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author | Charmaine Lee <charmainel@vmware.com> | 2016-04-22 16:06:32 -0700 |
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committer | Brian Paul <brianp@vmware.com> | 2016-04-25 12:59:29 -0600 |
commit | c4cb879f00de89c300462e7b2d0f221d920c396f (patch) | |
tree | 8c6b251b6cdb626832ffa52de4b149a503300956 /src/mesa/gl.pc.in | |
parent | 686cd3c606536cff3fe6d80f8ebeeca7afa1b37e (diff) |
svga: eliminiate unnecessary constant buffer updates
Currently if the texture binding is changed, emit_fs_consts()
is triggered to update texture scaling factor for
rectangle texture or texture buffer size in the constant buffer.
But the update is only relevant if the texture binding includes
a rectangle texture or a texture buffer.
To eliminate the unnecessary constant buffer updates due to other texture
binding changes, a new flag SVGA_NEW_TEXTURE_CONSTS will be used
to trigger fragment shader constant buffer update when a rectangle texture
or a texture buffer is bound.
With this patch, the number of constant buffer updates in Lightsmark2008
reduces from hundreds per frame to about 28 per frame.
Reviewed-by: Brian Paul <brianp@vmware.com>
Diffstat (limited to 'src/mesa/gl.pc.in')
0 files changed, 0 insertions, 0 deletions