/*
* Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef OVERLAY_UTILS_H
#define OVERLAY_UTILS_H
#include <cutils/log.h> // ALOGE, etc
#include <errno.h>
#include <fcntl.h> // open, O_RDWR, etc
#include <hardware/hardware.h>
#include <hardware/gralloc.h> // buffer_handle_t
#include <linux/msm_mdp.h> // flags
#include <linux/msm_rotator.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <utils/Log.h>
#include "gralloc_priv.h" //for interlace
// Older platforms do not support Venus
#ifndef VENUS_COLOR_FORMAT
#define MDP_Y_CBCR_H2V2_VENUS MDP_IMGTYPE_LIMIT
#endif
/*
*
* Collection of utilities functions/structs/enums etc...
*
* */
// comment that out if you want to remove asserts
// or put it as -D in Android.mk. your choice.
#define OVERLAY_HAS_ASSERT
#ifdef OVERLAY_HAS_ASSERT
# define OVASSERT(x, ...) if(!(x)) { ALOGE(__VA_ARGS__); abort(); }
#else
# define OVASSERT(x, ...) ALOGE_IF(!(x), __VA_ARGS__)
#endif // OVERLAY_HAS_ASSERT
#define DEBUG_OVERLAY 0
#define PROFILE_OVERLAY 0
#ifndef MDSS_MDP_RIGHT_MIXER
#define MDSS_MDP_RIGHT_MIXER 0x100
#endif
#ifndef MDP_OV_PIPE_FORCE_DMA
#define MDP_OV_PIPE_FORCE_DMA 0x4000
#endif
#ifndef MDSS_MDP_DUAL_PIPE
#define MDSS_MDP_DUAL_PIPE 0x200
#endif
#define FB_DEVICE_TEMPLATE "/dev/graphics/fb%u"
namespace overlay {
// fwd
class Overlay;
class OvFD;
/* helper function to open by using fbnum */
bool open(OvFD& fd, uint32_t fbnum, const char* const dev,
int flags = O_RDWR);
namespace utils {
struct Whf;
struct Dim;
inline uint32_t setBit(uint32_t x, uint32_t mask) {
return (x | mask);
}
inline uint32_t clrBit(uint32_t x, uint32_t mask) {
return (x & ~mask);
}
/* Utility class to help avoid copying instances by making the copy ctor
* and assignment operator private
*
* Usage:
* class SomeClass : utils::NoCopy {...};
*/
class NoCopy {
protected:
NoCopy(){}
~NoCopy() {}
private:
NoCopy(const NoCopy&);
const NoCopy& operator=(const NoCopy&);
};
bool isMdssRotator();
void normalizeCrop(uint32_t& xy, uint32_t& wh);
template <class Type>
void swapWidthHeight(Type& width, Type& height);
struct Dim {
Dim () : x(0), y(0),
w(0), h(0),
o(0) {}
Dim(uint32_t _x, uint32_t _y, uint32_t _w, uint32_t _h) :
x(_x), y(_y),
w(_w), h(_h) {}
Dim(uint32_t _x, uint32_t _y, uint32_t _w, uint32_t _h, uint32_t _o) :
x(_x), y(_y),
w(_w), h(_h),
o(_o) {}
bool check(uint32_t _w, uint32_t _h) const {
return (x+w <= _w && y+h <= _h);
}
bool operator==(const Dim& d) const {
return d.x == x && d.y == y &&
d.w == w && d.h == h &&
d.o == o;
}
bool operator!=(const Dim& d) const {
return !operator==(d);
}
void dump() const;
uint32_t x;
uint32_t y;
uint32_t w;
uint32_t h;
uint32_t o;
};
// TODO have Whfz
struct Whf {
Whf() : w(0), h(0), format(0), size(0) {}
Whf(uint32_t wi, uint32_t he, uint32_t f) :
w(wi), h(he), format(f), size(0) {}
Whf(uint32_t wi, uint32_t he, uint32_t f, uint32_t s) :
w(wi), h(he), format(f), size(s) {}
// FIXME not comparing size at the moment
bool operator==(const Whf& whf) const {
return whf.w == w && whf.h == h &&
whf.format == format;
}
bool operator!=(const Whf& whf) const {
return !operator==(whf);
}
void dump() const;
uint32_t w;
uint32_t h;
uint32_t format;
uint32_t size;
};
enum { MAX_PATH_LEN = 256 };
enum { DEFAULT_PLANE_ALPHA = 0xFF };
/**
* Rotator flags: not to be confused with orientation flags.
