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Rewrite GrTextureMipMapInvalidationTest using SkImage

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BUG=skia:5531
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2149133002

Review-Url: https://codereview.chromium.org/2149133002
This commit is contained in:
bsalomon 2016-07-14 09:24:08 -07:00 committed by Commit bot
parent cfc79fe9a3
commit b1792f1121
1 changed files with 30 additions and 35 deletions
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65
tests/GrTextureMipMapInvalidationTest.cpp
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@ -1,5 +1,5 @@
/*
* Copyright 2013 Google Inc.
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
@ -13,52 +13,47 @@
#include "GrTexture.h"
#include "GrTexturePriv.h"
#include "SkCanvas.h"
#include "SkGrPriv.h"
#include "SkImage_Base.h"
#include "SkSurface.h"
#include "Test.h"
// Tests that GrSurface::asTexture(), GrSurface::asRenderTarget(), and static upcasting of texture
// and render targets to GrSurface all work as expected.
// Tests that MIP maps are created and invalidated as expected when drawing to and from GrTextures.
DEF_GPUTEST_FOR_NULLGL_CONTEXT(GrTextureMipMapInvalidationTest, reporter, ctxInfo) {
auto isMipped = [] (SkSurface* surf) {
return as_IB(surf->makeImageSnapshot(SkBudgeted::kYes))->
peekTexture()->texturePriv().hasMipMaps();
};
auto mipsAreDirty = [] (SkSurface* surf) {
return as_IB(surf->makeImageSnapshot(SkBudgeted::kYes))->
peekTexture()->texturePriv().mipMapsAreDirty();
};
GrContext* context = ctxInfo.grContext();
GrSurfaceDesc desc;
desc.fConfig = kSkia8888_GrPixelConfig;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = 256;
desc.fHeight = 256;
desc.fSampleCnt = 0;
GrSurface* texRT1 = context->textureProvider()->createTexture(
desc, SkBudgeted::kNo, nullptr, 0);
GrSurface* texRT2 = context->textureProvider()->createTexture(
desc, SkBudgeted::kNo, nullptr, 0);
REPORTER_ASSERT(reporter, nullptr != texRT1);
REPORTER_ASSERT(reporter, nullptr != texRT2);
GrTexture* tex = texRT1->asTexture();
REPORTER_ASSERT(reporter, nullptr != tex);
SkBitmap bitmap;
GrWrapTextureInBitmap(tex, 256, 256, false, &bitmap);
auto info = SkImageInfo::MakeN32Premul(256, 256);
auto surf1 = SkSurface::MakeRenderTarget(context, SkBudgeted::kYes, info);
auto surf2 = SkSurface::MakeRenderTarget(context, SkBudgeted::kYes, info);
// Draw something just in case we ever had a solid color optimization
surf1->getCanvas()->drawCircle(128, 128, 50, SkPaint());
surf1->getCanvas()->flush();
// No mipmaps initially
REPORTER_ASSERT(reporter, false == tex->texturePriv().hasMipMaps());
REPORTER_ASSERT(reporter, !isMipped(surf1.get()));
// Painting with downscale and medium filter quality should result in mipmap creation
auto surface = SkSurface::MakeRenderTargetDirect(texRT2->asRenderTarget());
SkPaint paint;
paint.setFilterQuality(kMedium_SkFilterQuality);
surface->getCanvas()->scale(0.2f, 0.2f);
surface->getCanvas()->drawBitmap(bitmap, 0, 0, &paint);
context->flush();
surf2->getCanvas()->scale(0.2f, 0.2f);
surf2->getCanvas()->drawImage(surf1->makeImageSnapshot(SkBudgeted::kYes), 0, 0, &paint);
surf2->getCanvas()->flush();
REPORTER_ASSERT(reporter, isMipped(surf1.get()));
REPORTER_ASSERT(reporter, !mipsAreDirty(surf1.get()));
REPORTER_ASSERT(reporter, true == tex->texturePriv().hasMipMaps());
REPORTER_ASSERT(reporter, false == tex->texturePriv().mipMapsAreDirty());
// Invalidating the contents of the bitmap should invalidate the mipmap, but not de-allocate
bitmap.notifyPixelsChanged();
REPORTER_ASSERT(reporter, true == tex->texturePriv().hasMipMaps());
REPORTER_ASSERT(reporter, true == tex->texturePriv().mipMapsAreDirty());
texRT1->unref();
texRT2->unref();
// Changing the contents of the surface should invalidate the mipmap, but not de-allocate
surf1->getCanvas()->drawCircle(128, 128, 100, SkPaint());
surf1->getCanvas()->flush();
REPORTER_ASSERT(reporter, isMipped(surf1.get()));
REPORTER_ASSERT(reporter, mipsAreDirty(surf1.get()));
}
#endif