Commit graph

44 commits

Author SHA1 Message Date
Romain Vimont
eb09fefd43 Timeout the server socket connection
Wait no more than 2 seconds for accepting the connection from the
device, since it blocks the event loop, preventing to react to SIGTERM
(Ctrl+C).
2018-02-09 16:21:10 +01:00
Romain Vimont
90a46b4c45 Improve startup time
On startup, the client has to:
 1. listen on a port
 2. push and start the server to the device
 3. wait for the server to connect (accept)
 4. read device name and size
 5. initialize SDL
 6. initialize the window and renderer
 7. show the window

From the execution of the app_process command to start the server on the
device, to the execution of the java main method, it takes ~800ms. As a
consequence, step 3 also takes ~800ms on the client.

Once complete, the client initializes SDL, which takes ~500ms.

These two expensive actions are executed sequentially:

                     HOST              DEVICE
listen on port        |                  |
push/start the server |----------------->|| app_process loads the jar
accept the connection .   ^              ||
                      .   |              ||
                      .   | WASTE        ||
                      .   |  OF          ||
                      .   | TIME         ||
                      .   |              ||
                      .   |              ||
                      .   v              X execution of our java main
connection accepted   |<-----------------| connect to the host
init SDL             ||                  |
                     || ,----------------| send frames
                     || |,---------------|
                     || ||,--------------|
                     || |||,-------------|
                     || ||||,------------|
init window/renderer  | |||||,-----------|
display frames        |<++++++-----------|
(many frames skipped)

The rationale for step 3 occuring before step 5 is that initializing
SDL replaces the SIGTERM handler to receive the event in the event loop,
so pressing Ctrl+C during step 5 would not work (since it blocks the
event loop).

But this is not so important; let's parallelize the SDL initialization
with the app_process execution (we'll just add a timeout to the
connection):

                     HOST              DEVICE
listen on port        |                  |
push/start the server |----------------->||app_process loads the jar
init SDL             ||                  ||
                     ||                  ||
                     ||                  ||
                     ||                  ||
                     ||                  ||
                     ||                  ||
accept the connection .                  ||
                      .                  X execution of our java main
connection accepted   |<-----------------| connect to the host
init window/renderer  |                  |
display frames        |<-----------------| send frames
                      |<-----------------|

In addition, show the window only once the first frame is available to
avoid flickering (opening a black window for 100~200ms).

Note: the window and renderer are initialized after the connection is
accepted because they use the device information received from the
device.
2018-02-09 16:19:50 +01:00
Romain Vimont
523097eadf Provide decoder_init()
Expose an initializer so that the caller does not have to guess what
fields must be initialized.
2018-02-09 13:30:49 +01:00
Romain Vimont
4662198261 Do not release TCP sockets while still in use
SDLNet_TCP_Close() not only closes, but also release the resources.

Therefore, we must not close the socket if another thread attempts to
read it.

For that purpose, move socket closing from server_stop() to
server_destroy().
2018-02-09 12:59:36 +01:00
Romain Vimont
fe21d9dfb5 Move frame updating to screen.c
Replace screen_update() by a higher-level screen_update_frame() handling
the whole frame updating, so that scrcpy.c just call it without managing
implementation details.
2018-02-09 11:14:47 +01:00
Romain Vimont
127e56780a Fix deadlock on exit if SKIP_FRAMES disabled
On exit, the renderer will not consume frames anymore, so signal the
condition variable to wake up the decoder.
2018-02-09 09:41:05 +01:00
Romain Vimont
629c296207 Move frame swapping logic to frame.c
Expose frames_offer_decoded_frame() and frames_consume_rendered_frame()
so that callers are not exposed to frame swapping (between the decoding
and rendering frames) details.
2018-02-08 20:57:29 +01:00
Romain Vimont
0d7f050389 Unlock mutex on screen update failure
The mutex was not unlocked on all code paths.
2018-02-08 18:39:38 +01:00
Romain Vimont
e8dfb723af Move control-related code to screencontrol.c
Move the code handling user input from scrcpy.c to a separate file,
screencontrol.c.
2018-02-08 18:14:50 +01:00
Romain Vimont
e1749a0c09 Remove the "adb reverse" tunnel immediately
As soon as we accepted a connection, we can remove the "adb reverse"
tunnel.
2018-02-08 17:40:09 +01:00
Romain Vimont
3b06e7d500 Move device-related code to device.c
Move the code to read the initial device info from scrcpy.c to a
separate file, device.c.
2018-02-08 17:40:09 +01:00
Romain Vimont
28c5cc030b Move server-related code to server.c
The file server.c already existed, but exposed a low-level API. Make it
higher-level, so that scrcpy.c does not handle server details directly.
2018-02-08 17:40:09 +01:00
Romain Vimont
6c578b5caa Move screen-related code to screen.c
The file scrcpy.c contains too many different things in addition to the
main logic, so move the screen code to a separate file, screen.c.
2018-02-08 15:43:28 +01:00
Romain Vimont
ffae15e36a Rename control to controller
The struct decoder is defined in decoder.h.

