void FixedFuncPrograms::_updateParameter( GpuProgramParametersSharedPtr & programParameters, const String paramName, const void * value, const size_t sizeInBytes )
	{
		const GpuConstantDefinition& def = programParameters->getConstantDefinition(paramName);
		if (def.isFloat())
		{
			memcpy((programParameters->getFloatPointer(def.physicalIndex)), value, sizeInBytes);
		}
		else
		{
			memcpy((programParameters->getIntPointer(def.physicalIndex)), value, sizeInBytes);
		}
	}
    //-----------------------------------------------------------------------
    void GLSLESProgramPipeline::updateUniforms(GpuProgramParametersSharedPtr params, 
                                           uint16 mask, GpuProgramType fromProgType)
    {
        // Iterate through uniform reference list and update uniform values
        GLUniformReferenceIterator currentUniform = mGLUniformReferences.begin();
        GLUniformReferenceIterator endUniform = mGLUniformReferences.end();
#if OGRE_PLATFORM != OGRE_PLATFORM_NACL
        GLuint progID = 0;
        GLUniformCache* uniformCache=0;
        if(fromProgType == GPT_VERTEX_PROGRAM)
        {
            progID = getVertexProgram()->getGLProgramHandle();
            uniformCache = getVertexProgram()->getUniformCache();
        }
        else if(fromProgType == GPT_FRAGMENT_PROGRAM)
        {
            progID = mFragmentProgram->getGLProgramHandle();
            uniformCache = mFragmentProgram->getUniformCache();
        }

        for (;currentUniform != endUniform; ++currentUniform)
        {
            // Only pull values from buffer it's supposed to be in (vertex or fragment)
            // This method will be called twice, once for vertex program params, 
            // and once for fragment program params.
            if (fromProgType == currentUniform->mSourceProgType)
            {
                const GpuConstantDefinition* def = currentUniform->mConstantDef;
                if (def->variability & mask)
                {
                    GLsizei glArraySize = (GLsizei)def->arraySize;
                    bool shouldUpdate = true;
                    switch (def->constType)
                    {
                        case GCT_INT1:
                        case GCT_INT2:
                        case GCT_INT3:
                        case GCT_INT4:
                        case GCT_SAMPLER1D:
                        case GCT_SAMPLER1DSHADOW:
                        case GCT_SAMPLER2D:
                        case GCT_SAMPLER2DSHADOW:
                        case GCT_SAMPLER3D:
                        case GCT_SAMPLERCUBE:
#if OGRE_NO_GLES3_SUPPORT == 0
                        case GCT_SAMPLER2DARRAY:
#endif
                            shouldUpdate = uniformCache->updateUniform(currentUniform->mLocation,
                                                                        params->getIntPointer(def->physicalIndex),
                                                                        static_cast<GLsizei>(def->elementSize * def->arraySize * sizeof(int)));
                            break;
                        default:
                            shouldUpdate = uniformCache->updateUniform(currentUniform->mLocation,
                                                                        params->getFloatPointer(def->physicalIndex),
                                                                        static_cast<GLsizei>(def->elementSize * def->arraySize * sizeof(float)));
                            break;
                    }

                    if(!shouldUpdate)
                        continue;

