mirror of
https://github.com/vsariola/sointu.git
synced 2025-05-28 03:10:24 -04:00
607e5b5da0
Specifically: * Added win32, elf32 and elf64 asm player and wav writers using winmm. * Added dsound player in C. * Separated the ALL target and the examples; introduced a new examples target.
92 lines
1.8 KiB
NASM
92 lines
1.8 KiB
NASM
%include TRACK_INCLUDE
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%define WAVE_FORMAT_PCM 0x1
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%define WAVE_FORMAT_IEEE_FLOAT 0x3
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section .bss
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sound_buffer:
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resb SU_LENGTH_IN_SAMPLES * SU_SAMPLE_SIZE * SU_CHANNEL_COUNT
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file:
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resq 1
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section .data
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; Change the filename over -DFILENAME="yourfilename.wav"
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filename:
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db FILENAME, 0
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format:
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db "wb", 0
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; This is the wave file header.
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wave_file:
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db "RIFF"
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dd wave_file_end + SU_LENGTH_IN_SAMPLES * SU_SAMPLE_SIZE * SU_CHANNEL_COUNT - wave_file
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db "WAVE"
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db "fmt "
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wave_format_end:
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dd wave_format_end - wave_file
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%ifdef SU_SAMPLE_FLOAT
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dw WAVE_FORMAT_IEEE_FLOAT
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%else ; SU_SAMPLE_FLOAT
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dw WAVE_FORMAT_PCM
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%endif ; SU_SAMPLE_FLOAT
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dw SU_CHANNEL_COUNT
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dd SU_SAMPLE_RATE
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dd SU_SAMPLE_SIZE * SU_SAMPLE_RATE * SU_CHANNEL_COUNT
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dw SU_SAMPLE_SIZE * SU_CHANNEL_COUNT
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dw SU_SAMPLE_SIZE * 8
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wave_header_end:
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db "data"
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dd wave_file_end + SU_LENGTH_IN_SAMPLES * SU_SAMPLE_SIZE * SU_CHANNEL_COUNT - wave_header_end
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wave_file_end:
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section .text
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symbols:
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extern fopen
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extern fwrite
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extern fclose
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global main
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main:
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; elf32 uses the cdecl calling convention. This is more readable imo ;)
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; Prologue
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push rbp
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mov rbp, rsp
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sub rsp, 0x10
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; Unix does not have gm.dls, no need to ifdef and setup here.
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; We render the complete track here.
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mov rdi, sound_buffer
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call su_render_song
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; Now we open the file and save the track.
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mov rsi, format
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mov rdi, filename
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call fopen
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mov qword [file], rax
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; Write header
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mov rcx, qword [file]
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mov rdx, 0x1
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mov rsi, wave_file_end - wave_file
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mov rdi, wave_file
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call fwrite
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; write data
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mov rcx, qword [file]
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mov rdx, 0x1
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mov rsi, SU_LENGTH_IN_SAMPLES * SU_SAMPLE_SIZE * SU_CHANNEL_COUNT
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mov rdi, sound_buffer
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call fwrite
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mov rdi, qword [file]
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call fclose
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exit:
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; At least we can skip the epilogue :)
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leave
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ret
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