Merge remote-tracking branch 'remotes/kraxel/tags/pull-sdl-20141219-1' into staging

sdl2: fixes, cleanups and opengl preparation.

# gpg: Signature made Fri 19 Dec 2014 09:06:07 GMT using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-sdl-20141219-1:
  sdl2: Work around SDL2 SDL_ShowWindow() bug
  sdl2: Use correct sdl2_console for window events
  sdl2: move sdl2_2d_refresh to sdl2-2d.c
  sdl2: factor out sdl2_poll_events
  sdl2: add+use sdl2_2d_redraw function.
  sdl2: move sdl_switch to sdl2-2d.c
  sdl2: overhaul window size handling
  sdl2: move sdl_update to new sdl2-2d.c
  sdl2: turn on keyboard grabs
  sdl2: move keyboard input code to new sdl2-input.c
  sdl2: rename sdl2_state to sdl2_console, move to header file
  sdl: move version logic from source code to makefile

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

5 files changed, 326 insertions, 255 deletions

diff --git a/ui/Makefile.objs b/ui/Makefile.objs
index 801cba2675..13b5cfbe41 100644
--- a/ui/Makefile.objs
+++ b/ui/Makefile.objs
@@ -16,7 +16,12 @@ common-obj-$(CONFIG_CURSES) += curses.o
 common-obj-$(CONFIG_VNC) += $(vnc-obj-y)
 common-obj-$(CONFIG_GTK) += gtk.o x_keymap.o
 
-sdl.mo-objs := sdl.o sdl_zoom.o sdl2.o
+ifeq ($(CONFIG_SDLABI),1.2)
+sdl.mo-objs := sdl.o sdl_zoom.o
+endif
+ifeq ($(CONFIG_SDLABI),2.0)
+sdl.mo-objs := sdl2.o sdl2-input.o sdl2-2d.o
+endif
 sdl.mo-cflags := $(SDL_CFLAGS)
 
 gtk.o-cflags := $(GTK_CFLAGS) $(VTE_CFLAGS)
diff --git a/ui/sdl.c b/ui/sdl.c
index 94c1d9dc3a..3e9d81076b 100644
--- a/ui/sdl.c
+++ b/ui/sdl.c
@@ -26,8 +26,6 @@
 #undef WIN32_LEAN_AND_MEAN
 
 #include <SDL.h>
-
-#if SDL_MAJOR_VERSION == 1
 #include <SDL_syswm.h>
 
 #include "qemu-common.h"
@@ -958,4 +956,3 @@ void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
 
