rtx: add vk_lights_dump command

It prints out light clusters debugging info.

ref_vk/vk_core.c

@@ -14,6 +14,7 @@
 #include "vk_studio.h"
 #include "vk_rtx.h"
 #include "vk_descriptor.h"
+#include "vk_light.h"
 #include "vk_nv_aftermath.h"
 
 #include "xash3d_types.h"
@@ -712,6 +713,8 @@ qboolean R_VkInit( void )
 	{
 		if (!VK_RayInit())
 			return false;
+
+		VK_LightsInit();
 	}
 
 	return true;
@@ -721,6 +724,7 @@ void R_VkShutdown( void )
 {
 	if (vk_core.rtx)
 	{
+		VK_LightsShutdown();
 		VK_RayShutdown();
 	}
 

ref_vk/vk_light.c

@@ -11,6 +11,28 @@
 #include <string.h>
 #include <ctype.h> // isalnum...
 
+static struct {
+	qboolean enabled;
+	char name_filter[256];
+} debug_dump_lights;
+
+static void debugDumpLights( void ) {
+	debug_dump_lights.enabled = true;
+	if (gEngine.Cmd_Argc() > 1) {
+		Q_strncpy(debug_dump_lights.name_filter, gEngine.Cmd_Argv(1), sizeof(debug_dump_lights.name_filter));
+	} else {
+		debug_dump_lights.name_filter[0] = '\0';
+	}
+}
+
+void VK_LightsInit( void ) {
+	gEngine.Cmd_AddCommand("vk_lights_dump", debugDumpLights, "Dump all light sources for next frame");
+}
+
+void VK_LightsShutdown( void ) {
+	gEngine.Cmd_RemoveCommand("vk_lights_dump");
+}
+
 vk_lights_t g_lights = {0};
 
 static int lookupTextureF( const char *fmt, ...) {
@@ -759,6 +781,8 @@ void VK_LightsFrameFinalize( void )
 {
 	const model_t* const world = gEngine.pfnGetModelByIndex( 1 );
 
+	debug_dump_lights.enabled = false;
+
 	if (g_lights.num_emissive_surfaces > UINT8_MAX) {
 		gEngine.Con_Printf(S_ERROR "Too many emissive surfaces found: %d; some areas will be dark\n", g_lights.num_emissive_surfaces);
 		g_lights.num_emissive_surfaces = UINT8_MAX;
@@ -868,6 +892,3 @@ void VK_LightsFrameFinalize( void )
 		/* 	exit(0); */
 	}
 }
-
-void VK_LightsShutdown( void ) {
-}

ref_vk/vk_light.h

@@ -54,6 +54,7 @@ typedef struct {
 
 extern vk_lights_t g_lights;
 
+void VK_LightsInit( void );
 void VK_LightsShutdown( void );
 
 void VK_LightsNewMap( void );