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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkTypes.h"
#if SK_SUPPORT_GPU
#include "GrContextPriv.h"
#include "Test.h"
#include "text/GrAtlasGlyphCache.h"
static const int kNumPlots = 2;
static const int kPlotSize = 32;
static const int kAtlasSize = kNumPlots * kPlotSize;
int GrDrawOpAtlas::numAllocated_TestingOnly() const {
int count = 0;
for (uint32_t i = 0; i < this->maxPages(); ++i) {
if (fProxies[i]->priv().isInstantiated()) {
++count;
}
}
return count;
}
void EvictionFunc(GrDrawOpAtlas::AtlasID atlasID, void*) {
SkASSERT(0); // The unit test shouldn't exercise this code path
}
static void check(skiatest::Reporter* r, GrDrawOpAtlas* atlas,
uint32_t expectedActive, uint32_t expectedMax, int expectedAlloced) {
REPORTER_ASSERT(r, expectedActive == atlas->numActivePages());
REPORTER_ASSERT(r, expectedMax == atlas->maxPages());
REPORTER_ASSERT(r, expectedAlloced == atlas->numAllocated_TestingOnly());
}
class TestingUploadTarget : public GrDeferredUploadTarget {
public:
TestingUploadTarget() { }
const GrTokenTracker* tokenTracker() final {
return &fTokenTracker;
}
GrDeferredUploadToken addInlineUpload(GrDeferredTextureUploadFn&&) final {
SkASSERT(0); // this test shouldn't invoke this code path
return fTokenTracker.nextDrawToken();
}
virtual GrDeferredUploadToken addASAPUpload(GrDeferredTextureUploadFn&& upload) final {
return fTokenTracker.nextTokenToFlush();
}
void issueDrawToken() { fTokenTracker.issueDrawToken(); }
void flushToken() { fTokenTracker.flushToken(); }
private:
GrTokenTracker fTokenTracker;
typedef GrDeferredUploadTarget INHERITED;
};
static bool fill_plot(GrDrawOpAtlas* atlas,
GrResourceProvider* resourceProvider,
GrDeferredUploadTarget* target,
GrDrawOpAtlas::AtlasID* atlasID,
int alpha) {
SkImageInfo ii = SkImageInfo::MakeA8(kPlotSize, kPlotSize);
SkBitmap data;
data.allocPixels(ii);
data.eraseARGB(alpha, 0, 0, 0);
SkIPoint16 loc;
bool result = atlas->addToAtlas(resourceProvider, atlasID, target, kPlotSize, kPlotSize,
data.getAddr(0, 0), &loc);
return result;
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(DrawOpAtlas, reporter, ctxInfo) {
auto context = ctxInfo.grContext();
auto proxyProvider = context->contextPriv().proxyProvider();
auto resourceProvider = context->contextPriv().resourceProvider();
auto drawingManager = context->contextPriv().drawingManager();
GrOnFlushResourceProvider onFlushResourceProvider(drawingManager);
TestingUploadTarget uploadTarget;
std::unique_ptr<GrDrawOpAtlas> atlas = GrDrawOpAtlas::Make(
proxyProvider,
kAlpha_8_GrPixelConfig,
kAtlasSize, kAtlasSize,
kNumPlots, kNumPlots,
GrDrawOpAtlas::AllowMultitexturing::kYes,
EvictionFunc, nullptr);
check(reporter, atlas.get(), 0, 4, 0);
// Fill up the first level
GrDrawOpAtlas::AtlasID atlasIDs[kNumPlots * kNumPlots];
for (int i = 0; i < kNumPlots * kNumPlots; ++i) {
bool result = fill_plot(atlas.get(), resourceProvider, &uploadTarget, &atlasIDs[i], i*32);
REPORTER_ASSERT(reporter, result);
check(reporter, atlas.get(), 1, 4, 1);
}
atlas->instantiate(&onFlushResourceProvider);
check(reporter, atlas.get(), 1, 4, 1);
// Force allocation of a second level
GrDrawOpAtlas::AtlasID atlasID;
bool result = fill_plot(atlas.get(), resourceProvider, &uploadTarget, &atlasID, 4*32);
REPORTER_ASSERT(reporter, result);
check(reporter, atlas.get(), 2, 4, 2);
// Simulate a lot of draws using only the first plot. The last texture should be compacted.
for (int i = 0; i < 512; ++i) {
atlas->setLastUseToken(atlasIDs[0], uploadTarget.tokenTracker()->nextDrawToken());
uploadTarget.issueDrawToken();
uploadTarget.flushToken();
atlas->compact(uploadTarget.tokenTracker()->nextTokenToFlush());
}
check(reporter, atlas.get(), 1, 4, 1);
}
#endif
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