1 files changed, 71 insertions, 0 deletions
diff --git a/gfx/skia/skia/src/codec/SkSampler.cpp b/gfx/skia/skia/src/codec/SkSampler.cpp
new file mode 100644
index 0000000000..3a6832c183
--- /dev/null
+++ b/gfx/skia/skia/src/codec/SkSampler.cpp
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "src/codec/SkSampler.h"
+
+#include "include/codec/SkCodec.h"
+#include "include/core/SkColorType.h"
+#include "include/core/SkImageInfo.h"
+#include "include/private/base/SkTemplates.h"
+#include "src/codec/SkCodecPriv.h"
+#include "src/core/SkOpts.h"
+
+#include <cstdint>
+#include <cstring>
+
+void SkSampler::Fill(const SkImageInfo& info, void* dst, size_t rowBytes,
+                     SkCodec::ZeroInitialized zeroInit) {
+    SkASSERT(dst != nullptr);
+
+    if (SkCodec::kYes_ZeroInitialized == zeroInit) {
+        return;
+    }
+
+    const int width = info.width();
+    const int numRows = info.height();
+
+    // Use the proper memset routine to fill the remaining bytes
+    switch (info.colorType()) {
+        case kRGBA_8888_SkColorType:
+        case kBGRA_8888_SkColorType: {
+            uint32_t* dstRow = (uint32_t*) dst;
+            for (int row = 0; row < numRows; row++) {
+                SkOpts::memset32(dstRow, 0, width);
+                dstRow = SkTAddOffset<uint32_t>(dstRow, rowBytes);
+            }
+            break;
+        }
+        case kRGB_565_SkColorType: {
+            uint16_t* dstRow = (uint16_t*) dst;
+            for (int row = 0; row < numRows; row++) {
+                SkOpts::memset16(dstRow, 0, width);
+                dstRow = SkTAddOffset<uint16_t>(dstRow, rowBytes);
+            }
+            break;
+        }
+        case kGray_8_SkColorType: {
+            uint8_t* dstRow = (uint8_t*) dst;
+            for (int row = 0; row < numRows; row++) {
+                memset(dstRow, 0, width);
+                dstRow = SkTAddOffset<uint8_t>(dstRow, rowBytes);
+            }
+            break;
+        }
+        case kRGBA_F16_SkColorType: {
+            uint64_t* dstRow = (uint64_t*) dst;
+            for (int row = 0; row < numRows; row++) {
+                SkOpts::memset64(dstRow, 0, width);
+                dstRow = SkTAddOffset<uint64_t>(dstRow, rowBytes);
+            }
+            break;
+        }
+        default:
+            SkCodecPrintf("Error: Unsupported dst color type for fill().  Doing nothing.\n");
+            SkASSERT(false);
+            break;
+    }
+}