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Add unit test for clear bug

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Bug: 768134
Change-Id: Ifb5a0eaeb85a8f399204467c22d0845d630d0d3d
Reviewed-on: https://skia-review.googlesource.com/60562
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
This commit is contained in:
Robert Phillips 2017-10-17 12:15:32 -04:00 committed by Skia Commit-Bot
parent 152f51d535
commit 2fb81c04d7
1 changed files with 62 additions and 0 deletions
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62
tests/ClearTest.cpp
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@ -11,6 +11,9 @@
#include "GrContext.h"
#include "GrRenderTargetContext.h"
#include "SkCanvas.h"
#include "SkSurface.h"
static bool check_rect(GrRenderTargetContext* rtc, const SkIRect& rect, uint32_t expectedValue,
uint32_t* actualValue, int* failX, int* failY) {
int w = rect.width();
@ -202,4 +205,63 @@ DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ClearOp, reporter, ctxInfo) {
failX, failY);
}
}
// From crbug.com/768134
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(FullScreenClearWithLayers, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
const SkImageInfo ii = SkImageInfo::Make(400, 77, kRGBA_8888_SkColorType, kPremul_SkAlphaType);
sk_sp<SkSurface> surf = SkSurface::MakeRenderTarget(context, SkBudgeted::kYes, ii);
SkCanvas* canvas = surf->getCanvas();
SkPaint paints[2];
paints[0].setColor(SK_ColorGREEN);
paints[1].setColor(SK_ColorGRAY);
static const int kLeftX = 158;
static const int kMidX = 258;
static const int kRightX = 383;
static const int kTopY = 26;
static const int kBotY = 51;
const SkRect rects[2] = {
{ kLeftX, kTopY, kMidX, kBotY },
{ kMidX, kTopY, kRightX, kBotY },
};
for (int i = 0; i < 2; ++i) {
// the bounds parameter is required to cause a full screen clear
canvas->saveLayer(&rects[i], nullptr);
canvas->drawRect(rects[i], paints[i]);
canvas->restore();
}
SkBitmap bm;
bm.allocPixels(ii, 0);
SkAssertResult(surf->readPixels(bm, 0, 0));
bool isCorrect = true;
for (int y = kTopY; isCorrect && y < kBotY; ++y) {
const uint32_t* sl = bm.getAddr32(0, y);
for (int x = kLeftX; x < kMidX; ++x) {
if (SK_ColorGREEN != sl[x]) {
isCorrect = false;
break;
}
}
for (int x = kMidX; x < kRightX; ++x) {
if (SK_ColorGRAY != sl[x]) {
isCorrect = false;
break;
}
}
}
REPORTER_ASSERT(reporter, isCorrect);
}
#endif