hwc: Extend partial frame update for split displays
Extends partial frame update support for split displays by calculating
changing region(ROI) independently for each half of the screen. In case of
only one half updating, display driver shuts down the DSI/MDP mixer control
of the non updating half.
Maintains two ROI's for each display. In case of Non-split
displays, only left ROI is updated.
Change-Id: I8a67fe40aac665a48b6f8a46beffb9f8027851b2
diff --git a/libhwcomposer/hwc_mdpcomp.h b/libhwcomposer/hwc_mdpcomp.h
index 8186fff..d974875 100644
--- a/libhwcomposer/hwc_mdpcomp.h
+++ b/libhwcomposer/hwc_mdpcomp.h
@@ -142,6 +142,15 @@
/* configures 4kx2k yuv layer*/
virtual int configure4k2kYuv(hwc_context_t *ctx, hwc_layer_1_t *layer,
PipeLayerPair& PipeLayerPair) = 0;
+ /* generates ROI based on the modified area of the frame */
+ virtual void generateROI(hwc_context_t *ctx,
+ hwc_display_contents_1_t* list) = 0;
+ /* validates the ROI generated for fallback conditions */
+ virtual bool validateAndApplyROI(hwc_context_t *ctx,
+ hwc_display_contents_1_t* list) = 0;
+ /* Trims fbRect calculated against ROI generated */
+ virtual void trimAgainstROI(hwc_context_t *ctx, hwc_rect_t& fbRect) = 0;
+
/* set/reset flags for MDPComp */
void setMDPCompLayerFlags(hwc_context_t *ctx,
hwc_display_contents_1_t* list);
@@ -173,11 +182,6 @@
/* checks if MDP/MDSS can process current list w.r.to HW limitations
* All peculiar HW limitations should go here */
bool hwLimitationsCheck(hwc_context_t* ctx, hwc_display_contents_1_t* list);
- /* generates ROI based on the modified area of the frame */
- void generateROI(hwc_context_t *ctx, hwc_display_contents_1_t* list);
- bool validateAndApplyROI(hwc_context_t *ctx, hwc_display_contents_1_t* list,
- hwc_rect_t roi);
-
/* Is debug enabled */
static bool isDebug() { return sDebugLogs ? true : false; };
/* Is feature enabled */
@@ -212,14 +216,14 @@
void reset(hwc_context_t *ctx);
bool isSupportedForMDPComp(hwc_context_t *ctx, hwc_layer_1_t* layer);
bool resourceCheck();
- hwc_rect_t getUpdatingFBRect(hwc_display_contents_1_t* list);
- bool canDoPartialUpdate(hwc_context_t *ctx, hwc_display_contents_1_t* list);
+ hwc_rect_t getUpdatingFBRect(hwc_context_t *ctx,
+ hwc_display_contents_1_t* list);
+ /* checks for conditions to enable partial udpate */
+ bool canPartialUpdate(hwc_context_t *ctx, hwc_display_contents_1_t* list);
int mDpy;
static bool sEnabled;
static bool sEnableMixedMode;
- /* Enables Partial frame composition */
- static bool sEnablePartialFrameUpdate;
static bool sDebugLogs;
static bool sIdleFallBack;
/* Handles the timeout event from kernel, if the value is set to true */
@@ -262,6 +266,14 @@
/* configures 4kx2k yuv layer to 2 VG pipes*/
virtual int configure4k2kYuv(hwc_context_t *ctx, hwc_layer_1_t *layer,
PipeLayerPair& PipeLayerPair);
+ /* generates ROI based on the modified area of the frame */
+ virtual void generateROI(hwc_context_t *ctx,
+ hwc_display_contents_1_t* list);
+ /* validates the ROI generated for fallback conditions */
+ virtual bool validateAndApplyROI(hwc_context_t *ctx,
+ hwc_display_contents_1_t* list);
+ /* Trims fbRect calculated against ROI generated */
+ virtual void trimAgainstROI(hwc_context_t *ctx, hwc_rect_t& fbRect);
};
class MDPCompSplit : public MDPComp {
@@ -287,7 +299,6 @@
/* allocates pipes to selected candidates */
virtual bool allocLayerPipes(hwc_context_t *ctx,
hwc_display_contents_1_t* list);
-
private:
/* Increments mdpCount if 4k2k yuv layer split is enabled.
* updates framebuffer z order if fb lies above source-split layer */
@@ -297,6 +308,14 @@
/* configures 4kx2k yuv layer*/
virtual int configure4k2kYuv(hwc_context_t *ctx, hwc_layer_1_t *layer,
PipeLayerPair& PipeLayerPair);
+ /* generates ROI based on the modified area of the frame */
+ virtual void generateROI(hwc_context_t *ctx,
+ hwc_display_contents_1_t* list);
+ /* validates the ROI generated for fallback conditions */
+ virtual bool validateAndApplyROI(hwc_context_t *ctx,
+ hwc_display_contents_1_t* list);
+ /* Trims fbRect calculated against ROI generated */
+ virtual void trimAgainstROI(hwc_context_t *ctx, hwc_rect_t& fbRect);
};
class MDPCompSrcSplit : public MDPCompSplit {