vo_gl2.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 925 行 · 第 1/2 页

#else

static int choose_glx_visual(Display *dpy, int scr, XVisualInfo *res_vi)
{
  XVisualInfo template, *vi_list;
  int vi_num, i, best_i, best_weight;

  template.screen = scr;
  vi_list = XGetVisualInfo(dpy, VisualScreenMask, &template, &vi_num);
  if (!vi_list) return -1;
  best_weight = 1000000; best_i=0;
  for (i = 0; i < vi_num; i++) {
    int val, res, w = 0;
    /* of course, the visual must support OpenGL rendering... */
    res = glXGetConfig(dpy, vi_list + i, GLX_USE_GL, &val);
    if (res || val == False) continue;
    /* also it must be doublebuffered ... */
    res = glXGetConfig(dpy, vi_list + i, GLX_DOUBLEBUFFER, &val);
    if (res || val == False) continue;
    /* furthermore it must be RGBA (not color indexed) ... */
    res = glXGetConfig(dpy, vi_list + i, GLX_RGBA, &val);
    if (res || val == False) continue;
    /* prefer less depth buffer size, */
    res = glXGetConfig(dpy, vi_list + i, GLX_DEPTH_SIZE, &val);
    if (res) continue;
    w += val*2;
    /* stencil buffer size */
    res = glXGetConfig(dpy, vi_list + i, GLX_STENCIL_SIZE, &val);
    if (res) continue;
    w += val*2;
    /* and colorbuffer alpha size */
    res = glXGetConfig(dpy, vi_list + i, GLX_ALPHA_SIZE, &val);
    if (res) continue;
    w += val;
    /* and finally, prefer DirectColor-ed visuals to allow color corrections */
    if (vi_list[i].class != DirectColor) w += 100;

    // avoid bad-looking visual with less that 8bit per color
    res = glXGetConfig(dpy, vi_list + i, GLX_RED_SIZE, &val);
    if (res) continue;
    if (val < 8) w += 50;
    res = glXGetConfig(dpy, vi_list + i, GLX_GREEN_SIZE, &val);
    if (res) continue;
    if (val < 8) w += 70;
    res = glXGetConfig(dpy, vi_list + i, GLX_BLUE_SIZE, &val);
    if (res) continue;
    if (val < 8) w += 50;

    if (w < best_weight) {
      best_weight = w;
      best_i = i;
    }
  }
  if (best_weight < 1000000) *res_vi = vi_list[best_i];
  XFree(vi_list);
  return (best_weight < 1000000) ? 0 : -1;
}

static int config_glx(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format) {
  XVisualInfo *vinfo, vinfo_buf;
  if (WinID >= 0) {
    vo_window = WinID ? (Window)WinID : mRootWin;
    vo_x11_selectinput_witherr(mDisplay, vo_window,
             StructureNotifyMask | KeyPressMask | PointerMotionMask |
             ButtonPressMask | ButtonReleaseMask | ExposureMask);
    return 0;
  }
    vinfo = choose_glx_visual(mDisplay,mScreen,&vinfo_buf) < 0 ? NULL : &vinfo_buf;
    if (vinfo == NULL) {
      mp_msg(MSGT_VO, MSGL_FATAL, "[gl2] no GLX support present\n");
      return -1;
    }

  vo_x11_create_vo_window(vinfo, vo_dx, vo_dy, d_width, d_height,
          flags, vo_x11_create_colormap(vinfo), "gl2", title);

  return 0;
}
#endif

#ifdef HAVE_NEW_GUI
static int config_glx_gui(uint32_t d_width, uint32_t d_height) {
  guiGetEvent( guiSetShVideo,0 ); // the GUI will set up / resize the window
  return 0;
}
#endif

static int initGl(uint32_t d_width, uint32_t d_height)
{
  fragprog = lookupTex = 0;
  if (initTextures() < 0)
    return -1;

  glDisable(GL_BLEND);
  glDisable(GL_DEPTH_TEST);
  glDepthMask(GL_FALSE);
  glDisable(GL_CULL_FACE);
  glEnable (GL_TEXTURE_2D);
  if (image_format == IMGFMT_YV12) {
    switch (use_yuv) {
      case YUV_CONVERSION_FRAGMENT_LOOKUP:
        glGenTextures(1, &lookupTex);
        ActiveTexture(GL_TEXTURE3);
        glBindTexture(GL_TEXTURE_2D, lookupTex);
        ActiveTexture(GL_TEXTURE0);
        glBindTexture(GL_TEXTURE_2D, 0);
      case YUV_CONVERSION_FRAGMENT_POW:
      case YUV_CONVERSION_FRAGMENT:
        if (!GenPrograms || !BindProgram) {
          mp_msg(MSGT_VO, MSGL_ERR, "[gl] fragment program functions missing!\n");
          break;
        }
        GenPrograms(1, &fragprog);
        BindProgram(GL_FRAGMENT_PROGRAM, fragprog);
        break;
    }
    glSetupYUVConversion(GL_TEXTURE_2D, use_yuv, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 1.0,
                         texture_width, texture_height);
  }