* Usually, you want to open the rotator to make sure it is
* ready for business.
* */
enum eRotFlags {
ROT_FLAGS_NONE = 0,
//Use rotator for 0 rotation. It is used anyway for others.
ROT_0_ENABLED = 1 << 0,
//Enable rotator downscale optimization for hardware bugs not handled in
//driver. If downscale optimizatation is required,
//then rotator will be used even if its 0 rotation case.
ROT_DOWNSCALE_ENABLED = 1 << 1,
ROT_PREROTATED = 1 << 2,
};
enum eRotDownscale {
ROT_DS_NONE = 0,
ROT_DS_HALF = 1,
ROT_DS_FOURTH = 2,
ROT_DS_EIGHTH = 3,
};
/* The values for is_fg flag for control alpha and transp
* IS_FG_OFF means is_fg = 0
* IS_FG_SET means is_fg = 1
*/
enum eIsFg {
IS_FG_OFF = 0,
IS_FG_SET = 1
};
/*
* Various mdp flags like PIPE SHARE, DEINTERLACE etc...
* kernel/common/linux/msm_mdp.h
* INTERLACE_MASK: hardware/qcom/display/libgralloc/badger/fb_priv.h
* */
enum eMdpFlags {
OV_MDP_FLAGS_NONE = 0,
OV_MDP_PIPE_SHARE = MDP_OV_PIPE_SHARE,
OV_MDP_PIPE_FORCE_DMA = MDP_OV_PIPE_FORCE_DMA,
OV_MDP_DEINTERLACE = MDP_DEINTERLACE,
OV_MDP_SECURE_OVERLAY_SESSION = MDP_SECURE_OVERLAY_SESSION,
OV_MDP_SECURE_DISPLAY_OVERLAY_SESSION = MDP_SECURE_DISPLAY_OVERLAY_SESSION,
OV_MDP_SOURCE_ROTATED_90 = MDP_SOURCE_ROTATED_90,
OV_MDP_BACKEND_COMPOSITION = MDP_BACKEND_COMPOSITION,
OV_MDP_BLEND_FG_PREMULT = MDP_BLEND_FG_PREMULT,
OV_MDP_FLIP_H = MDP_FLIP_LR,
OV_MDP_FLIP_V = MDP_FLIP_UD,
OV_MDSS_MDP_RIGHT_MIXER = MDSS_MDP_RIGHT_MIXER,
OV_MDP_PP_EN = MDP_OVERLAY_PP_CFG_EN,
OV_MDSS_MDP_BWC_EN = MDP_BWC_EN,
OV_MDSS_MDP_DUAL_PIPE = MDSS_MDP_DUAL_PIPE,
OV_MDP_SOLID_FILL = MDP_SOLID_FILL,
};
enum eZorder {
ZORDER_0 = 0,
ZORDER_1,
ZORDER_2,
ZORDER_3,
Z_SYSTEM_ALLOC = 0xFFFF
};
enum eMdpPipeType {
OV_MDP_PIPE_RGB = 0,
OV_MDP_PIPE_VG,
OV_MDP_PIPE_DMA,
OV_MDP_PIPE_ANY, //Any
};
// Identify destination pipes
// TODO Names useless, replace with int and change all interfaces
enum eDest {
OV_P0 = 0,
OV_P1,
OV_P2,
OV_P3,
OV_P4,
OV_P5,
OV_P6,
OV_P7,
OV_P8,
OV_P9,
OV_INVALID,
OV_MAX = OV_INVALID,
};
/* Used when a buffer is split over 2 pipes and sent to display */
enum {
OV_LEFT_SPLIT = 0,
OV_RIGHT_SPLIT,
};
/* values for copybit_set_parameter(OVERLAY_TRANSFORM) */
enum eTransform {
/* No rot */
OVERLAY_TRANSFORM_0 = 0x0,
/* flip source image horizontally 0x1 */
OVERLAY_TRANSFORM_FLIP_H = HAL_TRANSFORM_FLIP_H,
/* flip source image vertically 0x2 */
OVERLAY_TRANSFORM_FLIP_V = HAL_TRANSFORM_FLIP_V,
/* rotate source image 180 degrees
* It is basically bit-or-ed H | V == 0x3 */
OVERLAY_TRANSFORM_ROT_180 = HAL_TRANSFORM_ROT_180,
/* rotate source image 90 degrees 0x4 */
OVERLAY_TRANSFORM_ROT_90 = HAL_TRANSFORM_ROT_90,
/* rotate source image 90 degrees and flip horizontally 0x5 */
OVERLAY_TRANSFORM_ROT_90_FLIP_H = HAL_TRANSFORM_ROT_90 |
HAL_TRANSFORM_FLIP_H,
