Don't store empty objects on SF traces
Proto3 doesn't store default values for object, however, it stored the
object start-end tags if an empty object was created.
Do not create objects when they are empty
Test: Flash a device. Record SF trace. Open them in the new winscope
version with "display defaults" unchecked. Check if there are no empty
objects
Change-Id: I3f48047e43e9c62c572d5b83e63a0f96527ef146
diff --git a/services/surfaceflinger/LayerProtoHelper.cpp b/services/surfaceflinger/LayerProtoHelper.cpp
index 3289e8f..02383a6 100644
--- a/services/surfaceflinger/LayerProtoHelper.cpp
+++ b/services/surfaceflinger/LayerProtoHelper.cpp
@@ -18,53 +18,106 @@
namespace android {
namespace surfaceflinger {
-void LayerProtoHelper::writeToProto(const Region& region, RegionProto* regionProto) {
+
+void LayerProtoHelper::writePositionToProto(const float x, const float y,
+ std::function<PositionProto*()> getPositionProto) {
+ if (x != 0 || y != 0) {
+ // Use a lambda do avoid writing the object header when the object is empty
+ PositionProto* position = getPositionProto();
+ position->set_x(x);
+ position->set_y(y);
+ }
+}
+
+void LayerProtoHelper::writeSizeToProto(const uint32_t w, const uint32_t h,
+ std::function<SizeProto*()> getSizeProto) {
+ if (w != 0 || h != 0) {
+ // Use a lambda do avoid writing the object header when the object is empty
+ SizeProto* size = getSizeProto();
+ size->set_w(w);
+ size->set_h(h);
+ }
+}
+
+void LayerProtoHelper::writeToProto(const Region& region,
+ std::function<RegionProto*()> getRegionProto) {
+ if (region.isEmpty()) {
+ return;
+ }
+
Region::const_iterator head = region.begin();
Region::const_iterator const tail = region.end();
+ // Use a lambda do avoid writing the object header when the object is empty
+ RegionProto* regionProto = getRegionProto();
uint64_t address = reinterpret_cast<uint64_t>(®ion);
regionProto->set_id(address);
while (head != tail) {
- RectProto* rectProto = regionProto->add_rect();
- writeToProto(*head, rectProto);
+ std::function<RectProto*()> getProtoRect = [&]() { return regionProto->add_rect(); };
+ writeToProto(*head, getProtoRect);
head++;
}
}
-void LayerProtoHelper::writeToProto(const Rect& rect, RectProto* rectProto) {
- rectProto->set_left(rect.left);
- rectProto->set_top(rect.top);
- rectProto->set_bottom(rect.bottom);
- rectProto->set_right(rect.right);
+void LayerProtoHelper::writeToProto(const Rect& rect, std::function<RectProto*()> getRectProto) {
+ if (rect.left != 0 || rect.right != 0 || rect.top != 0 || rect.bottom != 0) {
+ // Use a lambda do avoid writing the object header when the object is empty
+ RectProto* rectProto = getRectProto();
+ rectProto->set_left(rect.left);
+ rectProto->set_top(rect.top);
+ rectProto->set_bottom(rect.bottom);
+ rectProto->set_right(rect.right);
+ }
}
-void LayerProtoHelper::writeToProto(const FloatRect& rect, FloatRectProto* rectProto) {
- rectProto->set_left(rect.left);
- rectProto->set_top(rect.top);
- rectProto->set_bottom(rect.bottom);
- rectProto->set_right(rect.right);
+void LayerProtoHelper::writeToProto(const FloatRect& rect,
+ std::function<FloatRectProto*()> getFloatRectProto) {
+ if (rect.left != 0 || rect.right != 0 || rect.top != 0 || rect.bottom != 0) {
+ // Use a lambda do avoid writing the object header when the object is empty
+ FloatRectProto* rectProto = getFloatRectProto();
+ rectProto->set_left(rect.left);
+ rectProto->set_top(rect.top);
+ rectProto->set_bottom(rect.bottom);
+ rectProto->set_right(rect.right);
+ }
}
-void LayerProtoHelper::writeToProto(const half4 color, ColorProto* colorProto) {
- colorProto->set_r(color.r);
- colorProto->set_g(color.g);
- colorProto->set_b(color.b);
- colorProto->set_a(color.a);
+void LayerProtoHelper::writeToProto(const half4 color, std::function<ColorProto*()> getColorProto) {
+ if (color.r != 0 || color.g != 0 || color.b != 0 || color.a != 0) {
+ // Use a lambda do avoid writing the object header when the object is empty
+ ColorProto* colorProto = getColorProto();
+ colorProto->set_r(color.r);
+ colorProto->set_g(color.g);
+ colorProto->set_b(color.b);
+ colorProto->set_a(color.a);
+ }
}
void LayerProtoHelper::writeToProto(const ui::Transform& transform,
TransformProto* transformProto) {
- transformProto->set_dsdx(transform[0][0]);
- transformProto->set_dtdx(transform[0][1]);
- transformProto->set_dsdy(transform[1][0]);
- transformProto->set_dtdy(transform[1][1]);
+ const uint32_t type = transform.getType();
+ transformProto->set_type(type);
+
+ if (type &
+ (ui::Transform::SCALE | ui::Transform::ROTATE | ui::Transform::TRANSLATE |
+ ui::Transform::UNKNOWN)) {
+ transformProto->set_dsdx(transform[0][0]);
+ transformProto->set_dtdx(transform[0][1]);
+ transformProto->set_dsdy(transform[1][0]);
+ transformProto->set_dtdy(transform[1][1]);
+ }
}
void LayerProtoHelper::writeToProto(const sp<GraphicBuffer>& buffer,
- ActiveBufferProto* activeBufferProto) {
- activeBufferProto->set_width(buffer->getWidth());
- activeBufferProto->set_height(buffer->getHeight());
- activeBufferProto->set_stride(buffer->getStride());
- activeBufferProto->set_format(buffer->format);
+ std::function<ActiveBufferProto*()> getActiveBufferProto) {
+ if (buffer->getWidth() != 0 || buffer->getHeight() != 0 || buffer->getStride() != 0 ||
+ buffer->format != 0) {
+ // Use a lambda do avoid writing the object header when the object is empty
+ ActiveBufferProto* activeBufferProto = getActiveBufferProto();
+ activeBufferProto->set_width(buffer->getWidth());
+ activeBufferProto->set_height(buffer->getHeight());
+ activeBufferProto->set_stride(buffer->getStride());
+ activeBufferProto->set_format(buffer->format);
+ }
}
} // namespace surfaceflinger