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Add shortcuts to change the camera zoom

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MOD+up and MOD+zoom change the camera zoom.

TODO ref 6243

Signed-off-by: Romain Vimont <rom@rom1v.com>
This commit is contained in:
Tommie
2025-07-20 11:50:16 -04:00
committed by Romain Vimont
parent 30203b527d
commit bacd1a0c5f
9 changed files with 152 additions and 0 deletions
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8
app/src/control_msg.c
View File

@@ -191,6 +191,8 @@ sc_control_msg_serialize(const struct sc_control_msg *msg, uint8_t *buf) {
case SC_CONTROL_MSG_TYPE_ROTATE_DEVICE:
case SC_CONTROL_MSG_TYPE_OPEN_HARD_KEYBOARD_SETTINGS:
case SC_CONTROL_MSG_TYPE_RESET_VIDEO:
case SC_CONTROL_MSG_TYPE_CAMERA_ZOOM_IN:
case SC_CONTROL_MSG_TYPE_CAMERA_ZOOM_OUT:
// no additional data
return 1;
default:
@@ -325,6 +327,12 @@ sc_control_msg_log(const struct sc_control_msg *msg) {
LOG_CMSG("camera set torch %s",
msg->camera_set_torch.on ? "on" : "off");
break;
case SC_CONTROL_MSG_TYPE_CAMERA_ZOOM_IN:
LOG_CMSG("camera zoom in");
break;
case SC_CONTROL_MSG_TYPE_CAMERA_ZOOM_OUT:
LOG_CMSG("camera zoom out");
break;
default:
LOG_CMSG("unknown type: %u", (unsigned) msg->type);
break;

2
app/src/control_msg.h
View File

@@ -44,6 +44,8 @@ enum sc_control_msg_type {
SC_CONTROL_MSG_TYPE_START_APP,
SC_CONTROL_MSG_TYPE_RESET_VIDEO,
SC_CONTROL_MSG_TYPE_CAMERA_SET_TORCH,
SC_CONTROL_MSG_TYPE_CAMERA_ZOOM_IN,
SC_CONTROL_MSG_TYPE_CAMERA_ZOOM_OUT,
};
enum sc_copy_key {

36
app/src/input_manager.c
View File

@@ -315,6 +315,30 @@ camera_set_torch(struct sc_input_manager *im, bool on) {
}
}
static void
camera_zoom_in(struct sc_input_manager *im) {
assert(im->controller && im->camera);
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_CAMERA_ZOOM_IN;
if (!sc_controller_push_msg(im->controller, &msg)) {
LOGW("Could not request camera zoom in");
}
}
static void
camera_zoom_out(struct sc_input_manager *im) {
assert(im->controller && im->camera);
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_CAMERA_ZOOM_OUT;
if (!sc_controller_push_msg(im->controller, &msg)) {
LOGW("Could not request camera zoom out");
}
}
static void
apply_orientation_transform(struct sc_input_manager *im,
enum sc_orientation transform) {
@@ -601,6 +625,18 @@ sc_input_manager_process_key(struct sc_input_manager *im,
camera_set_torch(im, !shift);
}
return;
case SDLK_DOWN:
if (!shift && down && !paused) {
// forward repeated events
camera_zoom_out(im);
}
return;
case SDLK_UP:
if (!shift && down && !paused) {
// forward repeated events
camera_zoom_in(im);
}
return;
}
}

32
app/tests/test_control_msg_serialize.c
View File

@@ -465,6 +465,36 @@ static void test_serialize_camera_set_torch(void) {
assert(!memcmp(buf, expected, sizeof(expected)));
}
static void test_serialize_camera_zoom_in(void) {
struct sc_control_msg msg = {
.type = SC_CONTROL_MSG_TYPE_CAMERA_ZOOM_IN,
};
uint8_t buf[SC_CONTROL_MSG_MAX_SIZE];
size_t size = sc_control_msg_serialize(&msg, buf);
assert(size == 1);
const uint8_t expected[] = {
SC_CONTROL_MSG_TYPE_CAMERA_ZOOM_IN,
};
assert(!memcmp(buf, expected, sizeof(expected)));
}
static void test_serialize_camera_zoom_out(void) {
struct sc_control_msg msg = {
.type = SC_CONTROL_MSG_TYPE_CAMERA_ZOOM_OUT,
};
uint8_t buf[SC_CONTROL_MSG_MAX_SIZE];
size_t size = sc_control_msg_serialize(&msg, buf);
assert(size == 1);
const uint8_t expected[] = {
SC_CONTROL_MSG_TYPE_CAMERA_ZOOM_OUT,
};
assert(!memcmp(buf, expected, sizeof(expected)));
}
int main(int argc, char *argv[]) {
(void) argc;
(void) argv;
@@ -490,5 +520,7 @@ int main(int argc, char *argv[]) {
test_serialize_start_app();
test_serialize_reset_video();
test_serialize_camera_set_torch();
test_serialize_camera_zoom_in();
test_serialize_camera_zoom_out();
return 0;
}

