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 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 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 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
