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52 lines
1.5 KiB
52 lines
1.5 KiB
5 years ago
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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose: .360 file creation of shaders
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//
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//=====================================================================================//
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#include "MakeGameData.h"
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#include "materialsystem/shader_vcs_version.h"
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#define SHADER_FILE_THRESHOLD 32*1024
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//-----------------------------------------------------------------------------
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// Get the preload data for a vcs file
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//-----------------------------------------------------------------------------
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bool GetPreloadData_VCS( const char *pFilename, CUtlBuffer &fileBufferIn, CUtlBuffer &preloadBufferOut )
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{
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ShaderHeader_t *pHeader = (ShaderHeader_t *)fileBufferIn.Base();
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unsigned int version = BigLong( pHeader->m_nVersion );
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// ensure caller's buffer is clean
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// caller determines preload size, via TellMaxPut()
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preloadBufferOut.Purge();
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unsigned int nPreloadSize;
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if ( fileBufferIn.TellMaxPut() <= SHADER_FILE_THRESHOLD )
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{
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// include the whole file
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nPreloadSize = fileBufferIn.TellMaxPut();
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}
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else
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{
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if ( version < SHADER_VCS_VERSION_NUMBER )
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{
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// not supporting old versions
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return false;
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}
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if ( version != SHADER_VCS_VERSION_NUMBER )
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{
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// bad version
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Msg( "Can't preload: '%s', expecting version %d got version %d\n", pFilename, SHADER_VCS_VERSION_NUMBER, version );
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return false;
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}
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nPreloadSize = sizeof( ShaderHeader_t ) + BigLong( pHeader->m_nNumStaticCombos ) * sizeof( StaticComboRecord_t );
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}
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preloadBufferOut.Put( fileBufferIn.Base(), nPreloadSize );
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return true;
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}
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