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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 | 1x 1x 5229x 5229x 4534x 695x 695x 695x 695x 956x 425x 425x 695x 695x 270x 270x 425x 695x 5229x 5229x 5229x 4851x 378x 378x 378x 378x 378x 378x 1x 7256x 5067x 7256x 7256x 7256x 7256x 5229x 5229x 5229x 2027x 2027x 7256x 1x 1x 1x 3311x 3311x 2808x 503x 503x 519x 503x 503x 503x 503x 503x 519x 503x 503x 503x 3311x 3311x 3311x 3085x 226x 226x 226x 226x 226x 226x 1x 4105x 3280x 4105x 4105x 4105x 4105x 3311x 3311x 3311x 794x 794x 4105x 1x 1x | import { MetadataComponentType } from "@cesium/engine";
import defined from "../Core/defined.js";
import DrawCommand from "../Renderer/DrawCommand.js";
import RenderState from "../Renderer/RenderState.js";
import ShaderSource from "../Renderer/ShaderSource.js";
import MetadataType from "./MetadataType.js";
import MetadataPickingPipelineStage from "./Model/MetadataPickingPipelineStage.js";
/**
* @private
*/
function DerivedCommand() {}
const fragDepthRegex = /\bgl_FragDepth\b/;
const discardRegex = /\bdiscard\b/;
function getDepthOnlyShaderProgram(context, shaderProgram) {
const cachedShader = context.shaderCache.getDerivedShaderProgram(
shaderProgram,
"depthOnly",
);
if (defined(cachedShader)) {
return cachedShader;
}
let fs = shaderProgram.fragmentShaderSource;
let writesDepthOrDiscards = false;
const sources = fs.sources;
for (let i = 0; i < sources.length; ++i) {
if (fragDepthRegex.test(sources[i]) || discardRegex.test(sources[i])) {
writesDepthOrDiscards = true;
break;
}
}
const usesLogDepth = fs.defines.indexOf("LOG_DEPTH") >= 0;
if (!writesDepthOrDiscards && !usesLogDepth) {
const source = `void main()
{
out_FragColor = vec4(1.0);
}
`;
fs = new ShaderSource({
sources: [source],
});
} else Iif (!writesDepthOrDiscards && usesLogDepth) {
const source = `void main()
{
out_FragColor = vec4(1.0);
czm_writeLogDepth();
}
`;
fs = new ShaderSource({
defines: ["LOG_DEPTH"],
sources: [source],
});
}
return context.shaderCache.createDerivedShaderProgram(
shaderProgram,
"depthOnly",
{
vertexShaderSource: shaderProgram.vertexShaderSource,
fragmentShaderSource: fs,
attributeLocations: shaderProgram._attributeLocations,
},
);
}
function getDepthOnlyRenderState(scene, renderState) {
const cache = scene._depthOnlyRenderStateCache;
const cachedDepthOnlyState = cache[renderState.id];
if (defined(cachedDepthOnlyState)) {
return cachedDepthOnlyState;
}
const rs = RenderState.getState(renderState);
rs.depthMask = true;
rs.colorMask = {
red: false,
green: false,
blue: false,
alpha: false,
};
const depthOnlyState = RenderState.fromCache(rs);
cache[renderState.id] = depthOnlyState;
return depthOnlyState;
}
DerivedCommand.createDepthOnlyDerivedCommand = function (
scene,
command,
context,
result,
) {
// For a depth only pass, we bind a framebuffer with only a depth attachment (no color attachments),
// do not write color, and write depth. If the fragment shader doesn't modify the fragment depth
// or discard, the driver can replace the fragment shader with a pass-through shader. We're unsure if this
// actually happens so we modify the shader to use a pass-through fragment shader.
