/*
PHYSICAL_MEMORY_MAP.C

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	_physical_memory_allocate (0000)
001AD750 00a0:
	_physical_memory_verify (0000)
001AD7F0 0040:
	_physical_memory_free (0000)
001AD830 0010:
	_physical_memory_get_game_state_base_address (0000)
001AD840 0010:
	_physical_memory_get_tag_cache_base_address (0000)
001AD850 0010:
	_physical_memory_get_texture_cache_base_address (0000)
001AD860 0010:
	_physical_memory_get_sound_cache_base_address (0000)
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004D1074 0010:
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*/

/* ---------- headers */

#include "cseries.h"
#include "cseries_windows.h"
#include "cache/physical_memory_map.h"

/* ---------- constants */

#define GAME_STATE_BASE_ADDRESS 0x80061000
#define GAME_STATE_SIZE 0x345000
#define GAME_STATE_VERIFY_SIZE 0x305000
#define TAG_CACHE_BASE_ADDRESS 0x803A6000
#define TAG_CACHE_SIZE 0x1600000
#define TEXTURE_CACHE_SIZE 0x1600000
#define SOUND_CACHE_SIZE 0x400000

/* ---------- macros */

/* ---------- structures */

struct physical_memory_map_globals
{
	void *game_state_base_address;
	void *tag_cache_base_address;
	void *texture_cache_base_address;
	void *sound_cache_base_address;
};

/* ---------- prototypes */

/* ---------- globals */

static struct physical_memory_map_globals physical_memory_map_globals;

/* ---------- public code */

void physical_memory_allocate(void)
{
	physical_memory_map_globals.game_state_base_address = XPhysicalAlloc(GAME_STATE_SIZE, GAME_STATE_BASE_ADDRESS & 0x7FFFFFFF, 0, PAGE_READWRITE);
#line 46 "c:\\halo\\SOURCE\\cache\\physical_memory_map.c"
	match_assert(__FILE__, __LINE__, (unsigned long)physical_memory_map_globals.game_state_base_address==GAME_STATE_BASE_ADDRESS);

	physical_memory_map_globals.tag_cache_base_address = XPhysicalAlloc(TAG_CACHE_SIZE, TAG_CACHE_BASE_ADDRESS & 0x7FFFFFFF, 0, PAGE_READWRITE);
#line 50 "c:\\halo\\SOURCE\\cache\\physical_memory_map.c"
	match_assert(__FILE__, __LINE__, (unsigned long)physical_memory_map_globals.tag_cache_base_address==TAG_CACHE_BASE_ADDRESS);

	physical_memory_map_globals.texture_cache_base_address = XPhysicalAlloc(TEXTURE_CACHE_SIZE, -1, 0, PAGE_READWRITE | PAGE_WRITECOMBINE);
#line 55 "c:\\halo\\SOURCE\\cache\\physical_memory_map.c"
	match_assert(__FILE__, __LINE__, physical_memory_map_globals.texture_cache_base_address);

	physical_memory_map_globals.sound_cache_base_address = XPhysicalAlloc(SOUND_CACHE_SIZE, -1, 0, PAGE_READWRITE);
#line 58 "c:\\halo\\SOURCE\\cache\\physical_memory_map.c"
	match_assert(__FILE__, __LINE__, physical_memory_map_globals.sound_cache_base_address);
}

void physical_memory_verify(void)
{
	byte *address;
	unsigned long page_status;

	for (address = physical_memory_map_globals.tag_cache_base_address;
		address < (byte *)physical_memory_map_globals.tag_cache_base_address + TAG_CACHE_SIZE;
		address += 0x1000)
	{
		page_status = XQueryMemoryProtect(address);
#line 77 "c:\\halo\\SOURCE\\cache\\physical_memory_map.c"
		match_assert(__FILE__, __LINE__, page_status == PAGE_READWRITE);
	}

	for (address = physical_memory_map_globals.game_state_base_address;
		address < (byte *)physical_memory_map_globals.game_state_base_address + GAME_STATE_VERIFY_SIZE;
		address += 0x1000)
	{
		page_status = XQueryMemoryProtect(address);
#line 86 "c:\\halo\\SOURCE\\cache\\physical_memory_map.c"
		match_assert(__FILE__, __LINE__, page_status == PAGE_READWRITE);
	}
}

void physical_memory_free(void)
{
	if (physical_memory_map_globals.game_state_base_address)
		XPhysicalFree(physical_memory_map_globals.game_state_base_address);
	if (physical_memory_map_globals.tag_cache_base_address)
		XPhysicalFree(physical_memory_map_globals.tag_cache_base_address);
	if (physical_memory_map_globals.texture_cache_base_address)
		XPhysicalFree(physical_memory_map_globals.texture_cache_base_address);
	if (physical_memory_map_globals.sound_cache_base_address)
		XPhysicalFree(physical_memory_map_globals.sound_cache_base_address);
}

void *physical_memory_get_game_state_base_address(void)
{
	return physical_memory_map_globals.game_state_base_address;
}

void *physical_memory_get_tag_cache_base_address(void)
{
	return physical_memory_map_globals.tag_cache_base_address;
}

void *physical_memory_get_texture_cache_base_address(void)
{
	return physical_memory_map_globals.texture_cache_base_address;
}

void *physical_memory_get_sound_cache_base_address(void)
{
	return physical_memory_map_globals.sound_cache_base_address;
}

/* ---------- private code */