feat: log output relevant data

Log the creation of outputs and simplify output-specific data on apply.

alloc.c

@@ -571,21 +571,6 @@ static void log_reuse(struct liftoff_output *output)
 	output->alloc_reuse++;
 }
 
-static void log_no_reuse(struct liftoff_output *output)
-{
-	if (!log_has(LIFTOFF_DEBUG)) {
-		return;
-	}
-
-	liftoff_log(LIFTOFF_DEBUG, "\nApply on output %p.", (void *) output);
-
-	if (output->alloc_reuse != 0) {
-		liftoff_log(LIFTOFF_DEBUG, "Stopped reusing previous plane allocation on output %p. "
-					"Had reused it %d times.", (void *) output, output->alloc_reuse);
-		output->alloc_reuse = 0;
-	}
-}
-
 bool liftoff_output_apply(struct liftoff_output *output, drmModeAtomicReq *req)
 {
 	struct liftoff_device *device;
@@ -604,7 +589,6 @@ bool liftoff_output_apply(struct liftoff_output *output, drmModeAtomicReq *req)
 		log_reuse(output);
 		return true;
 	}
-	log_no_reuse(output);
 
 	output_log_layers(output);
 

output.c

@@ -23,8 +23,11 @@ struct liftoff_output *liftoff_output_create(struct liftoff_device *device,
 		return NULL;
 	}
 
+	liftoff_log(LIFTOFF_DEBUG, "Creating output for CRTC id: %"PRIu32 " index: %zu", crtc_id, crtc_index);
+
 	output = calloc(1, sizeof(*output));
 	if (output == NULL) {
+		liftoff_log_errno(LIFTOFF_ERROR, "calloc");
 		return NULL;
 	}
 	output->device = device;
@@ -63,7 +66,15 @@ void output_log_layers(struct liftoff_output *output) {
 		return;
 	}
 
-	liftoff_log(LIFTOFF_DEBUG, "Layers on CRTC %"PRIu32":", output->crtc_id);
+	liftoff_log(LIFTOFF_DEBUG, "\n== Apply request for output %"PRIu32" ==", output->crtc_id);
+
+	if (output->alloc_reuse != 0) {
+		liftoff_log(LIFTOFF_DEBUG, "  Note: Reused previous plane allocation %d times.",
+					output->alloc_reuse);
+		output->alloc_reuse = 0;
+	}
+
+	liftoff_log(LIFTOFF_DEBUG, "Active layers:");
 
 	liftoff_list_for_each(layer, &output->layers, link) {
 		if (layer->force_composition) {