Basically i glued Peter Drescher and Simon Ford libs in a GraphicsDisplay class, then derived TFT or LCD class (which inherits Protocols class), then the most derived ones (Inits), which are per-display and are the only part needed to be adapted to diff hw.
Dependents: testUniGraphic_150217 maze_TFT_MMA8451Q TFT_test_frdm-kl25z TFT_test_NUCLEO-F411RE ... more
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); + } +} + + +