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      1 /*
      2 * Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
      3 *
      4 * Redistribution and use in source and binary forms, with or without
      5 * modification, are permitted provided that the following conditions are
      6 * met:
      7 *    * Redistributions of source code must retain the above copyright
      8 *      notice, this list of conditions and the following disclaimer.
      9 *    * Redistributions in binary form must reproduce the above
     10 *      copyright notice, this list of conditions and the following
     11 *      disclaimer in the documentation and/or other materials provided
     12 *      with the distribution.
     13 *    * Neither the name of The Linux Foundation nor the names of its
     14 *      contributors may be used to endorse or promote products derived
     15 *      from this software without specific prior written permission.
     16 *
     17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
     18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
     20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
     21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28 */
     29 
     30 #ifndef OVERLAY_UTILS_H
     31 #define OVERLAY_UTILS_H
     32 
     33 #include <cutils/log.h> // ALOGE, etc
     34 #include <errno.h>
     35 #include <fcntl.h> // open, O_RDWR, etc
     36 #include <hardware/hardware.h>
     37 #include <hardware/gralloc.h> // buffer_handle_t
     38 #include <linux/msm_mdp.h> // flags
     39 #include <linux/msm_rotator.h>
     40 #include <stdio.h>
     41 #include <stdlib.h>
     42 #include <string.h>
     43 #include <sys/stat.h>
     44 #include <sys/types.h>
     45 #include <utils/Log.h>
     46 #include "gralloc_priv.h" //for interlace
     47 
     48 // Older platforms do not support Venus
     49 #ifndef VENUS_COLOR_FORMAT
     50 #define MDP_Y_CBCR_H2V2_VENUS MDP_IMGTYPE_LIMIT
     51 #endif
     52 
     53 /*
     54 *
     55 * Collection of utilities functions/structs/enums etc...
     56 *
     57 * */
     58 
     59 // comment that out if you want to remove asserts
     60 // or put it as -D in Android.mk. your choice.
     61 #define OVERLAY_HAS_ASSERT
     62 
     63 #ifdef OVERLAY_HAS_ASSERT
     64 # define OVASSERT(x, ...) if(!(x)) { ALOGE(__VA_ARGS__); abort(); }
     65 #else
     66 # define OVASSERT(x, ...) ALOGE_IF(!(x), __VA_ARGS__)
     67 #endif // OVERLAY_HAS_ASSERT
     68 
     69 #define DEBUG_OVERLAY 0
     70 #define PROFILE_OVERLAY 0
     71 
     72 #ifndef MDSS_MDP_RIGHT_MIXER
     73 #define MDSS_MDP_RIGHT_MIXER 0x100
     74 #endif
     75 
     76 #ifndef MDP_OV_PIPE_FORCE_DMA
     77 #define MDP_OV_PIPE_FORCE_DMA 0x4000
     78 #endif
     79 
     80 #ifndef MDSS_MDP_DUAL_PIPE
     81 #define MDSS_MDP_DUAL_PIPE 0x200
     82 #endif
     83 
     84 #define FB_DEVICE_TEMPLATE "/dev/graphics/fb%u"
     85 
     86 namespace overlay {
     87 
     88 // fwd
     89 class Overlay;
     90 class OvFD;
     91 
     92 /* helper function to open by using fbnum */
     93 bool open(OvFD& fd, uint32_t fbnum, const char* const dev,
     94     int flags = O_RDWR);
     95 
     96 namespace utils {
     97 struct Whf;
     98 struct Dim;
     99 
    100 inline uint32_t setBit(uint32_t x, uint32_t mask) {
    101     return (x | mask);
    102 }
    103 
    104 inline uint32_t clrBit(uint32_t x, uint32_t mask) {
    105     return (x & ~mask);
    106 }
    107 
    108 /* Utility class to help avoid copying instances by making the copy ctor
    109 * and assignment operator private
    110 *
    111 * Usage:
    112 *    class SomeClass : utils::NoCopy {...};
    113 */
    114 class NoCopy {
    115 protected:
    116     NoCopy(){}
    117     ~NoCopy() {}
    118 private:
    119     NoCopy(const NoCopy&);
    120     const NoCopy& operator=(const NoCopy&);
    121 };
    122 
    123 
    124 /* 3D related utils, defines etc...
