[client] all: move all SDL specific code into displayservers/sdl

client/CMakeLists.txt

@@ -53,6 +53,10 @@ add_compile_options(
 set(EXE_FLAGS "-Wl,--gc-sections -z noexecstack")
 set(CMAKE_C_STANDARD 11)
 
+if (ENABLE_EGL)
+  add_definitions(-D ENABLE_EGL)
+endif()
+
 if(ENABLE_ASAN)
   add_compile_options("-fno-omit-frame-pointer" "-fsanitize=address")
   set(EXE_FLAGS "${EXE_FLAGS} -fno-omit-frame-pointer -fsanitize=address")
@@ -108,6 +112,7 @@ set(SOURCES
 	src/util.c
 	src/clipboard.c
 	src/kb.c
+	src/egl_dynprocs.c
 )
 
 add_subdirectory("${PROJECT_TOP}/common"          "${CMAKE_BINARY_DIR}/common"   )

client/displayservers/SDL/sdl.c

@@ -20,14 +20,27 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 #include "interface/displayserver.h"
 
 #include <SDL2/SDL.h>
+#include <SDL2/SDL_syswm.h>
+
+#include <EGL/eglext.h>
+
+#if defined(SDL_VIDEO_DRIVER_WAYLAND)
+#include <wayland-egl.h>
+#endif
 
 #include "app.h"
 #include "kb.h"
+#include "egl_dynprocs.h"
 #include "common/types.h"
 #include "common/debug.h"
 
 struct SDLDSState
 {
+  SDL_Window * window;
+  SDL_Cursor * cursor;
+
+  EGLNativeWindowType wlDisplay;
+
   bool keyboardGrabbed;
   bool pointerGrabbed;
   bool exiting;
@@ -35,14 +48,72 @@ struct SDLDSState
 
 static struct SDLDSState sdl;
 
-static bool sdlEarlyInit(void)
+/* forwards */
+static int sdlEventFilter(void * userdata, SDL_Event * event);
+
+static bool sdlProbe(void)
 {
   return true;
 }
 
-static bool sdlInit(SDL_SysWMinfo * info)
+static bool sdlEarlyInit(void)
+{
+  // Allow screensavers for now: we will enable and disable as needed.
+  SDL_SetHint(SDL_HINT_VIDEO_ALLOW_SCREENSAVER, "1");
+
+  if (SDL_Init(SDL_INIT_VIDEO) < 0)
+  {
+    DEBUG_ERROR("SDL_Init Failed");
+    return false;
+  }
+
+  return true;
+}
+
+static bool sdlInit(const LG_DSInitParams params)
 {
   memset(&sdl, 0, sizeof(sdl));
+
+  sdl.window = SDL_CreateWindow(
+    params.title,
+    params.center ? SDL_WINDOWPOS_CENTERED : params.x,
+    params.center ? SDL_WINDOWPOS_CENTERED : params.y,
+    params.w,
+    params.h,
+    (
+      SDL_WINDOW_HIDDEN |
+      (params.resizable  ? SDL_WINDOW_RESIZABLE  : 0) |
+      (params.borderless ? SDL_WINDOW_BORDERLESS : 0) |
+      (params.maximize   ? SDL_WINDOW_MAXIMIZED  : 0)
+    )
+  );
+
+  if (sdl.window == NULL)
+  {
+    DEBUG_ERROR("Could not create an SDL window: %s\n", SDL_GetError());
+    return 1;
+  }
+
+  const uint8_t data[4] = {0xf, 0x9, 0x9, 0xf};
+  const uint8_t mask[4] = {0xf, 0xf, 0xf, 0xf};
+  sdl.cursor = SDL_CreateCursor(data, mask, 8, 4, 4, 0);
+  SDL_SetCursor(sdl.cursor);
+
+  SDL_ShowWindow(sdl.window);
+
+  SDL_SetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS,
+      params.minimizeOnFocusLoss ? "1" : "0");
+
+  if (params.fullscreen)
+    SDL_SetWindowFullscreen(sdl.window, SDL_WINDOW_FULLSCREEN_DESKTOP);
+
+  if (!params.center)
+    SDL_SetWindowPosition(sdl.window, params.x, params.y);
+
+  // ensure mouse acceleration is identical in server mode
+  SDL_SetHintWithPriority(SDL_HINT_MOUSE_RELATIVE_MODE_WARP, "1", SDL_HINT_OVERRIDE);
+
+  SDL_SetEventFilter(sdlEventFilter, NULL);
   return true;
 }
 
@@ -52,10 +123,17 @@ static void sdlStartup(void)
 
 static void sdlShutdown(void)
 {
+  SDL_DestroyWindow(sdl.window);
 }
 
 static void sdlFree(void)
 {
+  if (sdl.cursor)
+    SDL_FreeCursor(sdl.cursor);
+
+  if (sdl.window)
+    SDL_DestroyWindow(sdl.window);
+  SDL_Quit();
 }
 
 static bool sdlGetProp(LG_DSProperty prop, void * ret)
@@ -63,25 +141,120 @@ static bool sdlGetProp(LG_DSProperty prop, void * ret)
   return false;
 }
 
-static bool sdlEventFilter(SDL_Event * event)
+#ifdef ENABLE_EGL
+static EGLDisplay sdlGetEGLDisplay(void)
+{
+  SDL_SysWMinfo wminfo;
+  SDL_VERSION(&wminfo.version);
+  if (!SDL_GetWindowWMInfo(sdl.window, &wminfo))
+  {
+    DEBUG_ERROR("SDL_GetWindowWMInfo failed");
+    return EGL_NO_DISPLAY;
+  }
+
+  EGLNativeDisplayType native;
+  EGLenum platform;
+
+  switch(wminfo.subsystem)
+  {
+    case SDL_SYSWM_X11:
+      native   = (EGLNativeDisplayType)wminfo.info.x11.display;
+      platform = EGL_PLATFORM_X11_KHR;
+      break;
+
+#if defined(SDL_VIDEO_DRIVER_WAYLAND)
+    case SDL_SYSWM_WAYLAND:
+      native   = (EGLNativeDisplayType)wminfo.info.wl.display;
+      platform = EGL_PLATFORM_WAYLAND_KHR;
+      break;
+#endif
+
+    default:
+      DEBUG_ERROR("Unsupported subsystem");
+      return EGL_NO_DISPLAY;
+  }
+
+  const char *early_exts = eglQueryString(NULL, EGL_EXTENSIONS);
+
+  if (strstr(early_exts, "EGL_KHR_platform_base") != NULL &&
+      g_egl_dynProcs.eglGetPlatformDisplay)
+  {
+    DEBUG_INFO("Using eglGetPlatformDisplay");
+    return g_egl_dynProcs.eglGetPlatformDisplay(platform, native, NULL);
+  }
+
+  if (strstr(early_exts, "EGL_EXT_platform_base") != NULL &&
+      g_egl_dynProcs.eglGetPlatformDisplayEXT)
+  {
+    DEBUG_INFO("Using eglGetPlatformDisplayEXT");
+    return g_egl_dynProcs.eglGetPlatformDisplayEXT(platform, native, NULL);
+  }
+
+  DEBUG_INFO("Using eglGetDisplay");
+  return eglGetDisplay(native);
+}
+
+static EGLNativeWindowType sdlGetEGLNativeWindow(void)
+{
+  SDL_SysWMinfo wminfo;
+  SDL_VERSION(&wminfo.version);
+  if (!SDL_GetWindowWMInfo(sdl.window, &wminfo))
+  {
+    DEBUG_ERROR("SDL_GetWindowWMInfo failed");
+    return 0;
+  }
+
+  switch(wminfo.subsystem)
+  {
+    case SDL_SYSWM_X11:
+      return (EGLNativeWindowType)wminfo.info.x11.window;
+
+#if defined(SDL_VIDEO_DRIVER_WAYLAND)
+    case SDL_SYSWM_WAYLAND:
+    {
+      if (sdl.wlDisplay)
+        return sdl.wlDisplay;
+
+      int width, height;
+      SDL_GetWindowSize(sdl.window, &width, &height);
+      sdl.wlDisplay = (EGLNativeWindowType)wl_egl_window_create(
+          wminfo.info.wl.surface, width, height);
+
+      return sdl.wlDisplay;
+    }
+#endif
+
+    default:
+      DEBUG_ERROR("Unsupported subsystem");
+      return 0;
+  }
+}
+#endif
+
+static void sdlSwapBuffers(void)
+{
+  SDL_GL_SwapWindow(sdl.window);
+}
+
+static int sdlEventFilter(void * userdata, SDL_Event * event)
 {
   switch(event->type)
   {
     case SDL_QUIT:
       app_handleCloseEvent();
-      return true;
+      break;
 
