config_host/config_skia.h.in

   1 /*
   2
   3 Settings for the Skia library. We compile the Skia library with these
   4 settings and also LO code uses this header to ensure the settings
   5 are the same.
   6 */
   7
   8 #ifndef CONFIG_SKIA_H
   9 #define CONFIG_SKIA_H
  10
  11 // This is a setting that should be set manually and it affects LO
  12 // code rather than Skia itself. It basically controls setting
  13 // BackendCapabilities::mbSupportsBitmap32, i.e. whether one LO bitmap
  14 // contains all the 32bits of an image including the alpha (premultiplied).
  15 //
  16 // Since Skia does not natively support 24bpp, the preferred setup is
  17 // that the setting should be enabled, it makes the code faster and cleaner.
  18 //
  19 // Unfortunately VCL historically splits alpha into a whole separate
  20 // bitmap and works with 24bpp+8bpp, which is generally more complicated,
  21 // more error-prone and just worse, but that's how LO code has been
  22 // written and so there are many places in LO that expect this and
  23 // do not work correctly with true 32bpp bitmaps.
  24 //
  25 // So ultimately the 24+8 split should be dumped (preferably in all of LO,
  26 // not just the Skia-related code), but until all of LO works correctly
  27 // with 32bpp keep this disabled in order to avoid such breakages.
  28
  29 //#define SKIA_USE_BITMAP32 1
  30 #define SKIA_USE_BITMAP32 0
  31
  32
  33 // GPU support (set by configure).
  34 #undef SK_GANESH
  35 // Vulkan support enabled (set by configure).
  36 #undef SK_VULKAN
  37 // Metal support enabled (set by configure).
  38 #undef SK_METAL
  39
  40 // Memory allocator for Vulkan.
  41 #define SK_USE_VMA 1
  42
  43 #define SK_CODEC_DECODES_PNG 1
  44 #define SK_ENCODE_PNG 1
  45
  46 // These are just to avoid warnings (some headers use them even with GL disabled).
  47 #define SK_ASSUME_GL 1
  48 #define SK_ASSUME_GL_ES 0
  49
  50 #define SK_ENABLE_SKSL 1
  51
  52 // See https://codereview.chromium.org/2089583002 . This makes raster drawing
  53 // faster in some cases, it was made conditional because of some tests failing,
  54 // but if I'm reading the review correctly the code is in fact fine and just
  55 // those tests needed updating, which presumably has never happened.
  56 #define SK_DRAWBITMAPRECT_FAST_OFFSET 1
  57
  58 // Default to BGRA. Skia already defaults to that on Windows, and it seems
  59 // the default X11 visual is actually also BGRA.
  60 #define SK_R32_SHIFT 16
  61
  62 // Enable Skia's internal checks depending on DBG_UTIL mode.
  63 // ENABLE_SKIA_DEBUG controls whether to build with or without optimizations, and
  64 // is set by using --enable-skia=debug.
  65 #ifdef DBG_UTIL
  66
  67 #define SK_DEBUG
  68
  69 #define SK_ENABLE_DUMP_GPU
  70
  71 #else
  72
  73 #define SK_RELEASE
  74
  75 #endif // DBG_UTIL
  76
  77 // TODO ?
  78 //#define SK_R32_SHIFT 16
  79
  80 #endif