From 4e7b24639808e5e1e2c05143028db1a3bc2812e9 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 2 Jun 2008 14:04:41 +1000 Subject: drm: add functions to get/set gamma ramps --- libdrm/xf86drmMode.c | 36 ++++++++++++++++++++++++++++++++++++ libdrm/xf86drmMode.h | 5 +++++ 2 files changed, 41 insertions(+) (limited to 'libdrm') diff --git a/libdrm/xf86drmMode.c b/libdrm/xf86drmMode.c index d11fc12e..a393f965 100644 --- a/libdrm/xf86drmMode.c +++ b/libdrm/xf86drmMode.c @@ -657,3 +657,39 @@ int drmModeReplaceFB(int fd, uint32_t buffer_id, return 0; } + +int drmModeCrtcGetGamma(int fd, uint32_t crtc_id, uint32_t size, + uint16_t *red, uint16_t *green, uint16_t *blue) +{ + int ret; + struct drm_mode_crtc_lut l; + + l.crtc_id = crtc_id; + l.gamma_size = size; + l.red = VOID2U64(red); + l.green = VOID2U64(green); + l.blue = VOID2U64(blue); + + if ((ret = ioctl(fd, DRM_IOCTL_MODE_GETGAMMA, &l))) + return ret; + + return 0; +} + +int drmModeCrtcSetGamma(int fd, uint32_t crtc_id, uint32_t size, + uint16_t *red, uint16_t *green, uint16_t *blue) +{ + int ret; + struct drm_mode_crtc_lut l; + + l.crtc_id = crtc_id; + l.gamma_size = size; + l.red = VOID2U64(red); + l.green = VOID2U64(green); + l.blue = VOID2U64(blue); + + if ((ret = ioctl(fd, DRM_IOCTL_MODE_SETGAMMA, &l))) + return ret; + + return 0; +} diff --git a/libdrm/xf86drmMode.h b/libdrm/xf86drmMode.h index 2f3a8f74..56908d8f 100644 --- a/libdrm/xf86drmMode.h +++ b/libdrm/xf86drmMode.h @@ -263,3 +263,8 @@ extern void drmModeFreePropertyBlob(drmModePropertyBlobPtr ptr); extern int drmModeConnectorSetProperty(int fd, uint32_t connector_id, uint32_t property_id, uint64_t value); extern int drmCheckModesettingSupported(const char *busid); + +extern int drmModeCrtcSetGamma(int fd, uint32_t crtc_id, uint32_t size, + uint16_t *red, uint16_t *green, uint16_t *blue); +extern int drmModeCrtcGetGamma(int fd, uint32_t crtc_id, uint32_t size, + uint16_t *red, uint16_t *green, uint16_t *blue); -- cgit v1.2.3