From 2bca62b26ef0199aec791aa36b2107dfdd5e4135 Mon Sep 17 00:00:00 2001
From: raven02 <jacky.kktsui@yahoo.com.hk>
Date: Mon, 11 Nov 2013 21:12:43 +0800
Subject: [PATCH] Don't reset texture width/height unless the size is different

---
 GPU/GLES/GLES_GPU.cpp | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/GPU/GLES/GLES_GPU.cpp b/GPU/GLES/GLES_GPU.cpp
index b1f359c88d..84ca8c4368 100644
--- a/GPU/GLES/GLES_GPU.cpp
+++ b/GPU/GLES/GLES_GPU.cpp
@@ -1042,9 +1042,15 @@ void GLES_GPU::ExecuteOpInternal(u32 op, u32 diff) {
 		}
 
 	case GE_CMD_TEXSIZE0:
-		gstate_c.curTextureWidth = gstate.getTextureWidth(0);
-		gstate_c.curTextureHeight = gstate.getTextureHeight(0);
-		shaderManager_->DirtyUniform(DIRTY_UVSCALEOFFSET);
+		// Render to texture may have overridden the width/height.
+		// Don't reset it unless the size is different / the texture has changed.
+		if (diff || gstate_c.textureChanged) {
+			gstate_c.curTextureWidth = gstate.getTextureWidth(0);
+			gstate_c.curTextureHeight = gstate.getTextureHeight(0);
+			shaderManager_->DirtyUniform(DIRTY_UVSCALEOFFSET);
+			// We will need to reset the texture now.
+			gstate_c.textureChanged = true;
+		}
 		//fall thru - ignoring the mipmap sizes for now
 
 	case GE_CMD_TEXSIZE1:
@@ -1054,7 +1060,8 @@ void GLES_GPU::ExecuteOpInternal(u32 op, u32 diff) {
 	case GE_CMD_TEXSIZE5:
 	case GE_CMD_TEXSIZE6:
 	case GE_CMD_TEXSIZE7:
-		gstate_c.textureChanged = true;
+		if (diff)
+			gstate_c.textureChanged = true;
 		break;
 
 	case GE_CMD_ZBUFPTR: