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Diffstat (limited to 'nuttx/graphics/nxfonts/nxfonts_convert.c')
-rw-r--r--nuttx/graphics/nxfonts/nxfonts_convert.c290
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diff --git a/nuttx/graphics/nxfonts/nxfonts_convert.c b/nuttx/graphics/nxfonts/nxfonts_convert.c
deleted file mode 100644
index a3c319964..000000000
--- a/nuttx/graphics/nxfonts/nxfonts_convert.c
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-/****************************************************************************
- * graphics/nxfonts/nxfonts_convert.c
- *
- * Copyright (C) 2008-2010 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.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <stdint.h>
-#include <stddef.h>
-#include <debug.h>
-
-#include <nuttx/nx/nxglib.h>
-#include <nuttx/nx/nxfonts.h>
-
-#include "nxfonts_internal.h"
-
-/****************************************************************************
- * Pre-Processor Definitions
- ****************************************************************************/
-
-/* Make sure the bits-per-pixel value has been set */
-
-#ifndef NXFONTS_BITSPERPIXEL
-# error "NXFONTS_BITSPERPIXEL must be defined on the command line"
-#endif
-
-/* Set up bit blit macros for this BPP */
-
-#if NXFONTS_BITSPERPIXEL == 1
-
-# define NXF_PIXELMASK 0x01
-# define NXF_SCALEX(x) ((x) >> 3)
-# define NXF_PIXEL_T uint8_t
-# define NXF_MULTIPIXEL(p) ((p) ? 0xff : 0x00)
-
-#elif NXFONTS_BITSPERPIXEL == 2
-
-# define NXF_PIXELMASK 0x03
-# define NXF_SCALEX(x) ((x) >> 2)
-# define NXF_PIXEL_T uint8_t
-# define NXF_MULTIPIXEL(p) ((uint8_t)(p) << 6 | (uint8_t)(p) << 4 | (uint8_t)(p) << 2 | (p))
-
-#elif NXFONTS_BITSPERPIXEL == 4
-
-# define NXF_PIXELMASK 0x0f
-# define NXF_SCALEX(x) ((x) >> 1)
-# define NXF_PIXEL_T uint8_t
-# define NXF_MULTIPIXEL(p) ((uint8_t)(p) << 4 | (p))
-
-#elif NXFONTS_BITSPERPIXEL == 8
-
-# define NXF_SCALEX(x) (x)
-# define NXF_PIXEL_T uint8_t
-
-#elif NXFONTS_BITSPERPIXEL == 16
-
-# define NXF_SCALEX(x) ((x) << 1)
-# define NXF_PIXEL_T uint16_t
-
-#elif NXFONTS_BITSPERPIXEL == 24
-
-# define NXF_SCALEX(x) (((x) << 1) + (x))
-# define NXF_PIXEL_T uint32_t
-
-#elif NXFONTS_BITSPERPIXEL == 32
-
-# define NXF_SCALEX(x) ((x) << 2)
-# define NXF_PIXEL_T uint32_t
-
-#endif
-
-#if NXFONTS_BITSPERPIXEL < 8
-# ifdef CONFIG_NX_PACKEDMSFIRST
-# define NXF_INITMASK (NXF_PIXELMASK << (8 - NXFONTS_BITSPERPIXEL))
-# else
-# define NXF_INITMASK NXF_PIXELMASK
-# endif
-#endif
-
-/* Form a function name by concatenating two strings */
-
-#define _NXF_FUNCNAME(a,b) a ## b
-#define NXF_FUNCNAME(a,b) _NXF_FUNCNAME(a,b)
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: nxf_convert_*bpp
- *
- * Description:
- * Convert the 1BPP font to a new pixel depth
- *
- * Input Parameters:
- * dest - The destination buffer provided by the caller.
- * height - The max height of the returned char in rows
- * width - The max width of the returned char in pixels
- * stride - The width of the destination buffer in bytes
- * bm - Describes the character glyph to convert
- * color - The color to use for '1' bits in the font bitmap
- * (0 bits are transparent)
- *
- * Returned Value:
- * OK on Success, ERROR: on failure with errno set appropriately.
