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-rw-r--r--libs/gui/IGraphicBufferProducer.cpp59
-rw-r--r--libs/gui/Sensor.cpp128
2 files changed, 97 insertions, 90 deletions
diff --git a/libs/gui/IGraphicBufferProducer.cpp b/libs/gui/IGraphicBufferProducer.cpp
index 2e561df..48b2870 100644
--- a/libs/gui/IGraphicBufferProducer.cpp
+++ b/libs/gui/IGraphicBufferProducer.cpp
@@ -270,8 +270,7 @@ IGraphicBufferProducer::QueueBufferInput::QueueBufferInput(const Parcel& parcel)
parcel.read(*this);
}
-size_t IGraphicBufferProducer::QueueBufferInput::getFlattenedSize() const
-{
+size_t IGraphicBufferProducer::QueueBufferInput::getFlattenedSize() const {
return sizeof(timestamp)
+ sizeof(crop)
+ sizeof(scalingMode)
@@ -280,38 +279,46 @@ size_t IGraphicBufferProducer::QueueBufferInput::getFlattenedSize() const
+ fence->getFlattenedSize();
}
-size_t IGraphicBufferProducer::QueueBufferInput::getFdCount() const
-{
+size_t IGraphicBufferProducer::QueueBufferInput::getFdCount() const {
return fence->getFdCount();
}
-status_t IGraphicBufferProducer::QueueBufferInput::flatten(void* buffer, size_t size,
- int fds[], size_t count) const
+status_t IGraphicBufferProducer::QueueBufferInput::flatten(
+ void*& buffer, size_t& size, int*& fds, size_t& count) const
{
- status_t err = NO_ERROR;
- char* p = (char*)buffer;
- memcpy(p, &timestamp, sizeof(timestamp)); p += sizeof(timestamp);
- memcpy(p, &crop, sizeof(crop)); p += sizeof(crop);
- memcpy(p, &scalingMode, sizeof(scalingMode)); p += sizeof(scalingMode);
- memcpy(p, &transform, sizeof(transform)); p += sizeof(transform);
- memcpy(p, &async, sizeof(async)); p += sizeof(async);
- err = fence->flatten(p, size - (p - (char*)buffer), fds, count);
- return err;
+ if (size < getFlattenedSize()) {
+ return NO_MEMORY;
+ }
+ FlattenableUtils::write(buffer, size, timestamp);
+ FlattenableUtils::write(buffer, size, crop);
+ FlattenableUtils::write(buffer, size, scalingMode);
+ FlattenableUtils::write(buffer, size, transform);
+ FlattenableUtils::write(buffer, size, async);
+ return fence->flatten(buffer, size, fds, count);
}
-status_t IGraphicBufferProducer::QueueBufferInput::unflatten(void const* buffer,
- size_t size, int fds[], size_t count)
+status_t IGraphicBufferProducer::QueueBufferInput::unflatten(
+ void const*& buffer, size_t& size, int const*& fds, size_t& count)
{
- status_t err = NO_ERROR;
- const char* p = (const char*)buffer;
- memcpy(&timestamp, p, sizeof(timestamp)); p += sizeof(timestamp);
- memcpy(&crop, p, sizeof(crop)); p += sizeof(crop);
- memcpy(&scalingMode, p, sizeof(scalingMode)); p += sizeof(scalingMode);
- memcpy(&transform, p, sizeof(transform)); p += sizeof(transform);
- memcpy(&async, p, sizeof(async)); p += sizeof(async);
+ size_t minNeeded =
+ sizeof(timestamp)
+ + sizeof(crop)
+ + sizeof(scalingMode)
+ + sizeof(transform)
+ + sizeof(async);
+
+ if (size < minNeeded) {
+ return NO_MEMORY;
+ }
+
+ FlattenableUtils::read(buffer, size, timestamp);
+ FlattenableUtils::read(buffer, size, crop);
+ FlattenableUtils::read(buffer, size, scalingMode);
+ FlattenableUtils::read(buffer, size, transform);
+ FlattenableUtils::read(buffer, size, async);
+
fence = new Fence();
- err = fence->unflatten(p, size - (p - (const char*)buffer), fds, count);
- return err;
+ return fence->unflatten(buffer, size, fds, count);
}
}; // namespace android
diff --git a/libs/gui/Sensor.cpp b/libs/gui/Sensor.cpp
index c52a88f..d84c370 100644
--- a/libs/gui/Sensor.cpp
+++ b/libs/gui/Sensor.cpp
@@ -98,85 +98,85 @@ int32_t Sensor::getVersion() const {
return mVersion;
}
-size_t Sensor::getSize() const
+size_t Sensor::getFlattenedSize() const
{
- return sizeof(int32_t) + ((mName.length() + 3) & ~3) +
- sizeof(int32_t) + ((mVendor.length() + 3) & ~3) +
+ size_t fixedSize =
sizeof(int32_t) * 3 +
sizeof(float) * 4 +
sizeof(int32_t);
-}
-static inline
-size_t write(void* buffer, size_t offset, const String8& value) {
- memcpy(static_cast<char*>(buffer) + offset, value.string(), value.length());
- return (value.length() + 3) & ~3;
-}
+ size_t variableSize =
+ sizeof(int32_t) + FlattenableUtils::align<4>(mName.length()) +
+ sizeof(int32_t) + FlattenableUtils::align<4>(mVendor.length());
-static inline
-size_t write(void* buffer, size_t offset, float value) {
- *reinterpret_cast<float*>(static_cast<char*>(buffer) + offset) = value;