     case SDL_MOUSEMOTION:
       // stop motion events during the warp out of the window
       if (sdl.exiting)
-        return true;
+        break;
 
       app_updateCursorPos(event->motion.x, event->motion.y);
       if (app_cursorIsGrabbed())
         app_handleMouseGrabbed(event->motion.xrel, event->motion.yrel);
       else
         app_handleMouseNormal(event->motion.xrel, event->motion.yrel);
-      return true;
+      break;
 
     case SDL_MOUSEBUTTONDOWN:
     {
@@ -90,7 +263,7 @@ static bool sdlEventFilter(SDL_Event * event)
         button += 2;
 
       app_handleButtonPress(button);
-      return true;
+      break;
     }
 
     case SDL_MOUSEBUTTONUP:
@@ -100,7 +273,7 @@ static bool sdlEventFilter(SDL_Event * event)
         button += 2;
 
       app_handleButtonRelease(button);
-      return true;
+      break;
     }
 
     case SDL_MOUSEWHEEL:
@@ -108,7 +281,7 @@ static bool sdlEventFilter(SDL_Event * event)
       int button = event->wheel.y > 0 ? 4 : 5;
       app_handleButtonPress(button);
       app_handleButtonRelease(button);
-      return true;
+      break;
     }
 
     case SDL_KEYDOWN:
@@ -130,27 +303,27 @@ static bool sdlEventFilter(SDL_Event * event)
       {
         case SDL_WINDOWEVENT_ENTER:
           app_handleEnterEvent(true);
-          return true;
+          break;
 
         case SDL_WINDOWEVENT_LEAVE:
           sdl.exiting = false;
           app_handleEnterEvent(false);
-          return true;
+          break;
 
         case SDL_WINDOWEVENT_FOCUS_GAINED:
           app_handleFocusEvent(true);
-          return true;
+          break;
 
         case SDL_WINDOWEVENT_FOCUS_LOST:
           app_handleFocusEvent(false);
-          return true;
+          break;
 
         case SDL_WINDOWEVENT_SIZE_CHANGED:
         case SDL_WINDOWEVENT_RESIZED:
         {
           struct Border border;
           SDL_GetWindowBordersSize(
-            app_getWindow(),
+            sdl.window,
             &border.top,
             &border.left,
             &border.bottom,
@@ -159,21 +332,21 @@ static bool sdlEventFilter(SDL_Event * event)
 
           app_handleResizeEvent(event->window.data1, event->window.data2,
               border);
-          return true;
+          break;
         }
 
         case SDL_WINDOWEVENT_MOVED:
           app_updateWindowPos(event->window.data1, event->window.data2);
-          return true;
+          break;
 
         case SDL_WINDOWEVENT_CLOSE:
           app_handleCloseEvent();
-          return true;
+          break;
       }
       break;
   }
 
-  return false;
+  return 0;
 }
 
 static void sdlShowPointer(bool show)
@@ -183,14 +356,14 @@ static void sdlShowPointer(bool show)
 
 static void sdlGrabPointer(void)
 {
-  SDL_SetWindowGrab(app_getWindow(), SDL_TRUE);
+  SDL_SetWindowGrab(sdl.window, SDL_TRUE);
   SDL_SetRelativeMouseMode(SDL_TRUE);
   sdl.pointerGrabbed = true;
 }
 
 static void sdlUngrabPointer(void)
 {
-  SDL_SetWindowGrab(app_getWindow(), SDL_FALSE);
+  SDL_SetWindowGrab(sdl.window, SDL_FALSE);
   SDL_SetRelativeMouseMode(SDL_FALSE);
   sdl.pointerGrabbed = false;
 }
@@ -198,7 +371,7 @@ static void sdlUngrabPointer(void)
 static void sdlGrabKeyboard(void)
 {
   if (sdl.pointerGrabbed)
-    SDL_SetWindowGrab(app_getWindow(), SDL_FALSE);
+    SDL_SetWindowGrab(sdl.window, SDL_FALSE);
   else
   {
     DEBUG_WARN("SDL does not support grabbing only the keyboard, grabbing all");
@@ -206,16 +379,16 @@ static void sdlGrabKeyboard(void)
   }
 
   SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1");
-  SDL_SetWindowGrab(app_getWindow(), SDL_TRUE);
+  SDL_SetWindowGrab(sdl.window, SDL_TRUE);
   sdl.keyboardGrabbed = true;
 }
 
 static void sdlUngrabKeyboard(void)
 {
   SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "0");
-  SDL_SetWindowGrab(app_getWindow(), SDL_FALSE);
+  SDL_SetWindowGrab(sdl.window, SDL_FALSE);
   if (sdl.pointerGrabbed)
-    SDL_SetWindowGrab(app_getWindow(), SDL_TRUE);
+    SDL_SetWindowGrab(sdl.window, SDL_TRUE);
   sdl.keyboardGrabbed = false;
 }
 
@@ -231,7 +404,7 @@ static void sdlWarpPointer(int x, int y, bool exiting)
     SDL_SetRelativeMouseMode(SDL_FALSE);
 
   // issue the warp
-  SDL_WarpMouseInWindow(app_getWindow(), x, y);
+  SDL_WarpMouseInWindow(sdl.window, x, y);
 }
 
 static void sdlRealignPointer(void)
@@ -264,26 +437,51 @@ static void sdlUninhibitIdle(void)
   SDL_EnableScreenSaver();
 }
 
+static void sdlWait(unsigned int time)
+{
+  SDL_WaitEventTimeout(NULL, time);
+}
+
+static void sdlSetWindowSize(int x, int y)
+{
+  SDL_SetWindowSize(sdl.window, x, y);
+}
+
+static void sdlSetFullscreen(bool fs)
+{
+  SDL_SetWindowFullscreen(sdl.window, fs ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0);
+}
+
 struct LG_DisplayServerOps LGDS_SDL =
 {
-  .subsystem         = SDL_SYSWM_UNKNOWN,
+  .probe               = sdlProbe,
-  .earlyInit         = sdlEarlyInit,
+  .earlyInit           = sdlEarlyInit,
-  .init              = sdlInit,
+  .init                = sdlInit,
-  .startup           = sdlStartup,
+  .startup             = sdlStartup,
-  .shutdown          = sdlShutdown,
+  .shutdown            = sdlShutdown,
-  .free              = sdlFree,
+  .free                = sdlFree,
-  .getProp           = sdlGetProp,
+  .getProp             = sdlGetProp,
-  .eventFilter       = sdlEventFilter,
+
-  .showPointer       = sdlShowPointer,
+#ifdef ENABLE_EGL
-  .grabPointer       = sdlGrabPointer,
+  .getEGLDisplay       = sdlGetEGLDisplay,
-  .ungrabPointer     = sdlUngrabPointer,
+  .getEGLNativeWindow  = sdlGetEGLNativeWindow,
-  .grabKeyboard      = sdlGrabKeyboard,
+#endif
-  .ungrabKeyboard    = sdlUngrabKeyboard,
+
-  .warpPointer       = sdlWarpPointer,
+  .glSwapBuffers       = sdlSwapBuffers,
-  .realignPointer    = sdlRealignPointer,
+
-  .isValidPointerPos = sdlIsValidPointerPos,
+  .showPointer         = sdlShowPointer,
-  .inhibitIdle       = sdlInhibitIdle,
+  .grabPointer         = sdlGrabPointer,
-  .uninhibitIdle     = sdlUninhibitIdle,
+  .ungrabPointer       = sdlUngrabPointer,
+  .grabKeyboard        = sdlGrabKeyboard,
+  .ungrabKeyboard      = sdlUngrabKeyboard,
+  .warpPointer         = sdlWarpPointer,
+  .realignPointer      = sdlRealignPointer,
+  .isValidPointerPos   = sdlIsValidPointerPos,
+  .inhibitIdle         = sdlInhibitIdle,
+  .uninhibitIdle       = sdlUninhibitIdle,
+  .wait                = sdlWait,
+  .setWindowSize       = sdlSetWindowSize,
+  .setFullscreen       = sdlSetFullscreen,
 
   /* SDL does not have clipboard support */
   .cbInit    = NULL,

client/displayservers/Wayland/wayland.c

@@ -343,7 +343,12 @@ static bool waylandEarlyInit(void)
   return true;
 }
 
-static bool waylandInit(SDL_SysWMinfo * info)
+static bool waylandProbe(void)
+{
+  return getenv("WAYLAND_DISPLAY") != NULL;
+}
+
+static bool waylandInit(const LG_DSInitParams params)
 {
   memset(&wm, 0, sizeof(wm));
 
