diff options
Diffstat (limited to 'sdl.c')
| -rw-r--r-- | sdl.c | 95 |
1 files changed, 92 insertions, 3 deletions
@@ -44,6 +44,9 @@ static int width, height; static SDL_Cursor *sdl_cursor_normal; static SDL_Cursor *sdl_cursor_hidden; static int absolute_enabled = 0; +static int guest_cursor = 0; +static int guest_x, guest_y; +static SDL_Cursor *guest_sprite = 0; static void sdl_update(DisplayState *ds, int x, int y, int w, int h) { @@ -245,13 +248,21 @@ static void sdl_show_cursor(void) { if (!kbd_mouse_is_absolute()) { SDL_ShowCursor(1); - SDL_SetCursor(sdl_cursor_normal); + if (guest_cursor && + (gui_grab || kbd_mouse_is_absolute() || absolute_enabled)) + SDL_SetCursor(guest_sprite); + else + SDL_SetCursor(sdl_cursor_normal); } } static void sdl_grab_start(void) { - sdl_hide_cursor(); + if (guest_cursor) { + SDL_SetCursor(guest_sprite); + SDL_WarpMouse(guest_x, guest_y); + } else + sdl_hide_cursor(); SDL_WM_GrabInput(SDL_GRAB_ON); /* dummy read to avoid moving the mouse */ SDL_GetRelativeMouseState(NULL, NULL); @@ -262,8 +273,8 @@ static void sdl_grab_start(void) static void sdl_grab_end(void) { SDL_WM_GrabInput(SDL_GRAB_OFF); - sdl_show_cursor(); gui_grab = 0; + sdl_show_cursor(); sdl_update_caption(); } @@ -294,6 +305,12 @@ static void sdl_send_mouse_event(int dz) } else if (absolute_enabled) { sdl_show_cursor(); absolute_enabled = 0; + } else if (guest_cursor) { + SDL_GetMouseState(&dx, &dy); + dx -= guest_x; + dy -= guest_y; + guest_x += dx; + guest_y += dy; } kbd_mouse_event(dx, dy, dz, buttons); @@ -472,8 +489,77 @@ static void sdl_refresh(DisplayState *ds) } } +static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c) +{ + SDL_Rect dst = { x, y, w, h }; + SDL_FillRect(screen, &dst, c); +} + +static void sdl_mouse_warp(int x, int y, int on) +{ + if (on) { + if (!guest_cursor) + sdl_show_cursor(); + if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) { + SDL_SetCursor(guest_sprite); + SDL_WarpMouse(x, y); + } + } else if (gui_grab) + sdl_hide_cursor(); + guest_cursor = on; + guest_x = x, guest_y = y; +} + +static void sdl_mouse_define(int width, int height, int bpp, + int hot_x, int hot_y, + uint8_t *image, uint8_t *mask) +{ + uint8_t sprite[256], *line; + int x, y, dst, bypl, src = 0; + if (guest_sprite) + SDL_FreeCursor(guest_sprite); + + memset(sprite, 0, 256); + bypl = ((width * bpp + 31) >> 5) << 2; + for (y = 0, dst = 0; y < height; y ++, image += bypl) { + line = image; + for (x = 0; x < width; x ++, dst ++) { + switch (bpp) { + case 24: + src = *(line ++); src |= *(line ++); src |= *(line ++); + break; + case 16: + case 15: + src = *(line ++); src |= *(line ++); + break; + case 8: + src = *(line ++); + break; + case 4: + src = 0xf & (line[x >> 1] >> ((x & 1)) << 2); + break; + case 2: + src = 3 & (line[x >> 2] >> ((x & 3)) << 1); + break; + case 1: + src = 1 & (line[x >> 3] >> (x & 7)); + break; + } + if (!src) + sprite[dst >> 3] |= (1 << (~dst & 7)) & mask[dst >> 3]; + } + } + guest_sprite = SDL_CreateCursor(sprite, mask, width, height, hot_x, hot_y); + + if (guest_cursor && + (gui_grab || kbd_mouse_is_absolute() || absolute_enabled)) + SDL_SetCursor(guest_sprite); +} + static void sdl_cleanup(void) { + if (guest_sprite) + SDL_FreeCursor(guest_sprite); SDL_Quit(); } @@ -510,6 +596,9 @@ void sdl_display_init(DisplayState *ds, int full_screen, int no_frame) ds->dpy_update = sdl_update; ds->dpy_resize = sdl_resize; ds->dpy_refresh = sdl_refresh; + ds->dpy_fill = sdl_fill; + ds->mouse_set = sdl_mouse_warp; + ds->cursor_define = sdl_mouse_define; sdl_resize(ds, 640, 400); sdl_update_caption(); |