scrcpy/app/src/screen.h
Romain Vimont ab912c23e7 Define feature test macros in common.h
This enables necessary functions once for all.

As a consequence, define common.h before any other header.
2021-01-17 14:08:48 +01:00

144 lines
3.9 KiB
C

#ifndef SCREEN_H
#define SCREEN_H
#include "common.h"
#include <stdbool.h>
#include <SDL2/SDL.h>
#include <libavformat/avformat.h>
#include "coords.h"
#include "opengl.h"
struct video_buffer;
struct screen {
SDL_Window *window;
SDL_Renderer *renderer;
SDL_Texture *texture;
bool use_opengl;
struct sc_opengl gl;
struct size frame_size;
struct 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 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 no_window;
bool mipmaps;
};
#define SCREEN_INITIALIZER { \
.window = NULL, \
.renderer = NULL, \
.texture = NULL, \
.use_opengl = false, \
.gl = {0}, \
.frame_size = { \
.width = 0, \
.height = 0, \
}, \
.content_size = { \
.width = 0, \
.height = 0, \
}, \
.resize_pending = false, \
.windowed_content_size = { \
.width = 0, \
.height = 0, \
}, \
.rotation = 0, \
.rect = { \
.x = 0, \
.y = 0, \
.w = 0, \
.h = 0, \
}, \
.has_frame = false, \
.fullscreen = false, \
.maximized = false, \
.no_window = false, \
.mipmaps = false, \
}
// initialize default values
void
screen_init(struct screen *screen);
// initialize screen, create window, renderer and texture (window is hidden)
// window_x and window_y accept SC_WINDOW_POSITION_UNDEFINED
bool
screen_init_rendering(struct screen *screen, const char *window_title,
struct size frame_size, bool always_on_top,
int16_t window_x, int16_t window_y, uint16_t window_width,
uint16_t window_height, bool window_borderless,
uint8_t rotation, bool mipmaps);
// show the window
void
screen_show_window(struct screen *screen);
// destroy window, renderer and texture (if any)
void
screen_destroy(struct screen *screen);
// resize if necessary and write the rendered frame into the texture
bool
screen_update_frame(struct screen *screen, struct video_buffer *vb);
// render the texture to the renderer
//
// Set the update_content_rect flag if the window or content size may have
// changed, so that the content rectangle is recomputed
void
screen_render(struct screen *screen, bool update_content_rect);
// switch the fullscreen mode
void
screen_switch_fullscreen(struct screen *screen);
// resize window to optimal size (remove black borders)
void
screen_resize_to_fit(struct screen *screen);
// resize window to 1:1 (pixel-perfect)
void
screen_resize_to_pixel_perfect(struct screen *screen);
// set the display rotation (0, 1, 2 or 3, x90 degrees counterclockwise)
void
screen_set_rotation(struct screen *screen, unsigned rotation);
// react to window events
void
screen_handle_window_event(struct screen *screen, const SDL_WindowEvent *event);
// convert point from window coordinates to frame coordinates
// x and y are expressed in pixels
struct point
screen_convert_window_to_frame_coords(struct screen *screen,
int32_t x, int32_t y);
// convert point from drawable coordinates to frame coordinates
// x and y are expressed in pixels
struct point
screen_convert_drawable_to_frame_coords(struct 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
screen_hidpi_scale_coords(struct screen *screen, int32_t *x, int32_t *y);
#endif