468 lines
14 KiB
C
468 lines
14 KiB
C
/****************************************************************************
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* examples/nx/nx_kbdin.c
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*
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* Copyright (C) 2008, 2010 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include <debug.h>
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#include <errno.h>
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#include <nuttx/nx.h>
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#include <nuttx/nxtk.h>
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#include <nuttx/nxfonts.h>
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#include "nx_internal.h"
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#ifdef CONFIG_NX_KBD
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/* Select renderer -- Some additional logic would be required to support
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* pixel depths that are not directly addressable (1,2,4, and 24).
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*/
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#if CONFIG_EXAMPLES_NX_BPP == 1
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# define RENDERER nxf_convert_1bpp
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#elif CONFIG_EXAMPLES_NX_BPP == 2
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# define RENDERER nxf_convert_2bpp
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#elif CONFIG_EXAMPLES_NX_BPP == 4
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# define RENDERER nxf_convert_4bpp
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#elif CONFIG_EXAMPLES_NX_BPP == 8
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# define RENDERER nxf_convert_8bpp
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#elif CONFIG_EXAMPLES_NX_BPP == 16
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# define RENDERER nxf_convert_16bpp
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#elif CONFIG_EXAMPLES_NX_BPP == 24
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# define RENDERER nxf_convert_24bpp
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#elif CONFIG_EXAMPLES_NX_BPP == 32
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# define RENDERER nxf_convert_32bpp
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#else
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# error "Unsupported CONFIG_EXAMPLES_NX_BPP"
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#endif
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxeg_fillchar
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****************************************************************************/
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static void nxeg_fillchar(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
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FAR const struct nxeg_bitmap_s *bm)
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{
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FAR void *src = (FAR void *)bm->glyph->bitmap;
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struct nxgl_rect_s intersection;
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int ret;
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/* Handle the special case of spaces which have no glyph bitmap */
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if (src)
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{
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/* Get the intersection of the redraw region and the characer bitmap */
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nxgl_rectintersect(&intersection, rect, &bm->bounds);
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if (!nxgl_nullrect(&intersection))
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{
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#ifndef CONFIG_EXAMPLES_NX_RAWWINDOWS
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ret = nxtk_bitmapwindow((NXTKWINDOW)hwnd, &intersection, &src,
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&bm->bounds.pt1,
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(unsigned int)bm->glyph->stride);
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if (ret < 0)
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{
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message("nxeg_fillchar: nxtk_bitmapwindow failed: %d\n", errno);
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}
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#else
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ret = nx_bitmap((NXWINDOW)hwnd, &intersection, &src,
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&bm->bounds.pt1,
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(unsigned int)bm->glyph->stride);
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if (ret < 0)
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{
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message("nxeg_fillchar: nx_bitmapwindow failed: %d\n", errno);
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}
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#endif
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}
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}
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}
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/****************************************************************************
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* Name: nxeg_renderglyph
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****************************************************************************/
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static inline FAR const struct nxeg_glyph_s *
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nxeg_renderglyph(FAR struct nxeg_state_s *st,
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FAR const struct nx_fontbitmap_s *bm, uint8_t ch)
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{
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FAR struct nxeg_glyph_s *glyph = NULL;
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FAR nxgl_mxpixel_t *ptr;
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#if CONFIG_EXAMPLES_NX_BPP < 8
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nxgl_mxpixel_t pixel;
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#endif
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int bmsize;
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int row;
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int col;
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int ret;
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/* Make sure that there is room for another glyph */
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message("nxeg_renderglyph: ch=%02x\n", ch);
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if (st->nglyphs < NXTK_MAXKBDCHARS)
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{
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/* Allocate the glyph */
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glyph = &st->glyph[st->nglyphs];
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glyph->code = ch;
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/* Get the dimensions of the glyph */
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glyph->width = bm->metric.width + bm->metric.xoffset;
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glyph->height = bm->metric.height + bm->metric.yoffset;
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/* Allocate memory to hold the glyph with its offsets */
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glyph->stride = (glyph->width * CONFIG_EXAMPLES_NX_BPP + 7) / 8;
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bmsize = glyph->stride * glyph->height;
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glyph->bitmap = (FAR uint8_t *)malloc(bmsize);
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if (glyph->bitmap)
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{
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/* Initialize the glyph memory to the background color */
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#if CONFIG_EXAMPLES_NX_BPP < 8
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pixel = st->color[0];
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# if CONFIG_EXAMPLES_NX_BPP == 1
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/* Pack 1-bit pixels into a 2-bits */
