xash3d-fwgs/ref_vk/vk_light.h

#pragma once

#include "vk_const.h"

#include "xash3d_types.h"
#include "protocol.h"
#include "const.h"
#include "bspfile.h"

// TODO this should not be visible to outside
typedef struct {
	vec3_t emissive;
	qboolean set;
} vk_emissive_texture_table_t;

extern vk_emissive_texture_table_t g_emissive_texture_table[MAX_TEXTURES];

void VK_LightsLoadMap( void );

typedef struct {
	uint8_t num_dlights;
	uint8_t num_emissive_surfaces;
	uint8_t dlights[MAX_VISIBLE_DLIGHTS];
	uint8_t emissive_surfaces[MAX_VISIBLE_SURFACE_LIGHTS];
} vk_light_cluster_t;

typedef struct {
	vec3_t emissive;
	int surface_index;
} vk_emissive_surface_t;

typedef struct {
	int num_emissive_surfaces;
	vk_emissive_surface_t emissive_surfaces[256]; // indexed by uint8_t

	struct {
		int min_cell[3];
		int size[3];

		int num_cells;
		vk_light_cluster_t cells[MAX_LIGHT_CLUSTERS];

		// TODO make grid sparse, only provide data for non-empty cells
	} grid;
} vk_potentially_visible_lights_t;

extern vk_potentially_visible_lights_t g_lights;

void VK_LightsShutdown( void );