📄 cc_tw88.c
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//=================================================================================================
//
// CC with TW8804
//
//=================================================================================================
//
// Proper order of CC Data
// Pop-On mode:
// Resume Caption Loading( to select pop-on style).
// Erase Nondisplayed Memory(optional)
// Preamble Command( to set row, indent, attr)
// text
// Preamble Command( to set row, indent, attr for next element)
// text,,,
// Erase Displayed Memory(optional)
// End Of Caption(to display the caption just received)
//
// Roll-Up mode:
// RollUp captions,2rows or RU3 or RU4
// Carrige Return
// PAC
// text
// RollUp captions,2rows or RU3 or RU4
// ...
//
// Paint-On mode:
// Resume Direct Captioning
// PAC
// text
// PAC
// text or Delete to End of row
// (pause, or other data)
// Resume Direct Captioning
// PAC
// text
// Erase Displayed Memory
//
//
// LJY120301 .Support ROLL-UP mode.
//
// ljy01xx04 (with ...CC_ comment)
// .Fix an horizontal indentation bug.
// .Fix to support paused 'PaintOn' mode.
// .Improve to support extended char set with OSD FONT RAM.
// .Improve debugging messages to several levels.
// .Give flexability to use OSD window (round).
// .Improve to erase incorrect or unneeded CC display
// .Try to improve Y position to mactch accurately, but need to restructure.
//========================================================================
/*
-- EDS
----------------------------------------------------------------------
----------------------------------------------------------------------
0000 0001
.
.
.
0000 ffff
-- CC
----------------------------------------------------------------------
CC_control_byte1, CC_control_byte2
----------------------------------------------------------------------
0001 C000 0010 xxxx(>=0x20) ................Optional Attribute code ** need backspace
----------------------------------------------------------------------
0001 C000 010x xxxx(>=0x40) ................Preamble(row11, attr)
----------------------------------------------------------------------
0001 C001 0010 xxxx ............................Midrow
0001 C001 0011 xxxx ....................................Special char.
0001 C001 010x xxxx ..........................Preamble(row1, attr)
011x xxxx ........................Preamble(row2, attr)
----------------------------------------------------------------------
0001 C010 001x xxxx ........................Extended Char
0001 C010 010x xxxx ........................Preamble(row3, attr)
011x xxxx ........................Preamble(row4, attr)
----------------------------------------------------------------------
0001 C011 001x xxxx ........................Extended Char
0001 C011 010x xxxx ........................Preamble(row12, attr)
011x xxxx ........................Preamble(row13, attr)
----------------------------------------------------------------------
0001 C10F 0010 xxxx ............................Misc.
0001 C100 010x xxxx ........................Preamble(row14, attr)
011x xxxx ........................Preamble(row15, attr)
----------------------------------------------------------------------
0001 C101 010x xxxx ........................Preamble(row5, attr)
011x xxxx ........................Preamble(row6, attr)
----------------------------------------------------------------------
0001 C110 010x xxxx ........................Preamble(row7, attr)
011x xxxx ........................Preamble(row8, attr)
----------------------------------------------------------------------
0001 C111 0010 xxxx ............................Misc.
0001 C111 0010 0100 ........................Optional Closed Group Extension
~1010 ........................Optional Closed Group Extension
0001 C111 0010 1101 ........................Optional attribute code ** need backspace
1110 ........................Optional attribute code(black) ** need backspace
1111 ........................Optional attribute code(black underline) ** need backspace
0001 C111 010x xxxx ........................Preamble(row9, attr)
011x xxxx ........................Preamble(row10, attr)
----------------------------------------------------------------------
*/
//=================================================================================================
#include "panel.h"
#if (defined SXGA)
#define CC_ZOOM WINZOOMx3
#define CC_HSPACE 0
#define CC_VSPACE 1
#elif (defined XGA) || (defined WXGA)
#define CC_ZOOM WINZOOMx2
#define CC_HSPACE 0//2
#define CC_VSPACE 2
#elif (defined SVGA) || (defined WSVGA)
#define CC_ZOOM WINZOOMx2
#define CC_HSPACE 0
#define CC_VSPACE 0
#elif (defined VGA) || (defined WVGA)
#define CC_ZOOM WINZOOMx1
#define CC_HSPACE 1//3
#define CC_VSPACE 5
#else
#define CC_ZOOM WINZOOMx1
#define CC_HSPACE 1//3
#define CC_VSPACE 4
#endif
#define CC_FONT_WIDTH (FONT_WIDTH_TW88*CC_ZOOM + CC_HSPACE*CC_ZOOM)
#define CC_FONT_HEIGHT (FONT_HEIGHT_TW88*CC_ZOOM + CC_VSPACE*2*CC_ZOOM)
#define CC_HBORDER CC_FONT_WIDTH/CC_ZOOM
#define CC_X_ORG (PHR_ - CC_FONT_WIDTH*34) / 2
#define CC_Y_ORG (PVR_ - CC_FONT_HEIGHT*15) / 2
#ifdef SVGA
#undef CC_HBORDER
#undef CC_Y_ORG
#undef CC_X_ORG
#define CC_HBORDER 4
#define CC_Y_ORG CC_FONT_HEIGHT
#define CC_X_ORG 8
#endif
#ifdef WSVGA
#undef CC_Y_ORG
#define CC_Y_ORG CC_FONT_HEIGHT
#endif
//=================================================================================================
#define HIGHBYTE_DATA ( (*cc_status) & 0x01 )
#ifdef DEBUG
#define MAX_CCEDS_BUF 10
#else
#define MAX_CCEDS_BUF 10
#endif
static DATA BYTE DebugTypeCCEDS=BASIC;
static PDATA BYTE CCEDSStatusBuf[MAX_CCEDS_BUF];
PDATA BYTE CCEDSDataBuf[MAX_CCEDS_BUF];
DATA BYTE CCEDSDataBuf_rear=1, CCEDSDataBuf_front=0;
bit CC_remove_pair=0;
static IDATA BYTE CC_control_byte1=0, CC_control_byte2 = 0;
// ljy011304...CC_INFO...