                    // Get the index in the parameter real list
                    switch (def->constType)
                    {
                        case GCT_FLOAT1:
                            OGRE_CHECK_GL_ERROR(glProgramUniform1fvEXT(progID, currentUniform->mLocation, glArraySize, 
                                                                       params->getFloatPointer(def->physicalIndex)));
                            break;
                        case GCT_FLOAT2:
                            OGRE_CHECK_GL_ERROR(glProgramUniform2fvEXT(progID, currentUniform->mLocation, glArraySize, 
                                                                       params->getFloatPointer(def->physicalIndex)));
                            break;
                        case GCT_FLOAT3:
                            OGRE_CHECK_GL_ERROR(glProgramUniform3fvEXT(progID, currentUniform->mLocation, glArraySize, 
                                                                       params->getFloatPointer(def->physicalIndex)));
                            break;
                        case GCT_FLOAT4:
                            OGRE_CHECK_GL_ERROR(glProgramUniform4fvEXT(progID, currentUniform->mLocation, glArraySize, 
                                                                       params->getFloatPointer(def->physicalIndex)));
                            break;
                        case GCT_MATRIX_2X2:
                            OGRE_CHECK_GL_ERROR(glProgramUniformMatrix2fvEXT(progID, currentUniform->mLocation, glArraySize, 
                                                                             GL_FALSE, params->getFloatPointer(def->physicalIndex)));
                            break;
                        case GCT_MATRIX_3X3:
                            OGRE_CHECK_GL_ERROR(glProgramUniformMatrix3fvEXT(progID, currentUniform->mLocation, glArraySize, 
                                                                             GL_FALSE, params->getFloatPointer(def->physicalIndex)));
                            break;
                        case GCT_MATRIX_4X4:
                            OGRE_CHECK_GL_ERROR(glProgramUniformMatrix4fvEXT(progID, currentUniform->mLocation, glArraySize, 
                                                                             GL_FALSE, params->getFloatPointer(def->physicalIndex)));
                            break;
                        case GCT_INT1:
                            OGRE_CHECK_GL_ERROR(glProgramUniform1ivEXT(progID, currentUniform->mLocation, glArraySize, 
                                                                       params->getIntPointer(def->physicalIndex)));
                            break;
                        case GCT_INT2:
                            OGRE_CHECK_GL_ERROR(glProgramUniform2ivEXT(progID, currentUniform->mLocation, glArraySize, 
                                                                       params->getIntPointer(def->physicalIndex)));
                            break;
                        case GCT_INT3:
                            OGRE_CHECK_GL_ERROR(glProgramUniform3ivEXT(progID, currentUniform->mLocation, glArraySize, 
                                                                       params->getIntPointer(def->physicalIndex)));
                            break;
                        case GCT_INT4:
                            OGRE_CHECK_GL_ERROR(glProgramUniform4ivEXT(progID, currentUniform->mLocation, glArraySize, 
                                                                       params->getIntPointer(def->physicalIndex)));
                            break;
                        case GCT_SAMPLER1D:
                        case GCT_SAMPLER1DSHADOW:
                        case GCT_SAMPLER2D:
                        case GCT_SAMPLER2DSHADOW:
                        case GCT_SAMPLER3D:
                        case GCT_SAMPLERCUBE:
#if OGRE_NO_GLES3_SUPPORT == 0
                        case GCT_SAMPLER2DARRAY:
#endif
                            // Samplers handled like 1-element ints
                            OGRE_CHECK_GL_ERROR(glProgramUniform1ivEXT(progID, currentUniform->mLocation, 1,
                                                                       params->getIntPointer(def->physicalIndex)));
                            break;
#if OGRE_NO_GLES3_SUPPORT == 0
                        case GCT_MATRIX_2X3:
                            OGRE_CHECK_GL_ERROR(glProgramUniformMatrix2x3fvEXT(progID, currentUniform->mLocation, glArraySize,
                                                                            GL_FALSE, params->getFloatPointer(def->physicalIndex)));
                            break;
                        case GCT_MATRIX_2X4:
                            OGRE_CHECK_GL_ERROR(glProgramUniformMatrix2x4fvEXT(progID, currentUniform->mLocation, glArraySize,
                                                                            GL_FALSE, params->getFloatPointer(def->physicalIndex)));
                            break;
                        case GCT_MATRIX_3X2:
                            OGRE_CHECK_GL_ERROR(glProgramUniformMatrix3x2fvEXT(progID, currentUniform->mLocation, glArraySize,
                                                                            GL_FALSE, params->getFloatPointer(def->physicalIndex)));
                            break;
                        case GCT_MATRIX_3X4:
                            OGRE_CHECK_GL_ERROR(glProgramUniformMatrix3x4fvEXT(progID, currentUniform->mLocation, glArraySize,
                                                                            GL_FALSE, params->getFloatPointer(def->physicalIndex)));
                            break;
                        case GCT_MATRIX_4X2:
                            OGRE_CHECK_GL_ERROR(glProgramUniformMatrix4x2fvEXT(progID, currentUniform->mLocation, glArraySize,
                                                                            GL_FALSE, params->getFloatPointer(def->physicalIndex)));
                            break;
                        case GCT_MATRIX_4X3:
                            OGRE_CHECK_GL_ERROR(glProgramUniformMatrix4x3fvEXT(progID, currentUniform->mLocation, glArraySize,
                                                                            GL_FALSE, params->getFloatPointer(def->physicalIndex)));
                            break;
#else
                        case GCT_MATRIX_2X3:
                        case GCT_MATRIX_2X4:
                        case GCT_MATRIX_3X2:
                        case GCT_MATRIX_3X4:
                        case GCT_MATRIX_4X2:
                        case GCT_MATRIX_4X3:
                        case GCT_SAMPLER2DARRAY:
#endif
                        case GCT_UNKNOWN:
                        case GCT_SUBROUTINE:
                        case GCT_DOUBLE1:
                        case GCT_DOUBLE2:
                        case GCT_DOUBLE3:
                        case GCT_DOUBLE4:
                        case GCT_SAMPLERRECT:
                        case GCT_MATRIX_DOUBLE_2X2:
                        case GCT_MATRIX_DOUBLE_2X3:
                        case GCT_MATRIX_DOUBLE_2X4:
                        case GCT_MATRIX_DOUBLE_3X2:
                        case GCT_MATRIX_DOUBLE_3X3:
                        case GCT_MATRIX_DOUBLE_3X4:
                        case GCT_MATRIX_DOUBLE_4X2:
                        case GCT_MATRIX_DOUBLE_4X3:
                        case GCT_MATRIX_DOUBLE_4X4:
                        default:
                            break;
                            
