fix wayland csd, more doublebuffering fixes

src/backend/wayland.c

@@ -46,7 +46,7 @@ static void buffer_destroy(struct _MwLLWaylandShmBuffer* buffer);
 
 static void region_setup(MwLL handle);
 static void region_invalidate(MwLL handle);
-
+static void update_buffer(MwLL self, struct _MwLLWaylandShmBuffer* buffer);
 /* Get the registered interface from r, or NULL if it doesn't currently have it. */
 #define WAYLAND_GET_INTERFACE(handle, inter) shget(handle.wl_protocol_map, inter##_interface.name)
 
@@ -65,8 +65,11 @@ static void new_protocol(void* data, struct wl_registry* registry,
 		char* inter = malloc(strlen(interface) + 1);
 		strcpy(inter, interface);
 		shput(self->wayland.wl_protocol_map, inter, cb->setup(name, data));
+		/* we don't care for adding this protocol, we just use it to know if the compositor will let us have transparent surfaces */
+	} else if(strcmp(interface, "wp_alpha_modifier_v1") == 0) {
+		self->common.supports_transparency = MwTRUE;
 	} else {
-		/* printf("unknown interface %s\n", interface); */
+		// printf("unknown interface %s\n", interface);
 	}
 
 	WAYLAND_EVENT_OP_END(self);
@@ -1075,9 +1078,9 @@ static int event_loop(MwLL handle) {
 	if(!poll(&fd, 1, timeout.tv_nsec)) {
 		wl_display_cancel_read(wayland->display);
 
-		wl_surface_commit(wayland->framebuffer.surface);
+		update_buffer(handle, &wayland->framebuffer);
 		if(wayland->type == MWLL_WAYLAND_TOPLEVEL)
-			wl_surface_commit(wayland->backbuffer.surface);
+			update_buffer(handle, &wayland->backbuffer);
 		return 0;
 	}
 	wl_display_read_events(wayland->display);
@@ -1163,8 +1166,8 @@ static void xdg_surface_configure(
 	xdg_surface_ack_configure(xdg_surface, serial);
 
 	if(self->wayland.configured) {
-		wl_surface_commit(self->wayland.framebuffer.surface);
-		wl_surface_commit(self->wayland.backbuffer.surface);
+		update_buffer(self, &self->wayland.framebuffer);
+		update_buffer(self, &self->wayland.backbuffer);
 	}
 
 	self->wayland.configured = MwTRUE;
@@ -1735,13 +1738,17 @@ static void widget_setup(MwLL r, MwLL parent, int x, int y, int width, int heigh
 	if(parent != NULL) {
 		MwLLForceRender(parent);
 	}
+
+	if(!r->wayland.has_decorations) {
+		MwLLBeginDraw(r);
+		MwLLEndDraw(r);
+	}
 }
 static MwLL MwLLCreateImpl(MwLL parent, int x, int y, int width, int height) {
 	MwLL r;
 	r = malloc(sizeof(*r));
 	memset(r, 0, sizeof(*r));
 	MwLLCreateCommon(r);
-	r->common.supports_transparency = MwTRUE;
 
 	widget_setup(r, parent, x, y, width, height, MWLL_WAYLAND_UNKNOWN);
 
@@ -1956,8 +1963,6 @@ static void MwLLBeginDrawImpl(MwLL handle) {
 			free(px);
 		}
 		update_buffer(handle, &handle->wayland.backbuffer);
-
-		wl_surface_commit(handle->wayland.backbuffer.surface);
 	}
 	handle->wayland.selected_cairo = handle->wayland.front_cairo;
 }
@@ -1976,7 +1981,7 @@ static void MwLLPolygonImpl(MwLL handle, MwPoint* points, int points_count, MwLL
 
 	clip(handle);
 
