From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 49140] r600_state_common.c:761:r600_draw_vbo: Assertion `0'
failed
Date: Fri, 27 Apr 2012 00:38:49 +0000
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https://bugs.freedesktop.org/show_bug.cgi?id=49140
--- Comment #4 from Vadim 2012-04-26 17:38:49 PDT ---
Created attachment 60642
--> https://bugs.freedesktop.org/attachment.cgi?id=60642
lorentzTransform function
It seems you could replace the following lines in the lorentzTransform
function:
r.w = g*p.w - v.x*g*p.x - v.y*g*p.y - v.z*g*p.z;
r.x = -v.x*g*p.w + (1.0 + gm1*v.x*v.x/v2)*p.x + (gm1*v.x*v.y/v2)*p.y +
(gm1*v.x*v.z/v2)*p.z;
r.y = -v.y*g*p.w + (gm1*v.y*v.x/v2)*p.x + (1.0 + gm1*v.y*v.y/v2)*p.y +
(gm1*v.y*v.z/v2)*p.z,
r.z = -v.z*g*p.w + (gm1*v.z*v.x/v2)*p.x + (gm1*v.z*v.y/v2)*p.y +
(1.0+gm1*v.z*v.z/v2)*p.z;
with
vec3 p3 = vec3(p.x, p.y, p.z);
float t = dot(v, p3);
float t2 = gm1*t/v2 - g*p.w;
r = vec4( v*t2 + p3, g * (p.w - t));
Attachment contains the complete text of the modified function with the
separate steps of the transformation in the comments. Please check if all steps
are correct. Anyway, it shows the direction.
Original shader uses 130 regs, 1262 vliw alu instructions on my system.
Modified version - 81 reg, 778 instructions.
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