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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 "SkGraphics.h"
#include "SkMutex.h"
#include "SkRemoteGlyphCache.h"
#include "SkStrikeCache.h"
#include "SkSurface.h"
#include "SkTextBlob.h"
#include "SkTypeface_remote.h"
#include "Test.h"
class DiscardableManager : public SkStrikeServer::DiscardableHandleManager,
public SkStrikeClient::DiscardableHandleManager {
public:
DiscardableManager() = default;
~DiscardableManager() override = default;
// Server implementation.
SkDiscardableHandleId createHandle() override {
// Handles starts as locked.
fLockedHandles.add(++fNextHandleId);
return fNextHandleId;
}
bool lockHandle(SkDiscardableHandleId id) override {
if (id <= fLastDeletedHandleId) return false;
fLockedHandles.add(id);
return true;
}
// Client implementation.
bool deleteHandle(SkDiscardableHandleId id) override { return id <= fLastDeletedHandleId; }
void unlockAll() { fLockedHandles.reset(); }
void unlockAndDeleteAll() {
unlockAll();
fLastDeletedHandleId = fNextHandleId;
}
const SkTHashSet<SkDiscardableHandleId>& lockedHandles() const { return fLockedHandles; }
SkDiscardableHandleId handleCount() { return fNextHandleId; }
private:
SkDiscardableHandleId fNextHandleId = 0u;
SkDiscardableHandleId fLastDeletedHandleId = 0u;
SkTHashSet<SkDiscardableHandleId> fLockedHandles;
};
sk_sp<SkTextBlob> buildTextBlob(sk_sp<SkTypeface> tf, int glyphCount) {
SkPaint font;
font.setTypeface(tf);
font.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
font.setTextAlign(SkPaint::kLeft_Align);
font.setStyle(SkPaint::kFill_Style);
font.setHinting(SkPaint::kNormal_Hinting);
font.setTextSize(1u);
SkTextBlobBuilder builder;
SkRect bounds = SkRect::MakeWH(10, 10);
const auto& runBuffer = builder.allocRunPosH(font, glyphCount, 0, &bounds);
for (int i = 0; i < glyphCount; i++) runBuffer.glyphs[i] = static_cast<SkGlyphID>(i);
return builder.make();
}
SkBitmap RasterBlob(sk_sp<SkTextBlob> blob, int width, int height) {
auto surface = SkSurface::MakeRasterN32Premul(width, height);
SkPaint paint;
surface->getCanvas()->drawTextBlob(blob.get(), 0u, 0u, paint);
SkBitmap bitmap;
bitmap.allocN32Pixels(width, height);
surface->readPixels(bitmap, 0, 0);
return bitmap;
}
DEF_TEST(SkRemoteGlyphCache_TypefaceSerialization, reporter) {
sk_sp<DiscardableManager> discardableManager = sk_make_sp<DiscardableManager>();
SkStrikeServer server(discardableManager.get());
SkStrikeClient client(discardableManager);
auto server_tf = SkTypeface::MakeDefault();
auto tf_data = server.serializeTypeface(server_tf.get());
auto client_tf = client.deserializeTypeface(tf_data->data(), tf_data->size());
REPORTER_ASSERT(reporter, client_tf);
REPORTER_ASSERT(reporter, SkTypefaceProxy::DownCast(client_tf.get())->remoteTypefaceID() ==
server_tf->uniqueID());
}
#if 0
TODO(khushalsagar): Re-enable once crbug.com/831354 is fixed.
DEF_TEST(SkRemoteGlyphCache_StrikeSerialization, reporter) {
sk_sp<DiscardableManager> discardableManager = sk_make_sp<DiscardableManager>();
SkStrikeServer server(discardableManager.get());
SkStrikeClient client(discardableManager);
// Server.
auto serverTf = SkTypeface::MakeFromName("monospace", SkFontStyle());
auto serverTfData = server.serializeTypeface(serverTf.get());
int glyphCount = 10;
auto serverBlob = buildTextBlob(serverTf, glyphCount);
const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
SkTextBlobCacheDiffCanvas cache_diff_canvas(10, 10, SkMatrix::I(), props, &server);
SkPaint paint;
cache_diff_canvas.drawTextBlob(serverBlob.get(), 0, 0, paint);
std::vector<uint8_t> serverStrikeData;
server.writeStrikeData(&serverStrikeData);
// Client.
