diff options
| author | Brian Paul <[email protected]> | 2011-09-17 13:19:52 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2011-09-20 20:17:42 -0600 |
| commit | f63dbc600fa95601ca8239ed5e3c3e439fe4565f (patch) | |
| tree | 799d9cdc13c16eeecbfd5ffad868ad8247b518f1 | |
| parent | 1e939f53749781312b1b3b729e2d73493ae6b304 (diff) | |
gallium/util: observe sampler view's first_level in util_blit_pixels_tex()
This lets us blit from a non-zero source level.
| -rw-r--r-- | src/gallium/auxiliary/util/u_blit.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/src/gallium/auxiliary/util/u_blit.c b/src/gallium/auxiliary/util/u_blit.c index 421726b40e0..87530e94a5a 100644 --- a/src/gallium/auxiliary/util/u_blit.c +++ b/src/gallium/auxiliary/util/u_blit.c @@ -660,8 +660,8 @@ void util_blit_flush( struct blit_state *ctx ) /** * Copy pixel block from src texture to dst surface. - * - * XXX Should support selection of level. + * The sampler view's first_level field indicates the source + * mipmap level to use. * XXX need some control over blitting Z and/or stencil. */ void @@ -694,10 +694,14 @@ util_blit_pixels_tex(struct blit_state *ctx, if(normalized) { - s0 /= (float)tex->width0; - s1 /= (float)tex->width0; - t0 /= (float)tex->height0; - t1 /= (float)tex->height0; + /* normalize according to the mipmap level's size */ + int level = src_sampler_view->u.tex.first_level; + float w = (float) u_minify(tex->width0, level); + float h = (float) u_minify(tex->height0, level); + s0 /= w; + s1 /= w; + t0 /= h; + t1 /= h; } assert(ctx->pipe->screen->is_format_supported(ctx->pipe->screen, dst->format, |