From b9303e5494942ca2f60bf08f3ea248e3c9591cfa Mon Sep 17 00:00:00 2001
From: Leon Styhre <leon@leonstyhre.com>
Date: Wed, 7 Sep 2022 21:17:01 +0200
Subject: [PATCH] Mipmapping is now taken into consideration when calculating
 the VRAM usage.

---
 es-core/src/resources/TextureData.cpp | 14 ++++++++++----
 es-core/src/resources/TextureData.h   |  2 +-
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/es-core/src/resources/TextureData.cpp b/es-core/src/resources/TextureData.cpp
index ce784acd6..fc7da571c 100644
--- a/es-core/src/resources/TextureData.cpp
+++ b/es-core/src/resources/TextureData.cpp
@@ -38,8 +38,8 @@ TextureData::TextureData(bool tile)
     , mScalableNonAspect {false}
     , mHasRGBAData {false}
     , mPendingRasterization {false}
-    , mLinearMagnify {false}
     , mMipmapping {false}
+    , mLinearMagnify {false}
 {
 }
 
@@ -314,8 +314,14 @@ void TextureData::setSourceSize(float width, float height)
 
 size_t TextureData::getVRAMUsage()
 {
-    if (mHasRGBAData || mTextureID != 0)
-        return mWidth * mHeight * 4;
-    else
+    if (mHasRGBAData || mTextureID != 0) {
+        // The estimated increase in VRAM usage with mipmapping enabled is 33%
+        if (mMipmapping)
+            return {static_cast<size_t>(static_cast<float>(mWidth * mHeight * 4) * 1.33f)};
+        else
+            return mWidth * mHeight * 4;
+    }
+    else {
         return 0;
+    }
 }
diff --git a/es-core/src/resources/TextureData.h b/es-core/src/resources/TextureData.h
index dd5d85be5..57f435d29 100644
--- a/es-core/src/resources/TextureData.h
+++ b/es-core/src/resources/TextureData.h
@@ -99,8 +99,8 @@ private:
     std::atomic<bool> mScalableNonAspect;
     std::atomic<bool> mHasRGBAData;
     std::atomic<bool> mPendingRasterization;
+    std::atomic<bool> mMipmapping;
     bool mLinearMagnify;
-    bool mMipmapping;
     bool mReloadable;
 };