/* rotate source image 90 degrees and flip vertically 0x6 */
OVERLAY_TRANSFORM_ROT_90_FLIP_V = HAL_TRANSFORM_ROT_90 |
HAL_TRANSFORM_FLIP_V,
/* rotate source image 270 degrees
* Basically 180 | 90 == 0x7 */
OVERLAY_TRANSFORM_ROT_270 = HAL_TRANSFORM_ROT_270,
/* rotate invalid like in Transform.h */
OVERLAY_TRANSFORM_INV = 0x80
};
enum eBlending {
OVERLAY_BLENDING_UNDEFINED = 0x0,
/* No blending */
OVERLAY_BLENDING_OPAQUE,
/* src.rgb + dst.rgb*(1-src_alpha) */
OVERLAY_BLENDING_PREMULT,
/* src.rgb * src_alpha + dst.rgb (1 - src_alpha) */
OVERLAY_BLENDING_COVERAGE,
};
// Used to consolidate pipe params
struct PipeArgs {
PipeArgs() : mdpFlags(OV_MDP_FLAGS_NONE),
zorder(Z_SYSTEM_ALLOC),
isFg(IS_FG_OFF),
rotFlags(ROT_FLAGS_NONE),
planeAlpha(DEFAULT_PLANE_ALPHA),
blending(OVERLAY_BLENDING_COVERAGE){
}
PipeArgs(eMdpFlags f, Whf _whf,
eZorder z, eIsFg fg, eRotFlags r,
int pA = DEFAULT_PLANE_ALPHA, eBlending b = OVERLAY_BLENDING_COVERAGE) :
mdpFlags(f),
whf(_whf),
zorder(z),
isFg(fg),
rotFlags(r),
planeAlpha(pA),
blending(b){
}
eMdpFlags mdpFlags; // for mdp_overlay flags
Whf whf;
eZorder zorder; // stage number
eIsFg isFg; // control alpha & transp
eRotFlags rotFlags;
int planeAlpha;
eBlending blending;
};
// Cannot use HW_OVERLAY_MAGNIFICATION_LIMIT, since at the time
// of integration, HW_OVERLAY_MAGNIFICATION_LIMIT was a define
enum { HW_OV_MAGNIFICATION_LIMIT = 20,
HW_OV_MINIFICATION_LIMIT = 8
};
inline void setMdpFlags(eMdpFlags& f, eMdpFlags v) {
f = static_cast<eMdpFlags>(setBit(f, v));
}
inline void clearMdpFlags(eMdpFlags& f, eMdpFlags v) {
f = static_cast<eMdpFlags>(clrBit(f, v));
}
enum { FB0, FB1, FB2 };
struct ScreenInfo {
ScreenInfo() : mFBWidth(0),
mFBHeight(0),
mFBbpp(0),
mFBystride(0) {}
void dump(const char* const s) const;
uint32_t mFBWidth;
uint32_t mFBHeight;
uint32_t mFBbpp;
uint32_t mFBystride;
};
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);
void getDecimationFactor(const int& src_w, const int& src_h,
const int& dst_w, const int& dst_h, uint8_t& horzDeci,
uint8_t& vertDeci);
/* flip is upside down and such. V, H flip
* rotation is 90, 180 etc
* It returns MDP related enum/define that match rot+flip*/
int getMdpOrient(eTransform rotation);
const char* getFormatString(int format);
template <class T>
inline void memset0(T& t) { ::memset(&t, 0, sizeof(t)); }
template <class T> inline void swap ( T& a, T& b )
{
T c(a); a=b; b=c;
}
inline int alignup(int value, int a) {
//if align = 0, return the value. Else, do alignment.
return a ? ((((value - 1) / a) + 1) * a) : value;
}
inline int aligndown(int value, int a) {
//if align = 0, return the value. Else, do alignment.
return a ? ((value) & ~(a-1)) : value;
}
// FIXME that align should replace the upper one.
inline int align(int value, int a) {
//if align = 0, return the value. Else, do alignment.
