webgl: renderImage now correct except for final copy; untabify all
This commit is contained in:
Zellyn Hunter
parent
dba6c94236
commit
1881b62f3a
134
index.html
134
index.html
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@ -52,108 +52,108 @@ void main() {
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<div class="controls">
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<table>
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<tr>
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<td>Decoder</td>
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<td>
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<select id="decoder">
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<option value="COMPOSITE_YUV">Composite Y'UV</option>
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<option value="COMPOSITE_YIQ">Composite Y'IQ</option>
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<option value="COMPOSITE_CXA2025AS">Composite CXA2025AS</option>
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</select>
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</td>
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<td>Decoder</td>
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<td>
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<select id="decoder">
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<option value="COMPOSITE_YUV">Composite Y'UV</option>
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<option value="COMPOSITE_YIQ">Composite Y'IQ</option>
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<option value="COMPOSITE_CXA2025AS">Composite CXA2025AS</option>
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</select>
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</td>
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</tr>
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<tr>
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<td>Brightness</td>
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<td><input type="range" min="-1" max="1" step="0.01" value="0" class="slider" id="videoBrightness"></td>
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<td>Brightness</td>
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<td><input type="range" min="-1" max="1" step="0.01" value="0" class="slider" id="videoBrightness"></td>
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</tr>
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<tr>
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<td>Contrast</td>
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<td><input type="range" min="0" max="2" step="0.01" value="1" class="slider" id="videoContrast"></td>
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<td>Contrast</td>
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<td><input type="range" min="0" max="2" step="0.01" value="1" class="slider" id="videoContrast"></td>
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</tr>
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<tr>
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<td>Saturation</td>
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<td><input type="range" min="0" max="2" step="0.01" value="1" class="slider" id="videoSaturation"></td>
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<td>Saturation</td>
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<td><input type="range" min="0" max="2" step="0.01" value="1" class="slider" id="videoSaturation"></td>
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</tr>
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<tr>
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<td>Hue</td>
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<td><input type="range" min="-0.5" max="0.5" step="0.01" value="0" class="slider" id="videoHue"></td>
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<td>Hue</td>
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<td><input type="range" min="-0.5" max="0.5" step="0.01" value="0" class="slider" id="videoHue"></td>
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</tr>
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<tr>
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<td>White Only</td>
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<td><input type="checkbox" id="white-only"></td>
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<td>White Only</td>
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<td><input type="checkbox" id="white-only"></td>
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</tr>
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<tr>
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<td>Horizontal Center</td>
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<td><input type="range" min="-0.1" max="0.1" step="0.01" value="0" class="slider" id="videoHorizontalCenter"></td>
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<td>Horizontal Center</td>
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<td><input type="range" min="-0.1" max="0.1" step="0.01" value="0" class="slider" id="videoHorizontalCenter"></td>
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</tr>
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<tr>
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<td>Horizontal Size</td>
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<td><input type="range" min="0.85" max="1.25" step="0.01" value="1.05" class="slider" id="videoHorizontalSize"></td>
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<td>Horizontal Size</td>
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<td><input type="range" min="0.85" max="1.25" step="0.01" value="1.05" class="slider" id="videoHorizontalSize"></td>
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</tr>
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<tr>
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<td>Vertical Center</td>
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<td><input type="range" min="-0.1" max="0.1" step="0.01" value="0" class="slider" id="videoVerticalCenter"></td>
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<td>Vertical Center</td>
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<td><input type="range" min="-0.1" max="0.1" step="0.01" value="0" class="slider" id="videoVerticalCenter"></td>
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</tr>
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<tr>
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<td>Vertical Size</td>
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<td><input type="range" min="0.85" max="1.25" step="0.01" value="1.05" class="slider" id="videoVerticalSize"></td>
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<td>Vertical Size</td>
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<td><input type="range" min="0.85" max="1.25" step="0.01" value="1.05" class="slider" id="videoVerticalSize"></td>
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</tr>
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<tr>
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<td>Luma Bandwidth</td>
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<td><input type="range" min="0" max="7159090" step="1" value="2000000" class="slider" id="videoLumaBandwidth"></td>
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<td>Luma Bandwidth</td>
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<td><input type="range" min="0" max="7159090" step="1" value="2000000" class="slider" id="videoLumaBandwidth"></td>
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</tr>
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<tr>
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<td>Chroma Bandwidth</td>
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<td><input type="range" min="0" max="7159090" step="1" value="600000" class="slider" id="videoChromaBandwidth"></td>
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<td>Chroma Bandwidth</td>
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<td><input type="range" min="0" max="7159090" step="1" value="600000" class="slider" id="videoChromaBandwidth"></td>
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</tr>
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<tr>
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<td>B/W Bandwidth</td>
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<td><input type="range" min="0" max="7159090" step="1" value="6000000" class="slider" id="videoBandwidth"></td>
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<td>B/W Bandwidth</td>
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<td><input type="range" min="0" max="7159090" step="1" value="6000000" class="slider" id="videoBandwidth"></td>
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</tr>
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<tr>
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<td>Barrel</td>
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<td><input type="range" min="0" max="1" step="0.01" value="0.05" class="slider" id="displayBarrel"></td>
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<td>Barrel</td>
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<td><input type="range" min="0" max="1" step="0.01" value="0.05" class="slider" id="displayBarrel"></td>
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</tr>
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<tr>
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<td>Scanline Level</td>
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<td><input type="range" min="0" max="1" step="0.01" value="0.05" class="slider" id="displayScanlineLevel"></td>
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<td>Scanline Level</td>
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<td><input type="range" min="0" max="1" step="0.01" value="0.05" class="slider" id="displayScanlineLevel"></td>
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</tr>
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<tr>
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<td>Shadow Mask Level</td>
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<td><input type="range" min="0" max="1" step="0.01" value="0.05" class="slider" id="displayShadowMaskLevel"></td>
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<td>Shadow Mask Level</td>
