menu: added interpolation menu

1. Now, user can choose the interpolation filter type
for emulator window scaling by popup menu.
(Scale>Interpolation)
2. delete unused resource image file (usb_keyboard.png)

Change-Id: I32010ea2577cabf58abd4c289fe8fd22c400cfb7
Signed-off-by: GiWoong Kim <giwoong.kim@samsung.com>

diff --git a/tizen/src/maru_display.c b/tizen/src/maru_display.c
index 582f842ae06966065d5c57566397db626a719630..f3873884b935624137d7b730c3719d2bde8c3e04 100644 (file)
--- a/tizen/src/maru_display.c
+++ b/tizen/src/maru_display.c
@@ -74,6 +74,15 @@ void maru_display_fini(void)
 #endif
 }
 
+void maru_display_interpolation(bool on)
+{
+#ifndef CONFIG_USE_SHM
+    maruskin_sdl_interpolation(on);
+#else
+    /* do nothing */
+#endif
+}
+
 void maruskin_init(uint64 swt_handle,
     unsigned int display_width, unsigned int display_height,
     bool blank_guide)

diff --git a/tizen/src/maru_display.h b/tizen/src/maru_display.h
index 3c1f7568ad6dbfd59388924825655b97e7672918..326c6764e3d75d03fbeeeefac97e60775e539762 100644 (file)
--- a/tizen/src/maru_display.h
+++ b/tizen/src/maru_display.h
@@ -41,6 +41,7 @@ typedef struct MaruScreenshot {
 
 void maru_display_init(DisplayState *ds);
 void maru_display_fini(void);
+void maru_display_interpolation(bool on);
 void maruskin_init(uint64 swt_handle,
     unsigned int display_width, unsigned int display_height,
     bool blank_guide);

diff --git a/tizen/src/maru_sdl.c b/tizen/src/maru_sdl.c
index e7910088192567b58f4b0b5a9ed39b48d1b329ba..a6ce7e1cedc00285e7354953242a41a45119f30b 100644 (file)
--- a/tizen/src/maru_sdl.c
+++ b/tizen/src/maru_sdl.c
@@ -57,6 +57,7 @@ static SDL_Surface *surface_guide; /* blank guide image */
 
 static double current_scale_factor = 1.0;
 static double current_screen_degree;
+static pixman_filter_t sdl_pixman_filter;
 
 static int sdl_alteration;
 
@@ -109,7 +110,8 @@ static void maru_do_pixman_dpy_surface(pixman_image_t *dst_image)
 }
 
 static SDL_Surface *maru_do_pixman_scale(SDL_Surface *rz_src,
-                                         SDL_Surface *rz_dst)
+                                         SDL_Surface *rz_dst,
+                                         pixman_filter_t filter)
 {
     pixman_image_t *src = NULL;
     pixman_image_t *dst = NULL;
@@ -132,7 +134,7 @@ static SDL_Surface *maru_do_pixman_scale(SDL_Surface *rz_src,
     pixman_f_transform_scale(&matrix_f, NULL, sx, sy);
     pixman_transform_from_pixman_f_transform(&matrix, &matrix_f);
     pixman_image_set_transform(src, &matrix);
-    pixman_image_set_filter(src, PIXMAN_FILTER_BILINEAR, NULL, 0);
+    pixman_image_set_filter(src, filter, NULL, 0);
     pixman_image_composite(PIXMAN_OP_SRC, src, NULL, dst,
                            0, 0, 0, 0, 0, 0,
                            rz_dst->w, rz_dst->h);
@@ -190,7 +192,7 @@ static SDL_Surface *maru_do_pixman_rotate(SDL_Surface *rz_src,
     }
     pixman_transform_from_pixman_f_transform(&matrix, &matrix_f);
     pixman_image_set_transform(src, &matrix);
-    pixman_image_set_filter(src, PIXMAN_FILTER_BILINEAR, NULL, 0);
+    //pixman_image_set_filter(src, PIXMAN_FILTER_BILINEAR, NULL, 0);
     pixman_image_composite(PIXMAN_OP_SRC, src, NULL, dst,
                            0, 0, 0, 0, 0, 0,
                            rz_dst->w, rz_dst->h);
@@ -515,7 +517,8 @@ static void qemu_ds_sdl_refresh(DisplayChangeListener *dcl)
                             guide->format->Rmask, guide->format->Gmask,
                             guide->format->Bmask, guide->format->Amask);
 
