vo_gl.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 1,019 行 · 第 1/3 页

  }
  if (!gl_bufferptr)
    gl_bufferptr = MapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);
  mpi->planes[0] = gl_bufferptr;
  BindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
  if (mpi->planes[0] == NULL) {
    if (!err_shown)
      mp_msg(MSGT_VO, MSGL_ERR, "[gl] could not aquire buffer for dr\n"
                                "Expect a _major_ speed penalty\n");
    err_shown = 1;
    return VO_FALSE;
  }
  if (mpi->imgfmt == IMGFMT_YV12) {
    // YV12
    mpi->flags |= MP_IMGFLAG_COMMON_STRIDE | MP_IMGFLAG_COMMON_PLANE;
    mpi->stride[0] = mpi->width;
    mpi->planes[1] = mpi->planes[0] + mpi->stride[0] * mpi->height;
    mpi->stride[1] = mpi->width >> 1;
    mpi->planes[2] = mpi->planes[1] + mpi->stride[1] * (mpi->height >> 1);
    mpi->stride[2] = mpi->width >> 1;
  }
  mpi->flags |= MP_IMGFLAG_DIRECT;
  return VO_TRUE;
}

static uint32_t draw_image(mp_image_t *mpi) {
  int slice = slice_height;
  int stride[3] = {mpi->stride[0], mpi->stride[1], mpi->stride[2]};
  unsigned char *planes[3] = {mpi->planes[0], mpi->planes[1], mpi->planes[2]};
  if (mpi->flags & MP_IMGFLAG_DRAW_CALLBACK)
    return VO_TRUE;
  mpi_flipped = (stride[0] < 0);
  if (mpi->flags & MP_IMGFLAG_DIRECT) {
    intptr_t base = (intptr_t)planes[0];
    if (mpi_flipped)
      base += (mpi->h - 1) * stride[0];
    planes[0] -= base;
    planes[1] -= base;
    planes[2] -= base;
    BindBuffer(GL_PIXEL_UNPACK_BUFFER, gl_buffer);
    UnmapBuffer(GL_PIXEL_UNPACK_BUFFER);
    gl_bufferptr = NULL;
    slice = 0; // always "upload" full texture
  }
  glUploadTex(gl_target, gl_format, gl_type, planes[0], stride[0],
              mpi->x, mpi->y, mpi->w, mpi->h, slice);
  if (mpi->imgfmt == IMGFMT_YV12) {
    ActiveTexture(GL_TEXTURE1);
    glUploadTex(gl_target, gl_format, gl_type, planes[1], stride[1],
                mpi->x / 2, mpi->y / 2, mpi->w / 2, mpi->h / 2, slice);
    ActiveTexture(GL_TEXTURE2);
    glUploadTex(gl_target, gl_format, gl_type, planes[2], stride[2],
                mpi->x / 2, mpi->y / 2, mpi->w / 2, mpi->h / 2, slice);
    ActiveTexture(GL_TEXTURE0);
  }
  if (mpi->flags & MP_IMGFLAG_DIRECT)
    BindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
  return VO_TRUE;
}

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

static int
query_format(uint32_t format)
{
    int caps = VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW |
               VFCAP_FLIP |
               VFCAP_HWSCALE_UP | VFCAP_HWSCALE_DOWN | VFCAP_ACCEPT_STRIDE;
    if (use_osd)
      caps |= VFCAP_OSD | VFCAP_EOSD | (scaled_osd ? 0 : VFCAP_EOSD_UNSCALED);
    if ((format == IMGFMT_RGB24) || (format == IMGFMT_RGBA))
        return caps;
    if (use_yuv && format == IMGFMT_YV12)
        return caps;
    // HACK, otherwise we get only b&w with some filters (e.g. -vf eq)
    // ideally MPlayer should be fixed instead not to use Y800 when it has the choice
    if (!use_yuv && (format == IMGFMT_Y8 || format == IMGFMT_Y800))
        return 0;
    if (many_fmts &&
         glFindFormat(format, NULL, NULL, NULL, NULL))
        return caps;
    return 0;
}


static void
uninit(void)
{
  if ( !vo_config_count ) return;
  uninitGl();
  releaseGlContext(&gl_vinfo, &gl_context);
  if (custom_prog) free(custom_prog);
  custom_prog = NULL;
  if (custom_tex) free(custom_tex);
  custom_tex = NULL;
  vo_uninit();
}

