[Bug 89597] Implement SSBOs in GLSL front-end and i965

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89597

--- Comment #12 from Iago Toral <itoral at igalia.com> ---
(In reply to Jason Ekstrand from comment #11)
> When you get into SIMD8 (or maybe even for vec4), you'll want to look at the
> SCATTERED_READ/WRITE messages.  They are basically exactly what you want for
> SSBOs on SIMD8/16.

Hi Jason, thanks for the pointer. Right now I think I have most of the SIMD8/16
working, at least for std140, except for row-major matrices, using a
combination of OWord Block (for reads and writes) and Unaligned OWord Block
Reads (for non-constant offset reads).

If this can fix row-major (in vec4 and fs) then it will come also in handy for
std430.

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