81 lines
1.8 KiB
C++
81 lines
1.8 KiB
C++
#include "opengltexturecache.h"
|
|
|
|
OpenGLTextureCache::~OpenGLTextureCache()
|
|
{
|
|
foreach (Reference* ref, existing_references_) {
|
|
ref->ParentKilled();
|
|
}
|
|
}
|
|
|
|
OpenGLTextureCache::ReferencePtr OpenGLTextureCache::Get(QOpenGLContext* ctx, const VideoRenderingParams ¶ms, const void *data)
|
|
{
|
|
OpenGLTexturePtr texture = nullptr;
|
|
|
|
lock_.lock();
|
|
|
|
// Iterate through textures and see if we have one that matches these parameters
|
|
for (int i=0;i<available_textures_.size();i++) {
|
|
OpenGLTexturePtr test = available_textures_.at(i);
|
|
|
|
if (test->width() == params.effective_width()
|
|
&& test->height() == params.effective_height()
|
|
&& test->format() == params.format()) {
|
|
texture = test;
|
|
available_textures_.removeAt(i);
|
|
break;
|
|
}
|
|
}
|
|
|
|
// If we didn't find a texture, we'll need to create one
|
|
if (!texture) {
|
|
texture = std::make_shared<OpenGLTexture>();
|
|
texture->Create(ctx, params.effective_width(), params.effective_height(), params.format());
|
|
}
|
|
|
|
ReferencePtr ref = std::make_shared<Reference>(this, texture);
|
|
existing_references_.append(ref.get());
|
|
|
|
lock_.unlock();
|
|
|
|
if (data) {
|
|
texture->Upload(data);
|
|
}
|
|
|
|
return ref;
|
|
}
|
|
|
|
void OpenGLTextureCache::Relinquish(OpenGLTextureCache::Reference *ref)
|
|
{
|
|
OpenGLTexturePtr tex = ref->texture();
|
|
|
|
lock_.lock();
|
|
|
|
existing_references_.removeOne(ref);
|
|
available_textures_.append(tex);
|
|
|
|
lock_.unlock();
|
|
}
|
|
|
|
OpenGLTextureCache::Reference::Reference(OpenGLTextureCache *parent, OpenGLTexturePtr texture) :
|
|
parent_(parent),
|
|
texture_(texture)
|
|
{
|
|
}
|
|
|
|
OpenGLTextureCache::Reference::~Reference()
|
|
{
|
|
if (parent_) {
|
|
parent_->Relinquish(this);
|
|
}
|
|
}
|
|
|
|
OpenGLTexturePtr OpenGLTextureCache::Reference::texture()
|
|
{
|
|
return texture_;
|
|
}
|
|
|
|
void OpenGLTextureCache::Reference::ParentKilled()
|
|
{
|
|
parent_ = nullptr;
|
|
}
|