Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 | 1x 16x 16x 182x 182x 182x 182x 182x 182x 182x 182x 16x 196x 98x 1x 16x 16x 16x 1x 1x | // import { mat4, vec3 } from 'gl-matrix';
import * as macro from 'vtk.js/Sources/macros';
import vtkViewNode from 'vtk.js/Sources/Rendering/SceneGraph/ViewNode';
import { registerOverride } from 'vtk.js/Sources/Rendering/OpenGL/ViewNodeFactory';
const { vtkDebugMacro } = macro;
// ----------------------------------------------------------------------------
// vtkOpenGLPixelSpaceCallbackMapper methods
// ----------------------------------------------------------------------------
function vtkOpenGLPixelSpaceCallbackMapper(publicAPI, model) {
model.classHierarchy.push('vtkOpenGLPixelSpaceCallbackMapper');
publicAPI.opaquePass = (prepass, renderPass) => {
model._openGLRenderer =
publicAPI.getFirstAncestorOfType('vtkOpenGLRenderer');
model._openGLRenderWindow = model._openGLRenderer.getLastAncestorOfType(
'vtkOpenGLRenderWindow'
);
const aspectRatio = model._openGLRenderer.getAspectRatio();
const camera = model._openGLRenderer
? model._openGLRenderer.getRenderable().getActiveCamera()
: null;
const tsize = model._openGLRenderer.getTiledSizeAndOrigin();
let texels = null;
Iif (model.renderable.getUseZValues()) {
const zbt = renderPass.getZBufferTexture();
const width = Math.floor(zbt.getWidth());
const height = Math.floor(zbt.getHeight());
const gl = model._openGLRenderWindow.getContext();
zbt.bind();
// Here we need to use vtkFramebuffer to save current settings (bindings/buffers)
const fb = renderPass.getFramebuffer();
if (!fb) {
vtkDebugMacro('No framebuffer to save/restore');
} else {
// save framebuffer settings
fb.saveCurrentBindingsAndBuffers();
}
const framebuffer = gl.createFramebuffer();
gl.bindFramebuffer(gl.FRAMEBUFFER, framebuffer);
gl.framebufferTexture2D(
gl.FRAMEBUFFER,
gl.COLOR_ATTACHMENT0,
gl.TEXTURE_2D,
zbt.getHandle(),
0
);
if (
gl.checkFramebufferStatus(gl.FRAMEBUFFER) === gl.FRAMEBUFFER_COMPLETE
) {
texels = new Uint8Array(width * height * 4);
gl.viewport(0, 0, width, height);
gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, texels);
}
// Now we need to restore framebuffer bindings/buffers
if (fb) {
fb.restorePreviousBindingsAndBuffers();
}
gl.deleteFramebuffer(framebuffer);
}
model.renderable.invokeCallback(
model.renderable.getInputData(),
camera,
aspectRatio,
tsize,
texels
);
};
publicAPI.queryPass = (prepass, renderPass) => {
if (prepass) {
Iif (model.renderable.getUseZValues()) {
renderPass.requestDepth();
}
}
};
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Inheritance
vtkViewNode.extend(publicAPI, model, initialValues);
// Object methods
vtkOpenGLPixelSpaceCallbackMapper(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(
extend,
'vtkOpenGLPixelSpaceCallbackMapper'
);
// ----------------------------------------------------------------------------
export default { newInstance, extend };
// Register ourself to OpenGL backend if imported
registerOverride('vtkPixelSpaceCallbackMapper', newInstance);
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