質問編集履歴
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this.を削除
test
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File without changes
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test
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@@ -18,7 +18,7 @@
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var ctx = canvas.getContext('2d')
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var imageData = ctx.createImageData(
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var imageData = ctx.createImageData(width, 1)
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var canvas_resize = document.getElementById('resize_canvas')
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@@ -30,13 +30,13 @@
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var pixels = imageData.data
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for (var y = 0; y < (buf.length) /
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for (var y = 0; y < (buf.length) / width; y += 1) {
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var base = 0
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for (var x = 0; x <
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for (var x = 0; x < width; x += 1) {
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var c = x + y *
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var c = x + y * width
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pixels[base + 0] = (buf[c] & 0xf800) >> 8 | (buf[c] & 0xe000) >> 13
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@@ -50,7 +50,7 @@
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}
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ctx.putImageData(
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ctx.putImageData(imageData, 0, y)
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}
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@@ -58,9 +58,9 @@
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// 以下で「resize_canvas」にリサイズして別のCanvasに表示したいのですが、表示されません。
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ctx_resize.drawImage(canvas, 0, 0, (
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ctx_resize.drawImage(canvas, 0, 0, (width * 2), (hight * 2))
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// こちらでもNG ctx_resize.drawImage(canvas, 0, 0,
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// こちらでもNG ctx_resize.drawImage(canvas, 0, 0, width, hight, 0, 0, (width * 2), (hight * 2))
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```
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