254 lines
7.6 KiB
C
254 lines
7.6 KiB
C
/****************************************************************************
|
|
* graphics/nxglib/nxglib_bitblit.h
|
|
*
|
|
* Copyright (C) 2008-2011 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __GRAPHICS_NXGLIB_NXGLIB_BITBLIT_H
|
|
#define __GRAPHICS_NXGLIB_NXGLIB_BITBLIT_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <nuttx/nx/nxglib.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/* Make sure the bits-per-pixel value has been set by the includer of
|
|
* this header file.
|
|
*/
|
|
|
|
#ifndef NXGLIB_BITSPERPIXEL
|
|
# error "NXGLIB_BITSPERPIXEL must be defined before including this header file"
|
|
#endif
|
|
|
|
/* Anti-aliasing can only be supported for 16-, 24-, and 32-bit RGB types */
|
|
|
|
#if NXGLIB_BITSPERPIXEL < 16
|
|
# undef CONFIG_NX_ANTIALIASING
|
|
#endif
|
|
|
|
|
|
/* Set up bit blit macros for this BPP */
|
|
|
|
#if NXGLIB_BITSPERPIXEL == 1
|
|
|
|
# define NXGL_PIXELSHIFT 3
|
|
# define NXGL_PIXELMASK 7
|
|
# define NXGL_MULTIPIXEL(p) ((p) ? 0xff : 0x00)
|
|
# define NXGL_PIXEL_T uint8_t
|
|
|
|
#elif NXGLIB_BITSPERPIXEL == 2
|
|
|
|
# define NXGL_PIXELSHIFT 2
|
|
# define NXGL_PIXELMASK 3
|
|
# define NXGL_MULTIPIXEL(p) ((uint8_t)(p) << 6 | (uint8_t)(p) << 4 | (uint8_t)(p) << 2 | (p))
|
|
# define NXGL_PIXEL_T uint8_t
|
|
|
|
#elif NXGLIB_BITSPERPIXEL == 4
|
|
|
|
# define NXGL_PIXELSHIFT 1
|
|
# define NXGL_PIXELMASK 1
|
|
# define NXGL_MULTIPIXEL(p) ((uint8_t)(p) << 4 | (p))
|
|
# define NXGL_PIXEL_T uint8_t
|
|
|
|
#elif NXGLIB_BITSPERPIXEL == 8
|
|
|
|
# define NXGL_SCALEX(x) (x)
|
|
# define NXGL_PIXEL_T uint8_t
|
|
|
|
#elif NXGLIB_BITSPERPIXEL == 16
|
|
|
|
# define NXGL_SCALEX(x) ((x) << 1)
|
|
# define NXGL_PIXEL_T uint16_t
|
|
# define NXGL_BLENDER nxglib_rgb565_blend
|
|
|
|
#elif NXGLIB_BITSPERPIXEL == 24
|
|
|
|
# define NXGL_SCALEX(x) (((x) << 1) + (x))
|
|
# define NXGL_PIXEL_T uint32_t
|
|
# define NXGL_BLENDER nxglib_rgb24_blend
|
|
|
|
#elif NXGLIB_BITSPERPIXEL == 32
|
|
|
|
# define NXGL_SCALEX(x) ((x) << 2)
|
|
# define NXGL_PIXEL_T uint32_t
|
|
# define NXGL_BLENDER nxglib_rgb24_blend
|
|
|
|
#endif
|
|
|
|
#if NXGLIB_BITSPERPIXEL < 8
|
|
|
|
# define NXGL_SCALEX(x) ((x) >> NXGL_PIXELSHIFT)
|
|
# define NXGL_REMAINDERX(x) ((x) & NXGL_PIXELMASK)
|
|
# define NXGL_ALIGNDOWN(x) ((x) & ~NXGL_PIXELMASK)
|
|
# define NXGL_ALIGNUP(x) (((x) + NXGL_PIXELMASK) & ~NXGL_PIXELMASK)
|
|
|
|
# define NXGL_MEMSET(dest,value,width) \
|
|
{ \
|
|
FAR uint8_t *_ptr = (FAR uint8_t*)(dest); \
|
|
int _nby = NXGL_SCALEX(width); \
|
|
while (_nby--) \
|
|
{ \
|
|
*_ptr++ = (value); \
|
|
} \
|
|
}
|
|
|
|
# define NXGL_MEMCPY(dest,src,width) \
|
|
{ \
|
|