return a ? ((value + (a-1)) & ~(a-1)) : value;
}
inline bool isYuv(uint32_t format) {
switch(format){
case MDP_Y_CBCR_H2V1:
case MDP_Y_CBCR_H2V2:
case MDP_Y_CRCB_H2V2:
case MDP_Y_CRCB_H1V1:
case MDP_Y_CRCB_H2V1:
case MDP_Y_CRCB_H2V2_TILE:
case MDP_Y_CBCR_H2V2_TILE:
case MDP_Y_CR_CB_H2V2:
case MDP_Y_CR_CB_GH2V2:
case MDP_Y_CBCR_H2V2_VENUS:
case MDP_YCBYCR_H2V1:
case MDP_YCRYCB_H2V1:
return true;
default:
return false;
}
return false;
}
inline bool isRgb(uint32_t format) {
switch(format) {
case MDP_RGBA_8888:
case MDP_BGRA_8888:
case MDP_RGBX_8888:
case MDP_RGB_565:
return true;
default:
return false;
}
return false;
}
inline const char* getFormatString(int format){
#define STR(f) #f;
static const char* formats[MDP_IMGTYPE_LIMIT + 1] = {0};
formats[MDP_RGB_565] = STR(MDP_RGB_565);
formats[MDP_XRGB_8888] = STR(MDP_XRGB_8888);
formats[MDP_Y_CBCR_H2V2] = STR(MDP_Y_CBCR_H2V2);
formats[MDP_Y_CBCR_H2V2_ADRENO] = STR(MDP_Y_CBCR_H2V2_ADRENO);
formats[MDP_ARGB_8888] = STR(MDP_ARGB_8888);
formats[MDP_RGB_888] = STR(MDP_RGB_888);
formats[MDP_Y_CRCB_H2V2] = STR(MDP_Y_CRCB_H2V2);
formats[MDP_YCBYCR_H2V1] = STR(MDP_YCBYCR_H2V1);
formats[MDP_YCRYCB_H2V1] = STR(MDP_YCRYCB_H2V1);
formats[MDP_CBYCRY_H2V1] = STR(MDP_CBYCRY_H2V1);
formats[MDP_Y_CRCB_H2V1] = STR(MDP_Y_CRCB_H2V1);
formats[MDP_Y_CBCR_H2V1] = STR(MDP_Y_CBCR_H2V1);
formats[MDP_Y_CRCB_H1V2] = STR(MDP_Y_CRCB_H1V2);
formats[MDP_Y_CBCR_H1V2] = STR(MDP_Y_CBCR_H1V2);
formats[MDP_RGBA_8888] = STR(MDP_RGBA_8888);
formats[MDP_BGRA_8888] = STR(MDP_BGRA_8888);
formats[MDP_RGBX_8888] = STR(MDP_RGBX_8888);
formats[MDP_Y_CRCB_H2V2_TILE] = STR(MDP_Y_CRCB_H2V2_TILE);
formats[MDP_Y_CBCR_H2V2_TILE] = STR(MDP_Y_CBCR_H2V2_TILE);
formats[MDP_Y_CR_CB_H2V2] = STR(MDP_Y_CR_CB_H2V2);
formats[MDP_Y_CR_CB_GH2V2] = STR(MDP_Y_CR_CB_GH2V2);
formats[MDP_Y_CB_CR_H2V2] = STR(MDP_Y_CB_CR_H2V2);
formats[MDP_Y_CRCB_H1V1] = STR(MDP_Y_CRCB_H1V1);
formats[MDP_Y_CBCR_H1V1] = STR(MDP_Y_CBCR_H1V1);
formats[MDP_YCRCB_H1V1] = STR(MDP_YCRCB_H1V1);
formats[MDP_YCBCR_H1V1] = STR(MDP_YCBCR_H1V1);
formats[MDP_BGR_565] = STR(MDP_BGR_565);
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_RGB_565_TILE] = STR(MDP_RGB_565_TILE);
formats[MDP_IMGTYPE_LIMIT] = STR(MDP_IMGTYPE_LIMIT);
if(format < 0 || format >= MDP_IMGTYPE_LIMIT) {
ALOGE("%s wrong fmt %d", __FUNCTION__, format);
return "Unsupported format";
}
if(formats[format] == 0) {
ALOGE("%s: table missing format %d from header", __FUNCTION__, format);
return "";
}
return formats[format];
}
inline void Whf::dump() const {
ALOGE("== Dump WHF w=%d h=%d f=%d s=%d start/end ==",
w, h, format, size);
}
inline void Dim::dump() const {
ALOGE("== Dump Dim x=%d y=%d w=%d h=%d start/end ==", x, y, w, h);
}
template <class Type>
void swapWidthHeight(Type& width, Type& height) {
Type tmp = width;
width = height;
height = tmp;
}
inline void ScreenInfo::dump(const char* const s) const {
ALOGE("== Dump %s ScreenInfo w=%d h=%d"
" bpp=%d stride=%d start/end ==",
s, mFBWidth, mFBHeight, mFBbpp, mFBystride);
}
inline bool openDev(OvFD& fd, int fbnum,
const char* const devpath, int flags) {
return overlay::open(fd, fbnum, devpath, flags);
}
template <class T>
inline void even_ceil(T& value) {
if(value & 1)
value++;
}
template <class T>
inline void even_floor(T& value) {
if(value & 1)
value--;
}
/* Prerotation adjusts crop co-ordinates to the new transformed values within
* destination buffer. This is necessary only when the entire buffer is rotated
* irrespective of crop (A-family). If only the crop portion of the buffer is
* rotated into a destination buffer matching the size of crop, we don't need to
* use this helper (B-family).
