Initial Arduino IDE based on Processing.

build/shared/lib/avrlib/glcd.c

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+/*! \file glcd.c \brief Graphic LCD API functions. */
+//*****************************************************************************
+//
+// File Name	: 'glcd.c'
+// Title		: Graphic LCD API functions
+// Author		: Pascal Stang - Copyright (C) 2002
+// Date			: 5/30/2002
+// Revised		: 5/30/2002
+// Version		: 0.5
+// Target MCU	: Atmel AVR
+// Editor Tabs	: 4
+//
+// NOTE: This code is currently below version 1.0, and therefore is considered
+// to be lacking in some functionality or documentation, or may not be fully
+// tested.  Nonetheless, you can expect most functions to work.
+//
+// This code is distributed under the GNU Public License
+//		which can be found at http://www.gnu.org/licenses/gpl.txt
+//
+//*****************************************************************************
+
+#ifndef WIN32
+// AVR specific includes
+	#include <avr/io.h>
+	#include <avr/pgmspace.h>
+#endif
+
+#include "glcd.h"
+
+// include hardware support
+#include "ks0108.h"
+// include fonts
+#include "font5x7.h"
+#include "fontgr.h"
+
+// graphic routines
+
+// set dot
+void glcdSetDot(u08 x, u08 y)
+{
+	unsigned char temp;
+
+	glcdSetAddress(x, y/8);
+	temp = glcdDataRead();	// dummy read
+	temp = glcdDataRead();	// read back current value
+	glcdSetAddress(x, y/8);
+	glcdDataWrite(temp | (1 << (y % 8)));
+
+	glcdStartLine(0);
+}
+
+// clear dot
+void glcdClearDot(u08 x, u08 y)
+{
+	unsigned char temp;
+
+	glcdSetAddress(x, y/8);
+	temp = glcdDataRead();	// dummy read
+	temp = glcdDataRead();	// read back current value
+	glcdSetAddress(x, y/8);
+	glcdDataWrite(temp & ~(1 << (y % 8)));
+
+	glcdStartLine(0);
+}
+
+// draw line
+void glcdLine(u08 x1, u08 y1, u08 x2, u08 y2)
+{
+};
+
+// draw rectangle
+void glcdRectangle(u08 x, u08 y, u08 a, u08 b)
+{
+  unsigned char j;
+
+  for (j = 0; j < a; j++) {
+		glcdSetDot(x, y + j);
+		glcdSetDot(x + b - 1, y + j);
+	}
+  for (j = 0; j < b; j++)	{
+		glcdSetDot(x + j, y);
+		glcdSetDot(x + j, y + a - 1);
+	}
+}
+
+// draw circle
+void glcdCircle(u08 xcenter, u08 ycenter, u08 radius)
+{
+  int tswitch, y, x = 0;
+  unsigned char d;
+
+  d = ycenter - xcenter;
+  y = radius;
+  tswitch = 3 - 2 * radius;
+  while (x <= y) {
+    glcdSetDot(xcenter + x, ycenter + y);     glcdSetDot(xcenter + x, ycenter - y);
+    glcdSetDot(xcenter - x, ycenter + y);     glcdSetDot(xcenter - x, ycenter - y);
+    glcdSetDot(ycenter + y - d, ycenter + x); glcdSetDot(ycenter + y - d, ycenter - x);
+    glcdSetDot(ycenter - y - d, ycenter + x); glcdSetDot(ycenter - y - d, ycenter - x);
+
+    if (tswitch < 0) tswitch += (4 * x + 6);
+    else {
+      tswitch += (4 * (x - y) + 10);
+      y--;
+    }
+    x++;
+  }
+}
+
+// text routines
+
+// write a character at the current position
+void glcdWriteChar(unsigned char c)
+{
+	u08 i = 0;
+
+	for(i=0; i<5; i++)
+	{
+		glcdDataWrite(pgm_read_byte(&Font5x7[((c - 0x20) * 5) + i]));
+	}
+
+	// write a spacer line
+	glcdDataWrite(0x00);
+	// unless we're at the end of the display
+	//if(xx == 128)
+	//	xx = 0;
+	//else 
+	//	glcdWriteData(0x00);
+
+	//cbi(GLCD_Control, GLCD_CS1);
+	//cbi(GLCD_Control, GLCD_CS2);
+	glcdStartLine(0);
+}
+
+void glcdWriteCharGr(u08 grCharIdx)
+{
+	u08 idx;
+	u08 grLength;
+	u08 grStartIdx = 0;
+
+	// get starting index of graphic bitmap
+	for(idx=0; idx<grCharIdx; idx++)
+	{
+		// add this graphic's length to the startIdx
+		// to get the startIdx of the next one
+		grStartIdx += pgm_read_byte(FontGr+grStartIdx);
+	}
+	grLength = pgm_read_byte(FontGr+grStartIdx);
+
+	// write the lines of the desired graphic to the display
+	for(idx=0; idx<grLength; idx++)
+	{
+		// write the line
+		glcdDataWrite(pgm_read_byte(FontGr+(grStartIdx+1)+idx));
+	}
+}
+
+void glcdPutStr(unsigned char *data)
+{
+  while (*data) {
+    glcdWriteChar(*data);
+    data++;
+  }
+}