    125  * The compound format passed to the overlay is
    126  * ABCCC where A is the input 3D format
    127  * B is the output 3D format
    128  * CCC is the color format e.g YCbCr420SP YCrCb420SP etc */
    129 enum { SHIFT_OUT_3D = 12,
    130     SHIFT_TOT_3D = 16 };
    131 enum { INPUT_3D_MASK = 0xFFFF0000,
    132     OUTPUT_3D_MASK = 0x0000FFFF };
    133 enum { BARRIER_LAND = 1,
    134     BARRIER_PORT = 2 };
    135 
    136 inline uint32_t format3D(uint32_t x) { return x & 0xFF000; }
    137 inline uint32_t format3DOutput(uint32_t x) {
    138     return (x & 0xF000) >> SHIFT_OUT_3D; }
    139 inline uint32_t format3DInput(uint32_t x) { return x & 0xF0000; }
    140 
    141 bool isHDMIConnected ();
    142 bool is3DTV();
    143 bool isPanel3D();
    144 bool usePanel3D();
    145 bool send3DInfoPacket (uint32_t fmt);
    146 bool enableBarrier (uint32_t orientation);
    147 uint32_t getS3DFormat(uint32_t fmt);
    148 bool isMdssRotator();
    149 void normalizeCrop(uint32_t& xy, uint32_t& wh);
    150 
    151 template <int CHAN>
    152 bool getPositionS3D(const Whf& whf, Dim& out);
    153 
    154 template <int CHAN>
    155 bool getCropS3D(const Dim& in, Dim& out, uint32_t fmt);
    156 
    157 template <class Type>
    158 void swapWidthHeight(Type& width, Type& height);
    159 
    160 struct Dim {
    161     Dim () : x(0), y(0),
    162     w(0), h(0),
    163     o(0) {}
    164     Dim(uint32_t _x, uint32_t _y, uint32_t _w, uint32_t _h) :
    165         x(_x), y(_y),
    166         w(_w), h(_h) {}
    167     Dim(uint32_t _x, uint32_t _y, uint32_t _w, uint32_t _h, uint32_t _o) :
    168         x(_x), y(_y),
    169         w(_w), h(_h),
    170         o(_o) {}
    171     bool check(uint32_t _w, uint32_t _h) const {
    172         return (x+w <= _w && y+h <= _h);
    173 
    174     }
    175 
    176     bool operator==(const Dim& d) const {
    177         return d.x == x && d.y == y &&
    178                 d.w == w && d.h == h &&
    179                 d.o == o;
    180     }
    181 
    182     bool operator!=(const Dim& d) const {
    183         return !operator==(d);
    184     }
    185 
    186     void dump() const;
    187     uint32_t x;
    188     uint32_t y;
    189     uint32_t w;
    190     uint32_t h;
    191     uint32_t o;
    192 };
    193 
    194 // TODO have Whfz
    195 
    196 struct Whf {
    197     Whf() : w(0), h(0), format(0), size(0) {}
    198     Whf(uint32_t wi, uint32_t he, uint32_t f) :
    199         w(wi), h(he), format(f), size(0) {}
    200     Whf(uint32_t wi, uint32_t he, uint32_t f, uint32_t s) :
    201         w(wi), h(he), format(f), size(s) {}
    202     // FIXME not comparing size at the moment
    203     bool operator==(const Whf& whf) const {
    204         return whf.w == w && whf.h == h &&
    205                 whf.format == format;
    206     }
    207     bool operator!=(const Whf& whf) const {
    208         return !operator==(whf);
    209     }
    210     void dump() const;
    211     uint32_t w;
    212     uint32_t h;
    213     uint32_t format;
    214     uint32_t size;
    215 };
    216 
    217 enum { MAX_PATH_LEN = 256 };
    218 
    219 enum { DEFAULT_PLANE_ALPHA = 0xFF };
    220 
    221 /**
    222  * Rotator flags: not to be confused with orientation flags.
    223  * Usually, you want to open the rotator to make sure it is
    224  * ready for business.
    225  * */
    226  enum eRotFlags {
    227     ROT_FLAGS_NONE = 0,
    228     //Use rotator for 0 rotation. It is used anyway for others.
    229     ROT_0_ENABLED = 1 << 0,
    230     //Enable rotator downscale optimization for hardware bugs not handled in
    231     //driver. If downscale optimizatation is required,
    232     //then rotator will be used even if its 0 rotation case.
    233     ROT_DOWNSCALE_ENABLED = 1 << 1,
    234     ROT_PREROTATED = 1 << 2,
    235 };
    236 
    237 enum eRotDownscale {
    238     ROT_DS_NONE = 0,
    239     ROT_DS_HALF = 1,
    240     ROT_DS_FOURTH = 2,
    241     ROT_DS_EIGHTH = 3,
    242 };
    243 
    244 /* The values for is_fg flag for control alpha and transp
    245  * IS_FG_OFF means is_fg = 0
    246  * IS_FG_SET means is_fg = 1
    247  */
    248 enum eIsFg {
    249     IS_FG_OFF = 0,
    250     IS_FG_SET = 1
    251 };
    252 
    253 /*
    254  * Various mdp flags like PIPE SHARE, DEINTERLACE etc...
