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1 #pragma once
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2
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3 #include <stdint.h>
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4 #if SIZE_MAX < UINT64_MAX
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5 #define audio_sample_size 32
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6 #else
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7 #define audio_sample_size 64
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8 #endif
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9
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10 #if audio_sample_size == 32
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11 typedef float audio_sample;
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12 #define audio_sample_asm dword
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13 #elif audio_sample_size == 64
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14 typedef double audio_sample;
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15 #define audio_sample_asm qword
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16 #else
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17 #error wrong audio_sample_size
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18 #endif
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19
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20 #define audio_sample_bytes (audio_sample_size/8)
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21
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22 /*
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23 PROBLEM:
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24 audio_math is implemented in pfc (pfc::audio_math) and in shared.dll (::audio_math)
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25 We must overlay shared.dll methods on top of PFC ones
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26 */
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27
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28 namespace audio_math
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29 {
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30 //! p_source/p_output can point to same buffer
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31 void SHARED_EXPORT scale(const audio_sample * p_source,t_size p_count,audio_sample * p_output,audio_sample p_scale);
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32 void SHARED_EXPORT convert_to_int16(const audio_sample * p_source,t_size p_count,t_int16 * p_output,audio_sample p_scale);
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33 void SHARED_EXPORT convert_to_int32(const audio_sample * p_source,t_size p_count,t_int32 * p_output,audio_sample p_scale);
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34 audio_sample SHARED_EXPORT convert_to_int16_calculate_peak(const audio_sample * p_source,t_size p_count,t_int16 * p_output,audio_sample p_scale);
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35 void SHARED_EXPORT convert_from_int16(const t_int16 * p_source,t_size p_count,audio_sample * p_output,audio_sample p_scale);
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36 void SHARED_EXPORT convert_from_int32(const t_int32 * p_source,t_size p_count,audio_sample * p_output,audio_sample p_scale);
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37 audio_sample SHARED_EXPORT convert_to_int32_calculate_peak(const audio_sample * p_source,t_size p_count,t_int32 * p_output,audio_sample p_scale);
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38 audio_sample SHARED_EXPORT calculate_peak(const audio_sample * p_source,t_size p_count);
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39 void SHARED_EXPORT kill_denormal(audio_sample * p_buffer,t_size p_count);
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40 void SHARED_EXPORT add_offset(audio_sample * p_buffer,audio_sample p_delta,t_size p_count);
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41 }
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42
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43 namespace audio_math_shareddll = audio_math;
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44 typedef pfc::audio_math audio_math_pfc;
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45
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46 // Overlay class, overrides specific pfc::audio_math methods
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47 class fb2k_audio_math : public audio_math_pfc {
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48 public:
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49 static void scale(const audio_sample * p_source,t_size p_count,audio_sample * p_output,audio_sample p_scale) {
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50 audio_math_shareddll::scale(p_source, p_count, p_output, p_scale);
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51 }
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52 static void convert_to_int16(const audio_sample * p_source,t_size p_count,t_int16 * p_output,audio_sample p_scale) {
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53 audio_math_shareddll::convert_to_int16(p_source, p_count, p_output, p_scale);
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54 }
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55 static void convert_to_int32(const audio_sample * p_source,t_size p_count,t_int32 * p_output,audio_sample p_scale) {
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56 audio_math_shareddll::convert_to_int32(p_source, p_count, p_output, p_scale);
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57 }
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58 static audio_sample convert_to_int16_calculate_peak(const audio_sample * p_source,t_size p_count,t_int16 * p_output,audio_sample p_scale) {
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59 return audio_math_shareddll::convert_to_int16_calculate_peak(p_source,p_count,p_output,p_scale);
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60 }
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61 static void convert_from_int16(const t_int16 * p_source,t_size p_count,audio_sample * p_output,audio_sample p_scale) {
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62 audio_math_shareddll::convert_from_int16(p_source,p_count,p_output,p_scale);
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63 }
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64 static void convert_from_int32(const t_int32 * p_source,t_size p_count,audio_sample * p_output,audio_sample p_scale) {
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65 audio_math_shareddll::convert_from_int32(p_source,p_count,p_output,p_scale);
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66 }
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67 static audio_sample convert_to_int32_calculate_peak(const audio_sample * p_source,t_size p_count,t_int32 * p_output,audio_sample p_scale) {
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68 return audio_math_shareddll::convert_to_int32_calculate_peak(p_source,p_count,p_output,p_scale);
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69 }
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70 static audio_sample calculate_peak(const audio_sample * p_source,t_size p_count) {
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71 return audio_math_shareddll::calculate_peak(p_source,p_count);
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72 }
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73 static void kill_denormal(audio_sample * p_buffer,t_size p_count) {
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74 audio_math_shareddll::kill_denormal(p_buffer, p_count);
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75 }
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76 static void add_offset(audio_sample * p_buffer,audio_sample p_delta,t_size p_count) {
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77 audio_math_shareddll::add_offset(p_buffer,p_delta,p_count);
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78 }
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79 };
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80
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81 // Anyone trying to talk to audio_math namespace will reach fb2k_audio_math which calls the right thing
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82 #define audio_math fb2k_audio_math
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