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optimize hline function, update wasmtime

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This commit is contained in:
Dennis Ranke
2022-06-12 14:28:01 +02:00
parent e0450c9039
commit caeaa82787
12 changed files with 845 additions and 656 deletions
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83
platform/src/platform.cwa
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@@ -62,11 +62,7 @@ export fn cls(col: i32) {
textCursorX = 0;
textCursorY = 0;
outputChannel = 0;
col = (col & 255) * 0x1010101;
loop pixels {
i!120 = col;
branch_if (i := i + 4) < 320*240: pixels;
}
memory.fill(120, col, 320*240);
}
export fn setPixel(x: i32, y: i32, col: i32) {
@@ -90,12 +86,70 @@ fn clamp(v: i32, min: i32, max: i32) -> i32 {
export fn hline(x1: i32, x2: i32, y: i32, col: i32) {
x1 = clamp(x1, 0, 320);
x2 = clamp(x2, 0, 320);
if x1 < x2 & y #< 240 {
if y #>= 240 {
return;
}
let word_start = (x1 + 3) & -4;
let word_end = x2 & -4;
if word_end > word_start {
col = (col & 255) * 0x1010101;
let ptr = y * 320 + x1;
let end = ptr + word_start - x1;
if ptr + 2 <= end {
ptr?120 = col;
ptr?121 = col;
ptr += 2;
}
if ptr < end {
ptr?120 = col;
ptr += 1;
}
end += word_end - word_start;
loop words {
if ptr + 16 <= end {
ptr!120 = col;
ptr!124 = col;
ptr!128 = col;
ptr!132 = col;
ptr += 16;
branch words;
}
if ptr + 8 <= end {
ptr!120 = col;
ptr!124 = col;
ptr += 8;
}
if ptr < end {
ptr!120 = col;
ptr += 4;
}
}
end += x2 - word_end;
if ptr + 2 <= end {
ptr?120 = col;
ptr?121 = col;
ptr += 2;
}
if ptr < end {
ptr?120 = col;
}
} else {
let ptr = y * 320 + x1;
let end = ptr + x2 - x1;
loop pixels {
if ptr + 4 <= end {
ptr?120 = col;
ptr?121 = col;
ptr?122 = col;
ptr?123 = col;
ptr += 4;
}
if ptr + 2 <= end {
ptr?120 = col;
ptr?121 = col;
ptr += 2;
}
if ptr < end {
ptr?120 = col;
branch_if (ptr := ptr + 1) < end: pixels;
}
}
}
@@ -548,13 +602,6 @@ export fn endFrame() {
68!4 = 68!0;
}
fn memclr(base: i32, size: i32) {
loop bytes {
(base + (size := size - 1))?0 = 0;
branch_if size: bytes;
}
}
start fn setup() {
let i: i32 = 12*16*3-1;
let avg: f32;
@@ -587,9 +634,9 @@ start fn setup() {
branch_if (i := i - 1) >= 0: expand_sweetie;
}
memclr(0, 64);
memclr(112, 8);
memclr(0x14000, 0x2c000);
memory.fill(0, 0, 64);
memory.fill(112, 0, 8);
memory.fill(0x14000, 0, 0x2c000);
cls(0);