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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Test.h"
#include "SkColor.h"
#include "SkColorFilter.h"
#include "SkRandom.h"
#include "SkXfermode.h"
static SkFlattenable* reincarnate_flattenable(SkFlattenable* obj) {
SkFlattenableWriteBuffer wb(1024);
wb.writeFlattenable(obj);
size_t size = wb.size();
SkAutoSMalloc<1024> storage(size);
// make a copy into storage
wb.flatten(storage.get());
SkFlattenableReadBuffer rb(storage.get(), size);
return rb.readFlattenable();
}
template <typename T> T* reincarnate(T* obj) {
return (T*)reincarnate_flattenable(obj);
}
///////////////////////////////////////////////////////////////////////////////
#define ILLEGAL_MODE ((SkXfermode::Mode)-1)
static void test_asColorMode(skiatest::Reporter* reporter) {
SkRandom rand;
for (int mode = 0; mode <= SkXfermode::kLastMode; mode++) {
SkColor color = rand.nextU();
// ensure we always get a filter, by avoiding the possibility of a
// special case that would return NULL (if color's alpha is 0 or 0xFF)
color = SkColorSetA(color, 0x7F);
SkColorFilter* cf = SkColorFilter::CreateModeFilter(color,
(SkXfermode::Mode)mode);
// allow for no filter if we're in Dst mode (its a no op)
if (SkXfermode::kDst_Mode == mode && NULL == cf) {
continue;
}
SkAutoUnref aur(cf);
REPORTER_ASSERT(reporter, cf);
SkColor c = ~color;
SkXfermode::Mode m = ILLEGAL_MODE;
SkColor expectedColor = color;
SkXfermode::Mode expectedMode = (SkXfermode::Mode)mode;
// SkDebugf("--- mc [%d %x] ", mode, color);
REPORTER_ASSERT(reporter, cf->asColorMode(&c, &m));
// handle special-case folding by the factory
if (SkXfermode::kClear_Mode == mode) {
if (c != expectedColor) {
expectedColor = 0;
}
if (m != expectedMode) {
expectedMode = SkXfermode::kSrc_Mode;
}
}
// SkDebugf("--- got [%d %x] expected [%d %x]\n", m, c, expectedMode, expectedColor);
REPORTER_ASSERT(reporter, c == expectedColor);
REPORTER_ASSERT(reporter, m == expectedMode);
{
SkColorFilter* cf2 = reincarnate(cf);
SkAutoUnref aur2(cf2);
REPORTER_ASSERT(reporter, cf2);
SkColor c2 = ~color;
SkXfermode::Mode m2 = ILLEGAL_MODE;
REPORTER_ASSERT(reporter, cf2->asColorMode(&c2, &m2));
REPORTER_ASSERT(reporter, c2 == expectedColor);
REPORTER_ASSERT(reporter, m2 == expectedMode);
}
}
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("ColorFilter", ColorFilterTestClass, test_asColorMode)
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