86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
#include "StarAssetTextureGroup.hpp"
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#include "StarIterator.hpp"
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#include "StarTime.hpp"
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#include "StarRoot.hpp"
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#include "StarAssets.hpp"
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#include "StarImageMetadataDatabase.hpp"
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namespace Star {
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AssetTextureGroup::AssetTextureGroup(TextureGroupPtr textureGroup)
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: m_textureGroup(move(textureGroup)) {
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m_reloadTracker = make_shared<TrackerListener>();
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Root::singleton().registerReloadListener(m_reloadTracker);
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}
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TexturePtr AssetTextureGroup::loadTexture(AssetPath const& imagePath) {
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return loadTexture(imagePath, false);
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}
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TexturePtr AssetTextureGroup::tryTexture(AssetPath const& imagePath) {
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return loadTexture(imagePath, true);
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}
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bool AssetTextureGroup::textureLoaded(AssetPath const& imagePath) const {
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return m_textureMap.contains(imagePath);
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}
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void AssetTextureGroup::cleanup(int64_t textureTimeout) {
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if (m_reloadTracker->pullTriggered()) {
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m_textureMap.clear();
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m_textureDeduplicationMap.clear();
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} else {
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int64_t time = Time::monotonicMilliseconds();
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List<Texture const*> liveTextures;
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filter(m_textureMap, [&](auto const& pair) {
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if (time - pair.second.second < textureTimeout) {
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liveTextures.append(pair.second.first.get());
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return true;
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}
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return false;
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});
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liveTextures.sort();
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eraseWhere(m_textureDeduplicationMap, [&](auto const& p) {
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return !liveTextures.containsSorted(p.second.get());
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});
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}
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}
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TexturePtr AssetTextureGroup::loadTexture(AssetPath const& imagePath, bool tryTexture) {
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if (auto p = m_textureMap.ptr(imagePath)) {
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p->second = Time::monotonicMilliseconds();
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return p->first;
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}
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auto assets = Root::singleton().assets();
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ImageConstPtr image;
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if (tryTexture)
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image = assets->tryImage(imagePath);
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else
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image = assets->image(imagePath);
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if (!image)
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return {};
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// Assets will return the same image ptr if two different asset paths point
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// to the same underlying cached image. We should not make duplicate entries
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// in the texture group for these, so we keep track of the image pointers
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// returned to deduplicate them.
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if (auto existingTexture = m_textureDeduplicationMap.value(image)) {
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m_textureMap.add(imagePath, {existingTexture, Time::monotonicMilliseconds()});
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return existingTexture;
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} else {
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auto texture = m_textureGroup->create(*image);
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m_textureMap.add(imagePath, {texture, Time::monotonicMilliseconds()});
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m_textureDeduplicationMap.add(image, texture);
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return texture;
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}
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}
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}
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