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pixel &= 0x01;
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pixel = (pixel) << 1 |pixel;
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# endif
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# if CONFIG_EXAMPLES_NX_BPP < 4
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/* Pack 2-bit pixels into a nibble */
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pixel &= 0x03;
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pixel = (pixel) << 2 |pixel;
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# endif
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/* Pack 4-bit nibbles into a byte */
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pixel &= 0x0f;
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pixel = (pixel) << 4 | pixel;
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ptr = (FAR nxgl_mxpixel_t *)glyph->bitmap;
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for (row = 0; row < glyph->height; row++)
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{
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for (col = 0; col < glyph->stride; col++)
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{
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/* Transfer the packed bytes into the buffer */
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*ptr++ = pixel;
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}
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}
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#elif CONFIG_EXAMPLES_NX_BPP == 24
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# error "Additional logic is needed here for 24bpp support"
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#else /* CONFIG_EXAMPLES_NX_BPP = {8,16,32} */
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ptr = (FAR nxgl_mxpixel_t *)glyph->bitmap;
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for (row = 0; row < glyph->height; row++)
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{
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/* Just copy the color value into the glyph memory */
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for (col = 0; col < glyph->width; col++)
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{
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*ptr++ = st->color[0];
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}
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}
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#endif
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/* Then render the glyph into the allocated memory */
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ret = RENDERER((FAR nxgl_mxpixel_t*)glyph->bitmap,
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glyph->height, glyph->width, glyph->stride,
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bm, CONFIG_EXAMPLES_NX_FONTCOLOR);
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if (ret < 0)
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{
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/* Actually, the RENDERER never returns a failure */
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message("nxeg_renderglyph: RENDERER failed\n");
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free(glyph->bitmap);
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glyph->bitmap = NULL;
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glyph = NULL;
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}
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else
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{
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/* Make it permanent */
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st->nglyphs++;
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}
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}
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}
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return glyph;
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}
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/****************************************************************************
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* Name: nxeg_addspace
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****************************************************************************/
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static inline FAR const struct nxeg_glyph_s *
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nxeg_addspace(FAR struct nxeg_state_s *st, uint8_t ch)
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{
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FAR struct nxeg_glyph_s *glyph = NULL;
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/* Make sure that there is room for another glyph */
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if (st->nglyphs < NXTK_MAXKBDCHARS)
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{
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/* Allocate the NULL glyph */
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glyph = &st->glyph[st->nglyphs];
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memset(glyph, 0, sizeof(struct nxeg_glyph_s));
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glyph->code = ' ';
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glyph->width = st->spwidth;
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st->nglyphs++;
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}
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return glyph;
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}
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/****************************************************************************
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* Name: nxeg_findglyph
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****************************************************************************/
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static FAR const struct nxeg_glyph_s *
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nxeg_findglyph(FAR struct nxeg_state_s *st, uint8_t ch)
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{
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int i;
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/* First, try to find the glyph in the cache of pre-rendered glyphs */
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for (i = 0; i < st->nglyphs; i++)
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{
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if (st->glyph[i].code == ch)
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{
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return &st->glyph[i];
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}
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}
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return NULL;
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}
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/****************************************************************************
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* Name: nxeg_getglyph
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****************************************************************************/
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static FAR const struct nxeg_glyph_s *
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nxeg_getglyph(FAR struct nxeg_state_s *st, uint8_t ch)
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{
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FAR const struct nxeg_glyph_s *glyph;
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FAR const struct nx_fontbitmap_s *bm;
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/* First, try to find the glyph in the cache of pre-rendered glyphs */
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glyph = nxeg_findglyph(st, ch);
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if (!glyph)
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{
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/* No, it is not cached... Does the code map to a glyph? */
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bm = nxf_getbitmap(ch);
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if (!bm)
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{
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/* No, there is no glyph for this code. Use space */
