1 /**************************************************************************
2 *
3 * Copyright 2010 Luca Barbieri
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 **************************************************************************/
26
27 #include <memory>
28 #include "dxbc.h"
29 #include <d3d11shader.h>
30 #include <d3dcommon.h>
31
dxbc_parse(const void * data,int size)32 dxbc_container* dxbc_parse(const void* data, int size)
33 {
34 std::auto_ptr<dxbc_container> container(new dxbc_container());
35 container->data = data;
36 dxbc_container_header* header = (dxbc_container_header*)data;
37 uint32_t* chunk_offsets = (uint32_t*)(header + 1);
38 if(bswap_le32(header->fourcc) != FOURCC_DXBC)
39 return 0;
40 unsigned num_chunks = bswap_le32(header->chunk_count);
41 for(unsigned i = 0; i < num_chunks; ++i)
42 {
43 unsigned offset = bswap_le32(chunk_offsets[i]);
44 dxbc_chunk_header* chunk = (dxbc_chunk_header*)((char*)data + offset);
45 unsigned fourcc = bswap_le32(chunk->fourcc);
46 container->chunk_map[fourcc] = i;
47 container->chunks.push_back(chunk);
48 }
49 return container.release();
50 }
51
dxbc_find_chunk(const void * data,int size,unsigned fourcc)52 dxbc_chunk_header* dxbc_find_chunk(const void* data, int size, unsigned fourcc)
53 {
54 dxbc_container_header* header = (dxbc_container_header*)data;
55 uint32_t* chunk_offsets = (uint32_t*)(header + 1);
56 if(bswap_le32(header->fourcc) != FOURCC_DXBC)
57 return 0;
58 unsigned num_chunks = bswap_le32(header->chunk_count);
59 for(unsigned i = 0; i < num_chunks; ++i)
60 {
61 unsigned offset = bswap_le32(chunk_offsets[i]);
62 dxbc_chunk_header* chunk = (dxbc_chunk_header*)((char*)data + offset);
63 if(bswap_le32(chunk->fourcc) == fourcc)
64 return chunk;
65 }
66 return 0;
67 }
68
dxbc_parse_signature(dxbc_chunk_signature * sig,D3D11_SIGNATURE_PARAMETER_DESC ** params)69 int dxbc_parse_signature(dxbc_chunk_signature* sig, D3D11_SIGNATURE_PARAMETER_DESC** params)
70 {
71 unsigned count = bswap_le32(sig->count);
72 *params = (D3D11_SIGNATURE_PARAMETER_DESC*)malloc(sizeof(D3D11_SIGNATURE_PARAMETER_DESC) * count);
73
74 for (unsigned i = 0; i < count; ++i)
75 {
76 D3D11_SIGNATURE_PARAMETER_DESC& param = (*params)[i];
77 param.SemanticName = (char*)&sig->count + bswap_le32(sig->elements[i].name_offset);
78 param.SemanticIndex = bswap_le32(sig->elements[i].semantic_index);
79 param.SystemValueType = (D3D_NAME)bswap_le32(sig->elements[i].system_value_type);
80 param.ComponentType = (D3D_REGISTER_COMPONENT_TYPE)bswap_le32(sig->elements[i].component_type);
81 param.Register = bswap_le32(sig->elements[i].register_num);
82 param.Mask = sig->elements[i].mask;
83 param.ReadWriteMask = sig->elements[i].read_write_mask;
84 param.Stream = sig->elements[i].stream;
85 }
86 return count;
87 }
88