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<td><input type="range" min="0" max="1" step="0.01" value="0.05" class="slider" id="displayShadowMaskLevel"></td>
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</tr>
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<tr>
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<td>Shadow Mask Dot Pitch</td>
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<td><input type="range" min="0" max="2" step="0.01" value="0.5" class="slider" id="displayShadowMaskDotPitch"></td>
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<td>Shadow Mask Dot Pitch</td>
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<td><input type="range" min="0" max="2" step="0.01" value="0.5" class="slider" id="displayShadowMaskDotPitch"></td>
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</tr>
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<tr>
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<td>Shadow Mask</td>
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<td>
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<select id="shadow-mask">
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<option value="triad">Triad</option>
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<option value="inline">Inline</option>
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<option value="aperture">Aperture</option>
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<option value="lcd">LCD</option>
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<option value="bayer">Bayer</option>
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</select>
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</td>
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<td>Shadow Mask</td>
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<td>
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<select id="shadow-mask">
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<option value="triad">Triad</option>
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<option value="inline">Inline</option>
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<option value="aperture">Aperture</option>
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<option value="lcd">LCD</option>
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<option value="bayer">Bayer</option>
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</select>
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</td>
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</tr>
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<tr>
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<td>Persistence</td>
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<td><input type="range" min="0" max="1" step="0.01" value="0" class="slider" id="displayPersistence"></td>
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<td>Persistence</td>
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<td><input type="range" min="0" max="1" step="0.01" value="0" class="slider" id="displayPersistence"></td>
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</tr>
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<tr>
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<td>Center Lighting</td>
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<td><input type="range" min="0" max="1" step="0.01" value="1" class="slider" id="displayCenterLighting"></td>
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<td>Center Lighting</td>
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<td><input type="range" min="0" max="1" step="0.01" value="1" class="slider" id="displayCenterLighting"></td>
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</tr>
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<tr>
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<td>Luminance Gain</td>
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<td><input type="range" min="1" max="2" step="0.01" value="1" class="slider" id="displayLuminanceGain"></td>
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<td>Luminance Gain</td>
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<td><input type="range" min="1" max="2" step="0.01" value="1" class="slider" id="displayLuminanceGain"></td>
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</tr>
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</table>
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</div>
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<div class="screen">
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<canvas id="c"></canvas>
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<canvas id="d"></canvas>
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<canvas id="d" width="755" height="240"></canvas>
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</div>
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</div><!-- class="wrapper" -->
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<script>
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@ -218,16 +218,32 @@ void main() {
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gl.drawArrays(primitiveType, offset, count);
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// screenEmu.loadImage("images/airheart-560x192.png").then(image => {
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// let c = screenEmu.screenData(image, screenEmu.C.NTSC_DETAILS);
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// let [c, data] = screenEmu.screenData(image, screenEmu.C.NTSC_DETAILS);
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// document.body.appendChild(c);
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// });
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async function tryScreenView() {
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const image = await screenEmu.loadImage("images/airheart-560x192.png");
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const [imageCanvas, imageData] = screenEmu.screenData(image, screenEmu.C.NTSC_DETAILS);
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let canvas = document.getElementById("d");
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let sv = new screenEmu.ScreenView(canvas);
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await sv.initOpenGL();
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let imageInfo = new screenEmu.ImageInfo(0, 0, 0, 0, 0, 0, new ImageData(10, 10));
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const sampleRate = 4 * screenEmu.C.NTSC_DETAILS.fsc;
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const blackLevel = 0;
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const whiteLevel = 1;
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const subCarrier = screenEmu.C.NTSC_DETAILS.fsc;
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const colorBurst = screenEmu.C.NTSC_DETAILS.colorBurst;
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const phaseAlternation = [false];
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let imageInfo = new screenEmu.ImageInfo(
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sampleRate,
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blackLevel,
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whiteLevel,
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subCarrier,
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colorBurst,
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phaseAlternation,
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imageData);
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let displayConfig = new screenEmu.DisplayConfiguration();
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sv.image = imageInfo;
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sv.displayConfiguration = displayConfig;
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356
screenEmu.js
356
screenEmu.js
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@ -52,16 +52,16 @@ const screenEmu = (function () {
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// From AppleIIVideo::updateTiming
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const ntscClockFrequency = NTSC_4FSC * HORIZ_TOTAL / 912;
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const ntscVisibleRect = [[ntscClockFrequency * NTSC_HSTART, NTSC_VSTART],
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[ntscClockFrequency * NTSC_HLENGTH, NTSC_VLENGTH]];
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[ntscClockFrequency * NTSC_HLENGTH, NTSC_VLENGTH]];
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const ntscDisplayRect = [[HORIZ_START, VERT_NTSC_START],
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[HORIZ_DISPLAY, VERT_DISPLAY]];
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[HORIZ_DISPLAY, VERT_DISPLAY]];
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const ntscVertTotal = NTSC_VTOTAL;
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const palClockFrequency = 14250450.0 * HORIZ_TOTAL / 912;
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const palVisibleRect = [[palClockFrequency * PAL_HSTART, PAL_VSTART],
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[palClockFrequency * PAL_HLENGTH, PAL_VLENGTH]];
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[palClockFrequency * PAL_HLENGTH, PAL_VLENGTH]];
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const palDisplayRect = [[HORIZ_START, VERT_PAL_START],
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[HORIZ_DISPLAY, VERT_DISPLAY]];
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[HORIZ_DISPLAY, VERT_DISPLAY]];
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const palVertTotal = PAL_VTOTAL;
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const VERTEX_SHADER =`
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@ -208,7 +208,7 @@ void main(void)
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}
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`;
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function buildTiming(clockFrequency, displayRect, visibleRect, vertTotal) {
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function buildTiming(clockFrequency, displayRect, visibleRect, vertTotal, fsc) {
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const vertStart = displayRect[0][1];
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// Total number of CPU cycles per frame: 17030 for NTSC.
