Also link to the source from the demos

This commit is contained in:
dcodeIO
2018-04-19 18:53:01 +02:00
parent 7d3fb86691
commit 18ef7c1932
12 changed files with 499 additions and 501 deletions

View File

@ -1,4 +1,7 @@
export function update(width: u32, height: u32, max: u32): void {
// see: https://en.wikipedia.org/wiki/Mandelbrot_set
/** Computes the number of iterations in the rectangle `width` x `height`, limited to `max`. */
export function compute(width: u32, height: u32, max: u32): void {
var translateX = width / 1.6;
var translateY = height / 2.0;
var scale = 4.0 / width;
@ -7,12 +10,14 @@ export function update(width: u32, height: u32, max: u32): void {
for (let x: u32 = 0; x < width; ++x) {
let real = (x - translateX) * scale;
let iteration = <u32>0;
for (let ix = 0.0, iy = 0.0; ix * ix + iy * iy <= 4.0; ++iteration) {
let t = ix * ix - iy * iy + real;
let ixsq: f64, iysq: f64;
for (let ix = 0.0, iy = 0.0; (ixsq = ix * ix) + (iysq = iy * iy) <= 4.0; ++iteration) {
let t = ixsq - iysq + real;
iy = 2.0 * ix * iy + imaginary;
ix = t;
if (++iteration >= max) break;
}
// write normalized iterations to [0, width * height], row by row
store<u8>(y * width + x, iteration * 255 / max);
}
}