2
server/src/main/java/com/genymobile/scrcpy/control/ControlMessage.java
View File

@@ -26,6 +26,8 @@ public final class ControlMessage {
public static final int TYPE_START_APP = 16;
public static final int TYPE_RESET_VIDEO = 17;
public static final int TYPE_CAMERA_SET_TORCH = 18;
public static final int TYPE_CAMERA_ZOOM_IN = 19;
public static final int TYPE_CAMERA_ZOOM_OUT = 20;
public static final long SEQUENCE_INVALID = 0;

2
server/src/main/java/com/genymobile/scrcpy/control/ControlMessageReader.java
View File

@@ -47,6 +47,8 @@ public class ControlMessageReader {
case ControlMessage.TYPE_ROTATE_DEVICE:
case ControlMessage.TYPE_OPEN_HARD_KEYBOARD_SETTINGS:
case ControlMessage.TYPE_RESET_VIDEO:
case ControlMessage.TYPE_CAMERA_ZOOM_IN:
case ControlMessage.TYPE_CAMERA_ZOOM_OUT:
return ControlMessage.createEmpty(type);
case ControlMessage.TYPE_UHID_CREATE:
return parseUhidCreate();

6
server/src/main/java/com/genymobile/scrcpy/control/Controller.java
View File

@@ -376,6 +376,12 @@ public class Controller implements AsyncProcessor, VirtualDisplayListener {
case ControlMessage.TYPE_CAMERA_SET_TORCH:
cameraCapture.setTorchEnabled(msg.getOn());
return true;
case ControlMessage.TYPE_CAMERA_ZOOM_IN:
cameraCapture.zoomIn();
return true;
case ControlMessage.TYPE_CAMERA_ZOOM_OUT:
cameraCapture.zoomOut();
return true;
default:
// fall through
}

32
server/src/main/java/com/genymobile/scrcpy/video/CameraCapture.java
View File

@@ -54,6 +54,8 @@ public class CameraCapture extends SurfaceCapture {
0, 1, 0, 1, // column 4
};
private static final float ZOOM_FACTOR = 1 + 1 / 16f;
private final String explicitCameraId;
private final CameraFacing cameraFacing;
private final Size explicitSize;
@@ -470,6 +472,36 @@ public class CameraCapture extends SurfaceCapture {
});
}
private void zoom(boolean in) {
cameraHandler.post(() -> {
assertCameraThread();
if (currentSession != null && requestBuilder != null) {
// Always align to log values
double z = Math.round(Math.log(zoom) / Math.log(ZOOM_FACTOR));
double dir = in ? 1 : -1;
zoom = (float) Math.pow(ZOOM_FACTOR, z + dir);
try {
zoom = clampZoom(zoom);
Ln.i("Set camera zoom: " + zoom);
requestBuilder.set(CaptureRequest.CONTROL_ZOOM_RATIO, zoom);
CaptureRequest request = requestBuilder.build();
setRepeatingRequest(currentSession, request);
} catch (CameraAccessException e) {
Ln.e("Camera error", e);
}
}
});
}
public void zoomIn() {
zoom(true);
}
public void zoomOut() {
zoom(false);
}
private float clampZoom(float value) {
assertCameraThread();
if (zoomRange == null) {

32
server/src/test/java/com/genymobile/scrcpy/control/ControlMessageReaderTest.java
View File

@@ -440,6 +440,38 @@ public class ControlMessageReaderTest {
Assert.assertEquals(-1, bis.read()); // EOS
}
@Test
public void testParseCameraZoomIn() throws IOException {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(bos);
dos.writeByte(ControlMessage.TYPE_CAMERA_ZOOM_IN);
byte[] packet = bos.toByteArray();
ByteArrayInputStream bis = new ByteArrayInputStream(packet);
ControlMessageReader reader = new ControlMessageReader(bis);
ControlMessage event = reader.read();
Assert.assertEquals(ControlMessage.TYPE_CAMERA_ZOOM_IN, event.getType());
Assert.assertEquals(-1, bis.read()); // EOS
}
@Test
public void testParseCameraZoomIn() throws IOException {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(bos);
dos.writeByte(ControlMessage.TYPE_CAMERA_ZOOM_OUT);
byte[] packet = bos.toByteArray();
ByteArrayInputStream bis = new ByteArrayInputStream(packet);
ControlMessageReader reader = new ControlMessageReader(bis);
ControlMessage event = reader.read();
Assert.assertEquals(ControlMessage.TYPE_CAMERA_ZOOM_OUT, event.getType());
Assert.assertEquals(-1, bis.read()); // EOS
}
@Test
public void testMultiEvents() throws IOException {
ByteArrayOutputStream bos = new ByteArrayOutputStream();