From: Ian Jackson Date: Tue, 6 May 2008 10:56:54 +0000 (+0100) Subject: Copy across sdl* from xen-unstable 17318:b5fea3aeb04b; not yet edited to merge X-Git-Tag: xen-3.3.0-rc1~216 X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=872830b1b9dcf435cdcf96363ae2f1ebb07f330e;p=qemu-xen-4.6-testing.git Copy across sdl* from xen-unstable 17318:b5fea3aeb04b; not yet edited to merge --- diff --git a/sdl.c b/sdl.c index 431e52711..f3aa5e367 100644 --- a/sdl.c +++ b/sdl.c @@ -1,8 +1,8 @@ /* * QEMU SDL display driver - * + * * Copyright (c) 2003 Fabrice Bellard - * + * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights @@ -21,9 +21,7 @@ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ -#include "qemu-common.h" -#include "console.h" -#include "sysemu.h" +#include "vl.h" #include @@ -31,12 +29,16 @@ #include #endif +#ifdef CONFIG_OPENGL +#include +#endif + static SDL_Surface *screen; +static SDL_Surface *shared = NULL; static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ static int last_vm_running; static int gui_saved_grab; static int gui_fullscreen; -static int gui_noframe; static int gui_key_modifier_pressed; static int gui_keysym; static int gui_fullscreen_initial_grab; @@ -46,56 +48,241 @@ 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 int opengl_enabled; + +#ifdef CONFIG_OPENGL +static GLint tex_format; +static GLint tex_type; +static GLuint texture_ref = 0; +static GLint gl_format; + +static void opengl_setdata(DisplayState *ds, void *pixels) +{ + glEnable(GL_TEXTURE_RECTANGLE_ARB); + glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); + glClearColor(0, 0, 0, 0); + glDisable(GL_BLEND); + glDisable(GL_LIGHTING); + glDisable(GL_DEPTH_TEST); + glDepthMask(GL_FALSE); + glDisable(GL_CULL_FACE); + glViewport( 0, 0, screen->w, screen->h); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(0, screen->w, screen->h, 0, -1,1); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glClear(GL_COLOR_BUFFER_BIT); + ds->data = pixels; + + if (texture_ref) { + glDeleteTextures(1, &texture_ref); + texture_ref = 0; + } + + glGenTextures(1, &texture_ref); + glBindTexture(GL_TEXTURE_RECTANGLE_ARB, texture_ref); + glPixelStorei(GL_UNPACK_LSB_FIRST, 1); + switch (ds->depth) { + case 8: + tex_format = GL_RGB; + tex_type = GL_UNSIGNED_BYTE_3_3_2; + glPixelStorei (GL_UNPACK_ALIGNMENT, 1); + break; + case 16: + tex_format = GL_RGB; + tex_type = GL_UNSIGNED_SHORT_5_6_5; + glPixelStorei (GL_UNPACK_ALIGNMENT, 2); + break; + case 24: + tex_format = GL_BGR; + tex_type = GL_UNSIGNED_BYTE; + glPixelStorei (GL_UNPACK_ALIGNMENT, 1); + break; + case 32: + if (!ds->bgr) { + tex_format = GL_BGRA; + tex_type = GL_UNSIGNED_BYTE; + } else { + tex_format = GL_RGBA; + tex_type = GL_UNSIGNED_BYTE; + } + glPixelStorei (GL_UNPACK_ALIGNMENT, 4); + break; + } + glPixelStorei(GL_UNPACK_ROW_LENGTH, (ds->linesize * 8) / ds->depth); + glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, gl_format, ds->width, ds->height, 0, tex_format, tex_type, pixels); + glTexParameterf(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_PRIORITY, 1.0); + glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0); +} + +static void opengl_update(DisplayState *ds, int x, int y, int w, int h) +{ + int bpp = ds->depth / 8; + GLvoid *pixels = ds->data + y * ds->linesize + x * bpp; + glBindTexture(GL_TEXTURE_RECTANGLE_ARB, texture_ref); + glPixelStorei(GL_UNPACK_ROW_LENGTH, ds->linesize / bpp); + glTexSubImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, x, y, w, h, tex_format, tex_type, pixels); + glBegin(GL_QUADS); + glTexCoord2d(0, 0); + glVertex2d(0, 0); + glTexCoord2d(ds->width, 0); + glVertex2d(screen->w, 0); + glTexCoord2d(ds->width, ds->height); + glVertex2d(screen->w, screen->h); + glTexCoord2d(0, ds->height); + glVertex2d(0, screen->h); + glEnd(); + glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0); + SDL_GL_SwapBuffers(); +} +#endif static void sdl_update(DisplayState *ds, int x, int y, int w, int h) { // printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h); - SDL_UpdateRect(screen, x, y, w, h); + if (shared) { + SDL_Rect rec; + rec.x = x; + rec.y = y; + rec.w = w; + rec.h = h; + SDL_BlitSurface(shared, &rec, screen, &rec); + } + SDL_Flip(screen); } -static void sdl_resize(DisplayState *ds, int w, int h) +static void sdl_setdata(DisplayState *ds, void *pixels) +{ + uint32_t rmask, gmask, bmask, amask = 0; + switch (ds->depth) { + case 8: + rmask = 0x000000E0; + gmask = 0x0000001C; + bmask = 0x00000003; + break; + case 16: + rmask = 0x0000F800; + gmask = 0x000007E0; + bmask = 0x0000001F; + break; + case 24: + rmask = 0x00FF0000; + gmask = 0x0000FF00; + bmask = 0x000000FF; + break; + case 32: + rmask = 0x00FF0000; + gmask = 0x0000FF00; + bmask = 0x000000FF; + break; + default: + return; + } + shared = SDL_CreateRGBSurfaceFrom(pixels, width, height, ds->depth, ds->linesize, rmask , gmask, bmask, amask); + ds->data = pixels; +} + +static void sdl_resize(DisplayState *ds, int w, int h, int linesize) { int flags; // printf("resizing to %d %d\n", w, h); - flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL; - if (gui_fullscreen) - flags |= SDL_FULLSCREEN; - if (gui_noframe) - flags |= SDL_NOFRAME; +#ifdef CONFIG_OPENGL + if (ds->shared_buf && opengl_enabled) + flags = SDL_OPENGL|SDL_RESIZABLE; + else +#endif + flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL|SDL_DOUBLEBUF|SDL_HWPALETTE; + if (gui_fullscreen) { + flags |= SDL_FULLSCREEN; + flags &= ~SDL_RESIZABLE; + } + width = w; height = h; again: screen = SDL_SetVideoMode(w, h, 0, flags); + if (!screen) { - fprintf(stderr, "Could not open SDL display\n"); + fprintf(stderr, "Could not open SDL display: %s\n", SDL_GetError()); + if (opengl_enabled) { + /* Fallback to SDL */ + opengl_enabled = 0; + ds->dpy_update = sdl_update; + ds->dpy_setdata = sdl_setdata; + sdl_resize(ds, w, h, linesize); + return; + } exit(1); } - if (!screen->pixels && (flags & SDL_HWSURFACE) && (flags & SDL_FULLSCREEN)) { - flags &= ~SDL_HWSURFACE; - goto again; - } - if (!screen->pixels) { - fprintf(stderr, "Could not open SDL display\n"); - exit(1); - } - ds->data = screen->pixels; - ds->linesize = screen->pitch; - ds->depth = screen->format->BitsPerPixel; - if (screen->format->Bshift > screen->format->Rshift) { - ds->bgr = 1; - } else { - ds->bgr = 0; + if (!opengl_enabled) { + if (!screen->pixels && (flags & SDL_HWSURFACE) && (flags & SDL_FULLSCREEN)) { + flags &= ~SDL_HWSURFACE; + goto again; + } + + if (!screen->pixels) { + fprintf(stderr, "Could not open SDL display: %s\n", SDL_GetError()); + exit(1); + } } + ds->width = w; ds->height = h; + if (!ds->shared_buf) { + ds->depth = screen->format->BitsPerPixel; + if (ds->depth == 32 && screen->format->Rshift == 0) { + ds->bgr = 1; + } else { + ds->bgr = 0; + } + ds->data = screen->pixels; + ds->linesize = screen->pitch; + } else { + ds->linesize = linesize; +#ifdef CONFIG_OPENGL + switch(screen->format->BitsPerPixel) { + case 8: + gl_format = GL_RGB; + break; + case 16: + gl_format = GL_RGB; + break; + case 24: + gl_format = GL_RGB; + break; + case 32: + if (!screen->format->Rshift) + gl_format = GL_BGRA; + else + gl_format = GL_RGBA; + break; + }; +#endif + } +} + +static void sdl_colourdepth(DisplayState *ds, int depth) +{ + if (!depth || !ds->depth) return; + ds->shared_buf = 1; + ds->depth = depth; + ds->linesize = width * depth / 8; +#ifdef CONFIG_OPENGL + if (opengl_enabled) { + ds->dpy_update = opengl_update; + ds->dpy_setdata = opengl_setdata; + } +#endif } /* generic keyboard conversion */ @@ -221,30 +408,18 @@ static void sdl_process_key(SDL_KeyboardEvent *ev) static void sdl_update_caption(void) { char buf[1024]; - const char *status = ""; - - if (!vm_running) - status = " [Stopped]"; - else if (gui_grab) { - if (!alt_grab) - status = " - Press Ctrl-Alt to exit grab"; - else - status = " - Press Ctrl-Alt-Shift to exit grab"; + strcpy(buf, domain_name); + if (!vm_running) { + strcat(buf, " [Stopped]"); } - - if (qemu_name) - snprintf(buf, sizeof(buf), "QEMU (%s)%s", qemu_name, status); - else - snprintf(buf, sizeof(buf), "QEMU%s", status); - - SDL_WM_SetCaption(buf, "QEMU"); + if (gui_grab) { + strcat(buf, " - Press Ctrl-Alt to exit grab"); + } + SDL_WM_SetCaption(buf, domain_name); } static void sdl_hide_cursor(void) { - if (!cursor_hide) - return; - if (kbd_mouse_is_absolute()) { SDL_ShowCursor(1); SDL_SetCursor(sdl_cursor_hidden); @@ -255,27 +430,18 @@ static void sdl_hide_cursor(void) static void sdl_show_cursor(void) { - if (!cursor_hide) - return; - if (!kbd_mouse_is_absolute()) { SDL_ShowCursor(1); - if (guest_cursor && - (gui_grab || kbd_mouse_is_absolute() || absolute_enabled)) - SDL_SetCursor(guest_sprite); - else - SDL_SetCursor(sdl_cursor_normal); + SDL_SetCursor(sdl_cursor_normal); } } static void sdl_grab_start(void) { - if (guest_cursor) { - SDL_SetCursor(guest_sprite); - SDL_WarpMouse(guest_x, guest_y); - } else - sdl_hide_cursor(); + sdl_hide_cursor(); SDL_WM_GrabInput(SDL_GRAB_ON); + /* dummy read to avoid moving the mouse */ + SDL_GetRelativeMouseState(NULL, NULL); gui_grab = 1; sdl_update_caption(); } @@ -283,15 +449,14 @@ static void sdl_grab_start(void) static void sdl_grab_end(void) { SDL_WM_GrabInput(SDL_GRAB_OFF); - gui_grab = 0; sdl_show_cursor(); + gui_grab = 0; sdl_update_caption(); } -static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state) +static void sdl_send_mouse_event(int dx, int dy, int dz, int state) { - int buttons; - buttons = 0; + int buttons = 0; if (state & SDL_BUTTON(SDL_BUTTON_LEFT)) buttons |= MOUSE_EVENT_LBUTTON; if (state & SDL_BUTTON(SDL_BUTTON_RIGHT)) @@ -308,18 +473,12 @@ static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state absolute_enabled = 1; } - dx = x * 0x7FFF / (width - 1); - dy = y * 0x7FFF / (height - 1); + SDL_GetMouseState(&dx, &dy); + dx = dx * 