    255  * kernel/common/linux/msm_mdp.h
    256  * INTERLACE_MASK: hardware/qcom/display/libgralloc/badger/fb_priv.h
    257  * */
    258 enum eMdpFlags {
    259     OV_MDP_FLAGS_NONE = 0,
    260     OV_MDP_PIPE_SHARE =  MDP_OV_PIPE_SHARE,
    261     OV_MDP_PIPE_FORCE_DMA = MDP_OV_PIPE_FORCE_DMA,
    262     OV_MDP_DEINTERLACE = MDP_DEINTERLACE,
    263     OV_MDP_SECURE_OVERLAY_SESSION = MDP_SECURE_OVERLAY_SESSION,
    264     OV_MDP_SECURE_DISPLAY_OVERLAY_SESSION = MDP_SECURE_DISPLAY_OVERLAY_SESSION,
    265     OV_MDP_SOURCE_ROTATED_90 = MDP_SOURCE_ROTATED_90,
    266     OV_MDP_BACKEND_COMPOSITION = MDP_BACKEND_COMPOSITION,
    267     OV_MDP_BLEND_FG_PREMULT = MDP_BLEND_FG_PREMULT,
    268     OV_MDP_FLIP_H = MDP_FLIP_LR,
    269     OV_MDP_FLIP_V = MDP_FLIP_UD,
    270     OV_MDSS_MDP_RIGHT_MIXER = MDSS_MDP_RIGHT_MIXER,
    271     OV_MDP_PP_EN = MDP_OVERLAY_PP_CFG_EN,
    272     OV_MDSS_MDP_BWC_EN = MDP_BWC_EN,
    273     OV_MDSS_MDP_DUAL_PIPE = MDSS_MDP_DUAL_PIPE,
    274     OV_MDP_SOLID_FILL = MDP_SOLID_FILL,
    275 };
    276 
    277 enum eZorder {
    278     ZORDER_0 = 0,
    279     ZORDER_1,
    280     ZORDER_2,
    281     ZORDER_3,
    282     Z_SYSTEM_ALLOC = 0xFFFF
    283 };
    284 
    285 enum eMdpPipeType {
    286     OV_MDP_PIPE_RGB = 0,
    287     OV_MDP_PIPE_VG,
    288     OV_MDP_PIPE_DMA,
    289     OV_MDP_PIPE_ANY, //Any
    290 };
    291 
    292 // Identify destination pipes
    293 // TODO Names useless, replace with int and change all interfaces
    294 enum eDest {
    295     OV_P0 = 0,
    296     OV_P1,
    297     OV_P2,
    298     OV_P3,
    299     OV_P4,
    300     OV_P5,
    301     OV_P6,
    302     OV_P7,
    303     OV_P8,
    304     OV_P9,
    305     OV_INVALID,
    306     OV_MAX = OV_INVALID,
    307 };
    308 
    309 /* Used when a buffer is split over 2 pipes and sent to display */
    310 enum {
    311     OV_LEFT_SPLIT = 0,
    312     OV_RIGHT_SPLIT,
    313 };
    314 
    315 /* values for copybit_set_parameter(OVERLAY_TRANSFORM) */
    316 enum eTransform {
    317     /* No rot */
    318     OVERLAY_TRANSFORM_0 = 0x0,
    319     /* flip source image horizontally 0x1 */
    320     OVERLAY_TRANSFORM_FLIP_H = HAL_TRANSFORM_FLIP_H,
    321     /* flip source image vertically 0x2 */
    322     OVERLAY_TRANSFORM_FLIP_V = HAL_TRANSFORM_FLIP_V,
    323     /* rotate source image 180 degrees
    324      * It is basically bit-or-ed  H | V == 0x3 */
    325     OVERLAY_TRANSFORM_ROT_180 = HAL_TRANSFORM_ROT_180,
    326     /* rotate source image 90 degrees 0x4 */
    327     OVERLAY_TRANSFORM_ROT_90 = HAL_TRANSFORM_ROT_90,
    328     /* rotate source image 90 degrees and flip horizontally 0x5 */
    329     OVERLAY_TRANSFORM_ROT_90_FLIP_H = HAL_TRANSFORM_ROT_90 |
    330                                       HAL_TRANSFORM_FLIP_H,
    331     /* rotate source image 90 degrees and flip vertically 0x6 */
    332     OVERLAY_TRANSFORM_ROT_90_FLIP_V = HAL_TRANSFORM_ROT_90 |
    333                                       HAL_TRANSFORM_FLIP_V,
    334     /* rotate source image 270 degrees
    335      * Basically 180 | 90 == 0x7 */
    336     OVERLAY_TRANSFORM_ROT_270 = HAL_TRANSFORM_ROT_270,
    337     /* rotate invalid like in Transform.h */
    338     OVERLAY_TRANSFORM_INV = 0x80
    339 };
    340 
    341 enum eBlending {
    342     OVERLAY_BLENDING_UNDEFINED = 0x0,
    343     /* No blending */
    344     OVERLAY_BLENDING_OPAQUE,
    345     /* src.rgb + dst.rgb*(1-src_alpha) */
    346     OVERLAY_BLENDING_PREMULT,
