspect_save_screenres( out_width, out_height );
          aspect( &out_width, &out_height, (flags & VOFLAG_FULLSCREEN) ? A_ZOOM : A_NOZOOM );

          if (in_width != out_width ||
              in_height != out_height)
               stretch = 1;
          else
               stretch = 0;

          c2rect.x = (screen_width  - out_width)  / 2;
          c2rect.y = (screen_height - out_height) / 2;
          c2rect.w = out_width;
          c2rect.h = out_height;

          c2frame->Clear( c2frame, 0, 0, 0, 0xff );
          c2frame->Flip( c2frame, NULL, 0 );
          c2frame->Clear( c2frame, 0, 0, 0, 0xff );
          c2frame->Flip( c2frame, NULL, 0 );
          c2frame->Clear( c2frame, 0, 0, 0, 0xff );

          mp_msg( MSGT_VO, MSGL_INFO, "vo_dfbmga: CRTC2 using %s buffering\n",
                  dlc.buffermode == DLBM_TRIPLE ? "triple" :
                  dlc.buffermode == DLBM_BACKVIDEO ? "double" : "single" );
          mp_msg( MSGT_VO, MSGL_INFO, "vo_dfbmga: CRTC2 surface %dx%d %s\n", screen_width, screen_height, pixelformat_name( dlc.pixelformat ) );
     } else {
          use_spic      = 0;
     }

     /*
      * Sub-picture
      */
     if (use_spic) {
          /* Draw OSD to sub-picture surface */
          IDirectFBPalette *palette;
          DFBColor          color;
          int               i;
          struct layer_enum l = {
               "Matrox CRTC2 Sub-Picture",
               &spic,
               DFB_UNSUPPORTED
          };
          dfb->EnumDisplayLayers( dfb, get_layer_by_name, &l );
          if (l.res != DFB_OK) {
               mp_msg( MSGT_VO, MSGL_ERR, "vo_dfbmga: Can't get sub-picture layer - %s\n",
                       DirectFBErrorString( l.res ) );
               return -1;
          }
          if ((res = spic->SetCooperativeLevel( spic, DLSCL_EXCLUSIVE )) != DFB_OK) {
               mp_msg( MSGT_VO, MSGL_ERR, "Can't get exclusive access to sub-picture - %s\n",
                       DirectFBErrorString( res ) );
               return -1;
          }

          dlc.flags       = DLCONF_PIXELFORMAT | DLCONF_BUFFERMODE;
          dlc.pixelformat = DSPF_ALUT44;
          dlc.buffermode  = buffermode;

#if DIRECTFBVERSION > DFB_VERSION(0,9,16)
          dlc.flags      |= DLCONF_OPTIONS;
          dlc.options     = DLOP_ALPHACHANNEL;
#endif
          if ((res = spic->TestConfiguration( spic, &dlc, &failed )) != DFB_OK) {
               mp_msg( MSGT_VO, MSGL_ERR,
                       "vo_dfbmga: Invalid sub-picture configuration - %s!\n",
                       DirectFBErrorString( res ) );
               return -1;
          }
          if ((res = spic->SetConfiguration( spic, &dlc )) != DFB_OK) {
               mp_msg( MSGT_VO, MSGL_ERR,
                       "vo_dfbmga: Sub-picture configuration failed - %s!\n",
                       DirectFBErrorString( res ) );
               return -1;
          }

          spic->GetSurface( spic, &spicframe );

          spicframe->GetPalette( spicframe, &palette );
          color.a = 0xff;
          for (i = 0; i < 16; i++) {
               color.r = i * 17;
               color.g = i * 17;
               color.b = i * 17;
               palette->SetEntries( palette, &color, 1, i );
          }
          palette->Release( palette );

          spicframe->Clear( spicframe, 0, 0, 0, 0 );
          spicframe->Flip( spicframe, NULL, 0 );
          spicframe->Clear( spicframe, 0, 0, 0, 0 );
          spicframe->Flip( spicframe, NULL, 0 );
          spicframe->Clear( spicframe, 0, 0, 0, 0 );

          mp_msg( MSGT_VO, MSGL_INFO, "vo_dfbmga: Sub-picture layer using %s buffering\n",
                  dlc.buffermode == DLBM_TRIPLE ? "triple" :
                  dlc.buffermode == DLBM_BACKVIDEO ? "double" : "single" );

