playcanvas
Version:
PlayCanvas WebGL game engine
324 lines (321 loc) • 11.2 kB
JavaScript
import { EventHandler } from '../../core/event-handler.js';
import { platform } from '../../core/platform.js';
import { now } from '../../core/time.js';
import { Vec2 } from '../../core/math/vec2.js';
import { Color } from '../../core/math/color.js';
import { TYPE_FLOAT32, SEMANTIC_POSITION, CULLFACE_BACK, PIXELFORMAT_RGBA32F, PIXELFORMAT_RGBA16F, PIXELFORMAT_111110F, CLEARFLAG_COLOR, CLEARFLAG_DEPTH, DISPLAYFORMAT_LDR, PRIMITIVE_TRIFAN, PRIMITIVE_POINTS } from './constants.js';
import { BlendState } from './blend-state.js';
import { DepthState } from './depth-state.js';
import { ScopeSpace } from './scope-space.js';
import { VertexBuffer } from './vertex-buffer.js';
import { VertexFormat } from './vertex-format.js';
import { StencilParameters } from './stencil-parameters.js';
function _extends() {
_extends = Object.assign || function(target) {
for(var i = 1; i < arguments.length; i++){
var source = arguments[i];
for(var key in source){
if (Object.prototype.hasOwnProperty.call(source, key)) {
target[key] = source[key];
}
}
}
return target;
};
return _extends.apply(this, arguments);
}
class GraphicsDevice extends EventHandler {
postInit() {
var vertexFormat = new VertexFormat(this, [
{
semantic: SEMANTIC_POSITION,
components: 2,
type: TYPE_FLOAT32
}
]);
var positions = new Float32Array([
-1,
-1,
1,
-1,
-1,
1,
1,
1
]);
this.quadVertexBuffer = new VertexBuffer(this, vertexFormat, 4, {
data: positions
});
}
initCapsDefines() {
var { capsDefines } = this;
capsDefines.clear();
if (this.textureFloatFilterable) capsDefines.set('CAPS_TEXTURE_FLOAT_FILTERABLE', '');
if (this.textureFloatRenderable) capsDefines.set('CAPS_TEXTURE_FLOAT_RENDERABLE', '');
}
destroy() {
var _this_quadVertexBuffer, _this_dynamicBuffers, _this_gpuProfiler;
this.fire('destroy');
(_this_quadVertexBuffer = this.quadVertexBuffer) == null ? void 0 : _this_quadVertexBuffer.destroy();
this.quadVertexBuffer = null;
(_this_dynamicBuffers = this.dynamicBuffers) == null ? void 0 : _this_dynamicBuffers.destroy();
this.dynamicBuffers = null;
(_this_gpuProfiler = this.gpuProfiler) == null ? void 0 : _this_gpuProfiler.destroy();
this.gpuProfiler = null;
}
onDestroyShader(shader) {
this.fire('destroy:shader', shader);
var idx = this.shaders.indexOf(shader);
if (idx !== -1) {
this.shaders.splice(idx, 1);
}
}
postDestroy() {
this.scope = null;
this.canvas = null;
}
loseContext() {
var _this_gpuProfiler;
this.contextLost = true;
this.backBufferSize.set(-1, -1);
for (var texture of this.textures){
texture.loseContext();
}
for (var buffer of this.buffers){
buffer.loseContext();
}
for (var target of this.targets){
target.loseContext();
}
(_this_gpuProfiler = this.gpuProfiler) == null ? void 0 : _this_gpuProfiler.loseContext();
}
restoreContext() {
var _this_gpuProfiler_restoreContext, _this_gpuProfiler;
this.contextLost = false;
this.initializeRenderState();
this.initializeContextCaches();
for (var buffer of this.buffers){
buffer.unlock();
}
(_this_gpuProfiler = this.gpuProfiler) == null ? void 0 : (_this_gpuProfiler_restoreContext = _this_gpuProfiler.restoreContext) == null ? void 0 : _this_gpuProfiler_restoreContext.call(_this_gpuProfiler);
}
toJSON(key) {
return undefined;
}
initializeContextCaches() {
