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/*
* Copyright 2004-2010 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
/*!
* @defgroup OPLIP OPL Image Processing
*/
/*!
* @file opl.h
*
* @brief The OPL (Open Primitives Library) Image Processing library defines
* efficient functions for rotation and mirroring.
*
* It includes ARM9-optimized rotation and mirroring functions. It is derived
* from the original OPL project which is found at sourceforge.freescale.net.
*
* @ingroup OPLIP
*/
#ifndef __OPL_H__
#define __OPL_H__
#include <linux/types.h>
#define BYTES_PER_PIXEL 2
#define CACHE_LINE_WORDS 8
#define BYTES_PER_WORD 4
#define BYTES_PER_2PIXEL (BYTES_PER_PIXEL * 2)
#define BYTES_PER_4PIXEL (BYTES_PER_PIXEL * 4)
#define BYTES_PER_8PIXEL (BYTES_PER_PIXEL * 8)
#define QCIF_Y_WIDTH 176
#define QCIF_Y_HEIGHT 144
/*! Enumerations of opl error code */
enum opl_error {
OPLERR_SUCCESS = 0,
OPLERR_NULL_PTR,
OPLERR_BAD_ARG,
OPLERR_DIV_BY_ZERO,
OPLERR_OVER_FLOW,
OPLERR_UNDER_FLOW,
OPLERR_MISALIGNED,
};
/*!
* @brief Rotate a 16bbp buffer 90 degrees clockwise.
*
* @param src Pointer to the input buffer
* @param src_line_stride Length in bytes of a raster line of the input buffer
* @param width Width in pixels of the region in the input buffer
* @param height Height in pixels of the region in the input buffer
* @param dst Pointer to the output buffer
* @param dst_line_stride Length in bytes of a raster line of the output buffer
*
* @return Standard OPL error code. See enumeration for possible result codes.
*/
int opl_rotate90_u16(const u8 *src, int src_line_stride, int width, int height,
u8 *dst, int dst_line_stride);
/*!
* @brief Rotate a 16bbp buffer 180 degrees clockwise.
*
* @param src Pointer to the input buffer
* @param src_line_stride Length in bytes of a raster line of the input buffer
* @param width Width in pixels of the region in the input buffer
* @param height Height in pixels of the region in the input buffer
* @param dst Pointer to the output buffer
* @param dst_line_stride Length in bytes of a raster line of the output buffer
*
* @return Standard OPL error code. See enumeration for possible result codes.
*/
int opl_rotate180_u16(const u8 *src, int src_line_stride, int width,
int height, u8 *dst, int dst_line_stride);
/*!
* @brief Rotate a 16bbp buffer 270 degrees clockwise
*
* @param src Pointer to the input buffer
* @param src_line_stride Length in bytes of a raster line of the input buffer
* @param width Width in pixels of the region in the input buffer
* @param height Height in pixels of the region in the input buffer
* @param dst Pointer to the output buffer
* @param dst_line_stride Length in bytes of a raster line of the output buffer
*
* @return Standard OPL error code. See enumeration for possible result codes.
*/
int opl_rotate270_u16(const u8 *src, int src_line_stride, int width,
int height, u8 *dst, int dst_line_stride);
/*!
* @brief Mirror a 16bpp buffer horizontally
*
* @param src Pointer to the input buffer
* @param src_line_stride Length in bytes of a raster line of the input buffer
* @param width Width in pixels of the region in the input buffer
* @param height Height in pixels of the region in the input buffer
* @param dst Pointer to the output buffer
* @param dst_line_stride Length in bytes of a raster line of the output buffer
*
* @return Standard OPL error code. See enumeration for possible result codes.
*/
int opl_hmirror_u16(const u8 *src, int src_line_stride, int width, int height,
u8 *dst, int dst_line_stride);
/*!
* @brief Mirror a 16bpp buffer vertically
*
* @param src Pointer to the input buffer
* @param src_line_stride Length in bytes of a raster line of the input buffer
* @param width Width in pixels of the region in the input buffer
* @param height Height in pixels of the region in the input buffer
* @param dst Pointer to the output buffer
* @param dst_line_stride Length in bytes of a raster line of the output buffer
*
* @return Standard OPL error code. See enumeration for possible result codes.
*/
int opl_vmirror_u16(const u8 *src, int src_line_stride, int width, int height,
u8 *dst, int dst_line_stride);
/*!
* @brief Rotate a 16bbp buffer 90 degrees clockwise and mirror vertically
* It is equivalent to rotate 270 degree and mirror horizontally
*
* @param src Pointer to the input buffer
* @param src_line_stride Length in bytes of a raster line of the input buffer
* @param width Width in pixels of the region in the input buffer
* @param height Height in pixels of the region in the input buffer
* @param dst Pointer to the output buffer
* @param dst_line_stride Length in bytes of a raster line of the output buffer
*
* @return Standard OPL error code. See enumeration for possible result codes.
*/
int opl_rotate90_vmirror_u16(const u8 *src, int src_line_stride, int width,
int height, u8 *dst, int dst_line_stride);
/*!
* @brief Rotate a 16bbp buffer 270 degrees clockwise and mirror vertically
* It is equivalent to rotate 90 degree and mirror horizontally
*
* @param src Pointer to the input buffer
* @param src_line_stride Length in bytes of a raster line of the input buffer
* @param width Width in pixels of the region in the input buffer
* @param height Height in pixels of the region in the input buffer
* @param dst Pointer to the output buffer
* @param dst_line_stride Length in bytes of a raster line of the output buffer
*
* @return Standard OPL error code. See enumeration for possible result codes.
*/
int opl_rotate270_vmirror_u16(const u8 *src, int src_line_stride, int width,
int height, u8 *dst, int dst_line_stride);
#endif /* __OPL_H__ */
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