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skia2/tests/ImageFilterCacheTest.cpp
Robert Phillips 27467658dd Reduce reliance on the SkImage_Gpu's GrContext pointer 
The SkImages aren't guaranteed to have a full fledged GrContext (e.g., if they are promise images created outside of a DDL recorder). This CL starts the process if lessening Skia's reliance on what ever the SkImage has cached.

Change-Id: I0181d09417e1ea2ced7706a722e2815f3ceee870
Reviewed-on: https://skia-review.googlesource.com/c/182974
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2019-01-11 16:07:56 +00:00

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/*
* Copyright 2016 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 "SkBitmap.h"
#include "SkColorFilter.h"
#include "SkColorFilterImageFilter.h"
#include "SkImage.h"
#include "SkImageFilter.h"
#include "SkImageFilterCache.h"
#include "SkMatrix.h"
#include "SkSpecialImage.h"
static const int kSmallerSize = 10;
static const int kPad = 3;
static const int kFullSize = kSmallerSize + 2 * kPad;
static SkBitmap create_bm() {
SkBitmap bm;
bm.allocN32Pixels(kFullSize, kFullSize, true);
bm.eraseColor(SK_ColorTRANSPARENT);
return bm;
}
static sk_sp<SkImageFilter> make_filter() {
sk_sp<SkColorFilter> filter(SkColorFilter::MakeModeFilter(SK_ColorBLUE,
SkBlendMode::kSrcIn));
return SkColorFilterImageFilter::Make(std::move(filter), nullptr, nullptr);
}
// Ensure the cache can return a cached image
static void test_find_existing(skiatest::Reporter* reporter,
const sk_sp<SkSpecialImage>& image,
const sk_sp<SkSpecialImage>& subset) {
static const size_t kCacheSize = 1000000;
sk_sp<SkImageFilterCache> cache(SkImageFilterCache::Create(kCacheSize));
SkIRect clip = SkIRect::MakeWH(100, 100);
SkImageFilterCacheKey key1(0, SkMatrix::I(), clip, image->uniqueID(), image->subset());
SkImageFilterCacheKey key2(0, SkMatrix::I(), clip, subset->uniqueID(), subset->subset());
SkIPoint offset = SkIPoint::Make(3, 4);
auto filter = make_filter();
cache->set(key1, image.get(), offset, filter.get());
SkIPoint foundOffset;
sk_sp<SkSpecialImage> foundImage = cache->get(key1, &foundOffset);
REPORTER_ASSERT(reporter, foundImage);
REPORTER_ASSERT(reporter, offset == foundOffset);
REPORTER_ASSERT(reporter, !cache->get(key2, &foundOffset));
}
// If either id is different or the clip or the matrix are different the
// cached image won't be found. Even if it is caching the same bitmap.
static void test_dont_find_if_diff_key(skiatest::Reporter* reporter,
const sk_sp<SkSpecialImage>& image,
const sk_sp<SkSpecialImage>& subset) {
static const size_t kCacheSize = 1000000;
sk_sp<SkImageFilterCache> cache(SkImageFilterCache::Create(kCacheSize));
SkIRect clip1 = SkIRect::MakeWH(100, 100);
SkIRect clip2 = SkIRect::MakeWH(200, 200);
SkImageFilterCacheKey key0(0, SkMatrix::I(), clip1, image->uniqueID(), image->subset());
SkImageFilterCacheKey key1(1, SkMatrix::I(), clip1, image->uniqueID(), image->subset());
SkImageFilterCacheKey key2(0, SkMatrix::MakeTrans(5, 5), clip1,
image->uniqueID(), image->subset());
SkImageFilterCacheKey key3(0, SkMatrix::I(), clip2, image->uniqueID(), image->subset());
SkImageFilterCacheKey key4(0, SkMatrix::I(), clip1, subset->uniqueID(), subset->subset());
SkIPoint offset = SkIPoint::Make(3, 4);
auto filter = make_filter();
