mirror of
https://github.com/Xaymar/obs-StreamFX
synced 2024-11-15 00:05:06 +00:00
obs/gs/vertexbuffer: Cleanup and add workaround for OBS Studio memory leak
This commit is contained in:
Michael Fabian 'Xaymar' Dirks
Michael Fabian Dirks
parent
b57c7975e3
commit
bbfacbc30b
2 changed files with 161 additions and 209 deletions
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@ -22,120 +22,114 @@
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#include "obs/gs/gs-helper.hpp"
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#include "utility.hpp"
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void gs::vertex_buffer::initialize(std::size_t capacity, std::size_t layers)
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void gs::vertex_buffer::initialize(uint32_t capacity, uint8_t layers)
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{
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finalize();
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if (capacity > MAXIMUM_VERTICES) {
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throw std::out_of_range("capacity too large");
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throw std::out_of_range("capacity");
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}
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if (layers > MAXIMUM_UVW_LAYERS) {
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throw std::out_of_range("too many layers");
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throw std::out_of_range("layers");
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}
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// Allocate memory for data.
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_data = gs_vbdata_create();
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_data = std::make_shared<decltype(_data)::element_type>();
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_data->num = _capacity;
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_data->num_tex = _layers;
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_data->points = _positions = (vec3*)util::malloc_aligned(16, sizeof(vec3) * _capacity);
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memset(_positions, 0, sizeof(vec3) * _capacity);
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_data->normals = _normals = (vec3*)util::malloc_aligned(16, sizeof(vec3) * _capacity);
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memset(_normals, 0, sizeof(vec3) * _capacity);
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_data->tangents = _tangents = (vec3*)util::malloc_aligned(16, sizeof(vec3) * _capacity);
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memset(_tangents, 0, sizeof(vec3) * _capacity);
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_data->colors = _colors = (uint32_t*)util::malloc_aligned(16, sizeof(uint32_t) * _capacity);
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// Clear the allocated memory of any data.
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memset(_positions, 0, sizeof(vec3) * _capacity);
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memset(_normals, 0, sizeof(vec3) * _capacity);
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memset(_tangents, 0, sizeof(vec3) * _capacity);
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memset(_colors, 0, sizeof(uint32_t) * _capacity);
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if (_layers > 0) {
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_data->tvarray = _layer_data = (gs_tvertarray*)util::malloc_aligned(16, sizeof(gs_tvertarray) * _layers);
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for (std::size_t n = 0; n < _layers; n++) {
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_layer_data[n].array = _uvs[n] = (vec4*)util::malloc_aligned(16, sizeof(vec4) * _capacity);
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_layer_data[n].width = 4;
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if (_layers == 0) {
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_data->tvarray = nullptr;
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} else {
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_data->tvarray = _uv_layers = (gs_tvertarray*)util::malloc_aligned(16, sizeof(gs_tvertarray) * _layers);
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for (uint8_t n = 0; n < _layers; n++) {
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_uv_layers[n].array = _uvs[n] = (vec4*)util::malloc_aligned(16, sizeof(vec4) * _capacity);
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_uv_layers[n].width = 4;
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memset(_uvs[n], 0, sizeof(vec4) * _capacity);
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}
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} else {
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_data->tvarray = nullptr;
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}
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}
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gs::vertex_buffer::~vertex_buffer()
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// Allocate actual GPU vertex buffer.
