Satyan Raj
test
Fork of
UniGraphic
by 
GraphicsDisplay
Diff: Graphics/GraphicsDisplay.cpp
- Revision:
- 0:75ec1b3cde17
- Child:
- 2:713844a55c4e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Graphics/GraphicsDisplay.cpp Thu Feb 12 22:22:47 2015 +0000
@@ -0,0 +1,430 @@
+/* mbed GraphicsDisplay Display Library Base Class
+ * Copyright (c) 2007-2009 sford
+ * Released under the MIT License: http://mbed.org/license/mit
+ */
+
+#include "GraphicsDisplay.h"
+#define SWAP(a, b) { a ^= b; b ^= a; a ^= b; }
+GraphicsDisplay::GraphicsDisplay(const char *name):TextDisplay(name) {
+ set_font((unsigned char*)Terminal6x8);
+ foreground(0xFFFF);
+ background(0x0000);
+ char_x = 0;
+ char_y = 0;
+ oriented_width=0;
+ oriented_height=0;
+ auto_up = true;
+}
+
+void GraphicsDisplay::WindowMax (void)
+{
+ window (0, 0, oriented_width, oriented_height);
+}
+void GraphicsDisplay::set_width(int width)
+{
+ oriented_width = width;
+}
+void GraphicsDisplay::set_height(int height)
+{
+ oriented_height = height;
+}
+int GraphicsDisplay::width()
+{
+ return oriented_width;
+}
+int GraphicsDisplay::height()
+{
+ return oriented_height;
+}
+void GraphicsDisplay::circle(int x0, int y0, int r, unsigned short color)
+{
+ int x = -r, y = 0, err = 2-2*r, e2;
+ do {
+ pixel(x0-x, y0+y,color);
+ pixel(x0+x, y0+y,color);
+ pixel(x0+x, y0-y,color);
+ pixel(x0-x, y0-y,color);
+ e2 = err;
+ if (e2 <= y) {
+ err += ++y*2+1;
+ if (-x == y && e2 <= x) e2 = 0;
+ }
+ if (e2 > x) err += ++x*2+1;
+ } while (x <= 0);
+ if(auto_up) copy_to_lcd();
+}
+void GraphicsDisplay::fillcircle(int x0, int y0, int r, unsigned short color)
+{
+ bool old_auto_up=auto_up;
+ if(auto_up) auto_up=false;
+ int x = -r, y = 0, err = 2-2*r, e2;
+ do {
+ vline(x0-x, y0-y, y0+y, color);
+ vline(x0+x, y0-y, y0+y, color);
+ e2 = err;
+ if (e2 <= y) {
+ err += ++y*2+1;
+ if (-x == y && e2 <= x) e2 = 0;
+ }
+ if (e2 > x) err += ++x*2+1;
+ } while (x <= 0);
+ if(old_auto_up)
+ {
+ auto_up=true;
+ copy_to_lcd();
+ }
+}
+void GraphicsDisplay::hline(int x0, int x1, int y, unsigned short color)
+{
+ int len;
+ len = x1 - x0 + 1;
+ window(x0,y,len,1);
+ for (int j=0; j<len; j++) window_pushpixel(color);
+ if(auto_up) copy_to_lcd();
+ return;
+}
+void GraphicsDisplay::vline(int x, int y0, int y1, unsigned short color)
+{
+ int len;
+ len = y1 - y0 + 1;
+ window(x,y0,1,len);
+ for (int y=0; y<len; y++) window_pushpixel(color);
+ if(auto_up) copy_to_lcd();
+ return;
+}
+void GraphicsDisplay::line(int x0, int y0, int x1, int y1, unsigned short color)
+{
+ //WindowMax();
+ int dx = 0, dy = 0;
+ int dx_sym = 0, dy_sym = 0;
+ int dx_x2 = 0, dy_x2 = 0;
+ int di = 0;
+
+ dx = x1-x0;
+ dy = y1-y0;
+
+ if (dx == 0) { /* vertical line */
+ if (y1 < y0) SWAP(y0,y1);
+ vline(x0,y0,y1,color);
+ return;
+ }
+
+ if (dx > 0) {
+ dx_sym = 1;
+ } else {
+ dx_sym = -1;
+ }
+ if (dy == 0) { /* horizontal line */
+ if (x1 < x0) SWAP(x1,x0);
+ hline(x0,x1,y0,color);
+ return;