     atexit(sdl_cleanup);
 }
-#endif
diff --git a/ui/sdl2-2d.c b/ui/sdl2-2d.c
new file mode 100644
index 0000000000..9264817e76
--- /dev/null
+++ b/ui/sdl2-2d.c
@@ -0,0 +1,122 @@
+/*
+ * 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
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+/* Ported SDL 1.2 code to 2.0 by Dave Airlie. */
+
+/* Avoid compiler warning because macro is redefined in SDL_syswm.h. */
+#undef WIN32_LEAN_AND_MEAN
+
+#include <SDL.h>
+#include <SDL_syswm.h>
+
+#include "qemu-common.h"
+#include "ui/console.h"
+#include "ui/input.h"
+#include "ui/sdl2.h"
+#include "sysemu/sysemu.h"
+
+void sdl2_2d_update(DisplayChangeListener *dcl,
+                    int x, int y, int w, int h)
+{
+    struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
+    DisplaySurface *surf = qemu_console_surface(dcl->con);
+    SDL_Rect rect;
+
+    if (!surf) {
+        return;
+    }
+    if (!scon->texture) {
+        return;
+    }
+
+    rect.x = x;
+    rect.y = y;
+    rect.w = w;
+    rect.h = h;
+
+    SDL_UpdateTexture(scon->texture, NULL, surface_data(surf),
+                      surface_stride(surf));
+    SDL_RenderCopy(scon->real_renderer, scon->texture, &rect, &rect);
+    SDL_RenderPresent(scon->real_renderer);
+}
+
+void sdl2_2d_switch(DisplayChangeListener *dcl,
+                    DisplaySurface *new_surface)
+{
+    struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
+    DisplaySurface *old_surface = scon->surface;
+    int format = 0;
+
+    scon->surface = new_surface;
+
+    if (scon->texture) {
+        SDL_DestroyTexture(scon->texture);
+        scon->texture = NULL;
+    }
+
+    if (!new_surface) {
+        sdl2_window_destroy(scon);
+        return;
+    }
+
+    if (!scon->real_window) {
+        sdl2_window_create(scon);
+    } else if (old_surface &&
+               ((surface_width(old_surface)  != surface_width(new_surface)) ||
+                (surface_height(old_surface) != surface_height(new_surface)))) {
+        sdl2_window_resize(scon);
+    }
+
+    SDL_RenderSetLogicalSize(scon->real_renderer,
+                             surface_width(new_surface),
+                             surface_height(new_surface));
+
+    if (surface_bits_per_pixel(scon->surface) == 16) {
+        format = SDL_PIXELFORMAT_RGB565;
+    } else if (surface_bits_per_pixel(scon->surface) == 32) {
+        format = SDL_PIXELFORMAT_ARGB8888;
+    }
+    scon->texture = SDL_CreateTexture(scon->real_renderer, format,
+                                      SDL_TEXTUREACCESS_STREAMING,
+                                      surface_width(new_surface),
+                                      surface_height(new_surface));
+    sdl2_2d_redraw(scon);
+}
+
+void sdl2_2d_refresh(DisplayChangeListener *dcl)
+{
+    struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
+
+    graphic_hw_update(dcl->con);
+    sdl2_poll_events(scon);
+}
+
+void sdl2_2d_redraw(struct sdl2_console *scon)
+{
+    if (!scon->surface) {
+        return;
+    }
+    sdl2_2d_update(&scon->dcl, 0, 0,
+                   surface_width(scon->surface),
+                   surface_height(scon->surface));
+}
diff --git a/ui/sdl2-input.c b/ui/sdl2-input.c
new file mode 100644
index 0000000000..a1973fc2e0
--- /dev/null
+++ b/ui/sdl2-input.c
@@ -0,0 +1,106 @@
+/*
+ * 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
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+/* Ported SDL 1.2 code to 2.0 by Dave Airlie. */
+
+/* Avoid compiler warning because macro is redefined in SDL_syswm.h. */
+#undef WIN32_LEAN_AND_MEAN
+
+#include <SDL.h>
+#include <SDL_syswm.h>
+
+#include "qemu-common.h"
+#include "ui/console.h"
+#include "ui/input.h"
+#include "ui/sdl2.h"
+#include "sysemu/sysemu.h"
+
+#include "sdl2-keymap.h"
+
+static uint8_t modifiers_state[SDL_NUM_SCANCODES];
+
+void sdl2_reset_keys(struct sdl2_console *scon)
+{
+    QemuConsole *con = scon ? scon->dcl.con : NULL;
+    int i;
+
+    for (i = 0; i < SDL_NUM_SCANCODES; i++) {
+        if (modifiers_state[i]) {
+            int qcode = sdl2_scancode_to_qcode[i];
+            qemu_input_event_send_key_qcode(con, qcode, false);
+            modifiers_state[i] = 0;
+        }
+    }
+}
+
+void sdl2_process_key(struct sdl2_console *scon,
+                      SDL_KeyboardEvent *ev)
+{
+    int qcode = sdl2_scancode_to_qcode[ev->keysym.scancode];
+    QemuConsole *con = scon ? scon->dcl.con : NULL;
+
+    if (!qemu_console_is_graphic(con)) {
+        if (ev->type == SDL_KEYDOWN) {
+            switch (ev->keysym.scancode) {
+            case SDL_SCANCODE_RETURN:
+                kbd_put_keysym_console(con, '\n');
+                break;
+            case SDL_SCANCODE_BACKSPACE:
+                kbd_put_keysym_console(con, QEMU_KEY_BACKSPACE);
+                break;
+            default:
+                kbd_put_qcode_console(con, qcode);
+                break;
+            }
+        }
+        return;
+    }
+
+    switch (ev->keysym.scancode) {
+#if 0
+    case SDL_SCANCODE_NUMLOCKCLEAR:
+    case SDL_SCANCODE_CAPSLOCK:
+        /* SDL does not send the key up event, so we generate it */
+        qemu_input_event_send_key_qcode(con, qcode, true);
+        qemu_input_event_send_key_qcode(con, qcode, false);
+        return;
+#endif
+    case SDL_SCANCODE_LCTRL:
+    case SDL_SCANCODE_LSHIFT:
+    case SDL_SCANCODE_LALT:
+    case SDL_SCANCODE_LGUI:
+    case SDL_SCANCODE_RCTRL:
+    case SDL_SCANCODE_RSHIFT:
+    case SDL_SCANCODE_RALT:
+    case SDL_SCANCODE_RGUI:
+        if (ev->type == SDL_KEYUP) {
+            modifiers_state[ev->keysym.scancode] = 0;
+        } else {
+            modifiers_state[ev->keysym.scancode] = 1;
+        }
+        /* fall though */
+    default:
+        qemu_input_event_send_key_qcode(con, qcode,
+                                        ev->type == SDL_KEYDOWN);
+    }
+}
diff --git a/ui/sdl2.c b/ui/sdl2.c
index 1ad74baafc..1ae2781624 100644
--- a/ui/sdl2.c
+++ b/ui/sdl2.c
@@ -27,55 +27,37 @@
 #undef WIN32_LEAN_AND_MEAN
 
