fix the whole mutex shito

fixes potential crash when resizing window

src/libui_sdl/libui/unix/area.c

@@ -3,6 +3,18 @@
 
 extern GThread* gtkthread;
 
+// notes:
+// - G_DECLARE_DERIVABLE/FINAL_INTERFACE() requires glib 2.44 and that's starting with debian stretch (testing) (GTK+ 3.18) and ubuntu 15.04 (GTK+ 3.14) - debian jessie has 2.42 (GTK+ 3.14)
+#define areaWidgetType (areaWidget_get_type())
+#define areaWidget(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), areaWidgetType, areaWidget))
+#define isAreaWidget(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), areaWidgetType))
+#define areaWidgetClass(class) (G_TYPE_CHECK_CLASS_CAST((class), areaWidgetType, areaWidgetClass))
+#define isAreaWidgetClass(class) (G_TYPE_CHECK_CLASS_TYPE((class), areaWidget))
+#define getAreaWidgetClass(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), areaWidgetType, areaWidgetClass))
+
+typedef struct areaWidget areaWidget;
+typedef struct areaWidgetClass areaWidgetClass;
+
 struct areaWidget {
 	GtkDrawingArea parent_instance;
 	uiArea *a;
@@ -131,22 +143,6 @@ static void loadAreaSize(uiArea *a, double *width, double *height)
 	}
 }
 
-void areaPreRedraw(areaWidget* widget)
-{
-    uiArea* a = widget->a;
-    if (!a->opengl) return;
-    
-    areaPreRedrawGL(a->glContext);
-}
-
-void areaPostRedraw(areaWidget* widget)
-{
-    uiArea* a = widget->a;
-    if (!a->opengl) return;
-    
-    areaPostRedrawGL(a->glContext);
-}
-
 static gboolean areaWidget_draw(GtkWidget *w, cairo_t *cr)
 {
 	areaWidget *aw = areaWidget(w);

src/libui_sdl/libui/unix/gl.c

@@ -6,6 +6,7 @@
 void* glXGetProcAddressARB(const GLubyte* name);
 
 extern GThread* gtkthread;
+extern GMutex glmutex;
 
 struct uiGLContext 
 {
@@ -15,8 +16,6 @@ struct uiGLContext
 	GdkGLContext *gctx;
 	int vermaj, vermin;
 	
-	GMutex mutex;
-	
 	int width, height;
 	int scale;
 	GLuint renderbuffer[2][2];
@@ -96,8 +95,6 @@ uiGLContext *createGLContext(GtkWidget* widget, int maj, int min)
 	areaAllocRenderbuffer(ctx);
 	ctx->backbuffer = 0;
 	
-	g_mutex_init(&ctx->mutex);
-	
 	ctx->widget = widget;
 	ctx->window = gdkwin;
 	ctx->gctx = gctx;
@@ -144,7 +141,7 @@ static void areaAllocRenderbuffer(uiGLContext* glctx)
     //    printf("FRAMEBUFFER IS BAD!! %04X\n", _glCheckFramebufferStatus(GL_FRAMEBUFFER));
 }
 
-static void areaRellocRenderbuffer(uiGLContext* glctx)
+static void areaReallocRenderbuffer(uiGLContext* glctx)
 {
     _glBindRenderbuffer(GL_RENDERBUFFER, glctx->renderbuffer[0][0]);
     _glRenderbufferStorage(GL_RENDERBUFFER, GL_RGB, glctx->width*glctx->scale, glctx->height*glctx->scale);
@@ -157,16 +154,6 @@ static void areaRellocRenderbuffer(uiGLContext* glctx)
     //_glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_STENCIL, glctx->width*glctx->scale, glctx->height*glctx->scale);
 }
 
-void areaPreRedrawGL(uiGLContext* glctx)
-{
-    g_mutex_lock(&glctx->mutex);
-}
-
-void areaPostRedrawGL(uiGLContext* glctx)
-{
-    g_mutex_unlock(&glctx->mutex);
-}
-
 void areaDrawGL(GtkWidget* widget, uiAreaDrawParams* dp, cairo_t* cr, uiGLContext* glctx)
 {
     int window_scale = gdk_window_get_scale_factor(glctx->window);
@@ -176,12 +163,14 @@ void areaDrawGL(GtkWidget* widget, uiAreaDrawParams* dp, cairo_t* cr, uiGLContex
         glctx->width = dp->AreaWidth;
         glctx->height = dp->AreaHeight;
         glctx->scale = window_scale;
-        areaRellocRenderbuffer(glctx);
+        areaReallocRenderbuffer(glctx);
+    }
+    else
+    {
+        gdk_cairo_draw_from_gl(cr, gtk_widget_get_window(widget), 
+                               glctx->renderbuffer[glctx->backbuffer][0], GL_RENDERBUFFER, 
+                               1, 0, 0, glctx->width*glctx->scale, glctx->height*glctx->scale);
     }
-    
-    gdk_cairo_draw_from_gl(cr, gtk_widget_get_window(widget), 
-                           glctx->renderbuffer[glctx->backbuffer][0], GL_RENDERBUFFER, 
-                           1, 0, 0, glctx->width*glctx->scale, glctx->height*glctx->scale);
 }
 
