diff --git a/rotate.c b/rotate.c
new file mode 100644
index 0000000..ab0c5d0
--- /dev/null
+++ b/rotate.c
@@ -0,0 +1,234 @@
+/*
+ * Copyright (C) 2017 Samsung Electronics Co.Ltd
+ * Author: Marek Szyprowski <m.szyprowski@samsung.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#define _FILE_OFFSET_BITS 64
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+
+#include <drm/drm.h>
+#include <drm/drm_fourcc.h>
+#include <drm/exynos_drm.h>
+
+#include <xf86drm.h>
+
+struct bo {
+	void *ptr;
+	size_t size;
+	size_t offset;
+	size_t pitch;
+	int width;
+	int height;
+	unsigned int handle;
+	unsigned int fourcc;
+};
+
+struct bo *bo_create(int fd, unsigned int width, unsigned int height,
+			  unsigned int bpp, unsigned int fourcc)
+{
+	struct drm_exynos_gem_create create_arg = { };
+	struct drm_exynos_gem_map map_arg = { };
+	struct bo *bo;
+	int ret;
+
+	bo = calloc(1, sizeof(*bo));
+	if (bo == NULL) {
+		fprintf(stderr, "failed to allocate buffer object\n");
+		return NULL;
+	}
+
+	bo->size = width * height * bpp / 8;
+	bo->pitch = width * bpp / 8;
+	bo->width = width;
+	bo->height = height;
+
+	create_arg.size = bo->size;
+	create_arg.flags = EXYNOS_BO_NONCONTIG;
+
+	if (drmCommandWriteRead(fd, DRM_EXYNOS_GEM_CREATE, &create_arg,
+				sizeof(create_arg))) {
+		fprintf(stderr, "cannot create Exynos GEM object (%d): %m\n",
+			errno);
+		return NULL;
+	}
+
+	bo->handle = create_arg.handle;
+	bo->fourcc = fourcc;
+
+	map_arg.handle = bo->handle;
+
+	if (drmCommandWriteRead(fd, DRM_EXYNOS_GEM_MAP, &map_arg,
+				sizeof(map_arg))) {
+		fprintf(stderr, "cannot map Exynos GEM object (%d): %m\n",
+			errno);
+		return NULL;
+	}
+
+	bo->ptr = mmap(0, bo->size, PROT_READ | PROT_WRITE, MAP_SHARED, fd,
+		       map_arg.offset);
+	if (bo->ptr == MAP_FAILED)
+		return NULL;
+
+	return bo;
+}
+
+void bo_destroy(int fd, struct bo *bo)
+{
+	struct drm_gem_close arg = { };
+	int ret;
+
+	if (bo->ptr)
+		munmap(bo->ptr, bo->size);
+
+	arg.handle = bo->handle;
+	ret = drmIoctl(fd, DRM_IOCTL_GEM_CLOSE, &arg);
+	if (ret)
+		fprintf(stderr, "failed to destroy dumb buffer (%d): %m\n",
+			errno);
+
+	free(bo);
+}
+
+struct bo *bo_create_xrgb(int fd, unsigned int width, unsigned int height)
+{
+	return bo_create(fd, width, height, 32, DRM_FORMAT_XRGB8888);
+}
+
+struct exynos_drm_ipp_std_task {
+	struct drm_exynos_ipp_task_buffer buf[2];
+	struct drm_exynos_ipp_task_rect rect[2];
+	struct drm_exynos_ipp_task_transform transform;
+} __packed;
+
+int process_fb(int fd, struct bo *src_bo, int sx, int sy, int sw, int sh,
+	       struct bo *dst_bo, int dx, int dy, int dw, int dh, int rotation)
+{
+	struct exynos_drm_ipp_std_task task = {	};
