7eae5d74cd
The logic being tested is implemented in the various Gr*Gpu classes, so running it on the NullGL context seems like an oversight. Bug: skia: Change-Id: I629010f0abde9347f06602a6b8774df7a19a3da7 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/203704 Commit-Queue: Brian Osman <brianosman@google.com> Reviewed-by: Robert Phillips <robertphillips@google.com>
108 lines
4.5 KiB
C++
108 lines
4.5 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 "GrContext.h"
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#include "GrContextPriv.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_RENDERING_CONTEXTS(GrTextureMipMapInvalidationTest, reporter, ctxInfo) {
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GrContext* context = ctxInfo.grContext();
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if (!context->priv().caps()->mipMapSupport()) {
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return;
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}
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auto isMipped = [] (SkSurface* surf) {
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const GrTexture* texture = surf->makeImageSnapshot()->getTexture();
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return GrMipMapped::kYes == texture->texturePriv().mipMapped();
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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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auto info = SkImageInfo::MakeN32Premul(256, 256);
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for (auto allocateMips : {false, true}) {
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auto surf1 = SkSurface::MakeRenderTarget(context, SkBudgeted::kYes, info, 0,
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kBottomLeft_GrSurfaceOrigin, nullptr,
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allocateMips);
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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->flush();
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// No mipmaps initially
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REPORTER_ASSERT(reporter, isMipped(surf1.get()) == allocateMips);
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// Painting with downscale and medium filter quality should result in mipmap creation
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// Flush the context rather than the canvas as flushing the canvas triggers MIP level
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// generation.
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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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context->flush();
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REPORTER_ASSERT(reporter, isMipped(surf1.get()) == allocateMips);
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REPORTER_ASSERT(reporter, !allocateMips || !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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context->flush();
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REPORTER_ASSERT(reporter, isMipped(surf1.get()) == allocateMips);
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REPORTER_ASSERT(reporter, mipsAreDirty(surf1.get()));
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}
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}
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DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ReimportImageTextureWithMipLevels, reporter, ctxInfo) {
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auto* ctx = ctxInfo.grContext();
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if (!ctx->priv().caps()->mipMapSupport()) {
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return;
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}
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static constexpr auto kCreateWithMipMaps = true;
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auto surf = SkSurface::MakeRenderTarget(
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ctx, SkBudgeted::kYes,
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SkImageInfo::Make(100, 100, kRGBA_8888_SkColorType, kPremul_SkAlphaType), 1,
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kTopLeft_GrSurfaceOrigin, nullptr, kCreateWithMipMaps);
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if (!surf) {
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return;
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}
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surf->getCanvas()->drawColor(SK_ColorDKGRAY);
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auto img = surf->makeImageSnapshot();
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if (!img) {
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return;
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}
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surf.reset();
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GrBackendTexture btex;
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SkImage::BackendTextureReleaseProc texRelease;
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if (!SkImage::MakeBackendTextureFromSkImage(ctx, std::move(img), &btex, &texRelease)) {
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// Not all backends support stealing textures yet.
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// ERRORF(reporter, "Could not turn image into texture");
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return;
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}
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REPORTER_ASSERT(reporter, btex.hasMipMaps());
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// Reimport the texture as an image and perform a downsampling draw with medium quality which
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// should use the upper MIP levels.
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img = SkImage::MakeFromTexture(ctx, btex, kTopLeft_GrSurfaceOrigin, kRGBA_8888_SkColorType,
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kPremul_SkAlphaType, nullptr);
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const auto singlePixelInfo =
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SkImageInfo::Make(1, 1, kRGBA_8888_SkColorType, kPremul_SkAlphaType, nullptr);
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surf = SkSurface::MakeRenderTarget(ctx, SkBudgeted::kYes, singlePixelInfo, 1,
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kTopLeft_GrSurfaceOrigin, nullptr);
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SkPaint paint;
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paint.setFilterQuality(kMedium_SkFilterQuality);
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surf->getCanvas()->drawImageRect(img, SkRect::MakeWH(1, 1), &paint);
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uint32_t pixel;
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surf->readPixels(singlePixelInfo, &pixel, sizeof(uint32_t), 0, 0);
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REPORTER_ASSERT(reporter, pixel == SkPreMultiplyColor(SK_ColorDKGRAY));
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img.reset();
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texRelease(btex);
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}
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