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configstore: add new configuration item

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This change adds to configstore@1.0 HAL a new configuration item
for surfaceflinger; useTripleFramebuffer()

In the default implementation, useTripleFramebuffer() will return true
only if the build flag NUM_FRAMEBUFFER_SURFACE_BUFFERS is defined as 3.

Bug: 34723491
Test: build & run. log message "SurfaceFlinger FrameBuffer: ?"
      should be seen.

Change-Id: Iac97e25cd69717c73a135f6b2a44538124544987
This commit is contained in:
Jaesoo Lee
2017-01-23 19:09:02 +09:00
parent f185ec6f0a
commit d643fc08c5
4 changed files with 15 additions and 0 deletions
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1
configstore/1.0/ISurfaceFlingerConfigs.hal
View File

@@ -17,4 +17,5 @@ package android.hardware.configstore@1.0;
interface ISurfaceFlingerConfigs {
vsyncEventPhaseOffsetNs() generates (OptionalInt64 value);
useTripleFramebuffer() generates (OptionalBool value);
};

9
configstore/1.0/default/SurfaceFlingerConfigs.cpp
View File

@@ -19,6 +19,15 @@ Return<void> SurfaceFlingerConfigs::vsyncEventPhaseOffsetNs(vsyncEventPhaseOffse
return Void();
}
Return<void> SurfaceFlingerConfigs::useTripleFramebuffer(useTripleFramebuffer_cb _hidl_cb) {
bool value = false;
#ifdef USE_TRIPLE_FRAMEBUFFER
value = true;
#endif
_hidl_cb({true, value});
LOG(INFO) << "SurfaceFlinger FrameBuffer: " << (value ? "triple" : "double");
return Void();
}
// Methods from ::android::hidl::base::V1_0::IBase follow.

1
configstore/1.0/default/SurfaceFlingerConfigs.h
View File

@@ -25,6 +25,7 @@ using ::android::sp;
struct SurfaceFlingerConfigs : public ISurfaceFlingerConfigs {
// Methods from ::android::hardware::configstore::V1_0::ISurfaceFlingerConfigs follow.
Return<void> vsyncEventPhaseOffsetNs(vsyncEventPhaseOffsetNs_cb _hidl_cb) override;
Return<void> useTripleFramebuffer(useTripleFramebuffer_cb _hidl_cb) override;
// Methods from ::android::hidl::base::V1_0::IBase follow.

4
configstore/1.0/default/surfaceflinger.mk
View File

@@ -4,3 +4,7 @@ LOCAL_SRC_FILES += SurfaceFlingerConfigs.cpp
ifneq ($(VSYNC_EVENT_PHASE_OFFSET_NS),)
LOCAL_CFLAGS += -DVSYNC_EVENT_PHASE_OFFSET_NS=$(VSYNC_EVENT_PHASE_OFFSET_NS)
endif
ifeq ($(NUM_FRAMEBUFFER_SURFACE_BUFFERS),3)
LOCAL_CFLAGS += -DUSE_TRIPLE_FRAMEBUFFER
endif