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Diffstat (limited to 'src/engine/AudioBuffer.cpp')
| -rw-r--r-- | src/engine/AudioBuffer.cpp | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/src/engine/AudioBuffer.cpp b/src/engine/AudioBuffer.cpp deleted file mode 100644 index 172e41ac..00000000 --- a/src/engine/AudioBuffer.cpp +++ /dev/null @@ -1,207 +0,0 @@ -/* This file is part of Ingen. - * Copyright 2007-2011 David Robillard <http://drobilla.net> - * - * Ingen is free software; you can redistribute it and/or modify it under the - * terms of the GNU General Public License as published by the Free Software - * Foundation; either version 2 of the License, or (at your option) any later - * version. - * - * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY - * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS - * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <stdlib.h> -#include <cassert> -#include "raul/log.hpp" -#include "raul/SharedPtr.hpp" -#include "lv2/lv2plug.in/ns/ext/atom/atom.h" -#include "ingen-config.h" -#include "AudioBuffer.hpp" -#include "ProcessContext.hpp" -#include "LV2Features.hpp" - -using namespace std; -using namespace Raul; - -/* TODO: Be sure these functions are vectorized by GCC when its vectorizer - * stops sucking. Probably a good idea to inline them as well */ - -namespace Ingen { -namespace Engine { - -AudioBuffer::AudioBuffer(BufferFactory& bufs, PortType type, size_t size) - : ObjectBuffer(bufs, size) - , _state(OK) - , _set_value(0) - , _set_time(0) -{ - assert(size >= sizeof(LV2_Atom) + sizeof(Sample)); - assert(this->size() >= size); - assert(data()); - _type = type; - - // Control port / Single float object - if (type == PortType::CONTROL) { - atom()->type = 0;//map->float_type; - - // Audio port / Vector of float - } else { - assert(type == PortType::AUDIO); - atom()->type = 0;//map->vector_type; - LV2_Atom_Vector* body = (LV2_Atom_Vector*)atom()->body; - body->elem_count = size / sizeof(Sample); - body->elem_type = 0;//map->float_type; - } - /*debug << "Created Audio Buffer" << endl - << "\tobject @ " << (void*)atom() << endl - << "\tbody @ " << (void*)atom()->body - << "\t(offset " << (char*)atom()->body - (char*)atom() << ")" << endl - << "\tdata @ " << (void*)data() - << "\t(offset " << (char*)data() - (char*)atom() << ")" - << endl;*/ - - clear(); -} - -void -AudioBuffer::resize(size_t size) -{ - if (_type == PortType::AUDIO) { - ObjectBuffer::resize(size + sizeof(LV2_Atom_Vector)); - vector()->elem_count = size / sizeof(Sample); - } - clear(); -} - -/** Empty (ie zero) the buffer. - */ -void -AudioBuffer::clear() -{ - assert(nframes() != 0); - set_block(0, 0, nframes() - 1); - _state = OK; -} - -/** Set value of buffer to @a val after @a start_sample. - * - * The Buffer will handle setting the intial portion of the buffer to the - * value on the next cycle automatically (if @a start_sample is > 0), as - * long as pre_process() is called every cycle. - */ -void -AudioBuffer::set_value(Sample val, FrameTime cycle_start, FrameTime time) -{ - if (is_control()) - time = cycle_start; - - const FrameTime offset = time - cycle_start; - assert(nframes() != 0); - assert(offset <= nframes()); - - if (offset < nframes()) { - set_block(val, offset, nframes() - 1); - - if (offset == 0) - _state = OK; - else - _state = HALF_SET_CYCLE_1; - } // else trigger at very end of block - - _set_time = time; - _set_value = val; -} - -/** Set a block of buffer to @a val. - * - * @a start_sample and @a end_sample define the inclusive range to be set. - */ -void -AudioBuffer::set_block(Sample val, size_t start_offset, size_t end_offset) -{ - assert(end_offset >= start_offset); - assert(end_offset < nframes()); - - Sample* const buf = data(); - assert(buf); - - for (size_t i = start_offset; i <= end_offset; ++i) - buf[i] = val; -} - -/** Copy a block of @a src into buffer. - * - * @a start_sample and @a end_sample define the inclusive range to be set. - * This function only copies the same range in one buffer to another. - */ -void -AudioBuffer::copy(const Sample* src, size_t start_sample, size_t end_sample) -{ - assert(end_sample >= start_sample); - assert(nframes() != 0); - - Sample* const buf = data(); - assert(buf); - - const size_t copy_end = std::min(end_sample, (size_t)nframes() - 1); - for (size_t i = start_sample; i <= copy_end; ++i) - buf[i] = src[i]; -} - -void -AudioBuffer::copy(Context& context, const Buffer* src) -{ - const AudioBuffer* src_abuf = dynamic_cast<const AudioBuffer*>(src); - if (!src_abuf) { - clear(); - return; - } - - // Control => Control - if (src_abuf->is_control() == is_control()) { - ObjectBuffer::copy(context, src); - - // Audio => Audio - } else if (!src_abuf->is_control() && !is_control()) { - copy(src_abuf->data(), - context.offset(), context.offset() + context.nframes() - 1); - - // Audio => Control - } else if (!src_abuf->is_control() && is_control()) { - data()[0] = src_abuf->data()[context.offset()]; - - // Control => Audio - } else if (src_abuf->is_control() && !is_control()) { - data()[context.offset()] = src_abuf->data()[0]; - - // Control => Audio or Audio => Control - } else { - set_block(src_abuf->data()[0], 0, nframes()); - } -} - -void -AudioBuffer::prepare_read(Context& context) -{ - assert(nframes() != 0); - switch (_state) { - case HALF_SET_CYCLE_1: - if (context.start() > _set_time) - _state = HALF_SET_CYCLE_2; - break; - case HALF_SET_CYCLE_2: - set_block(_set_value, 0, nframes() - 1); - _state = OK; - break; - default: - break; - } -} - -} // namespace Engine -} // namespace Ingen |