qemu/include/ui/sdl2.h

#ifndef SDL2_H
#define SDL2_H

/* Avoid compiler warning because macro is redefined in SDL_syswm.h. */
#undef WIN32_LEAN_AND_MEAN

#include <SDL.h>

/* with Alpine / muslc SDL headers pull in directfb headers
 * which in turn trigger warning about redundant decls for
 * direct_waitqueue_deinit.
 */
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wredundant-decls"

#include <SDL_syswm.h>

#pragma GCC diagnostic pop

#ifdef CONFIG_SDL_IMAGE
# include <SDL_image.h>
#endif

#include "ui/kbd-state.h"
#ifdef CONFIG_OPENGL
# include "ui/egl-helpers.h"
#endif

struct sdl2_console {
    DisplayGLCtx dgc;
    DisplayChangeListener dcl;
    DisplaySurface *surface;
    DisplayOptions *opts;
    SDL_Texture *texture;
    SDL_Window *real_window;
    SDL_Renderer *real_renderer;
    int idx;
    int last_vm_running; /* per console for caption reasons */
    int x, y, w, h;
    int hidden;
    int opengl;
    int updates;
    int idle_counter;
    int ignore_hotkeys;
    bool gui_keysym;
    SDL_GLContext winctx;
    QKbdState *kbd;
#ifdef CONFIG_OPENGL
    QemuGLShader *gls;
    egl_fb guest_fb;
    egl_fb win_fb;
    bool y0_top;
    bool scanout_mode;
#endif
};

void sdl2_window_create(struct sdl2_console *scon);
void sdl2_window_destroy(struct sdl2_console *scon);
void sdl2_window_resize(struct sdl2_console *scon);
void sdl2_poll_events(struct sdl2_console *scon);

void sdl2_process_key(struct sdl2_console *scon,
                      SDL_KeyboardEvent *ev);
void sdl2_release_modifiers(struct sdl2_console *scon);

void sdl2_2d_update(DisplayChangeListener *dcl,
                    int x, int y, int w, int h);
void sdl2_2d_switch(DisplayChangeListener *dcl,
                    DisplaySurface *new_surface);
void sdl2_2d_refresh(DisplayChangeListener *dcl);
void sdl2_2d_redraw(struct sdl2_console *scon);
bool sdl2_2d_check_format(DisplayChangeListener *dcl,
                          pixman_format_code_t format);

void sdl2_gl_update(DisplayChangeListener *dcl,
                    int x, int y, int w, int h);
void sdl2_gl_switch(DisplayChangeListener *dcl,
                    DisplaySurface *new_surface);
void sdl2_gl_refresh(DisplayChangeListener *dcl);
void sdl2_gl_redraw(struct sdl2_console *scon);

QEMUGLContext sdl2_gl_create_context(DisplayGLCtx *dgc,
                                     QEMUGLParams *params);
void sdl2_gl_destroy_context(DisplayGLCtx *dgc, QEMUGLContext ctx);
int sdl2_gl_make_context_current(DisplayGLCtx *dgc,
                                 QEMUGLContext ctx);

void sdl2_gl_scanout_disable(DisplayChangeListener *dcl);
void sdl2_gl_scanout_texture(DisplayChangeListener *dcl,
                             uint32_t backing_id,
                             DisplayGLTextureBorrower backing_borrow,
                             uint32_t x, uint32_t y,
                             uint32_t w, uint32_t h);
void sdl2_gl_scanout_flush(DisplayChangeListener *dcl,
                           uint32_t x, uint32_t y, uint32_t w, uint32_t h);

#endif /* SDL2_H */