 #include <SDL.h>
-
-#if SDL_MAJOR_VERSION == 2
 #include <SDL_syswm.h>
 
 #include "qemu-common.h"
 #include "ui/console.h"
 #include "ui/input.h"
+#include "ui/sdl2.h"
 #include "sysemu/sysemu.h"
 
-#include "sdl2-keymap.h"
-
 static int sdl2_num_outputs;
-static struct sdl2_state {
-    DisplayChangeListener dcl;
-    DisplaySurface *surface;
-    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;
-    int hidden;
-} *sdl2_console;
+static struct sdl2_console *sdl2_console;
 
 static SDL_Surface *guest_sprite_surface;
 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
 
-static bool gui_saved_scaling;
-static int gui_saved_width;
-static int gui_saved_height;
 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_grab_code = KMOD_LALT | KMOD_LCTRL;
-static uint8_t modifiers_state[SDL_NUM_SCANCODES];
 static SDL_Cursor *sdl_cursor_normal;
 static SDL_Cursor *sdl_cursor_hidden;
 static int absolute_enabled;
 static int guest_cursor;
 static int guest_x, guest_y;
 static SDL_Cursor *guest_sprite;
-static int scaling_active;
 static Notifier mouse_mode_notifier;
 
-static void sdl_update_caption(struct sdl2_state *scon);
+static void sdl_update_caption(struct sdl2_console *scon);
 
-static struct sdl2_state *get_scon_from_window(uint32_t window_id)
+static struct sdl2_console *get_scon_from_window(uint32_t window_id)
 {
     int i;
     for (i = 0; i < sdl2_num_outputs; i++) {
@@ -86,180 +68,57 @@ static struct sdl2_state *get_scon_from_window(uint32_t window_id)
     return NULL;
 }
 
-static void sdl_update(DisplayChangeListener *dcl,
-                       int x, int y, int w, int h)
+void sdl2_window_create(struct sdl2_console *scon)
 {
-    struct sdl2_state *scon = container_of(dcl, struct sdl2_state, dcl);
-    SDL_Rect rect;
-    DisplaySurface *surf = qemu_console_surface(dcl->con);
+    int flags = 0;
 
