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// Copyright (C) 2018 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "VulkanStreamGuest.h"
namespace gfxstream {
namespace vk {
VulkanStreamGuest::VulkanStreamGuest(gfxstream::guest::IOStream* stream) : mStream(stream) {
unsetHandleMapping();
mFeatureBits = ResourceTracker::get()->getStreamFeatures();
}
VulkanStreamGuest::~VulkanStreamGuest() = default;
bool VulkanStreamGuest::valid() { return true; }
void VulkanStreamGuest::alloc(void** ptrAddr, size_t bytes) {
if (!bytes) {
*ptrAddr = nullptr;
return;
}
*ptrAddr = mPool.alloc(bytes);
}
void VulkanStreamGuest::loadStringInPlace(char** forOutput) {
size_t len = getBe32();
alloc((void**)forOutput, len + 1);
memset(*forOutput, 0x0, len + 1);
if (len > 0) read(*forOutput, len);
}
void VulkanStreamGuest::loadStringArrayInPlace(char*** forOutput) {
size_t count = getBe32();
if (!count) {
*forOutput = nullptr;
return;
}
alloc((void**)forOutput, count * sizeof(char*));
char** stringsForOutput = *forOutput;
for (size_t i = 0; i < count; i++) {
loadStringInPlace(stringsForOutput + i);
}
}
void VulkanStreamGuest::loadStringInPlaceWithStreamPtr(char** forOutput, uint8_t** streamPtr) {
uint32_t len;
memcpy(&len, *streamPtr, sizeof(uint32_t));
*streamPtr += sizeof(uint32_t);
gfxstream::guest::Stream::fromBe32((uint8_t*)&len);
alloc((void**)forOutput, len + 1);
memset(*forOutput, 0x0, len + 1);
if (len > 0) {
memcpy(*forOutput, *streamPtr, len);
*streamPtr += len;
}
}
void VulkanStreamGuest::loadStringArrayInPlaceWithStreamPtr(char*** forOutput,
uint8_t** streamPtr) {
uint32_t count;
memcpy(&count, *streamPtr, sizeof(uint32_t));
*streamPtr += sizeof(uint32_t);
gfxstream::guest::Stream::fromBe32((uint8_t*)&count);
if (!count) {
*forOutput = nullptr;
return;
}
alloc((void**)forOutput, count * sizeof(char*));
char** stringsForOutput = *forOutput;
for (size_t i = 0; i < count; i++) {
loadStringInPlaceWithStreamPtr(stringsForOutput + i, streamPtr);
}
}
ssize_t VulkanStreamGuest::read(void* buffer, size_t size) {
if (!mStream->readback(buffer, size)) {
ALOGE("FATAL: Could not read back %zu bytes", size);
abort();
}
return size;
}
ssize_t VulkanStreamGuest::write(const void* buffer, size_t size) {
uint8_t* streamBuf = (uint8_t*)mStream->alloc(size);
memcpy(streamBuf, buffer, size);
return size;
}
void VulkanStreamGuest::writeLarge(const void* buffer, size_t size) {
mStream->writeFullyAsync(buffer, size);
}
void VulkanStreamGuest::clearPool() { mPool.freeAll(); }
void VulkanStreamGuest::setHandleMapping(VulkanHandleMapping* mapping) {
mCurrentHandleMapping = mapping;
}
void VulkanStreamGuest::unsetHandleMapping() { mCurrentHandleMapping = &mDefaultHandleMapping; }
VulkanHandleMapping* VulkanStreamGuest::handleMapping() const { return mCurrentHandleMapping; }
void VulkanStreamGuest::flush() {
AEMU_SCOPED_TRACE("VulkanStreamGuest device write");
mStream->flush();
}
uint32_t VulkanStreamGuest::getFeatureBits() const { return mFeatureBits; }
void VulkanStreamGuest::incStreamRef() { mStream->incRef(); }
bool VulkanStreamGuest::decStreamRef() { return mStream->decRef(); }
uint8_t* VulkanStreamGuest::reserve(size_t size) { return (uint8_t*)mStream->alloc(size); }
VulkanCountingStream::VulkanCountingStream() : VulkanStreamGuest(nullptr) {}
VulkanCountingStream::~VulkanCountingStream() = default;
ssize_t VulkanCountingStream::read(void*, size_t size) {
m_read += size;
return size;
}
ssize_t VulkanCountingStream::write(const void*, size_t size) {
m_written += size;
return size;
}
void VulkanCountingStream::rewind() {
m_written = 0;
m_read = 0;
}
} // namespace vk
} // namespace gfxstream
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