From 8c632ca0adcd085c2888bc77479ae0ece7316441 Mon Sep 17 00:00:00 2001
From: Logan McNaughton <logan@bacoosta.com>
Date: Mon, 6 Jun 2016 22:58:09 -0600
Subject: [PATCH] Fix Texture Cache on Raspberry Pi

The Raspberry Pi only supports 32768 GPU memory allocations
see https://github.com/raspberrypi/firmware/issues/611

Each texture takes 2 allocs, so the max is around 16000, I've set it to 15000 to be safe
---
 src/Textures.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/Textures.cpp b/src/Textures.cpp
index 5af07062..5ed969ff 100644
--- a/src/Textures.cpp
+++ b/src/Textures.cpp
@@ -522,6 +522,16 @@ void TextureCache::destroy()
 
 void TextureCache::_checkCacheSize()
 {
+#ifdef VC
+	if (m_textures.size() > 15000) {
+		CachedTexture& piTex = m_textures.back();
+		m_cachedBytes -= piTex.textureBytes;
+		glDeleteTextures(1, &piTex.glName);
+		m_lruTextureLocations.erase(piTex.crc);
+		m_textures.pop_back();
+	}
+#endif
+
 	if (m_cachedBytes <= m_maxBytes)
 		return;