@@ -857,7 +862,7 @@ static void waylandCBRelease(void)
 
 struct LG_DisplayServerOps LGDS_Wayland =
 {
-  .subsystem      = SDL_SYSWM_WAYLAND,
+  .probe          = waylandProbe,
   .earlyInit      = waylandEarlyInit,
   .init           = waylandInit,
   .startup        = waylandStartup,

client/displayservers/X11/x11.c

@@ -88,7 +88,12 @@ static void x11CBSelectionIncr(const XPropertyEvent e);
 static void x11CBSelectionNotify(const XSelectionEvent e);
 static void x11CBXFixesSelectionNotify(const XFixesSelectionNotifyEvent e);
 
-static bool x11Init(SDL_SysWMinfo * info)
+static bool x11Probe(void)
+{
+  return getenv("DISPLAY") != NULL;
+}
+
+static bool x11Init(const LG_DSInitParams params)
 {
   XIDeviceInfo *devinfo;
   int count;
@@ -1107,7 +1112,7 @@ static void x11CBRequest(LG_ClipboardData type)
 
 struct LG_DisplayServerOps LGDS_X11 =
 {
-  .subsystem      = SDL_SYSWM_X11,
+  .probe          = x11Probe,
   .init           = x11Init,
   .startup        = x11Startup,
   .shutdown       = x11Shutdown,

client/include/app.h

@@ -35,9 +35,11 @@ typedef enum LG_MsgAlert
 }
 LG_MsgAlert;
 
-SDL_Window * app_getWindow(void);
-
 bool app_getProp(LG_DSProperty prop, void * ret);
+
+EGLNativeWindowType app_getEGLNativeWindow(void);
+EGLDisplay app_getEGLDisplay(void);
+
 bool app_inputEnabled(void);
 bool app_cursorIsGrabbed(void);
 bool app_cursorWantsRaw(void);
@@ -56,6 +58,10 @@ void app_handleEnterEvent(bool entered);
 void app_handleFocusEvent(bool focused);
 void app_handleCloseEvent(void);
 
+void app_setFullscreen(bool fs);
+
+void app_glSwapBuffers(void);
+
 void app_clipboardRelease(void);
 void app_clipboardNotify(const LG_ClipboardData type, size_t size);
 void app_clipboardData(const LG_ClipboardData type, uint8_t * data, size_t size);
@@ -93,4 +99,5 @@ void app_releaseKeybind(KeybindHandle * handle);
  */
 void app_releaseAllKeybinds(void);
 
+
 #endif

client/include/egl_dynprocs.h

@@ -17,7 +17,9 @@ this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 Place, Suite 330, Boston, MA 02111-1307 USA
 */
 
-#include <SDL2/SDL_egl.h>
+#ifdef ENABLE_EGL
+
+#include <EGL/egl.h>
 #include <GL/gl.h>
 
 typedef EGLDisplay (*eglGetPlatformDisplayEXT_t)(EGLenum platform,
@@ -32,6 +34,10 @@ struct EGLDynProcs
   glEGLImageTargetTexture2DOES_t glEGLImageTargetTexture2DOES;
 };
 
-extern struct EGLDynProcs g_dynprocs;
+extern struct EGLDynProcs g_egl_dynProcs;
 
 void egl_dynProcsInit(void);
+
+#else
+  #define egl_dynProcsInit(...)
+#endif

client/include/interface/decoder.h

@@ -1,75 +0,0 @@
-/*
-Looking Glass - KVM FrameRelay (KVMFR) Client
-Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
-https://looking-glass.hostfission.com
-
-This program is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free Software
-Foundation; either version 2 of the License, or (at your option) any later
-version.
-
-This program is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-PARTICULAR PURPOSE. See the GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along with
-this program; if not, write to the Free Software Foundation, Inc., 59 Temple
-Place, Suite 330, Boston, MA 02111-1307 USA
-*/
-
-#pragma once
-
-#include "renderer.h"
-
-#include <stdint.h>
-#include <stdbool.h>
-#include <SDL2/SDL.h>
-
-#include <GL/gl.h>
-
-typedef enum LG_OutFormat
-{
-  LG_OUTPUT_INVALID,
-
-  LG_OUTPUT_BGRA,
-  LG_OUTPUT_RGBA,
-  LG_OUTPUT_RGBA10,
-  LG_OUTPUT_YUV420
-}
-LG_OutFormat;
-
-typedef bool            (* LG_DecoderCreate        )(void ** opaque);
-typedef void            (* LG_DecoderDestroy       )(void  * opaque);
-typedef bool            (* LG_DecoderInitialize    )(void  * opaque, const LG_RendererFormat format, SDL_Window * window);
-typedef void            (* LG_DecoderDeInitialize  )(void  * opaque);
-typedef LG_OutFormat    (* LG_DecoderGetOutFormat  )(void  * opaque);
-typedef unsigned int    (* LG_DecoderGetFramePitch )(void  * opaque);
-typedef unsigned int    (* LG_DecoderGetFrameStride)(void  * opaque);
-typedef bool            (* LG_DecoderDecode        )(void  * opaque, const uint8_t * src, size_t srcSize);
-typedef const uint8_t * (* LG_DecoderGetBuffer     )(void  * opaque);
-
-typedef bool (* LG_DecoderInitGLTexture  )(void * opaque, GLenum target, GLuint texture, void ** ref);
-typedef void (* LG_DecoderFreeGLTexture  )(void * opaque, void * ref);
-typedef bool (* LG_DecoderUpdateGLTexture)(void * opaque, void * ref);
-
-typedef struct LG_Decoder
-{
-  // mandatory support
-  const char *             name;
-  LG_DecoderCreate         create;
-  LG_DecoderDestroy        destroy;
-  LG_DecoderInitialize     initialize;
-  LG_DecoderDeInitialize   deinitialize;
-  LG_DecoderGetOutFormat   get_out_format;
-  LG_DecoderGetFramePitch  get_frame_pitch;
-  LG_DecoderGetFrameStride get_frame_stride;
-  LG_DecoderDecode         decode;
-  LG_DecoderGetBuffer      get_buffer;
-
-  // optional support
-  const bool                has_gl;
-  LG_DecoderInitGLTexture   init_gl_texture;
-  LG_DecoderFreeGLTexture   free_gl_texture;
-  LG_DecoderUpdateGLTexture update_gl_texture;
-}
-LG_Decoder;

client/include/interface/displayserver.h

@@ -21,8 +21,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 #define _H_I_DISPLAYSERVER_
 
 #include <stdbool.h>
-#include <SDL2/SDL.h>
+#include <EGL/egl.h>
-#include <SDL2/SDL_syswm.h>
 
 typedef enum LG_ClipboardData
 {
@@ -54,20 +53,34 @@ typedef enum LG_DSProperty
 }
 LG_DSProperty;
 
+typedef struct LG_DSInitParams
+{
+  const char * title;
+  int  x, y, w, h;
+  bool center;
+  bool fullscreen;
+  bool resizable;
+  bool borderless;
+  bool maximize;
+  bool minimizeOnFocusLoss;
+}
+LG_DSInitParams;
+
 typedef void (* LG_ClipboardReplyFn)(void * opaque, const LG_ClipboardData type,
     uint8_t * data, uint32_t size);
 
 struct LG_DisplayServerOps
 {
-  const SDL_SYSWM_TYPE subsystem;
+  /* return true if the selected ds is valid for the current platform */
+  bool (*probe)(void);
 
-  /* called before SDL has been initialized */
+  /* called before anything has been initialized */
   bool (*earlyInit)(void);
 
-  /* called after SDL has been initialized */
+  /* called when it's time to create and show the application window */
-  bool (*init)(SDL_SysWMinfo * info);
+  bool (*init)(const LG_DSInitParams params);
 
-  /* called at startup after window creation, renderer and/or SPICE is ready */
+  /* called at startup after window creation, renderer and SPICE is ready */
   void (*startup)();
 
   /* called just before final window destruction, before final free */
@@ -83,8 +96,14 @@ struct LG_DisplayServerOps
    */
   bool (*getProp)(LG_DSProperty prop, void * ret);
 
-  /* event filter, return true if the event has been handled */
+#ifdef ENABLE_EGL
-  bool (*eventFilter)(SDL_Event * event);
+  /* EGL support */
+  EGLDisplay (*getEGLDisplay)(void);
+  EGLNativeWindowType (*getEGLNativeWindow)(void);
+#endif
+
+  /* opengl platform specific methods */
+  void (*glSwapBuffers)(void);
 
   /* dm specific cursor implementations */
   void (*showPointer)(bool show);
@@ -108,6 +127,13 @@ struct LG_DisplayServerOps
   void (*inhibitIdle)();
   void (*uninhibitIdle)();
 
+  /* wait for the specified time without blocking UI processing/event loops */
+  void (*wait)(unsigned int time);
+
+  /* set the window dimensions */
+  void (*setWindowSize)(int x, int y);
+  void (*setFullscreen)(bool fs);
+
   /* clipboard support */
   bool (*cbInit)(void);
   void (*cbNotice)(LG_ClipboardData type);

client/include/interface/renderer.h

@@ -21,9 +21,6 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 #include <stdint.h>
 #include <stdbool.h>
 
