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authorCharmaine Lee <charmainel@vmware.com>2016-04-22 16:06:32 -0700
committerBrian Paul <brianp@vmware.com>2016-04-25 12:59:29 -0600
commitc4cb879f00de89c300462e7b2d0f221d920c396f (patch)
tree8c6b251b6cdb626832ffa52de4b149a503300956 /src/mesa/gl.pc.in
parent686cd3c606536cff3fe6d80f8ebeeca7afa1b37e (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')
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