package vendor:stb/image

Source

Io_Callbacks :: struct {
	read: proc "c" (user: rawptr, data: [^]u8, size: i32) -> i32,
	// fill 'data' with 'size' u8s.  return number of u8s actually read
	skip: proc "c" (user: rawptr, n: i32),
	// skip the next 'n' u8s, or 'unget' the last -n u8s if negative
	eof:  proc "c" (user: rawptr) -> i32,
}

colorspace :: enum i32 {
	LINEAR, 
	SRGB, 
	MAX_COLORSPACES, 
}

datatype :: enum i32 {
	UINT8, 
	UINT16, 
	UINT32, 
	FLOAT, 
	MAX_TYPES, 
}

edge :: enum i32 {
	CLAMP   = 1, 
	REFLECT = 2, 
	WRAP    = 3, 
	ZERO    = 4, 
}

filter :: enum i32 {
	DEFAULT      = 0, // use same filter type that easy-to-use API chooses
	BOX          = 1, // A trapezoid w/1-pixel wide ramps, same result as box for integer scale ratios
	TRIANGLE     = 2, // On upsampling, produces same results as bilinear texture filtering
	CUBICBSPLINE = 3, // The cubic b-spline (aka Mitchell-Netrevalli with B=1,C=0), gaussian-esque
	CATMULLROM   = 4, // An interpolating cubic spline
	MITCHELL     = 5, // Mitchell-Netrevalli filter with B=1/3, C=1/3
}

write_func :: proc "c" (ctx: rawptr, data: rawptr, size: i32)

ALPHA_CHANNEL_NONE :: -1

FLAG_ALPHA_PREMULTIPLIED :: 1 << 0

FLAG_ALPHA_USES_COLORSPACE :: 1 << 1

NO_STDIO :: ODIN_ARCH == .wasm32 || ODIN_ARCH == .wasm64p32

convert_iphone_png_to_rgb :: proc "c" (flag_true_if_should_convert: i32) ---

convert_iphone_png_to_rgb_thread :: proc "c" (flag_true_if_should_convert: b32) ---

failure_reason :: proc "c" () -> cstring ---

flip_vertically_on_write :: proc "c" (flip_boolean: b32) ---

hdr_to_ldr_gamma :: proc "c" (gamma: f32) ---

hdr_to_ldr_scale :: proc "c" (scale: f32) ---

image_free :: proc "c" (retval_from_load: rawptr) ---

info :: proc "c" (filename: cstring, x, y, comp: ^i32) -> i32 ---

info_from_callbacks :: proc "c" (clbk: ^Io_Callbacks, user: rawptr, x, y, comp: ^i32) -> i32 ---

info_from_file :: proc "c" (f: ^c.FILE, x, y, comp: ^i32) -> i32 ---

info_from_memory :: proc "c" (buffer: [^]u8, len: i32, x, y, comp: ^i32) -> i32 ---

is_16_bit :: proc "c" (filename: cstring) -> b32 ---

is_16_bit_from_file :: proc "c" (f: ^c.FILE) -> b32 ---

is_16_bit_from_memory :: proc "c" (buffer: [^]u8, len: i32) -> i32 ---

is_hdr :: proc "c" (filename: cstring) -> i32 ---

is_hdr_from_callbacks :: proc "c" (clbk: ^Io_Callbacks, user: rawptr) -> i32 ---

is_hdr_from_file :: proc "c" (f: ^c.FILE) -> i32 ---

is_hdr_from_memory :: proc "c" (buffer: [^]u8, len: i32) -> i32 ---

ldr_to_hdr_gamma :: proc "c" (gamma: f32) ---

ldr_to_hdr_scale :: proc "c" (scale: f32) ---

load :: proc "c" (
	filename:               cstring, 
	x, y, channels_in_file: ^i32, 
	desired_channels:       i32, 
) -> [^]u8 ---

load_16 :: proc "c" (
	filename:               cstring, 
	x, y, channels_in_file: ^i32, 
	desired_channels:       i32, 
) -> [^]u16 ---

load_16_from_callbacks :: proc "c" (
	clbk:                   ^Io_Callbacks, 
	x, y, channels_in_file: ^i32, 
	desired_channels:       i32, 
) -> [^]u16 ---

load_16_from_file :: proc "c" (
	f:                      ^c.FILE, 
	x, y, channels_in_file: ^i32, 
	desired_channels:       i32, 
) -> [^]u16 ---

load_16_from_memory :: proc "c" (
	buffer:                 [^]u8, 
	len:                    i32, 
	x, y, channels_in_file: ^i32, 
	desired_channels:       i32, 
) -> [^]u16 ---

load_from_callbacks :: proc "c" (
	clbk:                   ^Io_Callbacks, 
	user:                   rawptr, 
	x, y, channels_in_file: ^i32, 
	desired_channels:       i32, 
) -> [^]u8 ---