View File

@ -1,207 +1,201 @@
(module
(type $iiiv (func (param i32 i32 i32)))
(memory $0 1)
(export "update" (func $assembly/index/update))
(export "compute" (func $assembly/index/compute))
(export "memory" (memory $0))
(func $assembly/index/update (; 0 ;) (type $iiiv) (param $0 i32) (param $1 i32) (param $2 i32)
(local $3 f64)
(local $4 f64)
(func $assembly/index/compute (; 0 ;) (type $iiiv) (param $0 i32) (param $1 i32) (param $2 i32)
(local $3 i32)
(local $4 i32)
(local $5 i32)
(local $6 i32)
(local $7 i32)
(local $6 f64)
(local $7 f64)
(local $8 f64)
(local $9 f64)
(local $10 f64)
(local $11 f64)
(local $12 f64)
(local $13 f64)
;;@ assembly/index.ts:2:2
(local $14 f64)
;;@ assembly/index.ts:5:2
(set_local $9
;;@ assembly/index.ts:2:19
;;@ assembly/index.ts:5:19
(f64.div
(f64.convert_u/i32
(get_local $0)
)
;;@ assembly/index.ts:2:27
;;@ assembly/index.ts:5:27
(f64.const 1.6)
)
)
;;@ assembly/index.ts:3:2
;;@ assembly/index.ts:6:2
(set_local $10
;;@ assembly/index.ts:3:19
;;@ assembly/index.ts:6:19
(f64.div
(f64.convert_u/i32
(get_local $1)
)
;;@ assembly/index.ts:3:28
;;@ assembly/index.ts:6:28
(f64.const 2)
)
)
;;@ assembly/index.ts:4:2
;;@ assembly/index.ts:7:2
(set_local $8
;;@ assembly/index.ts:4:14
;;@ assembly/index.ts:7:14
(f64.div
(f64.const 4)
(f64.convert_u/i32
;;@ assembly/index.ts:4:20
;;@ assembly/index.ts:7:20
(get_local $0)
)
)
)
(loop $continue|0
(if
;;@ assembly/index.ts:5:23
;;@ assembly/index.ts:8:23
(i32.lt_u
(get_local $5)
;;@ assembly/index.ts:5:27
(get_local $3)
;;@ assembly/index.ts:8:27
(get_local $1)
)
(block
;;@ assembly/index.ts:6:4
;;@ assembly/index.ts:9:4
(set_local $11
;;@ assembly/index.ts:6:20
;;@ assembly/index.ts:9:20
(f64.mul
(f64.sub
(f64.convert_u/i32
;;@ assembly/index.ts:6:21
(get_local $5)
;;@ assembly/index.ts:9:21
(get_local $3)
)
;;@ assembly/index.ts:6:25
;;@ assembly/index.ts:9:25
(get_local $10)
)
;;@ assembly/index.ts:6:39
;;@ assembly/index.ts:9:39
(get_local $8)
)
)
;;@ assembly/index.ts:7:9
(set_local $6
;;@ assembly/index.ts:7:22
;;@ assembly/index.ts:10:9
(set_local $4
;;@ assembly/index.ts:10:22
(i32.const 0)
)
(loop $continue|1
(if
;;@ assembly/index.ts:7:25
;;@ assembly/index.ts:10:25
(i32.lt_u
(get_local $6)
;;@ assembly/index.ts:7:29
(get_local $4)
;;@ assembly/index.ts:10:29
(get_local $0)
)
(block
;;@ assembly/index.ts:8:6
;;@ assembly/index.ts:11:6
(set_local $12
;;@ assembly/index.ts:8:17
;;@ assembly/index.ts:11:17
(f64.mul
(f64.sub
(f64.convert_u/i32
;;@ assembly/index.ts:8:18
(get_local $6)
;;@ assembly/index.ts:11:18
(get_local $4)
)
;;@ assembly/index.ts:8:22
;;@ assembly/index.ts:11:22
(get_local $9)
)
;;@ assembly/index.ts:8:36
;;@ assembly/index.ts:11:36
(get_local $8)
)
)
;;@ assembly/index.ts:9:6
(set_local $7
;;@ assembly/index.ts:9:22
;;@ assembly/index.ts:12:6
(set_local $5
;;@ assembly/index.ts:12:22
(i32.const 0)
)
;;@ assembly/index.ts:10:6
;;@ assembly/index.ts:14:6
(block $break|2
(set_local $3
;;@ assembly/index.ts:10:20
(set_local $6
;;@ assembly/index.ts:14:20
(f64.const 0)
)
(set_local $4
;;@ assembly/index.ts:10:30
(set_local $7
;;@ assembly/index.ts:14:30
(f64.const 0)
)
(loop $continue|2
(if
;;@ assembly/index.ts:10:35