For naming consistency, define the struct controller in controller.h.
2018-02-08 13:26:01 +01:00
Romain Vimont
7b7fd77134 Add missing static
Some functions in scrcpy.c are not used outside the file, so declare
them static.
2018-02-08 09:08:55 +01:00
Romain Vimont
f39de46a39 Add delay before stopping server
Let some time to print any exception trace before killing it.
2018-02-07 15:41:59 +01:00
Romain Vimont
cb1428223f Log user request to quit
Log at debug level user requests to quit.
2018-02-07 15:41:59 +01:00
Romain Vimont
8d30d40b79 Make SKIP_FRAMES a compilation flag
The skip_frames flag was a non-configurable runtime flag. Since it is
not exposed to the user, there is no need for a (possible) runtime cost.

For testing purpose, we still want it to be configurable, so make it a
compilation flag.
2018-02-07 15:40:24 +01:00
Romain Vimont
71c2bfdd22 Parse XPM without SDL_image
We encounter some problems with SDL2_image on MSYS2 (Windows), so
implement our own XPM parsing which does not depend on SDL_image.

The input XPM is considered safe (it's in our source repo), so do not
check XPM format errors. This implies that read_xpm() is not safe to
call on any unsafe input.

Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of
SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL
versions older than 2.0.5.
2018-02-05 19:24:33 +01:00
Romain Vimont
f22d4decca Enable mouse focus clickthrough only if available
The hint SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH appeared in SDL 2.0.5. Ignore
it if the SDL version is older.
2018-02-05 16:15:52 +01:00
Romain Vimont
52c89c7afb Add window icon
Add a bugdroid icon loaded from an XPM.
2018-02-05 14:46:00 +01:00
Romain Vimont
5eb91a4ca7 Fix scrcpy() return value
The scrcpy() function returns a SDL_bool to indicate its success, but
was initialized to 0 (SDL_FALSE) instead of SDL_TRUE.
2018-02-04 12:39:17 +01:00
Romain Vimont
69a359c7f4 Refactor actions calls
The purpose of handle_shortcut() was to group all actions together,
whether they are initiated from a text input event or a keycode event.

However, it did not handle the case where it was initiated from a mouse
event (a right-click must turn the screen on), since the action was
identified by the shortcut char.

Instead, expose one function per action, to be called directly from
where the event is handled.
2018-02-02 15:23:04 +01:00
Romain Vimont
d73dee9833 fixup! Handle all shortcuts in the same function 2018-02-02 15:17:03 +01:00
Romain Vimont
a139509f11 Turn screen on on right-click
The right-click is almost useless on Android, so use it to turn the
screen on.

Add a new control event type (command) to request the server to turn the
screen on.
2018-02-02 14:56:03 +01:00
Romain Vimont
deba69d022 Handle all shortcuts in the same function
Shortcuts are sometimes initiated from a keycode event, and sometimes
from a text input event.

