feature-comparison.md

Feature Comparison with JSFX

JSFX Reference: https://www.reaper.fm/sdk/js/js.php

Find the JS2EEL type declarations here. The API Docs are created from that file, as well as the code completion.

✅: Implemented

🕒: Should be implemented

❌: Won't be implemented

❔: Unknown if feasible, useful, or working properly

Description Lines and Utility Features

Status	Feature	Comment
✅	desc	Implemented as part of config()
🕒	tags
🕒	options
🕒	JSFX comments

Code Sections

Status	Feature	Comment
✅	@init	onInit()
✅	@slider	onSlider()
🕒	@block
✅	@sample	onSample()
🕒	@serialize
🕒	@gfx	Declarative with React-like syntax?

File Handling

Status	Feature	Comment
🕒	import
🕒	filename
🕒	file_open(index | slider)
🕒	file_close(handle)
🕒	file_rewind(handle)
🕒	file_var(handle, variable)
🕒	file_mem(handle, offset, length)
🕒	file_avail(handle)
🕒	file_riff(handle, nch, samplerate)
🕒	file_text(handle, istext)
🕒	file_string(handle,str)

Routing and Input

Status	Feature	Comment
✅	in_pin, out_pin	Implemented as part of config()

UI

Status	Feature	Comment
✅	Slider: Normal	slider()
✅	Slider: Select	selectBox()
🕒	Slider: File
🕒	Hidden sliders
🕒	Slider: shapes
❌	slider(index)	Might not be necessary as every slider is bound to a variable
🕒	slider_next_chg(sliderindex,nextval)

Sample Access

Status	Feature	Comment
✅	spl0 - spl63
✅	spl(index)

Audio and Transport State Vars

Status	Feature	Comment
✅	srate
✅	num_ch
✅	samplesblock
✅	tempo
✅	play_state
✅	play_position
✅	beat_position
✅	ts_num
✅	ts_denom

Data Structures and Encodings

Status	Feature	Comment
✅	Local variables	let & const
✅	Local address space (buffers)	EelBuffer (equivalent to JSFX buffers) & EelArray (inlined)
❔	Local address space 8m word restriction
🕒	Global address space (gmem[])
🕒	Named global address space
❔	Global named variables (_global. prefix)
🕒	Hex numbers
🕒	ASCII chars
🕒	Bitmasks
❔	Strings	Already fully implemented?

Control Structures

Status	Feature	Comment
✅	Functions	User definable functions are inlined in compiled code
✅	Conditionals
✅	Conditional Branching
🕒	loop(counter, actions...)	We should have generic loops even if sample- and channel related iterations should be handled by eachChannel()
🕒	while(actions..., condition)
🕒	while(condition) (actions...)

Operators

Status	Feature	Comment
✅	!value
✅	-value
✅	+value
✅	base ^ exponent	Math.pow(base, exponent) or **
✅	numerator % denominator
✅	value / divisor
✅	value * another_value
✅	value - another_value
✅	value + another_value
❌	value1 == value2	Has a tolerance of 0.00001. We only allow ===
✅	value1 === value2
❌	value1 != value2	Has a tolerance of 0.00001. We only allow ===
✅	value1 !== value2
✅	value1 < value2
✅	value1 > value2
✅	value1 <= value2
✅	value1 >= value2
✅	y || z
✅	y && z
✅	y ? z
✅	y ? z : x
✅	y = z
✅	y *= z
✅	y /= divisor
✅	y %= divisor
🕒	base ^= exponent	Should be implemented as JavaScript's **=
✅	y += z
✅	y -= z

Bitwise operators

Status	Feature	Comment
🕒	value << shift_amt
🕒	value >> shift_amt
🕒	a | b
🕒	a & b
🕒	a ~ b
🕒	y | = z
🕒	y &= z
🕒	y ~= z

Math Functions

Status	Feature	Comment
✅	sin(angle)
✅	cos(angle)
✅	tan(angle)
✅	asin(x)
✅	acos(x)
✅	atan(x)
✅	atan2(x, y)
✅	sqr(x)
✅	sqrt(x)
✅	pow(x, y)
✅	exp(x)
✅	log(x)
✅	log10(x)
✅	abs(x)
✅	min(x, y)
✅	max(x, y)
✅	sign(x)
✅	rand(x)
✅	floor(x)
✅	ceil(x)
✅	invsqrt(x)

Time Functions

Status	Feature	Comment
🕒	time([v])
🕒	time_precise([v])

Midi Functions

Status	Feature	Comment
🕒	midisend(offset, msg1, msg2)
🕒	midisend(offset, msg1, msg2 + (msg3 * 256))
🕒	midisend(offset, msg1, msg2, msg3)
🕒	midisend_buf(offset, buf, len)
🕒	midisend_str(offset, string)
🕒	midirecv(offset, msg1, msg23)
🕒	midirecv(offset, msg1, msg2, msg3)
🕒	midirecv_buf(offset, buf, maxlen)
🕒	midirecv_str(offset, string)
🕒	midisyx(offset, msgptr, len)