load_from_file :: proc "c" (
	f:                      ^c.FILE, 
	x, y, channels_in_file: ^i32, 
	desired_channels:       i32, 
) -> [^]u8 ---

load_from_memory :: proc "c" (
	buffer:                 [^]u8, 
	len:                    i32, 
	x, y, channels_in_file: ^i32, 
	desired_channels:       i32, 
) -> [^]u8 ---

load_gif_from_memory :: proc "c" (
	buffer:        [^]u8, 
	len:           i32, 
	delays:        ^[^]i32, 
	x, y, z, comp: ^i32, 
	req_comp:      i32, 
) -> [^]u8 ---

loadf :: proc "c" (
	filename:               cstring, 
	x, y, channels_in_file: ^i32, 
	desired_channels:       i32, 
) -> [^]f32 ---

loadf_from_callbacks :: proc "c" (
	clbk:                   ^Io_Callbacks, 
	user:                   rawptr, 
	x, y, channels_in_file: ^i32, 
	desired_channels:       i32, 
) -> [^]f32 ---

loadf_from_file :: proc "c" (
	f:                      ^c.FILE, 
	x, y, channels_in_file: ^i32, 
	desired_channels:       i32, 
) -> [^]f32 ---

loadf_from_memory :: proc "c" (
	buffer:                 [^]u8, 
	len:                    i32, 
	x, y, channels_in_file: ^i32, 
	desired_channels:       i32, 
) -> [^]f32 ---

resize :: proc "c" (
	input_pixels:                               rawptr, 
	input_w, input_h, input_stride_in_bytes:    i32, 
	output_pixels:                              rawptr, 
	output_w, output_h, output_stride_in_bytes: i32, 
	datatype:                                   datatype, 
	num_channels:                               i32, 
	alpha_channel:                              i32, 
	flags:                                      i32, 
	edge_mode_horizontal, edge_mode_vertical:   edge, 
	filter_horizontal, filter_vertical:         filter, 
	space:                                      colorspace, 
	alloc_context:                              rawptr, 
) -> i32 ---

resize_float :: proc "c" (
	input_pixels:                               [^]f32, 
	input_w, input_h, input_stride_in_bytes:    i32, 
	output_pixels:                              [^]f32, 
	output_w, output_h, output_stride_in_bytes: i32, 
	num_channels:                               i32, 
) -> i32 ---

resize_float_generic :: proc "c" (
	input_pixels:                               [^]f32, 
	input_w, input_h, input_stride_in_bytes:    i32, 
	output_pixels:                              [^]f32, 
	output_w, output_h, output_stride_in_bytes: i32, 
	num_channels:                               i32, 
	alpha_channel:                              i32, 
	flags:                                      i32, 
	edge_wrap_mode:                             edge, 
	filter:                                     filter, 
	space:                                      colorspace, 
	alloc_context:                              rawptr, 
) -> i32 ---

resize_region :: proc "c" (
	input_pixels:                               rawptr, 
	input_w, input_h, input_stride_in_bytes:    i32, 
	output_pixels:                              rawptr, 
	output_w, output_h, output_stride_in_bytes: i32, 
	datatype:                                   datatype, 
	num_channels:                               i32, 
	alpha_channel:                              i32, 
	flags:                                      i32, 
	edge_mode_horizontal, edge_mode_vertical:   edge, 
	filter_horizontal, filter_vertical:         filter, 
	space:                                      colorspace, 
	alloc_context:                              rawptr, 
	s0, t0, s1, 
	t1:                                         f32, 
) -> i32 ---

resize_subpixel :: proc "c" (
	input_pixels:                               rawptr, 
	input_w, input_h, input_stride_in_bytes:    i32, 
	output_pixels:                              rawptr, 
	output_w, output_h, output_stride_in_bytes: i32, 
	datatype:                                   datatype, 
	num_channels:                               i32, 
	alpha_channel:                              i32, 
	flags:                                      i32, 
	edge_mode_horizontal, edge_mode_vertical:   edge, 
	filter_horizontal, filter_vertical:         filter, 
	space:                                      colorspace, 
	alloc_context:                              rawptr, 
	x_scale, y_scale:                           f32, 
	x_offset, 
	y_offset:                                   f32, 
) -> i32 ---

resize_uint16_generic :: proc "c" (
	input_pixels:                               [^]u16, 
	input_w, input_h, input_stride_in_bytes:    i32, 
	output_pixels:                              [^]u16, 
	output_w, output_h, output_stride_in_bytes: i32, 
	num_channels:                               i32, 
	alpha_channel:                              i32, 
	flags:                                      i32, 
	edge_wrap_mode:                             edge, 
	filter:                                     filter, 
	space:                                      colorspace, 
	alloc_context:                              rawptr, 
) -> i32 ---

