667 lines
18 KiB
C++
667 lines
18 KiB
C++
/********************************************************/
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/* Routine de lecture d'un fichier GERBER format RS274X */
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/********************************************************/
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#include "fctsys.h"
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#include "common.h"
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#include "confirm.h"
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#include "macros.h"
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#include "gerbview.h"
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#include "pcbplot.h"
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#include "protos.h"
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#define CODE( x, y ) ( ((x) << 8) + (y) )
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enum RS274X_PARAMETERS
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{
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FORMAT_STATEMENT = CODE( 'F', 'S' ),
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AXIS_SELECT = CODE( 'A', 'S' ),
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MIRROR_IMAGE = CODE( 'M', 'I' ),
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MODE_OF_UNITS = CODE( 'M', 'O' ),
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INCH = CODE( 'I', 'N' ),
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MILLIMETER = CODE( 'M', 'M' ),
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OFFSET = CODE( 'O', 'F' ),
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SCALE_FACTOR = CODE( 'S', 'F' ),
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IMAGE_NAME = CODE( 'I', 'N' ),
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IMAGE_JUSTIFY = CODE( 'I', 'J' ),
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IMAGE_OFFSET = CODE( 'I', 'O' ),
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IMAGE_POLARITY = CODE( 'I', 'P' ),
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IMAGE_ROTATION = CODE( 'I', 'R' ),
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PLOTTER_FILM = CODE( 'P', 'M' ),
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INCLUDE_FILE = CODE( 'I', 'F' ),
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AP_DEFINITION = CODE( 'A', 'D' ),
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AP_MACRO = CODE( 'A', 'M' ),
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LAYER_NAME = CODE( 'L', 'N' ),
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LAYER_POLARITY = CODE( 'L', 'P' ),
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KNOCKOUT = CODE( 'K', 'O' ),
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STEP_AND_REPEAT = CODE( 'S', 'P' ),
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ROTATE = CODE( 'R', 'O' )
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};
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/* Local Functions */
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/**
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* Function ReadXCommand
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* reads in two bytes of data and assembles them into an int with the first
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* byte in the sequence put into the most significant part of a 16 bit value
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* and the second byte put into the least significant part of the 16 bit value.
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* @param text A reference to a pointer to read bytes from and to advance as they are read.
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* @return int - with 16 bits of data in the ls bits, upper bits zeroed.
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*/
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static int ReadXCommand( char*& text )
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{
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int result;
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if( text && *text )
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result = *text++ << 8;
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else
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return -1;
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if( text && *text )
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result += *text++;
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else
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return -1;
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return result;
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}
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/**
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* Function ReadInt
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* reads an int from an ASCII character buffer. If there is a comma after the
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* int, then skip over that.
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* @param text A reference to a character pointer from which bytes are read
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* and the pointer is advanced for each byte read.
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* @param int - The int read in.
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*/
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static int ReadInt( char*& text )
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{
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int ret = (int) strtol( text, &text, 10 );
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if( *text == ',' )
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++text;
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return ret;
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}
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/**
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* Function ReadDouble
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* reads a double from an ASCII character buffer. If there is a comma after the double,
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* then skip over that.
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* @param text A reference to a character pointer from which the ASCII double
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* is read from and the pointer advanced for each character read.
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* @return double
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*/
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static double ReadDouble( char*& text )
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{
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double ret = strtod( text, &text );
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if( *text == ',' )
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++text;
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return ret;
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}
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/****************************************************************************/
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bool GERBER::ReadRS274XCommand( WinEDA_GerberFrame* frame, wxDC* DC,
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char buff[GERBER_BUFZ], char*& text )
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/****************************************************************************/
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{
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bool ok = true;
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int code_command;
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text++;
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for(;;)
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{
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while( *text )
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{
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switch( *text )
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{
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case '%': // end of command
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text++;
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m_CommandState = CMD_IDLE;
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goto exit; // success completion
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case ' ':
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case '\r':
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case '\n':
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text++;
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break;
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case '*':
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text++;
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break;
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default:
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code_command = ReadXCommand( text );
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ok = ExecuteRS274XCommand( code_command, buff, text );
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if( !ok )
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goto exit;
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break;
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}
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}
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// end of current line, read another one.