-    if (!surf) {
+    if (!scon->surface) {
         return;
     }
-    if (!scon->texture) {
-        return;
-    }
-
-    rect.x = x;
-    rect.y = y;
-    rect.w = w;
-    rect.h = h;
-
-    SDL_UpdateTexture(scon->texture, NULL, surface_data(surf),
-                      surface_stride(surf));
-    SDL_RenderCopy(scon->real_renderer, scon->texture, &rect, &rect);
-    SDL_RenderPresent(scon->real_renderer);
-}
-
-static void do_sdl_resize(struct sdl2_state *scon, int width, int height,
-                          int bpp)
-{
-    int flags;
-
-    if (scon->real_window && scon->real_renderer) {
-        if (width && height) {
-            SDL_RenderSetLogicalSize(scon->real_renderer, width, height);
-            SDL_SetWindowSize(scon->real_window, width, height);
-        } else {
-            SDL_DestroyRenderer(scon->real_renderer);
-            SDL_DestroyWindow(scon->real_window);
-            scon->real_renderer = NULL;
-            scon->real_window = NULL;
-        }
-    } else {
-        if (!width || !height) {
-            return;
-        }
-        flags = 0;
-        if (gui_fullscreen) {
-            flags |= SDL_WINDOW_FULLSCREEN;
-        } else {
-            flags |= SDL_WINDOW_RESIZABLE;
-        }
-        if (scon->hidden) {
-            flags |= SDL_WINDOW_HIDDEN;
-        }
-
-        scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED,
-                                             SDL_WINDOWPOS_UNDEFINED,
-                                             width, height, flags);
-        scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0);
-        sdl_update_caption(scon);
-    }
-}
-
-static void sdl_switch(DisplayChangeListener *dcl,
-                       DisplaySurface *new_surface)
-{
-    struct sdl2_state *scon = container_of(dcl, struct sdl2_state, dcl);
-    int format = 0;
-    int idx = scon->idx;
-    DisplaySurface *old_surface = scon->surface;
-
-    /* temporary hack: allows to call sdl_switch to handle scaling changes */
-    if (new_surface) {
-        scon->surface = new_surface;
-    }
-
-    if (!new_surface && idx > 0) {
-        scon->surface = NULL;
-    }
+    assert(!scon->real_window);
 
-    if (new_surface == NULL) {
-        do_sdl_resize(scon, 0, 0, 0);
+    if (gui_fullscreen) {
+        flags |= SDL_WINDOW_FULLSCREEN_DESKTOP;
     } else {
-        do_sdl_resize(scon, surface_width(scon->surface),
-                      surface_height(scon->surface), 0);
+        flags |= SDL_WINDOW_RESIZABLE;
     }
-
-    if (old_surface && scon->texture) {
-        SDL_DestroyTexture(scon->texture);
-        scon->texture = NULL;
+    if (scon->hidden) {
+        flags |= SDL_WINDOW_HIDDEN;
     }
 
-    if (new_surface) {
-        if (!scon->texture) {
-            if (surface_bits_per_pixel(scon->surface) == 16) {
-                format = SDL_PIXELFORMAT_RGB565;
-            } else if (surface_bits_per_pixel(scon->surface) == 32) {
-                format = SDL_PIXELFORMAT_ARGB8888;
-            }
-
-            scon->texture = SDL_CreateTexture(scon->real_renderer, format,
-                                              SDL_TEXTUREACCESS_STREAMING,
-                                              surface_width(new_surface),
-                                              surface_height(new_surface));
-        }
-    }
+    scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED,
+                                         SDL_WINDOWPOS_UNDEFINED,
+                                         surface_width(scon->surface),
+                                         surface_height(scon->surface),
+                                         flags);
+    scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0);
+    sdl_update_caption(scon);
 }
 
-static void reset_keys(struct sdl2_state *scon)
+void sdl2_window_destroy(struct sdl2_console *scon)
 {
-    QemuConsole *con = scon ? scon->dcl.con : NULL;
-    int i;
-
-    for (i = 0; i < 256; i++) {
-        if (modifiers_state[i]) {
-            int qcode = sdl2_scancode_to_qcode[i];
-            qemu_input_event_send_key_qcode(con, qcode, false);
-            modifiers_state[i] = 0;
-        }
+    if (!scon->real_window) {
+        return;
     }
+
+    SDL_DestroyRenderer(scon->real_renderer);
+    scon->real_renderer = NULL;
+    SDL_DestroyWindow(scon->real_window);
+    scon->real_window = NULL;
 }
 
