OSD text not displayed but boxes works fine !!! please help !!!

[phoenix-lee]

hi all,
    why does my osd instance only work fine with box ?

    i felt i've done all that i can, but texts can't get displayed ~

   i generated the instruction list, with 2 text-strings and 3 boxes according to PG10

   after loading the instruction list of ( 2 + 3  = 5) graphics elements,

   the 2 text strings didn't appear, but the 3 boxes were well displayed.

   my OSD configuration:

  Version = 6.0

   Screen Size= 1280 x 1024

   2 layers : 0 - video AXI4S, 1 - GPU

   Screen Size = 1280 x 1024

  Video Layer Size = GPU Layer SIze = 1024 x 768

 Color LUT = 16 color

  Text String RAM = 32 x 32 ( 32 strings of maximal 32 chars)

  Instruction RAM = 128 instructions ( each instruction is composed of 4 x 32-bit word )

  Font RAM (Char Set RAM) = 96

  ASCII offset = 32

  AXI clock = 100MHz, （AXI-Lite 100MHz clock）

  AXI4S clock = 200MHz （both video in and video out operates with the same 200MHz clock）

  Color Model = RGB, 8bit component ( i.e., 3 x 8 = 24 bit in total )

  particularly, i get a little confused about how to define a font array,

  what is the relationship between:

     i. Font RAM (Char Set RAM) size (in our case :96)

     ii. ASCII offset (in our case : 32)

     iii. ASCII table

 besides, is it possible to load a non-ASCII char set to the FONT ram ?

  how to load the font RAM into the OSD core ?

  Finally, does OSD_V6_0 still support text overlay ( or it only supports box overlay and no longer supports text overlay) ?

  below is my code concerning the loading of resources, anything wrong with it ??

/////////////////////////////////////////////////////////////////////////////////
/*
 * Color table definition
 * (16 32-bit-color LUT from OSD test example of Vivado 2014.3)
 */
Xuint32 OSD_COLOR_LUT[16]
=
{
    0x00000000, 0xa0a25f58, 0xa08080ff, 0xa0808010,
    0xa0ef5a51, 0x00000000, 0xa0465289, 0x00000000,
    0xa065ba6b, 0x00000000, 0xa09017c5, 0xa0a9c860,
    0xa0bc3198, 0xa010a5a9, 0xa0808080, 0xa0ada1ab
};

/*
 * Text table definition
 * (32 text LUT)
 */
char __attribute__ ((aligned (4))) OSD_TEXT_LUT[32][32]
=
{
    /*
     * digits
     */
    "0"    ,    /**< 00 >**/
    "1"    ,    /**< 01 >**/
    "2"    ,    /**< 02 >**/
    "3"    ,    /**< 03 >**/
    "4"    ,    /**< 04 >**/
    "5"    ,    /**< 05 >**/
    "6"    ,    /**< 06 >**/
    "7"    ,    /**< 07 >**/
    "8"    ,    /**< 08 >**/
    "9"    ,    /**< 09 >**/
    /*
     * signs
     */
    "+" ,       /**< 10 >**/
    "-" ,       /**< 11 >**/
    " " ,       /**< 12 >**/
    /*
     * algorithm type
     */
    "CEN"  ,    /**< 13 >**/
    "COR"  ,    /**< 14 >**/
    "FEA"  ,    /**< 15 >**/
    /*
     * background mode
     */
    "A"    ,    /**< 16 >**/
    "B"    ,    /**< 17 >**/
    /*
     * operating mode
     */
    "SRC"  ,    /**< 18 >**/
    "TRC"  ,    /**< 19 >**/
    /*
     * focal length
     */
    "f"    ,    /**< 20 >**/
    "mm"   ,    /**< 21 >**/
    /*
     * target position
     */
    "X="  ,     /**< 22 >**/
    "Y="  ,     /**< 23 >**/
    /*
     * reserved strings
     */
    "RSVD" ,    /**< 24 >**/
    "RSVD" ,    /**< 25 >**/
    "RSVD" ,    /**< 26 >**/
    "RSVD" ,    /**< 27 >**/
    "RSVD" ,    /**< 28 >**/
    "RSVD" ,    /**< 29 >**/
    "RSVD" ,    /**< 30 >**/
    "RSVD" ,    /**< 31 >**/
};

