commit b4cfc95593faeed3281ec1c72421f00db1c3175d
author Naseer Ahmed <naseer@codeaurora.org> Wed Aug 12 21:12:12 2015 -0400
committer Ed Tam <etam@google.com> Fri Aug 21 16:48:20 2015 -0700
tree 95e96c82116bd67a57c1f9c15db6c72b60a4c29b
parent cfacc80f236685f3c3c9f556cf9fae81fbf8a37a

hwc: Allow mode switch

Calls into qdcm lib to switch the display mode to the given ID.

Change-Id: I5d8f2c238ab0426c7593447b79a826c688622f66

msm8994/libhwcomposer/hwc_qclient.cpp

diff --git a/msm8994/libhwcomposer/hwc_qclient.cpp b/msm8994/libhwcomposer/hwc_qclient.cpp
index 09013c6..1c7c4dc 100644
--- a/msm8994/libhwcomposer/hwc_qclient.cpp
+++ b/msm8994/libhwcomposer/hwc_qclient.cpp
@@ -35,6 +35,7 @@
 #include <hwc_virtual.h>
 #include <overlay.h>
 #include <display_config.h>
+#include <dlfcn.h>
 
 #define QCLIENT_DEBUG 0
 
@@ -338,6 +339,28 @@
     }
 }
 
+static void applyModeById(hwc_context_t* ctx, int32_t modeId) {
+    int (*applyMode)(int, int) = NULL;
+    void *modeHandle = NULL;
+
+    modeHandle = dlopen("libmm-qdcm.so", RTLD_NOW);
+    if (modeHandle) {
+        *(void **)&applyMode = dlsym(modeHandle, "applyModeById");
+        if (applyMode) {
+            int err = applyMode(modeId, HWC_DISPLAY_PRIMARY);
+            if (err)
+                ALOGD("%s: Not able to apply mode: %d", __FUNCTION__, modeId);
+            else
+                ctx->proc->invalidate(ctx->proc);
+        } else {
+            ALOGE("%s: No symbol applyModeById found", __FUNCTION__);
+        }
+        dlclose(modeHandle);
+    } else {
+        ALOGE("%s: Not able to load libmm-qdcm.so", __FUNCTION__);
+    }
+}
+
 status_t QClient::notifyCallback(uint32_t command, const Parcel* inParcel,
         Parcel* outParcel) {
     status_t ret = NO_ERROR;
@@ -398,6 +421,9 @@
         case IQService::TOGGLE_SCREEN_UPDATE:
             toggleScreenUpdate(mHwcContext, inParcel->readInt32());
             break;
+        case IQService::APPLY_MODE_BY_ID:
+            applyModeById(mHwcContext, inParcel->readInt32());
+            break;
         default:
             ret = NO_ERROR;
     }