+ }
+
+ if (dy > 0) {
+ dy_sym = 1;
+ } else {
+ dy_sym = -1;
+ }
+
+ dx = dx_sym*dx;
+ dy = dy_sym*dy;
+
+ dx_x2 = dx*2;
+ dy_x2 = dy*2;
+
+ if (dx >= dy) {
+ di = dy_x2 - dx;
+ while (x0 != x1) {
+
+ pixel(x0, y0, color);
+ x0 += dx_sym;
+ if (di<0) {
+ di += dy_x2;
+ } else {
+ di += dy_x2 - dx_x2;
+ y0 += dy_sym;
+ }
+ }
+ pixel(x0, y0, color);
+ } else {
+ di = dx_x2 - dy;
+ while (y0 != y1) {
+ pixel(x0, y0, color);
+ y0 += dy_sym;
+ if (di < 0) {
+ di += dx_x2;
+ } else {
+ di += dx_x2 - dy_x2;
+ x0 += dx_sym;
+ }
+ }
+ pixel(x0, y0, color);
+ }
+ if(auto_up) copy_to_lcd();
+ return;
+}
+void GraphicsDisplay::rect(int x0, int y0, int x1, int y1, unsigned short color)
+{
+ bool old_auto_up=auto_up;
+ if(auto_up) auto_up=0;
+ if (x1 > x0) hline(x0,x1,y0,color);
+ else hline(x1,x0,y0,color);
+
+ if (y1 > y0) vline(x0,y0,y1,color);
+ else vline(x0,y1,y0,color);
+
+ if (x1 > x0) hline(x0,x1,y1,color);
+ else hline(x1,x0,y1,color);
+
+ if (y1 > y0) vline(x1,y0,y1,color);
+ else vline(x1,y1,y0,color);
+ if(old_auto_up)
+ {
+ auto_up=true;
+ copy_to_lcd();
+ }
+ return;
+}
+void GraphicsDisplay::fillrect(int x0, int y0, int x1, int y1, unsigned short color)
+{
+ if(x0 > x1) SWAP(x0,x1);
+ if(y0 > y1) SWAP(y0,y1);
+
+ int h = y1 - y0 + 1;
+ int w = x1 - x0 + 1;
+ unsigned int pixels = h * w;
+ window(x0,y0,w,h);
+ for (unsigned int p=0; p<pixels; p++) window_pushpixel(color);
+ if(auto_up) copy_to_lcd();
+ return;
+}
+void GraphicsDisplay::locate(int x, int y)
+{
+ char_x = x;
+ char_y = y;
+}
+int GraphicsDisplay::columns()
+{
+ return oriented_width / fonthor;
+}
+int GraphicsDisplay::rows()
+{
+ return oriented_height / fontvert;
+}
+void GraphicsDisplay::set_font(unsigned char* f, unsigned char firstascii, unsigned char lastascii)
+{
+ font = f;
+ // read font parameter from start of array
+ //fontoffset = font[0]; // bytes / char
+ fonthor = font[1]; // get hor size of font
+ fontvert = font[2]; // get vert size of font
+ //fontbpl = font[3]; // bytes per line
+ fontbpl = (fontvert+7)>>3; //bytes per line, rounded up to multiple of 8
+ fontoffset = (fonthor*fontbpl)+1;
+ firstch = firstascii; // first ascii code present in font array (usually 32)
+ lastch = lastascii; // last ascii code present in font array (usually 127)
+}
+int GraphicsDisplay::_putc(int value)
+{
+ if (value == '\n') { // new line
+ char_x = 0;
+ char_y = char_y + fontvert;
+ if (char_y >= oriented_height - fontvert) {
+ char_y = 0;
+ }
+ } else {
+ character(char_x, char_y, value);
+ if(auto_up) copy_to_lcd();
+ }
+ return value;
+}
+void GraphicsDisplay::character(int x, int y, int c)
+{
+ char_x=x;
+ char_y=y;
+ int j,i,b;
+ unsigned char* zeichen;
+ unsigned char z,w;
+
+ if ((c < firstch) || (c > lastch)) return; // test char range
+
+ /* // read font parameter from start of array
+ offset = font[0]; // bytes / char
+ hor = font[1]; // get hor size of font
+ vert = font[2]; // get vert size of font