-#include <SDL2/SDL.h>
-#include <SDL2/SDL_ttf.h>
-
 #include "app.h"
 #include "common/KVMFR.h"
 #include "common/framebuffer.h"
@@ -107,7 +104,7 @@ typedef const char * (* LG_RendererGetName)();
 typedef void         (* LG_RendererSetup)();
 
 typedef bool         (* LG_RendererCreate       )(void ** opaque, const LG_RendererParams params);
-typedef bool         (* LG_RendererInitialize   )(void * opaque, Uint32 * sdlFlags);
+typedef bool         (* LG_RendererInitialize   )(void * opaque);
 typedef void         (* LG_RendererDeInitialize )(void * opaque);
 typedef bool         (* LG_RendererSupports     )(void * opaque, LG_RendererSupport support);
 typedef void         (* LG_RendererOnRestart    )(void * opaque);
@@ -117,8 +114,8 @@ typedef bool         (* LG_RendererOnMouseEvent )(void * opaque, const bool visi
 typedef bool         (* LG_RendererOnFrameFormat)(void * opaque, const LG_RendererFormat format, bool useDMA);
 typedef bool         (* LG_RendererOnFrame      )(void * opaque, const FrameBuffer * frame, int dmaFD);
 typedef void         (* LG_RendererOnAlert      )(void * opaque, const LG_MsgAlert alert, const char * message, bool ** closeFlag);
-typedef bool         (* LG_RendererRenderStartup)(void * opaque, SDL_Window *window);
+typedef bool         (* LG_RendererRenderStartup)(void * opaque);
-typedef bool         (* LG_RendererRender       )(void * opaque, SDL_Window *window, LG_RendererRotate rotate);
+typedef bool         (* LG_RendererRender       )(void * opaque, LG_RendererRotate rotate);
 typedef void         (* LG_RendererUpdateFPS    )(void * opaque, const float avgUPS, const float avgFPS);
 
 typedef struct LG_Renderer

client/renderers/EGL/CMakeLists.txt

@@ -33,7 +33,6 @@ make_object(
 
 add_library(renderer_EGL STATIC
 	egl.c
-	dynprocs.c
 	egldebug.c
 	shader.c
 	texture.c

client/renderers/EGL/egl.c

@@ -27,17 +27,17 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 #include "util.h"
 #include "dynamic/fonts.h"
 
-#include <SDL2/SDL_syswm.h>
+#include <EGL/egl.h>
-#include <SDL2/SDL_egl.h>
 
 #if defined(SDL_VIDEO_DRIVER_WAYLAND)
 #include <wayland-egl.h>
 #endif
 
 #include <assert.h>
+#include <string.h>
 
 #include "app.h"
-#include "dynprocs.h"
+#include "egl_dynprocs.h"
 #include "model.h"
 #include "shader.h"
 #include "desktop.h"
@@ -208,7 +208,7 @@ bool egl_create(void ** opaque, const LG_RendererParams params)
   return true;
 }
 
-bool egl_initialize(void * opaque, Uint32 * sdlFlags)
+bool egl_initialize(void * opaque)
 {
   struct Inst * this = (struct Inst *)opaque;
   DEBUG_INFO("Double buffering is %s", this->opt.doubleBuffer ? "on" : "off");
@@ -482,73 +482,17 @@ void egl_on_alert(void * opaque, const LG_MsgAlert alert, const char * message,
   this->showAlert = true;
 }
 
-bool egl_render_startup(void * opaque, SDL_Window * window)
+bool egl_render_startup(void * opaque)
 {
   struct Inst * this = (struct Inst *)opaque;
 
-  SDL_SysWMinfo wminfo;
+  this->nativeWind = app_getEGLNativeWindow();
-  SDL_VERSION(&wminfo.version);
+  if (!this->nativeWind)
-  if (!SDL_GetWindowWMInfo(window, &wminfo))
-  {
-    DEBUG_ERROR("SDL_GetWindowWMInfo failed");
     return false;
-  }
-
-  egl_dynProcsInit();
-
-  EGLNativeDisplayType native;
-  EGLenum platform;
-
-  switch(wminfo.subsystem)
-  {
-    case SDL_SYSWM_X11:
-      native           = (EGLNativeDisplayType)wminfo.info.x11.display;
-      platform         = EGL_PLATFORM_X11_KHR;
-      this->nativeWind = (EGLNativeWindowType)wminfo.info.x11.window;
-      break;
-
-#if defined(SDL_VIDEO_DRIVER_WAYLAND)
-    case SDL_SYSWM_WAYLAND:
-    {
-      int width, height;
-      SDL_GetWindowSize(window, &width, &height);
-      native           = (EGLNativeDisplayType)wminfo.info.wl.display;
-      platform         = EGL_PLATFORM_WAYLAND_KHR;
-      this->nativeWind = (EGLNativeWindowType)wl_egl_window_create(
-          wminfo.info.wl.surface, width, height);
-      break;
-    }
-#endif
-
-    default:
-      DEBUG_ERROR("Unsupported subsystem");
-      return false;
-  }
-
-  const char *early_exts = eglQueryString(NULL, EGL_EXTENSIONS);
-  if (strstr(early_exts, "EGL_KHR_platform_base") != NULL &&
-      g_dynprocs.eglGetPlatformDisplay)
-  {
-    DEBUG_INFO("Using eglGetPlatformDisplay");
-    this->display = g_dynprocs.eglGetPlatformDisplay(platform, native, NULL);
-  }
-  else if (strstr(early_exts, "EGL_EXT_platform_base") != NULL &&
-      g_dynprocs.eglGetPlatformDisplayEXT)
-  {
-    DEBUG_INFO("Using eglGetPlatformDisplayEXT");
-    this->display = g_dynprocs.eglGetPlatformDisplayEXT(platform, native, NULL);
-  }
-  else
-  {
-    DEBUG_INFO("Using eglGetDisplay");
-    this->display = eglGetDisplay(native);
-  }
 
+  this->display = app_getEGLDisplay();
   if (this->display == EGL_NO_DISPLAY)
-  {
-    DEBUG_ERROR("eglGetDisplay failed");
     return false;
-  }
 
   int maj, min;
   if (!eglInitialize(this->display, &maj, &min))
@@ -639,7 +583,7 @@ bool egl_render_startup(void * opaque, SDL_Window * window)
   DEBUG_INFO("EGL APIs  : %s", eglQueryString(this->display, EGL_CLIENT_APIS));
   DEBUG_INFO("Extensions: %s", client_exts);
 
-  if (g_dynprocs.glEGLImageTargetTexture2DOES)
+  if (g_egl_dynProcs.glEGLImageTargetTexture2DOES)
   {
     if (strstr(client_exts, "EGL_EXT_image_dma_buf_import") != NULL)
     {
@@ -697,7 +641,7 @@ bool egl_render_startup(void * opaque, SDL_Window * window)
   return true;
 }
 
-bool egl_render(void * opaque, SDL_Window * window, LG_RendererRotate rotate)
+bool egl_render(void * opaque, LG_RendererRotate rotate)
 {
   struct Inst * this = (struct Inst *)opaque;
 

client/renderers/EGL/texture.c

@@ -20,7 +20,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 #include "texture.h"
 #include "common/debug.h"
 #include "common/framebuffer.h"
-#include "dynprocs.h"
+#include "egl_dynprocs.h"
 #include "egldebug.h"
 
 #include <stdlib.h>
@@ -393,7 +393,7 @@ bool egl_texture_update_from_dma(EGL_Texture * texture, const FrameBuffer * fram
 
   /* bind the texture and initiate the transfer */
   glBindTexture(GL_TEXTURE_2D, texture->tex);
-  g_dynprocs.glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image);
+  g_egl_dynProcs.glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image);
 
   /* wait for completion */
   framebuffer_wait(frame, texture->height * texture->stride);

client/renderers/OpenGL/opengl.c

@@ -177,7 +177,7 @@ enum ConfigStatus
 };
 
 static void deconfigure(struct Inst * this);
-static enum ConfigStatus configure(struct Inst * this, SDL_Window *window);
+static enum ConfigStatus configure(struct Inst * this);
 static void update_mouse_shape(struct Inst * this, bool * newShape);
 static bool draw_frame(struct Inst * this);
 static void draw_mouse(struct Inst * this);
@@ -235,8 +235,11 @@ bool opengl_create(void ** opaque, const LG_RendererParams params)
   return true;
 }
 