Move the handling to a unique function.
2018-02-02 12:01:38 +01:00
Romain Vimont
7f6a565401 Extract shortcut actions to separate functions
To simplify event handling code, move all actions to separate functions.
2018-02-02 11:52:19 +01:00
Romain Vimont
f8ad007a28 Move switch fullscreen logs
Logs were printed by the caller of switch_fullscreen(). Move them inside
the function to simplify event handling code.
2018-02-02 11:48:05 +01:00
Romain Vimont
6fe7b84629 Add shortcuts for physical keys
Add shortcuts for HOME, BACK, APPS, POWER, VOLUME_UP and VOLUME_DOWN.
2018-02-02 11:39:25 +01:00
Romain Vimont
ca44585f96 Do not send simple mouse move events
Moving the mouse without any button pressed has no effect on Android.
Therefore, do not even send these very frequent events.
2018-02-02 09:26:25 +01:00
Romain Vimont
79b28eb68f Enable mouse focus clickthrough
Consider a click to gain focus as a click on the device.
2018-02-01 20:52:44 +01:00
Romain Vimont
6b546a87ab Add bit-rate command-line option
Add a command-line option (-b/--bit-rate) to customize the video
bit-rate.
2018-02-01 17:11:40 +01:00
Romain Vimont
2683fa20ed Add debug log for shortcuts
Add a debug log for every succeeded shortcut action.
2018-02-01 17:11:40 +01:00
Romain Vimont
274e1ac9ec Fix rotation bug in fullscreen mode on X11
On rotation, scrcpy resize the window to match the new rotation.
However, in fullscreen mode, setting the window size does not change the
windowed size on X11, so the behavior is incorrect.

To avoid the problem, apply the resize only after fullscreen is
disabled.
2018-02-01 17:11:40 +01:00
Romain Vimont
ee93f3f23a Rename maximum_size to max_size
The long option is --max-size, so for consistency, adapt the code
accordingly.
2018-02-01 17:11:40 +01:00
Romain Vimont
60b2f2ca64 Indent switch blocks content
For readability, indent "case" in switch blocks.

Replace:

    switch (x) {
    case 1:
        // ...
    case 2:
        // ...
    case 3: { // a local scope block
        int i = 42;
        // ...
    }
    }

By:

    switch (x) {
        case 1:
            // ...
        case 2:
            // ...
        case 3: { // a local scope block
            int i = 42;
            // ...
        }
    }
2018-02-01 11:44:20 +01:00
Romain Vimont
89f6a3cfe7 Handle resized video stream
Accept a parameter to limit the video size.

For instance, with "-m 960", the great side of the video will be scaled
down to 960 (if necessary), while the other side will be scaled down so
that the aspect ratio is preserved. Both dimensions must be a multiple
of 8, so black bands might be added, and the mouse positions must be
computed accordingly.
2018-01-29 15:40:33 +01:00
Romain Vimont
879941355d Swap position/point names
A point is a 2D vector. A position represent a point relative to the
screen size.
2018-01-29 14:52:22 +01:00
Romain Vimont
2aa15db210 Add shortcut to resize to ratio 1:1
Make Ctrl+g resize the window to the size of the video (pixel-perfect).
2018-01-24 09:56:42 +01:00
Romain Vimont
ab2c3de9f5 Capture all Ctrl events
For consistency, capture all Ctrl events (not only those we react to).
2018-01-24 09:53:09 +01:00
Romain Vimont
2c35220618 Rename screen -> scrcpy -> main
Rename scrcpy.c to main.c (this file handles the command line parsing),
and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
2018-01-23 16:44:59 +01:00
Romain Vimont
de106747b6 Improve main() error handling
Parse the command-line arguments first, and do not ignore avformat
network init failure. At the end, deinit the avformat network.
2017-12-18 11:29:34 +01:00
Romain Vimont
37d88b8a6a Use SDL_bool return type instead of int
Many functions returned an int to indicate their success. For clarity,
use SDL_bool instead.
2017-12-15 11:27:54 +01:00
Romain Vimont
54d9148a36 Initial commit
Start a new clean history from here.
2017-12-12 15:25:15 +01:00