f95b175246
Change-Id: Ic2bfd83b6e6bcc5ea1591427683085637eb5a6cc Reviewed-on: https://skia-review.googlesource.com/41360 Reviewed-by: Greg Daniel <egdaniel@google.com> Commit-Queue: Robert Phillips <robertphillips@google.com>
57 lines
2.0 KiB
C++
57 lines
2.0 KiB
C++
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkTypes.h"
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#if SK_SUPPORT_GPU
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#include "GrContext.h"
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#include "GrTexturePriv.h"
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#include "SkCanvas.h"
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#include "SkImage_Base.h"
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#include "SkSurface.h"
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#include "Test.h"
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// Tests that MIP maps are created and invalidated as expected when drawing to and from GrTextures.
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DEF_GPUTEST_FOR_NULLGL_CONTEXT(GrTextureMipMapInvalidationTest, reporter, ctxInfo) {
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auto isMipped = [] (SkSurface* surf) {
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return surf->makeImageSnapshot()->getTexture()->texturePriv().hasMipMaps();
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};
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auto mipsAreDirty = [] (SkSurface* surf) {
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return surf->makeImageSnapshot()->getTexture()->texturePriv().mipMapsAreDirty();
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};
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GrContext* context = ctxInfo.grContext();
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auto info = SkImageInfo::MakeN32Premul(256, 256);
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auto surf1 = SkSurface::MakeRenderTarget(context, SkBudgeted::kYes, info);
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auto surf2 = SkSurface::MakeRenderTarget(context, SkBudgeted::kYes, info);
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// Draw something just in case we ever had a solid color optimization
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surf1->getCanvas()->drawCircle(128, 128, 50, SkPaint());
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surf1->getCanvas()->flush();
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// No mipmaps initially
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REPORTER_ASSERT(reporter, !isMipped(surf1.get()));
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// Painting with downscale and medium filter quality should result in mipmap creation
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SkPaint paint;
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paint.setFilterQuality(kMedium_SkFilterQuality);
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surf2->getCanvas()->scale(0.2f, 0.2f);
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surf2->getCanvas()->drawImage(surf1->makeImageSnapshot(), 0, 0, &paint);
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surf2->getCanvas()->flush();
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REPORTER_ASSERT(reporter, isMipped(surf1.get()));
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REPORTER_ASSERT(reporter, !mipsAreDirty(surf1.get()));
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// Changing the contents of the surface should invalidate the mipmap, but not de-allocate
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surf1->getCanvas()->drawCircle(128, 128, 100, SkPaint());
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surf1->getCanvas()->flush();
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REPORTER_ASSERT(reporter, isMipped(surf1.get()));
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REPORTER_ASSERT(reporter, mipsAreDirty(surf1.get()));
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}
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#endif
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