-                        scaled_guide = maru_do_pixman_scale(guide, scaled_guide);
+                        scaled_guide = maru_do_pixman_scale(
+                            guide, scaled_guide, PIXMAN_FILTER_BEST);
 
                         dst_x = (surface_screen->w - dst_w) / 2;
                         dst_y = (surface_screen->h - dst_h) / 2;
@@ -594,6 +597,21 @@ DisplayChangeListenerOps maru_dcl_ops = {
     .dpy_refresh       = qemu_ds_sdl_refresh,
 };
 
+void maruskin_sdl_interpolation(bool on)
+{
+    if (on == true) {
+        INFO("set PIXMAN_FILTER_BEST filter for image processing\n");
+
+        /* PIXMAN_FILTER_BILINEAR */
+        sdl_pixman_filter = PIXMAN_FILTER_BEST;
+    } else {
+        INFO("set PIXMAN_FILTER_FAST filter for image processing\n");
+
+        /* PIXMAN_FILTER_NEAREST */
+        sdl_pixman_filter = PIXMAN_FILTER_FAST;
+    }
+}
+
 static void qemu_update(void)
 {
     if (sdl_alteration == -1) {
@@ -616,7 +634,7 @@ static void qemu_update(void)
                 surface_qemu, rotated_screen,
                 (int)current_screen_degree);
             scaled_screen = maru_do_pixman_scale(
-                rotated_screen, scaled_screen);
+                rotated_screen, scaled_screen, sdl_pixman_filter);
 
             SDL_BlitSurface(scaled_screen, NULL, surface_screen, NULL);
         }
@@ -821,6 +839,7 @@ void maruskin_sdl_init(uint64 swt_handle,
 
     set_emul_resolution(display_width, display_height);
     set_emul_sdl_bpp(SDL_BPP);
+    maruskin_sdl_interpolation(true);
     init_multi_touch_state();
 
     if (blank_guide_enable == true) {

diff --git a/tizen/src/maru_sdl.h b/tizen/src/maru_sdl.h
index 79fed28d4cbeb35f521d2df08e76bdef7476da4b..a5ac72b262477145e8a267691f8d60487d63e556 100644 (file)
--- a/tizen/src/maru_sdl.h
+++ b/tizen/src/maru_sdl.h
@@ -43,6 +43,7 @@ void maruskin_sdl_init(uint64 swt_handle,
     unsigned int display_width, unsigned int display_height,
     bool blank_guide);
 void maruskin_sdl_resize(void);
+void maruskin_sdl_interpolation(bool on);
 void maruskin_sdl_quit(void);
 
 #endif /* MARU_SDL_H_ */

diff --git a/tizen/src/skin/client/resource/icons/usb_keyboard.png b/tizen/src/skin/client/resource/icons/usb_keyboard.png
deleted file mode 100644 (file)
index 69a87f3..0000000
Binary files a/tizen/src/skin/client/resource/icons/usb_keyboard.png and /dev/null differ

diff --git a/tizen/src/skin/client/src/org/tizen/emulator/skin/EmulatorShmSkin.java b/tizen/src/skin/client/src/org/tizen/emulator/skin/EmulatorShmSkin.java
index be5e1e93ad2b5c14eeba7bbc9b3f05332b169f94..11682065e1ac6f909213b53689f1dbef58db346a 100644 (file)
--- a/tizen/src/skin/client/src/org/tizen/emulator/skin/EmulatorShmSkin.java
+++ b/tizen/src/skin/client/src/org/tizen/emulator/skin/EmulatorShmSkin.java
@@ -323,6 +323,14 @@ public class EmulatorShmSkin extends EmulatorSkin {
                                        return;
                                }*/
 
+                               if (isOnInterpolation == false) {
+                                       /* Mac - NSImageInterpolationNone */
+                                       e.gc.setInterpolation(SWT.NONE);
+                               } else {
+                                       /* Mac - NSImageInterpolationHigh */
+                                       e.gc.setInterpolation(SWT.HIGH);
+                               }
+
                                if (currentState.getCurrentAngle() == 0) { /* portrait */
                                        e.gc.drawImage(pollThread.imageFramebuffer,
                                                        0, 0, pollThread.widthFB, pollThread.heightFB,