+	struct drm_exynos_ioctl_ipp_commit arg = { };
+	uint32_t id = 0; /* hardcoded first available IPP module */
+
+	task.buf[0].id = DRM_EXYNOS_IPP_TASK_BUFFER |
+			 DRM_EXYNOS_IPP_TASK_TYPE_SOURCE;
+	task.buf[0].fourcc = src_bo->fourcc;
+	task.buf[0].width = src_bo->width;
+	task.buf[0].height = src_bo->height;
+	task.buf[0].pitch[0] = src_bo->pitch;
+	task.buf[0].gem_id[0] = src_bo->handle;
+
+	task.buf[1].id = DRM_EXYNOS_IPP_TASK_BUFFER |
+			 DRM_EXYNOS_IPP_TASK_TYPE_DESTINATION;
+	task.buf[1].fourcc = dst_bo->fourcc;
+	task.buf[1].width = dst_bo->width;
+	task.buf[1].height = dst_bo->height;
+	task.buf[1].pitch[0] = dst_bo->pitch;
+	task.buf[1].gem_id[0] = dst_bo->handle;
+
+	task.rect[0].id = DRM_EXYNOS_IPP_TASK_RECTANGLE |
+			  DRM_EXYNOS_IPP_TASK_TYPE_SOURCE;
+	task.rect[0].x = sx;
+	task.rect[0].y = sy;
+	task.rect[0].w = sw;
+	task.rect[0].h = sh;
+
+	task.rect[1].id = DRM_EXYNOS_IPP_TASK_RECTANGLE |
+			  DRM_EXYNOS_IPP_TASK_TYPE_DESTINATION;
+	task.rect[1].x = dx;
+	task.rect[1].y = dy;
+	task.rect[1].w = dw;
+	task.rect[1].h = dh;
+
+	task.transform.id = DRM_EXYNOS_IPP_TASK_TRANSFORM;
+	task.transform.rotation = rotation;
+
+	arg.flags = 0;
+	arg.ipp_id = id;
+	arg.params_size = sizeof(task);
+	arg.params_ptr = (unsigned long)(&task);
+	arg.user_data = 0;
+
+	if (drmCommandWriteRead(fd, DRM_EXYNOS_IPP_COMMIT, &arg, sizeof(arg))) {
+		fprintf(stderr, "failed to commit Exynos IPP task (%d): %m\n",
+			errno);
+		return errno;
+	}
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	struct bo *buf1, *buf2;
+	int fd;
+	int err;
+	int width = 640;
+	int height = 480;
+	int val = 1, x, y;
+
+	fd = open("/dev/dri/card0", O_RDWR);
+
+	buf1 = bo_create_xrgb(fd, width, height);
+	buf2 = bo_create_xrgb(fd, width, height);
+
+	/* draw test pattern to buffer1 */
+	for (y = 0; y < height; y++) {
+		uint32_t *p = buf1->ptr + buf1->pitch * y;
+
+		for (x = 0; x < width; x++) {
+			if (x > y)
+				*p++ = (val++ & 0xffffff) + 0xff000000;
+		}
+	}
+
+	err = process_fb(fd, buf1, 0, 0, width, height, buf2, 0, 0, width,
+			 height, DRM_MODE_ROTATE_180);
+	if (!err) {
+		printf("Buffer processed, checking processed buffer... ");
+
+		for (y = 0; y < height; y++) {
+			uint32_t *p1 = buf1->ptr + buf1->pitch * y;
+			uint32_t *p2 = buf2->ptr + buf1->pitch * (height - y - 1);
+
+			for (x = 0; x < width; x++)
+				if (*(p1 + x) != *(p2 + width - x - 1)) {
+					printf("failed at (%d,%d) %06x != %06x.\n",
+						x, y, *(p1 + x),
+						*(p2 + width - x - 1));
+					goto free;
+				}
+		}
+		printf("okay.\n");
+	}
+
+free:
+	bo_destroy(fd, buf1);
+	bo_destroy(fd, buf2);
+
+	return 0;
+}
