#pragma once

#include"k3.h"

#include"gl.h"

#include<cglm/vec2.h>
#include<cglm/frustum.h>
#include<cglm/cam.h>

#define GL_FROM_K3TEX(k3t) ((k3t) ? (k3t)->tex : 0)
#define GL_FROM_K3MARCHER(k3m) ((GLuint) (uintptr_t) (k3m))
#define GL_FROM_K3ARBVP(k3m) ((GLuint) (uintptr_t) (k3m))
#define GL_FROM_K3ARBFP(k3m) ((GLuint) (uintptr_t) (k3m))
#define GL_FROM_K3GLSL(k3m) ((GLuint) (uintptr_t) (k3m))

extern bool k3IsCore;

struct k3Tex {
	GLuint tex;
	int cubemap;
	uint32_t szX;
	uint32_t szY;
	uint32_t szZ;
	GLuint glInternalFormat;
	GLuint glExternalFormat;
	GLuint glInType;
	bool mipmap;
	
	// Asynchronous decoding
	uint8_t deferredRemaining;
	uint8_t *deferredData[6];
	struct k3Tex *deferredNext;
};

struct k3Storage {
	int16_t ref;
	void(*free)(struct k3Storage*);
};

struct k3StorageBasic {
	struct k3Storage;
	GLuint gl;
};

struct k3Offscreen {
	GLuint fbo;
	struct k3Tex *diffuse;
	struct k3Tex *depth;
	
	struct {
		uint8_t samples;
		GLuint fbo;
		GLuint rboDiffuse;
		GLuint rboDepth;
	} multisampling;
};

struct k3Mdl {
	struct {
		vec3 *pos;
		uint8_t *boneids;
		uint16_t *boneweights;
	} cpuSkinning;
	
	size_t verts;
	struct k3StorageBasic *vstore;
	struct k3StorageBasic *estore;
	
	uint16_t meshCount;
	struct k3Mesh *meshes;
	
	size_t boneCount;
	mat4 *invBind;
	uint8_t *boneParents;
	char *boneNames;
	
	uint16_t animCount;
	struct k3AnimationFountain **anims;
	
	vec3 aabb[2];
	
	int offV, offN, offC, offU, offB, offT;
	
	const char *debugname;
};