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Unified Diff: src/images/SkImageGenerator.cpp

Issue 300263005: Revert "Revert of add colortable support to imagegenerator (https://codereview.chromium.org/3044430… (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: rebase Created 6 years, 7 months ago
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Index: src/images/SkImageGenerator.cpp
diff --git a/src/images/SkImageGenerator.cpp b/src/images/SkImageGenerator.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..daa55a3a4dcbd842f34264f79a8fa18a7f293353
--- /dev/null
+++ b/src/images/SkImageGenerator.cpp
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkImageGenerator.h"
+
+#ifndef SK_SUPPORT_LEGACY_IMAGEGENERATORAPI
+bool SkImageGenerator::getInfo(SkImageInfo* info) {
+ SkImageInfo dummy;
+ if (NULL == info) {
+ info = &dummy;
+ }
+ return this->onGetInfo(info);
+}
+
+bool SkImageGenerator::getPixels(const SkImageInfo& info, void* pixels, size_t rowBytes,
+ SkPMColor ctable[], int* ctableCount) {
+ if (kUnknown_SkColorType == info.colorType()) {
+ return false;
+ }
+ if (NULL == pixels) {
+ return false;
+ }
+ if (rowBytes < info.minRowBytes()) {
+ return false;
+ }
+
+ if (kIndex_8_SkColorType == info.colorType()) {
+ if (NULL == ctable || NULL == ctableCount) {
+ return false;
+ }
+ } else {
+ if (ctableCount) {
+ *ctableCount = 0;
+ }
+ ctableCount = NULL;
+ ctable = NULL;
+ }
+
+ bool success = this->onGetPixels(info, pixels, rowBytes, ctable, ctableCount);
+
+ if (success && ctableCount) {
+ SkASSERT(*ctableCount >= 0 && *ctableCount <= 256);
+ }
+ return success;
+}
+
+bool SkImageGenerator::getPixels(const SkImageInfo& info, void* pixels, size_t rowBytes) {
+ SkASSERT(kIndex_8_SkColorType != info.colorType());
+ if (kIndex_8_SkColorType == info.colorType()) {
+ return false;
+ }
+ return this->getPixels(info, pixels, rowBytes, NULL, NULL);
+}
+#endif
+
+/////////////////////////////////////////////////////////////////////////////////////////////
+
+SkData* SkImageGenerator::onRefEncodedData() {
+ return NULL;
+}
+
+bool SkImageGenerator::onGetInfo(SkImageInfo*) {
+ return false;
+}
+
+bool SkImageGenerator::onGetPixels(const SkImageInfo&, void*, size_t, SkPMColor*, int*) {
+ return false;
+}
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