404 lines
7.7 KiB
C
404 lines
7.7 KiB
C
#include "glcd.h"
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#include "fonts.h"
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#include <stdlib.h>
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#include <math.h>
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*
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* Interface implementation. The interface is write only
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*/
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static size_t writes(void *ip, const uint8_t *bp, size_t n) {
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(void)ip;
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return lcdWriteString(bp, n);
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}
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static size_t reads(void *ip, uint8_t *bp, size_t n) {
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(void)ip;
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(void)bp;
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(void)n;
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return 0;
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}
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static msg_t put(void *ip, uint8_t b) {
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(void)ip;
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return lcdDrawChar((char)b);
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}
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static msg_t get(void *ip) {
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(void)ip;
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return RDY_OK;
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}
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static msg_t putt(void *ip, uint8_t b, systime_t timeout) {
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(void)ip;
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(void)timeout;
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/* TODO: handle timeout */
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return lcdDrawChar((char)b);
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}
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static msg_t gett(void *ip, systime_t timeout) {
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(void)ip;
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(void)timeout;
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return RDY_OK;
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}
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static size_t writet(void *ip, const uint8_t *bp, size_t n, systime_t time) {
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(void)ip;
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(void)time;
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return lcdWriteString(bp, n);
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}
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static size_t readt(void *ip, uint8_t *bp, size_t n, systime_t time) {
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(void)ip;
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(void)bp;
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(void)n;
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(void)time;
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return 0;
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}
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static chnflags_t getflags(void *ip) {
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_chn_get_and_clear_flags_impl(ip);
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}
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static const struct GLCDDriverVMT vmt = {
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writes, reads, put, get,
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putt, gett, writet, readt,
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getflags
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};
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uint16_t lcd_width, lcd_height;
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uint16_t bgcolor = White, fgcolor = Black;
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uint16_t cx = 0, cy = 0;
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static uint8_t tpText = 0;
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const uint8_t* font;
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void lcdInit(GLCDDriver *glcdp) {
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glcdp->vmt = &vmt;
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lld_lcdInit();
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lcd_width = lcdGetWidth();
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lcd_height = lcdGetHeight();
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lcdSetOrientation(portrait);
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lcdSetFontTransparency(transparent);
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lcdSetFont(font_MediumBold);
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}
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uint16_t lcdGetHeight(void) {
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return lld_lcdGetHeight();
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}
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uint16_t lcdGetWidth(void) {
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return lld_lcdGetWidth();
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}
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uint16_t lcdGetOrientation(void) {
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return lld_lcdGetOrientation();
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}
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static void lcdSetCursor(uint16_t x, uint16_t y) {
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lld_lcdSetCursor(x, y);
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}
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void lcdSetPowerMode(uint8_t powerMode) {
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lld_lcdSetPowerMode(powerMode);
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}
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void lcdSetOrientation(uint8_t newOrientation) {
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lld_lcdSetOrientation(newOrientation);
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}
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void lcdSetWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
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lld_lcdSetWindow(x0, y0, x1, y1);
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}
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void lcdFillArea(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color) {
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lld_lcdFillArea(x0, y0, x1, y1, color);
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}
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void lcdClear(uint16_t color) {
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lld_lcdClear(color);
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}
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uint16_t lcdGetPixelColor(uint16_t x, uint16_t y) {
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return lld_lcdGetPixelColor(x, y);
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}
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void lcdDrawPixel(uint16_t x, uint16_t y, uint16_t color) {
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lld_lcdDrawPixel(x, y, color);
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}
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static void lcdWriteStreamStart(void) {
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lld_lcdWriteStreamStart();
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}
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static void lcdWriteStreamStop(void) {
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lld_lcdWriteStreamStop();
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}
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static void lcdWriteStream(uint16_t *buffer, uint16_t size) {
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lld_lcdWriteStream(buffer, size);
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}
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void lcdDrawLine(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color) {
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int16_t dy, dx;
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int16_t addx = 1, addy = 1;
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int16_t P, diff;
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int16_t i = 0;
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dx = abs((int16_t)(x1 - x0));
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dy = abs((int16_t)(y1 - y0));
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if(x0 > x1)
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addx = -1;
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if(y0 > y1)
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addy = -1;
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if(dx >= dy) {
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dy *= 2;
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P = dy - dx;
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diff = P - dx;
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for(; i<=dx; ++i) {
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lcdDrawPixel(x0, y0, color);
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if(P < 0) {
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P += dy;
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x0 += addx;
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} else {
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P += diff;
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x0 += addx;
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y0 += addy;
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}
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}
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} else {
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dx *= 2;
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P = dx - dy;
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diff = P - dy;
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for(; i<=dy; ++i) {
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lcdDrawPixel(x0, y0, color);
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if(P < 0) {
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P += dx;
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y0 += addy;
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} else {
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P += diff;
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x0 += addx;
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y0 += addy;
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}
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}
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}
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}
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void lcdSetFont(const uint8_t *newFont) {
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font = newFont;
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}
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void lcdSetFontTransparency(uint8_t transparency) {
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tpText = transparency;
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}
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msg_t lcdDrawChar(char c) {
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const uint8_t* ptr;
