/* this is called from dpy_update() each time a hardware framebuffer
* rectangular update was detected. Send this to the QFrameBuffer.
*/
static void android_display_update(DisplayChangeListener* dcl,
int x,
int y,
int w,
int h) {
if (QFrameBuffer* qfbuff = asDcl(dcl)->fb) {
qframebuffer_update(qfbuff, x, y, w, h);
}
}
/*
* Updates a display rectangle.
* Param
* fb - Framebuffer where to update the rectangle.
* x, y, w, and h define rectangle to update.
* bits_per_pixel define number of bits used to encode a single pixel.
* pixels contains pixels for the rectangle. Buffer addressed by this parameter
* must be eventually freed with free()
*/
static void
update_rect(QFrameBuffer* fb, uint16_t x, uint16_t y, uint16_t w, uint16_t h,
uint8_t bits_per_pixel, uint8_t* pixels)
{
if (fb != NULL) {
uint16_t n;
const uint8_t* src = pixels;
const uint16_t src_line_size = w * ((bits_per_pixel + 7) / 8);
uint8_t* dst = (uint8_t*)fb->pixels + y * fb->pitch + x * fb->bytes_per_pixel;
for (n = 0; n < h; n++) {
memcpy(dst, src, src_line_size);
src += src_line_size;
dst += fb->pitch;
}
qframebuffer_update(fb, x, y, w, h);
}
free(pixels);
}