include/linux/dvb/osd.h

   1 /*
   2  * osd.h
   3  *
   4  * Copyright (C) 2001 Ralph  Metzler <ralph@convergence.de>
   5  *                  & Marcus Metzler <marcus@convergence.de>
   6                       for convergence integrated media GmbH
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Lesser Public License
  10  * as published by the Free Software Foundation; either version 2.1
  11  * of the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21  *
  22  */
  23
  24 #ifndef _DVBOSD_H_
  25 #define _DVBOSD_H_
  26
  27 #include <linux/compiler.h>
  28
  29 typedef enum {
  30   // All functions return -2 on "not open"
  31   OSD_Close=1,    // ()
  32   // Disables OSD and releases the buffers
  33   // returns 0 on success
  34   OSD_Open,       // (x0,y0,x1,y1,BitPerPixel[2/4/8](color&0x0F),mix[0..15](color&0xF0))
  35   // Opens OSD with this size and bit depth
  36   // returns 0 on success, -1 on DRAM allocation error, -2 on "already open"
  37   OSD_Show,       // ()
  38   // enables OSD mode
  39   // returns 0 on success
  40   OSD_Hide,       // ()
  41   // disables OSD mode
  42   // returns 0 on success
  43   OSD_Clear,      // ()
  44   // Sets all pixel to color 0
  45   // returns 0 on success
  46   OSD_Fill,       // (color)
  47   // Sets all pixel to color <col>
  48   // returns 0 on success
  49   OSD_SetColor,   // (color,R{x0},G{y0},B{x1},opacity{y1})
  50   // set palette entry <num> to <r,g,b>, <mix> and <trans> apply
  51   // R,G,B: 0..255
  52   // R=Red, G=Green, B=Blue
  53   // opacity=0:      pixel opacity 0% (only video pixel shows)
  54   // opacity=1..254: pixel opacity as specified in header
  55   // opacity=255:    pixel opacity 100% (only OSD pixel shows)
  56   // returns 0 on success, -1 on error
  57   OSD_SetPalette, // (firstcolor{color},lastcolor{x0},data)
  58   // Set a number of entries in the palette
  59   // sets the entries "firstcolor" through "lastcolor" from the array "data"
  60   // data has 4 byte for each color:
  61   // R,G,B, and a opacity value: 0->transparent, 1..254->mix, 255->pixel
  62   OSD_SetTrans,   // (transparency{color})
  63   // Sets transparency of mixed pixel (0..15)
  64   // returns 0 on success
  65   OSD_SetPixel,   // (x0,y0,color)
  66   // sets pixel <x>,<y> to color number <col>
  67   // returns 0 on success, -1 on error
  68   OSD_GetPixel,   // (x0,y0)
  69   // returns color number of pixel <x>,<y>,  or -1
  70   OSD_SetRow,     // (x0,y0,x1,data)
  71   // fills pixels x0,y through  x1,y with the content of data[]
  72   // returns 0 on success, -1 on clipping all pixel (no pixel drawn)
  73   OSD_SetBlock,   // (x0,y0,x1,y1,increment{color},data)
  74   // fills pixels x0,y0 through  x1,y1 with the content of data[]
  75   // inc contains the width of one line in the data block,
  76   // inc<=0 uses blockwidth as linewidth
  77   // returns 0 on success, -1 on clipping all pixel
  78   OSD_FillRow,    // (x0,y0,x1,color)
  79   // fills pixels x0,y through  x1,y with the color <col>
  80   // returns 0 on success, -1 on clipping all pixel
  81   OSD_FillBlock,  // (x0,y0,x1,y1,color)
  82   // fills pixels x0,y0 through  x1,y1 with the color <col>
  83   // returns 0 on success, -1 on clipping all pixel
  84   OSD_Line,       // (x0,y0,x1,y1,color)
  85   // draw a line from x0,y0 to x1,y1 with the color <col>
  86   // returns 0 on success
  87   OSD_Query,      // (x0,y0,x1,y1,xasp{color}}), yasp=11
  88   // fills parameters with the picture dimensions and the pixel aspect ratio
  89   // returns 0 on success
  90   OSD_Test,       // ()
  91   // draws a test picture. for debugging purposes only
  92   // returns 0 on success
  93 // TODO: remove "test" in final version
  94   OSD_Text,       // (x0,y0,size,color,text)
  95   OSD_SetWindow, //  (x0) set window with number 0<x0<8 as current
  96   OSD_MoveWindow, //  move current window to (x0, y0)
  97 } OSD_Command;
  98
  99 typedef struct osd_cmd_s {
 100         OSD_Command cmd;
 101         int x0;
 102         int y0;
 103         int x1;
 104         int y1;
 105         int color;
 106         void __user *data;
 107 } osd_cmd_t;
 108
 109
 110 #define OSD_SEND_CMD       _IOW('o', 160, osd_cmd_t)
 111
 112 #endif
 113