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      1 /*
      2 // Copyright(c)2014 IntelCorporation
      3 //
      4 // LicensedundertheApacheLicense,Version2.0(the"License");
      5 // youmaynotusethisfileexceptincompliancewiththeLicense.
      6 // YoumayobtainacopyoftheLicenseat
      7 //
      8 // http://www.apache.org/licenses/LICENSE-2.0
      9 //
     10 // Unlessrequiredbyapplicablelaworagreedtoinwriting,software
     11 // distributedundertheLicenseisdistributedonan"ASIS"BASIS,
     12 // WITHOUTWARRANTIESORCONDITIONSOFANYKIND,eitherexpressorimplied.
     13 // SeetheLicenseforthespecificlanguagegoverningpermissionsand
     14 // limitationsundertheLicense.
     15 */
     16 
     17 #include <common/utils/HwcTrace.h>
     18 #include <DisplayPlane.h>
     19 #include <hal_public.h>
     20 #include <DisplayQuery.h>
     21 #include <khronos/openmax/OMX_IntelVideoExt.h>
     22 #include <Hwcomposer.h>
     23 
     24 
     25 namespace android {
     26 namespace intel {
     27 
     28 bool DisplayQuery::isVideoFormat(uint32_t format)
     29 {
     30     switch (format) {
     31     case OMX_INTEL_COLOR_FormatYUV420PackedSemiPlanar:
     32     case OMX_INTEL_COLOR_FormatYUV420PackedSemiPlanar_Tiled:
     33     // Expand format to support the case: Software decoder + HW rendering
     34     // Only VP9 use this foramt now
     35     case HAL_PIXEL_FORMAT_INTEL_YV12:
     36         return true;
     37     default:
     38         return false;
     39     }
     40 }
     41 
     42 int DisplayQuery::getOverlayLumaStrideAlignment(uint32_t format)
     43 {
     44     // both luma and chroma stride need to be 64-byte aligned for overlay
     45     switch (format) {
     46     case HAL_PIXEL_FORMAT_YV12:
     47     case HAL_PIXEL_FORMAT_INTEL_YV12:
     48     case HAL_PIXEL_FORMAT_I420:
     49         // for these two formats, chroma stride is calculated as half of luma stride
     50         // so luma stride needs to be 128-byte aligned.
     51         return 128;
     52     default:
     53         return 64;
     54     }
     55 }
     56 
     57 uint32_t DisplayQuery::queryNV12Format()
     58 {
     59     return HAL_PIXEL_FORMAT_NV12;
     60 }
     61 
     62 bool DisplayQuery::forceFbScaling(int device)
     63 {
     64     // RGB planes don't support scaling. Panel fitter can be used to scale frame buffer to device's resolution
     65     // if scaling factor is less than 1.5. Otherwise, GPU scaling is needed on RGB buffer, or hardware overlay
     66     // scaling is needed on NV12 buffer
     67 
     68     // this needs to work together with kernel driver. Panel fitter needs to be disabled if scaling factor is greater
     69     // than 1.5
     70 
     71     uint32_t width, height;
     72     if (!Hwcomposer::getInstance().getDrm()->getDisplayResolution(device, width, height)) {
     73         return false;
     74     }
     75 
     76     if (DEFAULT_DRM_FB_WIDTH / (float)width > 1.5) {
     77         return true;
     78     }
     79 
     80     if (DEFAULT_DRM_FB_HEIGHT / (float)height > 1.5) {
     81         return true;
     82     }
     83 
     84     return false;
     85 }
     86 
     87 } // namespace intel
     88 } // namespace android
     89 
     90