-static void sdl_process_key(struct sdl2_state *scon,
-                            SDL_KeyboardEvent *ev)
+void sdl2_window_resize(struct sdl2_console *scon)
 {
-    int qcode = sdl2_scancode_to_qcode[ev->keysym.scancode];
-    QemuConsole *con = scon ? scon->dcl.con : NULL;
-
-    if (!qemu_console_is_graphic(con)) {
-        if (ev->type == SDL_KEYDOWN) {
-            switch (ev->keysym.scancode) {
-            case SDL_SCANCODE_RETURN:
-                kbd_put_keysym_console(con, '\n');
-                break;
-            case SDL_SCANCODE_BACKSPACE:
-                kbd_put_keysym_console(con, QEMU_KEY_BACKSPACE);
-                break;
-            default:
-                kbd_put_qcode_console(con, qcode);
-                break;
-            }
-        }
+    if (!scon->real_window) {
         return;
     }
 
-    switch (ev->keysym.scancode) {
-#if 0
-    case SDL_SCANCODE_NUMLOCKCLEAR:
-    case SDL_SCANCODE_CAPSLOCK:
-        /* SDL does not send the key up event, so we generate it */
-        qemu_input_event_send_key_qcode(con, qcode, true);
-        qemu_input_event_send_key_qcode(con, qcode, false);
-        return;
-#endif
-    case SDL_SCANCODE_LCTRL:
-    case SDL_SCANCODE_LSHIFT:
-    case SDL_SCANCODE_LALT:
-    case SDL_SCANCODE_LGUI:
-    case SDL_SCANCODE_RCTRL:
-    case SDL_SCANCODE_RSHIFT:
-    case SDL_SCANCODE_RALT:
-    case SDL_SCANCODE_RGUI:
-        if (ev->type == SDL_KEYUP) {
-            modifiers_state[ev->keysym.scancode] = 0;
-        } else {
-            modifiers_state[ev->keysym.scancode] = 1;
-        }
-        /* fall though */
-    default:
-        qemu_input_event_send_key_qcode(con, qcode,
-                                        ev->type == SDL_KEYDOWN);
-    }
+    SDL_SetWindowSize(scon->real_window,
+                      surface_width(scon->surface),
+                      surface_height(scon->surface));
 }
 
-static void sdl_update_caption(struct sdl2_state *scon)
+static void sdl_update_caption(struct sdl2_console *scon)
 {
     char win_title[1024];
     char icon_title[1024];
@@ -269,11 +128,11 @@ static void sdl_update_caption(struct sdl2_state *scon)
         status = " [Stopped]";
     } else if (gui_grab) {
         if (alt_grab) {
-            status = " - Press Ctrl-Alt-Shift to exit mouse grab";
+            status = " - Press Ctrl-Alt-Shift to exit grab";
         } else if (ctrl_grab) {
-            status = " - Press Right-Ctrl to exit mouse grab";
+            status = " - Press Right-Ctrl to exit grab";
         } else {
-            status = " - Press Ctrl-Alt to exit mouse grab";
+            status = " - Press Ctrl-Alt to exit grab";
         }
     }
 
@@ -323,7 +182,7 @@ static void sdl_show_cursor(void)
     }
 }
 
-static void sdl_grab_start(struct sdl2_state *scon)
+static void sdl_grab_start(struct sdl2_console *scon)
 {
     QemuConsole *con = scon ? scon->dcl.con : NULL;
 
@@ -351,7 +210,7 @@ static void sdl_grab_start(struct sdl2_state *scon)
     sdl_update_caption(scon);
 }
 
-static void sdl_grab_end(struct sdl2_state *scon)
+static void sdl_grab_end(struct sdl2_console *scon)
 {
     SDL_SetWindowGrab(scon->real_window, SDL_FALSE);
     gui_grab = 0;
@@ -359,7 +218,7 @@ static void sdl_grab_end(struct sdl2_state *scon)
     sdl_update_caption(scon);
 }
 
-static void absolute_mouse_grab(struct sdl2_state *scon)
+static void absolute_mouse_grab(struct sdl2_console *scon)
 {
     int mouse_x, mouse_y;
     int scr_w, scr_h;
@@ -386,7 +245,7 @@ static void sdl_mouse_mode_change(Notifier *notify, void *data)
     }
 }
 
