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Keith's fixes for RSW and XPD (need temporaries)

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Brian Paul
2005-10-28 15:40:08 +00:00
parent 86734ddae4
commit 3eec2901db
1 changed files with 22 additions and 9 deletions
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31
src/mesa/tnl/t_vb_arbprogram.c
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@@ -129,13 +129,16 @@ static void do_RSW( struct arb_vp_machine *m, union instruction op )
const GLfloat *arg0 = m->File[op.rsw.file0][op.rsw.idx0];
GLuint swz = op.rsw.swz;
GLuint neg = op.rsw.neg;
GLfloat tmp[4];
ASSERT(result != arg0); /* this would be very bad */
result[0] = arg0[GET_RSW(swz, 0)];
result[1] = arg0[GET_RSW(swz, 1)];
result[2] = arg0[GET_RSW(swz, 2)];
result[3] = arg0[GET_RSW(swz, 3)];
/* Need a temporary to be correct in the case where result == arg0.
*/
COPY_4V(tmp, arg0);
result[0] = tmp[GET_RSW(swz, 0)];
result[1] = tmp[GET_RSW(swz, 1)];
result[2] = tmp[GET_RSW(swz, 2)];
result[3] = tmp[GET_RSW(swz, 3)];
if (neg) {
if (neg & 0x1) result[0] = -result[0];
@@ -254,6 +257,8 @@ static void do_DST( struct arb_vp_machine *m, union instruction op )
const GLfloat *arg0 = m->File[op.alu.file0][op.alu.idx0];
const GLfloat *arg1 = m->File[op.alu.file1][op.alu.idx1];
/* This should be ok even if result == arg0 or result == arg1.
*/
result[0] = 1.0F;
result[1] = arg0[1] * arg1[1];
result[2] = arg0[2];
@@ -498,10 +503,18 @@ static void do_XPD( struct arb_vp_machine *m, union instruction op )
GLfloat *result = m->File[0][op.alu.dst];
const GLfloat *arg0 = m->File[op.alu.file0][op.alu.idx0];
const GLfloat *arg1 = m->File[op.alu.file1][op.alu.idx1];
GLfloat tmp[3];
result[0] = arg0[1] * arg1[2] - arg0[2] * arg1[1];
result[1] = arg0[2] * arg1[0] - arg0[0] * arg1[2];
result[2] = arg0[0] * arg1[1] - arg0[1] * arg1[0];
tmp[0] = arg0[1] * arg1[2] - arg0[2] * arg1[1];
tmp[1] = arg0[2] * arg1[0] - arg0[0] * arg1[2];
tmp[2] = arg0[0] * arg1[1] - arg0[1] * arg1[0];
/* Need a temporary to be correct in the case where result == arg0
* or result == arg1.
*/
result[0] = tmp[0];
result[1] = tmp[1];
result[2] = tmp[2];
}
static void do_NOP( struct arb_vp_machine *m, union instruction op )