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if( fgets( buff, GERBER_BUFZ, m_Current_File ) == NULL )
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{
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// end of file
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ok = false;
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break;
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}
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text = buff;
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}
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exit:
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return ok;
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}
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/*******************************************************************************/
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bool GERBER::ExecuteRS274XCommand( int command, char buff[GERBER_BUFZ], char*& text )
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/*******************************************************************************/
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{
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int code;
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int xy_seq_len, xy_seq_char;
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bool ok = TRUE;
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char line[GERBER_BUFZ];
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wxString msg;
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double fcoord;
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double conv_scale = m_GerbMetric ? PCB_INTERNAL_UNIT / 25.4 : PCB_INTERNAL_UNIT;
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D(printf( "%22s: Command <%c%c>\n", __func__, (command >> 8) & 0xFF, command & 0xFF );)
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switch( command )
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{
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case FORMAT_STATEMENT:
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xy_seq_len = 2;
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while( *text != '*' )
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{
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switch( *text )
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{
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case ' ':
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text++;
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break;
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case 'L': // No Leading 0
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m_NoTrailingZeros = FALSE;
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text++;
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break;
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case 'T': // No trailing 0
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m_NoTrailingZeros = TRUE;
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text++;
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break;
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case 'A': // Absolute coord
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m_Relative = FALSE;
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text++;
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break;
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case 'I': // Absolute coord
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m_Relative = TRUE;
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text++;
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break;
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case 'N': // Sequence code (followed by the number of digits for the X,Y command
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text++;
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xy_seq_char = *text++;
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if( (xy_seq_char >= '0') && (xy_seq_char <= '9') )
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xy_seq_len = -'0';
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break;
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case 'X':
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case 'Y': // Valeurs transmises :2 (really xy_seq_len : FIX ME) digits
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{
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code = *(text++);
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char ctmp = *(text++) - '0';
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if( code == 'X' )
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{
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m_FmtScale.x = *text - '0'; // = nb chiffres apres la virgule
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m_FmtLen.x = ctmp + m_FmtScale.x; // = nb total de chiffres
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}
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else
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{
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m_FmtScale.y = *text - '0';
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m_FmtLen.y = ctmp + m_FmtScale.y;
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}
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text++;
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}
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break;
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case '*':
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break;
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default:
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GetEndOfBlock( buff, text, m_Current_File );
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ok = FALSE;
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break;
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}
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}
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break;
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case AXIS_SELECT:
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case MIRROR_IMAGE:
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ok = FALSE;
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break;
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case MODE_OF_UNITS:
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code = ReadXCommand( text );
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if( code == INCH )
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m_GerbMetric = FALSE;
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else if( code == MILLIMETER )
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m_GerbMetric = TRUE;
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conv_scale = m_GerbMetric ? PCB_INTERNAL_UNIT / 25.4 : PCB_INTERNAL_UNIT;
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break;
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case OFFSET: // command: OFAnnBnn (nn = float number)
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m_Offset.x = m_Offset.y = 0;
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while( *text != '*' )
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{
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switch( *text )
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{
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case 'A': // A axis offset in current unit (inch ou mm)
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text++;
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fcoord = ReadDouble( text );
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m_Offset.x = wxRound( fcoord * conv_scale );
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break;
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case 'B': // B axis offset in current unit (inch ou mm)
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text++;
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fcoord = ReadDouble( text );
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m_Offset.y = wxRound( fcoord * conv_scale );
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break;
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}
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}
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break;
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case SCALE_FACTOR:
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case IMAGE_JUSTIFY:
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case IMAGE_ROTATION:
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case IMAGE_OFFSET:
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case PLOTTER_FILM:
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case LAYER_NAME:
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case KNOCKOUT:
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case STEP_AND_REPEAT:
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case ROTATE:
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msg.Printf( _( "Command <%c%c> ignored by Gerbview" ),
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(command >> 8) & 0xFF, command & 0xFF );
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if( g_DebugLevel > 0 )
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wxMessageBox( msg );
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break;
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case IMAGE_NAME:
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m_Name.Empty();
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while( *text != '*' )
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{
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m_Name.Append( *text++ );
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}
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break;
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case IMAGE_POLARITY:
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if( strnicmp( text, "NEG", 3 ) == 0 )
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m_ImageNegative = true;