if (!defined(result)) {
result = {};
}
const shader = result.depthOnlyCommand?.shaderProgram;
const renderState = result.depthOnlyCommand?.renderState;
result.depthOnlyCommand = DrawCommand.shallowClone(
command,
result.depthOnlyCommand,
);
if (!defined(shader) || result.shaderProgramId !== command.shaderProgram.id) {
result.depthOnlyCommand.shaderProgram = getDepthOnlyShaderProgram(
context,
command.shaderProgram,
);
result.depthOnlyCommand.renderState = getDepthOnlyRenderState(
scene,
command.renderState,
);
result.shaderProgramId = command.shaderProgram.id;
} else {
result.depthOnlyCommand.shaderProgram = shader;
result.depthOnlyCommand.renderState = renderState;
}
return result;
};
const writeLogDepthRegex = /\s+czm_writeLogDepth\(/;
const vertexlogDepthRegex = /\s+czm_vertexLogDepth\(/;
function getLogDepthShaderProgram(context, shaderProgram) {
const disableLogDepthWrite =
shaderProgram.fragmentShaderSource.defines.indexOf("LOG_DEPTH_READ_ONLY") >=
0;
if (disableLogDepthWrite) {
return shaderProgram;
}
const cachedShader = context.shaderCache.getDerivedShaderProgram(
shaderProgram,
"logDepth",
);
if (defined(cachedShader)) {
return cachedShader;
}
const attributeLocations = shaderProgram._attributeLocations;
const vs = shaderProgram.vertexShaderSource.clone();
const fs = shaderProgram.fragmentShaderSource.clone();
vs.defines = defined(vs.defines) ? vs.defines.slice(0) : [];
vs.defines.push("LOG_DEPTH");
fs.defines = defined(fs.defines) ? fs.defines.slice(0) : [];
fs.defines.push("LOG_DEPTH");
let writesLogDepth = false;
let sources = vs.sources;
for (let i = 0; i < sources.length; ++i) {
if (vertexlogDepthRegex.test(sources[i])) {
writesLogDepth = true;
break;
}
}
if (!writesLogDepth) {
for (let i = 0; i < sources.length; ++i) {
sources[i] = ShaderSource.replaceMain(sources[i], "czm_log_depth_main");
}
const logMain = `
void main()
{
czm_log_depth_main();
czm_vertexLogDepth();
}
`;
sources.push(logMain);
}
sources = fs.sources;
writesLogDepth = false;
for (let i = 0; i < sources.length; ++i) {
if (writeLogDepthRegex.test(sources[i])) {
writesLogDepth = true;
}
}
// This define indicates that a log depth value is written by the shader but doesn't use czm_writeLogDepth.
if (fs.defines.indexOf("LOG_DEPTH_WRITE") !== -1) {
writesLogDepth = true;
}
let logSource = "";
if (!writesLogDepth) {
for (let i = 0; i < sources.length; i++) {
sources[i] = ShaderSource.replaceMain(sources[i], "czm_log_depth_main");
}
logSource = `
void main()
{
czm_log_depth_main();
czm_writeLogDepth();
}
`;
}
sources.push(logSource);
return context.shaderCache.createDerivedShaderProgram(
shaderProgram,
"logDepth",
{
vertexShaderSource: vs,
fragmentShaderSource: fs,
attributeLocations: attributeLocations,
},
);
}
DerivedCommand.createLogDepthCommand = function (command, context, result) {
if (!defined(result)) {
result = {};
}
const shader = result.command?.shaderProgram;
result.command = DrawCommand.shallowClone(command, result.command);
if (!defined(shader) || result.shaderProgramId !== command.shaderProgram.id) {
result.command.shaderProgram = getLogDepthShaderProgram(
context,
command.shaderProgram,
);
result.shaderProgramId = command.shaderProgram.id;
} else {
result.command.shaderProgram = shader;
}
return result;
};
function getPickShaderProgram(context, shaderProgram, pickId) {
const cachedShader = context.shaderCache.getDerivedShaderProgram(
shaderProgram,
"pick",
);
if (defined(cachedShader)) {
return cachedShader;
}
const attributeLocations = shaderProgram._attributeLocations;
const { sources, defines } = shaderProgram.fragmentShaderSource;
const hasFragData = sources.some((source) => source.includes("out_FragData"));
const outputColorVariable = hasFragData ? "out_FragData_0" : "out_FragColor";
const newMain = `void main ()
{
czm_non_pick_main();
if (${outputColorVariable}.a == 0.0) {
discard;
}
${outputColorVariable} = ${pickId};
} `;
const length = sources.length;
const newSources = new Array(length + 1);
for (let i = 0; i < length; ++i) {
newSources[i] = ShaderSource.replaceMain(sources[i], "czm_non_pick_main");
}
newSources[length] = newMain;
const fragmentShaderSource = new ShaderSource({
sources: newSources,
defines: defines,
});
return context.shaderCache.createDerivedShaderProgram(shaderProgram, "pick", {
vertexShaderSource: shaderProgram.vertexShaderSource,
fragmentShaderSource: fragmentShaderSource,
attributeLocations: attributeLocations,
});
}
function getPickRenderState(scene, renderState) {
const cache = scene.picking.pickRenderStateCache;
const cachedPickState = cache[renderState.id];
if (defined(cachedPickState)) {
return cachedPickState;
}
const rs = RenderState.getState(renderState);
rs.blending.enabled = false;
// Turns on depth writing for opaque and translucent passes
// Overlapping translucent geometry on the globe surface may exhibit z-fighting
// during the pick pass which may not match the rendered scene. Once
// terrain is on by default and ground primitives are used instead
// this will become less of a problem.
