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Fix GlContext destruction of OpenGLFunctions causing crash

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This commit is contained in:
Dan Paulat 2025-05-13 22:43:56 -05:00
parent d6e574c877
commit 46cd75cff4
2 changed files with 36 additions and 27 deletions
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57
scwx-qt/source/scwx/qt/gl/gl_context.cpp
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@ -16,50 +16,48 @@ static const std::string logPrefix_ = "scwx::qt::gl::gl_context";
class GlContext::Impl
{
public:
explicit Impl() :
gl_ {},
shaderProgramMap_ {},
shaderProgramMutex_ {},
textureAtlas_ {GL_INVALID_INDEX},
textureMutex_ {}
{
}
~Impl() {}
explicit Impl() = default;
~Impl() = default;
Impl(const Impl&) = delete;
Impl& operator=(const Impl&) = delete;
Impl(const Impl&&) = delete;
Impl& operator=(const Impl&&) = delete;
void InitializeGL();
static std::size_t
GetShaderKey(std::initializer_list<std::pair<GLenum, std::string>> shaders);
gl::OpenGLFunctions gl_;
QOpenGLFunctions_3_0 gl30_;
gl::OpenGLFunctions* gl_ {nullptr};
QOpenGLFunctions_3_0* gl30_ {nullptr};
bool glInitialized_ {false};
std::unordered_map<std::size_t, std::shared_ptr<gl::ShaderProgram>>
shaderProgramMap_;
std::mutex shaderProgramMutex_;
shaderProgramMap_ {};
std::mutex shaderProgramMutex_ {};
GLuint textureAtlas_;
std::mutex textureMutex_;
GLuint textureAtlas_ {GL_INVALID_INDEX};
std::mutex textureMutex_ {};
std::uint64_t textureBufferCount_ {};
};
GlContext::GlContext() : p(std::make_unique<Impl>()) {}
GlContext::~GlContext() = default;
GlContext::~GlContext() {};
GlContext::GlContext(GlContext&&) noexcept = default;
GlContext& GlContext::operator=(GlContext&&) noexcept = default;
gl::OpenGLFunctions& GlContext::gl()
{
return p->gl_;
return *p->gl_;
}
QOpenGLFunctions_3_0& GlContext::gl30()
{
return p->gl30_;
return *p->gl30_;
}
std::uint64_t GlContext::texture_buffer_count() const
@ -74,10 +72,19 @@ void GlContext::Impl::InitializeGL()
return;
}
gl_.initializeOpenGLFunctions();
gl30_.initializeOpenGLFunctions();
// QOpenGLFunctions objects will not be freed. Since "destruction" takes
// place at the end of program execution, it is OK to intentionally leak
// these.
gl_.glGenTextures(1, &textureAtlas_);
// NOLINTBEGIN(cppcoreguidelines-owning-memory)
gl_ = new gl::OpenGLFunctions();
gl30_ = new QOpenGLFunctions_3_0();
// NOLINTEND(cppcoreguidelines-owning-memory)
gl_->initializeOpenGLFunctions();
gl30_->initializeOpenGLFunctions();
gl_->glGenTextures(1, &textureAtlas_);
glInitialized_ = true;
}
@ -102,7 +109,7 @@ std::shared_ptr<gl::ShaderProgram> GlContext::GetShaderProgram(
if (it == p->shaderProgramMap_.end())
{
shaderProgram = std::make_shared<gl::ShaderProgram>(p->gl_);
shaderProgram = std::make_shared<gl::ShaderProgram>(*p->gl_);
shaderProgram->Load(shaders);
p->shaderProgramMap_[key] = shaderProgram;
}
@ -125,7 +132,7 @@ GLuint GlContext::GetTextureAtlas()
if (p->textureBufferCount_ != textureAtlas.BuildCount())
{
p->textureBufferCount_ = textureAtlas.BuildCount();
textureAtlas.BufferAtlas(p->gl_, p->textureAtlas_);
textureAtlas.BufferAtlas(*p->gl_, p->textureAtlas_);
}
return p->textureAtlas_;
@ -140,8 +147,8 @@ void GlContext::StartFrame()
{
auto& gl = p->gl_;
gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl.glClear(GL_COLOR_BUFFER_BIT);
gl->glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl->glClear(GL_COLOR_BUFFER_BIT);
}
std::size_t GlContext::Impl::GetShaderKey(