VIGS: Implement plane flip/rotate

Planes can now be horizontally/vertically flipped
and rotated by 90, 180 or 270 degrees

Change-Id: I3db7dc3854add2b777e41aed54039a0d2323e0b1
Signed-off-by: Stanislav Vorobiov <s.vorobiov@samsung.com>
Signed-off-by: Vasiliy Ulyanov <v.ulyanov@samsung.com>

4 files changed, 50 insertions, 2 deletions

diff --git a/include/drm/vigs_drm.h b/include/drm/vigs_drm.h
index 7abf0433..24f2a431 100644
--- a/include/drm/vigs_drm.h
+++ b/include/drm/vigs_drm.h
@@ -33,7 +33,7 @@
 /*
  * Bump this whenever driver interface changes.
  */
-#define DRM_VIGS_DRIVER_VERSION 13
+#define DRM_VIGS_DRIVER_VERSION 14
 
 /*
  * Surface access flags.
@@ -151,6 +151,14 @@ struct drm_vigs_plane_set_zpos
     int zpos;
 };
 
+struct drm_vigs_plane_set_transform
+{
+    uint32_t plane_id;
+    int hflip;
+    int vflip;
+    int rotation;
+};
+
 struct drm_vigs_dp_create_surface
 {
     uint32_t dp_plane;
@@ -188,6 +196,7 @@ struct drm_vigs_dp_open_surface
 #define DRM_VIGS_FENCE_SIGNALED 0x0C
 #define DRM_VIGS_FENCE_UNREF 0x0D
 #define DRM_VIGS_PLANE_SET_ZPOS 0x0E
+#define DRM_VIGS_PLANE_SET_TRANSFORM 0x0F
 
 #define DRM_VIGS_DP_CREATE_SURFACE 0x20
 #define DRM_VIGS_DP_OPEN_SURFACE 0x21
@@ -222,6 +231,8 @@ struct drm_vigs_dp_open_surface
             DRM_VIGS_FENCE_UNREF, struct drm_vigs_fence_unref)
 #define DRM_IOCTL_VIGS_PLANE_SET_ZPOS DRM_IOW(DRM_COMMAND_BASE + \
             DRM_VIGS_PLANE_SET_ZPOS, struct drm_vigs_plane_set_zpos)
+#define DRM_IOCTL_VIGS_PLANE_SET_TRANSFORM DRM_IOW(DRM_COMMAND_BASE + \
+            DRM_VIGS_PLANE_SET_TRANSFORM, struct drm_vigs_plane_set_transform)
 
 #define DRM_IOCTL_VIGS_DP_CREATE_SURFACE DRM_IOWR(DRM_COMMAND_BASE + \
             DRM_VIGS_DP_CREATE_SURFACE, struct drm_vigs_dp_create_surface)
diff --git a/vigs/Makefile.am b/vigs/Makefile.am
index 7f17ebbc..eabb2684 100644
--- a/vigs/Makefile.am
+++ b/vigs/Makefile.am
@@ -11,7 +11,7 @@ AM_CFLAGS = \
 
 libdrm_vigs_la_LTLIBRARIES = libdrm_vigs.la
 libdrm_vigs_ladir = $(libdir)
-libdrm_vigs_la_LDFLAGS = -version-number 8:0:0 -no-undefined
+libdrm_vigs_la_LDFLAGS = -version-number 9:0:0 -no-undefined
 libdrm_vigs_la_LIBADD = ../libdrm.la
 
 libdrm_vigs_la_SOURCES = vigs.c
diff --git a/vigs/vigs.c b/vigs/vigs.c
index 5771e24f..02002199 100644
--- a/vigs/vigs.c
+++ b/vigs/vigs.c
@@ -670,6 +670,26 @@ int vigs_drm_plane_set_zpos(struct vigs_drm_device *dev,
     return (ret != 0) ? -errno : 0;
 }
 
+int vigs_drm_plane_set_transform(struct vigs_drm_device *dev,
+                                 uint32_t plane_id,
+                                 int hflip,
+                                 int vflip,
+                                 vigs_drm_rotation rotation)
+{
+    struct drm_vigs_plane_set_transform req =
+    {
+        .plane_id = plane_id,
+        .hflip = hflip,
+        .vflip = vflip,
+        .rotation = rotation
+    };
+    int ret;
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_VIGS_PLANE_SET_TRANSFORM, &req);
+
+    return (ret != 0) ? -errno : 0;
+}
+
 int vigs_drm_dp_surface_create(struct vigs_drm_device *dev,
                                uint32_t dp_plane,
                                uint32_t dp_fb_buf,
diff --git a/vigs/vigs.h b/vigs/vigs.h
index 34e08db0..7453431b 100644
--- a/vigs/vigs.h
+++ b/vigs/vigs.h
@@ -44,6 +44,17 @@ typedef enum
 } vigs_drm_surface_format;
 
 /*
+ * Rotations.
+ */
+typedef enum
+{
+    vigs_drm_rotation_0   = 0x0,
+    vigs_drm_rotation_90  = 0x1,
+    vigs_drm_rotation_180 = 0x2,
+    vigs_drm_rotation_270 = 0x3,
+} vigs_drm_rotation;
+
+/*
  * Surface access flags.
  */
 #define VIGS_DRM_SAF_READ 1
@@ -240,6 +251,12 @@ int vigs_drm_plane_set_zpos(struct vigs_drm_device *dev,
                             uint32_t plane_id,
                             int zpos);
 
+int vigs_drm_plane_set_transform(struct vigs_drm_device *dev,
+                                 uint32_t plane_id,
+                                 int hflip,
+                                 int vflip,
+                                 vigs_drm_rotation rotation);
+
 /*
  * @}
  */