diff --git a/tizen/src/skin/client/src/org/tizen/emulator/skin/EmulatorSkin.java b/tizen/src/skin/client/src/org/tizen/emulator/skin/EmulatorSkin.java
index 6079201332314759334768e40f36fb5cab3e20a7..edce0fb2cda97aebcff5053a6645c0fba33ed2dd 100755 (executable)
--- a/tizen/src/skin/client/src/org/tizen/emulator/skin/EmulatorSkin.java
+++ b/tizen/src/skin/client/src/org/tizen/emulator/skin/EmulatorSkin.java
@@ -151,6 +151,7 @@ public class EmulatorSkin {
        protected Point shellGrabPosition;
        protected boolean isShutdownRequested;
        public boolean isOnTop;
+       public boolean isOnInterpolation;
        public boolean isKeyWindow;
        public boolean isOnKbd;
        private PopupMenu popupMenu;
@@ -189,6 +190,7 @@ public class EmulatorSkin {
                this.pressedKeyEventList = new LinkedList<KeyEventData>();
 
                this.isOnTop = isOnTop;
+               this.isOnInterpolation = true;
                this.isOnKbd = false;
                this.isKeyWindow = false;
 
@@ -1257,8 +1259,8 @@ public class EmulatorSkin {
                getShell().getDisplay().asyncExec(new Runnable() {
                        @Override
                        public void run() {
-                               getPopupMenu().kbdOnItem.setSelection(isOnKbd);
-                               getPopupMenu().kbdOffItem.setSelection(!isOnKbd);
+                               getPopupMenu().hostKbdOnItem.setSelection(isOnKbd);
+                               getPopupMenu().hostKbdOffItem.setSelection(!isOnKbd);
                        }
                });
        }
@@ -1484,6 +1486,26 @@ public class EmulatorSkin {
                return listener;
        }
 
+       public SelectionAdapter createInterpolationMenuListener() {
+               SelectionAdapter listener = new SelectionAdapter() {
+                       @Override
+                       public void widgetSelected(SelectionEvent e) {
+                               MenuItem item = (MenuItem) e.getSource();
+                               if (item.getSelection()) {
+                                       boolean on = item.equals(popupMenu.interpolationHighItem);
+                                       isOnInterpolation = on;
+                                       logger.info("Scale interpolation : " + isOnInterpolation);
+
+                                       communicator.sendToQEMU(SendCommand.SEND_INTERPOLATION_STATE,
+                                                       new BooleanData(on, SendCommand.SEND_INTERPOLATION_STATE.toString()),
+                                                       false);
+                               }
+                       }
+               };
+
+               return listener;
+       }
+
        public SelectionAdapter createKeyWindowMenuListener() {
                SelectionAdapter listener = new SelectionAdapter() {
                        @Override
@@ -1583,7 +1605,7 @@ public class EmulatorSkin {
                return listener;
        }
 
-       public SelectionAdapter createHostKeyboardMenuListener() {
+       public SelectionAdapter createHostKbdMenuListener() {
                SelectionAdapter listener = new SelectionAdapter() {
                        @Override
                        public void widgetSelected(SelectionEvent e) {
@@ -1592,17 +1614,17 @@ public class EmulatorSkin {
                                                        "Host Keyboard is not ready.\n"
                                                                        + "Please wait until the emulator is completely boot up.",
                                                        SWT.ICON_WARNING, config);
-                                       popupMenu.kbdOnItem.setSelection(isOnKbd);
-                                       popupMenu.kbdOffItem.setSelection(!isOnKbd);
+                                       popupMenu.hostKbdOnItem.setSelection(isOnKbd);
+                                       popupMenu.hostKbdOffItem.setSelection(!isOnKbd);
 
                                        return;
                                }
 
                                MenuItem item = (MenuItem) e.getSource();
                                if (item.getSelection()) {
-                                       boolean on = item.equals(popupMenu.kbdOnItem);
+                                       boolean on = item.equals(popupMenu.hostKbdOnItem);
                                        isOnKbd = on;
-                                       logger.info("Host Keyboard " + isOnKbd);
+                                       logger.info("Host Keyboard : " + isOnKbd);
 