-static void sdl_send_mouse_event(struct sdl2_state *scon, int dx, int dy,
+static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy,
                                  int x, int y, int state)
 {
     static uint32_t bmap[INPUT_BUTTON_MAX] = {
@@ -409,7 +268,7 @@ static void sdl_send_mouse_event(struct sdl2_state *scon, int dx, int dy,
         int i;
 
         for (i = 0; i < sdl2_num_outputs; i++) {
-            struct sdl2_state *thiscon = &sdl2_console[i];
+            struct sdl2_console *thiscon = &sdl2_console[i];
             if (thiscon->real_window && thiscon->surface) {
                 SDL_GetWindowSize(thiscon->real_window, &scr_w, &scr_h);
                 cur_off_x = thiscon->x;
@@ -443,48 +302,27 @@ static void sdl_send_mouse_event(struct sdl2_state *scon, int dx, int dy,
     qemu_input_event_sync();
 }
 
-static void sdl_scale(struct sdl2_state *scon, int width, int height)
-{
-    int bpp = 0;
-    do_sdl_resize(scon, width, height, bpp);
-    scaling_active = 1;
-}
-
-static void toggle_full_screen(struct sdl2_state *scon)
+static void toggle_full_screen(struct sdl2_console *scon)
 {
-    int width = surface_width(scon->surface);
-    int height = surface_height(scon->surface);
-    int bpp = surface_bits_per_pixel(scon->surface);
-
     gui_fullscreen = !gui_fullscreen;
     if (gui_fullscreen) {
-        SDL_GetWindowSize(scon->real_window,
-                          &gui_saved_width, &gui_saved_height);
-        gui_saved_scaling = scaling_active;
-
-        do_sdl_resize(scon, width, height, bpp);
-        scaling_active = 0;
-
+        SDL_SetWindowFullscreen(scon->real_window,
+                                SDL_WINDOW_FULLSCREEN_DESKTOP);
         gui_saved_grab = gui_grab;
         sdl_grab_start(scon);
     } else {
-        if (gui_saved_scaling) {
-            sdl_scale(scon, gui_saved_width, gui_saved_height);
-        } else {
-            do_sdl_resize(scon, width, height, 0);
-        }
         if (!gui_saved_grab) {
             sdl_grab_end(scon);
         }
+        SDL_SetWindowFullscreen(scon->real_window, 0);
     }
-    graphic_hw_invalidate(scon->dcl.con);
-    graphic_hw_update(scon->dcl.con);
+    sdl2_2d_redraw(scon);
 }
 
 static void handle_keydown(SDL_Event *ev)
 {
     int mod_state, win;
-    struct sdl2_state *scon = get_scon_from_window(ev->key.windowID);
+    struct sdl2_console *scon = get_scon_from_window(ev->key.windowID);
 
     if (alt_grab) {
         mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
@@ -524,14 +362,13 @@ static void handle_keydown(SDL_Event *ev)
             gui_keysym = 1;
             break;
         case SDL_SCANCODE_U:
-            if (scaling_active) {
-                scaling_active = 0;
-                sdl_switch(&scon->dcl, NULL);
-                graphic_hw_invalidate(scon->dcl.con);
-                graphic_hw_update(scon->dcl.con);
-            }
+            sdl2_window_destroy(scon);
+            sdl2_window_create(scon);
+            /* re-create texture */
+            sdl2_2d_switch(&scon->dcl, scon->surface);
             gui_keysym = 1;
             break;
+#if 0
         case SDL_SCANCODE_KP_PLUS:
         case SDL_SCANCODE_KP_MINUS:
             if (!gui_fullscreen) {
@@ -544,25 +381,26 @@ static void handle_keydown(SDL_Event *ev)
                             160);
                 height = (surface_height(scon->surface) * width) /
                     surface_width(scon->surface);
-
+                fprintf(stderr, "%s: scale to %dx%d\n",
+                        __func__, width, height);
                 sdl_scale(scon, width, height);
-                graphic_hw_invalidate(NULL);
-                graphic_hw_update(NULL);
+                sdl2_2d_redraw(scon);
                 gui_keysym = 1;
             }
+#endif
         default:
             break;
         }
     }
     if (!gui_keysym) {
-        sdl_process_key(scon, &ev->key);
+        sdl2_process_key(scon, &ev->key);
     }
 }
 
 static void handle_keyup(SDL_Event *ev)
 {
     int mod_state;
-    struct sdl2_state *scon = get_scon_from_window(ev->key.windowID);
+    struct sdl2_console *scon = get_scon_from_window(ev->key.windowID);
 