    347     /* src.rgb * src_alpha + dst.rgb (1 - src_alpha) */
    348     OVERLAY_BLENDING_COVERAGE,
    349 };
    350 
    351 // Used to consolidate pipe params
    352 struct PipeArgs {
    353     PipeArgs() : mdpFlags(OV_MDP_FLAGS_NONE),
    354         zorder(Z_SYSTEM_ALLOC),
    355         isFg(IS_FG_OFF),
    356         rotFlags(ROT_FLAGS_NONE),
    357         planeAlpha(DEFAULT_PLANE_ALPHA),
    358         blending(OVERLAY_BLENDING_COVERAGE){
    359     }
    360 
    361     PipeArgs(eMdpFlags f, Whf _whf,
    362             eZorder z, eIsFg fg, eRotFlags r,
    363             int pA = DEFAULT_PLANE_ALPHA, eBlending b = OVERLAY_BLENDING_COVERAGE) :
    364         mdpFlags(f),
    365         whf(_whf),
    366         zorder(z),
    367         isFg(fg),
    368         rotFlags(r),
    369         planeAlpha(pA),
    370         blending(b){
    371     }
    372 
    373     eMdpFlags mdpFlags; // for mdp_overlay flags
    374     Whf whf;
    375     eZorder zorder; // stage number
    376     eIsFg isFg; // control alpha & transp
    377     eRotFlags rotFlags;
    378     int planeAlpha;
    379     eBlending blending;
    380 };
    381 
    382 // Cannot use HW_OVERLAY_MAGNIFICATION_LIMIT, since at the time
    383 // of integration, HW_OVERLAY_MAGNIFICATION_LIMIT was a define
    384 enum { HW_OV_MAGNIFICATION_LIMIT = 20,
    385     HW_OV_MINIFICATION_LIMIT  = 8
    386 };
    387 
    388 inline void setMdpFlags(eMdpFlags& f, eMdpFlags v) {
    389     f = static_cast<eMdpFlags>(setBit(f, v));
    390 }
    391 
    392 inline void clearMdpFlags(eMdpFlags& f, eMdpFlags v) {
    393     f = static_cast<eMdpFlags>(clrBit(f, v));
    394 }
    395 
    396 enum { FB0, FB1, FB2 };
    397 
    398 struct ScreenInfo {
    399     ScreenInfo() : mFBWidth(0),
    400     mFBHeight(0),
    401     mFBbpp(0),
    402     mFBystride(0) {}
    403     void dump(const char* const s) const;
    404     uint32_t mFBWidth;
    405     uint32_t mFBHeight;
    406     uint32_t mFBbpp;
    407     uint32_t mFBystride;
    408 };
    409 
    410 int getMdpFormat(int format);
    411 int getMdpFormat(int format, bool tileEnabled);
    412 int getHALFormat(int mdpFormat);
    413 int getDownscaleFactor(const int& src_w, const int& src_h,
    414         const int& dst_w, const int& dst_h);
    415 void getDecimationFactor(const int& src_w, const int& src_h,
    416         const int& dst_w, const int& dst_h, float& horDscale,
    417         float& verDscale);
    418 
    419 /* flip is upside down and such. V, H flip
    420  * rotation is 90, 180 etc
    421  * It returns MDP related enum/define that match rot+flip*/
    422 int getMdpOrient(eTransform rotation);
    423 const char* getFormatString(int format);
    424 
    425 template <class T>
    426 inline void memset0(T& t) { ::memset(&t, 0, sizeof(t)); }
    427 
    428 template <class T> inline void swap ( T& a, T& b )
    429 {
    430     T c(a); a=b; b=c;
    431 }
    432 
    433 inline int alignup(int value, int a) {
    434     //if align = 0, return the value. Else, do alignment.
    435     return a ? ((((value - 1) / a) + 1) * a) : value;
    436 }
    437 
    438 inline int aligndown(int value, int a) {
    439     //if align = 0, return the value. Else, do alignment.
    440     return a ? ((value) & ~(a-1)) : value;
    441 }
    442 
    443 // FIXME that align should replace the upper one.
    444 inline int align(int value, int a) {
    445     //if align = 0, return the value. Else, do alignment.
