GFXShader* ShaderGen::getShader( const MaterialFeatureData &featureData, const GFXVertexFormat *vertexFormat, const Vector<GFXShaderMacro> *macros )
{
PROFILE_SCOPE( ShaderGen_GetShader );
const FeatureSet &features = featureData.codify();
// Build a description string from the features
// and vertex format combination ( and macros ).
String shaderDescription = vertexFormat->getDescription() + features.getDescription();
if ( macros && !macros->empty() )
{
String macroStr;
GFXShaderMacro::stringize( *macros, ¯oStr );
shaderDescription += macroStr;
}
// Generate a single 64bit hash from the description string.
//
// Don't get paranoid! This has 1 in 18446744073709551616
// chance for collision... it won't happen in this lifetime.
//
U64 hash = Torque::hash64( (const U8*)shaderDescription.c_str(), shaderDescription.length(), 0 );
hash = convertHostToLEndian(hash);
U32 high = (U32)( hash >> 32 );
U32 low = (U32)( hash & 0x00000000FFFFFFFF );
String cacheKey = String::ToString( "%x%x", high, low );
// return shader if exists
GFXShader *match = mProcShaders[cacheKey];
if ( match )
return match;
// if not, then create it
char vertFile[256];
char pixFile[256];
F32 pixVersion;
Vector<GFXShaderMacro> shaderMacros;
shaderMacros.push_back( GFXShaderMacro( "TORQUE_SHADERGEN" ) );
if ( macros )
shaderMacros.merge( *macros );
generateShader( featureData, vertFile, pixFile, &pixVersion, vertexFormat, cacheKey, shaderMacros );
GFXShader *shader = GFX->createShader();
shader->mInstancingFormat.copy( mInstancingFormat ); // TODO: Move to init() below!
if ( !shader->init( vertFile, pixFile, pixVersion, shaderMacros ) )
{
delete shader;
return NULL;
}
mProcShaders[cacheKey] = shader;
return shader;
}
GFXShader* ShaderData::_createShader( const Vector<GFXShaderMacro> ¯os )
{
F32 pixver = mPixVersion;
if ( mUseDevicePixVersion )
pixver = getMax( pixver, GFX->getPixelShaderVersion() );
// Enable shader error logging.
GFXShader::setLogging( true, true );
GFXShader *shader = GFX->createShader();
bool success = false;
// Initialize the right shader type.
switch( GFX->getAdapterType() )
{
case Direct3D9_360:
case Direct3D9:
{
success = shader->init( mDXVertexShaderName,
mDXPixelShaderName,
pixver,
macros );
break;
}
case OpenGL:
{
success = shader->init( mOGLVertexShaderName,
mOGLPixelShaderName,
pixver,
macros );
break;
}
default:
// Other device types are assumed to not support shaders.
success = false;
break;
}
// If we failed to load the shader then
// cleanup and return NULL.
if ( !success )
SAFE_DELETE( shader );
return shader;
}
GFXShader* ShaderData::_createShader( const Vector<GFXShaderMacro> ¯os )
{
F32 pixver = mPixVersion;
if ( mUseDevicePixVersion )
pixver = getMax( pixver, GFX->getPixelShaderVersion() );
// Enable shader error logging.
GFXShader::setLogging( true, true );
GFXShader *shader = GFX->createShader();
bool success = false;
Vector<String> samplers;
samplers.setSize(ShaderData::NumTextures);
for(int i = 0; i < ShaderData::NumTextures; ++i)
samplers[i] = mSamplerNames[i][0] == '$' ? mSamplerNames[i] : "$"+mSamplerNames[i];
// Initialize the right shader type.
switch( GFX->getAdapterType() )
{
case Direct3D9_360:
case Direct3D9:
case Direct3D11:
{
success = shader->init( mDXVertexShaderName,
mDXPixelShaderName,
pixver,
macros,
samplers);
break;
}
case OpenGL:
{
success = shader->init( mOGLVertexShaderName,
mOGLPixelShaderName,
pixver,
macros,
samplers);
break;
}
default:
// Other device types are assumed to not support shaders.
success = false;
break;
}
#if defined(TORQUE_DEBUG)
//Assert Sampler registers
const Vector<GFXShaderConstDesc>& descs = shader->getShaderConstDesc();
for(int i = 0; i < descs.size(); ++i)
{
if(descs[i].constType != GFXSCT_Sampler && descs[i].constType != GFXSCT_SamplerCube)
continue;
GFXShaderConstHandle *handle = shader->findShaderConstHandle(descs[i].name);
if(!handle || !handle->isValid())
continue;
int reg = handle->getSamplerRegister();
if( descs[i].name != samplers[reg] )
{
const char *err = avar("ShaderData(%s): samplerNames[%d] = \"%s\" are diferent to sampler in shader: %s : register(S%d)"
,getName(), reg, samplers[reg].c_str(), handle->getName().c_str(), reg);
Con::printf(err);
GFXAssertFatal(0, err);
}
}
#endif
// If we failed to load the shader then
// cleanup and return NULL.
if ( !success )
SAFE_DELETE( shader );
return shader;
}
