int camera_get_trim_rect(struct img_rect *src_trim_rect, uint32_t zoom_level, struct img_size *dst_size)
{
uint32_t trim_width;
uint32_t trim_height;
uint32_t zoom_step_w = 0, zoom_step_h = 0;
if (NULL == src_trim_rect || NULL == dst_size) {
CMR_LOGE("0x%x, 0x%x", (uint32_t)src_trim_rect, (uint32_t)dst_size);
return -CAMERA_INVALID_PARM;
}
trim_width = src_trim_rect->width;
trim_height = src_trim_rect->height;
if (0 == dst_size->width || 0 == dst_size->height) {
CMR_LOGE("0x%x, 0x%x", dst_size->width, dst_size->height);
return -CAMERA_INVALID_PARM;
}
if (dst_size->width * src_trim_rect->height < dst_size->height * src_trim_rect->width) {
trim_width = dst_size->width * src_trim_rect->height / dst_size->height;
} else {
trim_height = dst_size->height * src_trim_rect->width / dst_size->width;
}
zoom_step_w = ZOOM_STEP(trim_width);
zoom_step_w &= ~1;
zoom_step_w *= zoom_level;
zoom_step_h = ZOOM_STEP(trim_height);
zoom_step_h &= ~1;
zoom_step_h *= zoom_level;
trim_width = trim_width - zoom_step_w;
trim_height = trim_height - zoom_step_h;
src_trim_rect->start_x += (src_trim_rect->width - trim_width) >> 1;
src_trim_rect->start_y += (src_trim_rect->height - trim_height) >> 1;
src_trim_rect->start_x = CAMERA_WIDTH(src_trim_rect->start_x);
src_trim_rect->start_y = CAMERA_HEIGHT(src_trim_rect->start_y);
src_trim_rect->width = CAMERA_WIDTH(trim_width);
src_trim_rect->height = CAMERA_HEIGHT(trim_height);
CMR_LOGI("zoom_level %d, trim rect, %d %d %d %d",
zoom_level,
src_trim_rect->start_x,
src_trim_rect->start_y,
src_trim_rect->width,
src_trim_rect->height);
return CAMERA_SUCCESS;
}
cmr_int camera_get_trim_rect(struct img_rect *src_trim_rect, cmr_uint zoom_level, struct img_size *dst_size)
{
cmr_int ret = CMR_CAMERA_SUCCESS;
cmr_uint trim_width = 0, trim_height = 0;
cmr_uint zoom_step_w = 0, zoom_step_h = 0;
if (!src_trim_rect || !dst_size) {
CMR_LOGE("0x%lx 0x%lx", (cmr_uint)src_trim_rect, (cmr_uint)dst_size);
ret = -CMR_CAMERA_INVALID_PARAM;
goto exit;
}
trim_width = src_trim_rect->width;
trim_height = src_trim_rect->height;
if (0 == dst_size->width || 0 == dst_size->height) {
CMR_LOGE("0x%x 0x%x", dst_size->width, dst_size->height);
ret = -CMR_CAMERA_INVALID_PARAM;
goto exit;
}
if (dst_size->width * src_trim_rect->height < dst_size->height * src_trim_rect->width) {
trim_width = dst_size->width * src_trim_rect->height / dst_size->height;
} else {
trim_height = dst_size->height * src_trim_rect->width / dst_size->width;
}
zoom_step_w = ZOOM_STEP(trim_width);
zoom_step_w &= ~1;
zoom_step_w *= zoom_level;
zoom_step_h = ZOOM_STEP(trim_height);
zoom_step_h &= ~1;
zoom_step_h *= zoom_level;
trim_width = trim_width - zoom_step_w;
trim_height = trim_height - zoom_step_h;
src_trim_rect->start_x += (src_trim_rect->width - trim_width) >> 1;
src_trim_rect->start_y += (src_trim_rect->height - trim_height) >> 1;
src_trim_rect->start_x = CAMERA_WIDTH(src_trim_rect->start_x);
src_trim_rect->start_y = CAMERA_HEIGHT(src_trim_rect->start_y);
src_trim_rect->width = CAMERA_WIDTH(trim_width);
src_trim_rect->height = CAMERA_HEIGHT(trim_height);
CMR_LOGI("zoom_level %ld trim rect %d %d %d %d", zoom_level, src_trim_rect->start_x,
src_trim_rect->start_y, src_trim_rect->width, src_trim_rect->height);
exit:
return ret;
}
