diff options
author | Keith Whitwell <keithw@vmware.com> | 2010-01-11 16:15:37 +0000 |
---|---|---|
committer | Keith Whitwell <keithw@vmware.com> | 2010-02-03 10:36:55 +0000 |
commit | aac76dcea95dc80663c78a5c20ec3723a010fd8b (patch) | |
tree | 4d3d968f9d3c3ccac4ac1dc15277205d6b3ff190 /src/mesa | |
parent | bd03025621b96ad5ad3136da6a30a5720aa7dc48 (diff) |
st/mesa: remove some floating point divides in viewport calculation
Compiler can't usually turn x/2.0f into x * 0.5f, though we're happy
with either.
Diffstat (limited to 'src/mesa')
-rw-r--r-- | src/mesa/state_tracker/st_atom_viewport.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/mesa/state_tracker/st_atom_viewport.c b/src/mesa/state_tracker/st_atom_viewport.c index 27ec2eb0331..b82bbfe410f 100644 --- a/src/mesa/state_tracker/st_atom_viewport.c +++ b/src/mesa/state_tracker/st_atom_viewport.c @@ -62,9 +62,9 @@ update_viewport( struct st_context *st ) GLfloat x = (GLfloat)ctx->Viewport.X; GLfloat y = (GLfloat)ctx->Viewport.Y; GLfloat z = ctx->Viewport.Near; - GLfloat half_width = (GLfloat)ctx->Viewport.Width / 2.0f; - GLfloat half_height = (GLfloat)ctx->Viewport.Height / 2.0f; - GLfloat half_depth = (GLfloat)(ctx->Viewport.Far - ctx->Viewport.Near) / 2.0f; + GLfloat half_width = (GLfloat)ctx->Viewport.Width * 0.5f; + GLfloat half_height = (GLfloat)ctx->Viewport.Height * 0.5f; + GLfloat half_depth = (GLfloat)(ctx->Viewport.Far - ctx->Viewport.Near) * 0.5f; st->state.viewport.scale[0] = half_width; st->state.viewport.scale[1] = half_height * yScale; |