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const frameCycleNum = HORIZ_TOTAL * vertTotal;
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@ -216,7 +216,7 @@ void main(void)
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const horizStart = Math.floor(displayRect[0][0]);
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// imageSize is [14 * visible rect width in cells, visible lines]
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const imageSize = [Math.floor(CELL_WIDTH * visibleRect[1][0]),
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Math.floor(visibleRect[1][1])];
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Math.floor(visibleRect[1][1])];
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// imageLeft is # of pixels from first visible point to first displayed point.
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const imageLeft = Math.floor((horizStart-visibleRect[0][0]) * CELL_WIDTH);
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const colorBurst = [2 * Math.PI * (-33/360 + (imageLeft % 4) / 4)];
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@ -228,6 +228,7 @@ void main(void)
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const topLeft80Col = [imageLeft - CELL_WIDTH/2, vertStart - visibleRect[0][1]];
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return {
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fsc: fsc,
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clockFrequency: clockFrequency,
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displayRect: displayRect,
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visibleRect: visibleRect,
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@ -311,11 +312,11 @@ void main(void)
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const vec = this.data;
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let sum = 0;
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for (const item of vec) {
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sum += item;
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sum += item;
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}
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const gain = 1/sum;
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for (const i in vec) {
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vec[i] *= gain;
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vec[i] *= gain;
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}
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return this;
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}
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@ -324,17 +325,17 @@ void main(void)
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mul(other) {
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const w = new Vector(0);
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if ((typeof other != "number") && (this.data.length != other.data.length)) {
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return w;
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return w;
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}
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w.data = new Float32Array(this.data);
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for (let i = 0; i < w.data.length; i++) {
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if (typeof other == "number") {
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w.data[i] *= other;
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} else {
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w.data[i] *= other.data[i];
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}
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if (typeof other == "number") {
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w.data[i] *= other;
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} else {
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w.data[i] *= other.data[i];
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}
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}
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return w;
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@ -344,15 +345,15 @@ void main(void)
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const size = this.data.length;
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const w = new Vector(size);
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for (let i = 0; i < size; i++) {
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const omega = 2 * Math.PI * i / size;
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const omega = 2 * Math.PI * i / size;
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for (let j = 0; j < size; j++) {
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w.data[i] += this.data[j] * Math.cos(j * omega);
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}
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for (let j = 0; j < size; j++) {
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w.data[i] += this.data[j] * Math.cos(j * omega);
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}
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}
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for (let i = 0; i < size; i++) {
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w.data[i] /= size;
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w.data[i] /= size;
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}
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return w;
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@ -361,7 +362,7 @@ void main(void)
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resize(n) {
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const newData = new Float32Array(n);
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for (let i=0; i < Math.min(newData.length, this.data.length); i++) {
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newData[i] = this.data[i];
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newData[i] = this.data[i];
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}
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this.data = newData;
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return this;
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@ -378,11 +379,11 @@ void main(void)
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const alpha = Math.cosh(Math.acosh(Math.pow(10, sidelobeDb / 20)) / m);
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for (let i = 0; i < m; i++) {
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const a = Math.abs(alpha * Math.cos(Math.PI * i / m));
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if (a > 1)
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w.data[i] = Math.pow(-1, i) * Math.cosh(m * Math.acosh(a));
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else
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w.data[i] = Math.pow(-1, i) * Math.cos(m * Math.acos(a));
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const a = Math.abs(alpha * Math.cos(Math.PI * i / m));
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if (a > 1)
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w.data[i] = Math.pow(-1, i) * Math.cosh(m * Math.acosh(a));
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else
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w.data[i] = Math.pow(-1, i) * Math.cos(m * Math.acos(a));
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}
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w = w.realIDFT();
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@ -393,7 +394,7 @@ void main(void)
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const max = w.data.reduce((prev, cur) => Math.max(prev, Math.abs(cur)));
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for (const i in w.data) {
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w.data[i] /= max;
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w.data[i] /= max;
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}
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return w;
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@ -406,9 +407,9 @@ void main(void)
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const halfN = Math.floor(n / 2);
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for (let i = 0; i < n; i++) {
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const x = 2 * Math.PI * fc * (i - halfN);
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const x = 2 * Math.PI * fc * (i - halfN);
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v.data[i] = (x == 0.0) ? 1.0 : Math.sin(x) / x;
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v.data[i] = (x == 0.0) ? 1.0 : Math.sin(x) / x;
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}
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return v;
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@ -418,8 +419,8 @@ void main(void)
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const Matrix3 = class {
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constructor(c00, c01, c02,
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c10, c11, c12,
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c20, c21, c22) {
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c10, c11, c12,
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c20, c21, c22) {
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this.data = new Float32Array([c00, c01, c02, c10, c11, c12, c20, c21, c22]);
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}
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@ -430,15 +431,15 @@ void main(void)
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mul(val) {
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const m = new Matrix3(0,0,0,0,0,0,0,0,0);
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if (typeof val == "number") {
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m.data = m.data.map(x => x * val);
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m.data = this.data.map(x => x * val);
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} else {
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for (let i = 0; i < 3; i++) {
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for (let j = 0; j < 3; j++) {
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for (let k = 0; k < 3; k++) {
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m.data[i * 3 + j] += val.data[i * 3 + k] * this.data[k * 3 + j];
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||||
}
|
||||
}
|
||||
}
|
||||
for (let i = 0; i < 3; i++) {
|
||||
for (let j = 0; j < 3; j++) {
|
||||
for (let k = 0; k < 3; k++) {
|
||||
m.data[i * 3 + j] += val.data[i * 3 + k] * this.data[k * 3 + j];
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return m;
|
||||
}
|
||||
|
|
@ -446,12 +447,12 @@ void main(void)
|
|||
|
||||
// https://codereview.stackexchange.com/a/128619
|
||||
const loadImage = path =>
|
||||
new Promise((resolve, reject) => {
|
||||
const img = new Image();
|
||||
img.onload = () => resolve(img);
|
||||
img.onerror = () => reject(`error loading '${path}'`);
|
||||
img.src = path;
|
||||
});
|
||||
new Promise((resolve, reject) => {
|
||||
const img = new Image();
|
||||
img.onload = () => resolve(img);
|
||||
img.onerror = () => reject(`error loading '${path}'`);
|
||||
img.src = path;
|
||||
});
|
||||
|
||||
// Given an image that's 560x192, render it into the larger space
|
||||
// required for NTSC or PAL.
