1 /*
2 * Copyright 2017 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 "Test.h"
9
10 #include "GrClip.h"
11 #include "GrContext.h"
12 #include "GrContextPriv.h"
13 #include "GrResourceCache.h"
14 #include "GrShape.h"
15 #include "GrSoftwarePathRenderer.h"
16 #include "GrStyle.h"
17 #include "SkPath.h"
18 #include "effects/GrPorterDuffXferProcessor.h"
19 #include "ops/GrTessellatingPathRenderer.h"
20
create_concave_path()21 static SkPath create_concave_path() {
22 SkPath path;
23 path.moveTo(100, 0);
24 path.lineTo(200, 200);
25 path.lineTo(100, 150);
26 path.lineTo(0, 200);
27 path.close();
28 return path;
29 }
30
draw_path(GrContext * ctx,GrRenderTargetContext * renderTargetContext,const SkPath & path,GrPathRenderer * pr,GrAAType aaType,const GrStyle & style)31 static void draw_path(GrContext* ctx,
32 GrRenderTargetContext* renderTargetContext,
33 const SkPath& path,
34 GrPathRenderer* pr,
35 GrAAType aaType,
36 const GrStyle& style) {
37 GrPaint paint;
38 paint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc));
39
40 GrNoClip noClip;
41 SkIRect clipConservativeBounds = SkIRect::MakeWH(renderTargetContext->width(),
42 renderTargetContext->height());
43 GrShape shape(path, style);
44 if (shape.style().applies()) {
45 shape = shape.applyStyle(GrStyle::Apply::kPathEffectAndStrokeRec, 1.0f);
46 }
47 SkMatrix matrix = SkMatrix::I();
48 GrPathRenderer::DrawPathArgs args{ctx,
49 std::move(paint),
50 &GrUserStencilSettings::kUnused,
51 renderTargetContext,
52 &noClip,
53 &clipConservativeBounds,
54 &matrix,
55 &shape,
56 aaType,
57 false};
58 pr->drawPath(args);
59 }
60
cache_non_scratch_resources_equals(GrResourceCache * cache,int expected)61 static bool cache_non_scratch_resources_equals(GrResourceCache* cache, int expected) {
62 #if GR_CACHE_STATS
63 GrResourceCache::Stats stats;
64 cache->getStats(&stats);
65 return (stats.fTotal - stats.fScratch) == expected;
66 #else
67 return true;
68 #endif
69 }
70
test_path(skiatest::Reporter * reporter,std::function<SkPath (void)> createPath,std::function<GrPathRenderer * (GrContext *)> createPathRenderer,int expected,GrAAType aaType=GrAAType::kNone,GrStyle style=GrStyle (SkStrokeRec::kFill_InitStyle))71 static void test_path(skiatest::Reporter* reporter,
72 std::function<SkPath(void)> createPath,
73 std::function<GrPathRenderer*(GrContext*)> createPathRenderer,
74 int expected,
75 GrAAType aaType = GrAAType::kNone,
76 GrStyle style = GrStyle(SkStrokeRec::kFill_InitStyle)) {
77 sk_sp<GrContext> ctx = GrContext::MakeMock(nullptr);
78 // The cache needs to be big enough that nothing gets flushed, or our expectations can be wrong
79 ctx->setResourceCacheLimits(100, 8000000);
80 GrResourceCache* cache = ctx->priv().getResourceCache();
81
82 const GrBackendFormat format =
83 ctx->priv().caps()->getBackendFormatFromColorType(kRGBA_8888_SkColorType);
84
85 sk_sp<GrRenderTargetContext> rtc(ctx->priv().makeDeferredRenderTargetContext(
86 format, SkBackingFit::kApprox, 800, 800, kRGBA_8888_GrPixelConfig, nullptr, 1,
87 GrMipMapped::kNo, kTopLeft_GrSurfaceOrigin));
88 if (!rtc) {
89 return;
90 }
91
92 sk_sp<GrPathRenderer> pathRenderer(createPathRenderer(ctx.get()));
93 SkPath path = createPath();
94
95 // Initially, cache only has the render target context
96 REPORTER_ASSERT(reporter, cache_non_scratch_resources_equals(cache, 0));
97
98 // Draw the path, check that new resource count matches expectations
99 draw_path(ctx.get(), rtc.get(), path, pathRenderer.get(), aaType, style);
100 ctx->flush();
101 REPORTER_ASSERT(reporter, cache_non_scratch_resources_equals(cache, expected));
102
103 // Nothing should be purgeable yet
104 cache->purgeAsNeeded();
105 REPORTER_ASSERT(reporter, cache_non_scratch_resources_equals(cache, expected));
106
107 // Reset the path to change the GenID, which should invalidate one resource in the cache.
108 // Some path renderers may leave other unique-keyed resources in the cache, though.
109 path.reset();
110 cache->purgeAsNeeded();
111 REPORTER_ASSERT(reporter, cache_non_scratch_resources_equals(cache, expected - 1));
112 }
113
114 // Test that deleting the original path invalidates the VBs cached by the tessellating path renderer
115 DEF_GPUTEST(TessellatingPathRendererCacheTest, reporter, /* options */) {
__anon3792aa860102(GrContext*) 116 auto createPR = [](GrContext*) {
117 return new GrTessellatingPathRenderer();
118 };
119
120 // Tessellating path renderer creates a single vertex buffer for non-AA paths. No other
121 // resources should be created.
122 const int kExpectedResources = 1;
123
124 test_path(reporter, create_concave_path, createPR, kExpectedResources);
125
126 // Test with a style that alters the path geometry. This needs to attach the invalidation logic
127 // to the original path, not the modified path produced by the style.
128 SkPaint paint;
129 paint.setStyle(SkPaint::kStroke_Style);
130 paint.setStrokeWidth(1);
131 GrStyle style(paint);
132 test_path(reporter, create_concave_path, createPR, kExpectedResources, GrAAType::kNone, style);
133 }
134
135 // Test that deleting the original path invalidates the textures cached by the SW path renderer
136 DEF_GPUTEST(SoftwarePathRendererCacheTest, reporter, /* options */) {
__anon3792aa860202(GrContext* ctx) 137 auto createPR = [](GrContext* ctx) {
138 return new GrSoftwarePathRenderer(ctx->priv().proxyProvider(), true);
139 };
140
141 // Software path renderer creates a mask texture and renders with a non-AA rect, but the flush
142 // only contains a single quad so GrFillRectOp doesn't need to use the shared index buffer.
143 const int kExpectedResources = 1;
144
145 test_path(reporter, create_concave_path, createPR, kExpectedResources, GrAAType::kCoverage);
146
147 // Test with a style that alters the path geometry. This needs to attach the invalidation logic
148 // to the original path, not the modified path produced by the style.
149 SkPaint paint;
150 paint.setStyle(SkPaint::kStroke_Style);
151 paint.setStrokeWidth(1);
152 GrStyle style(paint);
153 test_path(reporter, create_concave_path, createPR, kExpectedResources, GrAAType::kCoverage,
154 style);
155 }
156