                    } // End switch
                } // Variability & mask
            } // fromProgType == currentUniform->mSourceProgType
            
        } // End for
#endif
    }
    void GLSLSeparableProgram::updateUniforms(GpuProgramParametersSharedPtr params,
                                              uint16 mask, GpuProgramType fromProgType)
    {
        // Iterate through uniform reference list and update uniform values
        GLUniformReferenceIterator currentUniform = mGLUniformReferences.begin();
        GLUniformReferenceIterator endUniform = mGLUniformReferences.end();

        // determine if we need to transpose matrices when binding
        int transpose = GL_TRUE;
        if ((fromProgType == GPT_FRAGMENT_PROGRAM && mVertexShader && (!mVertexShader->getColumnMajorMatrices())) ||
            (fromProgType == GPT_VERTEX_PROGRAM && mFragmentShader && (!mFragmentShader->getColumnMajorMatrices())) ||
            (fromProgType == GPT_GEOMETRY_PROGRAM && mGeometryShader && (!mGeometryShader->getColumnMajorMatrices())) ||
            (fromProgType == GPT_HULL_PROGRAM && mHullShader && (!mHullShader->getColumnMajorMatrices())) ||
            (fromProgType == GPT_DOMAIN_PROGRAM && mDomainShader && (!mDomainShader->getColumnMajorMatrices())) ||
            (fromProgType == GPT_COMPUTE_PROGRAM && mComputeShader && (!mComputeShader->getColumnMajorMatrices())))
        {
            transpose = GL_FALSE;
        }

        GLuint progID = 0;
        if (fromProgType == GPT_VERTEX_PROGRAM)
        {
            progID = mVertexShader->getGLProgramHandle();
        }
        else if (fromProgType == GPT_FRAGMENT_PROGRAM)
        {
            progID = mFragmentShader->getGLProgramHandle();
        }
        else if (fromProgType == GPT_GEOMETRY_PROGRAM)
        {
            progID = mGeometryShader->getGLProgramHandle();
        }
        else if (fromProgType == GPT_HULL_PROGRAM)
        {
            progID = mHullShader->getGLProgramHandle();
        }
        else if (fromProgType == GPT_DOMAIN_PROGRAM)
        {
            progID = mDomainShader->getGLProgramHandle();
        }
        else if (fromProgType == GPT_COMPUTE_PROGRAM)
        {
            progID = mComputeShader->getGLProgramHandle();
        }

        for (; currentUniform != endUniform; ++currentUniform)
        {
            // Only pull values from buffer it's supposed to be in (vertex or fragment)
            // This method will be called once per shader stage.
            if (fromProgType == currentUniform->mSourceProgType)
            {
                const GpuConstantDefinition* def = currentUniform->mConstantDef;
                if (def->variability & mask)
                {
                    GLsizei glArraySize = (GLsizei)def->arraySize;