FAR uint8_t *_dptr = (FAR uint8_t*)(dest); \
|
|
FAR uint8_t *_sptr = (FAR uint8_t*)(src); \
|
|
int _nby = NXGL_SCALEX(width); \
|
|
while (_nby--) \
|
|
{ \
|
|
*_dptr++ = *_sptr++; \
|
|
} \
|
|
}
|
|
|
|
#elif NXGLIB_BITSPERPIXEL == 24
|
|
|
|
# define NXGL_MEMSET(dest,value,width) \
|
|
{ \
|
|
FAR uint8_t *_ptr = (FAR uint8_t*)(dest); \
|
|
nxgl_coord_t _npix = (width); \
|
|
while (_npix--) \
|
|
{ \
|
|
*_ptr++ = (value); \
|
|
*_ptr++ = (value) >> 8; \
|
|
*_ptr++ = (value) >> 16; \
|
|
} \
|
|
}
|
|
|
|
# define NXGL_MEMCPY(dest,src,width) \
|
|
{ \
|
|
FAR uint8_t *_dptr = (FAR uint8_t*)(dest); \
|
|
FAR uint8_t *_sptr = (FAR uint8_t*)(src); \
|
|
nxgl_coord_t _npix = (width); \
|
|
while (_npix--) \
|
|
{ \
|
|
*_dptr++ = *_sptr++; \
|
|
*_dptr++ = *_sptr++; \
|
|
*_dptr++ = *_sptr++; \
|
|
} \
|
|
}
|
|
|
|
#ifdef CONFIG_NX_ANTIALIASING
|
|
|
|
# define NXGL_BLEND(dest,color1,frac) \
|
|
{ \
|
|
FAR uint8_t *_dptr = (FAR uint8_t*)(dest); \
|
|
uint32_t color2; \
|
|
uint32_t blend; \
|
|
color2 = ((uint32_t)_dptr[0] << 16) | \
|
|
((uint32_t)_dptr[1] << 8) | \
|
|
(uint32_t)_dptr[2]; \
|
|
blend = NXGL_BLENDER(color1, color2, frac); \
|
|
*_dptr++ = (blend >> 16) & 0xff; \
|
|
*_dptr++ = (blend >> 8) & 0xff; \
|
|
*_dptr++ = blend & 0xff; \
|
|
}
|
|
|
|
#endif /* CONFIG_NX_ANTIALIASING */
|
|
#else /* NXGLIB_BITSPERPIXEL == 16 || NXGLIB_BITSPERPIXEL == 32 */
|
|
|
|
# define NXGL_MEMSET(dest,value,width) \
|
|
{ \
|
|
FAR NXGL_PIXEL_T *_ptr = (FAR NXGL_PIXEL_T*)(dest); \
|
|
nxgl_coord_t _npix = (width); \
|
|
while (_npix--) \
|
|
{ \
|
|
*_ptr++ = (value); \
|
|
} \
|
|
}
|
|
|
|
# define NXGL_MEMCPY(dest,src,width) \
|
|
{ \
|
|
FAR NXGL_PIXEL_T *_dptr = (FAR NXGL_PIXEL_T*)(dest); \
|
|
FAR NXGL_PIXEL_T *_sptr = (FAR NXGL_PIXEL_T*)(src); \
|
|
nxgl_coord_t _npix = (width); \
|
|
while (_npix--) \
|
|
{ \
|
|
*_dptr++ = *_sptr++; \
|
|
} \
|
|
}
|
|
|
|
#ifdef CONFIG_NX_ANTIALIASING
|
|
|
|
# define NXGL_BLEND(dest,color1,frac) \
|
|
{ \
|
|
FAR NXGL_PIXEL_T *_dptr = (FAR NXGL_PIXEL_T*)(dest); \
|
|
NXGL_PIXEL_T color2 = *_dptr; \
|
|
*_dptr = NXGL_BLENDER(color1, color2, frac); \
|
|
}
|
|
|
|
#endif /* CONFIG_NX_ANTIALIASING */
|
|
#endif /* NXGLIB_BITSPERPIXEL */
|
|
|
|
/* Form a function name by concatenating two strings */
|
|
|
|
#define _NXGL_FUNCNAME(a,b) a ## b
|
|
#define NXGL_FUNCNAME(a,b) _NXGL_FUNCNAME(a,b)
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
#undef EXTERN
|
|
#if defined(__cplusplus)
|
|
#define EXTERN extern "C"
|
|
extern "C" {
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
#undef EXTERN
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif /* __GRAPHICS_NXGLIB_NXGLIB_BITBLIT_H */
|