static opt_t subopts[] = {
  {"manyfmts",     OPT_ARG_BOOL, &many_fmts,    NULL},
  {"osd",          OPT_ARG_BOOL, &use_osd,      NULL},
  {"scaled-osd",   OPT_ARG_BOOL, &scaled_osd,   NULL},
  {"aspect",       OPT_ARG_BOOL, &use_aspect,   NULL},
  {"slice-height", OPT_ARG_INT,  &slice_height, (opt_test_f)int_non_neg},
  {"rectangle",    OPT_ARG_INT,  &use_rectangle,(opt_test_f)int_non_neg},
  {"yuv",          OPT_ARG_INT,  &use_yuv,      (opt_test_f)int_non_neg},
  {"lscale",       OPT_ARG_INT,  &lscale,       (opt_test_f)int_non_neg},
  {"cscale",       OPT_ARG_INT,  &cscale,       (opt_test_f)int_non_neg},
  {"glfinish",     OPT_ARG_BOOL, &use_glFinish, NULL},
  {"swapinterval", OPT_ARG_INT,  &swap_interval,NULL},
  {"customprog",   OPT_ARG_MSTRZ,&custom_prog,  NULL},
  {"customtex",    OPT_ARG_MSTRZ,&custom_tex,   NULL},
  {"customtlin",   OPT_ARG_BOOL, &custom_tlin,  NULL},
  {"customtrect",  OPT_ARG_BOOL, &custom_trect, NULL},
  {"osdcolor",     OPT_ARG_INT,  &osd_color,    NULL},
  {NULL}
};

static int preinit(const char *arg)
{
    // set defaults
    many_fmts = 1;
    use_osd = 1;
    scaled_osd = 0;
    use_aspect = 1;
    use_yuv = 0;
    lscale = 0;
    cscale = 0;
    use_rectangle = 0;
    use_glFinish = 0;
    swap_interval = 1;
    slice_height = 0;
    custom_prog = NULL;
    custom_tex = NULL;
    custom_tlin = 1;
    custom_trect = 0;
    osd_color = 0xffffff;
    if (subopt_parse(arg, subopts) != 0) {
      mp_msg(MSGT_VO, MSGL_FATAL,
              "\n-vo gl command line help:\n"
              "Example: mplayer -vo gl:slice-height=4\n"
              "\nOptions:\n"
              "  nomanyfmts\n"
              "    Disable extended color formats for OpenGL 1.2 and later\n"
              "  slice-height=<0-...>\n"
              "    Slice size for texture transfer, 0 for whole image\n"
              "  noosd\n"
              "    Do not use OpenGL OSD code\n"
              "  noaspect\n"
              "    Do not do aspect scaling\n"
              "  rectangle=<0,1,2>\n"
              "    0: use power-of-two textures\n"
              "    1: use texture_rectangle\n"
              "    2: use texture_non_power_of_two\n"
              "  glfinish\n"
              "    Call glFinish() before swapping buffers\n"
              "  swapinterval=<n>\n"
              "    Interval in displayed frames between to buffer swaps.\n"
              "    1 is equivalent to enable VSYNC, 0 to disable VSYNC.\n"
              "    Requires GLX_SGI_swap_control support to work.\n"
              "  yuv=<n>\n"
              "    0: use software YUV to RGB conversion.\n"
              "    1: use register combiners (nVidia only, for older cards).\n"
              "    2: use fragment program.\n"
              "    3: use fragment program with gamma correction.\n"
              "    4: use fragment program with gamma correction via lookup.\n"
              "    5: use ATI-specific method (for older cards).\n"
              "    6: use lookup via 3D texture.\n"
              "  lscale=<n>\n"
              "    0: use standard bilinear scaling for luma.\n"
              "    1: use improved bicubic scaling for luma.\n"
              "    2: use cubic in X, linear in Y direction scaling for luma.\n"
              "  cscale=<n>\n"
              "    as lscale but for chroma (2x slower with little visible effect).\n"
              "  customprog=<filename>\n"
              "    use a custom YUV conversion program\n"
              "  customtex=<filename>\n"
              "    use a custom YUV conversion lookup texture\n"
              "  nocustomtlin\n"
              "    use GL_NEAREST scaling for customtex texture\n"
              "  customtrect\n"
              "    use texture_rectangle for customtex texture\n"
              "  osdcolor=<0xRRGGBB>\n"
              "    use the given color for the OSD\n"
              "\n" );
      return -1;
    }
    if (use_rectangle == 1)
      gl_target = GL_TEXTURE_RECTANGLE;
    else
      gl_target = GL_TEXTURE_2D;
    yuvconvtype = use_yuv | lscale << YUV_LUM_SCALER_SHIFT | cscale << YUV_CHROM_SCALER_SHIFT;
    if (many_fmts)
      mp_msg (MSGT_VO, MSGL_INFO, "[gl] using extended formats. "
               "Use -vo gl:nomanyfmts if playback fails.\n");
    mp_msg (MSGT_VO, MSGL_V, "[gl] Using %d as slice height "
             "(0 means image height).\n", slice_height);
    if( !vo_init() ) return -1; // Can't open X11

