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Diffstat (limited to 'tests/DrawOpAtlasTest.cpp')
-rw-r--r-- | tests/DrawOpAtlasTest.cpp | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/tests/DrawOpAtlasTest.cpp b/tests/DrawOpAtlasTest.cpp new file mode 100644 index 0000000000..a34618e38f --- /dev/null +++ b/tests/DrawOpAtlasTest.cpp @@ -0,0 +1,132 @@ +/* + * Copyright 2018 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "SkTypes.h" + +#if SK_SUPPORT_GPU + +#include "GrContextPriv.h" +#include "Test.h" +#include "text/GrAtlasGlyphCache.h" + +static const int kNumPlots = 2; +static const int kPlotSize = 32; +static const int kAtlasSize = kNumPlots * kPlotSize; + +int GrDrawOpAtlas::numAllocated_TestingOnly() const { + int count = 0; + for (uint32_t i = 0; i < this->maxPages(); ++i) { + if (fProxies[i]->priv().isInstantiated()) { + ++count; + } + } + + return count; +} + +void EvictionFunc(GrDrawOpAtlas::AtlasID atlasID, void*) { + SkASSERT(0); // The unit test shouldn't exercise this code path +} + +static void check(skiatest::Reporter* r, GrDrawOpAtlas* atlas, + uint32_t expectedActive, uint32_t expectedMax, int expectedAlloced) { + REPORTER_ASSERT(r, expectedActive == atlas->numActivePages()); + REPORTER_ASSERT(r, expectedMax == atlas->maxPages()); + REPORTER_ASSERT(r, expectedAlloced == atlas->numAllocated_TestingOnly()); +} + +class TestingUploadTarget : public GrDeferredUploadTarget { +public: + TestingUploadTarget() { } + + const GrTokenTracker* tokenTracker() final { + return &fTokenTracker; + } + + GrDeferredUploadToken addInlineUpload(GrDeferredTextureUploadFn&&) final { + SkASSERT(0); // this test shouldn't invoke this code path + return fTokenTracker.nextDrawToken(); + } + + virtual GrDeferredUploadToken addASAPUpload(GrDeferredTextureUploadFn&& upload) final { + return fTokenTracker.nextTokenToFlush(); + } + + void issueDrawToken() { fTokenTracker.issueDrawToken(); } + void flushToken() { fTokenTracker.flushToken(); } + +private: + GrTokenTracker fTokenTracker; + + typedef GrDeferredUploadTarget INHERITED; +}; + +static bool fill_plot(GrDrawOpAtlas* atlas, + GrResourceProvider* resourceProvider, + GrDeferredUploadTarget* target, + GrDrawOpAtlas::AtlasID* atlasID, + int alpha) { + SkImageInfo ii = SkImageInfo::MakeA8(kPlotSize, kPlotSize); + + SkBitmap data; + data.allocPixels(ii); + data.eraseARGB(alpha, 0, 0, 0); + + SkIPoint16 loc; + bool result = atlas->addToAtlas(resourceProvider, atlasID, target, kPlotSize, kPlotSize, + data.getAddr(0, 0), &loc); + return result; +} + + +DEF_GPUTEST_FOR_RENDERING_CONTEXTS(DrawOpAtlas, reporter, ctxInfo) { + auto context = ctxInfo.grContext(); + auto proxyProvider = context->contextPriv().proxyProvider(); + auto resourceProvider = context->contextPriv().resourceProvider(); + auto drawingManager = context->contextPriv().drawingManager(); + + GrOnFlushResourceProvider onFlushResourceProvider(drawingManager); + TestingUploadTarget uploadTarget; + + std::unique_ptr<GrDrawOpAtlas> atlas = GrDrawOpAtlas::Make( + proxyProvider, + kAlpha_8_GrPixelConfig, + kAtlasSize, kAtlasSize, + kNumPlots, kNumPlots, + GrDrawOpAtlas::AllowMultitexturing::kYes, + EvictionFunc, nullptr); + check(reporter, atlas.get(), 0, 4, 0); + + // Fill up the first level + GrDrawOpAtlas::AtlasID atlasIDs[kNumPlots * kNumPlots]; + for (int i = 0; i < kNumPlots * kNumPlots; ++i) { + bool result = fill_plot(atlas.get(), resourceProvider, &uploadTarget, &atlasIDs[i], i*32); + REPORTER_ASSERT(reporter, result); + check(reporter, atlas.get(), 1, 4, 1); + } + + atlas->instantiate(&onFlushResourceProvider); + check(reporter, atlas.get(), 1, 4, 1); + + // Force allocation of a second level + GrDrawOpAtlas::AtlasID atlasID; + bool result = fill_plot(atlas.get(), resourceProvider, &uploadTarget, &atlasID, 4*32); + REPORTER_ASSERT(reporter, result); + check(reporter, atlas.get(), 2, 4, 2); + + // Simulate a lot of draws using only the first plot. The last texture should be compacted. + for (int i = 0; i < 512; ++i) { + atlas->setLastUseToken(atlasIDs[0], uploadTarget.tokenTracker()->nextDrawToken()); + uploadTarget.issueDrawToken(); + uploadTarget.flushToken(); + atlas->compact(uploadTarget.tokenTracker()->nextTokenToFlush()); + } + + check(reporter, atlas.get(), 1, 4, 1); +} + +#endif |