cache->set(key0, image.get(), offset, filter.get());
SkIPoint foundOffset;
REPORTER_ASSERT(reporter, !cache->get(key1, &foundOffset));
REPORTER_ASSERT(reporter, !cache->get(key2, &foundOffset));
REPORTER_ASSERT(reporter, !cache->get(key3, &foundOffset));
REPORTER_ASSERT(reporter, !cache->get(key4, &foundOffset));
}
// Test purging when the max cache size is exceeded
static void test_internal_purge(skiatest::Reporter* reporter, const sk_sp<SkSpecialImage>& image) {
SkASSERT(image->getSize());
const size_t kCacheSize = image->getSize() + 10;
sk_sp<SkImageFilterCache> cache(SkImageFilterCache::Create(kCacheSize));
SkIRect clip = SkIRect::MakeWH(100, 100);
SkImageFilterCacheKey key1(0, SkMatrix::I(), clip, image->uniqueID(), image->subset());
SkImageFilterCacheKey key2(1, SkMatrix::I(), clip, image->uniqueID(), image->subset());
SkIPoint offset = SkIPoint::Make(3, 4);
auto filter1 = make_filter();
cache->set(key1, image.get(), offset, filter1.get());
SkIPoint foundOffset;
REPORTER_ASSERT(reporter, cache->get(key1, &foundOffset));
// This should knock the first one out of the cache
auto filter2 = make_filter();
cache->set(key2, image.get(), offset, filter2.get());
REPORTER_ASSERT(reporter, cache->get(key2, &foundOffset));
REPORTER_ASSERT(reporter, !cache->get(key1, &foundOffset));
}
// Exercise the purgeByKey and purge methods
static void test_explicit_purging(skiatest::Reporter* reporter,
const sk_sp<SkSpecialImage>& image,
const sk_sp<SkSpecialImage>& subset) {
static const size_t kCacheSize = 1000000;
sk_sp<SkImageFilterCache> cache(SkImageFilterCache::Create(kCacheSize));
SkIRect clip = SkIRect::MakeWH(100, 100);
SkImageFilterCacheKey key1(0, SkMatrix::I(), clip, image->uniqueID(), image->subset());
SkImageFilterCacheKey key2(1, SkMatrix::I(), clip, subset->uniqueID(), image->subset());
SkIPoint offset = SkIPoint::Make(3, 4);
auto filter1 = make_filter();
auto filter2 = make_filter();
cache->set(key1, image.get(), offset, filter1.get());
cache->set(key2, image.get(), offset, filter2.get());
SkDEBUGCODE(REPORTER_ASSERT(reporter, 2 == cache->count());)
SkIPoint foundOffset;
REPORTER_ASSERT(reporter, cache->get(key1, &foundOffset));
REPORTER_ASSERT(reporter, cache->get(key2, &foundOffset));
cache->purgeByImageFilter(filter1.get());
SkDEBUGCODE(REPORTER_ASSERT(reporter, 1 == cache->count());)
REPORTER_ASSERT(reporter, !cache->get(key1, &foundOffset));
REPORTER_ASSERT(reporter, cache->get(key2, &foundOffset));
cache->purge();
SkDEBUGCODE(REPORTER_ASSERT(reporter, 0 == cache->count());)
REPORTER_ASSERT(reporter, !cache->get(key1, &foundOffset));
REPORTER_ASSERT(reporter, !cache->get(key2, &foundOffset));
}
DEF_TEST(ImageFilterCache_RasterBacked, reporter) {
SkBitmap srcBM = create_bm();
const SkIRect& full = SkIRect::MakeWH(kFullSize, kFullSize);
sk_sp<SkSpecialImage> fullImg(SkSpecialImage::MakeFromRaster(full, srcBM));
const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
sk_sp<SkSpecialImage> subsetImg(SkSpecialImage::MakeFromRaster(subset, srcBM));
test_find_existing(reporter, fullImg, subsetImg);
test_dont_find_if_diff_key(reporter, fullImg, subsetImg);
test_internal_purge(reporter, fullImg);
test_explicit_purging(reporter, fullImg, subsetImg);
}
// Shared test code for both the raster and gpu-backed image cases
static void test_image_backed(skiatest::Reporter* reporter,
GrContext* context,
