//------------------------------------------------------------------------------------------------------
handle TextureResourceGL::_DoGenerateTexture( const TextureProperty::TextrueSourceDataVector& vec )
{
handle hTex = -1;
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glGenTextures( 1, &hTex );
switch( _GetTextureType() )
{
case TextureProperty::TT_TEXTURE1D: ASSERT(false); break;
case TextureProperty::TT_TEXTURE2D:
{
glBindTexture( GL_TEXTURE_2D, hTex );
GLint format = _GLPixelFormat( _GetPixelFormat() );
glTexImage2D( GL_TEXTURE_2D, 0, format, vec[0]->m_Size.m_x, vec[0]->m_Size.m_y, 0, format,
_GLDataType( _GetPixelFormat() ), vec[0]->m_pData );
CHECK_GRAPHIC_SYSTEM_ERROR;
if( isMipMap() )glGenerateMipmap(GL_TEXTURE_2D);//生成mipmap
CHECK_GRAPHIC_SYSTEM_ERROR;
}break;
case TextureProperty::TT_TEXTURE3D: ASSERT(false); break;
case TextureProperty::TT_TEXTURECUBE:
{
glBindTexture( GL_TEXTURE_CUBE_MAP, hTex );
s_CurrentBind = hTex;
GLint format = _GLPixelFormat( _GetPixelFormat() );
GLint type = _GLDataType( _GetPixelFormat() );
glTexImage2D( GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, format, vec[0]->m_Size.m_x, vec[0]->m_Size.m_y, 0, format, type, vec[0]->m_pData );
CHECK_GRAPHIC_SYSTEM_ERROR;
if( isMipMap() )glGenerateMipmap(GL_TEXTURE_2D);//生成mipmap
CHECK_GRAPHIC_SYSTEM_ERROR;
glTexImage2D( GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, format, vec[1]->m_Size.m_x, vec[1]->m_Size.m_y, 0, format, type, vec[1]->m_pData );
CHECK_GRAPHIC_SYSTEM_ERROR;
if( isMipMap() )glGenerateMipmap(GL_TEXTURE_2D);//生成mipmap
CHECK_GRAPHIC_SYSTEM_ERROR;
glTexImage2D( GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 0, format, vec[2]->m_Size.m_x, vec[2]->m_Size.m_y, 0, format, type, vec[2]->m_pData );
CHECK_GRAPHIC_SYSTEM_ERROR;
if( isMipMap() )glGenerateMipmap(GL_TEXTURE_2D);//生成mipmap
CHECK_GRAPHIC_SYSTEM_ERROR;
glTexImage2D( GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, format, vec[3]->m_Size.m_x, vec[3]->m_Size.m_y, 0, format, type, vec[3]->m_pData );
CHECK_GRAPHIC_SYSTEM_ERROR;
if( isMipMap() )glGenerateMipmap(GL_TEXTURE_2D);//生成mipmap
CHECK_GRAPHIC_SYSTEM_ERROR;
glTexImage2D( GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, format, vec[4]->m_Size.m_x, vec[4]->m_Size.m_y, 0, format, type, vec[4]->m_pData );
CHECK_GRAPHIC_SYSTEM_ERROR;
if( isMipMap() )glGenerateMipmap(GL_TEXTURE_2D);//生成mipmap
CHECK_GRAPHIC_SYSTEM_ERROR;
glTexImage2D( GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, format, vec[5]->m_Size.m_x, vec[5]->m_Size.m_y, 0, format, type, vec[5]->m_pData );
CHECK_GRAPHIC_SYSTEM_ERROR;
if( isMipMap() )glGenerateMipmap(GL_TEXTURE_2D);//生成mipmap
CHECK_GRAPHIC_SYSTEM_ERROR;
}break;
default:ASSERT(false&&"Unkown texture type!");
}
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
return hTex;
}
//------------------------------------------------------------------------------------------------------
