diff options
Diffstat (limited to 'laser-tag software/main.c')
| -rw-r--r-- | laser-tag software/main.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/laser-tag software/main.c b/laser-tag software/main.c index 7bb633b..cccd32f 100644 --- a/laser-tag software/main.c +++ b/laser-tag software/main.c @@ -258,6 +258,25 @@ static uint8_t laser_on; static uint8_t seizure_on = 1; static uint32_t shift0_buf[3]; static uint32_t blank_led; +static uint8_t image0[232 * 128 / 8]; +static uint8_t image1[232 * 128 / 8]; + +void read_sun_raster(uint8_t *in, uint8_t *out) +{ + int x, y; + int stride = (232 + 15) / 16 * 16; + + in += 32; /* skip header, don't even check it */ + for (y = 0; y < 128; ++y) { + for (x = 0; x < 232; x += 8) { + uint8_t v = in[(y * stride + x) / 8]; + v = ((v >> 1) & 0x55) | ((v & 0x55) << 1); + v = ((v >> 2) & 0x33) | ((v & 0x33) << 2); + v = ((v >> 4) & 0x0F) | ((v & 0x0F) << 4); + out[(y * 232 + x) / 8] = v; + } + } +} void led(uint8_t red, uint8_t green, uint8_t blue) { @@ -570,7 +589,8 @@ int main (void) EPD_Init(); /* Throw up first image */ - int ret = EPD_Draw(NULL, images[current_image]); + read_sun_raster(images[current_image], image0); + int ret = EPD_Draw(NULL, image0); debug_printf("EPD_Draw returned %d\r\n", ret); if (-1 == ret) { led(0xff, 0x00, 0x00); @@ -598,7 +618,9 @@ int main (void) int old_image = current_image; current_image = (current_image + 1) % IMAGE_COUNT; debug_printf("drawing %d -> %d\r\n", old_image, current_image); - EPD_Draw(images[old_image], images[current_image]); + read_sun_raster(images[old_image], image0); + read_sun_raster(images[current_image], image1); + EPD_Draw(image0, image1); cue_next_image = 0; } #ifndef DEBUG |