From 9b299132ef8912910df5a90b1628cc3af1efc54d Mon Sep 17 00:00:00 2001 From: Jon Lund Steffensen Date: Sun, 28 Dec 2014 22:58:54 -0500 Subject: colorramp: Use supplied gamma ramps as initial value This changes colorramp_fill() to base the ramp calculations on the existing values in the supplied tables, instead of basing it on a pure `i/size` value computed on the fly. All gamma adjustment methods are changed to explicitly initialize the ramps to the `i/size` value before calls to colorramp_fill(). --- src/gamma-w32gdi.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'src/gamma-w32gdi.c') diff --git a/src/gamma-w32gdi.c b/src/gamma-w32gdi.c index ee603e6..c07ce91 100644 --- a/src/gamma-w32gdi.c +++ b/src/gamma-w32gdi.c @@ -153,6 +153,14 @@ w32gdi_set_temperature(w32gdi_state_t *state, WORD *gamma_g = &gamma_ramps[1*GAMMA_RAMP_SIZE]; WORD *gamma_b = &gamma_ramps[2*GAMMA_RAMP_SIZE]; + /* Initialize gamma ramps to pure state */ + for (int i = 0; i < GAMMA_RAMP_SIZE; i++) { + WORD value = (double)i/GAMMA_RAMP_SIZE * (UINT16_MAX+1); + gamma_r[i] = value; + gamma_g[i] = value; + gamma_b[i] = value; + } + colorramp_fill(gamma_r, gamma_g, gamma_b, GAMMA_RAMP_SIZE, setting); -- cgit v1.2.3-70-g09d2