-bool opengl_initialize(void * opaque, Uint32 * sdlFlags)
+bool opengl_initialize(void * opaque)
 {
+  //FIXME
+  return false;
+#if 0
   struct Inst * this = (struct Inst *)opaque;
   if (!this)
     return false;
@@ -252,6 +255,7 @@ bool opengl_initialize(void * opaque, Uint32 * sdlFlags)
   SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE        , 8);
   SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE         , 8);
   return true;
+#endif
 }
 
 void opengl_deinitialize(void * opaque)
@@ -492,16 +496,17 @@ void bitmap_to_texture(LG_FontBitmap * bitmap, GLuint texture)
   glBindTexture(GL_TEXTURE_2D, 0);
 }
 
-bool opengl_render_startup(void * opaque, SDL_Window * window)
+bool opengl_render_startup(void * opaque)
 {
+  //FIXME
+  return false;
+#if 0
+
   struct Inst * this = (struct Inst *)opaque;
 
-  this->glContext = SDL_GL_CreateContext(window);
+  this->glContext = app_getGLContext();
   if (!this->glContext)
-  {
-    DEBUG_ERROR("Failed to create the OpenGL context");
     return false;
-  }
 
   DEBUG_INFO("Vendor  : %s", glGetString(GL_VENDOR  ));
   DEBUG_INFO("Renderer: %s", glGetString(GL_RENDERER));
@@ -549,15 +554,16 @@ bool opengl_render_startup(void * opaque, SDL_Window * window)
   SDL_GL_SetSwapInterval(this->opt.vsync ? 1 : 0);
   this->renderStarted = true;
   return true;
+#endif
 }
 
-bool opengl_render(void * opaque, SDL_Window * window, LG_RendererRotate rotate)
+bool opengl_render(void * opaque, LG_RendererRotate rotate)
 {
   struct Inst * this = (struct Inst *)opaque;
   if (!this)
     return false;
 
-  switch(configure(this, window))
+  switch(configure(this))
   {
     case CONFIG_STATUS_ERROR:
       DEBUG_ERROR("configure failed");
@@ -657,11 +663,11 @@ bool opengl_render(void * opaque, SDL_Window * window, LG_RendererRotate rotate)
 
   if (this->opt.preventBuffer)
   {
-    SDL_GL_SwapWindow(window);
+    app_glSwapBuffers();
     glFinish();
   }
   else
-    SDL_GL_SwapWindow(window);
+    app_glSwapBuffers();
 
   this->mouseUpdate = false;
   return true;
@@ -879,7 +885,7 @@ static bool _check_gl_error(unsigned int line, const char * name)
   return true;
 }
 
-static enum ConfigStatus configure(struct Inst * this, SDL_Window *window)
+static enum ConfigStatus configure(struct Inst * this)
 {
   LG_LOCK(this->formatLock);
   if (!this->reconfigure)

client/src/app.c

@@ -28,7 +28,10 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 #include "kb.h"
 
 #include "common/debug.h"
+
 #include <stdarg.h>
+#include <math.h>
+#include <string.h>
 
 void app_alert(LG_MsgAlert type, const char * fmt, ...)
 {
@@ -98,9 +101,14 @@ bool app_getProp(LG_DSProperty prop, void * ret)
   return g_state.ds->getProp(prop, ret);
 }
 
-SDL_Window * app_getWindow(void)
+EGLNativeWindowType app_getEGLNativeWindow(void)
 {
-  return g_state.window;
+  return g_state.ds->getEGLNativeWindow();
+}
+
+EGLDisplay app_getEGLDisplay(void)
+{
+  return g_state.ds->getEGLDisplay();
 }
 
 bool app_inputEnabled(void)
@@ -280,7 +288,7 @@ void app_handleButtonPress(int button)
   g_cursor.buttons |= (1U << button);
 
   if (!spice_mouse_press(button))
-    DEBUG_ERROR("SDL_MOUSEBUTTONDOWN: failed to send message");
+    DEBUG_ERROR("app_handleButtonPress: failed to send message");
 }
 
 void app_handleButtonRelease(int button)
@@ -291,7 +299,7 @@ void app_handleButtonRelease(int button)
   g_cursor.buttons &= ~(1U << button);
 
   if (!spice_mouse_release(button))
-    DEBUG_ERROR("SDL_MOUSEBUTTONUP: failed to send message");
+    DEBUG_ERROR("app_handleButtonRelease: failed to send message");
 }
 
 void app_handleKeyPress(int sc)
@@ -325,7 +333,7 @@ void app_handleKeyPress(int sc)
       g_state.keyDown[sc] = true;
     else
     {
-      DEBUG_ERROR("SDL_KEYDOWN: failed to send message");
+      DEBUG_ERROR("app_handleKeyPress: failed to send message");
       return;
     }
   }
@@ -372,7 +380,7 @@ void app_handleKeyRelease(int sc)
     g_state.keyDown[sc] = false;
   else
   {
-    DEBUG_ERROR("SDL_KEYUP: failed to send message");
+    DEBUG_ERROR("app_handleKeyRelease: failed to send message");
     return;
   }
 }
@@ -613,3 +621,13 @@ void app_handleCloseEvent(void)
   if (!g_params.ignoreQuit || !g_cursor.inView)
     g_state.state = APP_STATE_SHUTDOWN;
 }
+
+void app_setFullscreen(bool fs)
+{
+  g_state.ds->setFullscreen(fs);
+}
+
+void app_glSwapBuffers(void)
+{
+  g_state.ds->glSwapBuffers();
+}

client/src/config.c

@@ -19,6 +19,8 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 
 #include "main.h"
 #include "config.h"
+#include "kb.h"
+
 #include "common/option.h"
 #include "common/debug.h"
 #include "common/stringutils.h"
@@ -26,10 +28,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 #include <sys/stat.h>
 #include <pwd.h>
 #include <unistd.h>
-
+#include <string.h>
-//FIXME: this should really not be included here and is an ugly hack to retain
-//backwards compatibility with the escape key scancode
-extern uint32_t sdl_to_xfree86[];
 
 // forwards
 static bool       optRendererParse   (struct Option * opt, const char * str);
@@ -41,6 +40,7 @@ static char *     optPosToString     (struct Option * opt);
 static bool       optSizeParse       (struct Option * opt, const char * str);
 static StringList optSizeValues      (struct Option * opt);
 static char *     optSizeToString    (struct Option * opt);
+static bool       optScancodeValidate(struct Option * opt, const char ** error);
 static char *     optScancodeToString(struct Option * opt);
 static bool       optRotateValidate  (struct Option * opt, const char ** error);
 
@@ -267,11 +267,12 @@ static struct Option options[] =
   {
     .module         = "input",
     .name           = "escapeKey",
-    .description    = "Specify the escape key, see https://wiki.libsdl.org/SDLScancodeLookup for valid values",
+    .description    = "Specify the escape key, see <linux/input-event-codes.h> for valid values",
     .shortopt       = 'm',
     .type           = OPTION_TYPE_INT,
-    .value.x_int    = SDL_SCANCODE_SCROLLLOCK,
+    .value.x_int    = KEY_SCROLLLOCK,
-    .toString       = optScancodeToString
+    .validator      = optScancodeValidate,
+    .toString       = optScancodeToString,
   },
   {
     .module         = "input",
@@ -532,9 +533,6 @@ bool config_load(int argc, char * argv[])
     g_params.alwaysShowCursor  = option_get_bool("spice", "alwaysShowCursor");
   }
 
-  //FIXME, this should be using linux keycodes
-  g_params.escapeKey = sdl_to_xfree86[g_params.escapeKey];
-
   return true;
 }
 
@@ -682,11 +680,20 @@ static char * optSizeToString(struct Option * opt)
   return str;
 }
 
+static bool optScancodeValidate(struct Option * opt, const char ** error)
+{
+  if (opt->value.x_int >= 0 && opt->value.x_int < KEY_MAX)
+    return true;
+
+  *error = "Out of range";
+  return false;
+}
+
 static char * optScancodeToString(struct Option * opt)
 {
   char * str;
   alloc_sprintf(&str, "%d = %s", opt->value.x_int,
-      SDL_GetScancodeName(opt->value.x_int));
+      xfree86_to_str[opt->value.x_int]);
   return str;
 }
 

client/src/core.c

@@ -26,6 +26,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 #include "common/debug.h"
 
 #include <assert.h>
+#include <math.h>
 
 #define RESIZE_TIMEOUT (10 * 1000) // 10ms
 

client/src/egl_dynprocs.c

@@ -17,16 +17,20 @@ this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 Place, Suite 330, Boston, MA 02111-1307 USA
 */
 
