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_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_I420: 48 // for these two formats, chroma stride is calculated as half of luma stride 49 // so luma stride needs to be 128-byte aligned. 50 return 128; 51 default: 52 return 64; 53 } 54 } 55 56 uint32_t DisplayQuery::queryNV12Format() 57 { 58 return HAL_PIXEL_FORMAT_NV12; 59 } 60 61 bool DisplayQuery::forceFbScaling(int device) 62 { 63 // RGB planes don't support scaling. Panel fitter can be used to scale frame buffer to device's resolution 64 // if scaling factor is less than 1.5. Otherwise, GPU scaling is needed on RGB buffer, or hardware overlay 65 // scaling is needed on NV12 buffer 66 67 // this needs to work together with kernel driver. Panel fitter needs to be disabled if scaling factor is greater 68 // than 1.5 69 70 uint32_t width, height; 71 if (!Hwcomposer::getInstance().getDrm()->getDisplayResolution(device, width, height)) { 72 return false; 73 } 74 75 if (DEFAULT_DRM_FB_WIDTH / (float)width > 1.5) { 76 return true; 77 } 78 79 if (DEFAULT_DRM_FB_HEIGHT / (float)height > 1.5) { 80 return true; 81 } 82 83 return false; 84 } 85 86 } // namespace intel 87 } // namespace android 88 89
