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#include "Test.h"
#include "SkBitmap.h"
#include "SkRect.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 report_opaqueness(skiatest::Reporter* reporter, const SkBitmap& src,
const SkBitmap& dst) {
SkString str;
str.printf("src %s opaque:%d, dst %s opaque:%d",
gConfigName[src.config()], src.isOpaque(),
gConfigName[dst.config()], dst.isOpaque());
reporter->reportFailed(str);
}
static bool canHaveAlpha(SkBitmap::Config config) {
return config != SkBitmap::kRGB_565_Config;
}
// copyTo() should preserve isOpaque when it makes sense
static void test_isOpaque(skiatest::Reporter* reporter, const SkBitmap& src,
SkBitmap::Config dstConfig) {
SkBitmap bitmap(src);
SkBitmap dst;
// we need the lock so that we get a valid colorTable (when available)
SkAutoLockPixels alp(bitmap);
SkColorTable* ctable = bitmap.getColorTable();
unsigned ctableFlags = ctable ? ctable->getFlags() : 0;
if (canHaveAlpha(bitmap.config()) && canHaveAlpha(dstConfig)) {
bitmap.setIsOpaque(false);
if (ctable) {
ctable->setFlags(ctableFlags & ~SkColorTable::kColorsAreOpaque_Flag);
}
REPORTER_ASSERT(reporter, bitmap.copyTo(&dst, dstConfig));
REPORTER_ASSERT(reporter, dst.config() == dstConfig);
if (bitmap.isOpaque() != dst.isOpaque()) {
report_opaqueness(reporter, bitmap, dst);
}
}
bitmap.setIsOpaque(true);
if (ctable) {
ctable->setFlags(ctableFlags | SkColorTable::kColorsAreOpaque_Flag);
}
REPORTER_ASSERT(reporter, bitmap.copyTo(&dst, dstConfig));
REPORTER_ASSERT(reporter, dst.config() == dstConfig);
if (bitmap.isOpaque() != dst.isOpaque()) {
report_opaqueness(reporter, bitmap, dst);
}
if (ctable) {
ctable->setFlags(ctableFlags);
}
}
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, "01000000" },
{ SkBitmap::kA8_Config, "00101110" },
{ SkBitmap::kIndex8_Config, "00111110" },
{ SkBitmap::kRGB_565_Config, "00101110" },
{ SkBitmap::kARGB_4444_Config, "00101110" },
{ SkBitmap::kARGB_8888_Config, "00101110" },
// TODO: create valid RLE bitmap to test with
// { SkBitmap::kRLE_Index8_Config, "00101111" }
};
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() ||
SkBitmap::kRLE_Index8_Config == src.config()) {
ct = init_ctable();
}
src.allocPixels(ct);
SkSafeUnref(ct);
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);
}
bool canSucceed = src.canCopyTo(gPairs[j].fConfig);
if (success != canSucceed) {
SkString str;
str.printf("SkBitmap::copyTo from %s to %s. returned %s canCopyTo %s",
gConfigName[i], gConfigName[j], boolStr(success),
boolStr(canSucceed));
reporter->reportFailed(str);
}
if (success) {
REPORTER_ASSERT(reporter, src.width() == dst.width());
REPORTER_ASSERT(reporter, src.height() == dst.height());
REPORTER_ASSERT(reporter, dst.config() == gPairs[j].fConfig);
test_isOpaque(reporter, src, dst.config());
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()));
}
// test extractSubset
{
SkBitmap subset;
SkIRect r;
r.set(1, 1, 2, 2);
if (src.extractSubset(&subset, r)) {
REPORTER_ASSERT(reporter, subset.width() == 1);
REPORTER_ASSERT(reporter, subset.height() == 1);
SkBitmap copy;
REPORTER_ASSERT(reporter,
subset.copyTo(©, subset.config()));
REPORTER_ASSERT(reporter, copy.width() == 1);
REPORTER_ASSERT(reporter, copy.height() == 1);
REPORTER_ASSERT(reporter, copy.rowBytes() <= 4);
SkAutoLockPixels alp0(subset);
SkAutoLockPixels alp1(copy);
// they should both have, or both not-have, a colortable
bool hasCT = subset.getColorTable() != NULL;
REPORTER_ASSERT(reporter,
(copy.getColorTable() != NULL) == hasCT);
}
}
} 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)
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