#!/usr/bin/env python

libvpx_dir = "#thirdparty/libvpx/"

libvpx_sources = [
    "vp8/vp8_dx_iface.c",

    "vp8/common/generic/systemdependent.c",

    "vp8/common/alloccommon.c",
    "vp8/common/blockd.c",
    "vp8/common/copy_c.c",
    "vp8/common/debugmodes.c",
    "vp8/common/dequantize.c",
    "vp8/common/entropy.c",
    "vp8/common/entropymode.c",
    "vp8/common/entropymv.c",
    "vp8/common/extend.c",
    "vp8/common/filter.c",
    "vp8/common/findnearmv.c",
    "vp8/common/idct_blk.c",
    "vp8/common/idctllm.c",
    "vp8/common/loopfilter_filters.c",
    "vp8/common/mbpitch.c",
    "vp8/common/modecont.c",
    "vp8/common/quant_common.c",
    "vp8/common/reconinter.c",
    "vp8/common/reconintra.c",
    "vp8/common/reconintra4x4.c",
    "vp8/common/rtcd.c",
    "vp8/common/setupintrarecon.c",
    "vp8/common/swapyv12buffer.c",
    "vp8/common/treecoder.c",
    "vp8/common/vp8_loopfilter.c",

    "vp8/decoder/dboolhuff.c",
    "vp8/decoder/decodeframe.c",
    "vp8/decoder/decodemv.c",
    "vp8/decoder/detokenize.c",
    "vp8/decoder/onyxd_if.c",
    "vp8/decoder/threading.c",


    "vp9/vp9_dx_iface.c",

    "vp9/common/vp9_alloccommon.c",
    "vp9/common/vp9_blockd.c",
    "vp9/common/vp9_common_data.c",
    "vp9/common/vp9_debugmodes.c",
    "vp9/common/vp9_entropy.c",
    "vp9/common/vp9_entropymode.c",
    "vp9/common/vp9_entropymv.c",
    "vp9/common/vp9_filter.c",
    "vp9/common/vp9_frame_buffers.c",
    "vp9/common/vp9_idct.c",
    "vp9/common/vp9_loopfilter.c",
    "vp9/common/vp9_mvref_common.c",
    "vp9/common/vp9_pred_common.c",
    "vp9/common/vp9_quant_common.c",
    "vp9/common/vp9_reconinter.c",
    "vp9/common/vp9_reconintra.c",
    "vp9/common/vp9_rtcd.c",
    "vp9/common/vp9_scale.c",
    "vp9/common/vp9_scan.c",
    "vp9/common/vp9_seg_common.c",
    "vp9/common/vp9_thread_common.c",
    "vp9/common/vp9_tile_common.c",

    "vp9/decoder/vp9_decodeframe.c",
    "vp9/decoder/vp9_decodemv.c",
    "vp9/decoder/vp9_decoder.c",
    "vp9/decoder/vp9_detokenize.c",
    "vp9/decoder/vp9_dsubexp.c",
    "vp9/decoder/vp9_dthread.c",


    "vpx/src/vpx_codec.c",
    "vpx/src/vpx_decoder.c",
    "vpx/src/vpx_image.c",
    "vpx/src/vpx_psnr.c",


    "vpx_dsp/bitreader.c",
    "vpx_dsp/bitreader_buffer.c",
    "vpx_dsp/intrapred.c",
    "vpx_dsp/inv_txfm.c",
    "vpx_dsp/loopfilter.c",
    "vpx_dsp/prob.c",
    "vpx_dsp/vpx_convolve.c",
    "vpx_dsp/vpx_dsp_rtcd.c",


    "vpx_mem/vpx_mem.c",


    "vpx_scale/vpx_scale_rtcd.c",

    "vpx_scale/generic/yv12config.c",
    "vpx_scale/generic/yv12extend.c",


    "vpx_util/vpx_thread.c"
]

libvpx_sources_intrin_x86 = [
    "vp8/common/x86/filter_x86.c",
    "vp8/common/x86/loopfilter_x86.c",
    "vp8/common/x86/vp8_asm_stubs.c",


    "vpx_dsp/x86/vpx_asm_stubs.c"
]
libvpx_sources_intrin_x86_mmx = [
    "vp8/common/x86/idct_blk_mmx.c",
]
libvpx_sources_intrin_x86_sse2 = [
    "vp8/common/x86/idct_blk_sse2.c",


