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...