Convert CamelCase names to underscore_names.

Convert CamelCase names to underscore_names.

s/sizeRI/size_ri/g;
s/numRI/num_ri/g;
s/RepeatNone/REPEAT_NONE/g;
s/fbOver/over/g;
s/fbIn/in/g;
s/iSrc/src_image/g;
s/iMask/mask_image/g;
s/iDst/dest_image/g;
s/SaDa/Sa.Da/g;
s/FbMaskBits/MASK_BITS/g;
s/RenderSamplesX/RENDER_SAMPLES_X/g;
s/MMXData/mmx_data_t/g;
s/RegionInfo/region_info_t/g;

s/([^0x])([a-z])([A-Z])/$1$2_\l$3/g;
s/([^0x])([A-Z])([A-Z])([a-z])/$1$2_\l$3$4/g;
s/([^0x])([A-Z])([a-z]+)_([a-z])/$1\l$2$3_$4/g;
s/([a-z])_([A-Z])/$1_\l$2/g;

s/su_sE/SuSE/g;
s/X_Free86/XFree86/g;
s/X_free86/XFree86/g;

s/_ULL/ULL/g;
s/_uLL/ULL/g;

s/U_nc/UNc/g;
s/combine ##/combine_ ##/g;
s/## U/## _u/g;
s/## C/## _c/g;
s/UNc_aDD/UNc_ADD/g;

s/BLEND_MODE \((.+)\)/BLEND_MODE (\l$1)/g;
s/blend_(.+)/blend_\l$1/g;

s/AN_ds/ANDs/g;
s/O_rs/ORs/g;
s/over565/over_565/g;
s/8pix/8_pix/g;
s/Over565/over_565/g;
s/inU/in_u/g;
s/inPart/in_part/g;
s/inC/in_c/g;
s/inreverse/in_reverse/g;
s/get_exception_code/GetExceptionCode/g; # GetExceptionCode is WinCE API
s/CP_us/CPUs/g;
s/authentic_aMD/AuthenticAMD/g;
s/op_sR_cx_mAS_kx_dST/op_src_mask_dest/g;
s/no_VERBOSE/noVERBOSE/g;
s/mc_cormack/McCormack/g;
s/r1band/r1_band/g;
s/r2band/r2_band/g;
s/as GOOD things/as good things/g;
s/brokendata/broken_data/g;
s/X_render/XRender/g;
s/__open_bSD__/__OpenBSD__/g;
s/^Quick/quick/g;
s/NextRect/next_rect/g;
s/RectIn/rect_in/g;
s/pboxout/pbox_out/g;
s/F_sorted/FSorted/g;
s/usse2/u_sse2/g;
s/csse2/c_sse2/g;
s/cPixelsse2/c_pixel_sse2/g;
s/Mask565/mask_565/g;
s/565fix_rB/565_fix_rb/g;
s/565fix_g/565_fix_g/g;
s/565r/565_r/g;
s/565g/565_g/g;
s/565b/565_b/g;
s/uPixelsse2/u_pixel_sse2/g;
s/Mask00ff/mask_00ff/g;
s/Mask0080/mask_0080/g;
s/Mask0101/mask_0101/g;
s/Maskffff/mask_ffff/g;
s/Maskff000000/mask_ff000000/g;
s/load128Aligned/load_128_aligned/g;
s/load128Unaligned/load_128_unaligned/g;
s/save128Aligned/save_128_aligned/g;
s/save128Unaligned/save_128_unaligned/g;
s/fillsse2/fill_sse2/g;
s/unpack565/unpack_565/g;
s/pack565/pack_565/g;
s/bltsse2/blt_sse2/g;
s/x565Unpack/x565_unpack/g;
s/r1End/r1_end/g;
s/r2End/r2_end/g;
s/argb8Pixels/argb8_pixels/g;