const sk_sp<SkImage>& srcImage) {
const SkIRect& full = SkIRect::MakeWH(kFullSize, kFullSize);
sk_sp<SkSpecialImage> fullImg(SkSpecialImage::MakeFromImage(context, full, srcImage));
const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
sk_sp<SkSpecialImage> subsetImg(SkSpecialImage::MakeFromImage(context, subset, srcImage));
test_find_existing(reporter, fullImg, subsetImg);
test_dont_find_if_diff_key(reporter, fullImg, subsetImg);
test_internal_purge(reporter, fullImg);
test_explicit_purging(reporter, fullImg, subsetImg);
}
DEF_TEST(ImageFilterCache_ImageBackedRaster, reporter) {
SkBitmap srcBM = create_bm();
sk_sp<SkImage> srcImage(SkImage::MakeFromBitmap(srcBM));
test_image_backed(reporter, nullptr, srcImage);
}
#include "GrContext.h"
#include "GrContextPriv.h"
#include "GrProxyProvider.h"
#include "GrResourceProvider.h"
#include "GrSurfaceProxyPriv.h"
#include "GrTexture.h"
#include "GrTextureProxy.h"
static sk_sp<GrTextureProxy> create_proxy(GrProxyProvider* proxyProvider) {
SkBitmap srcBM = create_bm();
sk_sp<SkImage> srcImage(SkImage::MakeFromBitmap(srcBM));
return proxyProvider->createTextureProxy(srcImage, kNone_GrSurfaceFlags, 1,
SkBudgeted::kYes, SkBackingFit::kExact);
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterCache_ImageBackedGPU, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
sk_sp<GrTextureProxy> srcProxy(create_proxy(context->contextPriv().proxyProvider()));
if (!srcProxy) {
return;
}
if (!srcProxy->instantiate(context->contextPriv().resourceProvider())) {
return;
}
GrTexture* tex = srcProxy->peekTexture();
GrBackendTexture backendTex = tex->getBackendTexture();
GrSurfaceOrigin texOrigin = kTopLeft_GrSurfaceOrigin;
sk_sp<SkImage> srcImage(SkImage::MakeFromTexture(context,
backendTex,
texOrigin,
kRGBA_8888_SkColorType,
kPremul_SkAlphaType, nullptr,
nullptr, nullptr));
if (!srcImage) {
return;
}
GrSurfaceOrigin readBackOrigin;
GrBackendTexture readBackBackendTex = srcImage->getBackendTexture(false, &readBackOrigin);
if (!GrBackendTexture::TestingOnly_Equals(readBackBackendTex, backendTex)) {
ERRORF(reporter, "backend mismatch\n");
}
REPORTER_ASSERT(reporter, GrBackendTexture::TestingOnly_Equals(readBackBackendTex, backendTex));
if (readBackOrigin != texOrigin) {
ERRORF(reporter, "origin mismatch %d %d\n", readBackOrigin, texOrigin);
}
REPORTER_ASSERT(reporter, readBackOrigin == texOrigin);
test_image_backed(reporter, context, srcImage);
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterCache_GPUBacked, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
sk_sp<GrTextureProxy> srcProxy(create_proxy(context->contextPriv().proxyProvider()));
if (!srcProxy) {
return;
}
const SkIRect& full = SkIRect::MakeWH(kFullSize, kFullSize);
sk_sp<SkSpecialImage> fullImg(SkSpecialImage::MakeDeferredFromGpu(
context, full,
kNeedNewImageUniqueID_SpecialImage,
srcProxy, nullptr));
const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
sk_sp<SkSpecialImage> subsetImg(SkSpecialImage::MakeDeferredFromGpu(
context, subset,
kNeedNewImageUniqueID_SpecialImage,
srcProxy, nullptr));
test_find_existing(reporter, fullImg, subsetImg);
test_dont_find_if_diff_key(reporter, fullImg, subsetImg);
test_internal_purge(reporter, fullImg);
test_explicit_purging(reporter, fullImg, subsetImg);
}
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