     if (!alt_grab) {
         mod_state = (ev->key.keysym.mod & gui_grab_code);
@@ -580,19 +418,19 @@ static void handle_keyup(SDL_Event *ev)
             }
             /* SDL does not send back all the modifiers key, so we must
              * correct it. */
-            reset_keys(scon);
+            sdl2_reset_keys(scon);
             return;
         }
         gui_keysym = 0;
     }
     if (!gui_keysym) {
-        sdl_process_key(scon, &ev->key);
+        sdl2_process_key(scon, &ev->key);
     }
 }
 
 static void handle_textinput(SDL_Event *ev)
 {
-    struct sdl2_state *scon = get_scon_from_window(ev->key.windowID);
+    struct sdl2_console *scon = get_scon_from_window(ev->key.windowID);
     QemuConsole *con = scon ? scon->dcl.con : NULL;
 
     if (qemu_console_is_graphic(con)) {
@@ -604,7 +442,7 @@ static void handle_textinput(SDL_Event *ev)
 static void handle_mousemotion(SDL_Event *ev)
 {
     int max_x, max_y;
-    struct sdl2_state *scon = get_scon_from_window(ev->key.windowID);
+    struct sdl2_console *scon = get_scon_from_window(ev->key.windowID);
 
     if (qemu_input_is_absolute() || absolute_enabled) {
         int scr_w, scr_h;
@@ -631,7 +469,7 @@ static void handle_mousebutton(SDL_Event *ev)
 {
     int buttonstate = SDL_GetMouseState(NULL, NULL);
     SDL_MouseButtonEvent *bev;
-    struct sdl2_state *scon = get_scon_from_window(ev->key.windowID);
+    struct sdl2_console *scon = get_scon_from_window(ev->key.windowID);
 
     bev = &ev->button;
     if (!gui_grab && !qemu_input_is_absolute()) {
@@ -651,7 +489,7 @@ static void handle_mousebutton(SDL_Event *ev)
 
 static void handle_mousewheel(SDL_Event *ev)
 {
-    struct sdl2_state *scon = get_scon_from_window(ev->key.windowID);
+    struct sdl2_console *scon = get_scon_from_window(ev->key.windowID);
     SDL_MouseWheelEvent *wev = &ev->wheel;
     InputButton btn;
 
@@ -669,14 +507,12 @@ static void handle_mousewheel(SDL_Event *ev)
     qemu_input_event_sync();
 }
 
-static void handle_windowevent(DisplayChangeListener *dcl, SDL_Event *ev)
+static void handle_windowevent(SDL_Event *ev)
 {
-    int w, h;
-    struct sdl2_state *scon = get_scon_from_window(ev->key.windowID);
+    struct sdl2_console *scon = get_scon_from_window(ev->window.windowID);
 
     switch (ev->window.event) {
     case SDL_WINDOWEVENT_RESIZED:
-        sdl_scale(scon, ev->window.data1, ev->window.data2);
         {
             QemuUIInfo info;
             memset(&info, 0, sizeof(info));
@@ -684,12 +520,10 @@ static void handle_windowevent(DisplayChangeListener *dcl, SDL_Event *ev)
             info.height = ev->window.data2;
             dpy_set_ui_info(scon->dcl.con, &info);
         }
-        graphic_hw_invalidate(scon->dcl.con);
-        graphic_hw_update(scon->dcl.con);
+        sdl2_2d_redraw(scon);
         break;
     case SDL_WINDOWEVENT_EXPOSED:
-        SDL_GetWindowSize(SDL_GetWindowFromID(ev->window.windowID), &w, &h);
-        sdl_update(dcl, 0, 0, w, h);
+        sdl2_2d_redraw(scon);
         break;
     case SDL_WINDOWEVENT_FOCUS_GAINED:
     case SDL_WINDOWEVENT_ENTER:
@@ -703,10 +537,10 @@ static void handle_windowevent(DisplayChangeListener *dcl, SDL_Event *ev)
         }
         break;
     case SDL_WINDOWEVENT_RESTORED:
-        update_displaychangelistener(dcl, GUI_REFRESH_INTERVAL_DEFAULT);
+        update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT);
         break;
     case SDL_WINDOWEVENT_MINIMIZED:
-        update_displaychangelistener(dcl, 500);
+        update_displaychangelistener(&scon->dcl, 500);
         break;
     case SDL_WINDOWEVENT_CLOSE:
         if (!no_quit) {
@@ -714,12 +548,21 @@ static void handle_windowevent(DisplayChangeListener *dcl, SDL_Event *ev)
             qemu_system_shutdown_request();
         }
         break;
+    case SDL_WINDOWEVENT_SHOWN:
+        if (scon->hidden) {
+            SDL_HideWindow(scon->real_window);
+        }
+        break;
+    case SDL_WINDOWEVENT_HIDDEN:
+        if (!scon->hidden) {
+            SDL_ShowWindow(scon->real_window);
+        }
+        break;
     }
 }
 