    return 0;
}

static int control(uint32_t request, void *data, ...)
{
  switch (request) {
  case VOCTRL_PAUSE: return (int_pause=1);
  case VOCTRL_RESUME: return (int_pause=0);
  case VOCTRL_QUERY_FORMAT:
    return query_format(*((uint32_t*)data));
  case VOCTRL_GET_IMAGE:
    return get_image(data);
  case VOCTRL_DRAW_IMAGE:
    return draw_image(data);
  case VOCTRL_DRAW_EOSD:
    if (!data)
      return VO_FALSE;
    genEOSD(data);
    return VO_TRUE;
  case VOCTRL_GET_EOSD_RES:
    {
      mp_eosd_res_t *r = data;
      r->mt = r->mb = r->ml = r->mr = 0;
      if (scaled_osd) {r->w = image_width; r->h = image_height;}
      else if (vo_fs) {
        r->w = vo_screenwidth; r->h = vo_screenheight;
        r->ml = r->mr = ass_border_x > 0 ? ass_border_x : 0;
        r->mt = r->mb = ass_border_y > 0 ? ass_border_y : 0;
      } else {
        r->w = vo_dwidth; r->h = vo_dheight;
      }
    }
    return VO_TRUE;
  case VOCTRL_GUISUPPORT:
    return VO_TRUE;
  case VOCTRL_ONTOP:
    vo_ontop();
    return VO_TRUE;
  case VOCTRL_FULLSCREEN:
    vo_fullscreen();
    resize(vo_dwidth, vo_dheight);
    return VO_TRUE;
#ifdef GL_WIN32
  case VOCTRL_BORDER:
    vo_w32_border();
    return VO_TRUE;
#endif
  case VOCTRL_GET_PANSCAN:
    if (!use_aspect) return VO_NOTIMPL;
    return VO_TRUE;
  case VOCTRL_SET_PANSCAN:
    if (!use_aspect) return VO_NOTIMPL;
    resize (vo_dwidth, vo_dheight);
    return VO_TRUE;
  case VOCTRL_GET_EQUALIZER:
    if (image_format == IMGFMT_YV12) {
      va_list va;
      int *value;
      va_start(va, data);
      value = va_arg(va, int *);
      va_end(va);
      if (strcasecmp(data, "brightness") == 0) {
        *value = eq_bri;
        if (use_yuv == YUV_CONVERSION_COMBINERS) break; // not supported
      } else if (strcasecmp(data, "contrast") == 0) {
        *value = eq_cont;
        if (use_yuv == YUV_CONVERSION_COMBINERS) break; // not supported
      } else if (strcasecmp(data, "saturation") == 0) {
        *value = eq_sat;
      } else if (strcasecmp(data, "hue") == 0) {
        *value = eq_hue;
      } else if (strcasecmp(data, "gamma") ==  0) {
        *value = eq_rgamma;
        if (use_yuv == YUV_CONVERSION_COMBINERS ||
            use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
      } else if (strcasecmp(data, "red_gamma") ==  0) {
        *value = eq_rgamma;
        if (use_yuv == YUV_CONVERSION_COMBINERS ||
            use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
      } else if (strcasecmp(data, "green_gamma") ==  0) {
        *value = eq_ggamma;
        if (use_yuv == YUV_CONVERSION_COMBINERS ||
            use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
      } else if (strcasecmp(data, "blue_gamma") ==  0) {
        *value = eq_bgamma;
        if (use_yuv == YUV_CONVERSION_COMBINERS ||
            use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
      }
      return VO_TRUE;
    }
    break;
  case VOCTRL_SET_EQUALIZER:
    if (image_format == IMGFMT_YV12) {
      va_list va;
      int value;
      va_start(va, data);
      value = va_arg(va, int);
      va_end(va);
      if (strcasecmp(data, "brightness") == 0) {
        eq_bri = value;
        if (use_yuv == YUV_CONVERSION_COMBINERS) break; // not supported
      } else if (strcasecmp(data, "contrast") == 0) {
        eq_cont = value;
        if (use_yuv == YUV_CONVERSION_COMBINERS) break; // not supported
      } else if (strcasecmp(data, "saturation") == 0) {
        eq_sat = value;
      } else if (strcasecmp(data, "hue") == 0) {
        eq_hue = value;
      } else if (strcasecmp(data, "gamma") ==  0) {
        eq_rgamma = eq_ggamma = eq_bgamma = value;
        if (use_yuv == YUV_CONVERSION_COMBINERS ||
            use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
      } else if (strcasecmp(data, "red_gamma") ==  0) {
        eq_rgamma = value;
        if (use_yuv == YUV_CONVERSION_COMBINERS ||
            use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
      } else if (strcasecmp(data, "green_gamma") ==  0) {
        eq_ggamma = value;
        if (use_yuv == YUV_CONVERSION_COMBINERS ||
            use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
      } else if (strcasecmp(data, "blue_gamma") ==  0) {
        eq_bgamma = value;
        if (use_yuv == YUV_CONVERSION_COMBINERS ||
            use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
      }
      update_yuvconv();
      return VO_TRUE;
    }
    break;
  case VOCTRL_UPDATE_SCREENINFO:
    update_xinerama_info();
    return VO_TRUE;
  }
  return VO_NOTIMPL;
}