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Soften colors for light backgrounds

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This commit is contained in:
Alex Dima
2017-02-16 20:44:55 +01:00
parent 55d724eaf1
commit b7cb1f1ae3
1 changed files with 18 additions and 2 deletions
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src/vs/editor/common/view/minimapCharRenderer.ts
+18 -2
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@@ -13,11 +13,13 @@ export class ParsedColor {
public readonly r: number;
public readonly g: number;
public readonly b: number;
public readonly isLight: boolean;
constructor(r, g, b) {
this.r = r;
this.g = g;
this.b = b;
this.isLight = ((r + g + b) / (3 * 255) > 0.5);
}
}
@@ -147,6 +149,9 @@ export class MinimapCharRenderer {
public readonly x2charData: Uint8ClampedArray;
public readonly x1charData: Uint8ClampedArray;
public readonly x2charDataLight: Uint8ClampedArray;
public readonly x1charDataLight: Uint8ClampedArray;
constructor(x2CharData: Uint8ClampedArray, x1CharData: Uint8ClampedArray) {
const x2ExpectedLen = Constants.x2_CHAR_HEIGHT * Constants.x2_CHAR_WIDTH * Constants.CHAR_COUNT;
if (x2CharData.length !== x2ExpectedLen) {
@@ -158,6 +163,17 @@ export class MinimapCharRenderer {
}
this.x2charData = x2CharData;
this.x1charData = x1CharData;
this.x2charDataLight = MinimapCharRenderer.soften(x2CharData, 12 / 15);
this.x1charDataLight = MinimapCharRenderer.soften(x1CharData, 50 / 60);
}
private static soften(input: Uint8ClampedArray, ratio: number): Uint8ClampedArray {
let result = new Uint8ClampedArray(input.length);
for (let i = 0, len = input.length; i < len; i++) {
result[i] = input[i] * ratio;
}
return result;
}
private static _getChIndex(chCode: number): number {
@@ -173,7 +189,7 @@ export class MinimapCharRenderer {
console.warn('bad render request outside image data');
return;
}
const x2CharData = this.x2charData;
const x2CharData = backgroundColor.isLight ? this.x2charDataLight : this.x2charData;
const chIndex = MinimapCharRenderer._getChIndex(chCode);
const outWidth = target.width * Constants.RGBA_CHANNELS_CNT;
@@ -250,7 +266,7 @@ export class MinimapCharRenderer {
console.warn('bad render request outside image data');
return;
}
const x1CharData = this.x1charData;
const x1CharData = backgroundColor.isLight ? this.x1charDataLight : this.x1charData;
const chIndex = MinimapCharRenderer._getChIndex(chCode);
const outWidth = target.width * Constants.RGBA_CHANNELS_CNT;