/*
 * Font definition (ASCII code table)
 * (96 8-1-8 font LUT from OSD test example of Vivado 2014.3)
 * starting from ' ' in the ASCII table
 */
unsigned char __attribute__ ((aligned (4))) OSD_FONT_LUT[96][8]
=
{
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // Space
    {0x00, 0x18, 0x18, 0x18, 0x18, 0x00, 0x18, 0x00},
    {0x00, 0x66, 0x66, 0x66, 0x00, 0x00, 0x00, 0x00},
    {0x00, 0x66, 0xFF, 0x66, 0x66, 0xFF, 0x66, 0x00},
    {0x18, 0x3E, 0x60, 0x3C, 0x06, 0x7C, 0x18, 0x00},
    {0x00, 0x66, 0x6C, 0x18, 0x30, 0x66, 0x46, 0x00},
    {0x1C, 0x36, 0x1C, 0x38, 0x6F, 0x66, 0x3B, 0x00},
    {0x00, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00},
    {0x00, 0x0E, 0x1C, 0x18, 0x18, 0x1C, 0x0E, 0x00},
    {0x00, 0x70, 0x38, 0x18, 0x18, 0x38, 0x70, 0x00},
    {0x00, 0x66, 0x3C, 0xFF, 0x3C, 0x66, 0x00, 0x00},
    {0x00, 0x18, 0x18, 0x7E, 0x18, 0x18, 0x00, 0x00},
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x30},
    {0x00, 0x00, 0x00, 0x7E, 0x00, 0x00, 0x00, 0x00},
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00},
    {0x00, 0x06, 0x0C, 0x18, 0x30, 0x60, 0x40, 0x00},
    {0x00, 0x3C, 0x66, 0x6E, 0x76, 0x66, 0x3C, 0x00},
    {0x00, 0x18, 0x38, 0x18, 0x18, 0x18, 0x7E, 0x00},
    {0x00, 0x3C, 0x66, 0x0C, 0x18, 0x30, 0x7E, 0x00},
    {0x00, 0x7E, 0x0C, 0x18, 0x0C, 0x66, 0x3C, 0x00},
    {0x00, 0x0C, 0x1C, 0x3C, 0x6C, 0x7E, 0x0C, 0x00},
    {0x00, 0x7E, 0x60, 0x7C, 0x06, 0x66, 0x3C, 0x00},
    {0x00, 0x3C, 0x60, 0x7C, 0x66, 0x66, 0x3C, 0x00},
    {0x00, 0x7E, 0x06, 0x0C, 0x18, 0x30, 0x30, 0x00},
    {0x00, 0x3C, 0x66, 0x3C, 0x66, 0x66, 0x3C, 0x00},
    {0x00, 0x3C, 0x66, 0x3E, 0x06, 0x0C, 0x38, 0x00},
    {0x00, 0x00, 0x18, 0x18, 0x00, 0x18, 0x18, 0x00},
    {0x00, 0x00, 0x18, 0x18, 0x00, 0x18, 0x18, 0x30},
    {0x06, 0x0C, 0x18, 0x30, 0x18, 0x0C, 0x06, 0x00},
    {0x00, 0x00, 0x7E, 0x00, 0x00, 0x7E, 0x00, 0x00},
    {0x60, 0x30, 0x18, 0x0C, 0x18, 0x30, 0x60, 0x00},
    {0x00, 0x3C, 0x66, 0x0C, 0x18, 0x00, 0x18, 0x00},

