282 lines
9.1 KiB
C++
282 lines
9.1 KiB
C++
/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#if SK_SUPPORT_GPU
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#include "GrContext.h"
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#include "GrContextFactory.h"
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#include "GrGpu.h"
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#include "GrResourceCache.h"
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#include "SkCanvas.h"
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#include "SkSurface.h"
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#include "Test.h"
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static const int gWidth = 640;
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static const int gHeight = 480;
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////////////////////////////////////////////////////////////////////////////////
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static void test_cache(skiatest::Reporter* reporter,
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GrContext* context,
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SkCanvas* canvas) {
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const SkIRect size = SkIRect::MakeWH(gWidth, gHeight);
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SkBitmap src;
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src.allocN32Pixels(size.width(), size.height());
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src.eraseColor(SK_ColorBLACK);
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size_t srcSize = src.getSize();
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size_t initialCacheSize;
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context->getResourceCacheUsage(NULL, &initialCacheSize);
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int oldMaxNum;
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size_t oldMaxBytes;
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context->getResourceCacheLimits(&oldMaxNum, &oldMaxBytes);
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// Set the cache limits so we can fit 10 "src" images and the
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// max number of textures doesn't matter
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size_t maxCacheSize = initialCacheSize + 10*srcSize;
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context->setResourceCacheLimits(1000, maxCacheSize);
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SkBitmap readback;
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readback.allocN32Pixels(size.width(), size.height());
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for (int i = 0; i < 100; ++i) {
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canvas->drawBitmap(src, 0, 0);
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canvas->readPixels(size, &readback);
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// "modify" the src texture
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src.notifyPixelsChanged();
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size_t curCacheSize;
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context->getResourceCacheUsage(NULL, &curCacheSize);
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// we should never go over the size limit
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REPORTER_ASSERT(reporter, curCacheSize <= maxCacheSize);
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}
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context->setResourceCacheLimits(oldMaxNum, oldMaxBytes);
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}
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class TestResource : public GrGpuResource {
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static const size_t kDefaultSize = 100;
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public:
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SK_DECLARE_INST_COUNT(TestResource);
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TestResource(GrGpu* gpu, size_t size = kDefaultSize)
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: INHERITED(gpu, false)
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, fCache(NULL)
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, fToDelete(NULL)
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, fSize(size) {
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++fAlive;
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this->registerWithCache();
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}
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~TestResource() {
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--fAlive;
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if (fToDelete) {
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// Breaks our little 2-element cycle below.
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fToDelete->setDeleteWhenDestroyed(NULL, NULL);
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fCache->deleteResource(fToDelete->getCacheEntry());
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}
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this->release();
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}
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void setSize(size_t size) {
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fSize = size;
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this->didChangeGpuMemorySize();
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}
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size_t gpuMemorySize() const SK_OVERRIDE { return fSize; }
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static int alive() { return fAlive; }
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void setDeleteWhenDestroyed(GrResourceCache* cache, TestResource* resource) {
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fCache = cache;
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fToDelete = resource;
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}
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private:
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GrResourceCache* fCache;
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TestResource* fToDelete;
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size_t fSize;
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static int fAlive;
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typedef GrGpuResource INHERITED;
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};
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int TestResource::fAlive = 0;
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static void test_purge_invalidated(skiatest::Reporter* reporter, GrContext* context) {
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GrCacheID::Domain domain = GrCacheID::GenerateDomain();
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GrCacheID::Key keyData;
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keyData.fData64[0] = 5;
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keyData.fData64[1] = 18;
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GrResourceKey::ResourceType t = GrResourceKey::GenerateResourceType();
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GrResourceKey key(GrCacheID(domain, keyData), t, 0);
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GrResourceCache cache(context->getGpu()->caps(), 5, 30000);
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// Add two resources with the same key that delete each other from the cache when destroyed.
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TestResource* a = new TestResource(context->getGpu());
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TestResource* b = new TestResource(context->getGpu());
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cache.addResource(key, a);
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cache.addResource(key, b);
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// Circle back.
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a->setDeleteWhenDestroyed(&cache, b);
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b->setDeleteWhenDestroyed(&cache, a);
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a->unref();
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b->unref();
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// Add a third independent resource also with the same key.
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GrGpuResource* r = new TestResource(context->getGpu());
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cache.addResource(key, r);
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r->unref();
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// Invalidate all three, all three should be purged and destroyed.