+ bpl = font[3]; // bytes per line
+*/
+ if (char_x + fonthor > oriented_width) {
+ char_x = 0;
+ char_y = char_y + fontvert;
+ if (char_y > oriented_height - fontvert) {
+ char_y = 0;
+ }
+ }
+ window(char_x, char_y,fonthor,fontvert); // char box
+ zeichen = &font[((c-firstch) * fontoffset) + 4]; // start of char bitmap
+ w = zeichen[0]; // width of actual char
+ // construct the char into the buffer
+ for (j=0; j<fontvert; j++) { // vert line
+ for (i=0; i<fonthor; i++) { // horz line
+ z = zeichen[(fontbpl * i) + ((j & 0xF8) >> 3)+1];
+ b = 1 << (j & 0x07);
+ if (( z & b ) == 0x00) {
+ // pixel(char_x+i,char_y+j,0);
+ window_pushpixel(_background);
+ } else {
+ // pixel(char_x+i,char_y+j,1);
+ window_pushpixel(_foreground);
+ }
+ }
+ }
+ char_x += w;
+}
+void GraphicsDisplay::Bitmap_BW(Bitmap_s bm, int x, int y)
+{
+ int h,v,b;
+ // int cropX;
+ char d;
+ if(x<0) x=0;
+ if(y<0) y=0;
+ int cropX = (x+bm.xSize)-oriented_width;
+ if(cropX<0) cropX=0;
+ window(x, y, bm.xSize-cropX, bm.ySize);
+ for(v=0; v < bm.ySize; v++) { // lines
+ if((v + y) >= oriented_height) break; // no need to crop Y
+ for(h=0; h < bm.xSize; h++) { // pixel
+ if((h + x) >= oriented_width) break;
+ d = bm.data[bm.Byte_in_Line * v + ((h & 0xF8) >> 3)];
+ b = 0x80 >> (h & 0x07);
+ if((d & b) == 0) {
+ window_pushpixel(_background);
+ } else {
+ window_pushpixel(_foreground);
+ }
+ }
+ }
+ if(auto_up) copy_to_lcd();
+}
+void GraphicsDisplay::Bitmap(int x, int y, int w, int h,unsigned char *bitmap)
+{
+ int j,i;
+ int padd;
+ unsigned short *bitmap_ptr = (unsigned short *)bitmap;
+// unsigned short i;
+
+ // the lines are padded to multiple of 4 bytes in a bitmap
+ padd = -1;
+ do {
+ padd ++;
+ } while (2*(w + padd)%4 != 0);
+ if(x<0) x=0;
+ if(y<0) y=0;
+ int cropX = (x+w)-oriented_width;
+ if(cropX<0) cropX=0;
+ window(x, y, w-cropX, h);
+ bitmap_ptr += ((h - 1)* (w + padd));
+// wr_cmd(0x2C); // send pixel
+ for (j = 0; j < h; j++) { //Lines
+ if((h + y) >= oriented_height) break; // no need to crop Y
+ for (i = 0; i < w; i++) { // one line
+ if((w + x) < oriented_width) window_pushpixel(*bitmap_ptr);
+ bitmap_ptr++;
+ }
+ bitmap_ptr -= 2*w;
+ bitmap_ptr -= padd;
+ }
+ if(auto_up) copy_to_lcd();
+}
+// local filesystem is not implemented in kinetis board , but you can add a SD card
+
+int GraphicsDisplay::BMP_16(int x, int y, const char *Name_BMP)
+{
+
+#define OffsetPixelWidth 18
+#define OffsetPixelHeigh 22
+#define OffsetFileSize 34
+#define OffsetPixData 10
+#define OffsetBPP 28
+
+ char filename[50];
+ unsigned char BMP_Header[54];
+ unsigned short BPP_t;
+ unsigned int PixelWidth,PixelHeigh,start_data;
+ unsigned int i,off;
+ int padd,j;
+ unsigned short *line;
+
+ // get the filename
+ i=0;
+ while (*Name_BMP!='\0') {
+ filename[i++]=*Name_BMP++;
+ }
+ filename[i] = 0;
+
+ FILE *Image = fopen((const char *)&filename[0], "rb"); // open the bmp file
+ if (!Image) {
+ return(0); // error file not found !