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{
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if (_positions) {
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util::free_aligned(_positions);
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_positions = nullptr;
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}
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if (_normals) {
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util::free_aligned(_normals);
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_normals = nullptr;
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}
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if (_tangents) {
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util::free_aligned(_tangents);
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_tangents = nullptr;
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}
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if (_colors) {
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util::free_aligned(_colors);
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_colors = nullptr;
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}
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for (std::size_t n = 0; n < _layers; n++) {
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if (_uvs[n]) {
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util::free_aligned(_uvs[n]);
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_uvs[n] = nullptr;
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}
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}
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if (_layer_data) {
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util::free_aligned(_layer_data);
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_layer_data = nullptr;
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}
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if (_data) {
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memset(_data, 0, sizeof(gs_vb_data));
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if (!_buffer) {
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gs_vbdata_destroy(_data);
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_data = nullptr;
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}
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}
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if (_buffer) {
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auto gctx = gs::context();
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gs_vertexbuffer_destroy(_buffer);
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_buffer = nullptr;
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}
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}
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gs::vertex_buffer::vertex_buffer() : vertex_buffer(MAXIMUM_VERTICES, MAXIMUM_UVW_LAYERS) {}
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gs::vertex_buffer::vertex_buffer(std::uint32_t vertices) : vertex_buffer(vertices, MAXIMUM_UVW_LAYERS) {}
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gs::vertex_buffer::vertex_buffer(std::uint32_t vertices, std::uint8_t uvlayers)
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: _size(vertices), _capacity(vertices), _layers(uvlayers), _positions(nullptr), _normals(nullptr),
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_tangents(nullptr), _colors(nullptr), _data(nullptr), _buffer(nullptr), _layer_data(nullptr)
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{
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initialize(vertices, uvlayers);
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if (vertices > MAXIMUM_VERTICES) {
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throw std::out_of_range("vertices out of range");
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}
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if (uvlayers > MAXIMUM_UVW_LAYERS) {
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throw std::out_of_range("uvlayers out of range");
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}
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// Allocate GPU
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_buffer =
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decltype(_buffer)(gs_vertexbuffer_create(_data.get(), GS_DYNAMIC | GS_DUP_BUFFER), [this](gs_vertbuffer_t* v) {
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try {
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auto gctx = gs::context();
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_buffer = gs_vertexbuffer_create(_data, GS_DYNAMIC | GS_DUP_BUFFER);
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memset(_data, 0, sizeof(gs_vb_data));
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_data->num = _capacity;
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_data->num_tex = _layers;
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gs_vertexbuffer_destroy(v);
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} catch (...) {
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if (obs_get_version() < MAKE_SEMANTIC_VERSION(26, 0, 0)) {
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// Fixes a memory leak with OBS Studio versions older than 26.x.
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gs_vbdata_destroy(_obs_data);
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}
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}
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});
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_obs_data = gs_vertexbuffer_get_data(_buffer.get());
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}
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if (!_buffer) {
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throw std::runtime_error("Failed to create vertex buffer.");
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}
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}
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// cppcheck-suppress uninitMemberVar
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void gs::vertex_buffer::finalize()
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{
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// Free data
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util::free_aligned(_positions);
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util::free_aligned(_normals);
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util::free_aligned(_tangents);
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util::free_aligned(_colors);
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util::free_aligned(_uv_layers);
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for (std::size_t n = 0; n < _layers; n++) {
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util::free_aligned(_uvs[n]);
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}
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_buffer.reset();
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_data.reset();
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}
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gs::vertex_buffer::~vertex_buffer()
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{
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finalize();
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}
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gs::vertex_buffer::vertex_buffer(uint32_t size, uint8_t layers)
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: _capacity(size), _size(size), _layers(layers),
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_buffer(nullptr), _data(nullptr),
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_positions(nullptr), _normals(nullptr), _tangents(nullptr), _colors(nullptr), _uv_layers(nullptr), _uvs(),
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_obs_data(nullptr)
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{
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initialize(_size, _layers);
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}
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gs::vertex_buffer::vertex_buffer(gs_vertbuffer_t* vb)
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: _size(0), _capacity(0), _layers(0), _positions(nullptr), _normals(nullptr), _tangents(nullptr), _colors(nullptr),
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_uvs(), _data(nullptr), _buffer(nullptr), _layer_data(nullptr)
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: _capacity(0), _size(0), _layers(0),
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_buffer(nullptr), _data(nullptr),
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_positions(nullptr), _normals(nullptr), _tangents(nullptr), _colors(nullptr), _uv_layers(nullptr), _uvs(),
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_obs_data(nullptr)
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{
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auto gctx = gs::context();
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gs_vb_data* vbd = gs_vertexbuffer_get_data(vb);
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if (!vbd)
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throw std::runtime_error("vertex buffer with no data");
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initialize(vbd->num, vbd->num_tex);