|
||||
|
|
@ -461,7 +462,7 @@ void main(void)
|
|||
const screenData = (image, details) => {
|
||||
if ((image.naturalWidth != 560) || (image.naturalHeight != 192)) {
|
||||
throw new Error('screenData expects an image 560x192;' +
|
||||
` got ${image.naturalWidth}x${image.naturalHeight}`);
|
||||
` got ${image.naturalWidth}x${image.naturalHeight}`);
|
||||
}
|
||||
const canvas = document.createElement('canvas');
|
||||
const context = canvas.getContext('2d');
|
||||
|
|
@ -472,8 +473,22 @@ void main(void)
|
|||
context.fillStyle = 'rgba(0,0,0,1)';
|
||||
context.fillRect(0, 0, width, height);
|
||||
context.drawImage(image, details.topLeft80Col[0], details.topLeft80Col[1]);
|
||||
// const myData = context.getImageData(0, 0, image.naturalWidth, image.naturalHeight);
|
||||
return canvas;
|
||||
const imageData = context.getImageData(0, 0, width, height);
|
||||
return [canvas, imageData];
|
||||
};
|
||||
|
||||
// Given an ImageData (RGBA), convert to luminance by taking the max
|
||||
// of (R,G,B) for each pixel. Return a Uint8Array.
|
||||
const luminanceData = (imageData) => {
|
||||
const width = imageData.width;
|
||||
const height = imageData.height;
|
||||
const data = imageData.data;
|
||||
const size = width * height;
|
||||
const ary = new Uint8Array(size);
|
||||
for (let i = 0; i < size; i++) {
|
||||
ary[i] = Math.max(data[i*4], data[i*4+1], data[i*4+2]);
|
||||
}
|
||||
return ary;
|
||||
};
|
||||
|
||||
const TEXTURE_NAMES = [
|
||||
|
|
@ -566,17 +581,17 @@ void main(void)
|
|||
this.videoHue = 0;
|
||||
this.videoCenter = [0,0];
|
||||
this.videoSize = [1,1];
|
||||
this.videoBandwidth = 14318180;
|
||||
this.videoLumaBandwidth = 600000;
|
||||
this.videoChromaBandwidth = 2000000;
|
||||
this.videoBandwidth = 6000000; // 14318180;
|
||||
this.videoLumaBandwidth = 2000000; // 600000;
|
||||
this.videoChromaBandwidth = 600000; // 2000000;
|
||||
this.videoWhiteOnly = false;
|
||||
|
||||
this.displayResolution = [640, 480];
|
||||
this.displayPixelDensity = 72;
|
||||
this.displayBarrel = 0;
|
||||
this.displayScanlineLevel = 0;
|
||||
this.displayShadowMaskLevel = 0;
|
||||
this.displayShadowMaskDotPitch = 1;
|
||||
this.displayBarrel = 0.05; // 0;
|
||||
this.displayScanlineLevel = 0.05; // 0;
|
||||
this.displayShadowMaskLevel = 0.05; // 0;
|
||||
this.displayShadowMaskDotPitch = 0.5; // 1;
|
||||
this.displayShadowMask = "SHADOWMASK_TRIAD";
|
||||
this.displayPersistence = 0;
|
||||
this.displayCenterLighting = 1;
|
||||
|
|
@ -589,12 +604,12 @@ void main(void)
|
|||
// image data.
