Split api of inflate
Added ability to read data chunk wise.
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@ -160,7 +160,9 @@ export default class TightDecoder {
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return false;
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}
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data = this._zlibs[streamId].inflate(data, uncompressedSize);
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this._zlibs[streamId].setInput(data);
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data = this._zlibs[streamId].inflate(uncompressedSize);
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this._zlibs[streamId].setInput(null);
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}
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display.blitRgbImage(x, y, width, height, data, 0, false);
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@ -205,7 +207,9 @@ export default class TightDecoder {
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return false;
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}
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data = this._zlibs[streamId].inflate(data, uncompressedSize);
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this._zlibs[streamId].setInput(data);
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data = this._zlibs[streamId].inflate(uncompressedSize);
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this._zlibs[streamId].setInput(null);
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}
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// Convert indexed (palette based) image data to RGB
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@ -19,12 +19,20 @@ export default class Inflate {
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inflateInit(this.strm, this.windowBits);
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}
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inflate(data, expected) {
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this.strm.input = data;
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this.strm.avail_in = this.strm.input.length;
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this.strm.next_in = 0;
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this.strm.next_out = 0;
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setInput(data) {
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if (!data) {
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//FIXME: flush remaining data.
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this.strm.input = null;
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this.strm.avail_in = 0;
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this.strm.next_in = 0;
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} else {
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this.strm.input = data;
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this.strm.avail_in = this.strm.input.length;
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this.strm.next_in = 0;
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}
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}
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inflate(expected) {
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// resize our output buffer if it's too small
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// (we could just use multiple chunks, but that would cause an extra
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// allocation each time to flatten the chunks)
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@ -33,6 +41,7 @@ export default class Inflate {
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this.strm.output = new Uint8Array(this.chunkSize);
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}
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this.strm.next_out = 0;
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this.strm.avail_out = this.chunkSize;
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let ret = inflate(this.strm, 0); // Flush argument not used.
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