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Dynamic usb buffer fill for screenframeshort (#1935)

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* fully fill usb serial buffer
* Update usb_serial_shell.cpp
* Added a comment, to trigger wf
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Totoo 2024-03-07 07:42:58 +01:00 committed by GitHub
parent 3bf689f339
commit 9e9dd3a521
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GPG Key ID: B5690EEEBB952194
1 changed files with 19 additions and 8 deletions
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27
firmware/application/usb_serial_shell.cpp
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@ -211,6 +211,7 @@ static void cmd_screenframe(BaseSequentialStream* chp, int argc, char* argv[]) {
chprintf(chp, "ok\r\n");
}
// calculates the 1 byte rgb value, and add 32 to it, so it can be a printable character.
static char getChrFromRgb(uint8_t r, uint8_t g, uint8_t b) {
uint8_t chR = r >> 6; // 3bit
uint8_t chG = g >> 6; // 3bit
@ -220,26 +221,36 @@ static char getChrFromRgb(uint8_t r, uint8_t g, uint8_t b) {
return res;
}
// keep track of a buffer, and sends only if full. not only line by line
static void screenbuffer_helper_add(BaseSequentialStream* chp, char* buffer, size_t& wp, char ch) {
buffer[wp++] = ch;
if (wp > USBSERIAL_BUFFERS_SIZE - 1) {
fillOBuffer(&((SerialUSBDriver*)chp)->oqueue, (const uint8_t*)buffer, USBSERIAL_BUFFERS_SIZE);
wp = 0;
}
}
// sends only 1 byte (printable only) per pixel, so around 96 colors
static void cmd_screenframeshort(BaseSequentialStream* chp, int argc, char* argv[]) {
(void)argc;
(void)argv;
auto evtd = getEventDispatcherInstance();
evtd->enter_shell_working_mode();
char buffer[USBSERIAL_BUFFERS_SIZE];
size_t wp = 0;
for (int y = 0; y < ui::screen_height; y++) {
std::array<ui::ColorRGB888, ui::screen_width> row;
portapack::display.read_pixels({0, y, ui::screen_width, 1}, row);
char buffer[242];
for (int i = 0; i < 240; ++i) {
buffer[i] = getChrFromRgb(row[i].r, row[i].g, row[i].b);
screenbuffer_helper_add(chp, buffer, wp, getChrFromRgb(row[i].r, row[i].g, row[i].b));
}
buffer[240] = '\r';
buffer[241] = '\n';
fillOBuffer(&((SerialUSBDriver*)chp)->oqueue, (const uint8_t*)buffer, 242);
screenbuffer_helper_add(chp, buffer, wp, '\r');
screenbuffer_helper_add(chp, buffer, wp, '\n');
}
if (wp > 0) {
// send remaining
fillOBuffer(&((SerialUSBDriver*)chp)->oqueue, (const uint8_t*)buffer, wp);
}
evtd->exit_shell_working_mode();
chprintf(chp, "\r\nok\r\n");
}