    "vp9/common/x86/vp9_idct_intrin_sse2.c",


    "vpx_dsp/x86/inv_txfm_sse2.c",
    "vpx_dsp/x86/loopfilter_sse2.c",
]
libvpx_sources_intrin_x86_ssse3 = [
    "vpx_dsp/x86/vpx_subpixel_8t_intrin_ssse3.c"
]
libvpx_sources_intrin_x86_avx2 = [
    "vpx_dsp/x86/loopfilter_avx2.c",
    "vpx_dsp/x86/vpx_subpixel_8t_intrin_avx2.c"
]
libvpx_sources_x86asm = [
    "vp8/common/x86/copy_sse2.asm",
    "vp8/common/x86/copy_sse3.asm",
    "vp8/common/x86/dequantize_mmx.asm",
    "vp8/common/x86/idctllm_mmx.asm",
    "vp8/common/x86/idctllm_sse2.asm",
    "vp8/common/x86/iwalsh_mmx.asm",
    "vp8/common/x86/iwalsh_sse2.asm",
    "vp8/common/x86/loopfilter_sse2.asm",
    "vp8/common/x86/recon_mmx.asm",
    "vp8/common/x86/recon_sse2.asm",
    "vp8/common/x86/subpixel_mmx.asm",
    "vp8/common/x86/subpixel_sse2.asm",
    "vp8/common/x86/subpixel_ssse3.asm",
    "vp8/common/x86/vp8_loopfilter_mmx.asm",


    "vpx_dsp/x86/intrapred_sse2.asm",
    "vpx_dsp/x86/intrapred_ssse3.asm",
    "vpx_dsp/x86/inv_wht_sse2.asm",
    "vpx_dsp/x86/vpx_convolve_copy_sse2.asm",
    "vpx_dsp/x86/vpx_subpixel_8t_sse2.asm",
    "vpx_dsp/x86/vpx_subpixel_8t_ssse3.asm",
    "vpx_dsp/x86/vpx_subpixel_bilinear_sse2.asm",
    "vpx_dsp/x86/vpx_subpixel_bilinear_ssse3.asm",


    "vpx_ports/emms.asm"
]
libvpx_sources_x86_64asm = [
    "vp8/common/x86/loopfilter_block_sse2_x86_64.asm",


    "vpx_dsp/x86/inv_txfm_ssse3_x86_64.asm"
]

libvpx_sources_arm = [
    "vpx_ports/arm_cpudetect.c",


    "vp8/common/arm/loopfilter_arm.c",
]
libvpx_sources_arm_neon = [
    "vp8/common/arm/neon/bilinearpredict_neon.c",
    "vp8/common/arm/neon/copymem_neon.c",
    "vp8/common/arm/neon/dc_only_idct_add_neon.c",
    "vp8/common/arm/neon/dequant_idct_neon.c",
    "vp8/common/arm/neon/dequantizeb_neon.c",
    "vp8/common/arm/neon/idct_blk_neon.c",
    "vp8/common/arm/neon/idct_dequant_0_2x_neon.c",
    "vp8/common/arm/neon/idct_dequant_full_2x_neon.c",
    "vp8/common/arm/neon/iwalsh_neon.c",
    "vp8/common/arm/neon/loopfiltersimplehorizontaledge_neon.c",
    "vp8/common/arm/neon/loopfiltersimpleverticaledge_neon.c",
    "vp8/common/arm/neon/mbloopfilter_neon.c",
    "vp8/common/arm/neon/shortidct4x4llm_neon.c",
    "vp8/common/arm/neon/sixtappredict_neon.c",
    "vp8/common/arm/neon/vp8_loopfilter_neon.c",


    "vp9/common/arm/neon/vp9_iht4x4_add_neon.c",
    "vp9/common/arm/neon/vp9_iht8x8_add_neon.c",


    "vpx_dsp/arm/idct16x16_1_add_neon.c",
    "vpx_dsp/arm/idct16x16_add_neon.c",
    "vpx_dsp/arm/idct16x16_neon.c",
    "vpx_dsp/arm/idct32x32_1_add_neon.c",
    "vpx_dsp/arm/idct32x32_add_neon.c",
    "vpx_dsp/arm/idct4x4_1_add_neon.c",
    "vpx_dsp/arm/idct4x4_add_neon.c",
    "vpx_dsp/arm/idct8x8_1_add_neon.c",
    "vpx_dsp/arm/idct8x8_add_neon.c",
    "vpx_dsp/arm/intrapred_neon.c",
    "vpx_dsp/arm/loopfilter_16_neon.c",
    "vpx_dsp/arm/loopfilter_4_neon.c",
    "vpx_dsp/arm/loopfilter_8_neon.c",
    "vpx_dsp/arm/loopfilter_neon.c",
    "vpx_dsp/arm/vpx_convolve8_avg_neon.c",
    "vpx_dsp/arm/vpx_convolve8_neon.c",
    "vpx_dsp/arm/vpx_convolve_avg_neon.c",
    "vpx_dsp/arm/vpx_convolve_copy_neon.c",
    "vpx_dsp/arm/vpx_convolve_neon.c"
]
libvpx_sources_arm_neon_gas = [
    "vpx_dsp/arm/gas/intrapred_neon_asm.s",
    "vpx_dsp/arm/gas/loopfilter_mb_neon.s",
    "vpx_dsp/arm/gas/save_reg_neon.s"
]
libvpx_sources_arm_neon_armasm_ms = [
    "vpx_dsp/arm/armasm_ms/intrapred_neon_asm.asm",
    "vpx_dsp/arm/armasm_ms/loopfilter_mb_neon.asm",
    "vpx_dsp/arm/armasm_ms/save_reg_neon.asm"
]
libvpx_sources_arm_neon_gas_apple = [
    "vpx_dsp/arm/gas_apple/intrapred_neon_asm.s",
    "vpx_dsp/arm/gas_apple/loopfilter_mb_neon.s",
    "vpx_dsp/arm/gas_apple/save_reg_neon.s"
]

