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| #include <pthread.h>
|
| typedef enum {
| TOUCH_START = 0,
| TOUCH_DRAG = 1,
| TOUCH_RELEASE = 2,
| TOUCH_HOLD = 3,
| TOUCH_REPEAT = 4
| } TOUCH_STATE;
|
| #undef MAX
| #define MAX(a,b) ((a) > (b) ? (a) : (b))
| #undef MIN
| #define MIN(a,b) ((a) < (b) ? (a) : (b))
| #undef ABS
| #define ABS(a) ((a) >= 0 ? (a) : (-(a)))
|
| static pthread_mutex_t gUpdateMutex = PTHREAD_MUTEX_INITIALIZER;
|
| int draw_dot(int x, int y)
| {
| if(x < 0 || y < 0){
| // LOGE("%s invalid dot! (%d,%d), \n", x, y);
| return -1;
| }
|
| // LOGE("draw (%d,%d)\n", x, y);
| pthread_mutex_lock(&gUpdateMutex);
| // drawline(0,0,255,255,x,y,2,2);
| gr_color(0, 0, 255, 255);
| gr_fill(x, y, 2, 2);
| //gr_flip();
| pthread_mutex_unlock(&gUpdateMutex);
|
| //FillColor(0, 0, 255, 255,x, y, 1, 1);
|
|
| return 0;
| }
|
| int draw_line(int x1, int y1, int x2, int y2)
| {
| int x, y;
|
| // printf("line: (%d,%d)-(%d,%d)\n", x1, y1, x2, y2);
|
| if(x1 == x2){
| x = x1;
| for(y = MIN(y1, y2); y <= MAX(y1, y2); y++)
| draw_dot(x, y);
| }else if(y1 == y2){
| y = y1;
| for(x = MIN(x1, x2); x <= MAX(x1, x2); x++)
| draw_dot(x, y);
| }else if(ABS(x1-x2) > ABS(y1-y2)){
| for(x = MIN(x1, x2); x <= MAX(x1, x2); x++){
| y = ((y2 - y1) * (x - x1)) / (x2 - x1) + y1;
| draw_dot(x, y);
| }
| }else{
| for(y = MIN(y1, y2); y <= MAX(y1, y2); y++){
| x = ((x2 - x1) * (y - y1)) / (y2 - y1) + x1;
| draw_dot(x, y);
| }
| }
|
| return 0;
| }
|
| int last_x = 0, last_y = 0;
| #ifdef SOFIA3GR_PCBA
| extern int sync_screen_for_prompt(void);
| #endif
|
| int NotifyTouch(int action, int x, int y)
| {
| switch(action){
| case TOUCH_START:
| draw_dot(x, y);
| last_x = x;
| last_y = y;
|
| break;
| case TOUCH_DRAG:
| draw_line(last_x, last_y, x, y);
| last_x = x;
| last_y = y;
| pthread_mutex_lock(&gUpdateMutex);
| gr_flip();
| pthread_mutex_unlock(&gUpdateMutex);
|
| break;
| case TOUCH_RELEASE:
| pthread_mutex_lock(&gUpdateMutex);
| gr_flip();
| pthread_mutex_unlock(&gUpdateMutex);
| #ifdef SOFIA3GR_PCBA
| sync_screen_for_prompt();
| #endif
| break;
| case TOUCH_HOLD:
| break;
| case TOUCH_REPEAT:
| break;
| default:
| break;
| }
|
| return 0;
| }
|
|
