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app: add function to draw character on RGB panel

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King Kévin 2022-05-25 19:57:44 +02:00
parent c73600c91f
commit 759cfd577e
1 changed files with 43 additions and 1 deletions
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44
application.c
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@ -35,6 +35,7 @@
#include "usb_cdcacm.h" // USB CDC ACM utilities
#include "terminal.h" // handle the terminal interface
#include "menu.h" // menu utilities
#include "font.h" // to draw text
/** watchdog period in ms */
#define WATCHDOG_PERIOD 10000
@ -146,7 +147,6 @@ static void rgbmatrix_clear(void)
* @param[in] r if the red LED should be on
* @param[in] g if the green LED should be on
* @param[in] b if the blue LED should be on
* @note this does not send the data to the matrix
*/
static void rgbmatrix_set(uint8_t x, uint8_t y, bool r, bool g, bool b)
{
@ -190,6 +190,45 @@ static void rgbmatrix_set(uint8_t x, uint8_t y, bool r, bool g, bool b)
rgbmatrix_data[row][col + 1] |= data; // set the LED data on clock high edge
}
/** draw character on RGB matrix
* @param[in] x horizontal position (0 = left)
* @param[in] y vertical position (0 = top)
* @param[in] c character to draw
* @param[in] font font to use
* @param[in] r if the character should be drawn in red
* @param[in] g if the character should be drawn in green
* @param[in] b if the character should be drawn in blue
*/
static void rgbmatrix_putc(uint8_t x, uint8_t y, char c, enum font_name font, bool red, bool green, bool blue)
{
// sanity checks
if (x >= RGBMATRIX_WIDTH) {
return;
}
if (y >= RGBMATRIX_HEIGHT) {
return;
}
if (font >= FONT_MAX) {
return;
}
if (c < ' ' || c > '~') {
return;
}
// draw character on buffer
for (uint8_t col = 0; col < fonts[font].width; col++) {
const uint16_t column = fonts[font].glyphs[(c - ' ') * fonts[font].width + col];
for (uint8_t row = 0; row < fonts[font].height; row++) {
const bool dot = (column >> (fonts[font].height - 1 - row)) & 0x01;
if (dot) {
rgbmatrix_set(x + col, y + row, red, green, blue);
} else {
rgbmatrix_set(x + col, y + row, false, false, false);
}
}
}
}
size_t putc(char c)
{
size_t length = 0; // number of characters printed
@ -800,6 +839,9 @@ void main(void)
int32_t speed = 300;
command_speed(&speed);
// draw welcome text
rgbmatrix_putc(1, 1, 'D', FONT_KING14, false, true, false);
// start main loop
bool action = false; // if an action has been performed don't go to sleep
button_flag = false; // reset button flag