Clamp textures with alpha to transparent color

xbmc · Jun 13, 2022 · 0cd17af · 0cd17af
1 parent 7406342
commit 0cd17af
Showing 1 changed file with 21 additions and 2 deletions.
diff --git a/xbmc/guilib/TextureGL.cpp b/xbmc/guilib/TextureGL.cpp
@@ -88,8 +88,27 @@ void CGLTexture::LoadToGPU()
   }
 
   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
-  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+#ifdef HAS_GL
+  if (HasAlpha())
+#else
+  if (HasAlpha() &&
+      (CServiceBroker::GetRenderSystem()->IsExtSupported("GL_OES_texture_border_clamp") ||
+       CServiceBroker::GetRenderSystem()->IsExtSupported("GL_EXT_texture_border_clamp") ||
+       CServiceBroker::GetRenderSystem()->IsExtSupported("GL_NV_texture_border_clamp")))
+#endif
+  {
+    float color[] = {0.0f, 0.0f, 0.0f, 0.0f};
+    glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, color);
+
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
+  }
+  else
+  {
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+  }
 
   unsigned int maxSize = CServiceBroker::GetRenderSystem()->GetMaxTextureSize();
   if (m_textureHeight > maxSize)