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Diffstat (limited to 'public/scenefilecache/SceneImageFile.h')
| -rw-r--r-- | public/scenefilecache/SceneImageFile.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/public/scenefilecache/SceneImageFile.h b/public/scenefilecache/SceneImageFile.h new file mode 100644 index 0000000..26cce48 --- /dev/null +++ b/public/scenefilecache/SceneImageFile.h @@ -0,0 +1,58 @@ +//========= Copyright Valve Corporation, All rights reserved. ============// +// +// Purpose: A Scene Image file aggregates all the compiled binary VCD files into +// a single file. +// +//=====================================================================================// +#ifndef SCENE_IMAGE_FILE_H +#define SCENE_IMAGE_FILE_H +#ifdef _WIN32 +#pragma once +#endif + +#include "commonmacros.h" +#include "tier1/checksum_crc.h" + +#define SCENE_IMAGE_ID MAKEID( 'V','S','I','F' ) +#define SCENE_IMAGE_VERSION 2 + +// scene summary: cached calcs for commmon startup queries, variable sized +struct SceneImageSummary_t +{ + unsigned int msecs; + int numSounds; + int soundStrings[1]; // has numSounds +}; + +// stored sorted by crc filename for binary search +struct SceneImageEntry_t +{ + CRC32_t crcFilename; // expected to be normalized as scenes\???.vcd + int nDataOffset; // offset to dword aligned data from start + int nDataLength; + int nSceneSummaryOffset; // offset to summary +}; + +struct SceneImageHeader_t +{ + int nId; + int nVersion; + int nNumScenes; // number of scene files + int nNumStrings; // number of unique strings in table + int nSceneEntryOffset; + + inline const char *String( short iString ) + { + if ( iString < 0 || iString >= nNumStrings ) + { + Assert( 0 ); + return NULL; + } + + // access string table (after header) to access pool + unsigned int *pTable = (unsigned int *)((byte *)this + sizeof( SceneImageHeader_t )); + return (char *)this + pTable[iString]; + } +}; + +#endif // SCENE_IMAGE_FILE_H |