commit 984f51b373f5fceefbff68ec8d26dbe13c63292b Author: Jens Ahrensfeld Date: Sun Oct 26 12:10:12 2025 +0100 Inital commit diff --git a/README.md b/README.md new file mode 100644 index 0000000..e69de29 diff --git a/delay/public/dsp_ringbuffer.hpp b/delay/public/dsp_ringbuffer.hpp new file mode 100644 index 0000000..b68de20 --- /dev/null +++ b/delay/public/dsp_ringbuffer.hpp @@ -0,0 +1,85 @@ +/* + * jayDSP, A cross-platform Digital Signal Processing library written in modern C++. + * Copyright (C) 2025 Jens Ahrensfeld, All rights reserved. + * + * 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 NON INFRINGEMENT. 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. + + * File: dsp_ringbuffer.hpp + * Author Jens Ahrensfeld on 26.10.2025. + */ + +#ifndef DSP_RINGBUFFER_H +#define DSP_RINGBUFFER_H + +#include +#include +#include +#include +#include "../../dsp_types.hpp" + +namespace dsp { + +template +class RingBuffer +{ + uint32_t m_index; + uint32_t m_mask; + size_t m_capacity; + vector m_buffer; + + public: + RingBuffer(size_t capacity) + : m_index(0) + , m_mask(0) + , m_capacity(0) + { + resize(capacity); + } + + size_t capacity() + { + return m_buffer.capacity(); + } + void resize(int capacity, T value=T()) + { + m_capacity = 1; + while (m_capacity < capacity) + { + m_capacity *= 2; + } + + m_buffer.assign(m_capacity, value); + m_mask = unsigned(m_capacity - 1); + m_index = 0; + } + + void put(T sample) + { + m_index = (m_index + 1) & m_mask; + m_buffer[m_index] = sample; + } + + T get(uint32_t delay = 0) + { + uint32_t i = (m_index - delay) & m_mask; + return m_buffer[i]; + } +}; +} + +#endif diff --git a/delay/tests/Makefile b/delay/tests/Makefile new file mode 100644 index 0000000..31f80e6 --- /dev/null +++ b/delay/tests/Makefile @@ -0,0 +1,26 @@ +include $(MAKE_HOME)/defaults.mk + +# Environment +CC=clang +CCC=clang++ +CXX=clang++ + +NAME := test_dsp_ringbuffer +CONFIG ?= debug +TARGET ?= $(NAME) + +CXXFLAGS += -std=c++11 + +INCLUDES += -I $(realpath .) -I $(realpath ../public) + +CXX_SRCS := test_ringbuffer.cpp + +LIBS := -lstdc++ + +run: link + @echo Running $(TARGET) + @${BUILD_DIR}/${TARGET} + +include $(MAKE_HOME)/compile.mk +include $(MAKE_HOME)/link.mk + diff --git a/delay/tests/build/linux/debug/test_dsp_ringbuffer/test_dsp_ringbuffer b/delay/tests/build/linux/debug/test_dsp_ringbuffer/test_dsp_ringbuffer new file mode 100755 index 0000000..f9a42b5 Binary files /dev/null and b/delay/tests/build/linux/debug/test_dsp_ringbuffer/test_dsp_ringbuffer differ diff --git a/delay/tests/build/linux/debug/test_dsp_ringbuffer/test_ringbuffer.d b/delay/tests/build/linux/debug/test_dsp_ringbuffer/test_ringbuffer.d new file mode 100644 index 0000000..6c5156d --- /dev/null +++ b/delay/tests/build/linux/debug/test_dsp_ringbuffer/test_ringbuffer.d @@ -0,0 +1,3 @@ +/home/jens/work/repos/dsp/delay/tests/build/linux/debug/test_dsp_ringbuffer/test_ringbuffer.o: \ + test_ringbuffer.cpp ../public/dsp_ringbuffer.hpp \ + ../public/../../dsp_types.hpp diff --git a/delay/tests/build/linux/debug/test_dsp_ringbuffer/test_ringbuffer.o b/delay/tests/build/linux/debug/test_dsp_ringbuffer/test_ringbuffer.o new file mode 100644 index 0000000..d3f3607 Binary files /dev/null and b/delay/tests/build/linux/debug/test_dsp_ringbuffer/test_ringbuffer.o differ diff --git a/delay/tests/test_ringbuffer.cpp b/delay/tests/test_ringbuffer.cpp new file mode 100644 index 0000000..ae81c12 --- /dev/null +++ b/delay/tests/test_ringbuffer.cpp @@ -0,0 +1,19 @@ +#include "../public/dsp_ringbuffer.hpp" +#include + + +int main() +{ + dsp::RingBuffer buffer(10); + printf("Buffer capacity = %zu\n", buffer.capacity()); + for (int i; i < 10; i++) + { + buffer.put(i+1); + int v = buffer.get(2); + printf("i=%d: v=%d\n", i, v); + + } + + + return 0; +} \ No newline at end of file diff --git a/dsp_types.hpp b/dsp_types.hpp new file mode 100644 index 0000000..912b69e --- /dev/null +++ b/dsp_types.hpp @@ -0,0 +1,41 @@ +/* + * jayDSP, A cross-platform Digital Signal Processing library written in modern C++. + * Copyright (C) 2025 Jens Ahrensfeld, All rights reserved. + * + * 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 NON INFRINGEMENT. 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. + + * File: dsp_types.hpp + * Author Jens Ahrensfeld on 26.10.2025. + */ + +#ifndef DSP_TYPES_HPP +#define DSP_TYPES_HPP + +#include + +namespace dsp { + + template + class vector : public std::vector + { + + }; + +} + +#endif // DSP_TYPES_HPP \ No newline at end of file