Add unit test for clear bug
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>
diff --git a/tests/ClearTest.cpp b/tests/ClearTest.cpp
index bcd0899..034ff95 100644
--- a/tests/ClearTest.cpp
+++ b/tests/ClearTest.cpp
@@ -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 @@
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