rs.depthMask = true;
const pickState = RenderState.fromCache(rs);
cache[renderState.id] = pickState;
return pickState;
}
DerivedCommand.createPickDerivedCommand = function (
scene,
command,
context,
result,
) {
if (!defined(result)) {
result = {};
}
const shader = result.pickCommand?.shaderProgram;
const renderState = result.pickCommand?.renderState;
result.pickCommand = DrawCommand.shallowClone(command, result.pickCommand);
if (!defined(shader) || result.shaderProgramId !== command.shaderProgram.id) {
result.pickCommand.shaderProgram = getPickShaderProgram(
context,
command.shaderProgram,
command.pickId,
);
result.pickCommand.renderState = getPickRenderState(
scene,
command.renderState,
);
result.shaderProgramId = command.shaderProgram.id;
} else {
result.pickCommand.shaderProgram = shader;
result.pickCommand.renderState = renderState;
}
return result;
};
/**
* Replaces the value of the specified 'define' directive identifier
* with the given value.
*
* The given defines are the parts of the define directives that are
* stored in the `ShaderSource`. For example, the defines may be
* `["EXAMPLE", "EXAMPLE_VALUE 123"]`
*
* Calling `replaceDefine(defines, "EXAMPLE", 999)` will result in
* the defines being
* `["EXAMPLE 999", "EXAMPLE_VALUE 123"]`
*
* @param {string[]} defines The define directive identifiers
* @param {string} defineName The name (identifier) of the define directive
* @param {any} newDefineValue The new value whose string representation
* will become the token string for the define directive
* @private
*/
function replaceDefine(defines, defineName, newDefineValue) {
const n = defines.length;
for (let i = 0; i < n; i++) {
const define = defines[i];
const tokens = define.trimStart().split(/\s+/);
if (tokens[0] === defineName) {
defines[i] = `${defineName} ${newDefineValue}`;
}
}
}
/**
* Returns the component count for the given class property, or
* its array length if it is an array.
*
* This will be
* `[1, 2, 3, 4]` for `[SCALAR, VEC2, VEC3, VEC4`] types,
* or the array length if it is an array.
*
* @param {MetadataClassProperty} classProperty The class property
* @returns {number} The component count
* @private
*/
function getComponentCount(classProperty) {
if (!classProperty.isArray) {
return MetadataType.getComponentCount(classProperty.type);
}
return classProperty.arrayLength;
}
/**
* Returns the type that the given class property has in a GLSL shader.
*
* It returns the same string as `PropertyTextureProperty.prototype.getGlslType`
* for a property texture property with the given class property
*
* @param {MetadataClassProperty} classProperty The class property
* @returns {string} The GLSL shader type string for the property
*/
function getGlslType(classProperty) {
const componentCount = getComponentCount(classProperty);
if (classProperty.normalized) {
if (componentCount === 1) {
return "float";
}
return `vec${componentCount}`;
}
if (componentCount === 1) {
return "int";
}
return `ivec${componentCount}`;
}
/**
* Returns a shader statement that applies the inverse of the
* value transform to the given value, based on the given offset
* and scale.
