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/*
* 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
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