- return sizeof(float);
+ return fixedSize + variableSize;
}
-static inline
-size_t write(void* buffer, size_t offset, int32_t value) {
- *reinterpret_cast<int32_t*>(static_cast<char*>(buffer) + offset) = value;
- return sizeof(int32_t);
-}
+status_t Sensor::flatten(void* buffer, size_t size) const {
+ if (size < getFlattenedSize()) {
+ return NO_MEMORY;
+ }
-status_t Sensor::flatten(void* buffer) const
-{
- size_t offset = 0;
- offset += write(buffer, offset, int32_t(mName.length()));
- offset += write(buffer, offset, mName);
- offset += write(buffer, offset, int32_t(mVendor.length()));
- offset += write(buffer, offset, mVendor);
- offset += write(buffer, offset, mVersion);
- offset += write(buffer, offset, mHandle);
- offset += write(buffer, offset, mType);
- offset += write(buffer, offset, mMinValue);
- offset += write(buffer, offset, mMaxValue);
- offset += write(buffer, offset, mResolution);
- offset += write(buffer, offset, mPower);
- offset += write(buffer, offset, mMinDelay);
+ FlattenableUtils::write(buffer, size, mName.length());
+ memcpy(static_cast<char*>(buffer), mName.string(), mName.length());
+ FlattenableUtils::advance(buffer, size, FlattenableUtils::align<4>(mName.length()));
+
+ FlattenableUtils::write(buffer, size, mVendor.length());
+ memcpy(static_cast<char*>(buffer), mVendor.string(), mVendor.length());
+ FlattenableUtils::advance(buffer, size, FlattenableUtils::align<4>(mVendor.length()));
+
+ FlattenableUtils::write(buffer, size, mVersion);
+ FlattenableUtils::write(buffer, size, mHandle);
+ FlattenableUtils::write(buffer, size, mType);
+ FlattenableUtils::write(buffer, size, mMinValue);
+ FlattenableUtils::write(buffer, size, mMaxValue);
+ FlattenableUtils::write(buffer, size, mResolution);
+ FlattenableUtils::write(buffer, size, mPower);
+ FlattenableUtils::write(buffer, size, mMinDelay);
return NO_ERROR;
}
-static inline
-size_t read(void const* buffer, size_t offset, String8* value, int32_t len) {
- value->setTo(static_cast<char const*>(buffer) + offset, len);
- return (len + 3) & ~3;
-}
+status_t Sensor::unflatten(void const* buffer, size_t size) {
+ size_t len;
-static inline
-size_t read(void const* buffer, size_t offset, float* value) {
- *value = *reinterpret_cast<float const*>(static_cast<char const*>(buffer) + offset);
- return sizeof(float);
-}
+ if (size < sizeof(size_t)) {
+ return NO_MEMORY;
+ }
+ FlattenableUtils::read(buffer, size, len);
+ if (size < len) {
+ return NO_MEMORY;
+ }
+ mName.setTo(static_cast<char const*>(buffer), len);
+ FlattenableUtils::advance(buffer, size, FlattenableUtils::align<4>(len));
-static inline
-size_t read(void const* buffer, size_t offset, int32_t* value) {
- *value = *reinterpret_cast<int32_t const*>(static_cast<char const*>(buffer) + offset);
- return sizeof(int32_t);
-}
-status_t Sensor::unflatten(void const* buffer, size_t size)
-{
- int32_t len;
- size_t offset = 0;
- offset += read(buffer, offset, &len);
- offset += read(buffer, offset, &mName, len);
- offset += read(buffer, offset, &len);
- offset += read(buffer, offset, &mVendor, len);
- offset += read(buffer, offset, &mVersion);
- offset += read(buffer, offset, &mHandle);
- offset += read(buffer, offset, &mType);
- offset += read(buffer, offset, &mMinValue);
- offset += read(buffer, offset, &mMaxValue);
- offset += read(buffer, offset, &mResolution);
- offset += read(buffer, offset, &mPower);
- offset += read(buffer, offset, &mMinDelay);
+ if (size < sizeof(size_t)) {
+ return NO_MEMORY;
+ }
+ FlattenableUtils::read(buffer, size, len);
+ if (size < len) {
+ return NO_MEMORY;
+ }
+ mVendor.setTo(static_cast<char const*>(buffer), len);
+ FlattenableUtils::advance(buffer, size, FlattenableUtils::align<4>(len));
+
+ size_t fixedSize =
+ sizeof(int32_t) * 3 +
+ sizeof(float) * 4 +
+ sizeof(int32_t);
+
+ if (size < fixedSize) {
+ return NO_MEMORY;
+ }
+
+ FlattenableUtils::read(buffer, size, mVersion);
+ FlattenableUtils::read(buffer, size, mHandle);
+ FlattenableUtils::read(buffer, size, mType);
+ FlattenableUtils::read(buffer, size, mMinValue);
+ FlattenableUtils::read(buffer, size, mMaxValue);
+ FlattenableUtils::read(buffer, size, mResolution);
+ FlattenableUtils::read(buffer, size, mPower);
+ FlattenableUtils::read(buffer, size, mMinDelay);
return NO_ERROR;
}
generated by cgit v1.1 at 2025-09-19 11:07:03 +0000