    446     return a ? ((value + (a-1)) & ~(a-1)) : value;
    447 }
    448 
    449 enum eRotOutFmt {
    450     ROT_OUT_FMT_DEFAULT,
    451     ROT_OUT_FMT_Y_CRCB_H2V2
    452 };
    453 
    454 template <int ROT_OUT_FMT> struct RotOutFmt;
    455 
    456 // FIXME, taken from gralloc_priv.h. Need to
    457 // put it back as soon as overlay takes place of the old one
    458 /* possible formats for 3D content*/
    459 enum {
    460     HAL_NO_3D                         = 0x0000,
    461     HAL_3D_IN_SIDE_BY_SIDE_L_R        = 0x10000,
    462     HAL_3D_IN_TOP_BOTTOM              = 0x20000,
    463     HAL_3D_IN_INTERLEAVE              = 0x40000,
    464     HAL_3D_IN_SIDE_BY_SIDE_R_L        = 0x80000,
    465     HAL_3D_OUT_SIDE_BY_SIDE           = 0x1000,
    466     HAL_3D_OUT_TOP_BOTTOM             = 0x2000,
    467     HAL_3D_OUT_INTERLEAVE             = 0x4000,
    468     HAL_3D_OUT_MONOSCOPIC             = 0x8000
    469 };
    470 
    471 enum { HAL_3D_OUT_SBS_MASK =
    472     HAL_3D_OUT_SIDE_BY_SIDE >> overlay::utils::SHIFT_OUT_3D,
    473     HAL_3D_OUT_TOP_BOT_MASK =
    474             HAL_3D_OUT_TOP_BOTTOM >> overlay::utils::SHIFT_OUT_3D,
    475     HAL_3D_OUT_INTERL_MASK =
    476             HAL_3D_OUT_INTERLEAVE >> overlay::utils::SHIFT_OUT_3D,
    477     HAL_3D_OUT_MONOS_MASK =
    478             HAL_3D_OUT_MONOSCOPIC >> overlay::utils::SHIFT_OUT_3D
    479 };
    480 
    481 
    482 inline bool isYuv(uint32_t format) {
    483     switch(format){
    484         case MDP_Y_CBCR_H2V1:
    485         case MDP_Y_CBCR_H2V2:
    486         case MDP_Y_CRCB_H2V2:
    487         case MDP_Y_CRCB_H1V1:
    488         case MDP_Y_CRCB_H2V1:
    489         case MDP_Y_CRCB_H2V2_TILE:
    490         case MDP_Y_CBCR_H2V2_TILE:
    491         case MDP_Y_CR_CB_H2V2:
    492         case MDP_Y_CR_CB_GH2V2:
    493         case MDP_Y_CBCR_H2V2_VENUS:
    494         case MDP_YCBYCR_H2V1:
    495         case MDP_YCRYCB_H2V1:
    496             return true;
    497         default:
    498             return false;
    499     }
    500     return false;
    501 }
    502 
    503 inline bool isRgb(uint32_t format) {
    504     switch(format) {
    505         case MDP_RGBA_8888:
    506         case MDP_BGRA_8888:
    507         case MDP_RGBX_8888:
    508         case MDP_RGB_565:
    509             return true;
    510         default:
    511             return false;
    512     }
    513     return false;
    514 }
    515 
    516 inline const char* getFormatString(int format){
    517     #define STR(f) #f;
    518     static const char* formats[MDP_IMGTYPE_LIMIT + 1] = {0};
    519     formats[MDP_RGB_565] = STR(MDP_RGB_565);
    520     formats[MDP_XRGB_8888] = STR(MDP_XRGB_8888);
    521     formats[MDP_Y_CBCR_H2V2] = STR(MDP_Y_CBCR_H2V2);
    522     formats[MDP_Y_CBCR_H2V2_ADRENO] = STR(MDP_Y_CBCR_H2V2_ADRENO);
    523     formats[MDP_ARGB_8888] = STR(MDP_ARGB_8888);
    524     formats[MDP_RGB_888] = STR(MDP_RGB_888);
    525     formats[MDP_Y_CRCB_H2V2] = STR(MDP_Y_CRCB_H2V2);
    526     formats[MDP_YCBYCR_H2V1] = STR(MDP_YCBYCR_H2V1);
    527     formats[MDP_YCRYCB_H2V1] = STR(MDP_YCRYCB_H2V1);