libvpx_sources = [libvpx_dir + file for file in libvpx_sources]
libvpx_sources_intrin_x86 = [libvpx_dir + file for file in libvpx_sources_intrin_x86]
libvpx_sources_intrin_x86_mmx = [libvpx_dir + file for file in libvpx_sources_intrin_x86_mmx]
libvpx_sources_intrin_x86_sse2 = [libvpx_dir + file for file in libvpx_sources_intrin_x86_sse2]
libvpx_sources_intrin_x86_ssse3 = [libvpx_dir + file for file in libvpx_sources_intrin_x86_ssse3]
libvpx_sources_intrin_x86_avx2 = [libvpx_dir + file for file in libvpx_sources_intrin_x86_avx2]
libvpx_sources_x86asm = [libvpx_dir + file for file in libvpx_sources_x86asm]
libvpx_sources_x86_64asm = [libvpx_dir + file for file in libvpx_sources_x86_64asm]
libvpx_sources_arm = [libvpx_dir + file for file in libvpx_sources_arm]
libvpx_sources_arm_neon = [libvpx_dir + file for file in libvpx_sources_arm_neon]
libvpx_sources_arm_neon_gas = [libvpx_dir + file for file in libvpx_sources_arm_neon_gas]
libvpx_sources_arm_neon_armasm_ms = [libvpx_dir + file for file in libvpx_sources_arm_neon_armasm_ms]
libvpx_sources_arm_neon_gas_apple = [libvpx_dir + file for file in libvpx_sources_arm_neon_gas_apple]


Import('env')
Import('env_webm')

env_webm.Append(CPPPATH=[libvpx_dir])

env_libvpx = env.Clone()
env_libvpx.Append(CPPPATH=[libvpx_dir])

cpu_bits = env["bits"]
osx_fat = (env["platform"] == 'osx' and cpu_bits == 'fat')
webm_cpu_x86 = False
webm_cpu_arm = False
if env["platform"] == 'uwp':
    if 'arm' in env["PROGSUFFIX"]:
        webm_cpu_arm = True
    else:
        webm_cpu_x86 = True
else:
    import platform
    is_x11_or_server_arm = ((env["platform"] == 'x11' or env["platform"] == 'server') and platform.machine().startswith('arm'))
    is_ios_x86 = (env["platform"] == 'iphone' and env["ios_sim"])
    is_android_x86 = (env["platform"] == 'android' and env["android_arch"] == 'x86')
    if is_android_x86:
        cpu_bits = '32'
    if osx_fat:
        webm_cpu_x86 = True
    else:
        webm_cpu_x86 = not is_x11_or_server_arm and (cpu_bits == '32' or cpu_bits == '64') and (env["platform"] == 'windows' or env["platform"] == 'x11' or env["platform"] == 'osx' or env["platform"] == 'haiku' or is_android_x86 or is_ios_x86)
        webm_cpu_arm = is_x11_or_server_arm or (not is_ios_x86 and env["platform"] == 'iphone') or (not is_android_x86 and env["platform"] == 'android')

if webm_cpu_x86:
    import subprocess
    import os

    yasm_paths = [
        "yasm",
        "../../../yasm",
    ]

    yasm_found = False

    devnull = open(os.devnull)
    for yasm_path in yasm_paths:
        try:
            yasm_found = True
            subprocess.Popen([yasm_path, "--version"], stdout=devnull, stderr=devnull).communicate()
        except:
            yasm_found = False
        if yasm_found:
            break

    if not yasm_found:
        webm_cpu_x86 = False
        print("YASM is necessary for WebM SIMD optimizations.")

