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      1 # Copyright 2014 The Chromium Authors. All rights reserved.
      2 # Use of this source code is governed by a BSD-style license that can be
      3 # found in the LICENSE file.
      4 
      5 import("//build/config/arm.gni")
      6 
      7 # If fixed point implementation shall be used (otherwise float).
      8 use_opus_fixed_point = ((is_android || is_chromeos ||
      9                          (is_ios && arm_version == 7)) && cpu_arch == "arm")
     10 
     11 # If ARM optimizations shall be used to accelerate performance.
     12 use_opus_arm_optimization = use_opus_fixed_point
     13 
     14 # If OPUS Run Time CPU Detections (RTCD) shall be used.
     15 use_opus_rtcd = ((is_android || is_chromeos) && cpu_arch == "arm")
     16 
     17 config("opus_config") {
     18   include_dirs = [
     19     "src/include",
     20   ]
     21 }
     22 
     23 if (use_opus_rtcd) {
     24   action("convert_rtcd_assembler") {
     25     script = "convert_rtcd_assembler.py"
     26     outputs = [ "$target_gen_dir/celt_pitch_xcorr_arm_gnu.S" ]
     27     args = [
     28       rebase_path("//third_party/opus/src/celt/arm/arm2gnu.pl",
     29                   root_build_dir),
     30       rebase_path("//third_party/opus/src/celt/arm/celt_pitch_xcorr_arm.s",
     31                   root_build_dir),
     32       rebase_path("$target_gen_dir/celt_pitch_xcorr_arm_gnu.S",
     33                   root_build_dir),
     34     ]
     35   }
     36 }
     37 
     38 source_set("opus") {
     39   gypi_values = exec_script(
     40       "//build/gypi_to_gn.py",
     41       [ rebase_path("opus_srcs.gypi") ],
     42       "scope",
     43       [ "opus_srcs.gypi" ])
     44   sources = gypi_values.opus_common_sources
     45 
     46   defines = [
     47     "OPUS_BUILD",
     48     "OPUS_EXPORT=",
     49   ]
     50 
     51   include_dirs = [
     52     "src/celt",
     53     "src/silk",
     54   ]
     55 
     56   configs -= [ "//build/config/compiler:chromium_code" ]
     57   configs += [ "//build/config/compiler:no_chromium_code" ]
     58   public_configs = [ ":opus_config" ]
     59 
     60   if (is_win) {
     61     defines += [
     62       "USE_ALLOCA",
     63       "inline=__inline",
     64     ]
     65 
     66     cflags = [
     67       "/wd4305",  # Disable truncation warning in celt/pitch.c .
     68       "/wd4334",  # Disable 32-bit shift warning in src/opus_encoder.c .
     69     ]
     70   } else {
     71     defines += [
     72       "HAVE_LRINT",
     73       "HAVE_LRINTF",
     74       "VAR_ARRAYS",
     75     ]
     76   }
     77 
     78   if (is_posix && !is_android) {
     79     # Suppress a warning given by opus_decoder.c that tells us
     80     # optimizations are turned off.
     81     cflags = [
     82       "-Wno-#pragma-messages",
     83     ]
     84   }
     85 
     86   if (use_opus_fixed_point) {
     87     sources += gypi_values.opus_fixed_sources
     88 
     89     defines += [ "FIXED_POINT" ]
     90 
     91     include_dirs += [
     92       "src/silk/fixed",
     93     ]
     94   } else {
     95     sources += gypi_values.opus_float_sources
     96 
     97     include_dirs += [
     98       "src/silk/float",
     99     ]
    100   }
    101 
    102   if (use_opus_arm_optimization) {
    103     sources += [
    104       "src/celt/arm/fixed_armv4.h",
    105       "src/celt/arm/fixed_armv5e.h",
    106       "src/celt/arm/kiss_fft_armv4.h",
    107       "src/celt/arm/kiss_fft_armv5e.h",
    108       "src/celt/pitch_arm.h",
    109       "src/silk/arm/macro_armv4.h",
    110       "src/silk/arm/macro_armv5e.h",
    111       "src/silk/arm/SigProc_FIX_armv4.h",
    112       "src/silk/arm/SigProc_FIX_armv5e.h",
    113     ]
    114 
    115     defines += [
    116       "OPUS_ARM_ASM",
    117       "OPUS_ARM_INLINE_ASM",
    118       "OPUS_ARM_INLINE_EDSP",
    119     ]
    120 
    121     if (use_opus_rtcd) {
    122       sources += [
    123         "src/celt/arm/arm_celt_map.c",
    124         "src/celt/arm/armcpu.c",
    125         "src/celt/arm/armcpu.h",
    126         "$target_gen_dir/celt_pitch_xcorr_arm_gnu.S",
    127       ]
    128 
    129       defines += [
    130         "OPUS_ARM_MAY_HAVE_EDSP",
    131         "OPUS_ARM_MAY_HAVE_MEDIA",
    132         "OPUS_ARM_MAY_HAVE_NEON",
    133         "OPUS_HAVE_RTCD",
    134       ]
    135 
    136       deps = [ ":convert_rtcd_assembler" ]
    137     }
    138   }
    139 }
    140 
    141 executable("opus_demo") {
    142   sources = [
    143     "src/src/opus_demo.c",
    144   ]
    145 
    146   configs -= [ "//build/config/compiler:chromium_code" ]
    147   configs += [ "//build/config/compiler:no_chromium_code" ]
    148 
    149   include_dirs = [
    150     "src/celt",
    151     "src/silk",
    152   ]
    153 
    154   if (is_win) {
    155     defines = [ "inline=__inline" ]
    156   }
    157   if (is_android) {
    158     libs = [ "log" ]
    159   }
    160   if (is_clang) {
    161     cflags = [ "-Wno-absolute-value" ]
    162   }
    163 
    164   deps = [ ":opus" ]
    165 }
    166