-	cairo_set_source_rgb(handle->wayland.front_cairo, color->common.red / 255.0, color->common.green / 255.0, color->common.blue / 255.0);
+	cairo_set_source_rgba(handle->wayland.front_cairo, color->common.red / 255.0, color->common.green / 255.0, color->common.blue / 255.0, 1.0);
 	cairo_new_path(handle->wayland.front_cairo);
 	for(i = 0; i < points_count; i++) {
 		if(i == 0) {
@@ -1999,7 +2004,7 @@ static void MwLLLineImpl(MwLL handle, MwPoint* points, MwLLColor color) {
 
 	cairo_set_antialias(handle->wayland.front_cairo, CAIRO_ANTIALIAS_NONE);
 	cairo_set_line_cap(handle->wayland.front_cairo, CAIRO_LINE_CAP_SQUARE);
-	cairo_set_source_rgb(handle->wayland.front_cairo, color->common.red / 255.0, color->common.green / 255.0, color->common.blue / 255.0);
+	cairo_set_source_rgba(handle->wayland.front_cairo, color->common.red / 255.0, color->common.green / 255.0, color->common.blue / 255.0, 1.0);
 	cairo_new_path(handle->wayland.front_cairo);
 	for(i = 0; i < 2; i++) {
 		if(i == 0) {
@@ -2109,6 +2114,8 @@ static void MwLLSetTitleImpl(MwLL handle, const char* title) {
 	}
 	if(!handle->wayland.has_decorations) {
 		strncpy(handle->wayland.title, title, 255);
+		MwLLBeginDraw(handle);
+		MwLLEndDraw(handle);
 	}
 }
 
@@ -2178,7 +2185,6 @@ static void MwLLDrawPixmapImpl(MwLL handle, MwRect* rect, MwLLPixmap pixmap) {
 	cairo_surface_destroy(cs);
 
 	MwLLForceRender(handle);
-	// update_buffer(handle, &handle->wayland.framebuffer);
 	wl_surface_damage(handle->wayland.framebuffer.surface, 0, 0, handle->wayland.ww, handle->wayland.wh);
 }
 static void MwLLSetIconImpl(MwLL handle, MwLLPixmap pixmap) {

src/draw.c

@@ -116,10 +116,10 @@ void MwDrawRectFading(MwWidget handle, MwRect* rect, MwLLColor color, int rounde
 	unsigned char* data	  = malloc(sz);
 	MwRect	       r	  = *rect;
 	int	       roundness  = MwGetInteger(handle, MwNroundness);
-	double	       h;
+	double	       div;
 	if(roundness == MwDEFAULT) roundness = DEFAULT_ROUNDNESS;
 	if(roundness >= MAX_ROUNDNESS) roundness = MAX_ROUNDNESS;
-	h = (roundness <= 10) ? 7. : 10.;
+	div = (roundness <= 10) ? 7. : 10.;
 	memset(data, 0, sz);
 
 	for(y = 0; y < rect->height; y++) {
@@ -138,8 +138,8 @@ void MwDrawRectFading(MwWidget handle, MwRect* rect, MwLLColor color, int rounde
 		int x = rect->x + (roundness + 1);
 		int y = rect->y + (roundness + 1);
 		for(i = 0; i < roundness; i++) {
-			double point  = ((i + (M_PI * 4)) / h);
-			double point2 = (((i + 1) + (M_PI * 4)) / h);
+			double point  = ((i + (M_PI * 4)) / div);
+			double point2 = (((i + 1) + (M_PI * 4)) / div);
 			int    x2     = x - (sin(point2) * roundness);
 			r.x	      = x - (sin(point) * roundness);
 			r.y	      = y + (cos(point) * roundness);
@@ -153,16 +153,16 @@ void MwDrawRectFading(MwWidget handle, MwRect* rect, MwLLColor color, int rounde
 			}
 		}
 		r = *rect;
-		r.x += roundness;
-		r.width -= (roundness * 2);
-		r.height -= 1;
+		r.x += roundness - 1;
+		r.width -= (roundness * 2) + 1;
+		r.height -= 2;
 		MwLLDrawPixmap(handle->lowlevel, &r, pixmap);
 		r = *rect;
 		x = (rect->x + rect->width) - (roundness + 2);
 		y = rect->y + (roundness + 1);
 		for(i = 0; i < roundness; i++) {
-			double point  = ((i + (M_PI * 4)) / h);
-			double point2 = (((i + 1) + (M_PI * 4)) / h);
+			double point  = ((i + (M_PI * 4)) / div);
+			double point2 = (((i + 1) + (M_PI * 4)) / div);
 			int    x2     = x + (sin(point2) * roundness);
 			r.x	      = x + (sin(point) * roundness);
 			r.y	      = y + (cos(point) * roundness);
@@ -207,13 +207,14 @@ void MwDrawFrame(MwWidget handle, MwRect* rect, MwLLColor color, int invert, int
 
