Add framebuffer dirty command

4 files changed, 41 insertions, 0 deletions

diff --git a/libdrm/xf86drmMode.c b/libdrm/xf86drmMode.c
index ea11207e..d1f2d60e 100644
--- a/libdrm/xf86drmMode.c
+++ b/libdrm/xf86drmMode.c
@@ -237,6 +237,18 @@ drmModeFBPtr drmModeGetFB(int fd, uint32_t buf)
 	return r;
 }
 
+int drmModeDirtyFB(int fd, uint32_t bufferId,
+		   drmModeClipPtr clips, uint32_t num_clips)
+{
+	struct drm_mode_fb_dirty_cmd dirty = { 0 };
+
+	dirty.fb_id = bufferId;
+	dirty.clips_ptr = VOID2U64(clips);
+	dirty.num_clips = num_clips;
+
+	return drmIoctl(fd, DRM_IOCTL_MODE_DIRTYFB, &dirty);
+}
+
 
 /*
  * Crtc functions
diff --git a/libdrm/xf86drmMode.h b/libdrm/xf86drmMode.h
index 62304bb9..b15803f9 100644
--- a/libdrm/xf86drmMode.h
+++ b/libdrm/xf86drmMode.h
@@ -185,6 +185,11 @@ typedef struct _drmModeFB {
 	uint32_t handle;
 } drmModeFB, *drmModeFBPtr;
 
+typedef struct _drmModeClip {
+	uint16_t x, y;
+	uint16_t width, height;
+} drmModeClip, *drmModeClipPtr;
+
 typedef struct _drmModePropertyBlob {
 	uint32_t id;
 	uint32_t length;
@@ -293,6 +298,13 @@ extern int drmModeAddFB(int fd, uint32_t width, uint32_t height, uint8_t depth,
  */
 extern int drmModeRmFB(int fd, uint32_t bufferId);
 
+/**
+ * Mark a region of a framebuffer as dirty.
+ */
+extern int drmModeDirtyFB(int fd, uint32_t bufferId,
+			  drmModeClipPtr clips, uint32_t num_clips);
+
+
 /*
  * Crtc functions
  */
diff --git a/shared-core/drm.h b/shared-core/drm.h
index d97844f8..d597c784 100644
--- a/shared-core/drm.h
+++ b/shared-core/drm.h
@@ -795,6 +795,7 @@ struct drm_gem_open {
 #define DRM_IOCTL_MODE_GETFB		DRM_IOWR(0xAD, struct drm_mode_fb_cmd)
 #define DRM_IOCTL_MODE_ADDFB		DRM_IOWR(0xAE, struct drm_mode_fb_cmd)
 #define DRM_IOCTL_MODE_RMFB		DRM_IOWR(0xAF, uint32_t)
+#define DRM_IOCTL_MODE_DIRTYFB		DRM_IOWR(0xB0, struct drm_mode_fb_dirty_cmd)
 
 /*@}*/
 
diff --git a/shared-core/drm_mode.h b/shared-core/drm_mode.h
index 9b92733d..07f78839 100644
--- a/shared-core/drm_mode.h
+++ b/shared-core/drm_mode.h
@@ -227,6 +227,22 @@ struct drm_mode_fb_cmd {
 	uint32_t handle;
 };
 
+struct drm_mode_fb_dirty_cmd {
+	uint32_t fb_id;
+	uint32_t flags;
+	uint32_t num_clips;
+	uint32_t reserved1;
+	uint64_t reserved2;
+	uint64_t clips_ptr;
+};
+
+struct drm_mode_fb_clip {
+	uint16_t x;
+	uint16_t y;
+	uint16_t width;
+	uint16_t height;
+};
+
 struct drm_mode_mode_cmd {
 	uint32_t connector_id;
 	struct drm_mode_modeinfo mode;