From 22e648bb1a5e8fe6e427efc906194edbb9ce6ed8 Mon Sep 17 00:00:00 2001
From: Henrik Rydgard <hrydgard@gmail.com>
Date: Sun, 31 Mar 2013 10:03:05 +0200
Subject: [PATCH] png texture: set clamp mode if no mipmaps requested, and
 don't actually generate mips...

---
 gfx/texture.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/gfx/texture.cpp b/gfx/texture.cpp
index ac60e55a66..c214dbaef5 100644
--- a/gfx/texture.cpp
+++ b/gfx/texture.cpp
@@ -150,12 +150,14 @@ bool Texture::LoadPNG(const uint8_t *data, size_t size, bool genMips) {
 		return false;
 	}
 	GL_CHECK();
+	// TODO: should check for power of 2 tex size and disallow genMips when not.
 	glGenTextures(1, &id_);
 	glBindTexture(GL_TEXTURE_2D, id_);
-	SetTextureParameters(genMips ? ZIM_GEN_MIPS : 0);
+	SetTextureParameters(genMips ? ZIM_GEN_MIPS : ZIM_CLAMP);
 	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width_, height_, 0, 
 		GL_RGBA, GL_UNSIGNED_BYTE, image_data);
-	glGenerateMipmap(GL_TEXTURE_2D);
+	if (genMips) 
+		glGenerateMipmap(GL_TEXTURE_2D);
 	GL_CHECK();
 	free(image_data);
 	return true;