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1.1 root 1: /* 1.1.1.5 root 2: Hatari - printer.c 1.1 root 3: 1.1.1.15! root 4: This file is distributed under the GNU General Public License, version 2 ! 5: or at your option any later version. Read the file gpl.txt for details. 1.1.1.5 root 6: 1.1.1.6 root 7: Printer communication. When bytes are sent from the ST they are sent to these 8: functions via 'Printer_TransferByteTo()'. This will then open a file and 9: direct the output to this. These bytes are buffered up (to improve speed) and 10: this also allow us to detect when the stream goes into idle - at which point 11: we close the file/printer. 1.1.1.5 root 12: */ 1.1.1.11 root 13: const char Printer_fileid[] = "Hatari printer.c : " __DATE__ " " __TIME__; 1.1.1.4 root 14: 1.1 root 15: #include "main.h" 1.1.1.9 root 16: #include "configuration.h" 1.1 root 17: #include "file.h" 1.1.1.9 root 18: #include "paths.h" 1.1 root 19: #include "printer.h" 1.1.1.14 root 20: #include "log.h" 1.1.1.3 root 21: 1.1.1.14 root 22: #define PRINTER_DEBUG 0 23: #if PRINTER_DEBUG 24: #define Dprintf(a) printf a 25: #else 26: #define Dprintf(a) 27: #endif 1.1 root 28: 1.1.1.14 root 29: /* After ~4 seconds (4*50 VBLs), flush & close printer */ 30: #define PRINTER_IDLE_CLOSE (4*50) 1.1 root 31: 1.1.1.5 root 32: static int nIdleCount; 1.1.1.14 root 33: static int bUnflushed; 1.1 root 34: 1.1.1.9 root 35: static FILE *pPrinterHandle; 36: 37: 1.1.1.6 root 38: /*-----------------------------------------------------------------------*/ 1.1.1.9 root 39: /** 40: * Initialise Printer 41: */ 1.1 root 42: void Printer_Init(void) 43: { 1.1.1.14 root 44: char *separator; 45: Dprintf((stderr, "Printer_Init()\n")); 1.1.1.9 root 46: 1.1.1.14 root 47: /* disabled from config/command line? */ 48: if (!ConfigureParams.Printer.szPrintToFileName[0]) 49: return; 50: 51: /* printer name without path? */ 52: separator = strrchr(ConfigureParams.Printer.szPrintToFileName, PATHSEP); 53: if (!separator) 54: return; 55: 56: *separator = '\0'; 57: if (!File_DirExists(ConfigureParams.Printer.szPrintToFileName)) { 58: Log_AlertDlg(LOG_ERROR, "Printer output file directory inaccessible. Printing disabled."); 59: ConfigureParams.Printer.bEnablePrinting = false; 1.1.1.5 root 60: } 1.1.1.14 root 61: *separator = PATHSEP; 1.1.1.5 root 62: 1.1.1.14 root 63: Dprintf((stderr, "Filename for printing: %s \n", ConfigureParams.Printer.szPrintToFileName)); 1.1 root 64: } 65: 1.1.1.2 root 66: 67: /*-----------------------------------------------------------------------*/ 1.1.1.9 root 68: /** 69: * Uninitialise Printer 70: */ 1.1 root 71: void Printer_UnInit(void) 72: { 1.1.1.14 root 73: Dprintf((stderr, "Printer_UnInit()\n")); 1.1 root 74: 1.1.1.6 root 75: /* Close any open files */ 1.1.1.9 root 76: pPrinterHandle = File_Close(pPrinterHandle); 1.1.1.14 root 77: bUnflushed = false; 78: nIdleCount = 0; 1.1 root 79: } 80: 1.1.1.2 root 81: 1.1.1.6 root 82: /*-----------------------------------------------------------------------*/ 1.1.1.9 root 83: /** 84: * Pass byte from emulator to printer. Opens the printer file appending 1.1.1.12 root 85: * if it isn't already open. Returns false if connection to "printer" 1.1.1.9 root 86: * failed 87: */ 1.1.1.10 root 88: bool Printer_TransferByteTo(Uint8 Byte) 1.1 root 89: { 1.1.1.6 root 90: /* Do we want to output to a printer/file? */ 91: if (!ConfigureParams.Printer.bEnablePrinting) 1.1.1.12 root 92: return false; /* Failed if printing disabled */ 1.1.1.6 root 93: 94: /* Have we made a connection to our printer/file? */ 1.1.1.14 root 95: if (!pPrinterHandle) 1.1.1.6 root 96: { 1.1.1.9 root 97: /* open printer file... */ 98: pPrinterHandle = File_Open(ConfigureParams.Printer.szPrintToFileName, "a+"); 1.1.1.14 root 99: if (!pPrinterHandle) 100: { 101: Log_AlertDlg(LOG_ERROR, "Printer output file open failed. Printing disabled."); 102: ConfigureParams.Printer.bEnablePrinting = false; 103: return false; 104: } 1.1.1.6 root 105: } 1.1.1.14 root 106: if (fputc(Byte, pPrinterHandle) != Byte) 1.1.1.6 root 107: { 1.1.1.14 root 108: fprintf(stderr, "ERROR: Printer_TransferByteTo() writing failed!\n"); 109: return false; 1.1.1.6 root 110: } 1.1.1.14 root 111: bUnflushed = true; 112: return true; 1.1 root 113: } 114: 1.1.1.2 root 115: 1.1.1.6 root 116: /*-----------------------------------------------------------------------*/ 1.1.1.9 root 117: /** 118: * Empty printer buffer, and if remains idle for set time close connection 119: * (ie close file, stop printer) 120: */ 1.1 root 121: void Printer_CheckIdleStatus(void) 122: { 1.1.1.6 root 123: /* Is anything waiting for printer? */ 1.1.1.14 root 124: if (bUnflushed) 1.1.1.6 root 125: { 1.1.1.14 root 126: fflush(pPrinterHandle); 127: bUnflushed = false; 1.1.1.6 root 128: nIdleCount = 0; 129: } 130: else 131: { 132: nIdleCount++; 133: /* Has printer been idle? */ 134: if (nIdleCount >= PRINTER_IDLE_CLOSE) 135: { 136: /* Close printer output */ 1.1.1.14 root 137: Printer_UnInit(); 1.1.1.6 root 138: } 139: } 1.1 root 140: }
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