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Support owning track data

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This commit is contained in:
Nikita Lisitsa 2021-06-25 13:45:44 +03:00
parent dd40936769
commit 3feb2776c1
2 changed files with 19 additions and 0 deletions
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3
libs/audio/include/psemek/audio/engine.hpp
View file

@ -9,6 +9,7 @@
#include <memory> #include <memory>
#include <string_view> #include <string_view>
#include <vector>
namespace psemek::audio namespace psemek::audio
{ {
@ -34,6 +35,8 @@ namespace psemek::audio
return load(data.data(), data.size()); return load(data.data(), data.size());
} }
std::shared_ptr<track> load_raw(std::vector<sample> data);
std::shared_ptr<stream> play(std::shared_ptr<track> s, bool start = true, bool loop = false); std::shared_ptr<stream> play(std::shared_ptr<track> s, bool start = true, bool loop = false);
private: private:

16
libs/audio/source/engine.cpp
View file

@ -45,11 +45,17 @@ namespace psemek::audio
: track : track
{ {
Mix_Chunk * chunk; Mix_Chunk * chunk;
std::vector<sample> buffer;
track_impl(Mix_Chunk * chunk) track_impl(Mix_Chunk * chunk)
: chunk(chunk) : chunk(chunk)
{} {}
track_impl(Mix_Chunk * chunk, std::vector<sample> buffer)
: chunk(chunk)
, buffer(std::move(buffer))
{}
sample const * data() const override sample const * data() const override
{ {
return reinterpret_cast<sample const *>(chunk->abuf); return reinterpret_cast<sample const *>(chunk->abuf);
@ -307,6 +313,16 @@ namespace psemek::audio
return std::make_shared<track_impl>(chunk); return std::make_shared<track_impl>(chunk);
} }
std::shared_ptr<track> engine::load_raw(std::vector<sample> data)
{
Mix_Chunk * chunk = static_cast<Mix_Chunk *>(malloc(sizeof(Mix_Chunk)));
chunk->allocated = 0;
chunk->alen = data.size() * sizeof(sample);
chunk->volume = 128;
chunk->abuf = const_cast<Uint8 *>(reinterpret_cast<Uint8 const *>(data.data()));
return std::make_shared<track_impl>(chunk, std::move(data));
}
std::shared_ptr<stream> engine::play(std::shared_ptr<track> s, bool start, bool loop) std::shared_ptr<stream> engine::play(std::shared_ptr<track> s, bool start, bool loop)
{ {
auto str = impl().play(std::move(s), loop); auto str = impl().play(std::move(s), loop);