iriver Dicple D88 >> RetroFW >> C/C++

Keyboard


main.c

#include <stdio.h>
#include <stdlib.h>
#include <SDL.h>
#include <SDL_gfxPrimitives.h>

#define SCALE_W 3.4
#define SCALE_H 3.4

SDL_Surface *screen = NULL;
int key_map[1024] = {0};
int key_status[5 * 12] = {0};
char key_name[5 * 12][32] = {
    "ESC",   " 1",  " 2", " 3", " 4",   " 5",   " 6", " 7", " 8",   " 9",   " 0",    " BS",
    " Q",    " W",  " E", " R", " T",   " Y",   " U", " I", " O",   " P",   "CTRL",  "",
    " \\",   " A",  " S", " D", " F",   " G",   " H", " J", " K",   " L",   "ENTER", "",
    "SHIFT", " Z",  " X", " C", " V",   " B",   " N", " M", " ;",   " UP",  "SHIFT", "",
    " ,",    "DEL", " -", " =", "TAB", "SPACE", " .", " /", "LEFT", "DOWN", "RIGHT", "",
};

int draw_bg(void)
{
    int x = 0, y = 0;
    SDL_Rect rt = {0};
    uint32_t c_rel = 0xf800;
    int rows[] = {12, 11, 11, 11, 11};
    int cols[5 * 12] = {
        11, 11, 11, 10, 10, 10, 10, 10, 10, 11, 11, 12,
        18, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 0,
        10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 19, 0,
        17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 0,
        10, 10, 10, 10, 10, 24, 10, 10, 11, 11, 12, 0,
    };

    int xx = 0;
    key_status[0] = 0;
    for (y = 0; y < 5; y++) {
        xx = 0;
        for (x = 0; x < rows[y]; x++) {
            rt.x = 2 + xx;
            rt.y = 16 + (11 + 1) * y;
            rt.w = cols[(y * 12) + x];
            rt.h = 11;
            xx+= cols[(y * 12) + x] + 1;

            rt.x = (float)rt.x * SCALE_W;
            rt.y = (float)rt.y * SCALE_H;
            rt.w = (float)rt.w * SCALE_W;
            rt.h = (float)rt.h * SCALE_H;
            SDL_FillRect(screen, &rt, key_status[(y * 12) + x] ? 0xf800 : 0xffff);
            stringRGBA(screen, rt.x + 3, rt.y + 15, key_name[(y * 12) + x], 0x00, 0x00, 0x00, 0xff);
        }
    }
    stringRGBA(screen, 10, 27, "iriver Dicple D88", 0xff, 0xff, 0x00, 0xff);
}

int main(int argc, char* args[])
{
    int cc = 0;

