Making a graceful fallback for missing textures.

Change-Id: Ib628d8344ab9bdd5f82c61a599c42a4c7ca3052e

4 files changed, 10 insertions, 9 deletions

diff --git a/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/SceneManager.java b/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/SceneManager.java
index 0f14486..f77f483 100644
--- a/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/SceneManager.java
+++ b/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/SceneManager.java
@@ -111,8 +111,8 @@ public class SceneManager extends SceneGraphBase {
         if (sSceneManager == null) {
             return null;
         }
-        if (sSceneManager.sDefaultCube != null) {
-            sSceneManager.sDefault2D = getDefault(true);
+        if (sSceneManager.sDefaultCube == null) {
+            sSceneManager.sDefaultCube = getDefault(true);
         }
         return sSceneManager.sDefaultCube;
     }
@@ -156,6 +156,9 @@ public class SceneManager extends SceneGraphBase {
 
     public static Allocation loadCubemap(String name, RenderScriptGL rs, Resources res) {
         Bitmap b = loadBitmap(name, res);
+        if (b == null) {
+            return null;
+        }
         return Allocation.createCubemapFromBitmap(rs, b,
                                                   MipmapControl.MIPMAP_ON_SYNC_TO_TEXTURE,
                                                   Allocation.USAGE_GRAPHICS_TEXTURE);
@@ -163,6 +166,9 @@ public class SceneManager extends SceneGraphBase {
 
     public static Allocation loadTexture2D(String name, RenderScriptGL rs, Resources res) {
         Bitmap b = loadBitmap(name, res);
+        if (b == null) {
+            return null;
+        }
         return Allocation.createFromBitmap(rs, b,
                                            Allocation.MipmapControl.MIPMAP_ON_SYNC_TO_TEXTURE,
                                            Allocation.USAGE_GRAPHICS_TEXTURE);
@@ -336,10 +342,6 @@ public class SceneManager extends SceneGraphBase {
         mRenderLoop.set_gVertexParamsScript(mVertexParamsScript);
         mRenderLoop.set_gCullScript(mCullScript);
 
-        Allocation checker = Allocation.createFromBitmapResource(mRS, mRes, R.drawable.checker,
-                                                         MipmapControl.MIPMAP_ON_SYNC_TO_TEXTURE,
-                                                         Allocation.USAGE_GRAPHICS_TEXTURE);
-        mRenderLoop.set_gTGrid(checker);
         mRenderLoop.set_gPFSBackground(ProgramStore.BLEND_NONE_DEPTH_TEST(mRS));
     }
 
diff --git a/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/Texture2D.java b/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/Texture2D.java
index 0809df8..8fae9d9 100644
--- a/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/Texture2D.java
+++ b/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/Texture2D.java
@@ -53,7 +53,7 @@ public class Texture2D extends TextureBase {
     }
 
     public void setTexture(Allocation tex) {
-        mData.texture = tex;
+        mData.texture = tex != null ? tex : SceneManager.getDefaultTex2D();
         if (mField != null) {
             mField.set_texture(0, mData.texture, true);
         }
diff --git a/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/TextureCube.java b/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/TextureCube.java
index 05870e7..12c81c2 100644
--- a/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/TextureCube.java
+++ b/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/TextureCube.java
@@ -60,7 +60,7 @@ public class TextureCube extends TextureBase {
     }
 
     public void setTexture(Allocation tex) {
-        mData.texture = tex;
+        mData.texture = tex != null ? tex : SceneManager.getDefaultTexCube();
         if (mField != null) {
             mField.set_texture(0, mData.texture, true);
         }
diff --git a/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/render.rs b/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/render.rs
index aea0113..d8d48b3 100644
--- a/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/render.rs
+++ b/tests/RenderScriptTests/SceneGraph/src/com/android/scenegraph/render.rs
@@ -37,7 +37,6 @@ rs_allocation gRenderableObjects;
 rs_allocation gRenderPasses;
 
 // Temporary shaders
-rs_allocation gTGrid;
 rs_program_store gPFSBackground;
 
 uint32_t *gFrontToBack;