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REPORTER_ASSERT(reporter, 3 == TestResource::alive());
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const GrResourceInvalidatedMessage msg = { key };
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SkMessageBus<GrResourceInvalidatedMessage>::Post(msg);
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cache.purgeAsNeeded();
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REPORTER_ASSERT(reporter, 0 == TestResource::alive());
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}
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static void test_cache_delete_on_destruction(skiatest::Reporter* reporter,
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GrContext* context) {
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GrCacheID::Domain domain = GrCacheID::GenerateDomain();
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GrCacheID::Key keyData;
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keyData.fData64[0] = 5;
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keyData.fData64[1] = 0;
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GrResourceKey::ResourceType t = GrResourceKey::GenerateResourceType();
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GrResourceKey key(GrCacheID(domain, keyData), t, 0);
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{
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{
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GrResourceCache cache(context->getGpu()->caps(), 3, 30000);
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TestResource* a = new TestResource(context->getGpu());
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TestResource* b = new TestResource(context->getGpu());
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cache.addResource(key, a);
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cache.addResource(key, b);
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a->setDeleteWhenDestroyed(&cache, b);
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b->setDeleteWhenDestroyed(&cache, a);
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a->unref();
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b->unref();
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REPORTER_ASSERT(reporter, 2 == TestResource::alive());
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}
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REPORTER_ASSERT(reporter, 0 == TestResource::alive());
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}
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{
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GrResourceCache cache(context->getGpu()->caps(), 3, 30000);
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TestResource* a = new TestResource(context->getGpu());
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TestResource* b = new TestResource(context->getGpu());
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cache.addResource(key, a);
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cache.addResource(key, b);
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a->setDeleteWhenDestroyed(&cache, b);
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b->setDeleteWhenDestroyed(&cache, a);
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a->unref();
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b->unref();
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cache.deleteResource(a->getCacheEntry());
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REPORTER_ASSERT(reporter, 0 == TestResource::alive());
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}
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}
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static void test_resource_size_changed(skiatest::Reporter* reporter,
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GrContext* context) {
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GrCacheID::Domain domain = GrCacheID::GenerateDomain();
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GrResourceKey::ResourceType t = GrResourceKey::GenerateResourceType();
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GrCacheID::Key key1Data;
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key1Data.fData64[0] = 0;
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key1Data.fData64[1] = 0;
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GrResourceKey key1(GrCacheID(domain, key1Data), t, 0);
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GrCacheID::Key key2Data;
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key2Data.fData64[0] = 1;
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key2Data.fData64[1] = 0;
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GrResourceKey key2(GrCacheID(domain, key2Data), t, 0);
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// Test changing resources sizes (both increase & decrease).
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{
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GrResourceCache cache(context->getGpu()->caps(), 2, 300);
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TestResource* a = new TestResource(context->getGpu());
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a->setSize(100); // Test didChangeGpuMemorySize() when not in the cache.
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cache.addResource(key1, a);
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a->unref();
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TestResource* b = new TestResource(context->getGpu());
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b->setSize(100);
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cache.addResource(key2, b);
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b->unref();
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REPORTER_ASSERT(reporter, 200 == cache.getCachedResourceBytes());
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REPORTER_ASSERT(reporter, 2 == cache.getCachedResourceCount());
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static_cast<TestResource*>(cache.find(key2))->setSize(200);
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static_cast<TestResource*>(cache.find(key1))->setSize(50);
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REPORTER_ASSERT(reporter, 250 == cache.getCachedResourceBytes());
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REPORTER_ASSERT(reporter, 2 == cache.getCachedResourceCount());
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}
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// Test increasing a resources size beyond the cache budget.
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{
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GrResourceCache cache(context->getGpu()->caps(), 2, 300);
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TestResource* a = new TestResource(context->getGpu(), 100);
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cache.addResource(key1, a);
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a->unref();
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TestResource* b = new TestResource(context->getGpu(), 100);
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cache.addResource(key2, b);
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b->unref();
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REPORTER_ASSERT(reporter, 200 == cache.getCachedResourceBytes());
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REPORTER_ASSERT(reporter, 2 == cache.getCachedResourceCount());
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static_cast<TestResource*>(cache.find(key2))->setSize(201);
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REPORTER_ASSERT(reporter, NULL == cache.find(key1));
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REPORTER_ASSERT(reporter, 201 == cache.getCachedResourceBytes());
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REPORTER_ASSERT(reporter, 1 == cache.getCachedResourceCount());
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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DEF_GPUTEST(ResourceCache, reporter, factory) {
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for (int type = 0; type < GrContextFactory::kLastGLContextType; ++type) {
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GrContextFactory::GLContextType glType = static_cast<GrContextFactory::GLContextType>(type);
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if (!GrContextFactory::IsRenderingGLContext(glType)) {
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continue;
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}
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GrContext* context = factory->get(glType);
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if (NULL == context) {
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continue;
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}
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GrTextureDesc desc;
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desc.fConfig = kSkia8888_GrPixelConfig;
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desc.fFlags = kRenderTarget_GrTextureFlagBit;
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desc.fWidth = gWidth;
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desc.fHeight = gHeight;
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SkImageInfo info = SkImageInfo::MakeN32Premul(gWidth, gHeight);
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SkAutoTUnref<SkSurface> surface(SkSurface::NewRenderTarget(context, info));
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test_cache(reporter, context, surface->getCanvas());
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test_purge_invalidated(reporter, context);
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test_cache_delete_on_destruction(reporter, context);
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test_resource_size_changed(reporter, context);
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}
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}
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#endif
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