| /* |
| * Copyright (C) 2018 Metrological Group B.V. |
| * Copyright (C) 2018 Igalia S.L. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "NicosiaBackingStoreTextureMapperImpl.h" |
| |
| #if USE(TEXTURE_MAPPER) |
| |
| namespace Nicosia { |
| |
| auto BackingStoreTextureMapperImpl::createFactory() -> Factory |
| { |
| return Factory( |
| [](BackingStore&) { |
| return makeUnique<BackingStoreTextureMapperImpl>(); |
| }); |
| } |
| |
| BackingStoreTextureMapperImpl::BackingStoreTextureMapperImpl() = default; |
| BackingStoreTextureMapperImpl::~BackingStoreTextureMapperImpl() = default; |
| |
| void BackingStoreTextureMapperImpl::tiledBackingStoreHasPendingTileCreation() |
| { |
| m_layerState.hasPendingTileCreation = true; |
| } |
| |
| void BackingStoreTextureMapperImpl::createTile(uint32_t tileID, float scale) |
| { |
| ASSERT(m_layerState.isFlushing); |
| auto& update = m_layerState.update; |
| |
| // Assert no tile with this ID has been registered yet. |
| #if ASSERT_ENABLED |
| auto matchesTile = [tileID](auto& tile) { return tile.tileID == tileID; }; |
| #endif |
| ASSERT(std::none_of(update.tilesToCreate.begin(), update.tilesToCreate.end(), matchesTile)); |
| ASSERT(std::none_of(update.tilesToUpdate.begin(), update.tilesToUpdate.end(), matchesTile)); |
| ASSERT(std::none_of(update.tilesToRemove.begin(), update.tilesToRemove.end(), matchesTile)); |
| |
| update.tilesToCreate.append({ tileID, scale }); |
| } |
| |
| void BackingStoreTextureMapperImpl::updateTile(uint32_t tileID, const WebCore::SurfaceUpdateInfo& updateInfo, const WebCore::IntRect& tileRect) |
| { |
| ASSERT(m_layerState.isFlushing); |
| auto& update = m_layerState.update; |
| |
| // Assert no tile with this ID has been registered for removal yet. It might have |
| // already been created in a previous update, so it makes no sense to check tilesToCreate. |
| ASSERT(std::none_of(update.tilesToRemove.begin(), update.tilesToRemove.end(), |
| [tileID](auto& tile) { return tile.tileID == tileID; })); |
| |
| update.tilesToUpdate.append({ tileID, tileRect, updateInfo }); |
| } |
| |
| void BackingStoreTextureMapperImpl::removeTile(uint32_t tileID) |
| { |
| ASSERT(m_layerState.isFlushing || m_layerState.isPurging); |
| auto& update = m_layerState.update; |
| |
| // Remove any creations or updates registered for this tile ID. |
| auto matchesTile = [tileID](auto& tile) { return tile.tileID == tileID; }; |
| update.tilesToCreate.removeAllMatching(matchesTile); |
| update.tilesToUpdate.removeAllMatching(matchesTile); |
| |
| // Assert no tile with this ID has been registered for removal yet. |
| ASSERT(std::none_of(update.tilesToRemove.begin(), update.tilesToRemove.end(), matchesTile)); |
| |
| update.tilesToRemove.append(TileUpdate::RemovalData { tileID }); |
| } |
| |
| void BackingStoreTextureMapperImpl::flushUpdate() |
| { |
| ASSERT(!m_layerState.isFlushing); |
| m_layerState.hasPendingTileCreation = false; |
| |
| // Incrementally store updates as they are being flushed from the layer-side. |
| { |
| LockHolder locker(m_update.lock); |
| m_update.pending.tilesToCreate.appendVector(m_layerState.update.tilesToCreate); |
| m_update.pending.tilesToUpdate.appendVector(m_layerState.update.tilesToUpdate); |
| m_update.pending.tilesToRemove.appendVector(m_layerState.update.tilesToRemove); |
| } |
| |
| m_layerState.update = { }; |
| } |
| |
| auto BackingStoreTextureMapperImpl::takeUpdate() -> TileUpdate |
| { |
| LockHolder locker(m_update.lock); |
| return WTFMove(m_update.pending); |
| } |
| |
| } // namespace Nicosia |
| |
| #endif // USE(TEXTURE_MAPPER) |