;;@ assembly/index.ts:14:35
(f64.le
(f64.add
(f64.mul
(get_local $3)
;;@ assembly/index.ts:10:40
(get_local $3)
(tee_local $13
;;@ assembly/index.ts:14:43
(f64.mul
(get_local $6)
;;@ assembly/index.ts:14:48
(get_local $6)
)
)
;;@ assembly/index.ts:10:45
(f64.mul
(get_local $4)
;;@ assembly/index.ts:10:50
(get_local $4)
;;@ assembly/index.ts:14:54
(tee_local $14
;;@ assembly/index.ts:14:62
(f64.mul
(get_local $7)
;;@ assembly/index.ts:14:67
(get_local $7)
)
)
)
;;@ assembly/index.ts:10:56
;;@ assembly/index.ts:14:74
(f64.const 4)
)
(block
;;@ assembly/index.ts:11:8
(set_local $13
;;@ assembly/index.ts:11:16
(f64.add
(f64.sub
(f64.mul
(get_local $3)
;;@ assembly/index.ts:11:21
(get_local $3)
)
;;@ assembly/index.ts:11:26
(f64.mul
(get_local $4)
;;@ assembly/index.ts:11:31
(get_local $4)
)
)
;;@ assembly/index.ts:11:36
(get_local $12)
)
)
;;@ assembly/index.ts:12:8
(set_local $4
;;@ assembly/index.ts:12:13
;;@ assembly/index.ts:16:8
(set_local $7
;;@ assembly/index.ts:16:13
(f64.add
(f64.mul
(f64.mul
(f64.const 2)
;;@ assembly/index.ts:12:19
(get_local $3)
;;@ assembly/index.ts:16:19
(get_local $6)
)
;;@ assembly/index.ts:12:24
(get_local $4)
;;@ assembly/index.ts:16:24
(get_local $7)
)
;;@ assembly/index.ts:12:29
;;@ assembly/index.ts:16:29
(get_local $11)
)
)
;;@ assembly/index.ts:13:8
(set_local $3
;;@ assembly/index.ts:13:13
(get_local $13)
;;@ assembly/index.ts:17:8
(set_local $6
;;@ assembly/index.ts:15:16
(f64.add
(f64.sub
(get_local $13)
;;@ assembly/index.ts:15:23
(get_local $14)
)
;;@ assembly/index.ts:15:30
(get_local $12)
)
)
;;@ assembly/index.ts:14:32
;;@ assembly/index.ts:18:32
(br_if $break|2
;;@ assembly/index.ts:14:12
;;@ assembly/index.ts:18:12
(i32.ge_u
(tee_local $7
(tee_local $5
(i32.add
;;@ assembly/index.ts:14:14
(get_local $7)
;;@ assembly/index.ts:18:14
(get_local $5)
(i32.const 1)
)
)
;;@ assembly/index.ts:14:27
;;@ assembly/index.ts:18:27
(get_local $2)
)
)
;;@ assembly/index.ts:10:61
(set_local $7
;;@ assembly/index.ts:14:79
(set_local $5
(i32.add
;;@ assembly/index.ts:10:63
(get_local $7)
;;@ assembly/index.ts:14:81
(get_local $5)
(i32.const 1)
)
)
@ -210,34 +204,34 @@
)
)
)
;;@ assembly/index.ts:16:6
;;@ assembly/index.ts:21:6
(i32.store8
;;@ assembly/index.ts:16:16
;;@ assembly/index.ts:21:16
(i32.add
(i32.mul
(get_local $5)
;;@ assembly/index.ts:16:20
(get_local $3)
;;@ assembly/index.ts:21:20
(get_local $0)
)
;;@ assembly/index.ts:16:28
(get_local $6)
;;@ assembly/index.ts:21:28
(get_local $4)
)
;;@ assembly/index.ts:16:31
;;@ assembly/index.ts:21:31
(i32.div_u
(i32.mul
(get_local $7)
;;@ assembly/index.ts:16:43
(get_local $5)
;;@ assembly/index.ts:21:43
(i32.const 255)
)
;;@ assembly/index.ts:16:49
;;@ assembly/index.ts:21:49
(get_local $2)
)
)
;;@ assembly/index.ts:7:36
(set_local $6
;;@ assembly/index.ts:10:36
(set_local $4
(i32.add
;;@ assembly/index.ts:7:38
(get_local $6)
;;@ assembly/index.ts:10:38
(get_local $4)
(i32.const 1)
)
)
@ -245,11 +239,11 @@
)
)
)
;;@ assembly/index.ts:5:35
(set_local $5
;;@ assembly/index.ts:8:35
(set_local $3
(i32.add
;;@ assembly/index.ts:5:37
(get_local $5)
;;@ assembly/index.ts:8:37
(get_local $3)
(i32.const 1)
)
)