                                        communicator.sendToQEMU(SendCommand.SEND_HOST_KBD_STATE,
                                                        new BooleanData(on, SendCommand.SEND_HOST_KBD_STATE.toString()), false);

diff --git a/tizen/src/skin/client/src/org/tizen/emulator/skin/comm/ICommunicator.java b/tizen/src/skin/client/src/org/tizen/emulator/skin/comm/ICommunicator.java
index db75567588849843ef266b436fbfab30d57613e1..e17fc4abcd47c0cf05d25c37f45f21540e277a4b 100644 (file)
--- a/tizen/src/skin/client/src/org/tizen/emulator/skin/comm/ICommunicator.java
+++ b/tizen/src/skin/client/src/org/tizen/emulator/skin/comm/ICommunicator.java
@@ -203,6 +203,7 @@ public interface ICommunicator extends Runnable {
                SEND_RAM_DUMP((short) 18),
                SEND_GUEST_DUMP((short) 19),
                SEND_ECP_PORT_REQ((short) 20),
+               SEND_INTERPOLATION_STATE((short) 21),
 
                RESPONSE_HEART_BEAT((short) 900),
                RESPONSE_DRAW_FRAME((short) 901),

diff --git a/tizen/src/skin/client/src/org/tizen/emulator/skin/image/ImageRegistry.java b/tizen/src/skin/client/src/org/tizen/emulator/skin/image/ImageRegistry.java
index d61f9f0f84c7a3a947e8cd2a7aeb8380df3b4174..30cc6b752ec036152b6d8b1d1f5e24365b48bf90 100644 (file)
--- a/tizen/src/skin/client/src/org/tizen/emulator/skin/image/ImageRegistry.java
+++ b/tizen/src/skin/client/src/org/tizen/emulator/skin/image/ImageRegistry.java
@@ -78,8 +78,7 @@ public class ImageRegistry {
                ADVANCED("advanced.png"),
                CLOSE("close.png"),
                SCREENSHOT("screenshot.png"),
-               USB_KEYBOARD("usb_keyboard.png"),
-               HOST_KEYBOARD("host_keyboard.png"),
+               HOST_KBD("host_keyboard.png"),
                DIAGNOSIS("diagnosis.png"),
                FORCE_CLOSE("force_close.png"),
                ABOUT("about.png"),

diff --git a/tizen/src/skin/client/src/org/tizen/emulator/skin/menu/PopupMenu.java b/tizen/src/skin/client/src/org/tizen/emulator/skin/menu/PopupMenu.java
index 57335a4a5a6faca359220b398e7205117248256d..70bbbe7cfb7349cdad153af7bf0a40a15c79178d 100644 (file)
--- a/tizen/src/skin/client/src/org/tizen/emulator/skin/menu/PopupMenu.java
+++ b/tizen/src/skin/client/src/org/tizen/emulator/skin/menu/PopupMenu.java
@@ -55,10 +55,11 @@ public class PopupMenu {
        public static final String TOPMOST_MENUITEM_NAME = "&Always On Top";
        public static final String ROTATE_MENUITEM_NAME = "&Rotate";
        public static final String SCALE_MENUITEM_NAME = "&Scale";
+       public static final String INTERPOLATION_MENUITEM_NAME = "&Interpolation";
        public static final String KEYWINDOW_MENUITEM_NAME = "&Key Window";
        public static final String ADVANCED_MENUITEM_NAME = "Ad&vanced";
        public static final String SCREENSHOT_MENUITEM_NAME = "&Screen Shot";
-       public static final String HOSTKEYBOARD_MENUITEM_NAME = "&Host Keyboard";
+       public static final String HOSTKBD_MENUITEM_NAME = "&Host Keyboard";
        public static final String DIAGNOSIS_MENUITEM_NAME = "&Diagnosis";
        public static final String RAMDUMP_MENUITEM_NAME = "&Ram Dump";
        public static final String ABOUT_MENUITEM_NAME = "&About";
@@ -81,12 +82,15 @@ public class PopupMenu {
        public MenuItem onTopItem;
        public MenuItem rotateItem;
        public MenuItem scaleItem;
+       public MenuItem interpolationItem;
+       public MenuItem interpolationHighItem;
+       public MenuItem interpolationLowItem;
        public MenuItem keyWindowItem; /* key window menu */
        public MenuItem advancedItem; /* advanced menu */
        public MenuItem screenshotItem;
-       public MenuItem hostKeyboardItem;
-       public MenuItem kbdOnItem;
-       public MenuItem kbdOffItem;
+       public MenuItem hostKbdItem;
+       public MenuItem hostKbdOnItem;
+       public MenuItem hostKbdOffItem;
        public MenuItem diagnosisItem;
        public MenuItem ramdumpItem;
        public MenuItem aboutItem;
@@ -197,13 +201,13 @@ public class PopupMenu {
 