                    // Get the index in the parameter real list
                    switch (def->constType)
                    {
                    case GCT_FLOAT1:
                        OGRE_CHECK_GL_ERROR(glProgramUniform1fv(progID, currentUniform->mLocation, glArraySize,
                                                                params->getFloatPointer(def->physicalIndex)));
                        break;
                    case GCT_FLOAT2:
                        OGRE_CHECK_GL_ERROR(glProgramUniform2fv(progID, currentUniform->mLocation, glArraySize,
                                                                params->getFloatPointer(def->physicalIndex)));
                        break;
                    case GCT_FLOAT3:
                        OGRE_CHECK_GL_ERROR(glProgramUniform3fv(progID, currentUniform->mLocation, glArraySize,
                                                                params->getFloatPointer(def->physicalIndex)));
                        break;
                    case GCT_FLOAT4:
                        OGRE_CHECK_GL_ERROR(glProgramUniform4fv(progID, currentUniform->mLocation, glArraySize,
                                                                params->getFloatPointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_2X2:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix2fv(progID, currentUniform->mLocation, glArraySize,
                                                                      transpose, params->getFloatPointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_3X3:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix3fv(progID, currentUniform->mLocation, glArraySize,
                                                                      transpose, params->getFloatPointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_4X4:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix4fv(progID, currentUniform->mLocation, glArraySize,
                                                                      transpose, params->getFloatPointer(def->physicalIndex)));
                        break;
                    case GCT_INT1:
                        OGRE_CHECK_GL_ERROR(glProgramUniform1iv(progID, currentUniform->mLocation, glArraySize,
                                                                params->getIntPointer(def->physicalIndex)));
                        break;
                    case GCT_INT2:
                        OGRE_CHECK_GL_ERROR(glProgramUniform2iv(progID, currentUniform->mLocation, glArraySize,
                                                                params->getIntPointer(def->physicalIndex)));
                        break;
                    case GCT_INT3:
                        OGRE_CHECK_GL_ERROR(glProgramUniform3iv(progID, currentUniform->mLocation, glArraySize,
                                                                params->getIntPointer(def->physicalIndex)));
                        break;
                    case GCT_INT4:
                        OGRE_CHECK_GL_ERROR(glProgramUniform4iv(progID, currentUniform->mLocation, glArraySize,
                                                                params->getIntPointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_2X3:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix2x3fv(progID, currentUniform->mLocation, glArraySize,
                                                                        transpose, params->getFloatPointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_2X4:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix2x4fv(progID, currentUniform->mLocation, glArraySize,
                                                                        transpose, params->getFloatPointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_3X2:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix3x2fv(progID, currentUniform->mLocation, glArraySize,
                                                                        transpose, params->getFloatPointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_3X4:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix3x4fv(progID, currentUniform->mLocation, glArraySize,
                                                                        transpose, params->getFloatPointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_4X2:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix4x2fv(progID, currentUniform->mLocation, glArraySize,
                                                                        transpose, params->getFloatPointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_4X3:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix4x3fv(progID, currentUniform->mLocation, glArraySize,
                                                                        transpose, params->getFloatPointer(def->physicalIndex)));
                        break;
                    case GCT_DOUBLE1:
                        OGRE_CHECK_GL_ERROR(glProgramUniform1dv(progID, currentUniform->mLocation, glArraySize,
                                                                params->getDoublePointer(def->physicalIndex)));
                        break;
                    case GCT_DOUBLE2:
                        OGRE_CHECK_GL_ERROR(glProgramUniform2dv(progID, currentUniform->mLocation, glArraySize,
                                                                params->getDoublePointer(def->physicalIndex)));
                        break;
                    case GCT_DOUBLE3:
                        OGRE_CHECK_GL_ERROR(glProgramUniform3dv(progID, currentUniform->mLocation, glArraySize,
                                                                params->getDoublePointer(def->physicalIndex)));
                        break;
                    case GCT_DOUBLE4:
                        OGRE_CHECK_GL_ERROR(glProgramUniform4dv(progID, currentUniform->mLocation, glArraySize,
                                                                params->getDoublePointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_DOUBLE_2X2:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix2dv(progID, currentUniform->mLocation, glArraySize,
                                                                      transpose, params->getDoublePointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_DOUBLE_3X3:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix3dv(progID, currentUniform->mLocation, glArraySize,
                                                                      transpose, params->getDoublePointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_DOUBLE_4X4:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix4dv(progID, currentUniform->mLocation, glArraySize,
                                                                      transpose, params->getDoublePointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_DOUBLE_2X3:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix2x3dv(progID, currentUniform->mLocation, glArraySize,
                                                                        transpose, params->getDoublePointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_DOUBLE_2X4:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix2x4dv(progID, currentUniform->mLocation, glArraySize,
                                                                        transpose, params->getDoublePointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_DOUBLE_3X2:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix3x2dv(progID, currentUniform->mLocation, glArraySize,
                                                                        transpose, params->getDoublePointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_DOUBLE_3X4:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix3x4dv(progID, currentUniform->mLocation, glArraySize,
                                                                        transpose, params->getDoublePointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_DOUBLE_4X2:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix4x2dv(progID, currentUniform->mLocation, glArraySize,
                                                                        transpose, params->getDoublePointer(def->physicalIndex)));
                        break;
                    case GCT_MATRIX_DOUBLE_4X3:
                        OGRE_CHECK_GL_ERROR(glProgramUniformMatrix4x3dv(progID, currentUniform->mLocation, glArraySize,
                                                                        transpose, params->getDoublePointer(def->physicalIndex)));
                        break;
                    case GCT_UINT1:
                    case GCT_BOOL1:
                        OGRE_CHECK_GL_ERROR(glProgramUniform1uiv(progID, currentUniform->mLocation, glArraySize,
                                                                 params->getUnsignedIntPointer(def->physicalIndex)));
                        break;
                    case GCT_UINT2:
                    case GCT_BOOL2:
                        OGRE_CHECK_GL_ERROR(glProgramUniform2uiv(progID, currentUniform->mLocation, glArraySize,
                                                                 params->getUnsignedIntPointer(def->physicalIndex)));
                        break;
                    case GCT_UINT3:
                    case GCT_BOOL3:
                        OGRE_CHECK_GL_ERROR(glProgramUniform3uiv(progID, currentUniform->mLocation, glArraySize,
                                                                 params->getUnsignedIntPointer(def->physicalIndex)));
                        break;
                    case GCT_UINT4:
                    case GCT_BOOL4:
                        OGRE_CHECK_GL_ERROR(glProgramUniform4uiv(progID, currentUniform->mLocation, glArraySize,
                                                                 params->getUnsignedIntPointer(def->physicalIndex)));
                        break;