Memory/FFT/MDCT Functions

Status	Feature	Comment
🕒	mdct(start_index, size)
🕒	imdct(start_index, size)
🕒	fft(start_index, size)
🕒	ifft(start_index, size)
🕒	fft_real(start_index, size)
🕒	ifft_real(start_index, size)
🕒	fft_permute(index, size)
🕒	fft_ipermute(index, size)
🕒	convolve_c(dest, src, size)
🕒	freembuf(top)
🕒	memcpy(dest, source, length)
🕒	memset(dest, value, length)
🕒	mem_multiply_sum(buf1, buf2, length)
🕒	mem_insert_shuffle(buf, len, value)
🕒	__memtop()
🕒	stack_push(value)
🕒	stack_pop(value)
🕒	stack_peek(index)
🕒	stack_exch(value)
🕒	atomic_setifequal(dest, value, newvalue)
🕒	atomic_exch(val1, val2)
🕒	atomic_add(dest_val1, val2)
🕒	atomic_set(dest_val1, val2)
🕒	atomic_get(val)

Host Interaction Functions

Status	Feature	Comment
🕒	sliderchange(mask | sliderX)
🕒	slider_automate(mask or sliderX[, end_touch])
🕒	slider_show(mask or sliderX[, value])
🕒	export_buffer_to_project(buffer, length_samples, nch, srate, track_index[, flags, tempo, planar_pitch]) --
🕒	get_host_numchan()
🕒	set_host_numchan(numchan)
🕒	get_pin_mapping(inout, pin, startchan, chanmask)
🕒	set_pin_mapping(inout, pin, startchan, chanmask, mapping)
🕒	get_pinmapper_flags(no parameters)
🕒	set_pinmapper_flags(flags)
🕒	get_host_placement([chain_pos, flags])

String Functions

Status	Feature	Comment
🕒	strlen(str)
🕒	strcpy(str, srcstr)
🕒	strcat(str, srcstr)
🕒	strcmp(str, str2)
🕒	stricmp(str, str2)
🕒	strncmp(str, str2, maxlen)
🕒	strnicmp(str, str2, maxlen)
🕒	strncpy(str, srcstr, maxlen)
🕒	strncat(str, srcstr, maxlen)
🕒	strcpy_from(str, srcstr, offset)
🕒	strcpy_substr(str, srcstr, offset, maxlen)
🕒	str_getchar(str, offset[, type])
🕒	str_setchar(str, offset, value[, type])
🕒	strcpy_fromslider(str, slider)
🕒	sprintf(str, format, ...)
🕒	match(needle, haystack, ...)
🕒	matchi(needle, haystack, ...)

GFX Functions

Status	Feature	Comment
🕒	gfx_set(r[g, b, a, mode, dest])
🕒	gfx_lineto(x, y, aa)
🕒	gfx_line(x, y, x2, y2[, aa])
🕒	gfx_rectto(x, y)
🕒	gfx_rect(x, y, w, h)
🕒	gfx_setpixel(r, g, b)
🕒	gfx_getpixel(r, g, b)
🕒	gfx_drawnumber(n, ndigits)
🕒	gfx_drawchar($'c')
🕒	gfx_drawstr(str[, flags, right, bottom])
🕒	gfx_measurestr(str, w, h)
🕒	gfx_setfont(idx[, fontface, sz, flags])
🕒	gfx_getfont()
🕒	gfx_printf(str, ...)
🕒	gfx_blurto(x,y)
🕒	gfx_blit(source, scale, rotation)
🕒	gfx_blit(source, scale, rotation[, srcx, srcy, srcw, srch, destx, desty, destw, desth, rotxoffs, rotyoffs])
🕒	gfx_blitext(source, coordinatelist, rotation)
🕒	gfx_getimgdim(image, w, h)
🕒	gfx_setimgdim(image, w,h)
🕒	gfx_loadimg(image, filename)
🕒	gfx_gradrect(x,y,w,h, r,g,b,a[, drdx, dgdx, dbdx, dadx, drdy, dgdy, dbdy, dady])
🕒	gfx_muladdrect(x,y,w,h, mul_r, mul_g, mul_b[, mul_a, add_r, add_g, add_b, add_a])
🕒	gfx_deltablit(srcimg,srcx,srcy,srcw,srch, destx, desty, destw, desth, dsdx, dtdx, dsdy, dtdy, dsdxdy, dtdxdy[, usecliprect=1] )
🕒	gfx_transformblit(srcimg, destx, desty, destw, desth, div_w, div_h, table)
🕒	gfx_circle(x,y,r[,fill,antialias])
🕒	gfx_roundrect(x,y,w,h,radius[,antialias])
🕒	gfx_arc(x,y,r, ang1, ang2[,antialias])
🕒	gfx_triangle(x1,y1,x2,y2,x3,y3[,x4,y4,...])
🕒	gfx_getchar([char, unicodechar])
🕒	gfx_showmenu("str")
🕒	gfx_setcursor(resource_id[,"custom cursor name"])

GFX Vars

Status	Feature	Comment
🕒	gfx_r, gfx_g, gfx_b, gfx_a
🕒	gfx_w, gfx_h
🕒	gfx_x, gfx_y
🕒	gfx_mode
🕒	gfx_clear
🕒	gfx_dest
🕒	gfx_texth
🕒	gfx_ext_retina
🕒	gfx_ext_flags
🕒	mouse_x, mouse_y
🕒	mouse_cap
🕒	mouse_wheel, mouse_hwheel

Special Vars and Extended Functionality

Status	Feature	Comment
🕒	trigger
🕒	ext_noinit
🕒	ext_nodenorm
🕒	ext_tail_size
🕒	reg00-reg99
🕒	_global.*

Delay Compensation Vars

Status	Feature	Comment
🕒	pdc_delay
🕒	pdc_bot_ch
🕒	pdc_top_ch
🕒	pdc_midi