auto clientTf = client.deserializeTypeface(serverTfData->data(), serverTfData->size());
REPORTER_ASSERT(reporter,
client.readStrikeData(serverStrikeData.data(), serverStrikeData.size()));
auto clientBlob = buildTextBlob(clientTf, glyphCount);
SkBitmap expected = RasterBlob(serverBlob, 10, 10);
SkBitmap actual = RasterBlob(clientBlob, 10, 10);
for (int i = 0; i < expected.width(); ++i) {
for (int j = 0; j < expected.height(); ++j) {
REPORTER_ASSERT(reporter, expected.getColor(i, j) == actual.getColor(i, j));
}
}
}
#endif
DEF_TEST(SkRemoteGlyphCache_StrikeLockingServer, reporter) {
sk_sp<DiscardableManager> discardableManager = sk_make_sp<DiscardableManager>();
SkStrikeServer server(discardableManager.get());
SkStrikeClient client(discardableManager);
auto serverTf = SkTypeface::MakeFromName("monospace", SkFontStyle());
server.serializeTypeface(serverTf.get());
int glyphCount = 10;
auto serverBlob = buildTextBlob(serverTf, glyphCount);
const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
SkTextBlobCacheDiffCanvas cache_diff_canvas(10, 10, SkMatrix::I(), props, &server);
SkPaint paint;
cache_diff_canvas.drawTextBlob(serverBlob.get(), 0, 0, paint);
// The strike from the blob should be locked after it has been drawn on the canvas.
REPORTER_ASSERT(reporter, discardableManager->handleCount() == 1u);
REPORTER_ASSERT(reporter, discardableManager->lockedHandles().count() == 1u);
// Write the strike data and unlock everything. Re-analyzing the blob should lock the handle
// again.
std::vector<uint8_t> fontData;
server.writeStrikeData(&fontData);
discardableManager->unlockAll();
REPORTER_ASSERT(reporter, discardableManager->lockedHandles().count() == 0u);
cache_diff_canvas.drawTextBlob(serverBlob.get(), 0, 0, paint);
REPORTER_ASSERT(reporter, discardableManager->handleCount() == 1u);
REPORTER_ASSERT(reporter, discardableManager->lockedHandles().count() == 1u);
}
DEF_TEST(SkRemoteGlyphCache_StrikeDeletionServer, reporter) {
sk_sp<DiscardableManager> discardableManager = sk_make_sp<DiscardableManager>();
SkStrikeServer server(discardableManager.get());
SkStrikeClient client(discardableManager);
auto serverTf = SkTypeface::MakeFromName("monospace", SkFontStyle());
server.serializeTypeface(serverTf.get());
int glyphCount = 10;
auto serverBlob = buildTextBlob(serverTf, glyphCount);
const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
SkTextBlobCacheDiffCanvas cache_diff_canvas(10, 10, SkMatrix::I(), props, &server);
SkPaint paint;
cache_diff_canvas.drawTextBlob(serverBlob.get(), 0, 0, paint);
REPORTER_ASSERT(reporter, discardableManager->handleCount() == 1u);
// Write the strike data and delete all the handles. Re-analyzing the blob should create new
// handles.
std::vector<uint8_t> fontData;
server.writeStrikeData(&fontData);
discardableManager->unlockAndDeleteAll();
cache_diff_canvas.drawTextBlob(serverBlob.get(), 0, 0, paint);
printf("HandleCount: %d\n ", discardableManager->handleCount());
REPORTER_ASSERT(reporter, discardableManager->handleCount() == 2u);
}
DEF_TEST(SkRemoteGlyphCache_StrikePinningClient, reporter) {
sk_sp<DiscardableManager> discardableManager = sk_make_sp<DiscardableManager>();
SkStrikeServer server(discardableManager.get());
SkStrikeClient client(discardableManager);
// Server.
auto serverTf = SkTypeface::MakeFromName("monospace", SkFontStyle());
auto serverTfData = server.serializeTypeface(serverTf.get());
int glyphCount = 10;
auto serverBlob = buildTextBlob(serverTf, glyphCount);
const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
SkTextBlobCacheDiffCanvas cache_diff_canvas(10, 10, SkMatrix::I(), props, &server);
SkPaint paint;
cache_diff_canvas.drawTextBlob(serverBlob.get(), 0, 0, paint);
std::vector<uint8_t> serverStrikeData;
server.writeStrikeData(&serverStrikeData);
// Client.
REPORTER_ASSERT(reporter,
client.readStrikeData(serverStrikeData.data(), serverStrikeData.size()));
auto* clientTf = client.deserializeTypeface(serverTfData->data(), serverTfData->size()).get();
// The cache remains alive until it is pinned in the discardable manager.
SkGraphics::PurgeFontCache();
REPORTER_ASSERT(reporter, !clientTf->unique());
// Once the strike is unpinned and purged, SkStrikeClient should be the only owner of the
// clientTf.
discardableManager->unlockAndDeleteAll();
SkGraphics::PurgeFontCache();
REPORTER_ASSERT(reporter, clientTf->unique());
}
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