                    case GCT_SAMPLER1D:
                    case GCT_SAMPLER1DSHADOW:
                    case GCT_SAMPLER2D:
                    case GCT_SAMPLER2DSHADOW:
                    case GCT_SAMPLER2DARRAY:
                    case GCT_SAMPLER3D:
                    case GCT_SAMPLERCUBE:
                    case GCT_SAMPLERRECT:
                        // Samplers handled like 1-element ints
                        OGRE_CHECK_GL_ERROR(glProgramUniform1iv(progID, currentUniform->mLocation, 1,
                                                                params->getIntPointer(def->physicalIndex)));
                        break;
                    case GCT_UNKNOWN:
                    case GCT_SUBROUTINE:
                        break;

                    } // End switch
                } // Variability & mask
            } // fromProgType == currentUniform->mSourceProgType

        } // End for
    }
//-----------------------------------------------------------------------
void GLSLLinkProgram::updateUniforms(GpuProgramParametersSharedPtr params,
                                     uint16 mask, GpuProgramType fromProgType)
{
    // iterate through uniform reference list and update uniform values
    GLUniformReferenceIterator currentUniform = mGLUniformReferences.begin();
    GLUniformReferenceIterator endUniform = mGLUniformReferences.end();

    for (; currentUniform != endUniform; ++currentUniform)
    {
        // Only pull values from buffer it's supposed to be in (vertex or fragment)
        // This method will be called twice, once for vertex program params,
        // and once for fragment program params.
        if (fromProgType == currentUniform->mSourceProgType)
        {
            const GpuConstantDefinition* def = currentUniform->mConstantDef;
            if (def->variability & mask)
            {

                GLsizei glArraySize = (GLsizei)def->arraySize;