- * (never fails)
- *
- ****************************************************************************/
-
-int NXF_FUNCNAME(nxf_convert,NXFONTS_SUFFIX)
-(FAR NXF_PIXEL_T *dest, uint16_t height, uint16_t width, uint16_t stride,
- FAR const struct nx_fontbitmap_s *bm, nxgl_mxpixel_t color)
-{
- FAR uint8_t *line;
- FAR NXF_PIXEL_T *dptr;
- FAR const uint8_t *sptr;
- uint8_t bmbyte;
- int bmbit;
- int row;
- int col;
- int bmndx;
-
-#if NXFONTS_BITSPERPIXEL < 8
- NXF_PIXEL_T mpixel;
- NXF_PIXEL_T mask;
- NXF_PIXEL_T pixel;
- int nbits;
-#endif
-
- /* Get the starting position */
-
- line = (uint8_t*)dest + bm->metric.yoffset * stride + NXF_SCALEX(bm->metric.xoffset);
-
- /* Then copy the font */
-
- height = ngl_min(bm->metric.height, height - bm->metric.yoffset);
- width = ngl_min(bm->metric.width, width - bm->metric.xoffset);
-
- /* Render each row of the glyph */
-
- sptr = bm->bitmap;
-#if NXFONTS_BITSPERPIXEL < 8
- mpixel = NXF_MULTIPIXEL(color);
-
- /* Handle each row in both the input and output */
-
- for (row = 0; row < height; row++)
- {
- /* Process each byte in the glyph row */
-
- col = 0;
- dptr = (FAR NXF_PIXEL_T*)line;
- pixel = *dptr;
- mask = NXF_INITMASK;
- nbits = 0;
-
- for (bmndx = 0; bmndx < bm->metric.stride && col < width; bmndx++)
- {
- bmbyte = *sptr++;
-
- /* Process each bit in one byte */
-
- for (bmbit = 7; bmbit >= 0 && col < width; bmbit--, col++)
- {
- /* Is the bit set? */
-
- if (bmbyte & (1 << bmbit))
- {
- /* Yes.. set the bit to 'color' in the output */
-
- pixel = ((pixel & ~mask) | (mpixel & mask));
- }
-
-#ifdef CONFIG_NX_PACKEDMSFIRST
- mask >>= NXFONTS_BITSPERPIXEL;
-#else
- mask <<= NXFONTS_BITSPERPIXEL;
-#endif
- nbits += NXFONTS_BITSPERPIXEL;
- if (nbits >= 8)
- {
- *dptr++ = pixel;
- pixel = *dptr;
- mask = NXF_INITMASK;
- nbits = 0;
- }
- }
- }
-
- /* The entire glyph row has been rendered. Handle any fractional bytes at
- * the end of the row
- */
-
- if (nbits > 0)
- {
- *dptr = pixel;
- }
-
- /* Point to the beginning of the next row */
-
- line += stride;
- }
-#else
- /* Handle each row in both the input and output */
-
- for (row = 0; row < height; row++)
- {
- /* Process each byte in the glyph */
-
- col = 0;
- dptr = (FAR NXF_PIXEL_T*)line;
-
- for (bmndx = 0; bmndx < bm->metric.stride && col < width; bmndx++)
- {
- bmbyte = *sptr++;
-
- /* Process each bit in the byte */
-
- for (bmbit = 7; bmbit >= 0 && col < width; bmbit--, col++)
- {
- /* Is the bit set? */
-
- if (bmbyte & (1 << bmbit))
- {
- /* Yes.. set the bit to 'color' in the output */
-
- *dptr++ = color;
- }
- else
- {
- /* No... keep the background color in the output */
-
- dptr++;
- }
- }
- }
-
- /* Advance to the beginning of the next line in the destination */
-
- line += stride;
- }
-#endif
- return OK;
-}
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