1 /* 2 * Copyright 2013 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 // This is a GPU test 11 #if SK_SUPPORT_GPU 12 #include "GrContextFactory.h" 13 #include "SkGpuDevice.h" 14 15 static const int gWidth = 640; 16 static const int gHeight = 480; 17 18 //////////////////////////////////////////////////////////////////////////////// 19 static void test_cache(skiatest::Reporter* reporter, 20 GrContext* context, 21 SkCanvas* canvas) { 22 const SkIRect size = SkIRect::MakeWH(gWidth, gHeight); 23 24 SkBitmap src; 25 src.setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.height()); 26 src.allocPixels(); 27 src.eraseColor(SK_ColorBLACK); 28 size_t srcSize = src.getSize(); 29 30 size_t initialCacheSize = context->getGpuTextureCacheBytes(); 31 32 int oldMaxNum; 33 size_t oldMaxBytes; 34 context->getTextureCacheLimits(&oldMaxNum, &oldMaxBytes); 35 36 // Set the cache limits so we can fit 10 "src" images and the 37 // max number of textures doesn't matter 38 size_t maxCacheSize = initialCacheSize + 10*srcSize; 39 context->setTextureCacheLimits(1000, maxCacheSize); 40 41 SkBitmap readback; 42 readback.setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.height()); 43 readback.allocPixels(); 44 45 for (int i = 0; i < 100; ++i) { 46 canvas->drawBitmap(src, 0, 0); 47 canvas->readPixels(size, &readback); 48 49 // "modify" the src texture 50 src.notifyPixelsChanged(); 51 52 size_t curCacheSize = context->getGpuTextureCacheBytes(); 53 54 // we should never go over the size limit 55 REPORTER_ASSERT(reporter, curCacheSize <= maxCacheSize); 56 } 57 58 context->setTextureCacheLimits(oldMaxNum, oldMaxBytes); 59 } 60 61 //////////////////////////////////////////////////////////////////////////////// 62 static void TestResourceCache(skiatest::Reporter* reporter, GrContextFactory* factory) { 63 for (int type = 0; type < GrContextFactory::kLastGLContextType; ++type) { 64 GrContextFactory::GLContextType glType = static_cast<GrContextFactory::GLContextType>(type); 65 if (!GrContextFactory::IsRenderingGLContext(glType)) { 66 continue; 67 } 68 GrContext* context = factory->get(glType); 69 if (NULL == context) { 70 continue; 71 } 72 73 GrTextureDesc desc; 74 desc.fConfig = kSkia8888_GrPixelConfig; 75 desc.fFlags = kRenderTarget_GrTextureFlagBit; 76 desc.fWidth = gWidth; 77 desc.fHeight = gHeight; 78 79 SkAutoTUnref<GrTexture> texture(context->createUncachedTexture(desc, NULL, 0)); 80 SkAutoTUnref<SkGpuDevice> device(SkNEW_ARGS(SkGpuDevice, (context, texture.get()))); 81 SkCanvas canvas(device.get()); 82 83 test_cache(reporter, context, &canvas); 84 } 85 } 86 87 //////////////////////////////////////////////////////////////////////////////// 88 #include "TestClassDef.h" 89 DEFINE_GPUTESTCLASS("ResourceCache", ResourceCacheTestClass, TestResourceCache) 90 91 #endif 92
