diff options
Diffstat (limited to 'libgamma_x_vidmode_crtc_set_gamma_ramps16.c')
| -rw-r--r-- | libgamma_x_vidmode_crtc_set_gamma_ramps16.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/libgamma_x_vidmode_crtc_set_gamma_ramps16.c b/libgamma_x_vidmode_crtc_set_gamma_ramps16.c new file mode 100644 index 0000000..6ad18fc --- /dev/null +++ b/libgamma_x_vidmode_crtc_set_gamma_ramps16.c @@ -0,0 +1,26 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" + + +/** + * Set the gamma ramps for a CRTC, 16-bit gamma-depth version + * + * @param this The CRTC state + * @param ramps The gamma ramps to apply + * @return Zero on success, otherwise (negative) the value of an + * error identifier provided by this library + */ +int +libgamma_x_vidmode_crtc_set_gamma_ramps16(libgamma_crtc_state_t *restrict this, const libgamma_gamma_ramps16_t *restrict ramps) +{ +#ifdef DEBUG + /* Gamma ramp sizes are identical but not fixed */ + if (ramps->red_size != ramps->green_size || ramps->red_size != ramps->blue_size) + return LIBGAMMA_MIXED_GAMMA_RAMP_SIZE; +#endif + /* Apply gamma ramps */ + if (!XF86VidModeSetGammaRamp((Display *)this->partition->site->data, (int)this->partition->partition, + (int)ramps->red_size, ramps->red, ramps->green, ramps->blue)) + return LIBGAMMA_GAMMA_RAMP_WRITE_FAILED; + return 0; +} |