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gallium: in fallback_copy_texsubimage() create new tex surface for CPU read access

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Was trying to use the strb->surface but it's made for GPU read/write only.
This commit is contained in:
Brian Paul 2008-08-13 14:59:48 -06:00
parent 3a1af846fe
commit f3048ad90e
1 changed files with 7 additions and 1 deletions
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8
src/mesa/state_tracker/st_cb_texture.c
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@ -933,7 +933,12 @@ fallback_copy_texsubimage(GLcontext *ctx,
struct pipe_texture *pt = stImage->pt;
struct pipe_surface *src_surf, *dest_surf;
src_surf = strb->surface;
/* We'd use strb->surface, here but it's created for GPU read/write only */
src_surf = pipe->screen->get_tex_surface( pipe->screen,
strb->texture,
0, 0, 0,
PIPE_BUFFER_USAGE_CPU_READ);
dest_surf = screen->get_tex_surface(screen, pt, face, level, destZ,
PIPE_BUFFER_USAGE_CPU_WRITE);
@ -1016,6 +1021,7 @@ fallback_copy_texsubimage(GLcontext *ctx,
}
screen->tex_surface_release(screen, &dest_surf);
screen->tex_surface_release(screen, &src_surf);
}