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-rw-r--r--src/calibrator.c220
-rw-r--r--src/calibrator.h37
-rw-r--r--src/framebuffer.h17
3 files changed, 270 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;
diff --git a/src/calibrator.h b/src/calibrator.h
index 7fed267..828d780 100644
--- a/src/calibrator.h
+++ b/src/calibrator.h
@@ -65,6 +65,43 @@ int draw_id(void);
*/
void draw_gamma(void);
+/**
+ * Print a pattern on the screen that can be used when
+ * calibrating the convergence
+ */
+void draw_convergence(void);
+
+/**
+ * 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);
+
+/**
+ * Analyse the monitors calibrations
+ *
+ * @return Zero on success, -1 on error
+ */
+int read_calibs(void);
+
+/**
+ * Apply the selected calibrations to the monitors
+ *
+ * @return Zero on success, -1 on error
+ */
+int apply_calibs(void);
+
+/**
+ * Print calibrations into a file
+ *
+ * @param f The file
+ * @return Zero on success, -1 on error
+ */
+int save_calibs(FILE* f);
+
#endif
diff --git a/src/framebuffer.h b/src/framebuffer.h
index 872ff78..11102ff 100644
--- a/src/framebuffer.h
+++ b/src/framebuffer.h
@@ -133,5 +133,22 @@ void fb_draw_vertical_line(framebuffer_t* restrict fb, uint32_t colour,
uint32_t x, uint32_t y, uint32_t length);
+/**
+ * Draw a single on a framebuffer
+ *
+ * @param fb The framebuffer
+ * @param colour The colour to use when drawing the rectangle
+ * @param x The pixel's position on the X axis
+ * @param y The pixel's position on the Y axis
+ */
+static inline void fb_draw_pixel(framebuffer_t* restrict fb, uint32_t colour,
+ uint32_t x, uint32_t y)
+{
+ int8_t* mem = fb->mem + y * fb->line_length + x * fb->bytes_per_pixel;
+ *(uint32_t*)mem = colour;
+}
+
+
+
#endif
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-21 14:43:56 +0000