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initialize(static_cast<uint32_t>(vbd->num), static_cast<uint8_t>(vbd->num_tex));
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if (_positions && vbd->points)
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memcpy(_positions, vbd->points, vbd->num * sizeof(vec3));
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@ -153,7 +147,6 @@ gs::vertex_buffer::vertex_buffer(gs_vertbuffer_t* vb)
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} else if (vbd->tvarray[n].width < 4) {
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for (std::size_t idx = 0; idx < _capacity; idx++) {
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float* mem = reinterpret_cast<float*>(vbd->tvarray[n].array) + (idx * vbd->tvarray[n].width);
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// cppcheck-suppress memsetClassFloat
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memset(&_uvs[n][idx], 0, sizeof(vec4));
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memcpy(&_uvs[n][idx], mem, vbd->tvarray[n].width);
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}
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@ -163,114 +156,95 @@ gs::vertex_buffer::vertex_buffer(gs_vertbuffer_t* vb)
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}
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}
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// cppcheck-suppress uninitMemberVar
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gs::vertex_buffer::vertex_buffer(vertex_buffer const& other) : vertex_buffer(other._capacity)
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{
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// Copy Constructor
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gs::vertex_buffer::vertex_buffer(vertex_buffer const& other) : vertex_buffer(other._capacity, other._layers)
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{ // Copy Constructor
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memcpy(_positions, other._positions, _capacity * sizeof(vec3));
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memcpy(_normals, other._normals, _capacity * sizeof(vec3));
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memcpy(_tangents, other._tangents, _capacity * sizeof(vec3));
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memcpy(_colors, other._colors, _capacity * sizeof(vec3));
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for (std::size_t n = 0; n < MAXIMUM_UVW_LAYERS; n++) {
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memcpy(_uvs[n], other._uvs[n], _capacity * sizeof(vec3));
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for (std::size_t n = 0; n < other._layers; n++) {
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memcpy(_uvs[n], other._uvs[n], _capacity * sizeof(vec4));
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}
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}
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gs::vertex_buffer::vertex_buffer(vertex_buffer const&& other) noexcept : _uvs()
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{
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// Move Constructor
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void gs::vertex_buffer::operator=(vertex_buffer const& other)
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{ // Copy operator
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initialize(other._capacity, other._layers);
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_size = other._size;
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// Copy actual data over.
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memcpy(_positions, other._positions, other._capacity * sizeof(vec3));
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memcpy(_normals, other._normals, other._capacity * sizeof(vec3));
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memcpy(_tangents, other._tangents, other._capacity * sizeof(vec3));
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memcpy(_colors, other._colors, other._capacity * sizeof(uint32_t));
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memcpy(_uv_layers, other._uv_layers, sizeof(gs_tvertarray));
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for (std::size_t n = 0; n < other._layers; n++) {
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memcpy(_uvs[n], other._uvs[n], _capacity * sizeof(vec4));
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}
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}
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gs::vertex_buffer::vertex_buffer(vertex_buffer const&& other) noexcept
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{ // Move Constructor
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_capacity = other._capacity;
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_size = other._size;
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_layers = other._layers;
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_buffer = other._buffer;
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_data = other._data;
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_positions = other._positions;
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_normals = other._normals;
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_tangents = other._tangents;
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_colors = other._colors;
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_uv_layers = other._uv_layers;
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for (std::size_t n = 0; n < MAXIMUM_UVW_LAYERS; n++) {
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_uvs[n] = other._uvs[n];
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}
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_data = other._data;
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_buffer = other._buffer;
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_layer_data = other._layer_data;
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_obs_data = other._obs_data;
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}
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void gs::vertex_buffer::operator=(vertex_buffer const&& other) noexcept
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{
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// Move Assignment
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/// First self-destruct (semi-destruct itself).
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if (_positions) {
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util::free_aligned(_positions);
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_positions = nullptr;
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}
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if (_normals) {
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util::free_aligned(_normals);
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_normals = nullptr;
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}
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if (_tangents) {
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util::free_aligned(_tangents);
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_tangents = nullptr;
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}
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if (_colors) {
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util::free_aligned(_colors);
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_colors = nullptr;
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}
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for (std::size_t n = 0; n < MAXIMUM_UVW_LAYERS; n++) {
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if (_uvs[n]) {
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util::free_aligned(_uvs[n]);
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_uvs[n] = nullptr;
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}
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}
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if (_layer_data) {
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util::free_aligned(_layer_data);
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_layer_data = nullptr;
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}
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if (_data) {
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memset(_data, 0, sizeof(gs_vb_data));
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if (!_buffer) {
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gs_vbdata_destroy(_data);
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_data = nullptr;
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}
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}
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if (_buffer) {
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auto gctx = gs::context();
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gs_vertexbuffer_destroy(_buffer);
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_buffer = nullptr;
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}
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void gs::vertex_buffer::operator=(vertex_buffer const&& other)
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{ // Move Assignment
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finalize();
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/// Then assign new values.