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else
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m_ImageNegative = false;
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D(printf("%22s: IMAGE_POLARITY m_ImageNegative=%s\n", __func__, m_ImageNegative ? "true" : "false");)
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break;
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case LAYER_POLARITY:
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if( *text == 'C' )
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m_LayerNegative = true;
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else
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m_LayerNegative = false;
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D(printf("%22s: LAYER_POLARITY m_LayerNegative=%s\n", __func__, m_LayerNegative ? "true" : "false");)
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break;
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case INCLUDE_FILE:
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if( m_FilesPtr >= 10 )
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{
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ok = FALSE;
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DisplayError( NULL, _( "Too many include files!!" ) );
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break;
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}
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strcpy( line, text );
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strtok( line, "*%%\n\r" );
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m_FilesList[m_FilesPtr] = m_Current_File;
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m_Current_File = fopen( line, "rt" );
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if( m_Current_File == 0 )
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{
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wxString msg;
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msg.Printf( wxT( "fichier <%s> non trouve" ), line );
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DisplayError( NULL, msg, 10 );
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ok = FALSE;
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m_Current_File = m_FilesList[m_FilesPtr];
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break;
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}
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m_FilesPtr++;
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break;
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case AP_MACRO:
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ok = ReadApertureMacro( buff, text, m_Current_File );
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if( !ok )
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break;
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break;
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case AP_DEFINITION:
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// input example: %ADD30R,0.081800X0.101500*%
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// at this point, text points to 2nd 'D'
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if( *text++ != 'D' )
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{
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ok = FALSE;
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break;
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}
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m_Has_DCode = TRUE;
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code = ReadInt( text );
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D_CODE* dcode;
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dcode = GetDCODE( code );
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if( dcode == NULL )
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break;
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// at this point, text points to character after the ADD<num>, i.e. R in example above
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// if text[0] is one of the usual apertures: (C,R,O,P), there is a comma after it.
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if( text[1] == ',' )
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{
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char stdAperture = *text;
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text += 2; // skip "C," for example
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dcode->m_Size.x = dcode->m_Size.y =
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wxRound( ReadDouble( text ) * conv_scale );
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switch( stdAperture )
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{
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case 'C': // Circle
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dcode->m_Shape = APT_CIRCLE;
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while( *text == ' ' )
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text++;
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if( *text == 'X' )
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{
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text++;
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dcode->m_Drill.x = dcode->m_Drill.y =
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wxRound( ReadDouble( text ) * conv_scale );
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dcode->m_DrillShape = 1;
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}
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while( *text == ' ' )
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text++;
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if( *text == 'X' )
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{
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text++;
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dcode->m_Drill.y =
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wxRound( ReadDouble( text ) * conv_scale );
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dcode->m_DrillShape = 2;
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}
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dcode->m_Defined = TRUE;
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break;
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case 'O': // oval
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case 'R': // rect
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dcode->m_Shape = (stdAperture == 'O') ? APT_OVAL : APT_RECT;
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while( *text == ' ' )
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text++;
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if( *text == 'X' )
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{
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text++;
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dcode->m_Size.y =
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wxRound( ReadDouble( text ) * conv_scale );
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}
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while( *text == ' ' )
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text++;
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if( *text == 'X' )
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{
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text++;
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dcode->m_Drill.x = dcode->m_Drill.y =
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wxRound( ReadDouble( text ) * conv_scale );
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dcode->m_DrillShape = 1;
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}
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while( *text == ' ' )
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text++;
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if( *text == 'Y' )
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{
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text++;
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dcode->m_Drill.y =
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wxRound( ReadDouble( text ) * conv_scale );
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dcode->m_DrillShape = 2;
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}
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dcode->m_Defined = TRUE;
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break;
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case 'P': // Polygon
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dcode->m_Shape = APT_POLYGON;
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dcode->m_Defined = TRUE;
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break;
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}
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}
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else // text[0] starts an aperture macro name
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{
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APERTURE_MACRO am_lookup;
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while( *text && *text!='*' && *text!=',' )
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am_lookup.name.Append( *text++ );
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if( *text && *text==',' )
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{
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while( *text && *text!='*' )
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{
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double param = ReadDouble( text );
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if( *text == 'X' )
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++text;
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dcode->AppendParam( param );
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}
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}
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// lookup the aperture macro here.