-#include "dynprocs.h"
+#ifdef ENABLE_EGL
 
-struct EGLDynProcs g_dynprocs = {0};
+#include "egl_dynprocs.h"
+
+struct EGLDynProcs g_egl_dynProcs = {0};
 
 void egl_dynProcsInit(void)
 {
-  g_dynprocs.eglGetPlatformDisplay = (eglGetPlatformDisplayEXT_t)
+  g_egl_dynProcs.eglGetPlatformDisplay = (eglGetPlatformDisplayEXT_t)
     eglGetProcAddress("eglGetPlatformDisplay");
-  g_dynprocs.eglGetPlatformDisplayEXT = (eglGetPlatformDisplayEXT_t)
+  g_egl_dynProcs.eglGetPlatformDisplayEXT = (eglGetPlatformDisplayEXT_t)
     eglGetProcAddress("eglGetPlatformDisplayEXT");
-  g_dynprocs.glEGLImageTargetTexture2DOES = (glEGLImageTargetTexture2DOES_t)
+  g_egl_dynProcs.glEGLImageTargetTexture2DOES = (glEGLImageTargetTexture2DOES_t)
     eglGetProcAddress("glEGLImageTargetTexture2DOES");
 };
+
+#endif

client/src/kb.c

@@ -145,4 +145,127 @@ const uint32_t xfree86_to_ps2[KEY_MAX] =
   [KEY_PRINT]            /* = USB  70 */ = 0x00E037,
 };
 
+const char * xfree86_to_str[KEY_MAX] =
+{
+  [KEY_RESERVED]         = "KEY_RESERVED",
+  [KEY_ESC]              = "KEY_ESC",
+  [KEY_1]                = "KEY_1",
+  [KEY_2]                = "KEY_2",
+  [KEY_3]                = "KEY_3",
+  [KEY_4]                = "KEY_4",
+  [KEY_5]                = "KEY_5",
+  [KEY_6]                = "KEY_6",
+  [KEY_7]                = "KEY_7",
+  [KEY_8]                = "KEY_8",
+  [KEY_9]                = "KEY_9",
+  [KEY_0]                = "KEY_0",
+  [KEY_MINUS]            = "KEY_MINUS",
+  [KEY_EQUAL]            = "KEY_EQUAL",
+  [KEY_BACKSPACE]        = "KEY_BACKSPACE",
+  [KEY_TAB]              = "KEY_TAB",
+  [KEY_Q]                = "KEY_Q",
+  [KEY_W]                = "KEY_W",
+  [KEY_E]                = "KEY_E",
+  [KEY_R]                = "KEY_R",
+  [KEY_T]                = "KEY_T",
+  [KEY_Y]                = "KEY_Y",
+  [KEY_U]                = "KEY_U",
+  [KEY_I]                = "KEY_I",
+  [KEY_O]                = "KEY_O",
+  [KEY_P]                = "KEY_P",
+  [KEY_LEFTBRACE]        = "KEY_LEFTBRACE",
+  [KEY_RIGHTBRACE]       = "KEY_RIGHTBRACE",
+  [KEY_ENTER]            = "KEY_ENTER",
+  [KEY_LEFTCTRL]         = "KEY_LEFTCTRL",
+  [KEY_A]                = "KEY_A",
+  [KEY_S]                = "KEY_S",
+  [KEY_D]                = "KEY_D",
+  [KEY_F]                = "KEY_F",
+  [KEY_G]                = "KEY_G",
+  [KEY_H]                = "KEY_H",
+  [KEY_J]                = "KEY_J",
+  [KEY_K]                = "KEY_K",
+  [KEY_L]                = "KEY_L",
+  [KEY_SEMICOLON]        = "KEY_SEMICOLON",
+  [KEY_APOSTROPHE]       = "KEY_APOSTROPHE",
+  [KEY_GRAVE]            = "KEY_GRAVE",
+  [KEY_LEFTSHIFT]        = "KEY_LEFTSHIFT",
+  [KEY_BACKSLASH]        = "KEY_BACKSLASH",
+  [KEY_Z]                = "KEY_Z",
+  [KEY_X]                = "KEY_X",
+  [KEY_C]                = "KEY_C",
+  [KEY_V]                = "KEY_V",
+  [KEY_B]                = "KEY_B",
+  [KEY_N]                = "KEY_N",
+  [KEY_M]                = "KEY_M",
+  [KEY_COMMA]            = "KEY_COMMA",
+  [KEY_DOT]              = "KEY_DOT",
+  [KEY_SLASH]            = "KEY_SLASH",
+  [KEY_RIGHTSHIFT]       = "KEY_RIGHTSHIFT",
+  [KEY_KPASTERISK]       = "KEY_KPASTERISK",
+  [KEY_LEFTALT]          = "KEY_LEFTALT",
+  [KEY_SPACE]            = "KEY_SPACE",
+  [KEY_CAPSLOCK]         = "KEY_CAPSLOCK",
+  [KEY_F1]               = "KEY_F1",
+  [KEY_F2]               = "KEY_F2",
+  [KEY_F3]               = "KEY_F3",
+  [KEY_F4]               = "KEY_F4",
+  [KEY_F5]               = "KEY_F5",
+  [KEY_F6]               = "KEY_F6",
+  [KEY_F7]               = "KEY_F7",
+  [KEY_F8]               = "KEY_F8",
+  [KEY_F9]               = "KEY_F9",
+  [KEY_F10]              = "KEY_F10",
+  [KEY_NUMLOCK]          = "KEY_NUMLOCK",
+  [KEY_SCROLLLOCK]       = "KEY_SCROLLLOCK",
+  [KEY_KP7]              = "KEY_KP7",
+  [KEY_KP8]              = "KEY_KP8",
+  [KEY_KP9]              = "KEY_KP9",
+  [KEY_KPMINUS]          = "KEY_KPMINUS",
+  [KEY_KP4]              = "KEY_KP4",
+  [KEY_KP5]              = "KEY_KP5",
+  [KEY_KP6]              = "KEY_KP6",
+  [KEY_KPPLUS]           = "KEY_KPPLUS",
+  [KEY_KP1]              = "KEY_KP1",
+  [KEY_KP2]              = "KEY_KP2",
+  [KEY_KP3]              = "KEY_KP3",
+  [KEY_KP0]              = "KEY_KP0",
+  [KEY_KPDOT]            = "KEY_KPDOT",
+  [KEY_102ND]            = "KEY_102ND",
+  [KEY_F11]              = "KEY_F11",
+  [KEY_F12]              = "KEY_F12",
+  [KEY_RO]               = "KEY_RO",
+  [KEY_HENKAN]           = "KEY_HENKAN",
+  [KEY_KATAKANAHIRAGANA] = "KEY_KATAKANAHIRAGANA",
+  [KEY_MUHENKAN]         = "KEY_MUHENKAN",
+  [KEY_KPENTER]          = "KEY_KPENTER",
+  [KEY_RIGHTCTRL]        = "KEY_RIGHTCTRL",
+  [KEY_KPSLASH]          = "KEY_KPSLASH",
+  [KEY_SYSRQ]            = "KEY_SYSRQ",
+  [KEY_RIGHTALT]         = "KEY_RIGHTALT",
+  [KEY_HOME]             = "KEY_HOME",
+  [KEY_UP]               = "KEY_UP",
+  [KEY_PAGEUP]           = "KEY_PAGEUP",
+  [KEY_LEFT]             = "KEY_LEFT",
+  [KEY_RIGHT]            = "KEY_RIGHT",
+  [KEY_END]              = "KEY_END",
+  [KEY_DOWN]             = "KEY_DOWN",
+  [KEY_PAGEDOWN]         = "KEY_PAGEDOWN",
+  [KEY_INSERT]           = "KEY_INSERT",
+  [KEY_DELETE]           = "KEY_DELETE",
+  [KEY_KPEQUAL]          = "KEY_KPEQUAL",
+  [KEY_PAUSE]            = "KEY_PAUSE",
+  [KEY_KPCOMMA]          = "KEY_KPCOMMA",
+  [KEY_HANGEUL]          = "KEY_HANGEUL",
+  [KEY_HANJA]            = "KEY_HANJA",
+  [KEY_YEN]              = "KEY_YEN",
+  [KEY_LEFTMETA]         = "KEY_LEFTMETA",
+  [KEY_RIGHTMETA]        = "KEY_RIGHTMETA",
+  [KEY_COMPOSE]          = "KEY_COMPOSE",
+  [KEY_F13]              = "KEY_F13",
+  [KEY_F14]              = "KEY_F14",
+  [KEY_F15]              = "KEY_F15",
+  [KEY_PRINT]            = "KEY_PRINT",
+};
+
 #endif

client/src/kb.h

@@ -21,3 +21,4 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 #include <stdint.h>
 
 extern const uint32_t xfree86_to_ps2[KEY_MAX];
+extern const char *   xfree86_to_str[KEY_MAX];

client/src/keybind.c

@@ -26,10 +26,12 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 
 #include "spice/spice.h"
 