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_capacity = other._capacity;
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_size = other._size;
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_layers = other._layers;
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_buffer = other._buffer;
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_data = other._data;
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_positions = other._positions;
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_normals = other._normals;
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_tangents = other._tangents;
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_colors = other._colors;
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_uv_layers = other._uv_layers;
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for (std::size_t n = 0; n < MAXIMUM_UVW_LAYERS; n++) {
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_uvs[n] = other._uvs[n];
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}
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_data = other._data;
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_buffer = other._buffer;
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_layer_data = other._layer_data;
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_obs_data = other._obs_data;
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}
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void gs::vertex_buffer::resize(std::uint32_t new_size)
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void gs::vertex_buffer::resize(uint32_t size)
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{
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if (new_size > _capacity) {
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throw std::out_of_range("new_size out of range");
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if (size > _capacity) {
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throw std::out_of_range("size larger than capacity");
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}
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_size = new_size;
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_size = size;
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}
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std::uint32_t gs::vertex_buffer::size()
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uint32_t gs::vertex_buffer::size()
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{
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return _size;
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}
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uint32_t gs::vertex_buffer::capacity()
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{
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return _capacity;
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}
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bool gs::vertex_buffer::empty()
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{
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return _size == 0;
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}
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const gs::vertex gs::vertex_buffer::at(std::uint32_t idx)
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const gs::vertex gs::vertex_buffer::at(uint32_t idx)
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{
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if (idx >= _size) {
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throw std::out_of_range("idx out of range");
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@ -283,17 +257,17 @@ const gs::vertex gs::vertex_buffer::at(std::uint32_t idx)
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return vtx;
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}
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const gs::vertex gs::vertex_buffer::operator[](std::uint32_t const pos)
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const gs::vertex gs::vertex_buffer::operator[](uint32_t const pos)
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{
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return at(pos);
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}
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void gs::vertex_buffer::set_uv_layers(std::uint32_t layers)
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void gs::vertex_buffer::set_uv_layers(uint8_t layers)
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{
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_layers = layers;
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}
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std::uint32_t gs::vertex_buffer::get_uv_layers()
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uint8_t gs::vertex_buffer::get_uv_layers()
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{
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return _layers;
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}
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@ -318,7 +292,7 @@ uint32_t* gs::vertex_buffer::get_colors()
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return _colors;
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}
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vec4* gs::vertex_buffer::get_uv_layer(std::size_t idx)
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vec4* gs::vertex_buffer::get_uv_layer(uint8_t idx)
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{
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if (idx >= _layers) {
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throw std::out_of_range("idx out of range");
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@ -328,40 +302,12 @@ vec4* gs::vertex_buffer::get_uv_layer(std::size_t idx)
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gs_vertbuffer_t* gs::vertex_buffer::update(bool refreshGPU)
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{
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if (!refreshGPU)
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return _buffer;
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if (_size > _capacity)
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throw std::out_of_range("size is larger than capacity");
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// Update VertexBuffer data.
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if (refreshGPU) {
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auto gctx = gs::context();
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_data = gs_vertexbuffer_get_data(_buffer);
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memset(_data, 0, sizeof(gs_vb_data));
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_data->num = _capacity;
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_data->points = _positions;
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_data->normals = _normals;
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_data->tangents = _tangents;
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_data->colors = _colors;
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_data->num_tex = _layers;
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_data->tvarray = _layer_data;
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for (std::size_t n = 0; n < _layers; n++) {
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_layer_data[n].array = _uvs[n];
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_layer_data[n].width = 4;
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gs_vertexbuffer_flush_direct(_buffer.get(), _data.get());
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_obs_data = gs_vertexbuffer_get_data(_buffer.get());
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}
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// Update GPU
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gs_vertexbuffer_flush(_buffer);
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// WORKAROUND: OBS Studio 20.x and below incorrectly deletes data that it doesn't own.