    key_map[SDLK_ESCAPE]    = 0 * 12 + 0;
    key_map[SDLK_1]         = 0 * 12 + 1;
    key_map[SDLK_2]         = 0 * 12 + 2;
    key_map[SDLK_3]         = 0 * 12 + 3;
    key_map[SDLK_4]         = 0 * 12 + 4;
    key_map[SDLK_5]         = 0 * 12 + 5;
    key_map[SDLK_6]         = 0 * 12 + 6;
    key_map[SDLK_7]         = 0 * 12 + 7;
    key_map[SDLK_8]         = 0 * 12 + 8;
    key_map[SDLK_9]         = 0 * 12 + 9;
    key_map[SDLK_0]         = 0 * 12 + 10;
    key_map[SDLK_BACKSPACE] = 0 * 12 + 11;
    key_map[SDLK_q]         = 1 * 12 + 0;
    key_map[SDLK_w]         = 1 * 12 + 1;
    key_map[SDLK_e]         = 1 * 12 + 2;
    key_map[SDLK_r]         = 1 * 12 + 3;
    key_map[SDLK_t]         = 1 * 12 + 4;
    key_map[SDLK_y]         = 1 * 12 + 5;
    key_map[SDLK_u]         = 1 * 12 + 6;
    key_map[SDLK_i]         = 1 * 12 + 7;
    key_map[SDLK_o]         = 1 * 12 + 8;
    key_map[SDLK_p]         = 1 * 12 + 9;
    key_map[SDLK_LCTRL]     = 1 * 12 + 10;
    key_map[SDLK_BACKSLASH] = 2 * 12 + 0;
    key_map[SDLK_a]         = 2 * 12 + 1;
    key_map[SDLK_s]         = 2 * 12 + 2;
    key_map[SDLK_d]         = 2 * 12 + 3;
    key_map[SDLK_f]         = 2 * 12 + 4;
    key_map[SDLK_g]         = 2 * 12 + 5;
    key_map[SDLK_h]         = 2 * 12 + 6;
    key_map[SDLK_j]         = 2 * 12 + 7;
    key_map[SDLK_k]         = 2 * 12 + 8;
    key_map[SDLK_l]         = 2 * 12 + 9;
    key_map[SDLK_RETURN]    = 2 * 12 + 10;
    key_map[SDLK_LSHIFT]    = 3 * 12 + 0;
    key_map[SDLK_z]         = 3 * 12 + 1;
    key_map[SDLK_x]         = 3 * 12 + 2;
    key_map[SDLK_c]         = 3 * 12 + 3;
    key_map[SDLK_v]         = 3 * 12 + 4;
    key_map[SDLK_b]         = 3 * 12 + 5;
    key_map[SDLK_n]         = 3 * 12 + 6;
    key_map[SDLK_m]         = 3 * 12 + 7;
    key_map[SDLK_SEMICOLON] = 3 * 12 + 8;
    key_map[SDLK_UP]        = 3 * 12 + 9;
    key_map[SDLK_COMMA]     = 4 * 12 + 0;
    key_map[SDLK_DELETE]    = 4 * 12 + 1;
    key_map[SDLK_MINUS]     = 4 * 12 + 2;
    key_map[SDLK_EQUALS]    = 4 * 12 + 3;
    key_map[SDLK_TAB]       = 4 * 12 + 4;
    key_map[SDLK_SPACE]     = 4 * 12 + 5;
    key_map[SDLK_PERIOD]    = 4 * 12 + 6;
    key_map[SDLK_SLASH]     = 4 * 12 + 7;
    key_map[SDLK_LEFT]      = 4 * 12 + 8;
    key_map[SDLK_DOWN]      = 4 * 12 + 9;
    key_map[SDLK_RIGHT]     = 4 * 12 + 10;

    SDL_Init(SDL_INIT_VIDEO);
    screen = SDL_SetVideoMode(480, 272, 16, SDL_SWSURFACE);
    SDL_ShowCursor(0);
    SDL_FillRect(screen, &screen->clip_rect, SDL_MapRGB(screen->format, 0x00, 0x00, 0x00));

    draw_bg();
    SDL_Flip(screen);

    int redraw = 0;
    SDL_Event event;
    while (1) {
        redraw = 0;
        if (SDL_PollEvent(&event)) {
            if (event.type == SDL_KEYDOWN) {
                redraw = 1;
                key_status[key_map[event.key.keysym.sym]] = 1;
                if (event.key.keysym.sym == SDLK_LSHIFT) {
                    key_status[3 * 12 + 10] = 1;
                }
                if (event.key.keysym.sym == SDLK_ESCAPE) {
                    break;
                }
            }

            if (event.type == SDL_KEYUP) {
                redraw = 1;
                key_status[key_map[event.key.keysym.sym]] = 0;
                if (event.key.keysym.sym == SDLK_LSHIFT) {
                    key_status[3 * 12 + 10] = 0;
                }
            }

            if (redraw) {
                draw_bg();
                SDL_Flip(screen);
            }
        }
        SDL_Delay(30);
    }
    SDL_Quit();
    return 0;
}

Makefile

CROSS = mipsel-linux-

all:
	$(CROSS)gcc main.c -o kbd2 -I/opt/retrofw/mipsel-buildroot-linux-uclibc/sysroot/usr/include/SDL -lSDL -lSDL_image -lSDL_gfx 

clean:
	rm -rf kbd2

這鍵盤設計真有問題,卡鍵問題太嚴重,而且除了CTRL、SHIFT,其餘按鍵也無法同時按下...


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