    {0x00, 0x3C, 0x66, 0x6E, 0x6E, 0x60, 0x3E, 0x00}, // @
    {0x00, 0x18, 0x3C, 0x66, 0x66, 0x7E, 0x66, 0x00}, // A
    {0x00, 0x7C, 0x66, 0x7C, 0x66, 0x66, 0x7C, 0x00},
    {0x00, 0x3C, 0x66, 0x60, 0x60, 0x66, 0x3C, 0x00},
    {0x00, 0x78, 0x6C, 0x66, 0x66, 0x6C, 0x78, 0x00},
    {0x00, 0x7E, 0x60, 0x7C, 0x60, 0x60, 0x7E, 0x00},
    {0x00, 0x7E, 0x60, 0x7C, 0x60, 0x60, 0x60, 0x00},
    {0x00, 0x3E, 0x60, 0x60, 0x6E, 0x66, 0x3E, 0x00},
    {0x00, 0x66, 0x66, 0x7E, 0x66, 0x66, 0x66, 0x00},
    {0x00, 0x7E, 0x18, 0x18, 0x18, 0x18, 0x7E, 0x00},
    {0x00, 0x06, 0x06, 0x06, 0x06, 0x66, 0x3C, 0x00},
    {0x00, 0x66, 0x6C, 0x78, 0x78, 0x6C, 0x66, 0x00},
    {0x00, 0x60, 0x60, 0x60, 0x60, 0x60, 0x7E, 0x00},
    {0x00, 0x63, 0x77, 0x7F, 0x6B, 0x63, 0x63, 0x00},
    {0x00, 0x66, 0x76, 0x7E, 0x7E, 0x6E, 0x66, 0x00},
    {0x00, 0x3C, 0x66, 0x66, 0x66, 0x66, 0x3C, 0x00},
    {0x00, 0x7C, 0x66, 0x66, 0x7C, 0x60, 0x60, 0x00},
    {0x00, 0x3C, 0x66, 0x66, 0x66, 0x6C, 0x36, 0x00},
    {0x00, 0x7C, 0x66, 0x66, 0x7C, 0x6C, 0x66, 0x00},
    {0x00, 0x3C, 0x60, 0x3C, 0x06, 0x06, 0x3C, 0x00},
    {0x00, 0x7E, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00},
    {0x00, 0x66, 0x66, 0x66, 0x66, 0x66, 0x7E, 0x00},
    {0x00, 0x66, 0x66, 0x66, 0x66, 0x3C, 0x18, 0x00},
    {0x00, 0x63, 0x63, 0x6B, 0x7F, 0x77, 0x63, 0x00},
    {0x00, 0x66, 0x66, 0x3C, 0x3C, 0x66, 0x66, 0x00},
    {0x00, 0x66, 0x66, 0x3C, 0x18, 0x18, 0x18, 0x00},
    {0x00, 0x7E, 0x0C, 0x18, 0x30, 0x60, 0x7E, 0x00},
    {0x00, 0x1E, 0x18, 0x18, 0x18, 0x18, 0x1E, 0x00},
    {0x00, 0x40, 0x60, 0x30, 0x18, 0x0C, 0x06, 0x00},
    {0x00, 0x78, 0x18, 0x18, 0x18, 0x18, 0x78, 0x00},
    {0x00, 0x08, 0x1C, 0x36, 0x63, 0x00, 0x00, 0x00},
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00},

