X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=deps%2Flibretro-common%2Faudio%2Fdsp_filters%2Ffft%2Ffft.h;fp=deps%2Flibretro-common%2Faudio%2Fdsp_filters%2Ffft%2Ffft.h;h=50c191da6f89e9adcf95ab8257f3bc3c676a3771;hb=3719602cbe883fb394a71353e20a10a4a306e814;hp=0000000000000000000000000000000000000000;hpb=8659d7fd2cdb11f63724ead0997f47f4c694f8c2;p=pcsx_rearmed.git

diff --git a/deps/libretro-common/audio/dsp_filters/fft/fft.h b/deps/libretro-common/audio/dsp_filters/fft/fft.h
new file mode 100644
index 00000000..50c191da
--- /dev/null
+++ b/deps/libretro-common/audio/dsp_filters/fft/fft.h
@@ -0,0 +1,44 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (fft.h).
+ * ---------------------------------------------------------------------------------------
+ *
+ * Permission is hereby granted, free of charge,
+ * to any person obtaining a copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef RARCH_FFT_H__
+#define RARCH_FFT_H__
+
+#include <retro_inline.h>
+#include <math/complex.h>
+
+typedef struct fft fft_t;
+
+fft_t *fft_new(unsigned block_size_log2);
+
+void fft_free(fft_t *fft);
+
+void fft_process_forward_complex(fft_t *fft,
+      fft_complex_t *out, const fft_complex_t *in, unsigned step);
+
+void fft_process_forward(fft_t *fft,
+      fft_complex_t *out, const float *in, unsigned step);
+
+void fft_process_inverse(fft_t *fft,
+      float *out, const fft_complex_t *in, unsigned step);
+
+#endif