Index: third_party/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_C_SC32.c |
diff --git a/third_party/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_C_SC32.c b/third_party/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_C_SC32.c |
new file mode 100644 |
index 0000000000000000000000000000000000000000..0ca3b5664b4b57a7303cefa514129e015f6defce |
--- /dev/null |
+++ b/third_party/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_C_SC32.c |
@@ -0,0 +1,94 @@ |
+/* |
+ * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. |
+ * |
+ * Use of this source code is governed by a BSD-style license |
+ * that can be found in the LICENSE file in the root of the source |
+ * tree. An additional intellectual property rights grant can be found |
+ * in the file PATENTS. All contributing project authors may |
+ * be found in the AUTHORS file in the root of the source tree. |
+ * |
+ * This file was originally licensed as follows. It has been |
+ * relicensed with permission from the copyright holders. |
+ */ |
+ |
+/** |
+ * |
+ * File Name: omxSP_FFTGetBufSize_C_SC32.c |
+ * OpenMAX DL: v1.0.2 |
+ * Last Modified Revision: 9468 |
+ * Last Modified Date: Thu, 03 Jan 2008 |
+ * |
+ * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved. |
+ * |
+ * |
+ * Description: |
+ * Compute the size of the specification structure required |
+ */ |
+ |
+#include "dl/api/armOMX.h" |
+#include "dl/api/omxtypes.h" |
+#include "dl/sp/api/armSP.h" |
+#include "dl/sp/api/omxSP.h" |
+ |
+ |
+/** |
+ * Function: omxSP_FFTGetBufSize_C_SC32 (2.2.4.1.6) |
+ * |
+ * Description: |
+ * These functions compute the size of the specification structure |
+ * required for the length 2^order complex FFT and IFFT functions. The function |
+ * <FFTGetBufSize_C_SC32> is used in conjunction with the 32-bit functions |
+ * <FFTFwd_CToC_SC32_Sfs> and <FFTInv_CToC_SC32_Sfs>. |
+ * |
+ * Input Arguments: |
+ * |
+ * order - base-2 logarithm of the desired block length; valid in the range |
+ * [0,12] |
+ * |
+ * Output Arguments: |
+ * |
+ * pSize - pointer to the number of bytes required for the specification |
+ * structure |
+ * |
+ * Return Value: |
+ * |
+ * OMX_Sts_NoErr - no error |
+ * |
+ * |
+ */ |
+ |
+ |
+OMXResult omxSP_FFTGetBufSize_C_SC32( |
+ OMX_INT order, |
+ OMX_INT *pSize) |
+{ |
+ |
+ OMX_INT N,twiddleSize; |
+ |
+ /* Check for order zero */ |
+ if (order == 0) |
+ { |
+ *pSize = sizeof(ARMsFFTSpec_SC32); |
+ return OMX_Sts_NoErr; |
+ } |
+ |
+ |
+ N = 1 << order; |
+ |
+ /*The max size of the twiddle table needed is 3N/4 for a radix-4 stage*/ |
+ twiddleSize = 3*N/4; |
+ |
+ *pSize = sizeof(ARMsFFTSpec_SC32) |
+ /* N Twiddle factors */ |
+ + sizeof(OMX_SC32) * twiddleSize |
+ /* Ping Pong buffer */ |
+ + sizeof(OMX_SC32) * N |
+ + 62 ; /* Extra bytes to get 32 byte alignment of ptwiddle and pBuf */ |
+ |
+ return OMX_Sts_NoErr; |
+} |
+ |
+/***************************************************************************** |
+ * END OF FILE |
+ *****************************************************************************/ |
+ |