| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "include/core/SkColor.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkTypes.h" |
| #include "src/core/SkBlitter.h" |
| #include "src/core/SkMask.h" |
| #include "tests/Test.h" |
| |
| #include <cstdint> |
| #include <string> |
| |
| class TestBlitter : public SkBlitter { |
| public: |
| TestBlitter(SkIRect bounds, skiatest::Reporter* reporter) |
| : fBounds(bounds) |
| , fReporter(reporter) { } |
| |
| void blitH(int x, int y, int width) override { |
| |
| REPORTER_ASSERT(fReporter, x >= fBounds.fLeft && x < fBounds.fRight); |
| REPORTER_ASSERT(fReporter, y >= fBounds.fTop && y < fBounds.fBottom); |
| int right = x + width; |
| REPORTER_ASSERT(fReporter, right > fBounds.fLeft && right <= fBounds.fRight); |
| } |
| |
| void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]) override { |
| SkDEBUGFAIL("blitAntiH not implemented"); |
| } |
| |
| private: |
| SkIRect fBounds; |
| skiatest::Reporter* fReporter; |
| }; |
| |
| // Exercise all clips compared with different widths of bitMask. Make sure that no buffer |
| // overruns happen. |
| DEF_TEST(BlitAndClip, reporter) { |
| const int originX = 100; |
| const int originY = 100; |
| for (int width = 1; width <= 32; width++) { |
| const int height = 2; |
| int rowBytes = (width + 7) >> 3; |
| uint8_t* bits = new uint8_t[rowBytes * height]; |
| memset(bits, 0xAA, rowBytes * height); |
| |
| SkIRect b = {originX, originY, originX + width, originY + height}; |
| |
| SkMask mask; |
| mask.fFormat = SkMask::kBW_Format; |
| mask.fBounds = b; |
| mask.fImage = (uint8_t*)bits; |
| mask.fRowBytes = rowBytes; |
| |
| TestBlitter tb(mask.fBounds, reporter); |
| |
| for (int top = b.fTop; top < b.fBottom; top++) { |
| for (int bottom = top + 1; bottom <= b.fBottom; bottom++) { |
| for (int left = b.fLeft; left < b.fRight; left++) { |
| for (int right = left + 1; right <= b.fRight; right++) { |
| SkIRect clipRect = {left, top, right, bottom}; |
| tb.blitMask(mask, clipRect); |
| } |
| } |
| } |
| } |
| |
| delete [] bits; |
| } |
| } |