Commit graph

13 commits

Author SHA1 Message Date
Romain Vimont
6baed8a06f Do not init SDL video subsystem if no display
The SDL video subsystem is not necessary if we don't display the video.

Move the sdl_init_and_configure() function from screen.c to scrcpy.c,
because it is not only related to the screen display.
2019-03-03 01:41:35 +01:00
Romain Vimont
dfed1b250e Replace SDL types by C99 standard types
Scrcpy is a C11 project. Use the C99 standard types instead of the
SDL-specific types:

    SDL_bool -> bool
    SintXX   -> intXX_t
    UintXX   -> uintXX_t
2019-03-02 23:55:23 +01:00
Romain Vimont
aeda583a2c Update code style
Limit source code to 80 chars, and declare functions return type and
modifiers on a separate line.

This allows to avoid very long lines, and all function names are
aligned.

(We do this on VLC, and I like it.)
2019-03-02 20:28:46 +01:00
CapsLock
421a1141e2 Add a new option: -n/--no-window
This option will allow scrcpy to record the stream without display.

Signed-off-by: Romain Vimont <rom@rom1v.com>
2019-03-02 18:45:56 +01:00
Romain Vimont
fff87095d9 Rename "frames" to "video_buffer"
It better describes the purpose of the structure.
2019-03-02 15:24:33 +01:00
Yu-Chen Lin
eca82e09c3 app: add always_on_top
It is very convenient when I play mobile game and watch video at the
same time.

Tested on Linux mint Cinnamon as well as Windows 10.

Signed-off-by: Yu-Chen Lin <npes87184@gmail.com>
2019-01-27 20:54:24 +08:00
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
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
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
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
d972a88c1a Optimize includes
Only include SDL_stdinc.h for SDL_bool, not the whole SDL.h.
2017-12-18 11:07:42 +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