Merge "Isolate SpriteIcon into its own file." am: 38a831c1e3

Original change: undetermined

Change-Id: I136cf55c2fd1346dacb0774d8fb53383b2ae1202

1 files changed, 65 insertions, 0 deletions

diff --git a/libs/input/SpriteIcon.cpp b/libs/input/SpriteIcon.cpp
new file mode 100644
index 000000000000..10cc458b9289
--- /dev/null
+++ b/libs/input/SpriteIcon.cpp
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "SpriteIcon.h"
+
+#include <SkBitmap.h>
+#include <SkCanvas.h>
+#include <SkColor.h>
+#include <SkPaint.h>
+
+#include <android/native_window.h>
+#include <log/log.h>
+
+namespace android {
+
+bool SpriteIcon::draw(sp<Surface> surface) const {
+    ANativeWindow_Buffer outBuffer;
+    status_t status = surface->lock(&outBuffer, NULL);
+    if (status) {
+        ALOGE("Error %d locking sprite surface before drawing.", status);
+        return false;
+    }
+
+    SkBitmap surfaceBitmap;
+    ssize_t bpr = outBuffer.stride * bytesPerPixel(outBuffer.format);
+    surfaceBitmap.installPixels(SkImageInfo::MakeN32Premul(outBuffer.width, outBuffer.height),
+                                outBuffer.bits, bpr);
+
+    SkCanvas surfaceCanvas(surfaceBitmap);
+
+    SkPaint paint;
+    paint.setBlendMode(SkBlendMode::kSrc);
+    surfaceCanvas.drawBitmap(bitmap, 0, 0, &paint);
+
+    if (outBuffer.width > width()) {
+        paint.setColor(0); // transparent fill color
+        surfaceCanvas.drawRect(SkRect::MakeLTRB(width(), 0, outBuffer.width, height()), paint);
+    }
+    if (outBuffer.height > height()) {
+        paint.setColor(0); // transparent fill color
+        surfaceCanvas.drawRect(SkRect::MakeLTRB(0, height(), outBuffer.width, outBuffer.height),
+                               paint);
+    }
+
+    status = surface->unlockAndPost();
+    if (status) {
+        ALOGE("Error %d unlocking and posting sprite surface after drawing.", status);
+    }
+    return !status;
+}
+
+} // namespace android