diff options
Diffstat (limited to 'src/calibrator.c')
| -rw-r--r-- | src/calibrator.c | 220 |
1 files changed, 216 insertions, 4 deletions
diff --git a/src/calibrator.c b/src/calibrator.c index b06e64c..32acb44 100644 --- a/src/calibrator.c +++ b/src/calibrator.c @@ -199,7 +199,76 @@ void draw_gamma(void) } -static int read_calibs(void) +/** + * Print a pattern on the screen that can be used when + * calibrating the convergence + */ +void draw_convergence(void) +{ + uint32_t black = fb_colour(0, 0, 0); + uint32_t white = fb_colour(255, 255, 255); + uint32_t x, y; + size_t f; + for (f = 0; f < framebuffer_count; f++) + { + framebuffer_t* restrict fb = framebuffers + f; + fb_fill_rectangle(fb, black, 0, 0, fb->width, fb->height); + for (y = 0; y <= fb->height; y += 16) + { + if (y == fb->height) + y = fb->height - 1; + for (x = 0; x <= fb->width; x += 16) + { + if (x == fb->height) + x = fb->height - 1; + fb_draw_pixel(fb, white, x, y); + } + } + } +} + + +/** + * Print a pattern on the screen that can be used when + * calibrating the moiré cancellation + * + * @param gap The horizontal and vertical gap, in pixels, between the dots + * @param diagonal Whether to draw dots in a diagonal pattern + */ +void draw_moire(uint32_t gap, int diagonal) +{ + uint32_t black = fb_colour(0, 0, 0); + uint32_t white = fb_colour(255, 255, 255); + uint32_t x, y, gap2 = gap << 1; + size_t f; + gap += (uint32_t)(!diagonal); + if (diagonal) + for (f = 0; f < framebuffer_count; f++) + { + framebuffer_t* restrict fb = framebuffers + f; + fb_fill_rectangle(fb, black, 0, 0, fb->width, fb->height); + for (y = 0; y < fb->height; y += gap) + for (x = (y % gap2); x < fb->width; x += gap2) + fb_draw_pixel(fb, white, x, y); + } + else + for (f = 0; f < framebuffer_count; f++) + { + framebuffer_t* restrict fb = framebuffers + f; + fb_fill_rectangle(fb, black, 0, 0, fb->width, fb->height); + for (y = 0; y < fb->height; y += gap) + for (x = 0; x < fb->width; x += gap) + fb_draw_pixel(fb, white, x, y); + } +} + + +/** + * Analyse the monitors calibrations + * + * @return Zero on success, -1 on error + */ +int read_calibs(void) { size_t c; for (c = 0; c < crtc_count; c++) @@ -218,7 +287,12 @@ static int read_calibs(void) } -static int apply_calibs(void) +/** + * Apply the selected calibrations to the monitors + * + * @return Zero on success, -1 on error + */ +int apply_calibs(void) { size_t c; for (c = 0; c < crtc_count; c++) @@ -237,13 +311,61 @@ static int apply_calibs(void) } -int main(int argc __attribute__((unused)), char* argv[]) +/** + * Print calibrations into a file + * + * @param f The file + * @return Zero on success, -1 on error + */ +int save_calibs(FILE* f) { + size_t c; + for (c = 0; c < crtc_count; c++) + { + if (fprintf(f, "# index = %lu\n", + c) < 0) + return -1; + + if (fprintf(f, "edid = %s\n", + crtcs[c].edid) < 0) + return -1; + + if (fprintf(f, "brightness = %f:%f:%f\n", + brightnesses[0][c], + brightnesses[1][c], + brightnesses[2][c]) < 0) + return -1; + + if (fprintf(f, "contrast = %f:%f:%f\n", + contrasts[0][c], + contrasts[1][c], + contrasts[2][c]) < 0) + return -1; + + if (fprintf(f, "gamma = %f:%f:%f\n\n", + gammas[0][c], + gammas[1][c], + gammas[2][c]) < 0) + return -1; + } + return 0; +} + + +int main(int argc, char* argv[]) +{ + FILE* output_file = stdout; int tty_configured = 0, rc = 0, in_fork = 0; struct termios saved_stty; struct termios stty; pid_t pid; + if ((argc > 2) || ((argc == 2) && (argv[1][0] == '-'))) + { + printf("USAGE: %s [output-file]\n", *argv); + return 0; + } + if ((acquire_video() < 0) || (tcgetattr(STDIN_FILENO, &saved_stty) < 0) || (tcgetattr(STDIN_FILENO, &stty) < 0)) @@ -487,6 +609,9 @@ int main(int argc __attribute__((unused)), char* argv[]) gammas[0][mon] -= (double)red / 100; gammas[1][mon] -= (double)green / 100; gammas[2][mon] -= (double)blue / 100; + if (gammas[0][mon] < 0) gammas[0][mon] = 0; + if (gammas[1][mon] < 0) gammas[1][mon] = 0; + if (gammas[2][mon] < 0) gammas[2][mon] = 0; } else if (c == 'C') mon = (mon + 1) % crtc_count; @@ -504,13 +629,100 @@ int main(int argc __attribute__((unused)), char* argv[]) } } + printf("\033[H\033[2J"); + printf("The next step is to calibrate the monitors'\n"); + printf("convergence settings using the monitors'\n"); + printf("control panel. White dots will be printed on the\n"); + printf("screens, you should try to get as many as\n"); + printf("possible of them to appear as pure white dots\n"); + printf("rather than dots splitted in the red, green and\n"); + printf("blue dots. On most CRT monitors this is not\n"); + printf("possible to get all corners perfect.\n"); + printf("\n"); + printf("Press ENTER to continue, and ENTER again when\n"); + printf("your are done.\n"); + fflush(stdout); + + while (getchar() != 10) + ; + + printf("\033[H\033[2J"); + fflush(stdout); + draw_convergence(); + + while (getchar() != 10) + ; + + printf("\033[H\033[2J"); + printf("The final step is to calbirate the monitors' moiré\n"); + printf("cancellation. This too is done on the using the\n"); + printf("monitors' control panel.\n"); + printf("\n"); + printf("You can use <d> and the arrow keys to change the\n"); + printf("dot-pattern on the screens.\n"); + printf("\n"); + printf("Press ENTER to continue, and ENTER again when\n"); + printf("your are done.\n"); + fflush(stdout); + + while (getchar() != 10) + ; + + printf("\033[H\033[2J"); + fflush(stdout); + draw_moire(1, 1); + + { + int c, b = 0, d = 1; + uint32_t gap = 1; + while ((c = getchar()) != 10) + { + if (b) + { + b = 0; + if ((c == 'A') || (c == 'C')) + draw_moire(++gap, d); + else if ((c == 'B') || (c == 'D')) + { + if (--gap == 0) + gap = 1; + draw_moire(gap, d); + } + } + else if (c == '[') + b = 1; + else if (c == 'd') + draw_moire(gap, d ^= 1); + } + } + + printf("\033[H\033[2J"); + fflush(stdout); + + if (argc == 2) + { + output_file = fopen(argv[1], "w"); + if (output_file == NULL) + goto fail; + } + + if (save_calibs(output_file) < 0) + goto fail; + fflush(output_file); + + if (argc == 2) + { + if (fclose(output_file)) + goto fail; + } + done: if (in_fork == 0) { release_video(); if (tty_configured) tcsetattr(STDIN_FILENO, TCSAFLUSH, &saved_stty); - printf("\033[H\033[2J\033[?25h"); + printf("\033[?25h"); fflush(stdout); } return rc; |