scratchfoundation/scratch-vm
1
0
Fork 0
mirror of https://github.com/scratchfoundation/scratch-vm.git synced 2024-12-23 14:32:59 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Merge pull request #2292 from paulkaplan/use-bitmap-video

Browse source 
Use bitmap skin for video preview
This commit is contained in:
Paul Kaplan 2019-10-14 20:17:07 -04:00 committed by GitHub
commit 9b7a9770d7
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 17 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

28
src/io/video.js
View file

@ -21,12 +21,6 @@ class Video {
*/
this._skinId = -1;
/**
* The Scratch Renderer Skin object.
* @type {Skin}
*/
this._skin = null;
/**
* Id for a drawable using the video's skin that will render as a video
* preview.
@ -141,8 +135,8 @@ class Video {
}
_disablePreview () {
if (this._skin) {
this._skin.clear();
if (this._skinId !== -1) {
this.runtime.renderer.updateBitmapSkin(this._skinId, new ImageData(...Video.DIMENSIONS), 1);
this.runtime.renderer.updateDrawableProperties(this._drawable, {visible: false});
}
this._renderPreviewFrame = null;
@ -152,9 +146,8 @@ class Video {
const {renderer} = this.runtime;
if (!renderer) return;
if (this._skinId === -1 && this._skin === null && this._drawable === -1) {
this._skinId = renderer.createPenSkin();
this._skin = renderer._allSkins[this._skinId];
if (this._skinId === -1 && this._drawable === -1) {
this._skinId = renderer.createBitmapSkin(new ImageData(...Video.DIMENSIONS), 1);
this._drawable = renderer.createDrawable(StageLayering.VIDEO_LAYER);
renderer.updateDrawableProperties(this._drawable, {
skinId: this._skinId
@ -176,16 +169,17 @@ class Video {
this._renderPreviewTimeout = setTimeout(this._renderPreviewFrame, this.runtime.currentStepTime);
const canvas = this.getFrame({format: Video.FORMAT_CANVAS});
const imageData = this.getFrame({
format: Video.FORMAT_IMAGE_DATA,
cacheTimeout: this.runtime.currentStepTime
});
if (!canvas) {
this._skin.clear();
if (!imageData) {
renderer.updateBitmapSkin(this._skinId, new ImageData(...Video.DIMENSIONS), 1);
return;
}
const xOffset = Video.DIMENSIONS[0] / -2;
const yOffset = Video.DIMENSIONS[1] / 2;
this._skin.drawStamp(canvas, xOffset, yOffset);
renderer.updateBitmapSkin(this._skinId, imageData, 1);
this.runtime.requestRedraw();
};