View File

@ -2,9 +2,9 @@
(type $iiiv (func (param i32 i32 i32)))
(global $HEAP_BASE i32 (i32.const 4))
(memory $0 1)
(export "update" (func $assembly/index/update))
(export "compute" (func $assembly/index/compute))
(export "memory" (memory $0))
(func $assembly/index/update (; 0 ;) (type $iiiv) (param $0 i32) (param $1 i32) (param $2 i32)
(func $assembly/index/compute (; 0 ;) (type $iiiv) (param $0 i32) (param $1 i32) (param $2 i32)
(local $3 f64)
(local $4 f64)
(local $5 f64)
@ -16,209 +16,211 @@
(local $11 f64)
(local $12 f64)
(local $13 f64)
;;@ assembly/index.ts:2:2
(local $14 f64)
(local $15 f64)
;;@ assembly/index.ts:5:2
(set_local $3
;;@ assembly/index.ts:2:19
;;@ assembly/index.ts:5:19
(f64.div
(f64.convert_u/i32
(get_local $0)
)
;;@ assembly/index.ts:2:27
;;@ assembly/index.ts:5:27
(f64.const 1.6)
)
)
;;@ assembly/index.ts:3:2
;;@ assembly/index.ts:6:2
(set_local $4
;;@ assembly/index.ts:3:19
;;@ assembly/index.ts:6:19
(f64.div
(f64.convert_u/i32
(get_local $1)
)
;;@ assembly/index.ts:3:28
;;@ assembly/index.ts:6:28
(f64.const 2)
)
)
;;@ assembly/index.ts:4:2
;;@ assembly/index.ts:7:2
(set_local $5
;;@ assembly/index.ts:4:14
;;@ assembly/index.ts:7:14
(f64.div
(f64.const 4)
(f64.convert_u/i32
;;@ assembly/index.ts:4:20
;;@ assembly/index.ts:7:20
(get_local $0)
)
)
)
;;@ assembly/index.ts:5:2
;;@ assembly/index.ts:8:2
(block $break|0
;;@ assembly/index.ts:5:7
;;@ assembly/index.ts:8:7
(set_local $6
;;@ assembly/index.ts:5:20
;;@ assembly/index.ts:8:20
(i32.const 0)
)
(loop $continue|0
(if
;;@ assembly/index.ts:5:23
;;@ assembly/index.ts:8:23
(i32.lt_u
(get_local $6)
;;@ assembly/index.ts:5:27
;;@ assembly/index.ts:8:27
(get_local $1)
)
(block
(block
;;@ assembly/index.ts:6:4
;;@ assembly/index.ts:9:4
(set_local $7
;;@ assembly/index.ts:6:20
;;@ assembly/index.ts:9:20
(f64.mul
(f64.sub
(f64.convert_u/i32
;;@ assembly/index.ts:6:21
;;@ assembly/index.ts:9:21
(get_local $6)
)
;;@ assembly/index.ts:6:25
;;@ assembly/index.ts:9:25
(get_local $4)
)
;;@ assembly/index.ts:6:39
;;@ assembly/index.ts:9:39
(get_local $5)
)
)
;;@ assembly/index.ts:7:4
;;@ assembly/index.ts:10:4
(block $break|1
;;@ assembly/index.ts:7:9
;;@ assembly/index.ts:10:9
(set_local $8
;;@ assembly/index.ts:7:22
;;@ assembly/index.ts:10:22
(i32.const 0)
)
(loop $continue|1
(if
;;@ assembly/index.ts:7:25
;;@ assembly/index.ts:10:25
(i32.lt_u
(get_local $8)
;;@ assembly/index.ts:7:29
;;@ assembly/index.ts:10:29
(get_local $0)
)
(block
(block
;;@ assembly/index.ts:8:6
;;@ assembly/index.ts:11:6
(set_local $9
;;@ assembly/index.ts:8:17
;;@ assembly/index.ts:11:17
(f64.mul
(f64.sub
(f64.convert_u/i32
;;@ assembly/index.ts:8:18
;;@ assembly/index.ts:11:18
(get_local $8)
)
;;@ assembly/index.ts:8:22
;;@ assembly/index.ts:11:22
(get_local $3)
)
;;@ assembly/index.ts:8:36
;;@ assembly/index.ts:11:36
(get_local $5)
)
)
;;@ assembly/index.ts:9:6
;;@ assembly/index.ts:12:6
(set_local $10
;;@ assembly/index.ts:9:22
;;@ assembly/index.ts:12:22
(i32.const 0)
)
;;@ assembly/index.ts:10:6
;;@ assembly/index.ts:13:6
(nop)
;;@ assembly/index.ts:14:6
(block $break|2
(block
(set_local $11
;;@ assembly/index.ts:10:20
(set_local $13
;;@ assembly/index.ts:14:20
(f64.const 0)
)
(set_local $12
;;@ assembly/index.ts:10:30
(set_local $14
;;@ assembly/index.ts:14:30
(f64.const 0)
)
)
(loop $continue|2
(if
;;@ assembly/index.ts:10:35
;;@ assembly/index.ts:14:35
(f64.le
(f64.add
(f64.mul
(get_local $11)
;;@ assembly/index.ts:10:40
(get_local $11)
(tee_local $11
;;@ assembly/index.ts:14:43
(f64.mul
(get_local $13)
;;@ assembly/index.ts:14:48
(get_local $13)
)
)
;;@ assembly/index.ts:10:45
(f64.mul
(get_local $12)
;;@ assembly/index.ts:10:50
(get_local $12)
;;@ assembly/index.ts:14:54
(tee_local $12
;;@ assembly/index.ts:14:62