+ }
+
+ fread(&BMP_Header[0],1,54,Image); // get the BMP Header
+
+ if (BMP_Header[0] != 0x42 || BMP_Header[1] != 0x4D) { // check magic byte
+ fclose(Image);
+ return(-1); // error no BMP file
+ }
+
+ BPP_t = BMP_Header[OffsetBPP] + (BMP_Header[OffsetBPP + 1] << 8);
+ if (BPP_t != 0x0010) {
+ fclose(Image);
+ return(-2); // error no 16 bit BMP
+ }
+
+ PixelHeigh = BMP_Header[OffsetPixelHeigh] + (BMP_Header[OffsetPixelHeigh + 1] << 8) + (BMP_Header[OffsetPixelHeigh + 2] << 16) + (BMP_Header[OffsetPixelHeigh + 3] << 24);
+ PixelWidth = BMP_Header[OffsetPixelWidth] + (BMP_Header[OffsetPixelWidth + 1] << 8) + (BMP_Header[OffsetPixelWidth + 2] << 16) + (BMP_Header[OffsetPixelWidth + 3] << 24);
+ if (PixelHeigh > oriented_height + y || PixelWidth > oriented_width + x) {
+ fclose(Image);
+ return(-3); // to big
+ }
+
+ start_data = BMP_Header[OffsetPixData] + (BMP_Header[OffsetPixData + 1] << 8) + (BMP_Header[OffsetPixData + 2] << 16) + (BMP_Header[OffsetPixData + 3] << 24);
+
+ line = (unsigned short *) malloc (2 * PixelWidth); // we need a buffer for a line
+ if (line == NULL) {
+ return(-4); // error no memory
+ }
+
+ // the bmp lines are padded to multiple of 4 bytes
+ padd = -1;
+ do {
+ padd ++;
+ } while ((PixelWidth * 2 + padd)%4 != 0);
+
+ window(x, y,PixelWidth ,PixelHeigh);
+// wr_cmd(0x2C); // send pixel
+ for (j = PixelHeigh - 1; j >= 0; j--) { //Lines bottom up
+ off = j * (PixelWidth * 2 + padd) + start_data; // start of line
+ fseek(Image, off ,SEEK_SET);
+ fread(line,1,PixelWidth * 2,Image); // read a line - slow
+ for (i = 0; i < PixelWidth; i++) { // copy pixel data to TFT
+ // wr_16(line[i]); // one 16 bit pixel
+ window_pushpixel(line[i]);
+ }
+ }
+ free (line);
+ fclose(Image);
+ if(auto_up) copy_to_lcd();
+ return(1);
+}
+
+void GraphicsDisplay::cls (void)
+{
+ unsigned int pixels = ( oriented_width * oriented_height);
+ WindowMax();
+ for (unsigned int i = 0; i < pixels; i++)
+ {
+ window_pushpixel(_background);
+ }
+}
+
+
+