diff options
| author | Matt Turner <[email protected]> | 2015-07-11 22:46:19 -0700 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2015-07-29 09:34:51 -0700 |
| commit | f8a647883a14694f1b758c12187b3f35b9d039a7 (patch) | |
| tree | cd11148549da4b67e6a9a3f1b941b3dfaa27295c /src/mesa/state_tracker | |
| parent | ecc559218d0a544f8a5f878c500f125c2d588d82 (diff) | |
mesa: Use floats for viewport bounds.
ARB_viewport_array specifies that DEPTH_RANGE consists of double-
precision parameters (corresponding commit d4dc35987), and a preparatory
commit (6340e609a) added _mesa_get_viewport_xform() which returned
double-precision scale[3] and translate[3] vectors, even though X, Y,
Width, and Height were still floats.
All users of _mesa_get_viewport_xform() immediately convert the double
scale and translation vectors into floats (which were floats originally,
but were converted to doubles in _mesa_get_viewport_xform(), sigh).
i965 at least cannot consume doubles (see SF_CLIP_VIEWPORT). If we want
to pass doubles to hardware, we should have a different function that
does that.
Acked-by: Mathias Froehlich <[email protected]>
Diffstat (limited to 'src/mesa/state_tracker')
| -rw-r--r-- | src/mesa/state_tracker/st_atom_viewport.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_atom_viewport.c b/src/mesa/state_tracker/st_atom_viewport.c index 2f62590c4f1..9a692cecade 100644 --- a/src/mesa/state_tracker/st_atom_viewport.c +++ b/src/mesa/state_tracker/st_atom_viewport.c @@ -64,7 +64,7 @@ update_viewport( struct st_context *st ) */ for (i = 0; i < ctx->Const.MaxViewports; i++) { - double scale[3], translate[3]; + float scale[3], translate[3]; _mesa_get_viewport_xform(ctx, i, scale, translate); st->state.viewport[i].scale[0] = scale[0]; |