+#include <stdio.h>
+
 static void bind_fullscreen(int sc, void * opaque)
 {
-  SDL_SetWindowFullscreen(g_state.window, g_params.fullscreen ? 0 : SDL_WINDOW_FULLSCREEN_DESKTOP);
   g_params.fullscreen = !g_params.fullscreen;
+  app_setFullscreen(g_params.fullscreen);
 }
 
 static void bind_video(int sc, void * opaque)

client/src/main.c

@@ -22,7 +22,6 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 
 #include <getopt.h>
 #include <signal.h>
-#include <SDL2/SDL_syswm.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/mman.h>
@@ -53,6 +52,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 #include "keybind.h"
 #include "clipboard.h"
 #include "ll.h"
+#include "egl_dynprocs.h"
 
 // forwards
 static int cursorThread(void * unused);
@@ -63,7 +63,6 @@ static LGEvent  *e_frame   = NULL;
 static LGThread *t_spice   = NULL;
 static LGThread *t_render  = NULL;
 static LGThread *t_cursor  = NULL;
-static SDL_Cursor *cursor  = NULL;
 
 struct AppState g_state;
 struct CursorState g_cursor;
@@ -89,14 +88,14 @@ static void lgInit(void)
 
   // if spice is not in use, hide the local cursor
   if (!app_inputEnabled() && g_params.hideMouse)
-    SDL_ShowCursor(SDL_DISABLE);
+    g_state.ds->showPointer(false);
   else
-    SDL_ShowCursor(SDL_ENABLE);
+    g_state.ds->showPointer(true);
 }
 
 static int renderThread(void * unused)
 {
-  if (!g_state.lgr->render_startup(g_state.lgrData, g_state.window))
+  if (!g_state.lgr->render_startup(g_state.lgrData))
   {
     g_state.state = APP_STATE_SHUTDOWN;
 
@@ -129,7 +128,7 @@ static int renderThread(void * unused)
       atomic_compare_exchange_weak(&g_state.lgrResize, &resize, 0);
     }
 
-    if (!g_state.lgr->render(g_state.lgrData, g_state.window, g_params.winRotate))
+    if (!g_state.lgr->render(g_state.lgrData, g_params.winRotate))
       break;
 
     if (g_params.showFPS)
@@ -158,8 +157,7 @@ static int renderThread(void * unused)
 
     if (!g_state.resizeDone && g_state.resizeTimeout < microtime())
     {
-      SDL_SetWindowSize(
+      g_state.ds->setWindowSize(
-        g_state.window,
         g_state.dstRect.w,
         g_state.dstRect.h
       );
@@ -347,7 +345,6 @@ int main_frameThread(void * unused)
   if (useDMA)
     DEBUG_INFO("Using DMA buffer support");
 
-  SDL_SetThreadPriority(SDL_THREAD_PRIORITY_HIGH);
   lgWaitEvent(e_startup, TIMEOUT_INFINITE);
   if (g_state.state != APP_STATE_RUNNING)
     return 0;
@@ -404,7 +401,7 @@ int main_frameThread(void * unused)
       break;
     }
 
-    KVMFRFrame * frame       = (KVMFRFrame *)msg.mem;
+    KVMFRFrame * frame = (KVMFRFrame *)msg.mem;
     struct DMAFrameInfo *dma = NULL;
 
     if (!g_state.formatValid || frame->formatVer != formatVer)
@@ -473,7 +470,7 @@ int main_frameThread(void * unused)
       g_state.srcSize.y = lgrFormat.height;
       g_state.haveSrcSize = true;
       if (g_params.autoResize)
-        SDL_SetWindowSize(g_state.window, lgrFormat.width, lgrFormat.height);
+        g_state.ds->setWindowSize(lgrFormat.width, lgrFormat.height);
 
       g_cursor.guest.dpiScale = frame->mouseScalePercent;
       core_updatePositionInfo();
@@ -572,20 +569,6 @@ int spiceThread(void * arg)
   return 0;
 }
 
-int eventFilter(void * userdata, SDL_Event * event)
-{
-  if (g_state.ds->eventFilter(event))
-    return 0;
-
-  // always include the default handler (SDL) for any unhandled events
-  if (g_state.ds != LG_DisplayServers[0])
-    if (LG_DisplayServers[0]->eventFilter(event))
-      return 0;
-
-  // consume all events
-  return 0;
-}
-
 void intHandler(int sig)
 {
   switch(sig)
@@ -607,7 +590,7 @@ void intHandler(int sig)
   }
 }
 
-static bool tryRenderer(const int index, const LG_RendererParams lgrParams, Uint32 * sdlFlags)
+static bool tryRenderer(const int index, const LG_RendererParams lgrParams)
 {
   const LG_Renderer *r = LG_Renderers[index];
 
@@ -623,7 +606,7 @@ static bool tryRenderer(const int index, const LG_RendererParams lgrParams, Uint
     return false;
 
   // initialize the renderer
-  if (!r->initialize(g_state.lgrData, sdlFlags))
+  if (!r->initialize(g_state.lgrData))
   {
     r->deinitialize(g_state.lgrData);
     return false;
@@ -633,14 +616,6 @@ static bool tryRenderer(const int index, const LG_RendererParams lgrParams, Uint
   return true;
 }
 
-static void initSDLCursor(void)
-{
-  const uint8_t data[4] = {0xf, 0x9, 0x9, 0xf};
-  const uint8_t mask[4] = {0xf, 0xf, 0xf, 0xf};
-  cursor = SDL_CreateCursor(data, mask, 8, 4, 4, 0);
-  SDL_SetCursor(cursor);
-}
-
 static int lg_run(void)
 {
   memset(&g_state, 0, sizeof(g_state));
@@ -649,16 +624,9 @@ static int lg_run(void)
        if (g_cursor.sens < -9) g_cursor.sens = -9;
   else if (g_cursor.sens >  9) g_cursor.sens =  9;
 
-  // try to early detect the platform
-  SDL_SYSWM_TYPE subsystem = SDL_SYSWM_UNKNOWN;
-       if (getenv("WAYLAND_DISPLAY")) subsystem = SDL_SYSWM_WAYLAND;
-  else if (getenv("DISPLAY"        )) subsystem = SDL_SYSWM_X11;
-  else
-    DEBUG_WARN("Unknown subsystem, falling back to SDL default");
-
   // search for the best displayserver ops to use
   for(int i = 0; i < LG_DISPLAYSERVER_COUNT; ++i)
-    if (LG_DisplayServers[i]->subsystem == subsystem)
+    if (LG_DisplayServers[i]->probe())
     {
       g_state.ds = LG_DisplayServers[i];
       break;
@@ -666,30 +634,6 @@ static int lg_run(void)
 
   assert(g_state.ds);
 
-  // set any null methods to the fallback
-#define SET_FALLBACK(x) \
-  if (!g_state.ds->x) g_state.ds->x = LG_DisplayServers[0]->x;
-  SET_FALLBACK(earlyInit);
-  SET_FALLBACK(getProp);
-  SET_FALLBACK(init);
-  SET_FALLBACK(startup);
-  SET_FALLBACK(shutdown);
-  SET_FALLBACK(free);
-  SET_FALLBACK(eventFilter);
-  SET_FALLBACK(showPointer);
-  SET_FALLBACK(grabPointer);
-  SET_FALLBACK(ungrabKeyboard);
-  SET_FALLBACK(warpPointer);
-  SET_FALLBACK(realignPointer);
-  SET_FALLBACK(isValidPointerPos);
-  SET_FALLBACK(inhibitIdle);
-  SET_FALLBACK(uninhibitIdle);
-  SET_FALLBACK(cbInit);
-  SET_FALLBACK(cbNotice);
-  SET_FALLBACK(cbRelease);
-  SET_FALLBACK(cbRequest);
-#undef SET_FALLBACK
-
   // init the subsystem
   if (!g_state.ds->earlyInit())
   {
@@ -697,16 +641,7 @@ static int lg_run(void)
     return -1;
   }
 
-  // Allow screensavers for now: we will enable and disable as needed.
+  // override the SIGINIT handler so that we can tell the difference between
-  SDL_SetHint(SDL_HINT_VIDEO_ALLOW_SCREENSAVER, "1");
-
-  if (SDL_Init(SDL_INIT_VIDEO) < 0)
-  {
-    DEBUG_ERROR("SDL_Init Failed");
-    return -1;
-  }
-
-  // override SDL's SIGINIT handler so that we can tell the difference between
   // SIGINT and the user sending a close event, such as ALT+F4
   signal(SIGINT , intHandler);
   signal(SIGTERM, intHandler);
@@ -753,13 +688,11 @@ static int lg_run(void)
   LG_RendererParams lgrParams;
   lgrParams.showFPS     = g_params.showFPS;
   lgrParams.quickSplash = g_params.quickSplash;
-  Uint32 sdlFlags;
 
   if (g_params.forceRenderer)
   {
     DEBUG_INFO("Trying forced renderer");
-    sdlFlags = 0;
+    if (!tryRenderer(g_params.forceRendererIndex, lgrParams))
-    if (!tryRenderer(g_params.forceRendererIndex, lgrParams, &sdlFlags))
     {
       DEBUG_ERROR("Forced renderer failed to iniailize");
       return -1;
@@ -771,8 +704,7 @@ static int lg_run(void)
     // probe for a a suitable renderer
     for(unsigned int i = 0; i < LG_RENDERER_COUNT; ++i)
     {
-      sdlFlags = 0;
+      if (tryRenderer(i, lgrParams))
-      if (tryRenderer(i, lgrParams, &sdlFlags))
       {
         g_state.lgr = LG_Renderers[i];
         break;
@@ -786,59 +718,26 @@ static int lg_run(void)
     return -1;
   }
 