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uint8_t fontHeight = lcdGetCurFontHeight();
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uint8_t sps = font[FONT_TABLE_PAD_AFTER_CHAR_IDX];
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uint16_t chi;
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uint16_t x,y;
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// No support for nongraphic characters, so just ignore them
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if(c < 0x20 || c > 0x7F) {
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if(c == '\n')
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lcdLineBreak();
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return RDY_OK;
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}
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chi = *(uint16_t*)(&font[FONT_TABLE_CHAR_LOOKUP_IDX + (c-0x20)*2]);
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ptr = font + chi;
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uint8_t fontWidth = *(ptr++);
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if(cx + fontWidth > lcdGetWidth())
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lcdLineBreak();
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for(x = 0; x < fontWidth; x++) {
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chi = *(uint16_t*)ptr;
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for(y = 0; y < fontHeight; y++) {
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if(chi & 0x01)
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lcdDrawPixel(cx+x, cy+y, fgcolor);
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else if(!tpText)
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lcdDrawPixel(cx+x, cy+y, bgcolor);
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chi >>= 1;
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}
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ptr += 2;
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}
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cx += fontWidth;
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if(sps != 0) {
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if(!tpText)
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lcdFillArea(cx, cy, cx+sps, cy+fontHeight, bgcolor);
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cx += sps;
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}
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/* TODO: proper return codes */
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return RDY_OK;
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}
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size_t lcdWriteString(const char *str, size_t n) {
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size_t l = 0;
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for(l = 0; l < n; l++) {
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if(lcdDrawChar(*str++) != RDY_OK)
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break;
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}
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return l;
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}
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size_t lcdPutString(const char *str) {
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size_t l = 0;
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while(*str) {
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if(lcdDrawChar(*str++) != RDY_OK)
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break;
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l++;
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}
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return l;
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}
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void lcdMoveCursor(uint16_t x, uint16_t y, uint16_t color, uint16_t bkcolor) {
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cx = x;
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cy = y;
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bgcolor = bkcolor;
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fgcolor = color;
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}
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void lcdDrawString(uint16_t x, uint16_t y, const char *str, uint16_t color, uint16_t bkcolor) {
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uint16_t _bg = bgcolor, _fg = fgcolor;
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cx = x;
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cy = y;
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bgcolor = bkcolor;
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fgcolor = color;
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lcdPutString(str);
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bgcolor = _bg;
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fgcolor = _fg;
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}
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uint16_t lcdMeasureChar(char c) {
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const uint8_t *ptr;
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// First get spaces after each character, usually 0 but can change
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uint8_t sps = font[FONT_TABLE_PAD_AFTER_CHAR_IDX];
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uint16_t chi;
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if(c < 0x20 || c > 0x7F)
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return 0;
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chi = *(uint16_t*)(&font[FONT_TABLE_CHAR_LOOKUP_IDX + (c-0x20)*2]);
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ptr = font + chi;
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uint8_t fontWidth = *(ptr++);
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return fontWidth + sps;
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}
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uint16_t lcdMeasureString(const char *str) {
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uint16_t result = 0;
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while (*str)result += lcdMeasureChar(*str++);
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return result;
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}
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void lcdLineBreak() {
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// x=0 seems too much on the edge. So I keep it at 3
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cx = 3;
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cy += lcdGetCurFontHeight();
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}
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uint16_t lcdBGR2RGB(uint16_t color) {
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uint16_t r, g, b, rgb;
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b = ( color>>0 ) & 0x1f;
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g = ( color>>5 ) & 0x3f;
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r = ( color>>11 ) & 0x1f;
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rgb = (b<<11) + (g<<5) + (r<<0);
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return( rgb );
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}
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void lcdDrawRect(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint8_t filled, uint16_t color) {
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uint16_t i, TempX;
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uint16_t j, TempY;
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if (x0 > x1) {
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TempX = x1;
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x1 = x0;
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x0 = TempX;
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}
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if (y0 > y1) {
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TempY = y1;
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y1 = y0;
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y0 = TempY;
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}
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if(filled) {
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for(i=x0; i<x1; i++)
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for(j=y0; j<y1; j++)
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lcdDrawPixel(i , j , color);
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} else {
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lcdDrawLine(x0, y0, x1, y0, color);
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lcdDrawLine(x0, y1, x1, y1, color);
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lcdDrawLine(x0, y0, x0, y1, color);
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lcdDrawLine(x1, y0, x1, y1, color);
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}
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}
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void lcdDrawRectString(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, const char *str, uint16_t fontColor, uint16_t bkColor) {
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uint16_t off_left, off_up;
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off_left = ((x1-x0)-lcdMeasureString(str))/2;
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off_up = ((y1-y0) - lcdGetCurFontHeight()) / 2;
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lcdDrawRect(x0, y0, x1, y1, 1, bkColor);
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lcdDrawString(x0+off_left, y0+off_up, str, fontColor, bkColor);
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}
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void lcdDrawCircle(uint16_t x, uint16_t y, uint16_t radius, uint8_t filled, uint16_t color) {
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int16_t a, b, P;
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a = 0;
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b = radius;
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P = 1 - radius;
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do {
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if(filled) {
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lcdDrawLine(x-a, y+b, x+a, y+b, color);
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lcdDrawLine(x-a, y-b, x+a, y-b, color);
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lcdDrawLine(x-b, y+a, x+b, y+a, color);
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lcdDrawLine(x-b, y-a, x+b, y-a, color);
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} else {
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lcdDrawPixel(a+x, b+y, color);
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lcdDrawPixel(b+x, a+y, color);
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lcdDrawPixel(x-a, b+y, color);
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lcdDrawPixel(x-b, a+y, color);
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lcdDrawPixel(b+x, y-a, color);
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lcdDrawPixel(a+x, y-b, color);
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lcdDrawPixel(x-a, y-b, color);
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lcdDrawPixel(x-b, y-a, color);
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}
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if(P < 0)
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P += 3 + 2*a++;
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else
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P += 5 + 2*(a++ - b--);
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} while(a <= b);
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}
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