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Diffstat (limited to 'extern/audaspace/src/util/Buffer.cpp')
-rw-r--r-- | extern/audaspace/src/util/Buffer.cpp | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/extern/audaspace/src/util/Buffer.cpp b/extern/audaspace/src/util/Buffer.cpp new file mode 100644 index 00000000000..d212278cacc --- /dev/null +++ b/extern/audaspace/src/util/Buffer.cpp @@ -0,0 +1,72 @@ +/******************************************************************************* + * Copyright 2009-2016 Jörg Müller + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + ******************************************************************************/ + +#include "util/Buffer.h" + +#include <algorithm> +#include <cstring> +#include <cstdlib> + +#define ALIGNMENT 32 +#define ALIGN(a) (a + ALIGNMENT - ((long long)a & (ALIGNMENT-1))) + +AUD_NAMESPACE_BEGIN + +Buffer::Buffer(int size) +{ + m_size = size; + m_buffer = (data_t*) std::malloc(size + ALIGNMENT); +} + +Buffer::~Buffer() +{ + std::free(m_buffer); +} + +sample_t* Buffer::getBuffer() const +{ + return (sample_t*) ALIGN(m_buffer); +} + +int Buffer::getSize() const +{ + return m_size; +} + +void Buffer::resize(int size, bool keep) +{ + if(keep) + { + data_t* buffer = (data_t*) std::malloc(size + ALIGNMENT); + + std::memcpy(ALIGN(buffer), ALIGN(m_buffer), std::min(size, m_size)); + + std::free(m_buffer); + m_buffer = buffer; + } + else + m_buffer = (data_t*) std::realloc(m_buffer, size + ALIGNMENT); + + m_size = size; +} + +void Buffer::assureSize(int size, bool keep) +{ + if(m_size < size) + resize(size, keep); +} + +AUD_NAMESPACE_END |