pxt-ev3/libs/core/screen.cpp
2017-07-07 10:38:20 +01:00

88 lines
1.6 KiB
C++

#include "pxt.h"
#include "ev3.h"
#include <pthread.h>
/**
* Drawing modes
*/
enum class Draw {
Normal = 0, // set pixels to black, no fill
Clear = DRAW_OPT_CLEAR_PIXELS,
Xor = DRAW_OPT_LOGICAL_XOR,
Fill = DRAW_OPT_FILL_SHAPE,
};
enum class ScreenFont {
Normal = FONTTYPE_NORMAL,
Small = FONTTYPE_SMALL,
Large = FONTTYPE_LARGE,
Tiny = FONTTYPE_TINY,
};
#define XX(v) ((uint32_t)(v)&0xffff)
#define YY(v) ((uint32_t)(v) >> 16)
// We only support up to 4 arguments for C++ functions - need to pack them on the TS side
namespace screen {
//%
void _drawLine(uint32_t p0, uint32_t p1, Draw mode) {
LineOutEx(XX(p0), YY(p0), XX(p1), YY(p1), (uint32_t)mode);
}
//%
void _drawRect(uint32_t p0, uint32_t p1, Draw mode) {
RectOutEx(XX(p0), YY(p0), XX(p1), YY(p1), (uint32_t)mode);
}
//%
void _drawEllipse(uint32_t p0, uint32_t p1, Draw mode) {
EllipseOutEx(XX(p0), YY(p0), XX(p1), YY(p1), (uint32_t)mode);
}
/** Draw text. */
//% mode.defl=0
void drawText(int x, int y, String text, Draw mode) {
LcdText((int)mode & (int)Draw::Clear ? 0 : 1, x, y, text->data);
}
/** Clear screen and reset font to normal. */
//%
void clear() {
LcdClearDisplay();
}
/** Scroll screen vertically. */
//%
void scroll(int v) {
LcdScroll(v);
}
/** Set font for drawText() */
//%
void setFont(ScreenFont font) {
LcdSelectFont((uint8_t)font);
}
}
namespace pxt {
void *screenRefresh(void *dummy) {
while (true) {
sleep_core_us(30000);
LcdUpdate();
}
}
void screen_init() {
LcdInitNoAutoRefresh();
LcdClean();
pthread_t pid;
pthread_create(&pid, NULL, screenRefresh, NULL);
pthread_detach(pid);
}
}