|
||||
const ImageInfo = class {
|
||||
constructor(sampleRate, blackLevel, whiteLevel, subCarrier, colorBurst,
|
||||
phaseAlternation, data) {
|
||||
phaseAlternation, data) {
|
||||
if (typeof data != "object") {
|
||||
throw new Error(`want typeof data == 'object'; got '${typeof data}'`);
|
||||
throw new Error(`want typeof data == 'object'; got '${typeof data}'`);
|
||||
}
|
||||
if (!(data instanceof ImageData)) {
|
||||
throw new Error(`want data instanceof ImageData; got '${data.constructor.name}'`);
|
||||
throw new Error(`want data instanceof ImageData; got '${data.constructor.name}'`);
|
||||
}
|
||||
this.sampleRate = sampleRate;
|
||||
this.blackLevel = blackLevel;
|
||||
|
|
@ -623,7 +638,7 @@ void main(void)
|
|||
const gl = canvas.getContext("webgl");
|
||||
const float_texture_ext = gl.getExtension('OES_texture_float');
|
||||
if (float_texture_ext == null) {
|
||||
throw new Error("WebGL extension 'OES_texture_float' unavailable");
|
||||
throw new Error("WebGL extension 'OES_texture_float' unavailable");
|
||||
}
|
||||
|
||||
this.canvas = canvas;
|
||||
|
|
@ -667,11 +682,11 @@ void main(void)
|
|||
this.textures = {};
|
||||
|
||||
for (let name of TEXTURE_NAMES) {
|
||||
this.textures[name] = new TextureInfo(0, 0, gl.createTexture());
|
||||
this.textures[name] = new TextureInfo(0, 0, gl.createTexture());
|
||||
}
|
||||
|
||||
for (let name of BUFFER_NAMES) {
|
||||
this.buffers[name] = gl.createBuffer();
|
||||
this.buffers[name] = gl.createBuffer();
|
||||
}
|
||||
|
||||
await this.loadTextures();
|
||||
|
|
@ -686,11 +701,11 @@ void main(void)
|
|||
const gl = this.gl;
|
||||
|
||||
for (let name of TEXTURE_NAMES) {
|
||||
gl.deleteTexture(this.textures[name].glTexture);
|
||||
gl.deleteTexture(this.textures[name].glTexture);
|
||||
}
|
||||
|
||||
for (let name of BUFFER_NAMES) {
|
||||
gl.deleteBuffer(this.buffers[name]);
|
||||
gl.deleteBuffer(this.buffers[name]);
|
||||
}
|
||||
|
||||
this.deleteShaders();
|
||||
|
|
@ -698,11 +713,11 @@ void main(void)
|
|||
|
||||
loadTextures() {
|
||||
return Promise.all([
|
||||
this.loadTexture("textures/Shadow Mask Triad.png", true, "SHADOWMASK_TRIAD"),
|
||||
this.loadTexture("textures/Shadow Mask Inline.png", true, "SHADOWMASK_INLINE"),
|
||||
this.loadTexture("textures/Shadow Mask Aperture.png", true, "SHADOWMASK_APERTURE"),
|
||||
this.loadTexture("textures/Shadow Mask LCD.png", true, "SHADOWMASK_LCD"),
|
||||
this.loadTexture("textures/Shadow Mask Bayer.png", true, "SHADOWMASK_BAYER"),
|
||||
this.loadTexture("textures/Shadow Mask Triad.png", true, "SHADOWMASK_TRIAD"),
|
||||
this.loadTexture("textures/Shadow Mask Inline.png", true, "SHADOWMASK_INLINE"),
|
||||
this.loadTexture("textures/Shadow Mask Aperture.png", true, "SHADOWMASK_APERTURE"),
|
||||
this.loadTexture("textures/Shadow Mask LCD.png", true, "SHADOWMASK_LCD"),
|
||||
this.loadTexture("textures/Shadow Mask Bayer.png", true, "SHADOWMASK_BAYER"),
|
||||
]);
|
||||
}
|
||||
|
||||
|
|
@ -712,9 +727,9 @@ void main(void)
|
|||
const image = await loadImage(path);
|
||||
gl.bindTexture(gl.TEXTURE_2D, texInfo.glTexture);
|
||||
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA,
|
||||
gl.RGBA, gl.UNSIGNED_BYTE, image);
|
||||
gl.RGBA, gl.UNSIGNED_BYTE, image);
|
||||
if (isMipMap) {
|
||||
gl.generateMipmap(gl.TEXTURE_2D);
|
||||
gl.generateMipmap(gl.TEXTURE_2D);
|
||||
}
|
||||
|
||||
texInfo.width = image.naturalWidth;
|
||||
|
|
@ -738,10 +753,10 @@ void main(void)
|
|||
|
||||
deleteShaders() {
|
||||
for (let name of SHADER_NAMES) {
|
||||
if (this.shaders[name]) {
|
||||
this.gl.deleteProgram(this.shaders[name]);
|
||||
this.shaders[name] = false;
|
||||
}
|
||||
if (this.shaders[name]) {
|
||||
this.gl.deleteProgram(this.shaders[name]);
|
||||
this.shaders[name] = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -753,27 +768,27 @@ void main(void)
|
|||
|
||||
// if viewport size has changed:
|
||||
if ((this.viewportSize.width != canvasWidth)
|
||||
|| (this.viewportSize.height != this.canvasHeight)) {
|
||||
this.viewportSize = new Size(canvasWidth, canvasHeight);
|
||||
gl.viewport(0, 0, canvasWidth, canvasHeight);
|
||||
this.configurationChanged = true;
|
||||
|| (this.viewportSize.height != this.canvasHeight)) {
|
||||
this.viewportSize = new Size(canvasWidth, canvasHeight);
|
||||
gl.viewport(0, 0, canvasWidth, canvasHeight);
