drm_hwcomposer: always use PlanStageGreedy

Only PlatformHisi has custom planner. It doesn't makes much sense since
for HISI all composition is done on client side and planner should never
get buffers with usage flag other than GRALLOC_USAGE_HW_FB.

Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
Change-Id: I3db3f96165f4c3aacb8bc43c8ee3ebc877163e1b
diff --git a/platform/platformdrmgeneric.cpp b/platform/platformdrmgeneric.cpp
index d903031..deac477 100644
--- a/platform/platformdrmgeneric.cpp
+++ b/platform/platformdrmgeneric.cpp
@@ -354,13 +354,11 @@
   return true;
 }
 
-#ifdef USE_DRM_GENERIC_IMPORTER
 std::unique_ptr<Planner> Planner::CreateInstance(DrmDevice *) {
   std::unique_ptr<Planner> planner(new Planner);
   planner->AddStage<PlanStageGreedy>();
   return planner;
 }
-#endif
 
 int DrmGenericImporter::ImportHandle(uint32_t gem_handle) {
   gem_refcount_[gem_handle]++;
diff --git a/platform/platformhisi.cpp b/platform/platformhisi.cpp
index 8c10e34..67793db 100644
--- a/platform/platformhisi.cpp
+++ b/platform/platformhisi.cpp
@@ -152,42 +152,4 @@
   return 0;
 }
 
-class PlanStageHiSi : public Planner::PlanStage {
- public:
-  int ProvisionPlanes(std::vector<DrmCompositionPlane> *composition,
-                      std::map<size_t, DrmHwcLayer *> &layers, DrmCrtc *crtc,
-                      std::vector<DrmPlane *> *planes) {
-    int layers_added = 0;
-    // Fill up as many DRM planes as we can with buffers that have HW_FB usage.
-    // Buffers without HW_FB should have been filtered out with
-    // CanImportBuffer(), if we meet one here, just skip it.
-    for (auto i = layers.begin(); i != layers.end(); i = layers.erase(i)) {
-      if (!(i->second->gralloc_buffer_usage & GRALLOC_USAGE_HW_FB))
-        continue;
-
-      int ret = Emplace(composition, planes, DrmCompositionPlane::Type::kLayer,
-                        crtc, std::make_pair(i->first, i->second));
-      layers_added++;
-      // We don't have any planes left
-      if (ret == -ENOENT)
-        break;
-      else if (ret) {
-        ALOGE("Failed to emplace layer %zu, dropping it", i->first);
-        return ret;
-      }
-    }
-    // If we didn't emplace anything, return an error to ensure we force client
-    // compositing.
-    if (!layers_added)
-      return -EINVAL;
-
-    return 0;
-  }
-};
-
-std::unique_ptr<Planner> Planner::CreateInstance(DrmDevice *) {
-  std::unique_ptr<Planner> planner(new Planner);
-  planner->AddStage<PlanStageHiSi>();
-  return planner;
-}
 }  // namespace android
diff --git a/platform/platformimagination.cpp b/platform/platformimagination.cpp
index 83cebf3..7001d64 100644
--- a/platform/platformimagination.cpp
+++ b/platform/platformimagination.cpp
@@ -60,9 +60,4 @@
   return 0;
 }
 
-std::unique_ptr<Planner> Planner::CreateInstance(DrmDevice *) {
-  std::unique_ptr<Planner> planner(new Planner);
-  planner->AddStage<PlanStageGreedy>();
-  return planner;
-}
 }  // namespace android
diff --git a/platform/platformmeson.cpp b/platform/platformmeson.cpp
index ecace29..278eac5 100644
--- a/platform/platformmeson.cpp
+++ b/platform/platformmeson.cpp
@@ -102,9 +102,4 @@
   return 0;
 }
 
-std::unique_ptr<Planner> Planner::CreateInstance(DrmDevice *) {
-  std::unique_ptr<Planner> planner(new Planner);
-  planner->AddStage<PlanStageGreedy>();
-  return planner;
-}
 }  // namespace android
diff --git a/platform/platformminigbm.cpp b/platform/platformminigbm.cpp
index 39decab..4360b0a 100644
--- a/platform/platformminigbm.cpp
+++ b/platform/platformminigbm.cpp
@@ -60,10 +60,4 @@
   return 0;
 }
 
-std::unique_ptr<Planner> Planner::CreateInstance(DrmDevice *) {
-  std::unique_ptr<Planner> planner(new Planner);
-  planner->AddStage<PlanStageGreedy>();
-  return planner;
-}
-
 }  // namespace android