display: Add BufferMirrorMode support for External
- In Buffer mirror mode, the output on the external should be rotated
based on the primary orientation.
- this is used for the side sync feature.
- buffermirrormode has higher precedence over external orientation
- Add binder interface to enable/disable buffermirror mode
Change-Id: Ibea0af9627d69b4d42453adc868b113d82613437
diff --git a/libhwcomposer/hwc_utils.cpp b/libhwcomposer/hwc_utils.cpp
index e013876..fa3c15f 100644
--- a/libhwcomposer/hwc_utils.cpp
+++ b/libhwcomposer/hwc_utils.cpp
@@ -196,6 +196,8 @@
ctx->mPrevDestVideo.right = ctx->mPrevDestVideo.bottom = 0;
ctx->mPrevTransformVideo = 0;
+ ctx->mBufferMirrorMode = false;
+
ALOGI("Initializing Qualcomm Hardware Composer");
ALOGI("MDP version: %d", ctx->mMDP.version);
}
@@ -297,7 +299,11 @@
float fbHeight = ctx->dpyAttr[dpy].yres;
// Since external is rotated 90, need to swap width/height
- if(ctx->mExtOrientation & HWC_TRANSFORM_ROT_90)
+ int extOrient = ctx->mExtOrientation;
+ if(ctx->mBufferMirrorMode)
+ extOrient = getMirrorModeOrientation(ctx);
+
+ if(extOrient & HWC_TRANSFORM_ROT_90)
swap(fbWidth, fbHeight);
float asX = 0;
@@ -496,7 +502,10 @@
hwc_rect_t& sourceCrop,
hwc_rect_t& displayFrame) {
// Swap width and height when there is a 90deg transform
- if(ctx->mExtOrientation & HWC_TRANSFORM_ROT_90) {
+ int extOrient = ctx->mExtOrientation;
+ if(ctx->mBufferMirrorMode)
+ extOrient = getMirrorModeOrientation(ctx);
+ if(extOrient & HWC_TRANSFORM_ROT_90) {
int dstWidth = ctx->dpyAttr[dpy].xres;
int dstHeight = ctx->dpyAttr[dpy].yres;;
int srcWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
@@ -538,7 +547,26 @@
displayFrame.right *= wRatio;
displayFrame.bottom *= hRatio;
}
+}
+/* Returns the orientation which needs to be set on External for
+ * SideSync/Buffer Mirrormode
+ */
+int getMirrorModeOrientation(hwc_context_t *ctx) {
+ int extOrientation = 0;
+ int deviceOrientation = ctx->deviceOrientation;
+ if(!isPrimaryPortrait(ctx))
+ deviceOrientation = (deviceOrientation + 1) % 4;
+ if (deviceOrientation == 0)
+ extOrientation = HWC_TRANSFORM_ROT_270;
+ else if (deviceOrientation == 1)//90
+ extOrientation = 0;
+ else if (deviceOrientation == 2)//180
+ extOrientation = HWC_TRANSFORM_ROT_90;
+ else if (deviceOrientation == 3)//270
+ extOrientation = HWC_TRANSFORM_FLIP_V | HWC_TRANSFORM_FLIP_H;
+
+ return extOrientation;
}
bool needsScaling(hwc_context_t* ctx, hwc_layer_1_t const* layer,
@@ -663,9 +691,10 @@
ctx->mExtOrientation = atoi(value); */
// Assuming the orientation value is in terms of HAL_TRANSFORM,
// This needs mapping to HAL, if its in different convention
- if(ctx->mExtOrientation) {
- ALOGD_IF(HWC_UTILS_DEBUG, "%s: ext orientation = %d",
- __FUNCTION__, ctx->mExtOrientation);
+ if(ctx->mExtOrientation || ctx->mBufferMirrorMode) {
+ ALOGD_IF(HWC_UTILS_DEBUG, "%s: ext orientation = %d"
+ "BufferMirrorMode = %d", __FUNCTION__,
+ ctx->mExtOrientation, ctx->mBufferMirrorMode);
if(ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
ctx->isPaddingRound = true;
}
@@ -1165,12 +1194,15 @@
}
}
if(dpy) {
+ int extOrient = ctx->mExtOrientation;
+ if(ctx->mBufferMirrorMode)
+ extOrient = getMirrorModeOrientation(ctx);
// Just need to set the position to portrait as the transformation
// will already be set to required orientation on TV
- if(ctx->mExtOrientation || ctx->dpyAttr[dpy].mDownScaleMode) {
- getAspectRatioPosition(ctx, dpy, ctx->mExtOrientation, dst, dst);
- if(ctx->mExtOrientation) {
- transform = ctx->mExtOrientation;
+ if(extOrient || ctx->dpyAttr[dpy].mDownScaleMode) {
+ getAspectRatioPosition(ctx, dpy, extOrient, dst, dst);
+ if(extOrient) {
+ transform = extOrient;
orient = static_cast<eTransform>(transform);
}
}