                // get the index in the parameter real list
                switch (def->constType)
                {
                case GCT_FLOAT1:
                    glUniform1fvARB(currentUniform->mLocation, glArraySize,
                                    params->getFloatPointer(def->physicalIndex));
                    break;
                case GCT_FLOAT2:
                    glUniform2fvARB(currentUniform->mLocation, glArraySize,
                                    params->getFloatPointer(def->physicalIndex));
                    break;
                case GCT_FLOAT3:
                    glUniform3fvARB(currentUniform->mLocation, glArraySize,
                                    params->getFloatPointer(def->physicalIndex));
                    break;
                case GCT_FLOAT4:
                    glUniform4fvARB(currentUniform->mLocation, glArraySize,
                                    params->getFloatPointer(def->physicalIndex));
                    break;
                case GCT_MATRIX_2X2:
                    glUniformMatrix2fvARB(currentUniform->mLocation, glArraySize,
                                          GL_TRUE, params->getFloatPointer(def->physicalIndex));
                    break;
                case GCT_MATRIX_2X3:
                    if (GLEW_VERSION_2_1)
                    {
                        glUniformMatrix2x3fv(currentUniform->mLocation, glArraySize,
                                             GL_TRUE, params->getFloatPointer(def->physicalIndex));
                    }
                    break;
                case GCT_MATRIX_2X4:
                    if (GLEW_VERSION_2_1)
                    {
                        glUniformMatrix2x4fv(currentUniform->mLocation, glArraySize,
                                             GL_TRUE, params->getFloatPointer(def->physicalIndex));
                    }
                    break;
                case GCT_MATRIX_3X2:
                    if (GLEW_VERSION_2_1)
                    {
                        glUniformMatrix3x2fv(currentUniform->mLocation, glArraySize,
                                             GL_TRUE, params->getFloatPointer(def->physicalIndex));
                    }
                    break;
                case GCT_MATRIX_3X3:
                    glUniformMatrix3fvARB(currentUniform->mLocation, glArraySize,
                                          GL_TRUE, params->getFloatPointer(def->physicalIndex));
                    break;
                case GCT_MATRIX_3X4:
                    if (GLEW_VERSION_2_1)
                    {
                        glUniformMatrix3x4fv(currentUniform->mLocation, glArraySize,
                                             GL_TRUE, params->getFloatPointer(def->physicalIndex));
                    }
                    break;
                case GCT_MATRIX_4X2:
                    if (GLEW_VERSION_2_1)
                    {
                        glUniformMatrix4x2fv(currentUniform->mLocation, glArraySize,
                                             GL_TRUE, params->getFloatPointer(def->physicalIndex));
                    }
                    break;
                case GCT_MATRIX_4X3:
                    if (GLEW_VERSION_2_1)
                    {
                        glUniformMatrix4x3fv(currentUniform->mLocation, glArraySize,
                                             GL_TRUE, params->getFloatPointer(def->physicalIndex));
                    }
                    break;
                case GCT_MATRIX_4X4:
                    glUniformMatrix4fvARB(currentUniform->mLocation, glArraySize,
                                          GL_TRUE, params->getFloatPointer(def->physicalIndex));
                    break;
                case GCT_INT1:
                    glUniform1ivARB(currentUniform->mLocation, glArraySize,
                                    (GLint*)params->getIntPointer(def->physicalIndex));
                    break;
                case GCT_INT2:
                    glUniform2ivARB(currentUniform->mLocation, glArraySize,
                                    (GLint*)params->getIntPointer(def->physicalIndex));
                    break;
                case GCT_INT3:
                    glUniform3ivARB(currentUniform->mLocation, glArraySize,
                                    (GLint*)params->getIntPointer(def->physicalIndex));
                    break;
                case GCT_INT4:
                    glUniform4ivARB(currentUniform->mLocation, glArraySize,
                                    (GLint*)params->getIntPointer(def->physicalIndex));
                    break;
                case GCT_SAMPLER1D:
                case GCT_SAMPLER1DSHADOW:
                case GCT_SAMPLER2D:
                case GCT_SAMPLER2DSHADOW:
                case GCT_SAMPLER3D:
                case GCT_SAMPLERCUBE:
                    // samplers handled like 1-element ints
                    glUniform1ivARB(currentUniform->mLocation, 1,
                                    (GLint*)params->getIntPointer(def->physicalIndex));
                    break;
                case GCT_UNKNOWN:
                    break;

                } // end switch
#if OGRE_DEBUG_MODE
                checkForGLSLError( "GLSLLinkProgram::updateUniforms", "Error updating uniform", 0 );
#endif
            } // variability & mask
        } // fromProgType == currentUniform->mSourceProgType

    } // end for
}