    528     formats[MDP_CBYCRY_H2V1] = STR(MDP_CBYCRY_H2V1);
    529     formats[MDP_Y_CRCB_H2V1] = STR(MDP_Y_CRCB_H2V1);
    530     formats[MDP_Y_CBCR_H2V1] = STR(MDP_Y_CBCR_H2V1);
    531     formats[MDP_Y_CRCB_H1V2] = STR(MDP_Y_CRCB_H1V2);
    532     formats[MDP_Y_CBCR_H1V2] = STR(MDP_Y_CBCR_H1V2);
    533     formats[MDP_RGBA_8888] = STR(MDP_RGBA_8888);
    534     formats[MDP_BGRA_8888] = STR(MDP_BGRA_8888);
    535     formats[MDP_RGBX_8888] = STR(MDP_RGBX_8888);
    536     formats[MDP_Y_CRCB_H2V2_TILE] = STR(MDP_Y_CRCB_H2V2_TILE);
    537     formats[MDP_Y_CBCR_H2V2_TILE] = STR(MDP_Y_CBCR_H2V2_TILE);
    538     formats[MDP_Y_CR_CB_H2V2] = STR(MDP_Y_CR_CB_H2V2);
    539     formats[MDP_Y_CR_CB_GH2V2] = STR(MDP_Y_CR_CB_GH2V2);
    540     formats[MDP_Y_CB_CR_H2V2] = STR(MDP_Y_CB_CR_H2V2);
    541     formats[MDP_Y_CRCB_H1V1] = STR(MDP_Y_CRCB_H1V1);
    542     formats[MDP_Y_CBCR_H1V1] = STR(MDP_Y_CBCR_H1V1);
    543     formats[MDP_YCRCB_H1V1] = STR(MDP_YCRCB_H1V1);
    544     formats[MDP_YCBCR_H1V1] = STR(MDP_YCBCR_H1V1);
    545     formats[MDP_BGR_565] = STR(MDP_BGR_565);
    546     formats[MDP_BGR_888] = STR(MDP_BGR_888);
    547     formats[MDP_Y_CBCR_H2V2_VENUS] = STR(MDP_Y_CBCR_H2V2_VENUS);
    548     formats[MDP_BGRX_8888] = STR(MDP_BGRX_8888);
    549     formats[MDP_RGBA_8888_TILE] = STR(MDP_RGBA_8888_TILE);
    550     formats[MDP_ARGB_8888_TILE] = STR(MDP_ARGB_8888_TILE);
    551     formats[MDP_ABGR_8888_TILE] = STR(MDP_ABGR_8888_TILE);
    552     formats[MDP_BGRA_8888_TILE] = STR(MDP_BGRA_8888_TILE);
    553     formats[MDP_RGBX_8888_TILE] = STR(MDP_RGBX_8888_TILE);
    554     formats[MDP_XRGB_8888_TILE] = STR(MDP_XRGB_8888_TILE);
    555     formats[MDP_XBGR_8888_TILE] = STR(MDP_XBGR_8888_TILE);
    556     formats[MDP_BGRX_8888_TILE] = STR(MDP_BGRX_8888_TILE);
    557     formats[MDP_RGB_565_TILE] = STR(MDP_RGB_565_TILE);
    558     formats[MDP_IMGTYPE_LIMIT] = STR(MDP_IMGTYPE_LIMIT);
    559 
    560     if(format < 0 || format >= MDP_IMGTYPE_LIMIT) {
    561         ALOGE("%s wrong fmt %d", __FUNCTION__, format);
    562         return "Unsupported format";
    563     }
    564     if(formats[format] == 0) {
    565         ALOGE("%s: table missing format %d from header", __FUNCTION__, format);
    566         return "";
    567     }
    568     return formats[format];
    569 }
    570 
    571 inline void Whf::dump() const {
    572     ALOGE("== Dump WHF w=%d h=%d f=%d s=%d start/end ==",
    573             w, h, format, size);
    574 }
    575 
    576 inline void Dim::dump() const {
    577     ALOGE("== Dump Dim x=%d y=%d w=%d h=%d start/end ==", x, y, w, h);
    578 }
    579 
    580 // FB0
    581 template <int CHAN>
    582 inline Dim getPositionS3DImpl(const Whf& whf)
    583 {
    584     switch (whf.format & OUTPUT_3D_MASK)
    585     {
    586         case HAL_3D_OUT_SBS_MASK:
    587             // x, y, w, h
    588             return Dim(0, 0, whf.w/2, whf.h);
    589         case HAL_3D_OUT_TOP_BOT_MASK:
    590             return Dim(0, 0, whf.w, whf.h/2);
    591         case HAL_3D_OUT_MONOS_MASK:
    592             return Dim();
    593         case HAL_3D_OUT_INTERL_MASK:
    594             // FIXME error?