                        /* VirtIO Keyboard menu */
                        if (itemProperties == null || itemProperties.getHostKeyboardItem() == null) {
-                               createHostKeyboardItem(advancedSubMenu, HOSTKEYBOARD_MENUITEM_NAME);
+                               createHostKbdItem(advancedSubMenu, HOSTKBD_MENUITEM_NAME);
                        } else {
-                               MenuItemType hostKeyboardMenuType = itemProperties.getHostKeyboardItem();
-                               if (hostKeyboardMenuType.isVisible() == true) {
-                                       createHostKeyboardItem(advancedSubMenu,
-                                                       (hostKeyboardMenuType.getItemName().isEmpty()) ?
-                                                       HOSTKEYBOARD_MENUITEM_NAME : hostKeyboardMenuType.getItemName());
+                               MenuItemType hostKbdMenuType = itemProperties.getHostKeyboardItem();
+                               if (hostKbdMenuType.isVisible() == true) {
+                                       createHostKbdItem(advancedSubMenu,
+                                                       (hostKbdMenuType.getItemName().isEmpty()) ?
+                                                       HOSTKBD_MENUITEM_NAME : hostKbdMenuType.getItemName());
                                }
                        }
 
@@ -335,11 +339,39 @@ public class PopupMenu {
                        }
 
                        matchedItem.setSelection(true);
+
+                       /* interpolation menu */
+                       createInterpolationItem(scaleSubMenu, INTERPOLATION_MENUITEM_NAME);
                }
 
                scaleItem.setMenu(scaleSubMenu);
        }
 
+       private void createInterpolationItem(Menu menu, String name) {
+               interpolationItem = new MenuItem(menu, SWT.CASCADE);
+               interpolationItem.setText(name);
+
+               Menu interpolationSubMenu = new Menu(menu.getShell(), SWT.DROP_DOWN);
+               {
+                       createInterpolationHighLowItem(interpolationSubMenu);
+               }
+               interpolationItem.setMenu(interpolationSubMenu);
+       }
+
+       private void createInterpolationHighLowItem(Menu menu) {
+               interpolationHighItem = new MenuItem(menu, SWT.RADIO);
+               interpolationHighItem.setText("High");
+               interpolationHighItem.setSelection(skin.isOnInterpolation);
+
+               interpolationLowItem = new MenuItem(menu, SWT.RADIO);
+               interpolationLowItem.setText("Low");
+               interpolationLowItem.setSelection(!skin.isOnInterpolation);
+
+               SelectionAdapter interpolationListener = skin.createInterpolationMenuListener();
+               interpolationHighItem.addSelectionListener(interpolationListener);
+               interpolationLowItem.addSelectionListener(interpolationListener);
+       }
+
        private void createKeyWindowItem(Menu menu, String name) {
                /* load Key Window layout */
                SelectionAdapter keyWindowListener = skin.createKeyWindowMenuListener();
@@ -388,30 +420,30 @@ public class PopupMenu {
                screenshotItem.addSelectionListener(screenshotListener);
        }
 
-       private void createHostKeyboardItem(Menu menu, String name) {
-               hostKeyboardItem = new MenuItem(menu, SWT.CASCADE);
-               hostKeyboardItem.setText(name);
-               hostKeyboardItem.setImage(imageRegistry.getIcon(IconName.HOST_KEYBOARD));
+       private void createHostKbdItem(Menu menu, String name) {
+               hostKbdItem = new MenuItem(menu, SWT.CASCADE);
+               hostKbdItem.setText(name);
+               hostKbdItem.setImage(imageRegistry.getIcon(IconName.HOST_KBD));
 
-               Menu hostKeyboardSubMenu = new Menu(menu.getShell(), SWT.DROP_DOWN);
+               Menu hostKbdSubMenu = new Menu(menu.getShell(), SWT.DROP_DOWN);
                {
-                       createKeyboardOnOffItem(hostKeyboardSubMenu);
+                       createKbdOnOffItem(hostKbdSubMenu);
                }
-               hostKeyboardItem.setMenu(hostKeyboardSubMenu);
+               hostKbdItem.setMenu(hostKbdSubMenu);
        }
 