  gl_set_antialias(0);
  gl_set_bilinear(1);

  mp_msg(MSGT_VO, MSGL_V, "[gl2] Using image_bpp=%d, image_bytes=%d, \n\tgl_bitmap_format=%s, gl_bitmap_type=%s, \n\trgb_size=%d (%d,%d,%d), a_sz=%d, \n\tgl_internal_format=%s\n",
        image_bpp, image_bytes,
        glValName(gl_bitmap_format), glValName(gl_bitmap_type),
        rgb_sz, r_sz, g_sz, b_sz, a_sz, glValName(gl_internal_format));

  resize(&d_width, &d_height);

  glClearColor( 0.0f,0.0f,0.0f,0.0f );
  glClear( GL_COLOR_BUFFER_BIT );

  drawTextureDisplay ();

  return 0;
}

/* connect to server, create and map window,
 * allocate colors and (shared) memory
 */
static int
config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
{
  const unsigned char * glVersion;

  image_height = height;
  image_width = width;
  image_format = format;

  int_pause = 0;

#ifdef HAVE_NEW_GUI
  if (use_gui) {
    if (config_glx_gui(d_width, d_height) == -1)
      return -1;
  }
#ifndef GL_WIN32
  else
#endif
#endif
#ifdef GL_WIN32
  if (config_w32(width, height, d_width, d_height, flags, title, format) == -1)
#else
  if (config_glx(width, height, d_width, d_height, flags, title, format) == -1)
#endif
    return -1;

  setGlWindow(&gl_vinfo, &gl_context, vo_window);

  glVersion = glGetString(GL_VERSION);

  mp_msg(MSGT_VO, MSGL_V, "[gl2] OpenGL Driver Information:\n");
  mp_msg(MSGT_VO, MSGL_V, "\tvendor: %s,\n\trenderer %s,\n\tversion %s\n",
         glGetString(GL_VENDOR), glGetString(GL_RENDERER), glVersion);

  if(glVersion[0]>'1' || (glVersion[0]=='1' && glVersion[2]>='2') )
    isGL12 = GL_TRUE;
  else
    isGL12 = GL_FALSE;

  if(isGL12) {
    mp_msg(MSGT_VO, MSGL_INFO, "[gl2] You have OpenGL >= 1.2 capable drivers, GOOD (16bpp and BGR is ok!)\n");
  } else {
    mp_msg(MSGT_VO, MSGL_INFO, "[gl2] You have OpenGL < 1.2 drivers, BAD (16bpp and BGR may be damaged!)\n");
  }

  glFindFormat(format, &image_bpp, &gl_internal_format, &gl_bitmap_format, &gl_bitmap_type);

  image_bytes=(image_bpp+7)/8;

  draw_alpha_fnc=draw_alpha_null;

  switch(image_bpp) {
    case 15:
      draw_alpha_fnc=draw_alpha_15; break;
    case 16:
      draw_alpha_fnc=draw_alpha_16; break;
    case 24:
      draw_alpha_fnc=draw_alpha_24; break;
    case 32:
      draw_alpha_fnc=draw_alpha_32; break;
  }

  if (initGl(vo_dwidth, vo_dheight) == -1)
    return -1;
#ifndef GL_WIN32
  if (vo_ontop) vo_x11_setlayer(mDisplay,vo_window, vo_ontop);
#endif

  return 0;
}

static int gl_handlekey(int key)
{
  if(key=='a'||key=='A') {
    gl_set_antialias(!gl_antialias);
    return 0;
  } else if(key=='b'||key=='B') {
    gl_set_bilinear(-1);
    return 0;
  }
  return 1;
}

static void check_events(void)
{
  int e;
#ifndef GL_WIN32
  XEvent         Event;
  char           buf[100];
  KeySym         keySym;
  int            key;
  static XComposeStatus stat;

  while ( XPending( mDisplay ) ) {
    XNextEvent( mDisplay,&Event );
    if( Event.type == KeyPress ) {
      XLookupString( &Event.xkey,buf,sizeof(buf),&keySym,&stat );
      key = (keySym&0xff00) != 0 ? (keySym&0x00ff) + 256 : keySym;
      if(gl_handlekey(key))
        XPutBackEvent(mDisplay, &Event);
      break;
    } else {
      XPutBackEvent(mDisplay, &Event);
      break;
    }
  }
#endif
  e=vo_check_events();
  if(e&VO_EVENT_RESIZE) resize(&vo_dwidth, &vo_dheight);
  if(e&VO_EVENT_EXPOSE && int_pause) flip_page();
}

static void draw_osd(void)
{
  if (ImageData)
    vo_draw_text(image_width,image_height,draw_alpha_fnc);
}

static void
flip_page(void)
{
  drawTextureDisplay();