*
* @param {string} input The input value
* @param {string} offset The offset
* @param {string} scale The scale
* @returns {string} The statement
*/
function unapplyValueTransform(input, offset, scale) {
return `((${input} - float(${offset})) / float(${scale}))`;
}
/**
* Returns a shader statement that applies the inverse of the
* normalization, based on the given component type
*
* @param {string} input The input value
* @param {string} componentType The component type
* @returns {string} The statement
*/
function unnormalize(input, componentType) {
const max = MetadataComponentType.getMaximum(componentType);
return `(${input}) / float(${max})`;
}
/**
* Creates a shader statement that returns the value of the specified
* property, normalized to the range [0, 1].
*
* @param {MetadataClassProperty} classProperty The class property
* @param {object} metadataProperty The metadata property, either
* a `PropertyTextureProperty` or a `PropertyAttributeProperty`
* @returns {string} The string
*/
function getSourceValueStringScalar(classProperty, metadataProperty) {
let result = `float(value)`;
// The 'hasValueTransform' indicates whether the property
// (or its class property) did define an 'offset' or 'scale'.
// Even when they had not been defined in the JSON, they are
// defined in the object, with default values.
if (metadataProperty.hasValueTransform) {
const offset = metadataProperty.offset;
const scale = metadataProperty.scale;
result = unapplyValueTransform(result, offset, scale);
}
if (!classProperty.normalized) {
result = unnormalize(result, classProperty.componentType);
}
return result;
}
/**
* Creates a shader statement that returns the value of the specified
* component of the given property, normalized to the range [0, 1].
*
* @param {MetadataClassProperty} classProperty The class property
* @param {object} metadataProperty The metadata property, either
* a `PropertyTextureProperty` or a `PropertyAttributeProperty`
* @param {string} componentName The name, in ["x", "y", "z", "w"]
* @returns {string} The string
*/
function getSourceValueStringComponent(
classProperty,
metadataProperty,
componentName,
) {
const valueString = `value.${componentName}`;
let result = `float(${valueString})`;
// The 'hasValueTransform' indicates whether the property
// (or its class property) did define an 'offset' or 'scale'.
// Even when they had not been defined in the JSON, they are
// defined in the object, with default values
// Note that in the 'PropertyTextureProperty' and the
// 'PropertyAttributeProperty', these values are
// stored as "object types" (like 'Cartesian2'), whereas
// in the 'MetadataClassProperty', they are stored as
// "array types", e.g. a `[number, number]`
if (metadataProperty.hasValueTransform) {
const offset = metadataProperty.offset[componentName];
const scale = metadataProperty.scale[componentName];
result = unapplyValueTransform(result, offset, scale);
}
if (!classProperty.normalized) {
result = unnormalize(result, classProperty.componentType);
}
return result;
}
/**
* Creates a new `ShaderProgram` from the given input that renders metadata
* values into the frame buffer, according to the given picked metadata info.
*
* This will update the `defines` of the fragment shader of the given shader
* program, by setting `METADATA_PICKING_ENABLED`, and updating the
* `METADATA_PICKING_VALUE_*` defines so that they reflect the components
* of the metadata that should be written into the RGBA (vec4) that
* ends up as the 'color' in the frame buffer.
*
* The RGBA values will eventually be converted back into an actual metadata
* value in `Picking.js`, by calling `MetadataPicking.decodeMetadataValues`.
*
* @param {Context} context The context
* @param {ShaderProgram} shaderProgram The shader program
* @param {PickedMetadataInfo} pickedMetadataInfo The picked metadata info
* @returns {ShaderProgram} The new shader program
* @private
*/
function getPickMetadataShaderProgram(
context,
shaderProgram,
pickedMetadataInfo,
) {
const schemaId = pickedMetadataInfo.schemaId;
const className = pickedMetadataInfo.className;
const propertyName = pickedMetadataInfo.propertyName;
const keyword = `pickMetadata-${schemaId}-${className}-${propertyName}`;
const shader = context.shaderCache.getDerivedShaderProgram(
shaderProgram,
keyword,
);
if (defined(shader)) {
return shader;
}
const metadataProperty = pickedMetadataInfo.metadataProperty;
const classProperty = pickedMetadataInfo.classProperty;
const glslType = getGlslType(classProperty);
// Define the components that will go into the output `metadataValues`.
// This will be the 'color' that is written into the frame buffer,
// meaning that the values should be in [0.0, 1.0], and will become
// values in [0, 255] in the frame buffer.
