library for Sharp memory LCD (LS027B4DH01)
Dependents: Sharp_Memory_LCD_Test Sharp_Memory_LCD_Test
sharp_mlcd.cpp
- Committer:
- masato
- Date:
- 2014-05-11
- Revision:
- 1:f8ba3b236d12
- Parent:
- 0:c99dda90f834
File content as of revision 1:f8ba3b236d12:
/* * mbed library for the Sharp memory LCD LS027BDH01 / LS013B4DN04 * derived from C12832_lcd * Copyright (c) 2014 Masato YAMANISHI * Released under the MIT License: http://mbed.org/license/mit */ /* mbed library for the mbed Lab Board 128*32 pixel LCD * use C12832 controller * Copyright (c) 2012 Peter Drescher - DC2PD * Released under the MIT License: http://mbed.org/license/mit * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ // 13.10.12 initial design // 25.10.12 add autorefresh of screen // 25.10.12 add standart font // 20.12.12 add bitmap graphics // optional defines : // #define debug_lcd 1 // #include "mbed.h" #include "sharp_mlcd.h" #include "stdio.h" #include "Small_7.h" sharp_mlcd::sharp_mlcd(const char* name) : _spi(D11,NC,D13),_EXTCOM(D9),_DISP(D8),_CS(D10), GraphicsDisplay(name) // for nucleo L152RE or other { draw_mode = NORMAL; char_x = 0; lcd_reset(); } int sharp_mlcd::width() { return WIDTH; } int sharp_mlcd::height() { return HEIGHT; // 32; } // write command to lcd controller // reset and init the lcd controller void sharp_mlcd::lcd_reset() { _CS = 0; _spi.format(8, 0); // 8 bit spi mode 0 _spi.frequency(2000000); // 2 Mhz SPI clock _DISP = 1; flip = 0; set_reverse_mode(0); // timer.attach(attime, 0.5); // 1KHz _CS = 1; wait_us(4); _spi.write(0x20); // 0x20:clear 0x00:run _spi.write(0); // dummy wait_us(2); _CS = 0; // clear and update LCD cls(); // memset(buffer,0xff,BUFFER_SIZE); // clear display buffer // copy_to_lcd(); auto_up = 1; // switch on auto update // dont do this by default. Make the user call //claim(stdout); // redirekt printf to lcd locate(0,0); set_font((unsigned char*)Small_7); // standart font } void sharp_mlcd::set_reverse_mode(unsigned int r = 0) { reverse = r; } // set one pixel in buffer void sharp_mlcd::pixel(int x, int y, int color) { // first check parameter if(x > WIDTH || y > HEIGHT || x < 0 || y < 0) return; if(draw_mode == NORMAL) { if(color != reverse) buffer[x/8 + (y*WIDTH/8)] &= ~(1 << (7-(x%8))); // set pixel else buffer[x/8 + (y*WIDTH/8)] |= (1 << (7-(x%8))); // erase pixel } else { // XOR mode if(color != reverse) buffer[x/8 + (y*WIDTH/8)] ^= (1 << (7-(x%8))); // xor pixel } } // update lcd void sharp_mlcd::attime() { flip = !flip; _EXTCOM = flip; } unsigned char sharp_mlcd::bit_reverse(unsigned char c) { unsigned char u=0; // c = TESTVALUE; int i; for (i=0 ; i<4 ; i++) u |= ((c & (1 << i)) << (7-2*i)) | ((c & (1 << 7-i)) >> (7-2*i)); return u; } void sharp_mlcd::copy_to_lcd(void) { const int start = 0; int x, y; unsigned char *p = (unsigned char*)buffer; // image; _CS = 1; wait_us(4); // min 3us // for (y = 0; y < HEIGHT; y++) { _spi.write(0x80); // update mode (multi line) _spi.write(bit_reverse((y + 1 + start) % HEIGHT)); // set gate line address for (x = 0; x < (WIDTH / 8); x++) { _spi.write(*p++); // (((y / 8) + x + mode) % 2)? 0xff: 0); } } // wait_us(2); // min 1us _CS = 0; } void sharp_mlcd::cls(void) { memset(buffer, reverse? 0x00: 0xff, BUFFER_SIZE); // clear display buffer copy_to_lcd(); } void sharp_mlcd::line(int x0, int y0, int x1, int y1, int color) { 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) vline(x0,y0,y1,color); // else vline(x0,y1,y0,color); // return; // } if (dx > 0) { dx_sym = 1; } else { dx_sym = -1; } // if (dy == 0) { /* horizontal line */ // if (x1 > x0) hline(x0,x1,y0,color); // else hline(x1,x0,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(); } void sharp_mlcd::rect(int x0, int y0, int x1, int y1, int color) { if (x1 > x0) line(x0,y0,x1,y0,color); else line(x1,y0,x0,y0,color); if (y1 > y0) line(x0,y0,x0,y1,color); else line(x0,y1,x0,y0,color); if (x1 > x0) line(x0,y1,x1,y1,color); else line(x1,y1,x0,y1,color); if (y1 > y0) line(x1,y0,x1,y1,color); else line(x1,y1,x1,y0,color); if(auto_up) copy_to_lcd(); } void sharp_mlcd::fillrect(int x0, int y0, int