removed _OLD functions

Author: Erfan-Ahmadi

include/nbl/builtin/glsl/ext/FFT/fft.glsl

@@ -373,125 +373,4 @@ void nbl_glsl_ext_FFT(bool is_inverse)
     }
 }
 
-// REMOVE THESE 3 commits later :D
-uint nbl_glsl_ext_FFT_calculateTwiddlePower_OLD(in uint threadId, in uint iteration, in uint logTwoN) 
-{
-    const uint shiftSuffix = logTwoN - 1u - iteration;
-    const uint suffixMask = (2u << iteration) - 1u;
-    return (threadId & suffixMask) << shiftSuffix;
-}
-
-nbl_glsl_complex nbl_glsl_ext_FFT_twiddle_OLD(in uint threadId, in uint iteration, in uint logTwoN) 
-{
-    uint k = nbl_glsl_ext_FFT_calculateTwiddlePower(threadId, iteration, logTwoN);
-    return nbl_glsl_expImaginary(-1.0f * 2.0f * nbl_glsl_PI * float(k) / float(1 << logTwoN));
-}
-
-nbl_glsl_complex nbl_glsl_ext_FFT_twiddleInverse_OLD(in uint threadId, in uint iteration, in uint logTwoN) 
-{
-    return nbl_glsl_complex_conjugate(nbl_glsl_ext_FFT_twiddle(threadId, iteration, logTwoN));
-}
-
-uint nbl_glsl_ext_FFT_getChannel_OLD()
-{
-    uint direction = nbl_glsl_ext_FFT_Parameters_t_getDirection();
-    return gl_WorkGroupID[direction];
-}
-
-void nbl_glsl_ext_FFT_OLD(bool is_inverse)
-{
-    // Virtual Threads Calculation
-    uint dataLength = nbl_glsl_ext_FFT_getDimLength(nbl_glsl_ext_FFT_Parameters_t_getPaddedDimensions());
-    uint num_virtual_threads = (dataLength-1u)/(_NBL_GLSL_EXT_FFT_WORKGROUP_SIZE_)+1u;
-    uint thread_offset = gl_LocalInvocationIndex;
-
-	uint channel = nbl_glsl_ext_FFT_getChannel_OLD();
-    
-	// Pass 0: Bit Reversal
-	uint leadingZeroes = nbl_glsl_clz(dataLength) + 1u;
-	uint logTwo = 32u - leadingZeroes;
-	
-    nbl_glsl_complex current_values[_NBL_GLSL_EXT_FFT_MAX_ITEMS_PER_THREAD];
-    nbl_glsl_complex shuffled_values[_NBL_GLSL_EXT_FFT_MAX_ITEMS_PER_THREAD];
-
-    // Load Initial Values into Local Mem (bit reversed indices)
-    for(uint t = 0u; t < num_virtual_threads; t++)
-    {
-        uint tid = thread_offset + t * _NBL_GLSL_EXT_FFT_WORKGROUP_SIZE_;
-        uvec3 coords = nbl_glsl_ext_FFT_getCoordinates(tid);
-        uvec3 bitReversedCoords = nbl_glsl_ext_FFT_getBitReversedCoordinates(coords, leadingZeroes);
-
-        current_values[t] = nbl_glsl_ext_FFT_getPaddedData(bitReversedCoords, channel);
-    }
-
-    // For loop for each stage of the FFT (each virtual thread computes 1 buttefly wing)
-	for(uint i = 0u; i < logTwo; ++i) 
-    {
-		uint mask = 1u << i;
-
-        // Data Exchange for virtual threads :
-        // X and Y are seperate to use less shared memory for complex numbers
-        // Get Shuffled Values X for virtual threads
-        for(uint t = 0u; t < num_virtual_threads; t++)
-        {
-            uint tid = thread_offset + t * _NBL_GLSL_EXT_FFT_WORKGROUP_SIZE_;
-            _NBL_GLSL_SCRATCH_SHARED_DEFINED_[tid] = floatBitsToUint(current_values[t].x);
-        }
-        barrier();
-        memoryBarrierShared();
-        for(uint t = 0u; t < num_virtual_threads; t++)
-        {
-            uint tid = thread_offset + t * _NBL_GLSL_EXT_FFT_WORKGROUP_SIZE_;
-            shuffled_values[t].x = uintBitsToFloat(_NBL_GLSL_SCRATCH_SHARED_DEFINED_[tid ^ mask]);
-        }
-
-        barrier();
-        memoryBarrierShared();
-
-        // Get Shuffled Values Y for virtual threads
-        for(uint t = 0u; t < num_virtual_threads; t++)
-        {
-            uint tid = thread_offset + t * _NBL_GLSL_EXT_FFT_WORKGROUP_SIZE_;
-            _NBL_GLSL_SCRATCH_SHARED_DEFINED_[tid] = floatBitsToUint(current_values[t].y);
-        }
-        barrier();
-        memoryBarrierShared();
-        for(uint t = 0u; t < num_virtual_threads; t++)
-        {
-            uint tid = thread_offset + t * _NBL_GLSL_EXT_FFT_WORKGROUP_SIZE_;
-            shuffled_values[t].y = uintBitsToFloat(_NBL_GLSL_SCRATCH_SHARED_DEFINED_[tid ^ mask]);
-        }
-
-        // Computation of each virtual thread
-        for(uint t = 0u; t < num_virtual_threads; t++)
-        {
-            uint tid = thread_offset + t * _NBL_GLSL_EXT_FFT_WORKGROUP_SIZE_;
-            nbl_glsl_complex shuffled_value = shuffled_values[t];
-
-            nbl_glsl_complex twiddle = (!is_inverse) 
-             ? nbl_glsl_ext_FFT_twiddle_OLD(tid, i, logTwo)
-             : nbl_glsl_ext_FFT_twiddleInverse_OLD(tid, i, logTwo);
-
-            nbl_glsl_complex this_value = current_values[t];
-
-            if(0u < uint(tid & mask)) {
-                current_values[t] = shuffled_value + nbl_glsl_complex_mul(twiddle, this_value); 
-            } else {
-                current_values[t] = this_value + nbl_glsl_complex_mul(twiddle, shuffled_value); 
-            }
-        }
-    }
-
-    for(uint t = 0u; t < num_virtual_threads; t++)
-    {
-        uint tid = thread_offset + t * _NBL_GLSL_EXT_FFT_WORKGROUP_SIZE_;
-	    uvec3 coords = nbl_glsl_ext_FFT_getCoordinates(tid);
-        nbl_glsl_complex complex_value = (!is_inverse) 
-         ? current_values[t]
-         : current_values[t] / dataLength;
-
-	    nbl_glsl_ext_FFT_setData(coords, channel, complex_value);
-    }
-}
-
 #endif