this.indexBuffer = null;
this.vertexBuffers = [];
this.shader = null;
this.shaderValid = undefined;
this.shaderAsyncCompile = false;
this.renderTarget = null;
}
initializeRenderState() {
this.blendState = new BlendState();
this.depthState = new DepthState();
this.cullMode = CULLFACE_BACK;
this.vx = this.vy = this.vw = this.vh = 0;
this.sx = this.sy = this.sw = this.sh = 0;
this.blendColor = new Color(0, 0, 0, 0);
}
setStencilState(stencilFront, stencilBack) {}
setBlendState(blendState) {}
setBlendColor(r, g, b, a) {}
setDepthState(depthState) {}
setCullMode(cullMode) {}
setRenderTarget(renderTarget) {
this.renderTarget = renderTarget;
}
setIndexBuffer(indexBuffer) {
this.indexBuffer = indexBuffer;
}
setVertexBuffer(vertexBuffer) {
if (vertexBuffer) {
this.vertexBuffers.push(vertexBuffer);
}
}
clearVertexBuffer() {
this.vertexBuffers.length = 0;
}
clearIndexBuffer() {
this.indexBuffer = null;
}
getRenderTarget() {
return this.renderTarget;
}
initRenderTarget(target) {
if (target.initialized) return;
var startTime = now();
this.fire('fbo:create', {
timestamp: startTime,
target: this
});
target.init();
this.targets.add(target);
this._renderTargetCreationTime += now() - startTime;
}
_isBrowserInterface(texture) {
return this._isImageBrowserInterface(texture) || this._isImageCanvasInterface(texture) || this._isImageVideoInterface(texture);
}
_isImageBrowserInterface(texture) {
return typeof ImageBitmap !== 'undefined' && texture instanceof ImageBitmap || typeof HTMLImageElement !== 'undefined' && texture instanceof HTMLImageElement;
}
_isImageCanvasInterface(texture) {
return typeof HTMLCanvasElement !== 'undefined' && texture instanceof HTMLCanvasElement;
}
_isImageVideoInterface(texture) {
return typeof HTMLVideoElement !== 'undefined' && texture instanceof HTMLVideoElement;
}
resizeCanvas(width, height) {
var pixelRatio = Math.min(this._maxPixelRatio, platform.browser ? window.devicePixelRatio : 1);
var w = Math.floor(width * pixelRatio);
var h = Math.floor(height * pixelRatio);
if (w !== this.canvas.width || h !== this.canvas.height) {
this.setResolution(w, h);
}
}
setResolution(width, height) {
this.canvas.width = width;
this.canvas.height = height;
this.fire(GraphicsDevice.EVENT_RESIZE, width, height);
}
updateClientRect() {
if (platform.worker) {
this.clientRect.width = this.canvas.width;
this.clientRect.height = this.canvas.height;
} else {
var rect = this.canvas.getBoundingClientRect();
this.clientRect.width = rect.width;
this.clientRect.height = rect.height;
}
}
get width() {
return this.canvas.width;
}
get height() {
return this.canvas.height;
}
set fullscreen(fullscreen) {}
get fullscreen() {
return false;
}
set maxPixelRatio(ratio) {
this._maxPixelRatio = ratio;
}
get maxPixelRatio() {
return this._maxPixelRatio;
}
get deviceType() {
return this._deviceType;
}
startRenderPass(renderPass) {}
endRenderPass(renderPass) {}
startComputePass(name) {}
endComputePass() {}
frameStart() {
this.renderPassIndex = 0;
this.renderVersion++;
}
frameEnd() {}
computeDispatch(computes, name) {
}
getRenderableHdrFormat(formats, filterable, samples) {
if (formats === void 0) formats = [
PIXELFORMAT_111110F,
PIXELFORMAT_RGBA16F,
PIXELFORMAT_RGBA32F
];
if (filterable === void 0) filterable = true;
if (samples === void 0) samples = 1;
for(var i = 0; i < formats.length; i++){
