commit 8a22081e499731b0f47292e3bf4d54a080ac6be9
author Manoj Kumar AVM <manojavm@codeaurora.org> Thu Oct 10 11:46:06 2013 -0700
committer Manoj Kumar AVM <manojavm@codeaurora.org> Tue Jan 14 13:32:31 2014 -0800
tree d8ea833441162c48e1c3c178b5c5e4304c758199
parent 8dad692bcb6e2e6b2ad88e4c16b0f7ec0f93b96e

hwc: Add support for Macro Tile feature

Macro tile is enabled only if all the conditions are met:
  1. GPU hardware should support Macro Tiling.
  2. MDSS hardware should support Macro Tiling.
  3. USAGE flags shouldnt contain GRALLOC_USAGE_SW_READ_OFTEN and
     GRALLOC_USAGE_SW_WRITE_OFTEN.
  4. RGB 16bit and 32bit formats.
  5. persist.hwc.macro_tile_enable flag should be enabled.

PRIV_FLAGS_TILE_RENDERED flag is added to indicate whether the layer
is rendered/composited in Macro Tiling or Linear format.

Change-Id: Ie3139839c84d76c5d1a2300f33910a09eb7336f4

liboverlay/overlayUtils.cpp

diff --git a/liboverlay/overlayUtils.cpp b/liboverlay/overlayUtils.cpp
index 1377182..30de1db 100644
--- a/liboverlay/overlayUtils.cpp
+++ b/liboverlay/overlayUtils.cpp
@@ -36,6 +36,7 @@
 #include "overlayUtils.h"
 #include "mdpWrapper.h"
 #include "mdp_version.h"
+#include <hardware/hwcomposer_defs.h>
 
 // just a helper static thingy
 namespace {
@@ -145,6 +146,34 @@
     return -1;
 }
 
+// This function returns corresponding tile format
+// MDSS support following RGB tile formats
+//  32 bit formats
+//  16 bit formats
+int getMdpFormat(int format, bool tileEnabled)
+{
+    if(!tileEnabled) {
+        return getMdpFormat(format);
+    }
+    switch (format) {
+        case HAL_PIXEL_FORMAT_RGBA_8888 :
+            return MDP_RGBA_8888_TILE;
+        case HAL_PIXEL_FORMAT_RGBX_8888:
+            return MDP_RGBX_8888_TILE;
+        case HAL_PIXEL_FORMAT_RGB_565:
+            // Currenty Driver doesnt support 565 tile format
+            return MDP_RGB_565;
+        case HAL_PIXEL_FORMAT_BGRA_8888:
+            return MDP_BGRA_8888_TILE;
+        case HAL_PIXEL_FORMAT_BGRX_8888:
+            return MDP_BGRX_8888_TILE;
+        default:
+            return getMdpFormat(format);
+    }
+}
+
+
+
 //Takes mdp format as input and translates to equivalent HAL format
 //Refer to graphics.h, gralloc_priv.h, msm_mdp.h for formats.
 int getHALFormat(int mdpFormat) {

liboverlay/overlayUtils.h

diff --git a/liboverlay/overlayUtils.h b/liboverlay/overlayUtils.h
index 904d607..33802e5 100644
--- a/liboverlay/overlayUtils.h
+++ b/liboverlay/overlayUtils.h
@@ -408,6 +408,7 @@
 };
 
 int getMdpFormat(int format);
+int getMdpFormat(int format, bool tileEnabled);
 int getHALFormat(int mdpFormat);
 int getDownscaleFactor(const int& src_w, const int& src_h,
         const int& dst_w, const int& dst_h);
@@ -545,6 +546,14 @@
     formats[MDP_BGR_888] = STR(MDP_BGR_888);
     formats[MDP_Y_CBCR_H2V2_VENUS] = STR(MDP_Y_CBCR_H2V2_VENUS);
     formats[MDP_BGRX_8888] = STR(MDP_BGRX_8888);
+    formats[MDP_RGBA_8888_TILE] = STR(MDP_RGBA_8888_TILE);
+    formats[MDP_ARGB_8888_TILE] = STR(MDP_ARGB_8888_TILE);
+    formats[MDP_ABGR_8888_TILE] = STR(MDP_ABGR_8888_TILE);
+    formats[MDP_BGRA_8888_TILE] = STR(MDP_BGRA_8888_TILE);
+    formats[MDP_RGBX_8888_TILE] = STR(MDP_RGBX_8888_TILE);
+    formats[MDP_XRGB_8888_TILE] = STR(MDP_XRGB_8888_TILE);
+    formats[MDP_XBGR_8888_TILE] = STR(MDP_XBGR_8888_TILE);
+    formats[MDP_BGRX_8888_TILE] = STR(MDP_BGRX_8888_TILE);
     formats[MDP_IMGTYPE_LIMIT] = STR(MDP_IMGTYPE_LIMIT);
 
     if(format < 0 || format >= MDP_IMGTYPE_LIMIT) {