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authorMattias Andrée <maandree@operamail.com>2014-08-07 21:02:22 +0200
committerMattias Andrée <maandree@operamail.com>2014-08-07 21:02:22 +0200
commit9a8b41ff8570fe25101cb8375903307439c2dbfa (patch)
tree1ac37bd2f813063c191b5281e4895f296524db4a
parentm (diff)
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m + doc
Signed-off-by: Mattias Andrée <maandree@operamail.com>
-rw-r--r--src/calibrator.c37
-rw-r--r--src/calibrator.h38
2 files changed, 71 insertions, 4 deletions
diff --git a/src/calibrator.c b/src/calibrator.c
index e978ccf..67e8346 100644
--- a/src/calibrator.c
+++ b/src/calibrator.c
@@ -25,7 +25,13 @@
-static int draw_contrast_brightness(void)
+/**
+ * Draw bars in different shades of grey, red, green and blue
+ * used for calibrating the contrast and brightness
+ *
+ * @return Zero on success, -1 on error
+ */
+int draw_contrast_brightness(void)
{
const int CONTRAST_BRIGHTNESS_LEVELS[21] =
{
@@ -57,7 +63,15 @@ static int draw_contrast_brightness(void)
}
-static void draw_digit(framebuffer_t* restrict fb, int colour, uint32_t x, uint32_t y)
+/**
+ * Draw a seven segment display
+ *
+ * @param fb The framebuffer to draw on
+ * @param colour The intensity of the least intense colour to use
+ * @param x The X component of the top left corner of the seven segment display
+ * @param y The Y component of the top left corner of the seven segment display
+ */
+void draw_digit(framebuffer_t* restrict fb, int colour, uint32_t x, uint32_t y)
{
uint32_t c;
@@ -84,7 +98,17 @@ static void draw_digit(framebuffer_t* restrict fb, int colour, uint32_t x, uint3
}
-static int gamma_digit(drm_crtc_t* restrict crtc, int colour, size_t value)
+/**
+ * Manipulate a CRT controllers gamma ramps to display a specific digit
+ * for one of the seven segment display on only that CRT controller's
+ * monitors
+ *
+ * @param crtc The CRT controller information
+ * @param colour The intensity of the least intense colour in the seven segment display
+ * @param value The valud of the digit to display
+ * @return Zero on success, -1 on error
+ */
+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) */
@@ -110,7 +134,12 @@ static int gamma_digit(drm_crtc_t* restrict crtc, int colour, size_t value)
}
-static int draw_id(void)
+/**
+ * Draw an unique index on each monitor
+ *
+ * @return Zero on success, -1 on error
+ */
+int draw_id(void)
{
size_t f, c, i, id = 0, fn = fb_count(), cn = drm_card_count();
for (f = 0; f < fn; f++)
diff --git a/src/calibrator.h b/src/calibrator.h
index 4e8ce5d..2c372c5 100644
--- a/src/calibrator.h
+++ b/src/calibrator.h
@@ -19,5 +19,43 @@
#define CRT_CALIBRATOR_CALIBRATOR_H
+/**
+ * Draw bars in different shades of grey, red, green and blue
+ * used for calibrating the contrast and brightness
+ *
+ * @return Zero on success, -1 on error
+ */
+int draw_contrast_brightness(void);
+
+/**
+ * Draw a seven segment display
+ *
+ * @param fb The framebuffer to draw on
+ * @param colour The intensity of the least intense colour to use
+ * @param x The X component of the top left corner of the seven segment display
+ * @param y The Y component of the top left corner of the seven segment display
+ */
+void draw_digit(framebuffer_t* restrict fb, int colour, uint32_t x, uint32_t y);
+
+/**
+ * Manipulate a CRT controllers gamma ramps to display a specific digit
+ * for one of the seven segment display on only that CRT controller's
+ * monitors
+ *
+ * @param crtc The CRT controller information
+ * @param colour The intensity of the least intense colour in the seven segment display
+ * @param value The valud of the digit to display
+ * @return Zero on success, -1 on error
+ */
+int gamma_digit(drm_crtc_t* restrict crtc, int colour, size_t value);
+
+/**
+ * Draw an unique index on each monitor
+ *
+ * @return Zero on success, -1 on error
+ */
+int draw_id(void);
+
+
#endif