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-rw-r--r--libdrm/xf86drmMode.c36
-rw-r--r--libdrm/xf86drmMode.h5
2 files changed, 41 insertions, 0 deletions
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);