Robert Phillips | 4bc7011 | 2018-03-01 10:24:02 -0500 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2018 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "SkTypes.h" |
| 9 | |
| 10 | #if SK_SUPPORT_GPU |
| 11 | |
| 12 | #include "GrContextPriv.h" |
| 13 | #include "Test.h" |
| 14 | #include "text/GrAtlasGlyphCache.h" |
| 15 | |
| 16 | static const int kNumPlots = 2; |
| 17 | static const int kPlotSize = 32; |
| 18 | static const int kAtlasSize = kNumPlots * kPlotSize; |
| 19 | |
| 20 | int GrDrawOpAtlas::numAllocated_TestingOnly() const { |
| 21 | int count = 0; |
| 22 | for (uint32_t i = 0; i < this->maxPages(); ++i) { |
| 23 | if (fProxies[i]->priv().isInstantiated()) { |
| 24 | ++count; |
| 25 | } |
| 26 | } |
| 27 | |
| 28 | return count; |
| 29 | } |
| 30 | |
| 31 | void EvictionFunc(GrDrawOpAtlas::AtlasID atlasID, void*) { |
| 32 | SkASSERT(0); // The unit test shouldn't exercise this code path |
| 33 | } |
| 34 | |
| 35 | static void check(skiatest::Reporter* r, GrDrawOpAtlas* atlas, |
| 36 | uint32_t expectedActive, uint32_t expectedMax, int expectedAlloced) { |
| 37 | REPORTER_ASSERT(r, expectedActive == atlas->numActivePages()); |
| 38 | REPORTER_ASSERT(r, expectedMax == atlas->maxPages()); |
| 39 | REPORTER_ASSERT(r, expectedAlloced == atlas->numAllocated_TestingOnly()); |
| 40 | } |
| 41 | |
| 42 | class TestingUploadTarget : public GrDeferredUploadTarget { |
| 43 | public: |
| 44 | TestingUploadTarget() { } |
| 45 | |
| 46 | const GrTokenTracker* tokenTracker() final { |
| 47 | return &fTokenTracker; |
| 48 | } |
| 49 | |
| 50 | GrDeferredUploadToken addInlineUpload(GrDeferredTextureUploadFn&&) final { |
| 51 | SkASSERT(0); // this test shouldn't invoke this code path |
| 52 | return fTokenTracker.nextDrawToken(); |
| 53 | } |
| 54 | |
| 55 | virtual GrDeferredUploadToken addASAPUpload(GrDeferredTextureUploadFn&& upload) final { |
| 56 | return fTokenTracker.nextTokenToFlush(); |
| 57 | } |
| 58 | |
| 59 | void issueDrawToken() { fTokenTracker.issueDrawToken(); } |
| 60 | void flushToken() { fTokenTracker.flushToken(); } |
| 61 | |
| 62 | private: |
| 63 | GrTokenTracker fTokenTracker; |
| 64 | |
| 65 | typedef GrDeferredUploadTarget INHERITED; |
| 66 | }; |
| 67 | |
| 68 | static bool fill_plot(GrDrawOpAtlas* atlas, |
| 69 | GrResourceProvider* resourceProvider, |
| 70 | GrDeferredUploadTarget* target, |
| 71 | GrDrawOpAtlas::AtlasID* atlasID, |
| 72 | int alpha) { |
| 73 | SkImageInfo ii = SkImageInfo::MakeA8(kPlotSize, kPlotSize); |
| 74 | |
| 75 | SkBitmap data; |
| 76 | data.allocPixels(ii); |
| 77 | data.eraseARGB(alpha, 0, 0, 0); |
| 78 | |
| 79 | SkIPoint16 loc; |
| 80 | bool result = atlas->addToAtlas(resourceProvider, atlasID, target, kPlotSize, kPlotSize, |
| 81 | data.getAddr(0, 0), &loc); |
| 82 | return result; |
| 83 | } |
| 84 | |
| 85 | |
| 86 | DEF_GPUTEST_FOR_RENDERING_CONTEXTS(DrawOpAtlas, reporter, ctxInfo) { |
| 87 | auto context = ctxInfo.grContext(); |
| 88 | auto proxyProvider = context->contextPriv().proxyProvider(); |
| 89 | auto resourceProvider = context->contextPriv().resourceProvider(); |
| 90 | auto drawingManager = context->contextPriv().drawingManager(); |
| 91 | |
| 92 | GrOnFlushResourceProvider onFlushResourceProvider(drawingManager); |
| 93 | TestingUploadTarget uploadTarget; |
| 94 | |
| 95 | std::unique_ptr<GrDrawOpAtlas> atlas = GrDrawOpAtlas::Make( |
| 96 | proxyProvider, |
| 97 | kAlpha_8_GrPixelConfig, |
| 98 | kAtlasSize, kAtlasSize, |
| 99 | kNumPlots, kNumPlots, |
| 100 | GrDrawOpAtlas::AllowMultitexturing::kYes, |
| 101 | EvictionFunc, nullptr); |
| 102 | check(reporter, atlas.get(), 0, 4, 0); |
| 103 | |
| 104 | // Fill up the first level |
| 105 | GrDrawOpAtlas::AtlasID atlasIDs[kNumPlots * kNumPlots]; |
| 106 | for (int i = 0; i < kNumPlots * kNumPlots; ++i) { |
| 107 | bool result = fill_plot(atlas.get(), resourceProvider, &uploadTarget, &atlasIDs[i], i*32); |
| 108 | REPORTER_ASSERT(reporter, result); |
| 109 | check(reporter, atlas.get(), 1, 4, 1); |
| 110 | } |
| 111 | |
| 112 | atlas->instantiate(&onFlushResourceProvider); |
| 113 | check(reporter, atlas.get(), 1, 4, 1); |
| 114 | |
| 115 | // Force allocation of a second level |
| 116 | GrDrawOpAtlas::AtlasID atlasID; |
| 117 | bool result = fill_plot(atlas.get(), resourceProvider, &uploadTarget, &atlasID, 4*32); |
| 118 | REPORTER_ASSERT(reporter, result); |
| 119 | check(reporter, atlas.get(), 2, 4, 2); |
| 120 | |
| 121 | // Simulate a lot of draws using only the first plot. The last texture should be compacted. |
| 122 | for (int i = 0; i < 512; ++i) { |
| 123 | atlas->setLastUseToken(atlasIDs[0], uploadTarget.tokenTracker()->nextDrawToken()); |
| 124 | uploadTarget.issueDrawToken(); |
| 125 | uploadTarget.flushToken(); |
| 126 | atlas->compact(uploadTarget.tokenTracker()->nextTokenToFlush()); |
| 127 | } |
| 128 | |
| 129 | check(reporter, atlas.get(), 1, 4, 1); |
| 130 | } |
| 131 | |
| 132 | #endif |