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ledmatrix: bugfix scrolling

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This commit is contained in:
Verkehrsrot 2019-08-18 22:16:35 +02:00
parent 526fc2900c
commit 012bf545c4
2 changed files with 19 additions and 14 deletions
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2
include/ledmatrixdisplay.h
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@ -13,6 +13,6 @@ void refreshTheMatrixDisplay(bool nextPage = false);
void DrawNumber(String strNum, uint8_t iDotPos = 0);
uint8_t GetCharFromFont(char cChar);
uint8_t GetCharWidth(char cChar);
void ShiftLeft(uint8_t *arr, uint32_t len);
void ScrollLeft(uint8_t *buf, uint16_t cols, uint16_t rows);
#endif

31
src/ledmatrixdisplay.cpp
View File

@ -2,16 +2,14 @@
#include "globals.h"
#define NUMROWS 16
#define NUMCOLS 64
#define MATRIX_DISPLAY_PAGES (2) // number of display pages
#define LINE_DIAGRAM_DIVIDER (2) // scales pax numbers to led rows
// local Tag for logging
static const char TAG[] = __FILE__;
static const uint32_t DisplaySize = LED_MATRIX_WIDTH * LED_MATRIX_HEIGHT / 8;
uint8_t MatrixDisplayIsOn = 0, displaybuf[DisplaySize] = {0};
uint8_t MatrixDisplayIsOn = 0;
static uint8_t displaybuf[LED_MATRIX_WIDTH * LED_MATRIX_HEIGHT / 8] = {0};
static unsigned long ulLastNumMacs = 0;
static time_t ulLastTime = myTZ.toLocal(now());
@ -40,7 +38,7 @@ void init_matrix_display(bool reverse) {
if (reverse)
matrix.reverse();
matrix.clear();
matrix.drawPoint(0, NUMROWS - 1, 1);
matrix.drawPoint(0, LED_MATRIX_HEIGHT - 1, 1);
} // init_display
void refreshTheMatrixDisplay(bool nextPage) {
@ -93,10 +91,10 @@ void refreshTheMatrixDisplay(bool nextPage) {
if (macs.size() == 0) {
// matrix full? then scroll left 1 dot, else increment column
if (col < NUMCOLS - 1)
if (col < (LED_MATRIX_WIDTH - 1))
col++;
else
ShiftLeft(displaybuf, DisplaySize);
ScrollLeft(displaybuf, LED_MATRIX_WIDTH, LED_MATRIX_HEIGHT);
} else
matrix.drawPoint(col, row, 0); // clear current dot
@ -104,7 +102,9 @@ void refreshTheMatrixDisplay(bool nextPage) {
// scale and set new dot
ulLastNumMacs = macs.size();
level = ulLastNumMacs / LINE_DIAGRAM_DIVIDER;
row = level <= NUMROWS ? NUMROWS - 1 - level % NUMROWS : 0;
row = level <= LED_MATRIX_HEIGHT
? LED_MATRIX_HEIGHT - 1 - level % LED_MATRIX_HEIGHT
: 0;
matrix.drawPoint(col, row, 1);
}
}
@ -204,12 +204,17 @@ uint8_t GetCharWidth(char cChar) {
return CharDescriptor.width;
}
void ShiftLeft(uint8_t *arr, uint32_t len) {
uint32_t i;
for (i = 0; i < len - 1; ++i) {
arr[i] = (arr[i] << 1) | ((arr[i + 1] >> 31) & 1);
void ScrollLeft(uint8_t *buf, uint16_t cols, uint16_t rows) {
uint32_t i, k, idx;
for (k = 0; k < rows; k++) {
// scroll a line with x bytes one dot to the left
for (i = 0; i < cols / 8 - 1; ++i) {
idx = i + k * cols / 8;
buf[idx] = (buf[idx] << 1) | ((buf[idx + 1] >> 7) & 1);
}
buf[idx + 1] <<= 1;
}
arr[len - 1] = arr[len - 1] << 1;
}
#endif // HAS_MATRIX_DISPLAY