-       private void createKeyboardOnOffItem(Menu menu) {
-               kbdOnItem = new MenuItem(menu, SWT.RADIO);
-               kbdOnItem.setText("On");
-               kbdOnItem.setSelection(skin.isOnKbd);
+       private void createKbdOnOffItem(Menu menu) {
+               hostKbdOnItem = new MenuItem(menu, SWT.RADIO);
+               hostKbdOnItem.setText("On");
+               hostKbdOnItem.setSelection(skin.isOnKbd);
 
-               kbdOffItem = new MenuItem(menu, SWT.RADIO);
-               kbdOffItem.setText("Off");
-               kbdOffItem.setSelection(!skin.isOnKbd);
+               hostKbdOffItem = new MenuItem(menu, SWT.RADIO);
+               hostKbdOffItem.setText("Off");
+               hostKbdOffItem.setSelection(!skin.isOnKbd);
 
-               SelectionAdapter hostKeyboardListener = skin.createHostKeyboardMenuListener();
-               kbdOnItem.addSelectionListener(hostKeyboardListener);
-               kbdOffItem.addSelectionListener(hostKeyboardListener);
+               SelectionAdapter hostKbdListener = skin.createHostKbdMenuListener();
+               hostKbdOnItem.addSelectionListener(hostKbdListener);
+               hostKbdOffItem.addSelectionListener(hostKbdListener);
        }
 
        private void createRamDumpItem(Menu menu, String name) {

diff --git a/tizen/src/skin/maruskin_operation.c b/tizen/src/skin/maruskin_operation.c
index a1d2e32b31d3e063e255efdb45fc2e9667b9da07..4f01c430a72a4a6c30ec30261a2a85ab0b51c172 100644 (file)
--- a/tizen/src/skin/maruskin_operation.c
+++ b/tizen/src/skin/maruskin_operation.c
@@ -566,6 +566,13 @@ void do_host_kbd_enable(bool on)
 #endif
 }
 
+void do_interpolation_enable(bool on)
+{
+    INFO("interpolation enable : %d\n", on);
+
+    maru_display_interpolation(on);
+}
+
 void do_ram_dump(void)
 {
     INFO("dump ram!\n");

diff --git a/tizen/src/skin/maruskin_operation.h b/tizen/src/skin/maruskin_operation.h
index 76d0011d65819e755d1179dda04163d18c419646..e7234c0906d3044997868d9543a35e7b9ef5acc8 100644 (file)
--- a/tizen/src/skin/maruskin_operation.h
+++ b/tizen/src/skin/maruskin_operation.h
@@ -66,6 +66,7 @@ void free_screenshot_info(QemuSurfaceInfo *);
 
 void do_open_shell(void);
 void do_host_kbd_enable(bool on);
+void do_interpolation_enable(bool on);
 void do_ram_dump(void);
 void do_guestmemory_dump(void);
 

diff --git a/tizen/src/skin/maruskin_server.c b/tizen/src/skin/maruskin_server.c
index 8025f5d1b26abcd26adad7cb8fb276fa7399565d..ebcb90fb42d33ab60c6e6266bc0c8d9581920878 100644 (file)
--- a/tizen/src/skin/maruskin_server.c
+++ b/tizen/src/skin/maruskin_server.c
@@ -112,6 +112,7 @@ enum {
     RECV_RAM_DUMP = 18,
     RECV_GUESTMEMORY_DUMP = 19,
     RECV_ECP_PORT_REQ = 20,
+    RECV_INTERPOLATION_STATE = 21,
 
     RECV_RESPONSE_HEART_BEAT = 900,
     RECV_RESPONSE_DRAW_FRAME = 901,
@@ -1092,6 +1093,27 @@ static void* run_skin_server(void* args)
                     }
                     break;
                 }
+                case RECV_INTERPOLATION_STATE: {
+                    char on = 0;
+
+                    log_cnt += sprintf(log_buf + log_cnt, "RECV_INTERPOLATION_STATE ==\n");
+                    TRACE(log_buf);
+
+                    if (length <= 0) {
+                        INFO("there is no data looking at 0 length.\n");
+                        continue;
+                    }
+
+                    memcpy(&on, recvbuf, sizeof(on));
+
+                    if (on == 0) {
+                        do_interpolation_enable(false);
+                    } else {
+                        do_interpolation_enable(true);
+                    }
+
+                    break;
+                }
                 case RECV_RESPONSE_DRAW_FRAME: {
                     pthread_mutex_lock(&mutex_draw_display);
                     draw_display_state = 0; /* framebuffer has been drawn */