(f64.mul
(get_local $14)
;;@ assembly/index.ts:14:67
(get_local $14)
)
)
)
;;@ assembly/index.ts:10:56
;;@ assembly/index.ts:14:74
(f64.const 4)
)
(block
(block
;;@ assembly/index.ts:11:8
(set_local $13
;;@ assembly/index.ts:11:16
;;@ assembly/index.ts:15:8
(set_local $15
;;@ assembly/index.ts:15:16
(f64.add
(f64.sub
(f64.mul
(get_local $11)
;;@ assembly/index.ts:11:21
(get_local $11)
)
;;@ assembly/index.ts:11:26
(f64.mul
(get_local $12)
;;@ assembly/index.ts:11:31
(get_local $12)
)
(get_local $11)
;;@ assembly/index.ts:15:23
(get_local $12)
)
;;@ assembly/index.ts:11:36
;;@ assembly/index.ts:15:30
(get_local $9)
)
)
;;@ assembly/index.ts:12:8
(set_local $12
;;@ assembly/index.ts:12:13
;;@ assembly/index.ts:16:8
(set_local $14
;;@ assembly/index.ts:16:13
(f64.add
(f64.mul
(f64.mul
(f64.const 2)
;;@ assembly/index.ts:12:19
(get_local $11)
;;@ assembly/index.ts:16:19
(get_local $13)
)
;;@ assembly/index.ts:12:24
(get_local $12)
;;@ assembly/index.ts:16:24
(get_local $14)
)
;;@ assembly/index.ts:12:29
;;@ assembly/index.ts:16:29
(get_local $7)
)
)
;;@ assembly/index.ts:13:8
(set_local $11
;;@ assembly/index.ts:13:13
(get_local $13)
;;@ assembly/index.ts:17:8
(set_local $13
;;@ assembly/index.ts:17:13
(get_local $15)
)
;;@ assembly/index.ts:14:8
;;@ assembly/index.ts:18:8
(if
;;@ assembly/index.ts:14:12
;;@ assembly/index.ts:18:12
(i32.ge_u
(tee_local $10
(i32.add
;;@ assembly/index.ts:14:14
;;@ assembly/index.ts:18:14
(get_local $10)
(i32.const 1)
)
)
;;@ assembly/index.ts:14:27
;;@ assembly/index.ts:18:27
(get_local $2)
)
;;@ assembly/index.ts:14:32
;;@ assembly/index.ts:18:32
(br $break|2)
)
)
;;@ assembly/index.ts:10:61
;;@ assembly/index.ts:14:79
(set_local $10
(i32.add
;;@ assembly/index.ts:10:63
;;@ assembly/index.ts:14:81
(get_local $10)
(i32.const 1)
)
@ -228,34 +230,34 @@
)
)
)
;;@ assembly/index.ts:16:6
;;@ assembly/index.ts:21:6
(i32.store8
;;@ assembly/index.ts:16:16
;;@ assembly/index.ts:21:16
(i32.add
(i32.mul
(get_local $6)
;;@ assembly/index.ts:16:20
;;@ assembly/index.ts:21:20
(get_local $0)
)
;;@ assembly/index.ts:16:28
;;@ assembly/index.ts:21:28
(get_local $8)
)
;;@ assembly/index.ts:16:31
;;@ assembly/index.ts:21:31
(i32.div_u
(i32.mul
(get_local $10)
;;@ assembly/index.ts:16:43
;;@ assembly/index.ts:21:43
(i32.const 255)
)
;;@ assembly/index.ts:16:49
;;@ assembly/index.ts:21:49
(get_local $2)
)
)
)
;;@ assembly/index.ts:7:36
;;@ assembly/index.ts:10:36
(set_local $8
(i32.add
;;@ assembly/index.ts:7:38
;;@ assembly/index.ts:10:38
(get_local $8)
(i32.const 1)
)
@ -266,10 +268,10 @@
)
)
)
;;@ assembly/index.ts:5:35
;;@ assembly/index.ts:8:35
(set_local $6
(i32.add
;;@ assembly/index.ts:5:37
;;@ assembly/index.ts:8:37
(get_local $6)
(i32.const 1)
)

View File

@ -14,6 +14,7 @@ canvas { position: absolute; top: 60px; left: 20px; width: calc(100% - 40px); he
<h1>
<a href="https://en.wikipedia.org/wiki/Mandelbrot_set">Mandelbrot Set</a> in
<a href="http://assemblyscript.org">AssemblyScript</a>
( <a href="https://github.com/AssemblyScript/assemblyscript/blob/master/examples/mandelbrot/assembly/index.ts">source</a> )
</h1>
<canvas></canvas>
<script>
@ -42,10 +43,10 @@ fetch("build/optimized.wasm")
memory.grow(pages);
}
// Update
exports.update(width, height, 100);
// Compute number of iterations
exports.compute(width, height, 100);
// Render
// Render to the canvas
var mem = new Uint8Array(memory.buffer);
var imageData = ctx.createImageData(width, height);
var argb = new Uint32Array(imageData.data.buffer);
@ -56,7 +57,7 @@ fetch("build/optimized.wasm")
ctx.putImageData(imageData, 0, 0);
}).catch(err => {
alert("Failed to load WASM: " + err.message + " (ad blocker, maybe?)");
throw err;
console.log(err.stack);
});
// Compute a nice set of colors using a gradient