webm_simd_optimizations = False

if webm_cpu_x86:
    if osx_fat:
        #'osx' platform only: run python script which will compile using 'yasm' command and then merge 32-bit and 64-bit using 'lipo' command
        env_libvpx["AS"] = 'python modules/webm/libvpx/yasm_osx_fat.py'
        env_libvpx["ASFLAGS"] = '-I' + libvpx_dir[1:]
        env_libvpx["ASCOM"] = '$AS $ASFLAGS $TARGET $SOURCES'
    else:
        if env["platform"] == 'windows' or env["platform"] == 'uwp':
            env_libvpx["ASFORMAT"] = 'win'
        elif env["platform"] == 'osx' or env["platform"] == "iphone":
            env_libvpx["ASFORMAT"] = 'macho'
        else:
            env_libvpx["ASFORMAT"] = 'elf'
        env_libvpx["ASFORMAT"] += cpu_bits

        env_libvpx["AS"] = 'yasm'
        env_libvpx["ASFLAGS"] = '-I' + libvpx_dir[1:] + ' -f $ASFORMAT -D $ASCPU'
        env_libvpx["ASCOM"] = '$AS $ASFLAGS -o $TARGET $SOURCES'

        if cpu_bits == '32':
            env_libvpx["ASCPU"] = 'X86_32'
        elif cpu_bits == '64':
            env_libvpx["ASCPU"] = 'X86_64'

    env_libvpx.Append(CCFLAGS=['-DWEBM_X86ASM'])

    webm_simd_optimizations = True

if webm_cpu_arm:
    if env["platform"] == 'iphone':
        env_libvpx["ASFLAGS"] = '-arch armv7'
    elif env["platform"] == 'android' or env["platform"] == 'x11' or env["platform"] == 'server':
        env_libvpx["ASFLAGS"] = '-mfpu=neon'
    elif env["platform"] == 'uwp':
        env_libvpx["AS"] = 'armasm'
        env_libvpx["ASFLAGS"] = ''
        env_libvpx["ASCOM"] = '$AS $ASFLAGS -o $TARGET $SOURCES'

    env_libvpx.Append(CCFLAGS=['-DWEBM_ARMASM'])

    webm_simd_optimizations = True

if webm_simd_optimizations == False:
    print("WebM SIMD optimizations are disabled. Check if your CPU architecture, CPU bits or platform are supported!")


env_libvpx.add_source_files(env.modules_sources, libvpx_sources)
if webm_cpu_x86:
    is_clang_or_gcc = ('gcc' in env["CC"]) or ('clang' in env["CC"])

    env_libvpx_mmx = env_libvpx.Clone()
    if cpu_bits == '32' and is_clang_or_gcc:
        env_libvpx_mmx.Append(CCFLAGS=['-mmmx'])
    env_libvpx_mmx.add_source_files(env.modules_sources, libvpx_sources_intrin_x86_mmx)

    env_libvpx_sse2 = env_libvpx.Clone()
    if cpu_bits == '32' and is_clang_or_gcc:
        env_libvpx_sse2.Append(CCFLAGS=['-msse2'])
    env_libvpx_sse2.add_source_files(env.modules_sources, libvpx_sources_intrin_x86_sse2)

    env_libvpx_ssse3 = env_libvpx.Clone()
    if is_clang_or_gcc:
        env_libvpx_ssse3.Append(CCFLAGS=['-mssse3'])
    env_libvpx_ssse3.add_source_files(env.modules_sources, libvpx_sources_intrin_x86_ssse3)

    env_libvpx_avx2 = env_libvpx.Clone()
    if is_clang_or_gcc:
        env_libvpx_avx2.Append(CCFLAGS=['-mavx2'])
    env_libvpx_avx2.add_source_files(env.modules_sources, libvpx_sources_intrin_x86_avx2)

    env_libvpx.add_source_files(env.modules_sources, libvpx_sources_intrin_x86)

    env_libvpx.add_source_files(env.modules_sources, libvpx_sources_x86asm)
    if cpu_bits == '64' or osx_fat:
        env_libvpx.add_source_files(env.modules_sources, libvpx_sources_x86_64asm)
elif webm_cpu_arm:
    env_libvpx.add_source_files(env.modules_sources, libvpx_sources_arm)

    env_libvpx_neon = env_libvpx.Clone()
    if env["platform"] == 'android' and env["android_arch"] == 'armv6':
        env_libvpx_neon.Append(CCFLAGS=['-mfpu=neon'])
    env_libvpx_neon.add_source_files(env.modules_sources, libvpx_sources_arm_neon)

    if env["platform"] == 'uwp':
        env_libvpx.add_source_files(env.modules_sources, libvpx_sources_arm_neon_armasm_ms)
    elif env["platform"] == 'iphone':
        env_libvpx.add_source_files(env.modules_sources, libvpx_sources_arm_neon_gas_apple)
    else:
        env_libvpx.add_source_files(env.modules_sources, libvpx_sources_arm_neon_gas)