0x7FFF / (screen->w - 1); + dy = dy * 0x7FFF / (screen->h - 1); } else if (absolute_enabled) { sdl_show_cursor(); absolute_enabled = 0; - } else if (guest_cursor) { - x -= guest_x; - y -= guest_y; - guest_x += x; - guest_y += y; - dx = x; - dy = y; } kbd_mouse_event(dx, dy, dz, buttons); @@ -328,7 +487,8 @@ static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state static void toggle_full_screen(DisplayState *ds) { gui_fullscreen = !gui_fullscreen; - sdl_resize(ds, screen->w, screen->h); + sdl_resize(ds, ds->width, ds->height, ds->linesize); + ds->dpy_setdata(ds, ds->data); if (gui_fullscreen) { gui_saved_grab = gui_grab; sdl_grab_start(); @@ -344,8 +504,7 @@ static void sdl_refresh(DisplayState *ds) { SDL_Event ev1, *ev = &ev1; int mod_state; - int buttonstate = SDL_GetMouseState(NULL, NULL); - + if (last_vm_running != vm_running) { last_vm_running = vm_running; sdl_update_caption(); @@ -356,18 +515,13 @@ static void sdl_refresh(DisplayState *ds) while (SDL_PollEvent(ev)) { switch (ev->type) { case SDL_VIDEOEXPOSE: - sdl_update(ds, 0, 0, screen->w, screen->h); + ds->dpy_update(ds, 0, 0, ds->width, ds->height); break; case SDL_KEYDOWN: case SDL_KEYUP: if (ev->type == SDL_KEYDOWN) { - if (!alt_grab) { - mod_state = (SDL_GetModState() & gui_grab_code) == - gui_grab_code; - } else { - mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) == - (gui_grab_code | KMOD_LSHIFT); - } + mod_state = (SDL_GetModState() & gui_grab_code) == + gui_grab_code; gui_key_modifier_pressed = mod_state; if (gui_key_modifier_pressed) { int keycode; @@ -377,7 +531,7 @@ static void sdl_refresh(DisplayState *ds) toggle_full_screen(ds); gui_keysym = 1; break; - case 0x02 ... 0x0a: /* '1' to '9' keys */ + case 0x02 ... 0x0a: /* '1' to '9' keys */ /* Reset the modifiers sent to the current console */ reset_keys(); console_select(keycode - 0x02); @@ -416,8 +570,7 @@ static void sdl_refresh(DisplayState *ds) case SDLK_END: keysym = QEMU_KEY_END; break; case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break; case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break; - case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break; - case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break; + case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break; case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break; default: break; } } @@ -428,12 +581,7 @@ static void sdl_refresh(DisplayState *ds) } } } else if (ev->type == SDL_KEYUP) { - if (!alt_grab) { - mod_state = (ev->key.keysym.mod & gui_grab_code); - } else { - mod_state = (ev->key.keysym.mod & - (gui_grab_code | KMOD_LSHIFT)); - } + mod_state = (ev->key.keysym.mod & gui_grab_code); if (!mod_state) { if (gui_key_modifier_pressed) { gui_key_modifier_pressed = 0; @@ -460,48 +608,52 @@ static void sdl_refresh(DisplayState *ds) } } } - if (is_graphic_console() && !gui_keysym) + if (is_graphic_console() && !gui_keysym) sdl_process_key(&ev->key); break; case SDL_QUIT: if (!no_quit) { - qemu_system_shutdown_request(); - vm_start(); /* In case we're paused */ + qemu_system_shutdown_request(); } break; case SDL_MOUSEMOTION: if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) { - sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0, - ev->motion.x, ev->motion.y, ev->motion.state); + int