704076 - Writing mipmaps: texSubImage2D: subtexture rectangle out of bounds

Status: RESOLVED WONTFIX

(Core :: Graphics: CanvasWebGL, defect)

Description

[Xavier Bourry]

User Agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:8.0) Gecko/20100101 Firefox/8.0
Build ID: 20111104165243

Steps to reproduce:

I draw a subtexture on a mipmapped texture. I want to draw the texture at the mipmaps levels 0 (original size) and 1. I use texSubImage2D.

GL.texSubImage2D(GL.TEXTURE_2D, 0,0,0, GL.RGB, GL.UNSIGNED_BYTE, myTexture);
GL.texSubImage2D(GL.TEXTURE_2D, 1,0,0, GL.RGB, GL.UNSIGNED_BYTE, mySmallerTexture);

where myTexture and mySmallerTexture are javascript Image objects POT.



Actual results:

The first line works fine : it draw the texture at the mipmap level 0 :)
The second line throw an exception :
WebGL: texSubImage2D: subtexture rectangle out of bounds

I have tested a lot of changes and it did nothing. This is not a problem of mySmallerTexture size nor of (x,y) coordinates, and not a problem with the image format because when I switch myTexture and mySmallerTexture, mySmallerTexture is drawed at the mipmap level 0.

There is no problem with Chromium or with previous version of Firefox (I use Firefox 8.0). 

The bug happens with this webgl demo : http://www.spacegoo.com/cadillac




Expected results:

mySmallerTexture should have been drawed at the mipmap level 1.

Comment 1

[Kelsey Gilbert [:jgilbert]]

This seems to behave the same in Firefox and Chromium for me, on Linux.
Is this still a problem?

Comment 2

[Sylvestre Ledru [:Sylvestre]]

Closing because no crash reported since 12 weeks.

Comment 3

[Sylvestre Ledru [:Sylvestre]]

Closing because no crash reported since 12 weeks.