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397 lines
12 KiB
397 lines
12 KiB
/**************************************************************************** |
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* examples/nximage/nximage_bkgd.c |
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* |
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* Copyright (C) 2011 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 <stdbool.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <semaphore.h> |
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#include <errno.h> |
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#include <debug.h> |
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#include <nuttx/nx/nx.h> |
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#include <nuttx/nx/nxglib.h> |
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#include <nuttx/nx/nxfonts.h> |
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#include "nximage.h" |
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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_NXIMAGE_BPP == 1 |
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# define RENDERER nxf_convert_1bpp |
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#elif CONFIG_EXAMPLES_NXIMAGE_BPP == 2 |
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# define RENDERER nxf_convert_2bpp |
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#elif CONFIG_EXAMPLES_NXIMAGE_BPP == 4 |
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# define RENDERER nxf_convert_4bpp |
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#elif CONFIG_EXAMPLES_NXIMAGE_BPP == 8 |
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# define RENDERER nxf_convert_8bpp |
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#elif CONFIG_EXAMPLES_NXIMAGE_BPP == 16 |
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# define RENDERER nxf_convert_16bpp |
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#elif CONFIG_EXAMPLES_NXIMAGE_BPP == 24 |
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# define RENDERER nxf_convert_24bpp |
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#elif CONFIG_EXAMPLES_NXIMAGE_BPP == 32 |
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# define RENDERER nxf_convert_32bpp |
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#else |
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# error "Unsupported CONFIG_EXAMPLES_NXIMAGE_BPP" |
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#endif |
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/* Vertical scaling */ |
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#if defined(CONFIG_EXAMPLES_NXIMAGE_YSCALEp5) |
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/* Read two rows, output one averaged row */ |
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#define NINPUT_ROWS 2 |
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#define NOUTPUT_ROWS 1 |
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#elif defined(CONFIG_EXAMPLES_NXIMAGE_YSCALE1p5) |
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/* Read two rows, output three rows */ |
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#define NINPUT_ROWS 2 |
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#define NOUTPUT_ROWS 3 |
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#elif defined(CONFIG_EXAMPLES_NXIMAGE_YSCALE2p0) |
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/* Read one row, output two rows */ |
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#define NINPUT_ROWS 1 |
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#define NOUTPUT_ROWS 2 |
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#else |
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/* Read one rows, output one or two rows */ |
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#define NINPUT_ROWS 1 |
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#define NOUTPUT_ROWS 1 |
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#endif |
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/**************************************************************************** |
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* Private Types |
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****************************************************************************/ |
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struct nximage_run_t |
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{ |
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nxgl_mxpixel_t run[SCALED_WIDTH]; |
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}; |
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/**************************************************************************** |
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* Private Function Prototypes |
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****************************************************************************/ |
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static void nximage_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect, |
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bool more, FAR void *arg); |
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static void nximage_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size, |
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FAR const struct nxgl_point_s *pos, |
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FAR const struct nxgl_rect_s *bounds, |
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FAR void *arg); |
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#ifdef CONFIG_NX_MOUSE |
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static void nximage_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos, |
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uint8_t buttons, FAR void *arg); |
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#endif |
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#ifdef CONFIG_NX_KBD |
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static void nximage_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch, |
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FAR void *arg); |
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#endif |
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/**************************************************************************** |
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* Private Data |
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****************************************************************************/ |
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static const char g_hello[] = "Hello, World!"; |
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/* Read one or two rows, output one tow or three rows */ |
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static struct nximage_run_t g_runs[NINPUT_ROWS]; |
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/**************************************************************************** |
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* Public Data |
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****************************************************************************/ |
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/* Background window call table */ |
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const struct nx_callback_s g_nximagecb = |
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{ |
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nximage_redraw, /* redraw */ |
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nximage_position /* position */ |
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#ifdef CONFIG_NX_MOUSE |
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, nximage_mousein /* mousein */ |
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#endif |
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#ifdef CONFIG_NX_KBD |
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, nximage_kbdin /* my kbdin */ |
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#endif |
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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: nximage_redraw |
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* |
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* Description: |
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* NX re-draw handler |
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* |
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****************************************************************************/ |
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static void nximage_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect, |
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bool more, FAR void *arg) |
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{ |
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gvdbg("hwnd=%p rect={(%d,%d),(%d,%d)} more=%s\n", |
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hwnd, rect->pt1.x, rect->pt1.y, rect->pt2.x, rect->pt2.y, |
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more ? "true" : "false"); |
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} |
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/**************************************************************************** |
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* Name: nximage_position |
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* |
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* Description: |
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* NX position change handler |
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* |
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****************************************************************************/ |
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static void nximage_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size, |
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FAR const struct nxgl_point_s *pos, |
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FAR const struct nxgl_rect_s *bounds, |
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FAR void *arg) |
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{ |
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/* Report the position */ |
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gvdbg("hwnd=%p size=(%d,%d) pos=(%d,%d) bounds={(%d,%d),(%d,%d)}\n", |
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hwnd, size->w, size->h, pos->x, pos->y, |
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bounds->pt1.x, bounds->pt1.y, bounds->pt2.x, bounds->pt2.y); |
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/* Have we picked off the window bounds yet? */ |
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if (!g_nximage.havepos) |
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{ |
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/* Save the background window handle */ |
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g_nximage.hbkgd = hwnd; |
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/* Save the window limits */ |
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g_nximage.xres = bounds->pt2.x + 1; |
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g_nximage.yres = bounds->pt2.y + 1; |
