311c82db31
trying to access its colorTable. Update unittest for copyTo. Add sample for using a mask to clip a layer. git-svn-id: http://skia.googlecode.com/svn/trunk@168 2bbb7eff-a529-9590-31e7-b0007b416f81
122 lines
4.7 KiB
C++
122 lines
4.7 KiB
C++
#include "Test.h"
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#include "SkBitmap.h"
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#include "SkRect.h"
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static const char* boolStr(bool value) {
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return value ? "true" : "false";
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}
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// these are in the same order as the SkBitmap::Config enum
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static const char* gConfigName[] = {
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"None", "A1", "A8", "Index8", "565", "4444", "8888", "RLE_Index8"
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};
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static void init_src(const SkBitmap& bitmap) {
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SkAutoLockPixels lock(bitmap);
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if (bitmap.getPixels()) {
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memset(bitmap.getPixels(), 4, bitmap.getSize());
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}
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}
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SkColorTable* init_ctable() {
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static const SkColor colors[] = {
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SK_ColorBLACK, SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE
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};
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return new SkColorTable(colors, SK_ARRAY_COUNT(colors));
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}
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struct Pair {
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SkBitmap::Config fConfig;
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const char* fValid;
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};
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static void TestBitmapCopy(skiatest::Reporter* reporter) {
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static const Pair gPairs[] = {
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{ SkBitmap::kNo_Config, "00000000" },
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{ SkBitmap::kA1_Config, "01000000" },
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{ SkBitmap::kA8_Config, "00101110" },
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{ SkBitmap::kIndex8_Config, "00111110" },
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{ SkBitmap::kRGB_565_Config, "00101110" },
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{ SkBitmap::kARGB_4444_Config, "00101110" },
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{ SkBitmap::kARGB_8888_Config, "00101110" },
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{ SkBitmap::kRLE_Index8_Config, "00000000" }
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};
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const int W = 20;
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const int H = 33;
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for (size_t i = 0; i < SK_ARRAY_COUNT(gPairs); i++) {
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for (size_t j = 0; j < SK_ARRAY_COUNT(gPairs); j++) {
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SkBitmap src, dst;
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SkColorTable* ct = NULL;
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src.setConfig(gPairs[i].fConfig, W, H);
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if (SkBitmap::kIndex8_Config == src.config()) {
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ct = init_ctable();
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}
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src.allocPixels(ct);
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ct->safeRef();
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init_src(src);
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bool success = src.copyTo(&dst, gPairs[j].fConfig);
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bool expected = gPairs[i].fValid[j] != '0';
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if (success != expected) {
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SkString str;
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str.printf("SkBitmap::copyTo from %s to %s. expected %s returned %s",
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gConfigName[i], gConfigName[j], boolStr(expected),
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boolStr(success));
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reporter->reportFailed(str);
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}
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if (success) {
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REPORTER_ASSERT(reporter, src.width() == dst.width());
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REPORTER_ASSERT(reporter, src.height() == dst.height());
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REPORTER_ASSERT(reporter, dst.config() == gPairs[j].fConfig);
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if (src.config() == dst.config()) {
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SkAutoLockPixels srcLock(src);
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SkAutoLockPixels dstLock(dst);
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REPORTER_ASSERT(reporter, src.readyToDraw());
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REPORTER_ASSERT(reporter, dst.readyToDraw());
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const char* srcP = (const char*)src.getAddr(0, 0);
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const char* dstP = (const char*)dst.getAddr(0, 0);
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REPORTER_ASSERT(reporter, srcP != dstP);
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REPORTER_ASSERT(reporter, !memcmp(srcP, dstP,
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src.getSize()));
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}
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// test extractSubset
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{
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SkBitmap subset;
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SkIRect r;
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r.set(1, 1, 2, 2);
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if (src.extractSubset(&subset, r)) {
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REPORTER_ASSERT(reporter, subset.width() == 1);
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REPORTER_ASSERT(reporter, subset.height() == 1);
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SkBitmap copy;
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REPORTER_ASSERT(reporter,
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subset.copyTo(©, subset.config()));
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REPORTER_ASSERT(reporter, copy.width() == 1);
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REPORTER_ASSERT(reporter, copy.height() == 1);
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REPORTER_ASSERT(reporter, copy.rowBytes() <= 4);
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SkAutoLockPixels alp0(subset);
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SkAutoLockPixels alp1(copy);
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// they should both have, or both not-have, a colortable
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bool hasCT = subset.getColorTable() != NULL;
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REPORTER_ASSERT(reporter,
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(copy.getColorTable() != NULL) == hasCT);
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}
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}
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} else {
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// dst should be unchanged from its initial state
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REPORTER_ASSERT(reporter, dst.config() == SkBitmap::kNo_Config);
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REPORTER_ASSERT(reporter, dst.width() == 0);
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REPORTER_ASSERT(reporter, dst.height() == 0);
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}
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}
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}
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}
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#include "TestClassDef.h"
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DEFINE_TESTCLASS("BitmapCopy", TestBitmapCopyClass, TestBitmapCopy)
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