    595             ALOGE("%s HAL_3D_OUT_INTERLEAVE_MASK", __FUNCTION__);
    596             return Dim();
    597         default:
    598             ALOGE("%s Unsupported 3D output format %d", __FUNCTION__,
    599                     whf.format);
    600     }
    601     return Dim();
    602 }
    603 
    604 template <>
    605 inline Dim getPositionS3DImpl<utils::OV_RIGHT_SPLIT>(const Whf& whf)
    606 {
    607     switch (whf.format & OUTPUT_3D_MASK)
    608     {
    609         case HAL_3D_OUT_SBS_MASK:
    610             return Dim(whf.w/2, 0, whf.w/2, whf.h);
    611         case HAL_3D_OUT_TOP_BOT_MASK:
    612             return Dim(0, whf.h/2, whf.w, whf.h/2);
    613         case HAL_3D_OUT_MONOS_MASK:
    614             return Dim(0, 0, whf.w, whf.h);
    615         case HAL_3D_OUT_INTERL_MASK:
    616             // FIXME error?
    617             ALOGE("%s HAL_3D_OUT_INTERLEAVE_MASK", __FUNCTION__);
    618             return Dim();
    619         default:
    620             ALOGE("%s Unsupported 3D output format %d", __FUNCTION__,
    621                     whf.format);
    622     }
    623     return Dim();
    624 }
    625 
    626 template <int CHAN>
    627 inline bool getPositionS3D(const Whf& whf, Dim& out) {
    628     out = getPositionS3DImpl<CHAN>(whf);
    629     return (out != Dim());
    630 }
    631 
    632 template <int CHAN>
    633 inline Dim getCropS3DImpl(const Dim& in, uint32_t fmt) {
    634     switch (fmt & INPUT_3D_MASK)
    635     {
    636         case HAL_3D_IN_SIDE_BY_SIDE_L_R:
    637             return Dim(0, 0, in.w/2, in.h);
    638         case HAL_3D_IN_SIDE_BY_SIDE_R_L:
    639             return Dim(in.w/2, 0, in.w/2, in.h);
    640         case HAL_3D_IN_TOP_BOTTOM:
    641             return Dim(0, 0, in.w, in.h/2);
    642         case HAL_3D_IN_INTERLEAVE:
    643             ALOGE("%s HAL_3D_IN_INTERLEAVE", __FUNCTION__);
    644             break;
    645         default:
    646             ALOGE("%s Unsupported 3D format %d", __FUNCTION__, fmt);
    647             break;
    648     }
    649     return Dim();
    650 }
    651 
    652 template <>
    653 inline Dim getCropS3DImpl<utils::OV_RIGHT_SPLIT>(const Dim& in, uint32_t fmt) {
    654     switch (fmt & INPUT_3D_MASK)
    655     {
    656         case HAL_3D_IN_SIDE_BY_SIDE_L_R:
    657             return Dim(in.w/2, 0, in.w/2, in.h);
    658         case HAL_3D_IN_SIDE_BY_SIDE_R_L:
    659             return Dim(0, 0, in.w/2, in.h);
    660         case HAL_3D_IN_TOP_BOTTOM:
    661             return Dim(0, in.h/2, in.w, in.h/2);
    662         case HAL_3D_IN_INTERLEAVE:
    663             ALOGE("%s HAL_3D_IN_INTERLEAVE", __FUNCTION__);
    664             break;
    665         default:
    666             ALOGE("%s Unsupported 3D format %d", __FUNCTION__, fmt);
    667             break;
    668     }
    669     return Dim();
    670 }
    671 
    672 template <int CHAN>
    673 inline bool getCropS3D(const Dim& in, Dim& out, uint32_t fmt)
    674 {
    675     out = getCropS3DImpl<CHAN>(in, fmt);
    676     return (out != Dim());
    677 }
    678 
    679 template <class Type>
    680 void swapWidthHeight(Type& width, Type& height) {
    681     Type tmp = width;
    682     width = height;
    683     height = tmp;
    684 }
    685 
    686 inline void ScreenInfo::dump(const char* const s) const {
    687     ALOGE("== Dump %s ScreenInfo w=%d h=%d"
    688             " bpp=%d stride=%d start/end ==",
    689             s, mFBWidth, mFBHeight, mFBbpp, mFBystride);
    690 }
    691 
    692 inline bool openDev(OvFD& fd, int fbnum,
    693     const char* const devpath, int flags) {
    694     return overlay::open(fd, fbnum, devpath, flags);
    695 }
    696 
    697 template <class T>
    698 inline void even_ceil(T& value) {
    699     if(value & 1)
    700         value++;
    701 }
    702 
    703 template <class T>
    704 inline void even_floor(T& value) {
    705     if(value & 1)
    706         value--;
    707 }
    708 
    709 void preRotateSource(const eTransform& tr, Whf& whf, Dim& srcCrop);
    710 void getDump(char *buf, size_t len, const char *prefix, const mdp_overlay& ov);
    711 void getDump(char *buf, size_t len, const char *prefix, const msmfb_img& ov);
    712 void getDump(char *buf, size_t len, const char *prefix, const mdp_rect& ov);
