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perf: 数组解构比分别赋值更快

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unanmed 2025-01-11 17:23:55 +08:00
parent babb478542
commit ba30d111a5
1 changed files with 10 additions and 13 deletions
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23
src/core/render/gl2.ts
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@ -248,6 +248,7 @@ export abstract class GL2<E extends EGL2Event = EGL2Event> extends RenderItem<
case RenderMode.Arrays: {
const { mode, first, count } = param as DrawArraysParam;
gl.drawArrays(mode, first, count);
break;
}
case RenderMode.Elements: {
if (!indices) return;
@ -255,11 +256,13 @@ export abstract class GL2<E extends EGL2Event = EGL2Event> extends RenderItem<
param as DrawElementsParam;
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indices.data);
gl.drawElements(mode, count, type, offset);
break;
}
case RenderMode.ArraysInstanced: {
const { mode, first, count, instanceCount } =
param as DrawArraysInstancedParam;
gl.drawArraysInstanced(mode, first, count, instanceCount);
break;
}
case RenderMode.ElementsInstanced: {
if (!indices) return;
@ -272,6 +275,7 @@ export abstract class GL2<E extends EGL2Event = EGL2Event> extends RenderItem<
} = param as DrawElementsInstancedParam;
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indices.data);
gl.drawElementsInstanced(mode, count, type, offset, ins);
break;
}
}
}
@ -714,12 +718,8 @@ class ShaderUniform<T extends UniformType> implements IShaderUniform<T> {
) {}
set(...params: UniformSetFn[T]): void {
this.gl.vertexAttribIPointer;
// 因为ts类型推导的限制，类型肯定正确，但是推导不出，所以这里直接 as any 屏蔽掉类型推导
const x0 = params[0] as any;
const x1 = params[1] as any;
const x2 = params[2] as any;
const x3 = params[3] as any;
const [x0, x1, x2, x3] = params as any[];
switch (this.type) {
case UniformType.Uniform1f:
this.gl.uniform1f(this.location, x0);
@ -807,10 +807,7 @@ class ShaderAttrib<T extends AttribType> implements IShaderAttrib<T> {
set(...params: AttribSetFn[T]) {
// 因为ts类型推导的限制，类型肯定正确，但是推导不出，所以这里直接 as any 屏蔽掉类型推导
const x0 = params[0] as any;
const x1 = params[1] as any;
const x2 = params[2] as any;
const x3 = params[3] as any;
const [x0, x1, x2, x3] = params as any[];
switch (this.type) {
case AttribType.Attrib1f:
this.gl.vertexAttrib1f(this.location, x0);
@ -1035,10 +1032,10 @@ class ShaderUniformBlock implements IShaderUniformBlock {
const buffer = this.buffer;
gl.bindBuffer(gl.UNIFORM_BUFFER, buffer);
if (srcOffset !== void 0) {
// @ts-ignore
// @ts-expect-error 无法推断
gl.bufferSubData(gl.UNIFORM_BUFFER, 0, srcData, srcOffset, length);
} else {
// @ts-ignore
// @ts-expect-error 无法推断
gl.bufferSubData(gl.UNIFORM_BUFFER, 0, srcData);
}
gl.bindBufferBase(gl.UNIFORM_BUFFER, this.binding, buffer);
@ -1478,7 +1475,7 @@ export class GL2Program extends EventEmitter<ShaderProgramEvent> {
/**
* 定义一个 uniform 变量，并存入本着色器程序的 uniform 变量映射
* @param uniform uniform 变量名
* @param type uniform 类型，可选 {@link Shader.UNIFORM_1f} 至 {@link Shader.UNIFORM_4uiv}
* @param type uniform 类型，可选 {@link GL2.UNIFORM_1f} 至 {@link GL2.UNIFORM_4uiv}
* @returns uniform 变量的操作对象，可用于设置其值
*/
defineUniform<T extends UniformType>(
@ -1506,7 +1503,7 @@ export class GL2Program extends EventEmitter<ShaderProgramEvent> {
/**
* 定义一个 uniform 矩阵变量，并存入本着色器程序的 uniform 矩阵变量映射
* @param uniform uniform 矩阵变量名
* @param type uniform 矩阵类型，可选 {@link Shader.U_MATRIX_2x2} 至 {@link Shader.U_MATRIX_4x4}
* @param type uniform 矩阵类型，可选 {@link GL2.U_MATRIX_2x2} 至 {@link GL2.U_MATRIX_4x4}
* @returns uniform 矩阵变量的操作对象，可用于设置其值
*/
defineUniformMatrix(