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author | Iago Toral Quiroga <[email protected]> | 2019-07-31 09:47:08 +0200 |
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committer | Iago Toral Quiroga <[email protected]> | 2019-08-13 09:44:12 +0200 |
commit | 48f5c34301e9f03a18b928251180c82b8c7571d1 (patch) | |
tree | 4f2b2381711609d9207e509765ca8b9def83ebe2 /src/amd | |
parent | 62e0ca3064ba2500f97025599d5ca7210cb4dc04 (diff) |
nir: add a pass to clamp gl_PointSize to a range
The OpenGL and OpenGL ES specs require that implementations clamp the
value of gl_PointSize to an implementation-depedent range. This pass
is useful for any GPU hardware that doesn't do this automatically
for either one or both sides of the range, such as V3D.
v2:
- Turn into a generic NIR pass (Eric).
- Make the pass work before lower I/O so we can use the deref variable
to inspect if we are writing to gl_PointSize (Eric).
- Make the pass take the range to clamp as parameter and allow it
to clamp to both sides of the range or just one side.
- Make the pass report progress.
v3:
- Fix copyright header (Eric)
- use fmin/fmax instead of bcsel to clamp (Eric)
Reviewed-by: Eric Anholt <[email protected]>
Diffstat (limited to 'src/amd')
0 files changed, 0 insertions, 0 deletions