-static void sdl_refresh(DisplayChangeListener *dcl)
+void sdl2_poll_events(struct sdl2_console *scon)
 {
-    struct sdl2_state *scon = container_of(dcl, struct sdl2_state, dcl);
     SDL_Event ev1, *ev = &ev1;
 
     if (scon->last_vm_running != runstate_is_running()) {
@@ -727,8 +570,6 @@ static void sdl_refresh(DisplayChangeListener *dcl)
         sdl_update_caption(scon);
     }
 
-    graphic_hw_update(dcl->con);
-
     while (SDL_PollEvent(ev)) {
         switch (ev->type) {
         case SDL_KEYDOWN:
@@ -757,7 +598,7 @@ static void sdl_refresh(DisplayChangeListener *dcl)
             handle_mousewheel(ev);
             break;
         case SDL_WINDOWEVENT:
-            handle_windowevent(dcl, ev);
+            handle_windowevent(ev);
             break;
         default:
             break;
@@ -768,7 +609,7 @@ static void sdl_refresh(DisplayChangeListener *dcl)
 static void sdl_mouse_warp(DisplayChangeListener *dcl,
                            int x, int y, int on)
 {
-    struct sdl2_state *scon = container_of(dcl, struct sdl2_state, dcl);
+    struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
     if (on) {
         if (!guest_cursor) {
             sdl_show_cursor();
@@ -826,11 +667,11 @@ static void sdl_cleanup(void)
     SDL_QuitSubSystem(SDL_INIT_VIDEO);
 }
 
-static const DisplayChangeListenerOps dcl_ops = {
-    .dpy_name          = "sdl",
-    .dpy_gfx_update    = sdl_update,
-    .dpy_gfx_switch    = sdl_switch,
-    .dpy_refresh       = sdl_refresh,
+static const DisplayChangeListenerOps dcl_2d_ops = {
+    .dpy_name          = "sdl2-2d",
+    .dpy_gfx_update    = sdl2_2d_update,
+    .dpy_gfx_switch    = sdl2_2d_switch,
+    .dpy_refresh       = sdl2_2d_refresh,
     .dpy_mouse_set     = sdl_mouse_warp,
     .dpy_cursor_define = sdl_mouse_define,
 };
@@ -865,6 +706,7 @@ void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
                 SDL_GetError());
         exit(1);
     }
+    SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1");
 
     for (i = 0;; i++) {
         QemuConsole *con = qemu_console_lookup_by_index(i);
@@ -873,13 +715,13 @@ void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
         }
     }
     sdl2_num_outputs = i;
-    sdl2_console = g_new0(struct sdl2_state, sdl2_num_outputs);
+    sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs);
     for (i = 0; i < sdl2_num_outputs; i++) {
         QemuConsole *con = qemu_console_lookup_by_index(i);
         if (!qemu_console_is_graphic(con)) {
             sdl2_console[i].hidden = true;
         }
-        sdl2_console[i].dcl.ops = &dcl_ops;
+        sdl2_console[i].dcl.ops = &dcl_2d_ops;
         sdl2_console[i].dcl.con = con;
         register_displaychangelistener(&sdl2_console[i].dcl);
         sdl2_console[i].idx = i;
@@ -912,4 +754,3 @@ void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
 
     atexit(sdl_cleanup);
 }
-#endif