|
||||
this.configurationChanged = true;
|
||||
}
|
||||
|
||||
if (this.imageChanged) {
|
||||
this.uploadImage();
|
||||
this.uploadImage();
|
||||
}
|
||||
|
||||
if (this.configurationChanged) {
|
||||
this.configureShaders();
|
||||
this.configureShaders();
|
||||
}
|
||||
|
||||
if (this.imageChanged || this.configurationChanged) {
|
||||
this.renderImage();
|
||||
this.renderImage();
|
||||
}
|
||||
|
||||
if (this.imageChanged || this.configurationChanged ||
|
||||
this.image.displayPersistence != 0) {
|
||||
this.drawDisplayCanvas();
|
||||
this.image.displayPersistence != 0) {
|
||||
this.drawDisplayCanvas();
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -786,20 +801,23 @@ void main(void)
|
|||
gl.bindTexture(gl.TEXTURE_2D, texInfoImage.glTexture);
|
||||
const format = gl.LUMINANCE;
|
||||
const type = gl.UNSIGNED_BYTE;
|
||||
const luminance = luminanceData(image.data);
|
||||
gl.texSubImage2D(gl.TEXTURE_2D, 0,
|
||||
0, 0, // xoffset, yoffset
|
||||
format, type, image.data);
|
||||
0, 0, // xoffset, yoffset
|
||||
image.data.width,
|
||||
image.data.height,
|
||||
format, type, luminance);
|
||||
|
||||
// Update configuration
|
||||
if ((image.sampleRate != this.imageSampleRate) ||
|
||||
(image.blackLevel != this.imageBlackLevel) ||
|
||||
(image.whiteLevel != this.imageWhiteLevel) ||
|
||||
(image.subcarrier != this.imageSubcarrier))
|
||||
(image.subCarrier != this.imageSubcarrier))
|
||||
{
|
||||
this.imageSampleRate = image.sampleRate;
|
||||
this.imageBlackLevel = image.blackLevel;
|
||||
this.imageWhiteLevel = image.whiteLevel;
|
||||
this.imageSubcarrier = image.subcarrier;
|
||||
this.imageSubcarrier = image.subCarrier;
|
||||
|
||||
this.configurationChanged = true;
|
||||
}
|
||||
|
|
@ -812,26 +830,26 @@ void main(void)
|
|||
const phaseInfo = new Float32Array(3 * texHeight);
|
||||
|
||||
for (let x = 0; x < image.height; x++) {
|
||||
const c = colorBurst[x % colorBurst.length] / 2 / Math.PI;
|
||||
phaseInfo[3 * x + 0] = c - Math.floor(c);
|
||||
phaseInfo[3 * x + 1] = phaseAlternation[x % phaseAlternation.length];
|
||||
const c = colorBurst[x % colorBurst.length] / 2 / Math.PI;
|
||||
phaseInfo[3 * x + 0] = c - Math.floor(c);
|
||||
phaseInfo[3 * x + 1] = phaseAlternation[x % phaseAlternation.length];
|
||||
}
|
||||
|
||||
const texInfoPhase = this.textures["IMAGE_PHASEINFO"];
|
||||
gl.bindTexture(gl.TEXTURE_2D, texInfoPhase.glTexture);
|
||||
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, 1, texHeight, 0,
|
||||
gl.RGB, gl.FLOAT, phaseInfo);
|
||||
gl.RGB, gl.FLOAT, phaseInfo);
|
||||
}
|
||||
|
||||
getRenderShader() {
|
||||
switch (this.display.videoDecoder) {
|
||||
case "CANVAS_RGB":
|
||||
case "CANVAS_MONOCHROME":
|
||||
return [this.shaders["RGB"], "RGB"];
|
||||
return [this.shaders["RGB"], "RGB"];
|
||||
case "CANVAS_YUV":
|
||||
case "CANVAS_YIQ":
|
||||
case "CANVAS_CXA2025AS":
|
||||
return [this.shaders["COMPOSITE"], "COMPOSITE"];
|
||||
return [this.shaders["COMPOSITE"], "COMPOSITE"];
|
||||
}
|
||||
return [null, null];
|
||||
}
|
||||
|
|
@ -843,7 +861,7 @@ void main(void)
|
|||
const displayShader = this.shaders["DISPLAY"];
|
||||
|
||||
if (!renderShader || !displayShader)
|
||||
return;
|
||||
return;
|
||||
|
||||
const isCompositeDecoder = (renderShaderName == "COMPOSITE");
|
||||
|
||||
|
|
@ -852,8 +870,8 @@ void main(void)
|
|||
|
||||
// Subcarrier
|
||||
if (isCompositeDecoder) {
|
||||
gl.uniform1f(gl.getUniformLocation(renderShader, "subcarrier"),
|
||||
this.imageSubcarrier / this.imageSampleRate);
|
||||
gl.uniform1f(gl.getUniformLocation(renderShader, "subcarrier"),
|
||||
this.imageSubcarrier / this.imageSampleRate);
|
||||
}
|
||||
|
||||
// Filters
|
||||
|
|
@ -864,12 +882,12 @@ void main(void)
|
|||
const bandwidth = this.display.videoBandwidth / this.imageSampleRate;
|
||||
|
||||
if (isCompositeDecoder) {
|
||||
let yBandwidth = this.display.videoLumaBandwidth / this.imageSampleRate;
|
||||
let uBandwidth = this.display.videoChromaBandwidth / this.imageSampleRate;
|
||||
let vBandwidth = uBandwidth;
|
||||
let yBandwidth = this.display.videoLumaBandwidth / this.imageSampleRate;
|
||||
let uBandwidth = this.display.videoChromaBandwidth / this.imageSampleRate;
|
||||
let vBandwidth = uBandwidth;
|
||||
|
||||
if (this.display.videoDecoder == "CANVAS_YIQ")
|
||||
