shithub: drawterm

Info  •  Files  •  Log  •  Branches

gui-wl: Fix clipped cursors

It seems like the pixels along the bottom and right edge of the cursor
are clipped off.  Work around this by allocating a larger surface than
needed, ensuring that the clipped pixels would have been transparent
anyway.

--- a/gui-wl/wl-util.c

+++ b/gui-wl/wl-util.c

@@ -54,7 +54,7 @@

 	depth = 4;

 	screensize = wl->monx * wl->mony * depth;

-	cursorsize = 16 * 16 * depth;

+	cursorsize = 32 * 32 * depth;

 	fd = wlcreateshm(screensize+cursorsize);

 	if(fd < 0)

@@ -90,7 +90,7 @@

 		wl_buffer_destroy(wl->cursorbuffer);

 	wl->screenbuffer = wl_shm_pool_create_buffer(wl->pool, 0, wl->dx, wl->dy, wl->dx*4, WL_SHM_FORMAT_XRGB8888);

-	wl->cursorbuffer = wl_shm_pool_create_buffer(wl->pool, size, 16, 16, 16*4, WL_SHM_FORMAT_ARGB8888);

+	wl->cursorbuffer = wl_shm_pool_create_buffer(wl->pool, size, 32, 32, 32*4, WL_SHM_FORMAT_ARGB8888);

 }

 enum {

@@ -113,15 +113,15 @@

 		clr[i] = c->clr[j]<<8 | c->clr[j+1];

 		set[i] = c->set[j]<<8 | c->set[j+1];

 	}

-	for(i=0; i < 16; i++){

-		for(j = 0; j < 16; j++){

-			pos = i*16 + j;

+	for(i=0; i < 32; i++){

+		for(j = 0; j < 32; j++){

+			pos = i*32 + j;

 			mask = (1<<16) >> j;

 			buf[pos] = Transparent;

-			if(clr[i] & mask)

+			if(i < 16 && clr[i] & mask)

 				buf[pos] = White;

-			if(set[i] & mask)

+			if(i < 16 && set[i] & mask)

 				buf[pos] = Black;

 		}

 	}

@@ -128,7 +128,7 @@

 	if(wl->cursorsurface == nil)

 		wl->cursorsurface = wl_compositor_create_surface(wl->compositor);

 	wl_surface_attach(wl->cursorsurface, wl->cursorbuffer, 0, 0);

-	wl_surface_damage(wl->cursorsurface, 0, 0, 16, 16);

+	wl_surface_damage(wl->cursorsurface, 0, 0, 32, 32);

 	wl_surface_commit(wl->cursorsurface);

 	wl_pointer_set_cursor(wl->pointer, wl->pointerserial, wl->cursorsurface, -c->offset.x, -c->offset.y);

 }