-  // all our ducks are in a line, create the window
+  const LG_DSInitParams params =
-  g_state.window = SDL_CreateWindow(
-    g_params.windowTitle,
-    g_params.center ? SDL_WINDOWPOS_CENTERED : g_params.x,
-    g_params.center ? SDL_WINDOWPOS_CENTERED : g_params.y,
-    g_params.w,
-    g_params.h,
-    (
-      SDL_WINDOW_HIDDEN |
-      (g_params.allowResize ? SDL_WINDOW_RESIZABLE  : 0) |
-      (g_params.borderless  ? SDL_WINDOW_BORDERLESS : 0) |
-      (g_params.maximize    ? SDL_WINDOW_MAXIMIZED  : 0) |
-      sdlFlags
-    )
-  );
-
-  if (g_state.window == NULL)
   {
-    DEBUG_ERROR("Could not create an SDL window: %s\n", SDL_GetError());
+    .title               = g_params.windowTitle,
-    return 1;
+    .x                   = g_params.x,
-  }
+    .y                   = g_params.y,
+    .w                   = g_params.w,
+    .h                   = g_params.h,
+    .center              = g_params.center,
+    .fullscreen          = g_params.fullscreen,
+    .resizable           = g_params.allowResize,
+    .borderless          = g_params.borderless,
+    .maximize            = g_params.maximize,
+    .minimizeOnFocusLoss = g_params.minimizeOnFocusLoss
+  };
 
-  SDL_VERSION(&g_state.wminfo.version);
+  g_state.ds->init(params);
-  if (!SDL_GetWindowWMInfo(g_state.window, &g_state.wminfo))
-  {
-    DEBUG_ERROR("Could not get SDL window information %s", SDL_GetError());
-    return -1;
-  }
-
-  // enable WM events
-  SDL_EventState(SDL_SYSWMEVENT, SDL_ENABLE);
-
-  g_state.ds->init(&g_state.wminfo);
-
-  // now init has been done we can show the window, doing this before init for
-  // X11 causes us to miss the first focus event
-  SDL_ShowWindow(g_state.window);
-
-  SDL_SetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS,
-      g_params.minimizeOnFocusLoss ? "1" : "0");
-
-  if (g_params.fullscreen)
-    SDL_SetWindowFullscreen(g_state.window, SDL_WINDOW_FULLSCREEN_DESKTOP);
-
-  if (!g_params.center)
-    SDL_SetWindowPosition(g_state.window, g_params.x, g_params.y);
 
   if (g_params.noScreensaver)
     g_state.ds->inhibitIdle();
 
-  // ensure the initial window size is stored in the state
-  SDL_GetWindowSize(g_state.window, &g_state.windowW, &g_state.windowH);
-
   // ensure renderer viewport is aware of the current window size
   core_updatePositionInfo();
 
@@ -855,8 +754,6 @@ static int lg_run(void)
 
   keybind_register();
 
-  initSDLCursor();
-
   // setup the startup condition
   if (!(e_startup = lgCreateEvent(false, 0)))
   {
@@ -880,10 +777,6 @@ static int lg_run(void)
     return -1;
   }
 
-  // ensure mouse acceleration is identical in server mode
-  SDL_SetHintWithPriority(SDL_HINT_MOUSE_RELATIVE_MODE_WARP, "1", SDL_HINT_OVERRIDE);
-  SDL_SetEventFilter(eventFilter, NULL);
-
   // wait for startup to complete so that any error messages below are output at
   // the end of the output
   lgWaitEvent(e_startup, TIMEOUT_INFINITE);
@@ -906,7 +799,7 @@ static int lg_run(void)
 
   /* this short timeout is to allow the LGMP host to update the timestamp before
    * we start checking for a valid session */
-  SDL_WaitEventTimeout(NULL, 200);
+  g_state.ds->wait(200);
 
   if (g_params.captureOnStart)
     core_setGrab(true);
@@ -942,7 +835,7 @@ restart:
       DEBUG_INFO("Continuing to wait...");
     }
 
-    SDL_WaitEventTimeout(NULL, 1000);
+    g_state.ds->wait(1000);
   }
 
   if (g_state.state != APP_STATE_RUNNING)
@@ -975,7 +868,7 @@ restart:
     {
       DEBUG_INFO("Waiting for you to upgrade the host application");
       while (g_state.state == APP_STATE_RUNNING && udata->version != KVMFR_VERSION)
-        SDL_WaitEventTimeout(NULL, 1000);
+        g_state.ds->wait(1000);
 
       if (g_state.state != APP_STATE_RUNNING)
         return -1;
@@ -1005,7 +898,7 @@ restart:
       g_state.state = APP_STATE_RESTART;
       break;
     }
-    SDL_WaitEventTimeout(NULL, 100);
+    g_state.ds->wait(100);
   }
 
   if (g_state.state == APP_STATE_RESTART)
@@ -1077,21 +970,9 @@ static void lg_shutdown(void)
     g_state.cbRequestList = NULL;
   }
 
-  if (g_state.window)
-  {
-    g_state.ds->free();
-    SDL_DestroyWindow(g_state.window);
-  }
-
-  if (cursor)
-    SDL_FreeCursor(cursor);
-
-  ivshmemClose(&g_state.shm);
-
-  // this must run last to ensure that we don't free any pointers still in use
   app_releaseAllKeybinds();
-
+  g_state.ds->free();
-  SDL_Quit();
+  ivshmemClose(&g_state.shm);
 }
 
 int main(int argc, char * argv[])
@@ -1110,6 +991,7 @@ int main(int argc, char * argv[])
 
   config_init();
   ivshmemOptionsInit();
+  egl_dynProcsInit();
 
   // early renderer setup for option registration
   for(unsigned int i = 0; i < LG_RENDERER_COUNT; ++i)

client/src/main.h

@@ -19,7 +19,6 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 
 #include <stdbool.h>
 #include <stdatomic.h>
-#include <SDL2/SDL.h>
 #include <linux/input.h>
 
 #include "dynamic/displayservers.h"
@@ -48,18 +47,18 @@ struct AppState
   bool                 stopVideo;
   bool                 ignoreInput;
   bool                 escapeActive;
-  SDL_Scancode         escapeAction;
+  int                  escapeAction;
   KeybindHandle        bindings[KEY_MAX];
   bool                 keyDown[KEY_MAX];
 
   bool                 haveSrcSize;
-  SDL_Point            windowPos;
+  struct Point         windowPos;
   int                  windowW, windowH;
   int                  windowCX, windowCY;
   LG_RendererRotate    rotate;
   bool                 focused;
   struct Border        border;
-  SDL_Point            srcSize;
+  struct Point         srcSize;
   LG_RendererRect      dstRect;
   bool                 posInfoValid;
   bool                 alignToGuest;
@@ -74,9 +73,6 @@ struct AppState
   size_t               cbXfer;
   struct ll          * cbRequestList;
 
-  SDL_SysWMinfo        wminfo;
-  SDL_Window         * window;
-
   struct IVSHMEM       shm;
   PLGMPClient          lgmp;
   PLGMPClientQueue     frameQueue;
@@ -124,7 +120,7 @@ struct AppParams
   bool              noScreensaver;
   bool              grabKeyboard;
   bool              grabKeyboardOnFocus;
-  SDL_Scancode      escapeKey;
+  int               escapeKey;
   bool              ignoreWindowsKeys;
   bool              showAlerts;
   bool              captureOnStart;

client/src/util.c

@@ -25,6 +25,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 #include <stdlib.h>
 #include <stdio.h>
 #include <assert.h>
+#include <math.h>
 
 bool util_fileGetContents(const char * filename, char ** buffer, size_t * length)
 {

common/include/common/types.h

@@ -20,6 +20,11 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 #ifndef _LG_TYPES_H_
 #define _LG_TYPES_H_
 
+struct Point
+{
+  int x, y;
+};
+
 struct DoublePoint
 {
   double x, y;