uBandwidth = uBandwidth + NTSC_IQ_DELTA / this.imageSampleRate;
|
||||
if (this.display.videoDecoder == "CANVAS_YIQ")
|
||||
uBandwidth = uBandwidth + NTSC_IQ_DELTA / this.imageSampleRate;
|
||||
|
||||
// Switch to video bandwidth when no subcarrier
|
||||
if ((this.imageSubcarrier == 0.0) || this.display.videoWhiteOnly)
|
||||
|
|
@ -893,28 +911,28 @@ void main(void)
|
|||
}
|
||||
|
||||
gl.uniform3f(gl.getUniformLocation(renderShader, "c0"),
|
||||
wy.data[8], wu.data[8], wv.data[8]);
|
||||
wy.data[8], wu.data[8], wv.data[8]);
|
||||
gl.uniform3f(gl.getUniformLocation(renderShader, "c1"),
|
||||
wy.data[7], wu.data[7], wv.data[7]);
|
||||
wy.data[7], wu.data[7], wv.data[7]);
|
||||
gl.uniform3f(gl.getUniformLocation(renderShader, "c2"),
|
||||
wy.data[6], wu.data[6], wv.data[6]);
|
||||
wy.data[6], wu.data[6], wv.data[6]);
|
||||
gl.uniform3f(gl.getUniformLocation(renderShader, "c3"),
|
||||
wy.data[5], wu.data[5], wv.data[5]);
|
||||
wy.data[5], wu.data[5], wv.data[5]);
|
||||
gl.uniform3f(gl.getUniformLocation(renderShader, "c4"),
|
||||
wy.data[4], wu.data[4], wv.data[4]);
|
||||
wy.data[4], wu.data[4], wv.data[4]);
|
||||
gl.uniform3f(gl.getUniformLocation(renderShader, "c5"),
|
||||
wy.data[3], wu.data[3], wv.data[3]);
|
||||
wy.data[3], wu.data[3], wv.data[3]);
|
||||
gl.uniform3f(gl.getUniformLocation(renderShader, "c6"),
|
||||
wy.data[2], wu.data[2], wv.data[2]);
|
||||
wy.data[2], wu.data[2], wv.data[2]);
|
||||
gl.uniform3f(gl.getUniformLocation(renderShader, "c7"),
|
||||
wy.data[1], wu.data[1], wv.data[1]);
|
||||
wy.data[1], wu.data[1], wv.data[1]);
|
||||
gl.uniform3f(gl.getUniformLocation(renderShader, "c8"),
|
||||
wy.data[0], wu.data[0], wv.data[0]);
|
||||
wy.data[0], wu.data[0], wv.data[0]);
|
||||
|
||||
// Decoder matrix
|
||||
let decoderMatrix = new Matrix3(1, 0, 0,
|
||||
0, 1, 0,
|
||||
0, 0, 1);
|
||||
0, 1, 0,
|
||||
0, 0, 1);
|
||||
|
||||
// Encode
|
||||
if (!isCompositeDecoder) {
|
||||
|
|
@ -942,15 +960,15 @@ void main(void)
|
|||
|
||||
// Saturation
|
||||
decoderMatrix = new Matrix3(1, 0, 0,
|
||||
0, this.display.videoSaturation, 0,
|
||||
0, 0, this.display.videoSaturation).mul(decoderMatrix);
|
||||
0, this.display.videoSaturation, 0,
|
||||
0, 0, this.display.videoSaturation).mul(decoderMatrix);
|
||||
|
||||
// Hue
|
||||
const hue = 2 * Math.PI * this.display.videoHue;
|
||||
|
||||
decoderMatrix = new Matrix3(1, 0, 0,
|
||||
0, Math.cos(hue), -Math.sin(hue),
|
||||
0, Math.sin(hue), Math.cos(hue)).mul(decoderMatrix);
|
||||
0, Math.cos(hue), -Math.sin(hue),
|
||||
0, Math.sin(hue), Math.cos(hue)).mul(decoderMatrix);
|
||||
|
||||
// Decode
|
||||
switch (this.display.videoDecoder) {
|
||||
|
|
@ -988,7 +1006,7 @@ void main(void)
|
|||
0.317, -0.466, 1.677).mul(decoderMatrix);
|
||||
break;
|
||||
default:
|
||||
throw new Error(`unknown videoDecoder: ${this.display.videoDecoder}`);
|
||||
throw new Error(`unknown videoDecoder: ${this.display.videoDecoder}`);
|
||||
}
|
||||
|
||||
// Brightness
|
||||
|
|
@ -1024,7 +1042,7 @@ void main(void)
|
|||
decoderMatrix = decoderMatrix.mul(contrast);
|
||||
|
||||
gl.uniformMatrix3fv(gl.getUniformLocation(renderShader, "decoderMatrix"),
|
||||
false, decoderMatrix.data);
|
||||
false, decoderMatrix.data);
|
||||
|
||||
// Display shader
|
||||
gl.useProgram(displayShader);
|
||||
|
|
@ -1064,7 +1082,7 @@ void main(void)
|
|||
const gl = this.gl;
|
||||
const [renderShader, renderShaderName] = this.getRenderShader();
|
||||
if (!renderShader || !this.shaderEnabled)
|
||||
return;
|
||||
return;
|
||||
|
||||
const isCompositeDecoder = (renderShaderName == "COMPOSITE");
|
||||
|
||||
|
|
@ -1105,7 +1123,7 @@ void main(void)
|
|||
const imageSize = this.image.size;
|
||||
|
||||
for (let y = 0; y < this.image.height; y += this.viewportSize.height) {
|
||||
for (let x = 0; x < this.image.width; x += this.viewportSize.width) {
|
||||
for (let x = 0; x < this.image.width; x += this.viewportSize.width) {
|
||||
// Calculate rects
|
||||
const clipSize = this.viewportSize.copy();
|
||||
|
||||
|
|
@ -1128,54 +1146,54 @@ void main(void)
|
|||
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
|
||||
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
|
||||
|
||||
// What is this, some ancient fixed pipeline nonsense? No way.
|
||||
// What is this, some ancient fixed pipeline nonsense? No way.