 void MwDrawWidgetBack(MwWidget handle, MwRect* rect, MwLLColor color, int invert, int border) {
 	MwLLColor col;
+	MwBool	  rounded = handle->lowlevel->common.supports_transparency && MwGetInteger(handle, MwNroundness) != MwDEFAULT;
 
 	if(border) {
-		MwDrawFrame(handle, rect, color, invert, handle->lowlevel->common.supports_transparency);
+		MwDrawFrame(handle, rect, color, invert, rounded);
 	}
 	col = invert ? MwLightenColor(handle, color, -8, -8, -8) : color;
 	if(MwGetInteger(handle, MwNmodernLook)) {
-		MwDrawRectFading(handle, rect, col, handle->lowlevel->common.supports_transparency);
+		MwDrawRectFading(handle, rect, col, rounded);
 	} else {
 		MwDrawRect(handle, rect, col);
 	}
@@ -318,10 +319,10 @@ void MwDrawFrameEx(MwWidget handle, MwRect* rect, MwLLColor color, int invert, i
 		p[0].x = rect->x + roundness;
 		p[0].y = rect->y;
 
-		p[1].x = rect->x + rect->width - border - roundness;
+		p[1].x = rect->x + rect->width - border - roundness - 2;
 		p[1].y = rect->y;
 
-		p[2].x = rect->x + rect->width - border - roundness;
+		p[2].x = rect->x + rect->width - border - roundness - 2;
 		p[2].y = rect->y + border;
 
 		p[3].x = rect->x + border - roundness;
@@ -332,7 +333,6 @@ void MwDrawFrameEx(MwWidget handle, MwRect* rect, MwLLColor color, int invert, i
 
 		p[5].x = rect->x + roundness;
 		p[5].y = rect->y + rect->height - roundness;
-		MwLLPolygon(handle->lowlevel, p, 6, invert ? darker : lighter);
 
 		/* top right edge */
 		for(i = 0; i < BORDER_SMOOTHNESS; i += 2) {

src/widget/button.c

@@ -8,6 +8,7 @@ static int create(MwWidget handle) {
 	MwSetInteger(handle, MwNflat, 0);
 	MwSetInteger(handle, MwNpadding, 0);
 	MwSetInteger(handle, MwNfillArea, 1);
+	MwSetInteger(handle, MwNroundness, 5);
 
 	return 0;
 }

src/widget/checkbox.c

@@ -4,6 +4,7 @@ static int create(MwWidget handle) {
 	MwSetDefault(handle);
 
 	MwSetInteger(handle, MwNchecked, 0);
+	MwSetInteger(handle, MwNroundness, 5);
 
 	return 0;
 }

src/widget/combobox.c

@@ -14,6 +14,7 @@ static int create(MwWidget handle) {
 
 	MwSetInteger(handle, MwNareaShown, 6);
 	MwSetInteger(handle, MwNvalue, 0);
+	MwSetInteger(handle, MwNroundness, 5);
 
 	return 0;
 }

src/widget/entry.c

@@ -11,6 +11,7 @@ static int create(MwWidget handle) {
 	MwSetDefault(handle);
 
 	MwLLSetCursor(handle->lowlevel, &MwCursorText, &MwCursorTextMask);
+	MwSetInteger(handle, MwNroundness, 5);
 
 	return 0;
 }