Adjust UVs for 1x1 texture regions.

[mikumikustudio/libgdx-mikumikustudio.git] / gdx / src / com / badlogic / gdx / graphics / g2d / TextureRegion.java

diff --git a/gdx/src/com/badlogic/gdx/graphics/g2d/TextureRegion.java b/gdx/src/com/badlogic/gdx/graphics/g2d/TextureRegion.java
index 532a372..6777bd9 100644 (file)
--- a/gdx/src/com/badlogic/gdx/graphics/g2d/TextureRegion.java
+++ b/gdx/src/com/badlogic/gdx/graphics/g2d/TextureRegion.java
@@ -87,12 +87,22 @@ public class TextureRegion {
        }\r
 \r
        public void setRegion (float u, float v, float u2, float v2) {\r
+               int texWidth = texture.getWidth(), texHeight = texture.getHeight();\r
+               regionWidth = Math.round(Math.abs(u2 - u) * texWidth);\r
+               regionHeight = Math.round(Math.abs(v2 - v) * texHeight);\r
+\r
+               // For a 1x1 region, adjust UVs to pixel center to avoid filtering artifacts on AMD GPUs when drawing stretched.\r
+               if (regionWidth == 1 && regionHeight == 1) {\r
+                       u += 0.5f / texWidth;\r
+                       u2 = u;\r
+                       v += 0.5f / texHeight;\r
+                       v2 = v;\r
+               }\r
+\r
                this.u = u;\r
                this.v = v;\r
                this.u2 = u2;\r
                this.v2 = v2;\r
-               regionWidth = Math.round(Math.abs(u2 - u) * texture.getWidth());\r
-               regionHeight = Math.round(Math.abs(v2 - v) * texture.getHeight());\r
        }\r
 \r
        /** Sets the texture and coordinates to the specified region. */\r