var format = formats[i];
switch(format){
case PIXELFORMAT_111110F:
{
if (this.textureRG11B10Renderable) {
return format;
}
break;
}
case PIXELFORMAT_RGBA16F:
if (this.textureHalfFloatRenderable) {
return format;
}
break;
case PIXELFORMAT_RGBA32F:
if (this.isWebGPU && samples > 1) {
continue;
}
if (this.textureFloatRenderable && (!filterable || this.textureFloatFilterable)) {
return format;
}
break;
}
}
return undefined;
}
validateAttributes(shader, vb0Format, vb1Format) {}
constructor(canvas, options){
var _this_initOptions, _this_initOptions1, _this_initOptions2, _this_initOptions3, _this_initOptions4, _this_initOptions5;
super(), this.backBuffer = null, this.backBufferSize = new Vec2(), this.backBufferAntialias = false, this.isWebGPU = false, this.isWebGL2 = false, this.isHdr = false, this.maxColorAttachments = 1, this.maxSamples = 1, this.supportsCompute = false, this.supportsStorageTextureRead = false, this.renderTarget = null, this.shaders = [], this.textures = [], this.targets = new Set(), this.renderVersion = 0, this.insideRenderPass = false, this.supportsUniformBuffers = false, this.supportsClipDistances = false, this.textureRG11B10Renderable = false, this.textureFloatFilterable = false, this.blendState = new BlendState(), this.depthState = new DepthState(), this.stencilEnabled = false, this.stencilFront = new StencilParameters(), this.stencilBack = new StencilParameters(), this.defaultClearOptions = {
color: [
0,
0,
0,
1
],
depth: 1,
stencil: 0,
flags: CLEARFLAG_COLOR | CLEARFLAG_DEPTH
}, this.clientRect = {
width: 0,
height: 0
}, this._shadersDirty = false, this.capsDefines = new Map();
this.canvas = canvas;
this.initOptions = _extends({}, options);
var _alpha;
(_alpha = (_this_initOptions = this.initOptions).alpha) != null ? _alpha : _this_initOptions.alpha = true;
var _depth;
(_depth = (_this_initOptions1 = this.initOptions).depth) != null ? _depth : _this_initOptions1.depth = true;
var _stencil;
(_stencil = (_this_initOptions2 = this.initOptions).stencil) != null ? _stencil : _this_initOptions2.stencil = true;
var _antialias;
(_antialias = (_this_initOptions3 = this.initOptions).antialias) != null ? _antialias : _this_initOptions3.antialias = true;
var _powerPreference;
(_powerPreference = (_this_initOptions4 = this.initOptions).powerPreference) != null ? _powerPreference : _this_initOptions4.powerPreference = 'high-performance';
var _displayFormat;
(_displayFormat = (_this_initOptions5 = this.initOptions).displayFormat) != null ? _displayFormat : _this_initOptions5.displayFormat = DISPLAYFORMAT_LDR;
this._maxPixelRatio = platform.browser ? Math.min(1, window.devicePixelRatio) : 1;
this.buffers = [];
this._vram = {
texShadow: 0,
texAsset: 0,
texLightmap: 0,
tex: 0,
vb: 0,
ib: 0,
ub: 0,
sb: 0
};
this._shaderStats = {
vsCompiled: 0,
fsCompiled: 0,
linked: 0,
materialShaders: 0,
compileTime: 0
};
this.initializeContextCaches();
this._drawCallsPerFrame = 0;
this._shaderSwitchesPerFrame = 0;
this._primsPerFrame = [];
for(var i = PRIMITIVE_POINTS; i <= PRIMITIVE_TRIFAN; i++){
this._primsPerFrame[i] = 0;
}
this._renderTargetCreationTime = 0;
this.scope = new ScopeSpace('Device');
this.textureBias = this.scope.resolve('textureBias');
this.textureBias.setValue(0.0);
}
}
GraphicsDevice.EVENT_RESIZE = 'resizecanvas';
export { GraphicsDevice };