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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Test.h"
#include "SkPath.h"
#if SK_SUPPORT_GPU
#include "GrClip.h"
#include "GrContext.h"
#include "GrContextPriv.h"
#include "GrResourceCache.h"
#include "GrSoftwarePathRenderer.h"
#include "effects/GrPorterDuffXferProcessor.h"
#include "ops/GrTessellatingPathRenderer.h"
static SkPath create_concave_path() {
SkPath path;
path.moveTo(100, 0);
path.lineTo(200, 200);
path.lineTo(100, 150);
path.lineTo(0, 200);
path.close();
return path;
}
static void draw_path(GrContext* ctx,
GrRenderTargetContext* renderTargetContext,
const SkPath& path,
GrPathRenderer* pr,
GrAAType aaType,
const GrStyle& style) {
GrPaint paint;
paint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc));
GrNoClip noClip;
SkIRect clipConservativeBounds = SkIRect::MakeWH(renderTargetContext->width(),
renderTargetContext->height());
GrShape shape(path, style);
if (shape.style().applies()) {
shape = shape.applyStyle(GrStyle::Apply::kPathEffectAndStrokeRec, 1.0f);
}
SkMatrix matrix = SkMatrix::I();
GrPathRenderer::DrawPathArgs args{ctx,
std::move(paint),
&GrUserStencilSettings::kUnused,
renderTargetContext,
&noClip,
&clipConservativeBounds,
&matrix,
&shape,
aaType,
false};
pr->drawPath(args);
}
static bool cache_non_scratch_resources_equals(GrResourceCache* cache, int expected) {
#if GR_CACHE_STATS
GrResourceCache::Stats stats;
cache->getStats(&stats);
return (stats.fTotal - stats.fScratch) == expected;
#else
return true;
#endif
}
static void 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)) {
sk_sp<GrContext> ctx = GrContext::MakeMock(nullptr);
// The cache needs to be big enough that nothing gets flushed, or our expectations can be wrong
ctx->setResourceCacheLimits(100, 8000000);
GrResourceCache* cache = ctx->contextPriv().getResourceCache();
sk_sp<GrRenderTargetContext> rtc(ctx->contextPriv().makeDeferredRenderTargetContext(
SkBackingFit::kApprox, 800, 800, kRGBA_8888_GrPixelConfig, nullptr, 1, GrMipMapped::kNo,
kTopLeft_GrSurfaceOrigin));
if (!rtc) {
return;
}
sk_sp<GrPathRenderer> pathRenderer(createPathRenderer(ctx.get()));
SkPath path = createPath();
// Initially, cache only has the render target context
REPORTER_ASSERT(reporter, cache_non_scratch_resources_equals(cache, 0));
// Draw the path, check that new resource count matches expectations
draw_path(ctx.get(), rtc.get(), path, pathRenderer.get(), aaType, style);
ctx->flush();
REPORTER_ASSERT(reporter, cache_non_scratch_resources_equals(cache, expected));
// Nothing should be purgeable yet
cache->purgeAsNeeded();
REPORTER_ASSERT(reporter, cache_non_scratch_resources_equals(cache, expected));
// Reset the path to change the GenID, which should invalidate one resource in the cache.
// Some path renderers may leave other unique-keyed resources in the cache, though.
path.reset();
cache->purgeAsNeeded();
REPORTER_ASSERT(reporter, cache_non_scratch_resources_equals(cache, expected - 1));
}
// Test that deleting the original path invalidates the VBs cached by the tessellating path renderer
DEF_GPUTEST(TessellatingPathRendererCacheTest, reporter, /* options */) {
auto createPR = [](GrContext*) {
return new GrTessellatingPathRenderer();
};
// Tessellating path renderer creates a single vertex buffer for non-AA paths. No other
// resources should be created.
const int kExpectedResources = 1;
test_path(reporter, create_concave_path, createPR, kExpectedResources);
// Test with a style that alters the path geometry. This needs to attach the invalidation logic
// to the original path, not the modified path produced by the style.
SkPaint paint;
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(1);
GrStyle style(paint);
test_path(reporter, create_concave_path, createPR, kExpectedResources, GrAAType::kNone, style);
}
// Test that deleting the original path invalidates the textures cached by the SW path renderer
DEF_GPUTEST(SoftwarePathRendererCacheTest, reporter, /* options */) {
auto createPR = [](GrContext* ctx) {
return new GrSoftwarePathRenderer(ctx->contextPriv().proxyProvider(), true);
};
// Software path renderer creates a mask texture, but also renders with a non-AA rect, which
// refs the quad index buffer.
const int kExpectedResources = 2;
test_path(reporter, create_concave_path, createPR, kExpectedResources, GrAAType::kCoverage);
// Test with a style that alters the path geometry. This needs to attach the invalidation logic
// to the original path, not the modified path produced by the style.
SkPaint paint;
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(1);
GrStyle style(paint);
test_path(reporter, create_concave_path, createPR, kExpectedResources, GrAAType::kCoverage,
style);
}
#endif
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