//  glFlush();
  if (use_glFinish)
  glFinish();
  swapGlBuffers();

  if (vo_fs) // Avoid flickering borders in fullscreen mode
    glClear (GL_COLOR_BUFFER_BIT);
}

static int draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
{
  uint8_t *yptr = src[0], *uptr = src[1], *vptr = src[2];
  int ystride = stride[0], ustride = stride[1], vstride = stride[2];
  int rem_h = h;
  struct TexSquare *texline = &texgrid[y / texture_height * texnumx];
  int subtex_y = y % texture_width;
  while (rem_h > 0) {
    int rem_w = w;
    struct TexSquare *tsq = &texline[x / texture_width];
    int subtex_x = x % texture_height;
    int subtex_h = rem_h;
    if (subtex_y + subtex_h > texture_height)
      subtex_h = texture_height - subtex_y;
    while (rem_w > 0) {
      int subtex_w = rem_w;
      if (subtex_x + subtex_w > texture_width)
        subtex_w = texture_width - subtex_x;
      ActiveTexture(GL_TEXTURE0);
      glBindTexture(GL_TEXTURE_2D, tsq->texobj);
      glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
                  yptr, ystride, subtex_x, subtex_y,
                  subtex_w, subtex_h, 0);
      ActiveTexture(GL_TEXTURE1);
      glBindTexture(GL_TEXTURE_2D, tsq->uvtexobjs[0]);
      glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
                  uptr, ustride, subtex_x / 2, subtex_y / 2,
                  subtex_w / 2, subtex_h / 2, 0);
      ActiveTexture(GL_TEXTURE2);
      glBindTexture(GL_TEXTURE_2D, tsq->uvtexobjs[1]);
      glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
                  vptr, vstride, subtex_x / 2, subtex_y / 2,
                  subtex_w / 2, subtex_h / 2, 0);
      subtex_x = 0;
      yptr += subtex_w;
      uptr += subtex_w / 2;
      vptr += subtex_w / 2;
      tsq++;
      rem_w -= subtex_w;
    }
    subtex_y = 0;
    yptr += subtex_h * ystride - w;
    uptr += subtex_h / 2 * ustride - w / 2;
    vptr += subtex_h / 2 * vstride - w / 2;
    texline += texnumx;
    rem_h -= subtex_h;
  }
  ActiveTexture(GL_TEXTURE0);
    return 0;
}

static int
draw_frame(uint8_t *src[])
{
  if (image_format == IMGFMT_YV12) {
    mp_msg(MSGT_VO, MSGL_ERR, "[gl2] error: draw_frame called for YV12!\n");
    return 0;
  }
  ImageData=(unsigned char *)src[0];
  resetTexturePointers(ImageData);
  texdirty = 1;
  return 0;
}

static int
query_format(uint32_t format)
{
  switch(format) {
    case IMGFMT_YV12:
      if (use_yuv)
        return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD |
               VFCAP_HWSCALE_UP | VFCAP_HWSCALE_DOWN | VFCAP_ACCEPT_STRIDE;
      break;
#ifdef SYS_DARWIN
    case IMGFMT_RGB32:
#else
    case IMGFMT_RGB24:
    case IMGFMT_BGR24:
//    case IMGFMT_RGB32:
//    case IMGFMT_BGR32:
#endif
        return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD;
  }
  return 0;
}


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

static opt_t subopts[] = {
  {"yuv",          OPT_ARG_INT,  &use_yuv,      (opt_test_f)int_non_neg},
  {"glfinish",     OPT_ARG_BOOL, &use_glFinish, NULL},
  {NULL}
};

static int preinit(const char *arg)
{
  // set defaults
  use_yuv = 0;
  use_glFinish = 1;
  if (subopt_parse(arg, subopts) != 0) {
    mp_msg(MSGT_VO, MSGL_FATAL,
            "\n-vo gl2 command line help:\n"
            "Example: mplayer -vo gl2:noglfinish\n"
            "\nOptions:\n"
            "  noglfinish\n"
            "    Do not call glFinish() before swapping buffers\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"
            "\n" );
    return -1;
  }
    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_GUISUPPORT:
      return VO_TRUE;
    case VOCTRL_ONTOP:
      vo_ontop();
      return VO_TRUE;
    case VOCTRL_FULLSCREEN:
      vo_fullscreen();
      if (setGlWindow(&gl_vinfo, &gl_context, vo_window) == SET_WINDOW_REINIT)
        initGl(vo_dwidth, vo_dheight);
      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:
      return VO_TRUE;
    case VOCTRL_SET_PANSCAN:
      resize (&vo_dwidth, &vo_dheight);
      return VO_TRUE;
#ifndef GL_WIN32
    case VOCTRL_SET_EQUALIZER:
    {
      va_list ap;
      int value;

      va_start(ap, data);
      value = va_arg(ap, int);
      va_end(ap);
      return vo_x11_set_equalizer(data, value);
    }
    case VOCTRL_GET_EQUALIZER:
    {
      va_list ap;
      int *value;

      va_start(ap, data);
      value = va_arg(ap, int *);
      va_end(ap);
      return vo_x11_get_equalizer(data, value);
    }
#endif
    case VOCTRL_UPDATE_SCREENINFO:
      update_xinerama_info();
      return VO_TRUE;
  }
  return VO_NOTIMPL;
}