diff options
Diffstat (limited to '')
| -rw-r--r-- | libgamma_w32_gdi_crtc_get_gamma_ramps16.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/libgamma_w32_gdi_crtc_get_gamma_ramps16.c b/libgamma_w32_gdi_crtc_get_gamma_ramps16.c new file mode 100644 index 0000000..64218d7 --- /dev/null +++ b/libgamma_w32_gdi_crtc_get_gamma_ramps16.c @@ -0,0 +1,27 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" + + +/** + * Get the current gamma ramps for a CRTC, 16-bit gamma-depth version + * + * @param this The CRTC state + * @param ramps The gamma ramps to fill with the current values + * @return Zero on success, otherwise (negative) the value of an + * error identifier provided by this library + */ +int +libgamma_w32_gdi_crtc_get_gamma_ramps16(libgamma_crtc_state_t *restrict this, libgamma_gamma_ramps16_t *restrict ramps) +{ +#ifdef DEBUG + /* Windows GDI have fixed gamma ramp sizes */ + if (ramps-> red_size != W32_GDI_GAMMA_RAMP_SIZE || + ramps->green_size != W32_GDI_GAMMA_RAMP_SIZE || + ramps-> blue_size != W32_GDI_GAMMA_RAMP_SIZE) + return LIBGAMMA_WRONG_GAMMA_RAMP_SIZE; +#endif + /* Read current gamma ramps */ + if (!GetDeviceGammaRamp(this->data, ramps->red)) + return LIBGAMMA_GAMMA_RAMP_READ_FAILED; + return 0; +} |