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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 "SkBitmap.h"
#include "SkRect.h"
#include "SkRandom.h"
static int nextRand(SkRandom& rand, int min, int max) {
return min + (int)rand.nextRangeU(0, max - min);
}
static void rand_irect(SkIRect* rect, int W, int H, SkRandom& rand) {
const int DX = W / 2;
const int DY = H / 2;
rect->fLeft = nextRand(rand, -DX, W + DX);
rect->fTop = nextRand(rand, -DY, H + DY);
rect->fRight = nextRand(rand, -DX, W + DX);
rect->fBottom = nextRand(rand, -DY, H + DY);
rect->sort();
}
static void test_equal_A1_A8(skiatest::Reporter* reporter,
const SkBitmap& bm1, const SkBitmap& bm8) {
SkASSERT(SkBitmap::kA1_Config == bm1.config());
SkASSERT(SkBitmap::kA8_Config == bm8.config());
REPORTER_ASSERT(reporter, bm1.width() == bm8.width());
REPORTER_ASSERT(reporter, bm1.height() == bm8.height());
for (int y = 0; y < bm1.height(); ++y) {
for (int x = 0; x < bm1.width(); ++x) {
int p1 = *bm1.getAddr1(x, y) & (1 << (7 - (x & 7)));
SkASSERT(SkIsPow2(p1));
p1 = p1 ? 0xFF : 0;
int p8 = *bm8.getAddr8(x, y);
SkASSERT(0 == p8 || 0xFF == p8);
REPORTER_ASSERT(reporter, p1 == p8);
}
}
}
static void test_eraserect_A1(skiatest::Reporter* reporter) {
const int W = 43;
const int H = 13;
SkBitmap bm1, bm8;
bm1.setConfig(SkBitmap::kA1_Config, W, H);
bm1.allocPixels();
bm8.setConfig(SkBitmap::kA8_Config, W, H);
bm8.allocPixels();
SkRandom rand;
for (int i = 0; i < 10000; ++i) {
SkIRect area;
rand_irect(&area, W, H, rand);
bm1.eraseColor(0);
bm8.eraseColor(0);
bm1.eraseArea(area, SK_ColorWHITE);
bm8.eraseArea(area, SK_ColorWHITE);
test_equal_A1_A8(reporter, bm1, bm8);
}
}
static void TestGetColor(skiatest::Reporter* reporter) {
static const struct Rec {
SkBitmap::Config fConfig;
SkColor fInColor;
SkColor fOutColor;
} gRec[] = {
// todo: add some tests that involve alpha, so we exercise the
// unpremultiply aspect of getColor()
{ SkBitmap::kA8_Config, 0xFF000000, 0xFF000000 },
{ SkBitmap::kA8_Config, 0, 0 },
{ SkBitmap::kRGB_565_Config, 0xFF00FF00, 0xFF00FF00 },
{ SkBitmap::kRGB_565_Config, 0xFFFF00FF, 0xFFFF00FF },
{ SkBitmap::kARGB_8888_Config, 0xFFFFFFFF, 0xFFFFFFFF },
{ SkBitmap::kARGB_8888_Config, 0, 0 },
{ SkBitmap::kARGB_8888_Config, 0xFF224466, 0xFF224466 },
};
// specify an area that doesn't touch (0,0) and may extend beyond the
// bitmap bounds (to test that we catch that in eraseArea
const SkColor initColor = 0xFF0000FF;
const SkIRect area = { 1, 1, 3, 3 };
for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); i++) {
SkBitmap bm;
uint32_t storage[4];
bm.setConfig(gRec[i].fConfig, 2, 2);
bm.setPixels(storage);
bm.eraseColor(initColor);
bm.eraseArea(area, gRec[i].fInColor);
SkColor c = bm.getColor(1, 1);
REPORTER_ASSERT(reporter, c == gRec[i].fOutColor);
}
test_eraserect_A1(reporter);
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("GetColor", TestGetColorClass, TestGetColor)
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