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APERTURE_MACRO* pam = FindApertureMacro( am_lookup );
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if( !pam )
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{
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// @todo not found, don't know how to report an error
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D( printf("aperture macro %s not found\n", CONV_TO_UTF8(am_lookup.name) );)
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ok = false;
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break;
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}
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dcode->m_Shape = APT_MACRO;
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dcode->SetMacro( (APERTURE_MACRO*) pam );
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}
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break;
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default:
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ok = FALSE;
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break;
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}
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ok = GetEndOfBlock( buff, text, m_Current_File );
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return ok;
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}
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/*****************************************************************/
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bool GetEndOfBlock( char buff[GERBER_BUFZ], char*& text, FILE* gerber_file )
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/*****************************************************************/
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{
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for(;;)
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{
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while( (text < buff + GERBER_BUFZ) && *text )
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{
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if( *text == '*' )
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return TRUE;
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if( *text == '%' )
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return TRUE;
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text++;
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}
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if( fgets( buff, GERBER_BUFZ, gerber_file ) == NULL )
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break;
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text = buff;
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}
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return FALSE;
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}
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/*******************************************************************/
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bool GERBER::ReadApertureMacro( char buff[GERBER_BUFZ], char*& text, FILE* gerber_file )
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/*******************************************************************/
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{
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APERTURE_MACRO am;
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// read macro name
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while( *text )
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{
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if( *text == '*' )
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{
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++text;
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break;
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}
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am.name.Append( *text++ );
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}
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if( g_DebugLevel > 0 )
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wxMessageBox( am.name, wxT( "macro name" ) );
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for(;;)
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{
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AM_PRIMITIVE prim;
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if( *text == '*' )
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++text;
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if( *text == '\n' )
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++text;
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if( !*text )
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{
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text = buff;
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if( fgets( buff, GERBER_BUFZ, gerber_file ) == NULL )
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return false;
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}
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if( *text == '%' )
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break; // exit with text still pointing at %
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prim.primitive_id = (AM_PRIMITIVE_ID) ReadInt( text );
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int paramCount;
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switch( prim.primitive_id )
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{
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case AMP_CIRCLE:
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paramCount = 4;
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break;
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case AMP_LINE2:
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case AMP_LINE20:
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paramCount = 7;
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break;
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case AMP_LINE_CENTER:
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case AMP_LINE_LOWER_LEFT:
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paramCount = 6;
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break;
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case AMP_EOF:
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paramCount = 0;
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break;
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case AMP_OUTLINE:
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paramCount = 4;
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break;
|
|
case AMP_POLYGON:
|
|
paramCount = 4;
|
|
break;
|
|
case AMP_MOIRE:
|
|
paramCount = 9;
|
|
break;
|
|
case AMP_THERMAL:
|
|
paramCount = 6;
|
|
break;
|
|
default:
|
|
// @todo, there needs to be a way of reporting the line number and character offset.
|
|
D(printf("Invalid primitive id code %d\n", prim.primitive_id );)
|
|
return false;
|
|
}
|
|
|
|
int i;
|
|
for( i=0; i<paramCount && *text && *text!='*'; ++i )
|
|
{
|
|
prim.params.push_back( DCODE_PARAM() );
|
|
|
|
DCODE_PARAM& param = prim.params.back();
|
|
|
|
if( *text == '$' )
|
|
{
|
|
++text;
|
|
param.SetIndex( ReadInt( text ) );
|
|
}
|
|
else
|
|
param.SetValue( ReadDouble( text ) );
|
|
}
|
|
|
|
if( i<paramCount ) // maybe some day we can throw an exception and track a line number
|
|
printf("i=%d, insufficient parameters\n", i);
|
|
|
|
// there are more parameters to read if this is an AMP_OUTLINE
|
|
if( prim.primitive_id == AMP_OUTLINE )
|
|
{
|
|
// params[1] is a count of polygon points, so it must be given
|
|
// in advance, i.e. be immediate.
|
|
wxASSERT( prim.params[1].IsImmediate() );
|
|
|
|
paramCount = (int) prim.params[1].GetValue(0) * 2 + 1;
|
|
|
|
for( int i=0; i<paramCount && *text && *text!='*'; ++i )
|
|
{
|
|
prim.params.push_back( DCODE_PARAM() );
|
|
|
|
DCODE_PARAM& param = prim.params.back();
|
|
|
|
if( *text == '$' )
|
|
{
|
|
++text;
|
|
param.SetIndex( ReadInt( text ) );
|
|
}
|
|
else
|
|
param.SetValue( ReadDouble( text ) );
|
|
|
|
}
|
|
}
|
|
|
|
am.primitives.push_back( prim );
|
|
}
|
|
|
|
m_aperture_macros.insert( am );
|
|
|
|
return true;
|
|
}
|
|
|