diff options
Diffstat (limited to 'src/calibrator.c')
| -rw-r--r-- | src/calibrator.c | 141 |
1 files changed, 125 insertions, 16 deletions
diff --git a/src/calibrator.c b/src/calibrator.c index 735d929..663256b 100644 --- a/src/calibrator.c +++ b/src/calibrator.c @@ -31,31 +31,140 @@ static const int CONTRAST_BRIGHTNESS_LEVELS[21] = }; -int main(int argc __attribute__((unused)), char* argv[]) +static int draw_contrast_brightness(void) { size_t f, y, x, fn = fb_count(); for (f = 0; f < fn; f++) { framebuffer_t fb; if (fb_open(f, &fb) < 0) - goto fail; - + return -1; for (y = 0; y < 4; y++) - for (x = 0; x < 21; x++) - { - int v = CONTRAST_BRIGHTNESS_LEVELS[x]; - uint32_t colour = fb_colour(v * ((y == 1) | (y == 0)), - v * ((y == 2) | (y == 0)), - v * ((y == 3) | (y == 0))); - fb_fill_rectangle(&fb, colour, - x * fb.width / 21, - y * fb.height / 4, - (x + 1) * fb.width / 21 - x * fb.width / 21, - (y + 1) * fb.height / 4 - y * fb.height / 4); - } - + for (x = 0; x < 21; x++) + { + int v = CONTRAST_BRIGHTNESS_LEVELS[x]; + uint32_t colour = fb_colour(v * ((y == 1) | (y == 0)), + v * ((y == 2) | (y == 0)), + v * ((y == 3) | (y == 0))); + fb_fill_rectangle(&fb, colour, + x * fb.width / 21, + y * fb.height / 4, + (x + 1) * fb.width / 21 - x * fb.width / 21, + (y + 1) * fb.height / 4 - y * fb.height / 4); + } + fb_close(&fb); + } + return 0; +} + + +static void draw_digit(framebuffer_t* restrict fb, int colour, uint32_t x, uint32_t y) +{ + uint32_t c; + + c = fb_colour(colour + 0, colour + 0, colour + 0); + fb_fill_rectangle(fb, c, x + 20, y, 80, 20); + + c = fb_colour(colour + 1, colour + 1, colour + 1); + fb_fill_rectangle(fb, c, x, y + 20, 20, 80); + + c = fb_colour(colour + 2, colour + 2, colour + 2); + fb_fill_rectangle(fb, c, x + 100, y + 20, 20, 80); + + c = fb_colour(colour + 3, colour + 3, colour + 3); + fb_fill_rectangle(fb, c, x + 20, y + 100, 80, 20); + + c = fb_colour(colour + 4, colour + 4, colour + 4); + fb_fill_rectangle(fb, c, x, y + 120, 20, 80); + + c = fb_colour(colour + 5, colour + 5, colour + 5); + fb_fill_rectangle(fb, c, x + 100, y + 120, 20, 80); + + c = fb_colour(colour + 6, colour + 6, colour + 6); + fb_fill_rectangle(fb, c, x + 20, y + 200, 80, 20); +} + + +static int gamma_digit(drm_crtc_t* restrict crtc, int colour, size_t value) +{ +#define _ 0 + const int DIGITS[11] = { 1 | 2 | 4 | _ | 16 | 32 | 64, /* (0) */ + _ | _ | 4 | _ | _ | 32 | _, /* (1) */ + 1 | _ | 4 | 8 | 16 | _ | 64, /* (2) */ + 1 | _ | 4 | 8 | _ | 32 | 64, /* (3) */ + _ | 2 | 4 | 8 | _ | 32 | _, /* (4) */ + 1 | 2 | _ | 8 | _ | 32 | 64, /* (5) */ + 1 | 2 | _ | 8 | 16 | 32 | 64, /* (6) */ + 1 | _ | 4 | _ | _ | 32 | _, /* (7) */ + 1 | 2 | 4 | 8 | 16 | 32 | 64, /* (8) */ + 1 | 2 | 4 | 8 | _ | 32 | 64, /* (9) */ + _ | _ | _ | _ | _ | _ | _}; /* not visible */ + int i, digit = DIGITS[value]; + + for (i = 0; i < 7; i++) + { + uint16_t value = (digit & (1 << i)) ? 0xFFFF : 0; + int j = i + colour; + crtc->red[j] = crtc->green[j] = crtc->blue[j] = value; + } +#undef _ +} + + +static int draw_id(void) +{ + size_t f, c, i, id = 0, fn = fb_count(), cn = drm_card_count(); + for (f = 0; f < fn; f++) + { + framebuffer_t fb; + if (fb_open(f, &fb) < 0) + return -1; + fb_fill_rectangle(&fb, fb_colour(0, 0, 0), 0, 0, fb.width, fb.height); + draw_digit(&fb, 1, 40, 40); + draw_digit(&fb, 8, 180, 40); fb_close(&fb); } + for (c = 0; c < cn; c++) + { + drm_card_t card; + if (drm_card_open(c, &card) < 0) + return -1; + for (i = 0; i < card.crtc_count; i++) + { + drm_crtc_t crtc; + if (drm_crtc_open(i, &card, &crtc) < 0) + { + drm_card_close(&card); + return -1; + } + if (crtc.connected == 0) + goto not_connected; + if (drm_get_gamma(&crtc) < 0) + goto crtc_fail; + gamma_digit(&crtc, 1, id < 10 ? 10 : (id / 10) % 10); + gamma_digit(&crtc, 8, (id / 1) % 10); + id++; + if (drm_set_gamma(&crtc) < 0) + goto crtc_fail; + not_connected: + drm_crtc_close(&crtc); + + continue; + crtc_fail: + drm_crtc_close(&crtc); + drm_card_close(&card); + return -1; + } + drm_card_close(&card); + } + return 0; +} + + +int main(int argc __attribute__((unused)), char* argv[]) +{ + if (draw_id() < 0) + goto fail; return 0; fail: |