AuroraMiddleware/gtk
1
0
Fork 1
mirror of https://gitlab.gnome.org/GNOME/gtk.git synced 2025-01-15 14:50:06 +00:00
Code Issues Projects Releases Wiki Activity

broadway: Refcount textures

Browse Source 
We want to delay some rendering, and to make that safe we need to correctly
refcount the use of blob uris for the textures so that we don't unref
it while something is scheduled to use it.
This commit is contained in:
Alexander Larsson 2019-03-22 16:41:19 +01:00
parent 311aa01e01
commit 2f85443e37
1 changed files with 28 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
gdk/broadway/broadway.js
View File

@ -128,6 +128,27 @@ function getButtonMask (button) {
return 0;
}
function Texture(id, data) {
var blob = new Blob([data],{type: "image/png"});
this.url = window.URL.createObjectURL(blob);
this.refcount = 1;
this.id = id;
textures[id] = this;
}
Texture.prototype.ref = function() {
this.refcount += 1;
return this;
}
Texture.prototype.unref = function() {
this.refcount -= 1;
if (this.refcount == 0) {
window.URL.revokeObjectURL(this.url);
delete textures[this.id];
}
}
function sendConfigureNotify(surface)
{
sendInput("w", [surface.id, surface.x, surface.y, surface.width, surface.height]);
@ -499,8 +520,11 @@ SwapNodes.prototype.insertNode = function(parent, posInParent, oldNode)
image.height = rect.height;
image.style["position"] = "absolute";
set_rect_style(image, rect);
var texture_url = textures[texture_id];
image.src = texture_url;
var texture = textures[texture_id];
image.src = texture.url;
texture.ref();
// Unref blob url when loaded
image.onload = function() { texture.unref(); };
newNode = image;
}
break;
@ -789,16 +813,12 @@ function cmdSurfaceSetNodes(id, node_data)
function cmdUploadTexture(id, data)
{
var blob = new Blob([data],{type: "image/png"});
var url = window.URL.createObjectURL(blob);
textures[id] = url;
new Texture (id, data); // Stores a ref in textures
}
function cmdReleaseTexture(id)
{
var url = textures[id];
window.URL.revokeObjectURL(url);
delete textures[id];
textures[id].unref();
}
function cmdGrabPointer(id, ownerEvents)