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glyph = nxeg_findglyph(st, ' ');
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if (!glyph)
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{
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/* There isn't fake glyph for ' ' yet... create one */
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glyph = nxeg_addspace(st, ' ');
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}
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}
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else
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{
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glyph = nxeg_renderglyph(st, bm, ch);
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}
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}
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return glyph;
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}
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/****************************************************************************
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* Name: nxeg_addchar
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****************************************************************************/
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static FAR const struct nxeg_bitmap_s *
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nxeg_addchar(FAR struct nxeg_state_s *st, uint8_t ch)
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{
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FAR struct nxeg_bitmap_s *bm = NULL;
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FAR struct nxeg_bitmap_s *bmleft;
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nxgl_coord_t leftx;
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/* Is there space for another character on the display? */
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if (st->nchars < NXTK_MAXKBDCHARS)
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{
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/* Yes, setup the bitmap */
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bm = &st->bm[st->nchars];
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/* Find the matching glyph */
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bm->glyph = nxeg_getglyph(st, ch);
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if (!bm->glyph)
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{
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return NULL;
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}
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/* Set up the bounds for the bitmap */
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if (st->nchars <= 0)
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{
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/* The first character is one space from the left */
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leftx = st->spwidth;
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}
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else
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{
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/* Otherwise, it is to the left of the preceding char */
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bmleft = &st->bm[st->nchars-1];
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leftx = bmleft->bounds.pt2.x + 1;
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}
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bm->bounds.pt1.x = leftx;
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bm->bounds.pt1.y = 2;
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bm->bounds.pt2.x = leftx + bm->glyph->width - 1;
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bm->bounds.pt2.y = 2 + bm->glyph->height - 1;
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st->nchars++;
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}
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return bm;
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}
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/****************************************************************************
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* Name: nxeg_addchars
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****************************************************************************/
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static inline void nxeg_addchars(NXWINDOW hwnd, FAR struct nxeg_state_s *st,
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uint8_t nch, FAR const uint8_t *ch)
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{
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FAR const struct nxeg_bitmap_s *bm;
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while (nch--)
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{
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bm = nxeg_addchar(st, *ch++);
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if (bm)
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{
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nxeg_fillchar(hwnd, &bm->bounds, bm);
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}
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}
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxeg_kbdin
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****************************************************************************/
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void nxeg_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch,
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FAR void *arg)
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{
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FAR struct nxeg_state_s *st = (FAR struct nxeg_state_s *)arg;
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message("nxeg_kbdin%d: hwnd=%p nch=%d\n", st->wnum, hwnd, nch);
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nxeg_addchars(hwnd, st, nch, ch);
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}
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/****************************************************************************
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* Name: nxeg_tbkbdin
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****************************************************************************/
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#ifndef CONFIG_EXAMPLES_NX_RAWWINDOWS
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void nxeg_tbkbdin(NXWINDOW hwnd, uint8_t nch, const uint8_t *ch, FAR void *arg)
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{
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FAR struct nxeg_state_s *st = (FAR struct nxeg_state_s *)arg;
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message("nxeg_tbkbdin: ERROR -- toolbar should not received keyboard input\n");
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message("nxeg_tbkbdin%d: hwnd=%p nch=%d\n", st->wnum, hwnd, nch);
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}
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#endif
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/****************************************************************************
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* Name: nxeg_tbkbdin
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****************************************************************************/
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void nxeg_filltext(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
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FAR struct nxeg_state_s *st)
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{
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int i;
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/* Fill each character on the display (Only the characters within rect
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* will actually be redrawn).
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*/
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for (i = 0; i < st->nchars; i++)
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{
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nxeg_fillchar(hwnd, rect, &st->bm[i]);
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}
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}
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#endif /* CONFIG_NX_KBD */
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