From 79e3c66514f2df67c8c8114d67d041e7e9ce1e9e Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Sun, 7 Apr 2013 22:30:06 -0700
Subject: [PATCH 1/2] Adjust FBO decimation to optimize for creation.

But, keep aggressively decimating for a few frames.
---
 GPU/GLES/Framebuffer.cpp | 19 ++++++++++++++++---
 GPU/GLES/Framebuffer.h   |  2 +-
 2 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/GPU/GLES/Framebuffer.cpp b/GPU/GLES/Framebuffer.cpp
index 87faa73376..bdb596bc5b 100644
--- a/GPU/GLES/Framebuffer.cpp
+++ b/GPU/GLES/Framebuffer.cpp
@@ -58,7 +58,9 @@ static const char basic_vs[] =
 
 // Aggressively delete unused FBO:s to save gpu memory.
 enum {
-	FBO_OLD_AGE = 5
+	FBO_OLD_AGE = 10,
+	FBO_OLD_FORCE_AGE = 3,
+	FBO_OLD_FORCE_RETAIN_FRAMES = 6,
 };
 
 static bool MaskedEqual(u32 addr1, u32 addr2) {
@@ -388,6 +390,7 @@ void FramebufferManager::SetRenderFrameBuffer() {
 		currentRenderVfb_ = vfb;
 
 		INFO_LOG(HLE, "Creating FBO for %08x : %i x %i x %i", vfb->fb_address, vfb->width, vfb->height, vfb->format);
+		DecimateFBOs(true);
 
 	// We already have it!
 	} else if (vfb != currentRenderVfb_) {
@@ -552,7 +555,17 @@ std::vector<FramebufferInfo> FramebufferManager::GetFramebufferList() {
 	return list;
 }
 
-void FramebufferManager::DecimateFBOs() {
+void FramebufferManager::DecimateFBOs(bool force) {
+	static int retainForce = 0;
+	if (force)
+		retainForce = FBO_OLD_FORCE_RETAIN_FRAMES;
+
+	int oldAge = FBO_OLD_AGE;
+	if (retainForce) {
+		--retainForce;
+		oldAge = FBO_OLD_FORCE_AGE;
+	}
+
 	fbo_unbind();
 	for (auto iter = vfbs_.begin(); iter != vfbs_.end();) {
 		VirtualFramebuffer *vfb = *iter;
@@ -561,7 +574,7 @@ void FramebufferManager::DecimateFBOs() {
 			continue;
 		}
 		int age = gpuStats.numFrames - (*iter)->last_frame_used;
-		if (age > FBO_OLD_AGE) {
+		if (age > oldAge) {
 			INFO_LOG(HLE, "Decimating FBO for %08x (%i x %i x %i), age %i", vfb->fb_address, vfb->width, vfb->height, vfb->format, age)
 			if (vfb->fbo) {
 				textureCache_->NotifyFramebufferDestroyed(vfb->fb_address, vfb);
diff --git a/GPU/GLES/Framebuffer.h b/GPU/GLES/Framebuffer.h
index 5f9785b0f2..220e447ffe 100644
--- a/GPU/GLES/Framebuffer.h
+++ b/GPU/GLES/Framebuffer.h
@@ -89,7 +89,7 @@ public:
 	void DrawActiveTexture(float x, float y, float w, float h, bool flip = false);
 
 	void DestroyAllFBOs();
-	void DecimateFBOs();
+	void DecimateFBOs(bool force = false);
 
 	void BeginFrame();
 	void EndFrame();

From 23c0e7f31979d2a48600bb29c0567e4d6fd33fb0 Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Mon, 8 Apr 2013 00:45:21 -0700
Subject: [PATCH 2/2] Change FBO age back to 5, gets in a create loop...

---
 GPU/GLES/Framebuffer.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/GPU/GLES/Framebuffer.cpp b/GPU/GLES/Framebuffer.cpp
index bdb596bc5b..097c20c21f 100644
--- a/GPU/GLES/Framebuffer.cpp
+++ b/GPU/GLES/Framebuffer.cpp
@@ -59,7 +59,7 @@ static const char basic_vs[] =
 // Aggressively delete unused FBO:s to save gpu memory.
 enum {
 	FBO_OLD_AGE = 10,
-	FBO_OLD_FORCE_AGE = 3,
+	FBO_OLD_FORCE_AGE = 5,
 	FBO_OLD_FORCE_RETAIN_FRAMES = 6,
 };