// CC_control_byte1 :
// 1) 0x10-0x1f: The first byte of CC control code.
// 2) 0 : Not in the middle of control code.
// 3) 0xff : previous control code was for other channel.
#define CCWINTRANS1 0 // block bottom
#define CCWINTRANS2 1 // block upper
#define CCWIN1 2 // 4th line
#define CCWIN2 3 // 3rd line
#define CCWIN3 4 // 2nd line
#define CCWIN4 5 // 1st line
#define CCWIN5 6 // 0 line for scroll
#define CCWINCNT 4
#define CC_MAX_CHARS 32
#define CC_ADDR2 0
#define TEXTMODE_WIN CCWIN4 //ljy011404...CC_ADD_TEXTMODE_WIN...TEXTMODE uses only 1 window.
#define ROLLUP_START_WIN CCWIN4 //ljy011504...CC_FIX_SWITCH_STYLE
#define TEXTMODE_STARTROW 3
#define TEXTMODE_MAXROWS 10
#define TEXTMODE_MAXCLMS 32
//-----CCMode
#define POPON 0x20
#define ROLLUP2 0x25
#define ROLLUP3 0x26
#define ROLLUP4 0x27
#define PAINTON 0x29
#define TEXTMODE 0x2a
#ifdef DEBUG_CCEDS
CODE char CCAttrStr[][20]={
{"white"},
{"green"},
{"blue"},
{"cyan"},
{"red"},
{"yellow"},
{"magenta"},
{"italics"},
{"indent0, white"},
{"indent4, white"},
{"indent8, white"},
{"indent12, white"},
{"indent16, white"},
{"indent20, white"},
{"indent24, white"},
{"indent28, white"}
};
#endif // DEBUG_CCEDS
static BYTE CCAction=0;
struct CCWinInfo {
BYTE Cnt, Row, X, Tab;
} CCWinInfo[CCWIN4-CCWIN1+1];
static IDATA BYTE CCWin, CCWinCnt, S_CCWin, CCPos;
static IDATA WORD CCAddr, CCAddrBuf;
//----------------------------------------------------------------------------------------------
// ljy011204...CC_INFO...
// CCPos: (CaptionMode:PaintOn, PopOn, RollUp)- CursorOffset from startX
// : (TextMode) - Not used.
//
// CCAddrBuf: (CaptionMode:PaintOn, PopOn, RollUp)- The first OSD RAM address of the first row.
// : (TextMode) - The first OSD RAM address of working row.
//
// CCAddr: (Every Mode) - Current OSD RAM address.
//
// CCWin: (CaptionMode:PaintOn, PopOn, RollUp)- OSD Window's index for current working row.
// (TextMode) - Always TEXTMODE_WIN.
//
// CCWinCnt: (CaptionMode:PaintOn, PopOn, RollUP)- The number of OSD Windows having data.
// (TextMode) - Not used.
//----------------------------------------------------------------------------------------------
static IDATA BYTE control_code_count=0, CC_attr=0, CCMode;
static bit UnwantedMode = 0;
#define GetNextCCAddr ( (CCAddr + CC_MAX_CHARS - 1 ) / CC_MAX_CHARS * CC_MAX_CHARS )
//----------------------------------------------------------------------------------------------
// ljy011304...CC_FIX_PROCESS_OTHER_CH_MODE
// UnwantedMode: 1 - When received text mode data even though user want to see CaptionMode or vice versa.
