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Enable resizing WebGLBuffers.

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It doesn't even break the VAO!
This commit is contained in:
Ben Richards 2024-07-15 20:58:26 +12:00
parent b5264ae405
commit 12550a5466
1 changed files with 61 additions and 12 deletions
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73
src/renderer/webgl/wrappers/WebGLBufferWrapper.js
View file

@ -77,10 +77,6 @@ var WebGLBufferWrapper = new Class({
* @since 3.90.0
*/
this.viewF32 = null;
if (dataBuffer.byteLength % Float32Array.BYTES_PER_ELEMENT === 0)
{
this.viewF32 = new Float32Array(dataBuffer);
}
/**
* A Uint8Array view of the dataBuffer.
@ -103,10 +99,6 @@ var WebGLBufferWrapper = new Class({
* @since 3.90.0
*/
this.viewU16 = null;
if (dataBuffer.byteLength % Uint16Array.BYTES_PER_ELEMENT === 0)
{
this.viewU16 = new Uint16Array(dataBuffer);
}
/**
* A Uint32Array view of the dataBuffer.
@ -120,10 +112,6 @@ var WebGLBufferWrapper = new Class({
* @since 3.90.0
*/
this.viewU32 = null;
if (dataBuffer.byteLength % Uint32Array.BYTES_PER_ELEMENT === 0)
{
this.viewU32 = new Uint32Array(dataBuffer);
}
/**
* The type of the buffer.
@ -143,6 +131,8 @@ var WebGLBufferWrapper = new Class({
*/
this.bufferUsage = bufferUsage;
this.createViews();
this.createResource();
},
@ -234,7 +224,62 @@ var WebGLBufferWrapper = new Class({
this.viewU8.subarray(offset, offset + bytes)
);
}
},
/**
* Resizes the dataBuffer of this WebGLBufferWrapper.
* This will recreate the dataBuffer and the views into it.
* All data will be lost.
* All views into the dataBuffer will be destroyed and recreated.
* Any VAO that uses this buffer will need to be re-bound.
*
* @method Phaser.Renderer.WebGL.Wrappers.WebGLBufferWrapper#resize
* @since 3.90.0
* @param {number} bytes - The new size of the buffer in bytes.
*/
resize: function (bytes)
{
var gl = this.renderer.gl;
this.dataBuffer = new ArrayBuffer(bytes);
this.createViews();
this.bind();
gl.bufferData(this.bufferType, this.dataBuffer, this.bufferUsage);
},
/**
* Creates the views into the dataBuffer.
* This is called internally.
*
* @method Phaser.Renderer.WebGL.Wrappers.WebGLBufferWrapper#createViews
* @since 3.90.0
* @private
*/
createViews: function ()
{
var dataBuffer = this.dataBuffer;
this.viewF32 = null;
if (dataBuffer.byteLength % Float32Array.BYTES_PER_ELEMENT === 0)
{
this.viewF32 = new Float32Array(dataBuffer);
}
this.viewU8 = new Uint8Array(dataBuffer);
this.viewU16 = null;
if (dataBuffer.byteLength % Uint16Array.BYTES_PER_ELEMENT === 0)
{
this.viewU16 = new Uint16Array(dataBuffer);
}
this.viewU32 = null;
if (dataBuffer.byteLength % Uint32Array.BYTES_PER_ELEMENT === 0)
{
this.viewU32 = new Uint32Array(dataBuffer);
}
},
/**
@ -248,6 +293,10 @@ var WebGLBufferWrapper = new Class({
this.renderer.gl.deleteBuffer(this.webGLBuffer);
this.webGLBuffer = null;
this.dataBuffer = null;
this.viewF32 = null;
this.viewU8 = null;
this.viewU16 = null;
this.viewU32 = null;
this.renderer = null;
}
});