e77aa25163
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1313 42af7a65-404d-4744-a932-0658087f49c3
216 lines
6.9 KiB
C
216 lines
6.9 KiB
C
/****************************************************************************
|
|
* graphics/nxglib/nxglib_bitblit.h
|
|
*
|
|
* Copyright (C) 2008 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* 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 <sys/types.h>
|
|
|
|
#include <nuttx/nxglib.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-Processor Definitions
|
|
****************************************************************************/
|
|
|
|
/* Make sure the 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
|
|
|
|
/* Set up bit blit macros for this BPP */
|
|
|
|
#if NXGLIB_BITSPERPIXEL == 1
|
|
|
|
# define NX_PIXELSHIFT 3
|
|
# define NX_PIXELMASK 7
|
|
# define NX_MULTIPIXEL(p) ((p) ? 0xff | 0x00)
|
|
# define NX_PIXEL_T ubyte
|
|
|
|
#elif NXGLIB_BITSPERPIXEL == 2
|
|
|
|
# define NX_PIXELSHIFT 2
|
|
# define NX_PIXELMASK 3
|
|
# define NX_MULTIPIXEL(p) ((ubyte)(p) << 6 | (ubyte)(p) << 4 | (ubyte)(p) << 2 | (p))
|
|
# define NX_PIXEL_T ubyte
|
|
|
|
#elif NXGLIB_BITSPERPIXEL == 4
|
|
|
|
# define NX_PIXELSHIFT 1
|
|
# define NX_PIXELMASK 1
|
|
# define NX_MULTIPIXEL(p) ((ubyte)(p) << 4 | (p))
|
|
# define NX_PIXEL_T ubyte
|
|
|
|
#elif NXGLIB_BITSPERPIXEL == 8
|
|
|
|
# define NX_SCALEX(x) (x)
|
|
# define NX_PIXEL_T ubyte
|
|
|
|
#elif NXGLIB_BITSPERPIXEL == 16
|
|
|
|
# define NX_SCALEX(x) ((x) << 1)
|
|
# define NX_PIXEL_T uint16
|
|
|
|
#elif NXGLIB_BITSPERPIXEL == 24
|
|
|
|
# define NX_SCALEX(x) (((x) << 1) + (x))
|
|
# define NX_PIXEL_T uint32
|
|
|
|
#elif NXGLIB_BITSPERPIXEL == 32
|
|
|
|
# define NX_SCALEX(x) ((x) << 2)
|
|
# define NX_PIXEL_T uint32
|
|
|
|
#endif
|
|
|
|
#if NXGLIB_BITSPERPIXEL < 8
|
|
# define NX_SCALEX(x) ((x) >> NX_PIXELSHIFT)
|
|
# define NX_REMAINDERX(x) ((x) & NX_PIXELMASK)
|
|
# define NX_ALIGNDOWN(x) ((x) & ~NX_PIXELMASK)
|
|
# define NX_ALIGNUP(x) (((x) + NX_PIXELMASK) & ~NX_PIXELMASK)
|
|
|
|
# ifdef CONFIG_NX_PACKEDMSFIRST
|
|
# define NX_MASKEDSRC1(s,r) ((s) & (((ubyte)0xff) >> (8 - ((r) << pixelshift))))
|
|
# define NX_MASKEDVALUE1(s,r) ((s) & (((ubyte)0xff) << ((r) << NX_PIXELSHFIT)))
|
|
# define NX_MASKEDSRC2(s,r) ((s) & (((ubyte)0xff) >> ((r) << pixelshift)))
|
|
# define NX_MASKEDVALUE2(s,r) ((s) & (((ubyte)0xff) << (8 - ((r) << NX_PIXELSHFIT))))
|
|
# else
|
|
# define NX_MASKEDSRC1(s,r) ((s) & (((ubyte)0xff) >> ((r) << pixelshift)))
|
|
# define NX_MASKEDVALUE1(s,r) ((s) & (((ubyte)0xff) << (8 - ((r) << NX_PIXELSHFIT))))
|
|
# define NX_MASKEDSRC2(s,r) ((s) & (((ubyte)0xff) >> (8 - ((r) << pixelshift))))
|
|
# define NX_MASKEDVALUE2(s,r) ((s) & (((ubyte)0xff) << ((r) << NX_PIXELSHFIT)))
|
|
# endif
|
|
|
|
# define NXGL_MEMSET(dest,value,width) \
|
|
{ \
|
|
FAR ubyte *_ptr = (FAR ubyte*)dest; \
|
|
int nbytes = NX_SCALEX(width); \
|
|
while (nbytes--) \
|
|
{ \
|
|
*_ptr++ = value; \
|
|
} \
|
|
}
|
|
# define NXGL_MEMCPY(dest,src,width) \
|
|
{ \
|
|
FAR ubyte *_dptr = (FAR ubyte*)dest; \
|
|
FAR ubyte *_sptr = (FAR ubyte*)src; \
|
|
int nbytes = NX_SCALEX(width); \
|
|
while (npixels--) \
|
|
{ \
|
|
*_dptr++ = *_sptr++; \
|
|
} \
|
|
}
|
|
|
|
#elif NXGLIB_BITSPERPIXEL == 24
|
|
# define NXGL_MEMSET(dest,value,width) \
|
|
{ \
|
|
FAR ubyte *_ptr = (FAR ubyte*)dest; \
|
|
while (width--) \
|
|
{ \
|
|
*_ptr++ = value; \
|
|
*_ptr++ = value >> 8; \
|
|
*_ptr++ = value >> 16; \
|
|
} \
|
|
}
|
|
# define NXGL_MEMCPY(dest,src,width) \
|
|
{ \
|
|
FAR ubyte *_dptr = (FAR ubyte*)dest; \
|
|
FAR ubyte *_sptr = (FAR ubyte*)src; \
|
|
while (width--) \
|
|
{ \
|
|
*_dptr++ = *_sptr++; \
|
|
*_dptr++ = *_sptr++; \
|
|
*_dptr++ = *_sptr++; \
|
|
} \
|
|
}
|
|
#else
|
|
# define NXGL_MEMSET(dest,value,width) \
|
|
{ \
|
|
FAR nx_pixel_t *_ptr = (FAR ubyte*)dest; \
|
|
while (width--) \
|
|
{ \
|
|
*_ptr++ = value; \
|
|
} \
|
|
}
|
|
# define NXGL_MEMCPY(dest,src,width) \
|
|
{ \
|
|
FAR nx_pixel_t *_dptr = (FAR ubyte*)dest; \
|
|
FAR nx_pixel_t *_sptr = (FAR ubyte*)src; \
|
|
while (width--) \
|
|
{ \
|
|
*_dptr++ = *_sptr++; \
|
|
} \
|
|
}
|
|
#endif
|
|
|
|
/* 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 */
|