// 0 - When the mode user set matches with input data
//----------------------------------------------------------------------------------------------
#define SetForOtherCh() CC_control_byte1 = 0xff
#define IsForOtherCh() (CC_control_byte1==0xff)
#define OnUnwantedMode() UnwantedMode = 1
#define OffUnwantedMode() UnwantedMode = 0
#define IsUnwantedMode() ( UnwantedMode )
#define GetLowerWinIndex(A) ( (((A-CCWIN1)+CCWINCNT-1)%CCWINCNT)+CCWIN1 )
#define GetUpperWinIndex(A) ( (((A-CCWIN1)+1)%CCWINCNT)+CCWIN1 )
#define SetCCWindowNum(a) WriteTW88(TW88_WINNUM, a);
//=================================================================================================
// For Roll-Up
static DATA BYTE lines=CC_FONT_HEIGHT;
static DATA BYTE StartWin=0, StartRow=0;
static DATA BYTE WinCnt=0;
static bit LastField=0;
//=================================================================================================
void ShowCCWindow(BYTE winno, BYTE onoff)
{
BYTE rd;
SetCCWindowNum(winno);
rd = ReadTW88(TW88_WINATTR);
if( onoff ) rd |= 0x01;
else rd &= 0xfe;
WriteTW88(TW88_WINATTR, rd);
}
//=================================================================================================
//
//=================================================================================================
void CopyCharToOSDRAM(WORD addr, BYTE attr, BYTE ch)
{
EnableOSDRAMAndChangeFont( FONT_ROM );
#ifndef TW8806
{
BYTE dat;
addr &= 0x1ff;
dat = ReadTW88(TW88_OSDRAMADDRHI) & 0xfe;
dat |= addr>>8;
WriteTW88(TW88_OSDRAMADDRHI, dat);
}
#endif
WriteTW88(TW88_OSDRAMADDRLO, addr);
WriteTW88(TW88_OSDRAMDATALO, attr);
WriteTW88(TW88_OSDRAMDATAHI, ch);
}
void CopyUDCharToOSDRAM(WORD addr, BYTE attr, BYTE ch)
{
EnableOSDRAMAndChangeFont( FONT_RAM );
#ifndef TW8806
{
BYTE dat;
addr &= 0x1ff;
dat = ReadTW88(TW88_OSDRAMADDRHI) & 0xfe;
dat |= addr>>8;
WriteTW88(TW88_OSDRAMADDRHI, dat);
}
#endif
WriteTW88(TW88_OSDRAMADDRLO, addr);
WriteTW88(TW88_OSDRAMDATALO, attr);
WriteTW88(TW88_OSDRAMDATAHI, ch);
}
//=================================================================================================
// Get/Set Window/Char attribute for CC
//=================================================================================================
WORD GetCCWindowSA(BYTE winno)
{
WORD Addr;
SetCCWindowNum(winno);
Addr = ReadTW88(TW88_WINSADDRLO);
Addr += (ReadTW88(TW88_WINSADDRHI) & 0x01)<<8;
return Addr;
}
void SetCCWindowW(BYTE winno, BYTE w)
{
SetCCWindowNum(winno);
WriteTW88(TW88_WINWIDTH, w); // x width(1 character width per 1 step)
}
void SetCCWindowSA(BYTE winno, WORD sa)
{
BYTE dat;
SetCCWindowNum(winno);
sa &= 0x1ff;
dat = (ReadTW88(TW88_WINSADDRHI) & 0xfe) | (sa>>8);
WriteTW88(TW88_WINSADDRHI, dat);
WriteTW88(TW88_WINSADDRLO, sa); // Start address of OSD RAM
}
void SetCCWindowColor(BYTE winno, BYTE color)
{
BYTE dat;
SetCCWindowNum(winno);
dat = ReadTW88(TW88_WINATTR) & 0x0f;
WriteTW88(TW88_WINATTR, dat | color);
}
void SetOSDItalicsAndUnderline(BYTE italics, BYTE underline)
{
BYTE dat;
dat = ReadTW88(TW88_ENABLERAM) & 0x9f;
if(italics) dat |= 0x40;
if(underline) dat |= 0x20;
WriteTW88(TW88_ENABLERAM, dat);
}
//=================================================================================================
//
//=================================================================================================
void ClearBlending(void)
{
BYTE i, winno;
for(winno=CCWIN1; winno<=CCWIN4; winno++) {
for(i=0; i<16; i++) {
WriteTW88(TW88_WINNUM, winno | (i*0x10) );
WriteTW88(TW88_WINBLENDING, 0);
}
}
}
//=================================================================================================
// X(Column) = 0 ~ 31, Y(Row) = 1 ~ 15
//=================================================================================================
void SetCCWindowX(BYTE winno, BYTE x)
{
BYTE dat;
WORD tmp;
SetCCWindowNum(winno);
tmp = x * CC_FONT_WIDTH + CC_X_ORG;
dat = ReadTW88(TW88_WINSTART_HI) & 0xf0;
dat = dat | (tmp>>8);
WriteTW88(TW88_WINSTART_HI, dat);
WriteTW88(TW88_WINXSTART, tmp);
}
WORD GetCCWindowYbyRow(BYTE row)
{
if( row>=0 && row <=16 )
return( (row-1) * CC_FONT_HEIGHT + CC_Y_ORG );
#ifdef DEBUG_CCEDS
ePrintf("\r\n+++++++ Row is outof range:%02bx", row);
#endif
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