 int uiGLGetFramebuffer(uiGLContext* ctx)
@@ -215,7 +204,7 @@ void uiGLBegin(uiGLContext* ctx)
 {
     if (g_thread_self() != gtkthread)
     {
-        g_mutex_lock(&ctx->mutex);
+        g_mutex_lock(&glmutex);
     }
 }
 
@@ -223,7 +212,7 @@ void uiGLEnd(uiGLContext* ctx)
 {
     if (g_thread_self() != gtkthread)
     {
-        g_mutex_unlock(&ctx->mutex);
+        g_mutex_unlock(&glmutex);
     }
 }
 

src/libui_sdl/libui/unix/main.c

@@ -5,24 +5,16 @@ uiInitOptions options;
 
 // kind of a hack
 GThread* gtkthread;
-
 GMutex glmutex;
-int boub(GtkWidget* w);
-void baba(GtkWidget* w);
 
 static void _eventfilter(GdkEvent* evt, gpointer data)
 {
     if (evt->type == GDK_EXPOSE)
     {
-        GtkWidget* widget = gtk_get_event_widget(evt);
+        g_mutex_lock(&glmutex);
-        if (isAreaWidget(widget))
+        gtk_main_do_event(evt);
-        {
+        g_mutex_unlock(&glmutex);
-            areaWidget* area = areaWidget(widget);
+        return;
-            areaPreRedraw(area);
-            gtk_main_do_event(evt);
-            areaPostRedraw(area);
-            return;
-        }
     }
     
     gtk_main_do_event(evt);
@@ -48,6 +40,7 @@ const char *uiInit(uiInitOptions *o)
 	loadFutures();
 	
 	gtkthread = g_thread_self();
+	g_mutex_init(&glmutex);
 	
 	GList* iconlist = NULL;
 	iconlist = g_list_append(iconlist, gdk_pixbuf_new_from_resource("/org/kuriboland/melonDS/icon/melon_16x16.png", NULL));

src/libui_sdl/libui/unix/uipriv_unix.h

@@ -67,22 +67,5 @@ extern gboolean FUTURE_gtk_widget_path_iter_set_object_name(GtkWidgetPath *path,
 // gl.c
 extern uiGLContext *createGLContext(GtkWidget* widget, int maj, int min);
 extern void freeGLContext(uiGLContext* glctx);
-extern void areaPreRedrawGL(uiGLContext* glctx);
 extern void areaDrawGL(GtkWidget* widget, uiAreaDrawParams* dp, cairo_t* cr, uiGLContext* glctx);
-extern void areaPostRedrawGL(uiGLContext* glctx);
-
-// notes:
-// - G_DECLARE_DERIVABLE/FINAL_INTERFACE() requires glib 2.44 and that's starting with debian stretch (testing) (GTK+ 3.18) and ubuntu 15.04 (GTK+ 3.14) - debian jessie has 2.42 (GTK+ 3.14)
-#define areaWidgetType (areaWidget_get_type())
-#define areaWidget(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), areaWidgetType, areaWidget))
-#define isAreaWidget(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), areaWidgetType))
-#define areaWidgetClass(class) (G_TYPE_CHECK_CLASS_CAST((class), areaWidgetType, areaWidgetClass))
-#define isAreaWidgetClass(class) (G_TYPE_CHECK_CLASS_TYPE((class), areaWidget))
-#define getAreaWidgetClass(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), areaWidgetType, areaWidgetClass))
-
-typedef struct areaWidget areaWidget;
-typedef struct areaWidgetClass areaWidgetClass;
-
-extern void areaPreRedraw(areaWidget* widget);
-extern void areaPostRedraw(areaWidget* widget);
 

src/libui_sdl/main.cpp

@@ -430,12 +430,6 @@ void GLScreen_DrawScreen()
     uiGLSwapBuffers(GLContext);
 }
 
-void norp(void* data)
-{
-    uiGLMakeContextCurrent(GLContext);
-    GLScreen_DrawScreen();
-}
-
 void MicLoadWav(char* name)
 {
     SDL_AudioSpec format;