| /* |
| * 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) |