    {0x40, 0x40, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00}, // `
    {0x00, 0x00, 0x3C, 0x06, 0x3E, 0x66, 0x3E, 0x00}, // a
    {0x00, 0x60, 0x60, 0x7C, 0x66, 0x66, 0x7C, 0x00},
    {0x00, 0x00, 0x3C, 0x60, 0x60, 0x60, 0x3C, 0x00},
    {0x00, 0x06, 0x06, 0x3E, 0x66, 0x66, 0x3E, 0x00},
    {0x00, 0x00, 0x3C, 0x66, 0x7E, 0x60, 0x3C, 0x00},
    {0x00, 0x0E, 0x18, 0x3E, 0x18, 0x18, 0x18, 0x00},
    {0x00, 0x00, 0x3E, 0x66, 0x66, 0x3E, 0x06, 0x7C},
    {0x00, 0x60, 0x60, 0x7C, 0x66, 0x66, 0x66, 0x00},
    {0x00, 0x18, 0x00, 0x38, 0x18, 0x18, 0x3C, 0x00},
    {0x00, 0x06, 0x00, 0x06, 0x06, 0x06, 0x06, 0x3C},
    {0x00, 0x60, 0x60, 0x6C, 0x78, 0x6C, 0x66, 0x00},
    {0x00, 0x38, 0x18, 0x18, 0x18, 0x18, 0x3C, 0x00},
    {0x00, 0x00, 0x66, 0x7F, 0x7F, 0x6B, 0x63, 0x00},
    {0x00, 0x00, 0x7C, 0x66, 0x66, 0x66, 0x66, 0x00},
    {0x00, 0x00, 0x3C, 0x66, 0x66, 0x66, 0x3C, 0x00},
    {0x00, 0x00, 0x7C, 0x66, 0x66, 0x7C, 0x60, 0x60},
    {0x00, 0x00, 0x3E, 0x66, 0x66, 0x3E, 0x06, 0x06},
    {0x00, 0x00, 0x7C, 0x66, 0x60, 0x60, 0x60, 0x00},
    {0x00, 0x00, 0x3E, 0x60, 0x3C, 0x06, 0x7C, 0x00},
    {0x00, 0x18, 0x7E, 0x18, 0x18, 0x18, 0x0E, 0x00},
    {0x00, 0x00, 0x66, 0x66, 0x66, 0x66, 0x3E, 0x00},
    {0x00, 0x00, 0x66, 0x66, 0x66, 0x3C, 0x18, 0x00},
    {0x00, 0x00, 0x63, 0x6B, 0x7F, 0x3E, 0x36, 0x00},
    {0x00, 0x00, 0x66, 0x3C, 0x18, 0x3C, 0x66, 0x00},
    {0x00, 0x00, 0x66, 0x66, 0x66, 0x3E, 0x0C, 0x78},
    {0x00, 0x00, 0x7E, 0x0C, 0x18, 0x30, 0x7E, 0x00},

    {0x14, 0x10, 0x10, 0x40, 0x10, 0x10, 0x14, 0x00}, // {
    {0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18},
    {0x50, 0x10, 0x10, 0x04, 0x10, 0x10, 0x50, 0x00}, // }
    {0x11, 0x11, 0x44, 0x44, 0x00, 0x00, 0x00, 0x00}, // ~
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // 127 DEL
};

          /**< load color LUT >**/
        XOSD_LoadColorLUTBank (
            &osd.inst,
            OSD_GPU_LAYER_ID,
            OSD_BANK_0,
            OSD_COLOR_LUT
            );

        /**< load font LUT >**/
        XOSD_LoadCharacterSetBank (
            &osd.inst,
            OSD_GPU_LAYER_ID,
            OSD_BANK_0,
            (u32 *)OSD_FONT_LUT
            );

        /**< load text LUT >**/
        XOSD_LoadTextBank (
            &osd.inst,
            OSD_GPU_LAYER_ID,
            OSD_BANK_0,
            (u32 *)OSD_TEXT_LUT
            );

[florentw]

Hi @phoenix-lee,

I guess you have solved this issue as per:

https://forums.xilinx.com/t5/Video/bug-commit-for-OSD-v6-0-INDEX-of-text-string-can-not-exceed-16/td-p/837795

If this is the case please close the topic by marking a reply as accepted solution (do a quick reply and mark it as solution).

Again, as per other topic, the OSD is deprecated and we are recommending users to use the video mixer instead.

Best Regards,

[florentw]

Hi @phoenix-lee,

If everything is clear for you, please close the topic by marking a reply as accepted solution.

Thanks and Regards,

[pierlum]

@phoenix-lee I have your same problem. Did you solve it? Thank you.