* @Deprecated as of now, retained for the case where a full buffer needs
* transform and also as a reference.
*/
void preRotateSource(const eTransform& tr, Whf& whf, Dim& srcCrop);
void getDump(char *buf, size_t len, const char *prefix, const mdp_overlay& ov);
void getDump(char *buf, size_t len, const char *prefix, const msmfb_img& ov);
void getDump(char *buf, size_t len, const char *prefix, const mdp_rect& ov);
void getDump(char *buf, size_t len, const char *prefix,
const msmfb_overlay_data& ov);
void getDump(char *buf, size_t len, const char *prefix, const msmfb_data& ov);
void getDump(char *buf, size_t len, const char *prefix,
const msm_rotator_img_info& ov);
void getDump(char *buf, size_t len, const char *prefix,
const msm_rotator_data_info& ov);
} // namespace utils ends
//--------------------Class Res stuff (namespace overlay only) -----------
class Res {
public:
// /dev/graphics/fb%u
static const char* const fbPath;
// /dev/msm_rotator
static const char* const rotPath;
};
//--------------------Class OvFD stuff (namespace overlay only) -----------
/*
* Holds one FD
* Dtor will NOT close the underlying FD.
* That enables us to copy that object around
* */
class OvFD {
public:
/* Ctor */
explicit OvFD();
/* dtor will NOT close the underlying FD */
~OvFD();
/* Open fd using the path given by dev.
* return false in failure */
bool open(const char* const dev,
int flags = O_RDWR);
/* populate path */
void setPath(const char* const dev);
/* Close fd if we have a valid fd. */
bool close();
/* returns underlying fd.*/
int getFD() const;
/* returns true if fd is valid */
bool valid() const;
/* like operator= */
void copy(int fd);
/* dump the state of the instance */
void dump() const;
private:
/* helper enum for determine valid/invalid fd */
enum { INVAL = -1 };
/* actual os fd */
int mFD;
/* path, for debugging */
char mPath[utils::MAX_PATH_LEN];
};
//-------------------Inlines--------------------------
inline bool open(OvFD& fd, uint32_t fbnum, const char* const dev, int flags)
{
char dev_name[64] = {0};
snprintf(dev_name, sizeof(dev_name), dev, fbnum);
return fd.open(dev_name, flags);
}
inline OvFD::OvFD() : mFD (INVAL) {
mPath[0] = 0;
}
inline OvFD::~OvFD() {
//no op since copy() can be used to share fd, in 3d cases.
}
inline bool OvFD::open(const char* const dev, int flags)
{
mFD = ::open(dev, flags, 0);
if (mFD < 0) {
// FIXME errno, strerror in bionic?
ALOGE("Cant open device %s err=%d", dev, errno);
return false;
}
setPath(dev);
return true;
}
inline void OvFD::setPath(const char* const dev)
{
::strlcpy(mPath, dev, sizeof(mPath));
}
inline bool OvFD::close()
{
int ret = 0;
if(valid()) {
ret = ::close(mFD);
mFD = INVAL;
}
return (ret == 0);
}
inline bool OvFD::valid() const
{
return (mFD != INVAL);
}
inline int OvFD::getFD() const { return mFD; }
inline void OvFD::copy(int fd) {
mFD = fd;
}
inline void OvFD::dump() const
{
ALOGE("== Dump OvFD fd=%d path=%s start/end ==",
mFD, mPath);
}
//--------------- class OvFD stuff ends ---------------------
} // overlay
#endif // OVERLAY_UTILS_H