          subframe = spicframe;
          subrect = NULL;
     } else if (use_crtc2) {
          /* Draw OSD to CRTC2 surface */
          subframe = c2frame;
          subrect = &c2rect;
     } else {
          /* Draw OSD to BES surface */
          subframe = besframe;
          subrect = &besrect;
     }

     subframe->GetSize( subframe, &sub_width, &sub_height );
     subframe->GetPixelFormat( subframe, &subframe_format );
     mp_msg( MSGT_VO, MSGL_INFO, "vo_dfbmga: Sub-picture surface %dx%d %s (%s)\n",
             sub_width, sub_height,
             pixelformat_name( subframe_format ),
             use_crtc2 ? (use_spic ? "Sub-picture layer" : "CRTC2") : "BES" );

     osd_dirty = 0;
     osd_current = 1;
     blit_done = 0;

     return 0;
}

static int
query_format( uint32_t format )
{
     switch (format) {
          case IMGFMT_BGR32:
          case IMGFMT_BGR24:
          case IMGFMT_BGR16:
          case IMGFMT_BGR15:
          case IMGFMT_UYVY:
          case IMGFMT_YV12:
          case IMGFMT_I420:
          case IMGFMT_IYUV:
               if (is_g200)
                    return 0;
          case IMGFMT_YUY2:
               break;
#if DIRECTFBVERSION > DFB_VERSION(0,9,21)
          case IMGFMT_NV12:
          case IMGFMT_NV21:
               if (!use_bes || use_crtc2)
                    return 0;
               break;
#endif
          default:
               return 0;
     }

     return (VFCAP_HWSCALE_UP |
             VFCAP_HWSCALE_DOWN |
             VFCAP_CSP_SUPPORTED_BY_HW |
             VFCAP_CSP_SUPPORTED |
             VFCAP_OSD);
}

static void
vo_draw_alpha_alut44( int w, int h,
                    unsigned char* src,
                    unsigned char *srca,
                    int srcstride,
                    unsigned char* dst,
                    int dststride )
{
     int x;

     while (h--) {
          for (x = 0; x < w; x++) {
               if (srca[x])
                    dst[x] = ((255 - srca[x]) & 0xF0) | (src[x] >> 4);
          }
          src  += srcstride;
          srca += srcstride;
          dst  += dststride;
     }
}

static void
clear_alpha( int x0, int y0,
             int w, int h )
{
     if (use_spic && !flipping && vo_osd_changed_flag)
          subframe->FillRectangle( subframe, x0, y0, w, h );
}

static void
draw_alpha( int x0, int y0,
            int w, int h,
            unsigned char *src,
	    unsigned char *srca,
            int stride )
{
     void *dst;
     int pitch;

     if (use_spic) {
          if (!osd_changed || (!flipping && !vo_osd_changed_flag))
               return;
          osd_dirty |= osd_current;
     } else {
          if (x0 < subrect->x ||
              y0 < subrect->y ||
              x0 + w > subrect->x + subrect->w ||
              y0 + h > subrect->y + subrect->h)
               osd_dirty |= osd_current;
     }

     if (subframe->Lock( subframe, DSLF_READ | DSLF_WRITE, &dst, &pitch ) != DFB_OK)
          return;

     switch (subframe_format) {
     case DSPF_ALUT44:
          vo_draw_alpha_alut44( w, h, src, srca, stride,
                                ((uint8_t *) dst) + pitch * y0 + x0,
                              pitch );
          break;
     case DSPF_RGB32:
     case DSPF_ARGB:
	  vo_draw_alpha_rgb32( w, h, src, srca, stride,
			       (( uint8_t *) dst) + pitch * y0 + 4 * x0,
                               pitch );
	  break;
     case DSPF_RGB24:
	  vo_draw_alpha_rgb24( w, h, src, srca, stride,
			       ((uint8_t *) dst) + pitch * y0 + 3 * x0,
                               pitch );
	  break;
     case DSPF_RGB16:
	  vo_draw_alpha_rgb16( w, h, src, srca, stride,
			       ((uint8_t *) dst) + pitch * y0 + 2 * x0,
                               pitch );
	  break;
     case DSPF_ARGB1555:
	  vo_draw_alpha_rgb15( w, h, src, srca, stride,
			       ((uint8_t *) dst) + pitch * y0 + 2 * x0,
                               pitch );
	  break;
     case DSPF_YUY2:
	  vo_draw_alpha_yuy2( w, h, src, srca, stride,
			      ((uint8_t *) dst) + pitch * y0 + 2 * x0,
                              pitch );
	  break;
     case DSPF_UYVY:
	  vo_draw_alpha_yuy2( w, h, src, srca, stride,
			      ((uint8_t *) dst) + pitch * y0 + 2 * x0 + 1,
                              pitch );
	  break;
#if DIRECTFBVERSION > DFB_VERSION(0,9,21)
     case DSPF_NV12:
     case DSPF_NV21:
#endif
     case DSPF_I420:
     case DSPF_YV12:
	  vo_draw_alpha_yv12( w, h, src, srca, stride,
			      ((uint8_t *) dst) + pitch * y0 + x0,
                              pitch );
	  break;
     }

