CShaderManager Class Reference

Shader manager: loads and caches shader programs. More...

#include <ShaderManager.h>

Classes
struct	CacheKey
struct	EffectCacheKey
	Key for effect cache lookups. More...
struct	EffectCacheKeyHash

Public Member Functions
	CShaderManager ()
	~CShaderManager ()
CShaderProgramPtr	LoadProgram (const char *name, const CShaderDefines &defines)
	Load a shader program. More...
CShaderTechniquePtr	LoadEffect (CStrIntern name, const CShaderDefines &defines1, const CShaderDefines &defines2)
	Load a shader effect. More...
CShaderTechniquePtr	LoadEffect (CStrIntern name)
	Load a shader effect, with default system defines (from CRenderer::GetSystemShaderDefines). More...
size_t	GetNumEffectsLoaded ()
	Returns the number of shader effects that are currently loaded. More...

Private Types
typedef boost::unordered_map < EffectCacheKey, CShaderTechniquePtr, EffectCacheKeyHash >	EffectCacheMap
typedef boost::unordered_map < VfsPath, std::set < boost::weak_ptr < CShaderProgram > > >	HotloadFilesMap

Private Member Functions
bool	NewProgram (const char *name, const CShaderDefines &defines, CShaderProgramPtr &program)
bool	NewEffect (const char *name, const CShaderDefines &defines, CShaderTechniquePtr &tech)
Status	ReloadChangedFile (const VfsPath &path)

Static Private Member Functions
static Status	ReloadChangedFileCB (void *param, const VfsPath &path)

Private Attributes
std::map< CacheKey, CShaderProgramPtr >	m_ProgramCache
EffectCacheMap	m_EffectCache
HotloadFilesMap	m_HotloadFiles
RelaxNGValidator	m_Validator

Detailed Description

Shader manager: loads and caches shader programs.

For a high-level overview of shaders and materials, see http://trac.wildfiregames.com/wiki/MaterialSystem

Definition at line 42 of file ShaderManager.h.

Member Typedef Documentation

typedef boost::unordered_map<EffectCacheKey, CShaderTechniquePtr, EffectCacheKeyHash> CShaderManager::EffectCacheMap

private

Definition at line 117 of file ShaderManager.h.

typedef boost::unordered_map<VfsPath, std::set<boost::weak_ptr<CShaderProgram> > > CShaderManager::HotloadFilesMap

private

Definition at line 121 of file ShaderManager.h.

Constructor & Destructor Documentation

CShaderManager::CShaderManager

(

)

Definition at line 44 of file ShaderManager.cpp.

CShaderManager::~CShaderManager

(

)

Definition at line 64 of file ShaderManager.cpp.

Member Function Documentation

size_t CShaderManager::GetNumEffectsLoaded

(

)

Returns the number of shader effects that are currently loaded.

Definition at line 552 of file ShaderManager.cpp.

CShaderTechniquePtr CShaderManager::LoadEffect	(	CStrIntern	name,
		const CShaderDefines &	defines1,
		const CShaderDefines &	defines2
	)

Load a shader effect.

Effects can be implemented via many techniques; this returns the best usable technique.

Parameters

name	name of effect XML specification (file is loaded from shaders/effects/${name}.xml)
defines1,defines2	key/value set of preprocessor definitions; defines2 has higher precedence

Returns

loaded technique, or empty technique on error

Definition at line 355 of file ShaderManager.cpp.

CShaderTechniquePtr CShaderManager::LoadEffect

(

CStrIntern

name

)

Load a shader effect, with default system defines (from CRenderer::GetSystemShaderDefines).

Definition at line 350 of file ShaderManager.cpp.

CShaderProgramPtr CShaderManager::LoadProgram	(	const char *	name,
		const CShaderDefines &	defines
	)

Load a shader program.

Parameters

name	name of shader XML specification (file is loaded from shaders/${name}.xml)
defines	key/value set of preprocessor definitions

Returns

loaded program, or null pointer on error

Definition at line 69 of file ShaderManager.cpp.

bool CShaderManager::NewEffect ( const char *  name, const CShaderDefines &  defines, CShaderTechniquePtr &  tech  )

private

Definition at line 380 of file ShaderManager.cpp.

bool CShaderManager::NewProgram ( const char *  name, const CShaderDefines &  defines, CShaderProgramPtr &  program  )

private

Definition at line 114 of file ShaderManager.cpp.

Status CShaderManager::ReloadChangedFile ( const VfsPath &  path )

private

Definition at line 562 of file ShaderManager.cpp.

Status CShaderManager::ReloadChangedFileCB ( void *  param, const VfsPath &  path  )

staticprivate

Definition at line 557 of file ShaderManager.cpp.

Member Data Documentation

EffectCacheMap CShaderManager::m_EffectCache

private

Definition at line 118 of file ShaderManager.h.

HotloadFilesMap CShaderManager::m_HotloadFiles

private

Definition at line 122 of file ShaderManager.h.

std::map<CacheKey, CShaderProgramPtr> CShaderManager::m_ProgramCache

private

Definition at line 94 of file ShaderManager.h.

RelaxNGValidator CShaderManager::m_Validator

private

Definition at line 125 of file ShaderManager.h.

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The documentation for this class was generated from the following files:

• /home/sathyam/0ad.svn/source/graphics/ShaderManager.h
• /home/sathyam/0ad.svn/source/graphics/ShaderManager.cpp