diff options
Diffstat (limited to 'tests')
-rw-r--r-- | tests/ResourceCacheTest.cpp | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/tests/ResourceCacheTest.cpp b/tests/ResourceCacheTest.cpp new file mode 100644 index 0000000000..59182844fb --- /dev/null +++ b/tests/ResourceCacheTest.cpp @@ -0,0 +1,91 @@ +/* + * Copyright 2013 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" + +// This is a GPU test +#if SK_SUPPORT_GPU +#include "GrContextFactory.h" +#include "SkGpuDevice.h" + +static const int gWidth = 640; +static const int gHeight = 480; + +//////////////////////////////////////////////////////////////////////////////// +static void test_cache(skiatest::Reporter* reporter, + GrContext* context, + SkCanvas* canvas) { + const SkIRect size = SkIRect::MakeWH(gWidth, gHeight); + + SkBitmap src; + src.setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.height()); + src.allocPixels(); + src.eraseColor(SK_ColorBLACK); + size_t srcSize = src.getSize(); + + size_t initialCacheSize = context->getGpuTextureCacheBytes(); + + int oldMaxNum; + size_t oldMaxBytes; + context->getTextureCacheLimits(&oldMaxNum, &oldMaxBytes); + + // Set the cache limits so we can fit 10 "src" images and the + // max number of textures doesn't matter + size_t maxCacheSize = initialCacheSize + 10*srcSize; + context->setTextureCacheLimits(1000, maxCacheSize); + + SkBitmap readback; + readback.setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.height()); + readback.allocPixels(); + + for (int i = 0; i < 100; ++i) { + canvas->drawBitmap(src, 0, 0); + canvas->readPixels(size, &readback); + + // "modify" the src texture + src.notifyPixelsChanged(); + + size_t curCacheSize = context->getGpuTextureCacheBytes(); + + // we should never go over the size limit + REPORTER_ASSERT(reporter, curCacheSize <= maxCacheSize); + } + + context->setTextureCacheLimits(oldMaxNum, oldMaxBytes); +} + +//////////////////////////////////////////////////////////////////////////////// +static void TestResourceCache(skiatest::Reporter* reporter, GrContextFactory* factory) { + for (int type = 0; type < GrContextFactory::kLastGLContextType; ++type) { + GrContextFactory::GLContextType glType = static_cast<GrContextFactory::GLContextType>(type); + if (!GrContextFactory::IsRenderingGLContext(glType)) { + continue; + } + GrContext* context = factory->get(glType); + if (NULL == context) { + continue; + } + + GrTextureDesc desc; + desc.fConfig = kSkia8888_GrPixelConfig; + desc.fFlags = kRenderTarget_GrTextureFlagBit; + desc.fWidth = gWidth; + desc.fHeight = gHeight; + + SkAutoTUnref<GrTexture> texture(context->createUncachedTexture(desc, NULL, 0)); + SkAutoTUnref<SkGpuDevice> device(SkNEW_ARGS(SkGpuDevice, (context, texture.get()))); + SkCanvas canvas(device.get()); + + test_cache(reporter, context, &canvas); + } +} + +//////////////////////////////////////////////////////////////////////////////// +#include "TestClassDef.h" +DEFINE_GPUTESTCLASS("ResourceCache", ResourceCacheTestClass, TestResourceCache) + +#endif |