resize_uint8 :: proc "c" (
	input_pixels:                               [^]u8, 
	input_w, input_h, input_stride_in_bytes:    i32, 
	output_pixels:                              [^]u8, 
	output_w, output_h, output_stride_in_bytes: i32, 
	num_channels:                               i32, 
) -> i32 ---

resize_uint8_generic :: proc "c" (
	input_pixels:                               [^]u8, 
	input_w, input_h, input_stride_in_bytes:    i32, 
	output_pixels:                              [^]u8, 
	output_w, output_h, output_stride_in_bytes: i32, 
	num_channels:                               i32, 
	alpha_channel:                              i32, 
	flags:                                      i32, 
	edge_wrap_mode:                             edge, 
	filter:                                     filter, 
	space:                                      colorspace, 
	alloc_context:                              rawptr, 
) -> i32 ---

resize_uint8_srgb :: proc "c" (
	input_pixels:                               [^]u8, 
	input_w, input_h, input_stride_in_bytes:    i32, 
	output_pixels:                              [^]u8, 
	output_w, output_h, output_stride_in_bytes: i32, 
	num_channels:                               i32, 
	alpha_channel:                              i32, 
	flags:                                      i32, 
) -> i32 ---

resize_uint8_srgb_edgemode :: proc "c" (
	input_pixels:                               [^]u8, 
	input_w, input_h, input_stride_in_bytes:    i32, 
	output_pixels:                              [^]u8, 
	output_w, output_h, output_stride_in_bytes: i32, 
	num_channels:                               i32, 
	alpha_channel:                              i32, 
	flags:                                      i32, 
	edge_wrap_mode:                             edge, 
) -> i32 ---

set_flip_vertically_on_load :: proc "c" (flag_true_if_should_flip: i32) ---

set_flip_vertically_on_load_thread :: proc "c" (flag_true_if_should_flip: b32) ---

set_unpremultiply_on_load :: proc "c" (flag_true_if_should_unpremultiply: i32) ---

set_unpremultiply_on_load_thread :: proc "c" (flag_true_if_should_unpremultiply: b32) ---

write_bmp :: proc "c" (filename: cstring, w, h, comp: i32, data: rawptr) -> i32 ---

write_bmp_to_func :: proc "c" (
	func:       write_func, 
	ctx:        rawptr, 
	w, h, comp: i32, 
	data:       rawptr, 
) -> i32 ---

write_hdr :: proc "c" (filename: cstring, w, h, comp: i32, data: [^]f32) -> i32 ---

write_hdr_to_func :: proc "c" (
	func:       write_func, 
	ctx:        rawptr, 
	w, h, comp: i32, 
	data:       [^]f32, 
) -> i32 ---

write_jpg :: proc "c" (
	filename:   cstring, 
	w, h, comp: i32, 
	data:       rawptr, 
	quality:    i32, 
) -> i32 ---

write_jpg_to_func :: proc "c" (
	func:       write_func, 
	ctx:        rawptr, 
	x, y, comp: i32, 
	data:       rawptr, 
	quality:    i32, 
) -> i32 ---

write_png :: proc "c" (
	filename:        cstring, 
	w, h, comp:      i32, 
	data:            rawptr, 
	stride_in_bytes: i32, 
) -> i32 ---

write_png_to_func :: proc "c" (
	func:            write_func, 
	ctx:             rawptr, 
	w, h, comp:      i32, 
	data:            rawptr, 
	stride_in_bytes: i32, 
) -> i32 ---

write_tga :: proc "c" (filename: cstring, w, h, comp: i32, data: rawptr) -> i32 ---

write_tga_to_func :: proc "c" (
	func:       write_func, 
	ctx:        rawptr, 
	w, h, comp: i32, 
	data:       rawptr, 
) -> i32 ---

zlib_decode_buffer :: proc "c" (obuffer: [^]u8, olen: i32, ibuffer: [^]u8, ilen: i32) -> i32 ---

zlib_decode_malloc :: proc "c" (buffer: [^]u8, len: i32, outlen: ^i32) -> [^]u8 ---

zlib_decode_malloc_guesssize :: proc "c" (
	buffer:       [^]u8, 
	len:          i32, 
	initial_size: i32, 
	outlen:       ^i32, 
) -> [^]u8 ---

zlib_decode_malloc_guesssize_headerflag :: proc "c" (
	buffer:       [^]u8, 
	len:          i32, 
	initial_size: i32, 
	outlen:       ^i32, 
	parse_header: b32, 
) -> [^]u8 ---

zlib_decode_noheader_buffer :: proc "c" (
	obuffer: [^]u8, 
	olen:    i32, 
	ibuffer: [^]u8, 
	ilen:    i32, 
) -> i32 ---

zlib_decode_noheader_malloc :: proc "c" (buffer: [^]u8, len: i32, outlen: ^i32) -> [^]u8 ---