fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-09 04:38:03 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

radeonsi: reject textures that don't fit in the CPU address space

Browse source 
Reviewed-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38587>
This commit is contained in:
Marek Olšák 2025-11-26 15:39:52 -05:00 • committed by Marge Bot
parent 566c666d57
commit f6bf120d02
1 changed files with 12 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
src/gallium/drivers/radeonsi/si_texture.c
View file

@ -1059,6 +1059,18 @@ static struct si_texture *si_texture_create_object(struct pipe_screen *screen,
return NULL;
}
/* Fail to allocate or import textures greater than 4GB on 32-bit CPU targets because Mesa
* uses size_t for all image addressing and size computations, which doesn't work with
* textures bigger than 4GB.
*
* Due to a limitation in glCompressedTex* functions, compressed textures can only occupy
* at most 2GB on all CPU targets because the maximum value of the imageSize parameter is
* INT_MAX. Bigger textures are automatically rejected by the imageSize checking in the GL
* frontend. This could be fixed with a new GL extension.
*/
if (alloc_size > SIZE_MAX)
return NULL;
tex = CALLOC_STRUCT_CL(si_texture);
if (!tex)
goto error;