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/**************************************************************************
*
* Copyright 2010 Luca Barbieri
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef DXBC_H_
#define DXBC_H_
#include <stdint.h>
#include <vector>
#include <map>
#include <iostream>
#include "le32.h"
#define FOURCC(a, b, c, d) ((uint32_t)(uint8_t)(a) | ((uint32_t)(uint8_t)(b) << 8) | ((uint32_t)(uint8_t)(c) << 16) | ((uint32_t)(uint8_t)(d) << 24 ))
#define FOURCC_DXBC FOURCC('D', 'X', 'B', 'C')
#define FOURCC_RDEF FOURCC('R', 'D', 'E', 'F')
#define FOURCC_ISGN FOURCC('I', 'S', 'G', 'N')
#define FOURCC_OSGN FOURCC('O', 'S', 'G', 'N')
#define FOURCC_SHDR FOURCC('S', 'H', 'D', 'R')
#define FOURCC_SHEX FOURCC('S', 'H', 'E', 'X')
#define FOURCC_STAT FOURCC('S', 'T', 'A', 'T')
/* this is always little-endian! */
struct dxbc_chunk_header
{
unsigned fourcc;
unsigned size;
};
/* this is always little-endian! */
struct dxbc_chunk_signature : public dxbc_chunk_header
{
uint32_t count;
uint32_t unk;
struct
{
uint32_t name_offset;
uint32_t semantic_index;
uint32_t system_value_type;
uint32_t component_type;
uint32_t register_num;
uint8_t mask;
uint8_t read_write_mask;
uint8_t stream; /* TODO: guess! */
uint8_t unused;
} elements[];
};
struct dxbc_container
{
const void* data;
std::vector<dxbc_chunk_header*> chunks;
std::map<unsigned, unsigned> chunk_map;
};
dxbc_container* dxbc_parse(const void* data, int size);
std::ostream& operator <<(std::ostream& out, const dxbc_container& container);
dxbc_chunk_header* dxbc_find_chunk(const void* data, int size, unsigned fourcc);
static inline dxbc_chunk_header* dxbc_find_shader_bytecode(const void* data, int size)
{
dxbc_chunk_header* chunk;
chunk = dxbc_find_chunk(data, size, FOURCC_SHDR);
if(!chunk)
chunk = dxbc_find_chunk(data, size, FOURCC_SHEX);
return chunk;
}
static inline dxbc_chunk_signature* dxbc_find_signature(const void* data, int size, bool output)
{
return (dxbc_chunk_signature*)dxbc_find_chunk(data, size, output ? FOURCC_OSGN : FOURCC_ISGN);
}
struct _D3D11_SIGNATURE_PARAMETER_DESC;
typedef struct _D3D11_SIGNATURE_PARAMETER_DESC D3D11_SIGNATURE_PARAMETER_DESC;
int dxbc_parse_signature(dxbc_chunk_signature* sig, D3D11_SIGNATURE_PARAMETER_DESC** params);
#endif /* DXBC_H_ */
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