|
||||
// glLoadIdentity();
|
||||
|
||||
const positionLocation = gl.getAttribLocation(renderShader, "a_position");
|
||||
const texcoordLocation = gl.getAttribLocation(renderShader, "a_texCoord");
|
||||
const positionBuffer = this.buffers["POSITION"];
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
|
||||
const p_x1 = canvasRect.l;
|
||||
const p_x2 = canvasRect.r;
|
||||
const p_y1 = canvasRect.t;
|
||||
const p_y2 = canvasRect.b;
|
||||
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([
|
||||
p_x1, p_y1,
|
||||
p_x2, p_y1,
|
||||
p_x1, p_y2,
|
||||
p_x1, p_y2,
|
||||
p_x2, p_y1,
|
||||
p_x2, p_y2,
|
||||
]), gl.STATIC_DRAW);
|
||||
const positionLocation = gl.getAttribLocation(renderShader, "a_position");
|
||||
const texcoordLocation = gl.getAttribLocation(renderShader, "a_texCoord");
|
||||
const positionBuffer = this.buffers["POSITION"];
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
|
||||
const p_x1 = canvasRect.l;
|
||||
const p_x2 = canvasRect.r;
|
||||
const p_y1 = canvasRect.t;
|
||||
const p_y2 = canvasRect.b;
|
||||
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([
|
||||
p_x1, p_y1,
|
||||
p_x2, p_y1,
|
||||
p_x1, p_y2,
|
||||
p_x1, p_y2,
|
||||
p_x2, p_y1,
|
||||
p_x2, p_y2,
|
||||
]), gl.STATIC_DRAW);
|
||||
|
||||
const texcoordBuffer = this.buffers["TEXCOORD"];
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, texcoordBuffer);
|
||||
const t_x1 = textureRect.l;
|
||||
const t_x2 = textureRect.r;
|
||||
const t_y1 = textureRect.t;
|
||||
const t_y2 = textureRect.b;
|
||||
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([
|
||||
t_x1, t_y1,
|
||||
t_x2, t_y1,
|
||||
t_x1, t_y2,
|
||||
t_x1, t_y2,
|
||||
t_x2, t_y1,
|
||||
t_x2, t_y2,
|
||||
]), gl.STATIC_DRAW);
|
||||
const texcoordBuffer = this.buffers["TEXCOORD"];
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, texcoordBuffer);
|
||||
const t_x1 = textureRect.l;
|
||||
const t_x2 = textureRect.r;
|
||||
const t_y1 = textureRect.t;
|
||||
const t_y2 = textureRect.b;
|
||||
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([
|
||||
t_x1, t_y1,
|
||||
t_x2, t_y1,
|
||||
t_x1, t_y2,
|
||||
t_x1, t_y2,
|
||||
t_x2, t_y1,
|
||||
t_x2, t_y2,
|
||||
]), gl.STATIC_DRAW);
|
||||
|
||||
gl.clearColor(0, 0, 0, 0);
|
||||
gl.clear(gl.COLOR_BUFFER_BIT);
|
||||
gl.clearColor(0, 0, 0, 0);
|
||||
gl.clear(gl.COLOR_BUFFER_BIT);
|
||||
|
||||
gl.enableVertexAttribArray(positionLocation);
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
|
||||
gl.vertexAttribPointer(positionLocation, 2, gl.FLOAT, false, 0, 0);
|
||||
gl.enableVertexAttribArray(positionLocation);
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
|
||||
gl.vertexAttribPointer(positionLocation, 2, gl.FLOAT, false, 0, 0);
|
||||
|
||||
gl.enableVertexAttribArray(texcoordLocation);
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, texcoordBuffer);
|
||||
gl.vertexAttribPointer(texcoordLocation, 2, gl.FLOAT, false, 0, 0);
|
||||
gl.enableVertexAttribArray(texcoordLocation);
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, texcoordBuffer);
|
||||
gl.vertexAttribPointer(texcoordLocation, 2, gl.FLOAT, false, 0, 0);
|
||||
|
||||
gl.drawArrays(gl.TRIANGLES, 0, 6);
|
||||
}
|
||||
gl.drawArrays(gl.TRIANGLES, 0, 6);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -1193,19 +1211,19 @@ void main(void)
|
|||
const gl = this.gl;
|
||||
const texInfo = this.textures[name];
|
||||
if (!texInfo) {
|
||||
throw new Error(`Cannot find texture named ${name}`);
|
||||
throw new Error(`Cannot find texture named ${name}`);
|
||||
}
|
||||
if (width < 4) width = 4;
|
||||
if (height < 4) height = 4;
|
||||
width = 2**Math.ceil(Math.log2(width));
|
||||
height = 2**Math.ceil(Math.log2(height));
|
||||
if (texInfo.width != width || texInfo.height != height) {
|
||||
texInfo.width = width;
|
||||
texInfo.height = height;
|
||||
gl.bindTexture(gl.TEXTURE_2D, texInfo.glTexture);
|
||||
const dummy = new Uint8Array(width * height);
|
||||
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, width, height, 0,
|
||||
gl.LUMINANCE, gl.UNSIGNED_BYTE, dummy);
|
||||
texInfo.width = width;
|
||||
texInfo.height = height;
|
||||
gl.bindTexture(gl.TEXTURE_2D, texInfo.glTexture);
|
||||
const dummy = new Uint8Array(width * height);
|
||||
gl.texImage2D(gl.TEXTURE_2D, 0, gl.LUMINANCE, width, height, 0,
|
||||
gl.LUMINANCE, gl.UNSIGNED_BYTE, dummy);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1227,9 +1245,9 @@ void main(void)
|
|||
NTSC_Q_CUTOFF: NTSC_Q_CUTOFF,
|
||||
NTSC_IQ_DELTA: NTSC_IQ_DELTA,
|
||||
NTSC_DETAILS: buildTiming(ntscClockFrequency, ntscDisplayRect,
|
||||
ntscVisibleRect, ntscVertTotal),
|
||||
ntscVisibleRect, ntscVertTotal, NTSC_FSC),
|
||||
PAL_DETAILS: buildTiming(palClockFrequency, palDisplayRect,
|
||||
palVisibleRect, palVertTotal),
|
||||
palVisibleRect, palVertTotal, PAL_FSC),
|
||||
},
|
||||
loadImage: loadImage,
|
||||
screenData: screenData,
|
||||
|
|
|
|||
Loading…
Reference in New Issue