dx, dy, state; + state = SDL_GetRelativeMouseState(&dx, &dy); + sdl_send_mouse_event(dx, dy, 0, state); } break; - case SDL_MOUSEBUTTONDOWN: case SDL_MOUSEBUTTONUP: + if (gui_grab || kbd_mouse_is_absolute()) { + int dx, dy, state; + state = SDL_GetRelativeMouseState(&dx, &dy); + sdl_send_mouse_event(dx, dy, 0, state); + } + break; + case SDL_MOUSEBUTTONDOWN: { SDL_MouseButtonEvent *bev = &ev->button; if (!gui_grab && !kbd_mouse_is_absolute()) { if (ev->type == SDL_MOUSEBUTTONDOWN && - (bev->button == SDL_BUTTON_LEFT)) { + (bev->state & SDL_BUTTON_LMASK)) { /* start grabbing all events */ sdl_grab_start(); } } else { - int dz; + int dx, dy, dz, state; dz = 0; - if (ev->type == SDL_MOUSEBUTTONDOWN) { - buttonstate |= SDL_BUTTON(bev->button); - } else { - buttonstate &= ~SDL_BUTTON(bev->button); - } + state = SDL_GetRelativeMouseState(&dx, &dy); #ifdef SDL_BUTTON_WHEELUP - if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) { + if (bev->button == SDL_BUTTON_WHEELUP) { dz = -1; - } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) { + } else if (bev->button == SDL_BUTTON_WHEELDOWN) { dz = 1; + } else { + state = bev->button | state; } -#endif - sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate); +#endif + sdl_send_mouse_event(dx, dy, dz, state); } } break; @@ -510,100 +662,47 @@ static void sdl_refresh(DisplayState *ds) !ev->active.gain && !gui_fullscreen_initial_grab) { sdl_grab_end(); } - if (ev->active.state & SDL_APPACTIVE) { - if (ev->active.gain) { - /* Back to default interval */ - ds->gui_timer_interval = 0; - } else { - /* Sleeping interval */ - ds->gui_timer_interval = 500; - } + if (ev->active.state & SDL_APPACTIVE) { + if (ev->active.gain) { + /* Back to default interval */ + ds->gui_timer_interval = 0; + } else { + /* Sleeping interval */ + ds->gui_timer_interval = 500; + } + } + break; +#ifdef CONFIG_OPENGL + case SDL_VIDEORESIZE: + { + if (ds->shared_buf && opengl_enabled) { + SDL_ResizeEvent *rev = &ev->resize; + screen = SDL_SetVideoMode(rev->w, rev->h, 0, SDL_OPENGL|SDL_RESIZABLE); + opengl_setdata(ds, ds->data); + opengl_update(ds, 0, 0, ds->width, ds->height); } break; + } +#endif default: break; } } } -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) +static void sdl_cleanup(void) { - if (guest_sprite) - SDL_FreeCursor(guest_sprite); +#ifdef CONFIG_OPENGL + if (texture_ref) glDeleteTextures(1, &texture_ref); +#endif SDL_Quit(); } -void sdl_display_init(DisplayState *ds, int full_screen, int no_frame) +void sdl_display_init(DisplayState *ds, int full_screen, int opengl) { int flags; uint8_t data = 0; + opengl_enabled = opengl; #if defined(__APPLE__) /* always use generic keymaps */ @@ -616,9 +715,6 @@ void sdl_display_init(DisplayState *ds, int full_screen, int no_frame) exit(1); } - if (no_frame) - gui_noframe = 1; - flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; if (SDL_Init (flags)) { fprintf(stderr, "Could not initialize SDL - exiting\n"); @@ -633,11 +729,10 @@ 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; + ds->dpy_colourdepth = sdl_colourdepth; + ds->dpy_setdata = sdl_setdata; - sdl_resize(ds, 640, 400); + sdl_resize(ds, 640, 400, 640 * 4); sdl_update_caption(); SDL_EnableKeyRepeat(250, 50); SDL_EnableUNICODE(1);