hwc : Add hw limitation checks for MDP compposition.
Add hw limitation checks for MDP composition once
we identify actual layers for MDP. This should be generic
way for all basic hw limitations of underlying MDP/MDSS.
Current limitations:
- a-family : MDP can not handle alpha scaling.
- 8226 & 8974 : Can not handle if multiple layers need
downscaling and blending
Change-Id: Ia944802d798f2d0e9cd4515d7e9854c7314cac78
CRs-fixed: 538803
diff --git a/libhwcomposer/hwc_utils.h b/libhwcomposer/hwc_utils.h
index 2503e43..9751199 100644
--- a/libhwcomposer/hwc_utils.h
+++ b/libhwcomposer/hwc_utils.h
@@ -97,7 +97,6 @@
int yuvCount;
int yuvIndices[MAX_NUM_APP_LAYERS];
int extOnlyLayerIndex;
- bool needsAlphaScale;
bool preMultipliedAlpha;
int yuv4k2kIndices[MAX_NUM_APP_LAYERS];
int yuv4k2kCount;
@@ -205,8 +204,9 @@
bool isSecuring(hwc_context_t* ctx, hwc_layer_1_t const* layer);
bool isSecureModePolicy(int mdpVersion);
bool isExternalActive(hwc_context_t* ctx);
-bool needsScaling(hwc_context_t* ctx, hwc_layer_1_t const* layer,
- const int& dpy);
+bool isAlphaScaled(hwc_layer_1_t const* layer);
+bool needsScaling(hwc_layer_1_t const* layer);
+bool isDownscaleRequired(hwc_layer_1_t const* layer);
bool needsScalingWithSplit(hwc_context_t* ctx, hwc_layer_1_t const* layer,
const int& dpy);
void sanitizeSourceCrop(hwc_rect_t& cropL, hwc_rect_t& cropR,