108 lines
3.0 KiB
Plaintext
108 lines
3.0 KiB
Plaintext
/*
|
|
* Copyright © 2006 Intel Corporation
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*
|
|
* Authors:
|
|
* Keith Packard <keithp@keithp.com>
|
|
* Eric Anholt <eric@anholt.net>
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Inputs (note all sub-register addresses are bytes, not float indices)
|
|
*
|
|
* Note that the vertices will have been reordered:
|
|
*
|
|
* V0 is topmost (leftmost among topmost) (upper left)
|
|
* V1 is next clockwise (lower right)
|
|
* V2 is remaining (lower left)
|
|
*
|
|
* V0 ...................... XX
|
|
* | .
|
|
* | .
|
|
* | .
|
|
* V2------------------------V1
|
|
*
|
|
* G0 thread state -- just pass along
|
|
*
|
|
* G1 and G2 are fixed by SF spec
|
|
*
|
|
* G1.0 reserved
|
|
* G1.4 Provoking vertex
|
|
* G1.8 Determinant
|
|
* G1.12 X1 - X0
|
|
* G1.16 X2 - X0
|
|
* G1.20 Y1 - Y0
|
|
* G1.24 Y2 - Y0
|
|
* G1.30 reserved
|
|
*
|
|
* G2.0 Z0
|
|
* G2.4 1/W0
|
|
* G2.8 Z1
|
|
* G2.12 1/W1
|
|
* G2.16 Z2
|
|
* G2.20 1/W2
|
|
* G2.24 reserved
|
|
* G2.30 reserved
|
|
*
|
|
* G3 is V0 Vertex Attribute Data from URB (upper left)
|
|
*
|
|
* G3.0 u0
|
|
* G3.4 v0
|
|
*
|
|
* G4 is V1 Vertex Attribute Data from URB (lower right)
|
|
*
|
|
* G4.0 u1
|
|
* G4.4 v1
|
|
*
|
|
* G5 is V2 Vertex Attribute Data from URB (lower left)
|
|
*
|
|
*/
|
|
|
|
/* Compute inverses of the input deltas */
|
|
send (4) 0 g6<1>F g1.12<4,4,1>F math inv mlen 1 rlen 1 { align1 };
|
|
|
|
/* texture location at V0 */
|
|
mov (4) m3<1>F g3<4,4,1>F { align1 };
|
|
|
|
/* compute V1 - V2 (motion in X) for texture coordinates */
|
|
add (4) g7<1>F g4<4,4,1>F -g5<4,4,1>F { align1 };
|
|
|
|
/* multiply by 1/dx */
|
|
mul (4) m1<1>F g7<4,4,1>F g6.0<0,1,0>F { align1 };
|
|
|
|
/* Compute V2 - V0 (motion in Y) for texture coordinates */
|
|
add (4) g7<1>F g5<4,4,1>F -g3<4,4,1>F { align1 };
|
|
|
|
/* multiply by 1/dy */
|
|
mul (4) m2<1>F g7<4,4,1>F g6.8<0,1,0>F {align1 };
|
|
|
|
/* and we're done */
|
|
send (8) 0 null g0<8,8,1>F urb 0 transpose used complete mlen 4 rlen 0 { align1 EOT };
|
|
nop;
|
|
nop;
|
|
nop;
|
|
nop;
|
|
nop;
|
|
nop;
|
|
nop;
|
|
nop;
|