// By default, all of them are 0.0.
const sourceValueStrings = ["0.0", "0.0", "0.0", "0.0"];
const componentCount = getComponentCount(classProperty);
if (componentCount === 1) {
// When the property is a scalar, store the source value
// string directly in `metadataValues.x`
sourceValueStrings[0] = getSourceValueStringScalar(
classProperty,
metadataProperty,
);
} else {
// When the property is an array, store the array elements
// in `metadataValues.x/y/z/w`
const componentNames = ["x", "y", "z", "w"];
for (let i = 0; i < componentCount; i++) {
sourceValueStrings[i] = getSourceValueStringComponent(
classProperty,
metadataProperty,
componentNames[i],
);
}
}
const newDefines = shaderProgram.fragmentShaderSource.defines.slice();
newDefines.push(MetadataPickingPipelineStage.METADATA_PICKING_ENABLED);
// Replace the defines of the shader, using the type, property
// access, and value components that have been determined
replaceDefine(
newDefines,
MetadataPickingPipelineStage.METADATA_PICKING_VALUE_TYPE,
glslType,
);
replaceDefine(
newDefines,
MetadataPickingPipelineStage.METADATA_PICKING_VALUE_STRING,
`metadata.${propertyName}`,
);
replaceDefine(
newDefines,
MetadataPickingPipelineStage.METADATA_PICKING_VALUE_COMPONENT_X,
sourceValueStrings[0],
);
replaceDefine(
newDefines,
MetadataPickingPipelineStage.METADATA_PICKING_VALUE_COMPONENT_Y,
sourceValueStrings[1],
);
replaceDefine(
newDefines,
MetadataPickingPipelineStage.METADATA_PICKING_VALUE_COMPONENT_Z,
sourceValueStrings[2],
);
replaceDefine(
newDefines,
MetadataPickingPipelineStage.METADATA_PICKING_VALUE_COMPONENT_W,
sourceValueStrings[3],
);
const newFragmentShaderSource = new ShaderSource({
sources: shaderProgram.fragmentShaderSource.sources,
defines: newDefines,
});
const newShader = context.shaderCache.createDerivedShaderProgram(
shaderProgram,
keyword,
{
vertexShaderSource: shaderProgram.vertexShaderSource,
fragmentShaderSource: newFragmentShaderSource,
attributeLocations: shaderProgram._attributeLocations,
},
);
return newShader;
}
/**
* @private
*/
DerivedCommand.createPickMetadataDerivedCommand = function (
scene,
command,
context,
result,
) {
if (!defined(result)) {
result = {};
}
result.pickMetadataCommand = DrawCommand.shallowClone(
command,
result.pickMetadataCommand,
);
result.pickMetadataCommand.shaderProgram = getPickMetadataShaderProgram(
context,
command.shaderProgram,
command.pickedMetadataInfo,
);
result.pickMetadataCommand.renderState = getPickRenderState(
scene,
command.renderState,
);
result.shaderProgramId = command.shaderProgram.id;
return result;
};
function getHdrShaderProgram(context, shaderProgram) {
const cachedShader = context.shaderCache.getDerivedShaderProgram(
shaderProgram,
"HDR",
);
if (defined(cachedShader)) {
return cachedShader;
}
const attributeLocations = shaderProgram._attributeLocations;
const vs = shaderProgram.vertexShaderSource.clone();
const fs = shaderProgram.fragmentShaderSource.clone();
vs.defines = defined(vs.defines) ? vs.defines.slice(0) : [];
vs.defines.push("HDR");
fs.defines = defined(fs.defines) ? fs.defines.slice(0) : [];
fs.defines.push("HDR");
return context.shaderCache.createDerivedShaderProgram(shaderProgram, "HDR", {
vertexShaderSource: vs,
fragmentShaderSource: fs,
attributeLocations: attributeLocations,
});
}
DerivedCommand.createHdrCommand = function (command, context, result) {
if (!defined(result)) {
result = {};
}
const shader = result.command?.shaderProgram;
result.command = DrawCommand.shallowClone(command, result.command);
if (!defined(shader) || result.shaderProgramId !== command.shaderProgram.id) {
result.command.shaderProgram = getHdrShaderProgram(
context,
command.shaderProgram,
);
result.shaderProgramId = command.shaderProgram.id;
} else {
result.command.shaderProgram = shader;
}
return result;
};
export default DerivedCommand;
|