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/lvgl-2.7.6/src/lv_draw/
Dlv_img_buf.h300 int32_t xt = x - dsc->cfg.pivot_x; in _lv_img_buf_transform() local
307 …xs = ((dsc->tmp.cosma * xt - dsc->tmp.sinma * yt) >> (_LV_TRANSFORM_TRIGO_SHIFT - 8)) + dsc->tmp.p… in _lv_img_buf_transform()
308 …ys = ((dsc->tmp.sinma * xt + dsc->tmp.cosma * yt) >> (_LV_TRANSFORM_TRIGO_SHIFT - 8)) + dsc->tmp.p… in _lv_img_buf_transform()
311 xt = (int32_t)((int32_t)xt * dsc->tmp.zoom_inv) >> _LV_ZOOM_INV_UPSCALE; in _lv_img_buf_transform()
313 xs = xt + dsc->tmp.pivot_x_256; in _lv_img_buf_transform()
317 xt = (int32_t)((int32_t)xt * dsc->tmp.zoom_inv) >> _LV_ZOOM_INV_UPSCALE; in _lv_img_buf_transform()
319 …xs = ((dsc->tmp.cosma * xt - dsc->tmp.sinma * yt) >> (_LV_TRANSFORM_TRIGO_SHIFT)) + dsc->tmp.pivot… in _lv_img_buf_transform()
320 …ys = ((dsc->tmp.sinma * xt + dsc->tmp.cosma * yt) >> (_LV_TRANSFORM_TRIGO_SHIFT)) + dsc->tmp.pivot… in _lv_img_buf_transform()
Dlv_img_buf.c524 lv_coord_t xt; in _lv_img_buf_get_transformed_area() local
527 xt = res->x1; in _lv_img_buf_get_transformed_area()
529 lt.x = ((cosma * xt - sinma * yt) >> _LV_TRANSFORM_TRIGO_SHIFT) + pivot->x; in _lv_img_buf_get_transformed_area()
530 lt.y = ((sinma * xt + cosma * yt) >> _LV_TRANSFORM_TRIGO_SHIFT) + pivot->y; in _lv_img_buf_get_transformed_area()
532 xt = res->x2; in _lv_img_buf_get_transformed_area()
534 rt.x = ((cosma * xt - sinma * yt) >> _LV_TRANSFORM_TRIGO_SHIFT) + pivot->x; in _lv_img_buf_get_transformed_area()
535 rt.y = ((sinma * xt + cosma * yt) >> _LV_TRANSFORM_TRIGO_SHIFT) + pivot->y; in _lv_img_buf_get_transformed_area()
537 xt = res->x1; in _lv_img_buf_get_transformed_area()
539 lb.x = ((cosma * xt - sinma * yt) >> _LV_TRANSFORM_TRIGO_SHIFT) + pivot->x; in _lv_img_buf_get_transformed_area()
540 lb.y = ((sinma * xt + cosma * yt) >> _LV_TRANSFORM_TRIGO_SHIFT) + pivot->y; in _lv_img_buf_get_transformed_area()
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