From 0c6d978442b244ca3f29c1ffdd44b5007ae7ad93 Mon Sep 17 00:00:00 2001
From: Ilion Beyst <ilion.beyst@gmail.com>
Date: Wed, 29 Dec 2021 21:24:57 +0100
Subject: separate out visualizer library

---
 .../src/lib/visualizer/webgl/vertexBufferLayout.ts | 115 ---------------------
 1 file changed, 115 deletions(-)
 delete mode 100644 web/pw-frontend/src/lib/visualizer/webgl/vertexBufferLayout.ts

(limited to 'web/pw-frontend/src/lib/visualizer/webgl/vertexBufferLayout.ts')

diff --git a/web/pw-frontend/src/lib/visualizer/webgl/vertexBufferLayout.ts b/web/pw-frontend/src/lib/visualizer/webgl/vertexBufferLayout.ts
deleted file mode 100644
index f44ed47..0000000
--- a/web/pw-frontend/src/lib/visualizer/webgl/vertexBufferLayout.ts
+++ /dev/null
@@ -1,115 +0,0 @@
-import type { VertexBuffer } from './buffer';
-import type { Shader } from './shader';
-
-export class VertexBufferElement {
-    type: number;
-    amount: number;
-    type_size: number;
-    normalized: boolean;
-    index: string;
-
-    constructor(
-        type: number,
-        amount: number,
-        type_size: number,
-        index: string,
-        normalized: boolean,
-    ) {
-        this.type = type;
-        this.amount = amount;
-        this.type_size = type_size;
-        this.normalized = normalized;
-        this.index = index;
-    }
-}
-
-export class VertexBufferLayout {
-    elements: VertexBufferElement[];
-    stride: number;
-    offset: number;
-
-    constructor(offset = 0) {
-        this.elements = [];
-        this.stride = 0;
-        this.offset = offset;
-    }
-
-    // Maybe wrong normalized type
-    push(
-        type: number,
-        amount: number,
-        type_size: number,
-        index: string,
-        normalized = false,
-    ) {
-        this.elements.push(new VertexBufferElement(type, amount, type_size, index, normalized));
-        this.stride += amount * type_size;
-    }
-
-    getElements(): VertexBufferElement[] {
-        return this.elements;
-    }
-
-    getStride(): number {
-        return this.stride;
-    }
-}
-
-// glEnableVertexAttribArray is to specify what location of the current program the follow data is needed
-// glVertexAttribPointer tells gl that that data is at which location in the supplied data
-export class VertexArray {
-    // There is no renderer ID, always at bind buffers and use glVertexAttribPointer
-    buffers: VertexBuffer[];
-    layouts: VertexBufferLayout[];
-
-    constructor() {
-        this.buffers = [];
-        this.layouts = [];
-    }
-
-    addBuffer(vb: VertexBuffer, layout: VertexBufferLayout) {
-        this.buffers.push(vb);
-        this.layouts.push(layout);
-    }
-
-    updateBuffer(gl: WebGLRenderingContext, index: number, data: number[]) {
-        this.buffers[index].updateData(gl, data);
-    }
-
-    /// Bind buffers providing program data
-    bind(gl: WebGLRenderingContext, shader: Shader) {
-        shader.bind(gl);
-        for(let i = 0; i < this.buffers.length; i ++) {
-            const buffer = this.buffers[i];
-            const layout = this.layouts[i];
-
-            buffer.bind(gl);
-            const elements = layout.getElements();
-            let offset = layout.offset;
-
-            for (let j = 0; j < elements.length; j ++) {
-                const element = elements[j];
-                const location = shader.getAttribLocation(gl, element.index);
-
-                if (location >= 0) {
-                    gl.enableVertexAttribArray(location);
-                    gl.vertexAttribPointer(
-                        location, element.amount, element.type,
-                        element.normalized, layout.stride, offset
-                    );
-                }
-
-                offset += element.amount * element.type_size;
-            }
-        }
-    }
-
-    /// Undo bind operation
-    unbind(gl: WebGLRenderingContext) {
-        this.layouts.forEach((layout) => {
-            layout.getElements().forEach((_, index) => {
-                gl.disableVertexAttribArray(index);
-            });
-        })
-    }
-}
-- 
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