From 4226396806f99fea03fcc4f95f6367402bd5fa3d Mon Sep 17 00:00:00 2001
From: "reed@android.com"
 <reed@android.com@2bbb7eff-a529-9590-31e7-b0007b416f81>
Date: Fri, 1 May 2009 04:00:01 +0000
Subject: [PATCH] add BitmapCopyTest. Still need to consider the src==no_config
 case

git-svn-id: http://skia.googlecode.com/svn/trunk@163 2bbb7eff-a529-9590-31e7-b0007b416f81
---
 Makefile                 |  2 +-
 tests/BitmapCopyTest.cpp | 95 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 96 insertions(+), 1 deletion(-)
 create mode 100644 tests/BitmapCopyTest.cpp

diff --git a/Makefile b/Makefile
index e931aab581..42e54b5f58 100644
--- a/Makefile
+++ b/Makefile
@@ -109,7 +109,7 @@ C_INCLUDES += -Isrc/core
 TESTS_SRCS := GeometryTest.cpp MathTest.cpp MatrixTest.cpp PackBitsTest.cpp \
               Sk64Test.cpp StringTest.cpp Test.cpp UtilsTest.cpp PathTest.cpp \
               ClipCubicTest.cpp SrcOverTest.cpp StreamTest.cpp SortTest.cpp \
-			        PathMeasureTest.cpp TriangulationTest.cpp \
+			  BitmapCopyTest.cpp PathMeasureTest.cpp TriangulationTest.cpp \
               testmain.cpp
 
 TESTS_SRCS := $(addprefix tests/, $(TESTS_SRCS))
diff --git a/tests/BitmapCopyTest.cpp b/tests/BitmapCopyTest.cpp
new file mode 100644
index 0000000000..5ec64cfc03
--- /dev/null
+++ b/tests/BitmapCopyTest.cpp
@@ -0,0 +1,95 @@
+#include "Test.h"
+#include "SkBitmap.h"
+
+static const char* boolStr(bool value) {
+    return value ? "true" : "false";
+}
+
+// these are in the same order as the SkBitmap::Config enum
+static const char* gConfigName[] = {
+    "None", "A1", "A8", "Index8", "565", "4444", "8888", "RLE_Index8"
+};
+
+static void init_src(const SkBitmap& bitmap) {
+    SkAutoLockPixels lock(bitmap);    
+    if (bitmap.getPixels()) {
+        memset(bitmap.getPixels(), 4, bitmap.getSize());
+    }
+}
+
+SkColorTable* init_ctable() {
+    static const SkColor colors[] = {
+        SK_ColorBLACK, SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE
+    };
+    return new SkColorTable(colors, SK_ARRAY_COUNT(colors));
+}
+
+struct Pair {
+    SkBitmap::Config    fConfig;
+    const char*         fValid;
+};
+
+static void TestBitmapCopy(skiatest::Reporter* reporter) {
+    static const Pair gPairs[] = {
+        { SkBitmap::kNo_Config,         "00000000"  },
+        { SkBitmap::kA1_Config,         "01101110"  },
+        { SkBitmap::kA8_Config,         "00101110"  },
+        { SkBitmap::kIndex8_Config,     "00111110"  },
+        { SkBitmap::kRGB_565_Config,    "00101110"  },
+        { SkBitmap::kARGB_4444_Config,  "00101110"  },
+        { SkBitmap::kARGB_8888_Config,  "00101110"  },
+        { SkBitmap::kRLE_Index8_Config, "00000000"  }
+    };
+    
+    const int W = 20;
+    const int H = 33;
+    
+    for (size_t i = 0; i < SK_ARRAY_COUNT(gPairs); i++) {
+        for (size_t j = 0; j < SK_ARRAY_COUNT(gPairs); j++) {
+            SkBitmap src, dst;
+            SkColorTable* ct = NULL;
+            
+            src.setConfig(gPairs[i].fConfig, W, H);
+            if (SkBitmap::kIndex8_Config == src.config()) {
+                ct = init_ctable();
+            }
+            src.allocPixels(ct);
+            ct->safeRef();
+
+            init_src(src);
+            bool success = src.copyTo(&dst, gPairs[j].fConfig);
+            bool expected = gPairs[i].fValid[j] != '0';
+            if (success != expected) {
+                SkString str;
+                str.printf("SkBitmap::copyTo from %s to %s. expected %s returned %s",
+                           gConfigName[i], gConfigName[j], boolStr(expected),
+                           boolStr(success));
+                reporter->reportFailed(str);
+            }
+            
+            if (success) {
+                REPORTER_ASSERT(reporter, src.width() == dst.width());
+                REPORTER_ASSERT(reporter, src.height() == dst.height());
+                if (src.config() == dst.config()) {
+                    SkAutoLockPixels srcLock(src);    
+                    SkAutoLockPixels dstLock(dst);
+                    REPORTER_ASSERT(reporter, src.readyToDraw());
+                    REPORTER_ASSERT(reporter, dst.readyToDraw());
+                    const char* srcP = (const char*)src.getAddr(0, 0);
+                    const char* dstP = (const char*)dst.getAddr(0, 0);
+                    REPORTER_ASSERT(reporter, srcP != dstP);
+                    REPORTER_ASSERT(reporter, !memcmp(srcP, dstP,
+                                                      src.getSize()));
+                }
+            } else {
+                // dst should be unchanged from its initial state
+                REPORTER_ASSERT(reporter, dst.config() == SkBitmap::kNo_Config);
+                REPORTER_ASSERT(reporter, dst.width() == 0);
+                REPORTER_ASSERT(reporter, dst.height() == 0);
+            }
+        }
+    }
+}
+
+#include "TestClassDef.h"
+DEFINE_TESTCLASS("BitmapCopy", TestBitmapCopyClass, TestBitmapCopy)