From 1e200620d673af4acdd2d128ed6e390df001aacf Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Wed, 10 Oct 2012 00:34:30 +0200
Subject: IPHONE: Fix cursor artifacts when linear filterting is used.

We need to set a proper texture coordinate wrap parameter for this.
---
 backends/platform/iphone/iphone_video.mm | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'backends/platform/iphone')

diff --git a/backends/platform/iphone/iphone_video.mm b/backends/platform/iphone/iphone_video.mm
index 54e5d633d2..2ae1b0e692 100644
--- a/backends/platform/iphone/iphone_video.mm
+++ b/backends/platform/iphone/iphone_video.mm
@@ -268,6 +268,11 @@ const char *iPhone_getDocumentsDir() {
 
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter); printOpenGLError();
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter); printOpenGLError();
+	// We use GL_CLAMP_TO_EDGE here to avoid artifacts when linear filtering
+	// is used. If we would not use this for example the cursor in Loom would
+	// have a line/border artifact on the right side of the covered rect.
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); printOpenGLError();
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); printOpenGLError();
 }
 
 - (void)setGraphicsMode {
-- 
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