    713 void getDump(char *buf, size_t len, const char *prefix,
    714         const msmfb_overlay_data& ov);
    715 void getDump(char *buf, size_t len, const char *prefix, const msmfb_data& ov);
    716 void getDump(char *buf, size_t len, const char *prefix,
    717         const msm_rotator_img_info& ov);
    718 void getDump(char *buf, size_t len, const char *prefix,
    719         const msm_rotator_data_info& ov);
    720 
    721 } // namespace utils ends
    722 
    723 //--------------------Class Res stuff (namespace overlay only) -----------
    724 
    725 class Res {
    726 public:
    727     // /dev/graphics/fb%u
    728     static const char* const fbPath;
    729     // /dev/msm_rotator
    730     static const char* const rotPath;
    731     // /sys/class/graphics/fb1/format_3d
    732     static const char* const format3DFile;
    733     // /sys/class/graphics/fb1/3d_present
    734     static const char* const edid3dInfoFile;
    735     // /sys/devices/platform/mipi_novatek.0/enable_3d_barrier
    736     static const char* const barrierFile;
    737 };
    738 
    739 
    740 //--------------------Class OvFD stuff (namespace overlay only) -----------
    741 
    742 /*
    743 * Holds one FD
    744 * Dtor will NOT close the underlying FD.
    745 * That enables us to copy that object around
    746 * */
    747 class OvFD {
    748 public:
    749     /* Ctor */
    750     explicit OvFD();
    751 
    752     /* dtor will NOT close the underlying FD */
    753     ~OvFD();
    754 
    755     /* Open fd using the path given by dev.
    756      * return false in failure */
    757     bool open(const char* const dev,
    758             int flags = O_RDWR);
    759 
    760     /* populate path */
    761     void setPath(const char* const dev);
    762 
    763     /* Close fd if we have a valid fd. */
    764     bool close();
    765 
    766     /* returns underlying fd.*/
    767     int getFD() const;
    768 
    769     /* returns true if fd is valid */
    770     bool valid() const;
    771 
    772     /* like operator= */
    773     void copy(int fd);
    774 
    775     /* dump the state of the instance */
    776     void dump() const;
    777 private:
    778     /* helper enum for determine valid/invalid fd */
    779     enum { INVAL = -1 };
    780 
    781     /* actual os fd */
    782     int mFD;
    783 
    784     /* path, for debugging */
    785     char mPath[utils::MAX_PATH_LEN];
    786 };
    787 
    788 //-------------------Inlines--------------------------
    789 
    790 inline bool open(OvFD& fd, uint32_t fbnum, const char* const dev, int flags)
    791 {
    792     char dev_name[64] = {0};
    793     snprintf(dev_name, sizeof(dev_name), dev, fbnum);
    794     return fd.open(dev_name, flags);
    795 }
    796 
    797 inline OvFD::OvFD() : mFD (INVAL) {
    798     mPath[0] = 0;
    799 }
    800 
    801 inline OvFD::~OvFD() {
    802     //no op since copy() can be used to share fd, in 3d cases.
    803 }
    804 
    805 inline bool OvFD::open(const char* const dev, int flags)
    806 {
    807     mFD = ::open(dev, flags, 0);
    808     if (mFD < 0) {
    809         // FIXME errno, strerror in bionic?
    810         ALOGE("Cant open device %s err=%d", dev, errno);
    811         return false;
    812     }
    813     setPath(dev);
    814     return true;
    815 }
    816 
    817 inline void OvFD::setPath(const char* const dev)
    818 {
    819     ::strlcpy(mPath, dev, sizeof(mPath));
    820 }
    821 
    822 inline bool OvFD::close()
    823 {
    824     int ret = 0;
    825     if(valid()) {
    826         ret = ::close(mFD);
    827         mFD = INVAL;
    828     }
    829     return (ret == 0);
    830 }
    831 
    832 inline bool OvFD::valid() const
    833 {
    834     return (mFD != INVAL);
    835 }
    836 
    837 inline int OvFD::getFD() const { return mFD; }
    838 
    839 inline void OvFD::copy(int fd) {
    840     mFD = fd;
    841 }
    842 
    843 inline void OvFD::dump() const
    844 {
    845     ALOGE("== Dump OvFD fd=%d path=%s start/end ==",
    846             mFD, mPath);
    847 }
    848 
    849 //--------------- class OvFD stuff ends ---------------------
    850 
    851 } // overlay
    852 
    853 
    854 #endif // OVERLAY_UTILS_H
    855