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memset(_data, 0, sizeof(gs_vb_data));
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_data->num = _capacity;
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_data->num_tex = _layers;
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for (std::uint32_t n = 0; n < _layers; n++) {
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_layer_data[n].width = 4;
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}
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return _buffer;
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return _buffer.get();
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}
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gs_vertbuffer_t* gs::vertex_buffer::update()
|
||||
|
|
|
|||
|
|
@ -25,23 +25,27 @@
|
|||
|
||||
namespace gs {
|
||||
class vertex_buffer {
|
||||
std::uint32_t _size;
|
||||
std::uint32_t _capacity;
|
||||
std::uint32_t _layers;
|
||||
uint32_t _capacity;
|
||||
uint32_t _size;
|
||||
uint8_t _layers;
|
||||
|
||||
// OBS GS Data
|
||||
std::shared_ptr<gs_vertbuffer_t> _buffer;
|
||||
std::shared_ptr<gs_vb_data> _data;
|
||||
|
||||
// Memory Storage
|
||||
vec3* _positions;
|
||||
vec3* _normals;
|
||||
vec3* _tangents;
|
||||
uint32_t* _colors;
|
||||
gs_tvertarray* _uv_layers;
|
||||
vec4* _uvs[MAXIMUM_UVW_LAYERS];
|
||||
|
||||
// OBS GS Data
|
||||
gs_vb_data* _data;
|
||||
gs_vertbuffer_t* _buffer;
|
||||
gs_tvertarray* _layer_data;
|
||||
// OBS compatability
|
||||
gs_vb_data* _obs_data;
|
||||
|
||||
void initialize(std::size_t capacity, std::size_t layers);
|
||||
void initialize(uint32_t capacity, uint8_t layers);
|
||||
void finalize();
|
||||
|
||||
public:
|
||||
virtual ~vertex_buffer();
|
||||
|
|
@ -49,14 +53,14 @@ namespace gs {
|
|||
/*!
|
||||
* \brief Create a Vertex Buffer with the default number of Vertices.
|
||||
*/
|
||||
vertex_buffer();
|
||||
vertex_buffer() : vertex_buffer(MAXIMUM_VERTICES, MAXIMUM_UVW_LAYERS) {}
|
||||
|
||||
/*!
|
||||
* \brief Create a Vertex Buffer with a specific number of Vertices.
|
||||
*
|
||||
* \param vertices Number of vertices to store.
|
||||
*/
|
||||
vertex_buffer(std::uint32_t vertices);
|
||||
vertex_buffer(uint32_t vertices) : vertex_buffer(vertices, MAXIMUM_UVW_LAYERS) {}
|
||||
|
||||
/*!
|
||||
* \brief Create a Vertex Buffer with a specific number of Vertices and uv layers.
|
||||
|
|
@ -64,7 +68,7 @@ namespace gs {
|
|||
* \param vertices Number of vertices to store.
|
||||
* \param layers Number of uv layers to store.
|
||||
*/
|
||||
vertex_buffer(std::uint32_t vertices, std::uint8_t layers);
|
||||
vertex_buffer(uint32_t vertices, uint8_t layers);
|
||||
|
||||
/*!
|
||||
* \brief Create a copy of a Vertex Buffer
|
||||
|
|
@ -90,7 +94,7 @@ namespace gs {
|
|||
*
|
||||
* \param other
|
||||
*/
|
||||
void operator=(vertex_buffer const& other) = delete;
|
||||
void operator=(vertex_buffer const& other);
|
||||
|
||||
// Move Constructor & Assignments
|
||||
|
||||
|
|
@ -108,21 +112,23 @@ namespace gs {
|
|||
*
|
||||
* \param other
|
||||
*/
|
||||
void operator=(vertex_buffer const&& other) noexcept;
|
||||
void operator=(vertex_buffer const&& other);
|
||||
|
||||
void resize(std::uint32_t new_size);
|
||||
void resize(uint32_t new_size);
|
||||
|
||||
std::uint32_t size();
|
||||
uint32_t size();
|
||||
|
||||
uint32_t capacity();
|
||||
|
||||
bool empty();
|
||||
|
||||
const gs::vertex at(std::uint32_t idx);
|
||||
const gs::vertex at(uint32_t idx);
|
||||
|
||||
const gs::vertex operator[](std::uint32_t const pos);
|
||||
const gs::vertex operator[](uint32_t const pos);
|
||||
|
||||
void set_uv_layers(std::uint32_t layers);
|
||||
void set_uv_layers(uint8_t layers);
|
||||
|
||||
std::uint32_t get_uv_layers();
|
||||
uint8_t get_uv_layers();
|
||||
|
||||
/*!
|
||||
* \brief Directly access the positions buffer
|
||||
|
|
@ -162,7 +168,7 @@ namespace gs {
|
|||
*
|
||||
* \return A <vec4*> that points at the first vertex's uv.
|
||||
*/
|
||||
vec4* get_uv_layer(std::size_t idx);
|
||||
vec4* get_uv_layer(uint8_t idx);
|
||||
|
||||
gs_vertbuffer_t* update();
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue