初始化

2025-07-30 13:39:32 +08:00
commit d1f2452b28
253 changed files with 32087 additions and 0 deletions
--- a/vendor/h264-live-player/Texture.ts
+++ b/vendor/h264-live-player/Texture.ts
@@ -0,0 +1,61 @@
+import Size from './utils/Size';
+import assert from './utils/assert';
+import Program from './Program';
+
+export default class Texture {
+    public readonly texture: WebGLTexture | null;
+    public readonly format: GLenum;
+    private textureIDs: number[];
+
+    static create (gl: WebGLRenderingContext, format: number): Texture {
+        return new Texture(gl, undefined, format);
+    }
+
+    constructor(readonly gl: WebGLRenderingContext, readonly size?: Size, format?: GLenum) {
+        this.texture = gl.createTexture();
+        gl.bindTexture(gl.TEXTURE_2D, this.texture);
+        this.format = format ? format : gl.LUMINANCE;
+        if (size) {
+            gl.texImage2D(gl.TEXTURE_2D, 0, this.format, size.w, size.h, 0, this.format, gl.UNSIGNED_BYTE, null);
+        }
+        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
+        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
+        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+        this.textureIDs = [gl.TEXTURE0, gl.TEXTURE1, gl.TEXTURE2];
+    }
+
+    public fill(textureData: Uint8Array, useTexSubImage2D?: boolean, w?: number, h?: number): void {
+        if (typeof w === 'undefined' || typeof h === 'undefined') {
+            if (!this.size) {
+                return;
+            }
+            w = this.size.w;
+            h = this.size.h;
+        }
+        const gl = this.gl;
+        assert(textureData.length >= w * h,
+            'Texture size mismatch, data:' + textureData.length + ', texture: ' + w * h);
+        gl.bindTexture(gl.TEXTURE_2D, this.texture);
+        if (useTexSubImage2D) {
+            gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, w, h, this.format, gl.UNSIGNED_BYTE, textureData);
+        } else {
+            // texImage2D seems to be faster, thus keeping it as the default
+            gl.texImage2D(gl.TEXTURE_2D, 0, this.format, w, h, 0, this.format, gl.UNSIGNED_BYTE, textureData);
+        }
+    }
+
+    public image2dBuffer (buffer: Uint8Array, width: number, height: number) {
+        this.fill(buffer, false, width, height);
+    }
+
+    public bind(n: number, program: Program, name: string): void {
+        const gl = this.gl;
+        if (!program.program) {
+            return;
+        }
+        gl.activeTexture(this.textureIDs[n]);
+        gl.bindTexture(gl.TEXTURE_2D, this.texture);
+        gl.uniform1i(gl.getUniformLocation(program.program, name), n);
+    }
+}