void TextureResourceGL::_DoSubstituteTextureBuffer( const BohgeEngine::vector2d& begin, const BohgeEngine::vector2d& size, const byte* const buffer )
{
ActiveTexture();
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
GLenum glformat, gltype, gltext;
gltext = _GLTextureType( _GetTextureType() );
glformat = _GLPixelFormat( _GetPixelFormat() );
gltype = _GLDataType( _GetPixelFormat() );
glTexSubImage2D( gltext, 0, begin.m_x, begin.m_y, size.m_x, size.m_y, glformat, gltype, buffer );
CHECK_GRAPHIC_SYSTEM_ERROR;
if ( isMipMap() )
{
glGenerateMipmap( gltext );
CHECK_GRAPHIC_SYSTEM_ERROR;
}
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
}
//------------------------------------------------------------------------------------------------------
void TextureResourceGL::_DoResize( const vector2d& size )
{
switch( _GetTextureType() )
{
case TextureProperty::TT_TEXTURE2D:
{
ActiveTexture();
GLint format = _GLPixelFormat( _GetPixelFormat() );
glTexImage2D( GL_TEXTURE_2D, 0, format, size.m_x, size.m_y, 0, format,
_GLDataType( _GetPixelFormat() ), NULL );
CHECK_GRAPHIC_SYSTEM_ERROR;
if( isMipMap() )glGenerateMipmap(GL_TEXTURE_2D);//生成mipmap
CHECK_GRAPHIC_SYSTEM_ERROR;
}break;
case TextureProperty::TT_TEXTURE1D:
case TextureProperty::TT_TEXTURE3D:
case TextureProperty::TT_TEXTURECUBE: ASSERT(false); break;
default:ASSERT(false&&"Unkown texture type!");
}
}
template<> _GLDataType _GetGLType<GfVec4d>()
{ return _GLDataType(GL_DOUBLE, GL_DOUBLE_VEC4); }
template<> _GLDataType _GetGLType<double>()
{ return _GLDataType(GL_DOUBLE, GL_DOUBLE); }
template<> _GLDataType _GetGLType<GfVec4f>()
{ return _GLDataType(GL_FLOAT, GL_FLOAT_VEC4); }
template<> _GLDataType _GetGLType<float>()
{ return _GLDataType(GL_FLOAT, GL_FLOAT); }
template<> _GLDataType _GetGLType<unsigned int>()
{ return _GLDataType(GL_UNSIGNED_INT, GL_UNSIGNED_INT); }
template<> _GLDataType _GetGLType<Hd_BSplinePatchIndex>()
{ return _GLDataType(GL_INT, GL_INT); }
template<> _GLDataType _GetGLType<int>()
{ return _GLDataType(GL_INT, GL_INT); }
template<> _GLDataType _GetGLType<unsigned short>()
{ return _GLDataType(GL_UNSIGNED_SHORT, GL_UNSIGNED_SHORT); }
template<> _GLDataType _GetGLType<short>()
{ return _GLDataType(GL_SHORT, GL_SHORT); }
template<> _GLDataType _GetGLType<char>()
{ return _GLDataType(GL_BYTE, GL_BYTE); }
template<> _GLDataType _GetGLType<bool>()
{ return _GLDataType(GL_BOOL, GL_BOOL); }
template<> _GLDataType _GetGLType<GfMatrix4f>()
{ return _GLDataType(GL_FLOAT, GL_FLOAT_MAT4); }
template<> _GLDataType _GetGLType<GfMatrix4d>()
{ return _GLDataType(GL_DOUBLE, GL_DOUBLE_MAT4); }
template<> _GLDataType _GetGLType<size_t>()
{ return _GLDataType(GL_UNSIGNED_INT64_NV, GL_UNSIGNED_INT64_NV); }
template<> _GLDataType _GetGLType<HdVec4f_2_10_10_10_REV>()
{ return _GLDataType(GL_INT_2_10_10_10_REV, GL_INT_2_10_10_10_REV); }
template<> _GLDataType _GetGLType<GfVec4i>()
{ return _GLDataType(GL_INT, GL_INT_VEC4); }