     subframe->Unlock( subframe );
}

static int
draw_frame( uint8_t * src[] )
{
     return -1;
}

static int
draw_slice( uint8_t * src[], int stride[], int w, int h, int x, int y )
{
     void *dst;
     int pitch;

     if (frame->Lock( frame, DSLF_WRITE, &dst, &pitch ) != DFB_OK)
          return VO_FALSE;

     memcpy_pic( dst + pitch * y + x, src[0],
                 w, h, pitch, stride[0] );

     dst += pitch * buf_height;

     y /= 2;
     h /= 2;

#if DIRECTFBVERSION > DFB_VERSION(0,9,21)
     if (frame_format == DSPF_NV12 || frame_format == DSPF_NV21) {
          memcpy_pic( dst + pitch * y + x, src[1],
                      w, h, pitch, stride[1] );
     } else
#endif
     {
     x /= 2;
     w /= 2;
     pitch /= 2;

     if (frame_format == DSPF_I420 )
          memcpy_pic( dst + pitch * y + x, src[1],
                      w, h, pitch, stride[1] );
     else 
          memcpy_pic( dst + pitch * y + x, src[2],
                      w, h, pitch, stride[2] );

     dst += pitch * buf_height / 2;

     if (frame_format == DSPF_I420 )
          memcpy_pic( dst + pitch * y + x, src[2],
                      w, h, pitch, stride[2] );
     else
          memcpy_pic( dst + pitch * y + x, src[1],
                      w, h, pitch, stride[1] );
     }

     frame->Unlock( frame );

     return VO_TRUE;
}

static void
blit_to_screen( void )
{
     IDirectFBSurface *blitsrc = frame;
     DFBRectangle *srect = NULL;

     if (use_bes) {
#if DIRECTFBVERSION > DFB_VERSION(0,9,15)
          if (vo_vsync && !flipping && !use_crtc2)
               bes->WaitForSync( bes );
#endif

          besframe->Blit( besframe, blitsrc, NULL, besrect.x, besrect.y );
          blitsrc = besframe;
          srect = &besrect;
     }

     if (use_crtc2) {
#if DIRECTFBVERSION > DFB_VERSION(0,9,15)
          if (vo_vsync && !flipping)
               crtc2->WaitForSync( crtc2 );
#endif

     if (stretch)
               c2frame->StretchBlit( c2frame, blitsrc, srect, &c2rect );
     else
               c2frame->Blit( c2frame, blitsrc, srect, c2rect.x, c2rect.y );
     }
}

static void
draw_osd( void )
{
     frame = bufs[current_buf];
     frame->Unlock( frame );

     osd_changed = vo_osd_changed( 0 );
     if (osd_dirty & osd_current) {
          if (use_spic) {
               if (flipping)
                    subframe->Clear( subframe, 0, 0, 0, 0 );
          } else {
               /* Clear black bars around the picture */
               subframe->FillRectangle( subframe,
                                        0, 0,
                                        sub_width, subrect->y );
               subframe->FillRectangle( subframe,
                                        0, subrect->y + subrect->h,
                                        sub_width, subrect->y );
               subframe->FillRectangle( subframe,
                                        0, subrect->y,
                                        subrect->x, subrect->h );
               subframe->FillRectangle( subframe,
                                        subrect->x + subrect->w, subrect->y,
                                        subrect->x, subrect->h );
          }
          osd_dirty &= ~osd_current;
     }