laya-coreui-es
Version:
laya核心库、ui库es版本，剔除了媒体、TTF等功能。基于 LayaAir-release_2.12.0 修改
201 lines (200 loc) • 8.48 kB
JavaScript
import { Texture2D } from "./Texture2D";
import { LayaGL } from "../layagl/LayaGL";
import { BaseTexture } from "./BaseTexture";
import { WebGLContext } from "../webgl/WebGLContext";
import { BaseShader } from "../webgl/shader/BaseShader";
import { RenderState2D } from "../webgl/utils/RenderState2D";
import { ILaya } from "../../ILaya";
import { RenderTextureFormat, RenderTextureDepthFormat } from "./RenderTextureFormat";
export class RenderTexture2D extends BaseTexture {
static get currentActive() {
return RenderTexture2D._currentActive;
}
get depthStencilFormat() {
return this._depthStencilFormat;
}
get defaulteTexture() {
return Texture2D.grayTexture;
}
getIsReady() {
return true;
}
get sourceWidth() {
return this._width;
}
get sourceHeight() {
return this._height;
}
get offsetX() {
return 0;
}
get offsetY() {
return 0;
}
constructor(width, height, format = RenderTextureFormat.R8G8B8, depthStencilFormat = RenderTextureDepthFormat.DEPTH_16) {
super(format, false);
this._mgrKey = 0;
this._glTextureType = LayaGL.instance.TEXTURE_2D;
this._width = width;
this._height = height;
this._depthStencilFormat = depthStencilFormat;
this._create(width, height);
this.lock = true;
}
_create(width, height) {
var gl = LayaGL.instance;
this._frameBuffer = gl.createFramebuffer();
WebGLContext.bindTexture(gl, this._glTextureType, this._glTexture);
var glFormat = this._getGLFormat();
gl.texImage2D(this._glTextureType, 0, glFormat, width, height, 0, glFormat, gl.UNSIGNED_BYTE, null);
this._setGPUMemory(width * height * 4);
gl.bindFramebuffer(gl.FRAMEBUFFER, this._frameBuffer);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, this._glTexture, 0);
if (this._depthStencilFormat !== RenderTextureDepthFormat.DEPTHSTENCIL_NONE) {
this._depthStencilBuffer = gl.createRenderbuffer();
gl.bindRenderbuffer(gl.RENDERBUFFER, this._depthStencilBuffer);
switch (this._depthStencilFormat) {
case RenderTextureDepthFormat.DEPTH_16:
gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_COMPONENT16, width, height);
gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.RENDERBUFFER, this._depthStencilBuffer);
break;
case RenderTextureDepthFormat.STENCIL_8:
gl.renderbufferStorage(gl.RENDERBUFFER, gl.STENCIL_INDEX8, width, height);
gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.STENCIL_ATTACHMENT, gl.RENDERBUFFER, this._depthStencilBuffer);
break;
case RenderTextureDepthFormat.DEPTHSTENCIL_24_8:
gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_STENCIL, width, height);
gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_STENCIL_ATTACHMENT, gl.RENDERBUFFER, this._depthStencilBuffer);
break;
default:
}
}
gl.bindFramebuffer(gl.FRAMEBUFFER, null);
gl.bindRenderbuffer(gl.RENDERBUFFER, null);
this._setWarpMode(gl.TEXTURE_WRAP_S, this._wrapModeU);
this._setWarpMode(gl.TEXTURE_WRAP_T, this._wrapModeV);
this._setFilterMode(this._filterMode);
this._setAnisotropy(this._anisoLevel);
this._readyed = true;
this._activeResource();
}
generateMipmap() {
if (this._isPot(this.width) && this._isPot(this.height)) {
this._mipmap = true;
LayaGL.instance.generateMipmap(this._glTextureType);
this._setFilterMode(this._filterMode);
this._setGPUMemory(this.width * this.height * 4 * (1 + 1 / 3));
}
else {
this._mipmap = false;
this._setGPUMemory(this.width * this.height * 4);
}
}
static pushRT() {
RenderTexture2D.rtStack.push({ rt: RenderTexture2D._currentActive, w: RenderState2D.width, h: RenderState2D.height });
}
static popRT() {
var gl = LayaGL.instance;
var top = RenderTexture2D.rtStack.pop();
if (top) {
if (RenderTexture2D._currentActive != top.rt) {
LayaGL.instance.bindFramebuffer(gl.FRAMEBUFFER, top.rt ? top.rt._frameBuffer : null);
RenderTexture2D._currentActive = top.rt;
}
gl.viewport(0, 0, top.w, top.h);
RenderState2D.width = top.w;
RenderState2D.height = top.h;
}
}
start() {
var gl = LayaGL.instance;
LayaGL.instance.bindFramebuffer(gl.FRAMEBUFFER, this._frameBuffer);
this._lastRT = RenderTexture2D._currentActive;
RenderTexture2D._currentActive = this;
this._readyed = true;
gl.viewport(0, 0, this._width, this._height);
this._lastWidth = RenderState2D.width;
this._lastHeight = RenderState2D.height;
RenderState2D.width = this._width;
RenderState2D.height = this._height;
BaseShader.activeShader = null;
}
end() {
var gl = LayaGL.instance;
gl.bindFramebuffer(gl.FRAMEBUFFER, null);
RenderTexture2D._currentActive = null;
this._readyed = true;
}
restore() {
var gl = LayaGL.instance;
if (this._lastRT != RenderTexture2D._currentActive) {
LayaGL.instance.bindFramebuffer(gl.FRAMEBUFFER, this._lastRT ? this._lastRT._frameBuffer : null);
RenderTexture2D._currentActive = this._lastRT;
}
this._readyed = true;
gl.viewport(0, 0, this._lastWidth, this._lastHeight);
RenderState2D.width = this._lastWidth;
RenderState2D.height = this._lastHeight;
BaseShader.activeShader = null;
}
clear(r = 0.0, g = 0.0, b = 0.0, a = 1.0) {
var gl = LayaGL.instance;
gl.clearColor(r, g, b, a);
var clearFlag = gl.COLOR_BUFFER_BIT;
switch (this._depthStencilFormat) {
case gl.DEPTH_COMPONENT16:
clearFlag |= gl.DEPTH_BUFFER_BIT;
break;
case gl.STENCIL_INDEX8:
clearFlag |= gl.STENCIL_BUFFER_BIT;
break;
case gl.DEPTH_STENCIL:
clearFlag |= gl.DEPTH_BUFFER_BIT;
clearFlag |= gl.STENCIL_BUFFER_BIT;
break;
}
gl.clear(clearFlag);
}
getData(x, y, width, height) {
if (ILaya.Render.isConchApp && window.conchConfig.threadMode == 2) {
throw "native 2 thread mode use getDataAsync";
}
var gl = LayaGL.instance;
gl.bindFramebuffer(gl.FRAMEBUFFER, this._frameBuffer);
var canRead = (gl.checkFramebufferStatus(gl.FRAMEBUFFER) === gl.FRAMEBUFFER_COMPLETE);
if (!canRead) {
gl.bindFramebuffer(gl.FRAMEBUFFER, null);
return null;
}
var pixels = new Uint8Array(this._width * this._height * 4);
var glFormat = this._getGLFormat();
gl.readPixels(x, y, width, height, glFormat, gl.UNSIGNED_BYTE, pixels);
gl.bindFramebuffer(gl.FRAMEBUFFER, null);
return pixels;
}
getDataAsync(x, y, width, height, callBack) {
var gl = LayaGL.instance;
gl.bindFramebuffer(gl.FRAMEBUFFER, this._frameBuffer);
gl.readPixelsAsync(x, y, width, height, gl.RGBA, gl.UNSIGNED_BYTE, function (data) {
callBack(new Uint8Array(data));
});
gl.bindFramebuffer(gl.FRAMEBUFFER, null);
}
recycle() {
}
_disposeResource() {
if (this._frameBuffer) {
var gl = LayaGL.instance;
gl.deleteTexture(this._glTexture);
gl.deleteFramebuffer(this._frameBuffer);
gl.deleteRenderbuffer(this._depthStencilBuffer);
this._glTexture = null;
this._frameBuffer = null;
this._depthStencilBuffer = null;
this._setGPUMemory(0);
}
}
}
RenderTexture2D.rtStack = [];
RenderTexture2D.defuv = [0, 0, 1, 0, 1, 1, 0, 1];
RenderTexture2D.flipyuv = [0, 1, 1, 1, 1, 0, 0, 0];