x1, int y1, int color) { int l,c,i; if(x0 > x1) { i = x0; x0 = x1; x1 = i; } if(y0 > y1) { i = y0; y0 = y1; y1 = i; } for(l = x0; l<= x1; l ++) { for(c = y0; c<= y1; c++) { pixel(l,c,color); } } if(auto_up) copy_to_lcd(); } void sharp_mlcd::circle(int x0, int y0, int r, int color) { int draw_x0, draw_y0; int draw_x1, draw_y1; int draw_x2, draw_y2; int draw_x3, draw_y3; int draw_x4, draw_y4; int draw_x5, draw_y5; int draw_x6, draw_y6; int draw_x7, draw_y7; int xx, yy; int di; //WindowMax(); if (r == 0) { /* no radius */ return; } draw_x0 = draw_x1 = x0; draw_y0 = draw_y1 = y0 + r; if (draw_y0 < height()) { pixel(draw_x0, draw_y0, color); /* 90 degree */ } draw_x2 = draw_x3 = x0; draw_y2 = draw_y3 = y0 - r; if (draw_y2 >= 0) { pixel(draw_x2, draw_y2, color); /* 270 degree */ } draw_x4 = draw_x6 = x0 + r; draw_y4 = draw_y6 = y0; if (draw_x4 < width()) { pixel(draw_x4, draw_y4, color); /* 0 degree */ } draw_x5 = draw_x7 = x0 - r; draw_y5 = draw_y7 = y0; if (draw_x5>=0) { pixel(draw_x5, draw_y5, color); /* 180 degree */ } if (r == 1) { return; } di = 3 - 2*r; xx = 0; yy = r; while (xx < yy) { if (di < 0) { di += 4*xx + 6; } else { di += 4*(xx - yy) + 10; yy--; draw_y0--; draw_y1--; draw_y2++; draw_y3++; draw_x4--; draw_x5++; draw_x6--; draw_x7++; } xx++; draw_x0++; draw_x1--; draw_x2++; draw_x3--; draw_y4++; draw_y5++; draw_y6--; draw_y7--; if ( (draw_x0 <= width()) && (draw_y0>=0) ) { pixel(draw_x0, draw_y0, color); } if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) { pixel(draw_x1, draw_y1, color); } if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) { pixel(draw_x2, draw_y2, color); } if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) { pixel(draw_x3, draw_y3, color); } if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) { pixel(draw_x4, draw_y4, color); } if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) { pixel(draw_x5, draw_y5, color); } if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) { pixel(draw_x6, draw_y6, color); } if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) { pixel(draw_x7, draw_y7, color); } } if(auto_up) copy_to_lcd(); } void sharp_mlcd::fillcircle(int x, int y, int r, int color) { int i,up; up = auto_up; auto_up = 0; // off for (i = 0; i <= r; i++) circle(x,y,i,color); auto_up = up; if(auto_up) copy_to_lcd(); } void sharp_mlcd::setmode(int mode) { draw_mode = mode; } void sharp_mlcd::locate(int x, int y) { char_x = x; char_y = y; } int sharp_mlcd::columns() { return width() / font[1]; } int sharp_mlcd::rows() { return height() / font[2]; } int sharp_mlcd::_putc(int value) { if (value == '\n') { // new line char_x = 0; char_y = char_y + font[2]; if (char_y >= height() - font[2]) { char_y = 0; } } else { character(char_x, char_y, value); if(auto_up) copy_to_lcd(); } return value; } void sharp_mlcd::character(int x, int y, int c) { unsigned int hor,vert,offset,bpl,j,i,b; unsigned char* zeichen; unsigned char z,w; if ((c < 31) || (c > 127)) 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 + hor > width()) { char_x = 0; char_y = char_y + vert; if (char_y >= height() - font[2]) { char_y = 0; } } zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap w = zeichen[0]; // width of actual char // construct the char into the buffer for (j=0; j<vert; j++) { // vert line for (i=0; i<hor; i++) { // horz line z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1]; b = 1 << (j & 0x07); if (( z & b ) == 0x00) { pixel(x+i,y+j,0); } else { pixel(x+i,y+j,1); } } } char_x += w; } void sharp_mlcd::set_font(unsigned char* f) { font = f; } void sharp_mlcd::set_auto_up(unsigned int up) { if(up ) auto_up = 1; else auto_up = 0; } unsigned int sharp_mlcd::get_auto_up(void) { return (auto_up); } void sharp_mlcd::print_bm(Bitmap bm, int x, int y, int color = 1) { int h,v,b; char d; for(v=0; v < bm.ySize; v++) { // lines for(h=0; h < bm.xSize; h++) { // pixel if(h + x > WIDTH-1) break; if(v + y > HEIGHT-1) break; d = bm.data[bm.Byte_in_Line * v + ((h & 0xF8) >> 3)]; b = 0x80 >> (h & 0x07); if((d & b) == 0) { pixel(x+h,y+v,!color); } else { pixel(x+h,y+v,color); } } } }