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- /*
- * 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 <string.h>
- 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;
- }
- }
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