scrcpy/app/src/screen.h
Romain Vimont 238ab872ba Pass video size as codec metadata
On initial connection, scrcpy sent some device metadata:
 - the device name (to be used as window title)
 - the initial video size (before any frame or even SPS/PPS)

But it is better to provide the initial video size as part as the video
stream, so that it can be demuxed and exposed via AVCodecContext to
sinks.

This avoids to pass an explicit "initial frame size" for the screen, the
recorder and the v4l2 sink.
2023-03-11 15:57:25 +01:00

161 lines
4.4 KiB
C

#ifndef SCREEN_H
#define SCREEN_H
#include "common.h"
#include <stdbool.h>
#include <SDL2/SDL.h>
#include <libavformat/avformat.h>
#include "controller.h"
#include "coords.h"
#include "fps_counter.h"
#include "frame_buffer.h"
#include "input_manager.h"
#include "opengl.h"
#include "trait/key_processor.h"
#include "trait/frame_sink.h"
#include "trait/mouse_processor.h"
struct sc_screen {
struct sc_frame_sink frame_sink; // frame sink trait
#ifndef NDEBUG
bool open; // track the open/close state to assert correct behavior
#endif
struct sc_input_manager im;
struct sc_frame_buffer fb;
struct sc_fps_counter fps_counter;
// The initial requested window properties
struct {
int16_t x;
int16_t y;
uint16_t width;
uint16_t height;
bool fullscreen;
bool start_fps_counter;
} req;
SDL_Window *window;
SDL_Renderer *renderer;
SDL_Texture *texture;
struct sc_opengl gl;
struct sc_size frame_size;
struct sc_size content_size; // rotated frame_size
bool resize_pending; // resize requested while fullscreen or maximized
// The content size the last time the window was not maximized or
// fullscreen (meaningful only when resize_pending is true)
struct sc_size windowed_content_size;
// client rotation: 0, 1, 2 or 3 (x90 degrees counterclockwise)
unsigned rotation;
// rectangle of the content (excluding black borders)
struct SDL_Rect rect;
bool has_frame;
bool fullscreen;
bool maximized;
bool mipmaps;
// To enable/disable mouse capture, a mouse capture key (LALT, LGUI or
// RGUI) must be pressed. This variable tracks the pressed capture key.
SDL_Keycode mouse_capture_key_pressed;
AVFrame *frame;
};
struct sc_screen_params {
struct sc_controller *controller;
struct sc_file_pusher *fp;
struct sc_key_processor *kp;
struct sc_mouse_processor *mp;
bool forward_all_clicks;
bool legacy_paste;
bool clipboard_autosync;
const struct sc_shortcut_mods *shortcut_mods;
const char *window_title;
bool always_on_top;
int16_t window_x; // accepts SC_WINDOW_POSITION_UNDEFINED
int16_t window_y; // accepts SC_WINDOW_POSITION_UNDEFINED
uint16_t window_width;
uint16_t window_height;
bool window_borderless;
uint8_t rotation;
bool mipmaps;
bool fullscreen;
bool start_fps_counter;
};
// initialize screen, create window, renderer and texture (window is hidden)
bool
sc_screen_init(struct sc_screen *screen, const struct sc_screen_params *params);
// request to interrupt any inner thread
// must be called before screen_join()
void
sc_screen_interrupt(struct sc_screen *screen);
// join any inner thread
void
sc_screen_join(struct sc_screen *screen);
// destroy window, renderer and texture (if any)
void
sc_screen_destroy(struct sc_screen *screen);
// hide the window
//
// It is used to hide the window immediately on closing without waiting for
// screen_destroy()
void
sc_screen_hide_window(struct sc_screen *screen);
// switch the fullscreen mode
void
sc_screen_switch_fullscreen(struct sc_screen *screen);
// resize window to optimal size (remove black borders)
void
sc_screen_resize_to_fit(struct sc_screen *screen);
// resize window to 1:1 (pixel-perfect)
void
sc_screen_resize_to_pixel_perfect(struct sc_screen *screen);
// set the display rotation (0, 1, 2 or 3, x90 degrees counterclockwise)
void
sc_screen_set_rotation(struct sc_screen *screen, unsigned rotation);
// react to SDL events
// If this function returns false, scrcpy must exit with an error.
bool
sc_screen_handle_event(struct sc_screen *screen, SDL_Event *event);
// convert point from window coordinates to frame coordinates
// x and y are expressed in pixels
struct sc_point
sc_screen_convert_window_to_frame_coords(struct sc_screen *screen,
int32_t x, int32_t y);
// convert point from drawable coordinates to frame coordinates
// x and y are expressed in pixels
struct sc_point
sc_screen_convert_drawable_to_frame_coords(struct sc_screen *screen,
int32_t x, int32_t y);
// Convert coordinates from window to drawable.
// Events are expressed in window coordinates, but content is expressed in
// drawable coordinates. They are the same if HiDPI scaling is 1, but differ
// otherwise.
void
sc_screen_hidpi_scale_coords(struct sc_screen *screen, int32_t *x, int32_t *y);
#endif