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g_nximage.havepos = true; |
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sem_post(&g_nximage.sem); |
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gvdbg("Have xres=%d yres=%d\n", g_nximage.xres, g_nximage.yres); |
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} |
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} |
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/**************************************************************************** |
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* Name: nximage_mousein |
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* |
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* Description: |
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* NX mouse input handler |
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* |
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****************************************************************************/ |
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#ifdef CONFIG_NX_MOUSE |
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static void nximage_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos, |
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uint8_t buttons, FAR void *arg) |
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{ |
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message("nximage_mousein: hwnd=%p pos=(%d,%d) button=%02x\n", |
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hwnd, pos->x, pos->y, buttons); |
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} |
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#endif |
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/**************************************************************************** |
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* Name: nximage_kbdin |
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* |
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* Description: |
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* NX keyboard input handler |
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* |
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****************************************************************************/ |
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#ifdef CONFIG_NX_KBD |
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static void nximage_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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gvdbg("hwnd=%p nch=%d\n", hwnd, nch); |
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/* In this example, there is no keyboard so a keyboard event is not |
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* expected. |
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*/ |
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message("nximage_kbdin: Unexpected keyboard callback\n"); |
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} |
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#endif |
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/**************************************************************************** |
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* Public Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Name: nximage_image |
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* |
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* Description: |
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* Put the NuttX logo in the center of the display. |
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* |
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****************************************************************************/ |
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void nximage_image(NXWINDOW hwnd) |
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{ |
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FAR const void *state = NULL; |
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FAR struct nxgl_point_s pos; |
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FAR struct nxgl_rect_s dest; |
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FAR const void *src[CONFIG_NX_NPLANES]; |
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nxgl_coord_t row; |
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int ret; |
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#if defined(CONFIG_EXAMPLES_NXIMAGE_YSCALEp5) || defined(CONFIG_EXAMPLES_NXIMAGE_YSCALE1p5) |
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int i; |
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#endif |
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/* Center the image. Note: these may extend off the display. */ |
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pos.x = (g_nximage.xres - SCALED_WIDTH) / 2; |
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pos.y = (g_nximage.yres - SCALED_HEIGHT) / 2; |
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/* Set up the invariant part of the destination bounding box */ |
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dest.pt1.x = pos.x; |
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dest.pt2.x = pos.x + SCALED_WIDTH - 1; |
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/* Now output the rows */ |
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for (row = 0; row < IMAGE_HEIGHT; row += NINPUT_ROWS) |
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{ |
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/* Read input row(s) */ |
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nximage_blitrow(g_runs[0].run, &state); |
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#if NINPUT_ROWS > 1 |
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nximage_blitrow(g_runs[1].run, &state); |
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#endif |
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/* Output rows before averaging */ |
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#if defined(CONFIG_EXAMPLES_NXIMAGE_YSCALE1p5) || defined(CONFIG_EXAMPLES_NXIMAGE_YSCALE2p0) |
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/* Output row[0] */ |
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dest.pt1.y = pos.y; |
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dest.pt2.y = pos.y; |
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src[0] = (FAR const void *)g_runs[0].run; |
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#if CONFIG_NX_NPLANES > 1 |
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# warning "More logic is needed for the case where CONFIG_NX_PLANES > 1" |
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#endif |
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ret = nx_bitmap((NXWINDOW)hwnd, &dest, src, &pos, SCALED_WIDTH*sizeof(nxgl_mxpixel_t)); |
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if (ret < 0) |
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{ |
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message("nximage_image: nx_bitmapwindow failed: %d\n", errno); |
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} |
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/* Increment the vertical position */ |
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pos.y++; |
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#endif |
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/* Perform averaging */ |
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#if defined(CONFIG_EXAMPLES_NXIMAGE_YSCALEp5) || defined(CONFIG_EXAMPLES_NXIMAGE_YSCALE1p5) |
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/* Average row[0] and row[1], output results in row[0] */ |
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for (i = 0; i < SCALED_WIDTH; i++) |
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{ |
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/* Only average if the corresponding pixels in each row differ */ |
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nxgl_mxpixel_t pix0 = g_runs[0].run[i]; |
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nxgl_mxpixel_t pix1 = g_runs[1].run[i]; |
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if (pix0 != pix1) |
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{ |
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g_runs[0].run[i] = nximage_avgcolor(pix0, pix1); |
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} |
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} |
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#endif |
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/* Output rows after averaging */ |
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/* Output row[0] */ |
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dest.pt1.y = pos.y; |
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dest.pt2.y = pos.y; |
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src[0] = (FAR const void *)g_runs[0].run; |
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#if CONFIG_NX_NPLANES > 1 |
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# warning "More logic is needed for the case where CONFIG_NX_PLANES > 1" |
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#endif |
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ret = nx_bitmap((NXWINDOW)hwnd, &dest, src, &pos, SCALED_WIDTH*sizeof(nxgl_mxpixel_t)); |
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if (ret < 0) |
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{ |
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message("nximage_image: nx_bitmapwindow failed: %d\n", errno); |
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} |
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/* Increment the vertical position */ |
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pos.y++; |
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#if defined(CONFIG_EXAMPLES_NXIMAGE_YSCALE1p5) |
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/* Output row[0] and row[1] */ |
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dest.pt1.y = pos.y; |
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dest.pt2.y = pos.y; |
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src[0] = (FAR const void *)g_runs[1].run; |
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#if CONFIG_NX_NPLANES > 1 |
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# warning "More logic is needed for the case where CONFIG_NX_PLANES > 1" |
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#endif |
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ret = nx_bitmap((NXWINDOW)hwnd, &dest, src, &pos, SCALED_WIDTH*sizeof(nxgl_mxpixel_t)); |
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if (ret < 0) |
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{ |
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message("nximage_image: nx_bitmapwindow failed: %d\n", errno); |
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} |
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/* Increment the vertical position */ |
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pos.y++; |
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#endif |
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} |
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}
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