diff options
| author | Keith Whitwell <keith@tungstengraphics.com> | 2008-05-21 20:32:43 +0100 |
|---|---|---|
| committer | Keith Whitwell <keith@tungstengraphics.com> | 2008-05-23 09:16:56 +0100 |
| commit | 2302a5d3c1ea2c682dfc034012a054b8327a81de (patch) | |
| tree | 1aae56c3625e05c986deec066fc13e118a142a37 /src/gallium | |
| parent | 194a7be28f6eed502f2475d9a637cb3610ca75f6 (diff) | |
draw: fix fpu control word manipulations
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_vs_aos.c | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/src/gallium/auxiliary/draw/draw_vs_aos.c b/src/gallium/auxiliary/draw/draw_vs_aos.c index 67761f881d..e736990acc 100644 --- a/src/gallium/auxiliary/draw/draw_vs_aos.c +++ b/src/gallium/auxiliary/draw/draw_vs_aos.c @@ -690,41 +690,47 @@ static void x87_fstp_dest4( struct aos_compilation *cp, x87_fstp_or_pop(cp->func, writemask, 3, ptr); } +#define FPU_MANIP 1 /* Save current x87 state and put it into single precision mode. */ static void save_fpu_state( struct aos_compilation *cp ) { -#if 0 - x87_fnstcw( cp->func, x86_make_disp(regEDX, get_offset(m, &m->fpucntl_restore))); - x87_fldcw( cp->func, ); +#if FPU_MANIP + x87_fnstcw( cp->func, x86_make_disp(cp->machine_EDX, + Offset(struct aos_machine, fpu_restore))); #endif } static void restore_fpu_state( struct aos_compilation *cp ) { -#if 0 +#if FPU_MANIP x87_fnclex(cp->func); - x87_fldcw(cp->func, x86_make_disp(regEDX, get_offset(m, &m->fpucntl_restore))); + x87_fldcw( cp->func, x86_make_disp(cp->machine_EDX, + Offset(struct aos_machine, fpu_restore))); #endif } static void set_fpu_round_neg_inf( struct aos_compilation *cp ) { -#if 0 - if (cp->fpucntl != RND_NEG_FPU) { - struct x86_reg regEDX = x86_make_reg(file_REG32, reg_DX); - struct arb_vp_machine *m = NULL; - - cp->fpucntl = RND_NEG_FPU; +#if FPU_MANIP + if (cp->fpucntl != FPU_RND_NEG) { + cp->fpucntl = FPU_RND_NEG; x87_fnclex(cp->func); - x87_fldcw(cp->func, x86_make_disp(regEDX, get_offset(m, &m->fpucntl_rnd_neg))); + x87_fldcw( cp->func, x86_make_disp(cp->machine_EDX, + Offset(struct aos_machine, fpu_rnd_neg_inf))); } #endif } static void set_fpu_round_nearest( struct aos_compilation *cp ) { -#if 0 +#if FPU_MANIP + if (cp->fpucntl != FPU_RND_NEAREST) { + cp->fpucntl = FPU_RND_NEAREST; + x87_fnclex(cp->func); + x87_fldcw( cp->func, x86_make_disp(cp->machine_EDX, + Offset(struct aos_machine, fpu_rnd_nearest))); + } #endif } @@ -1590,6 +1596,7 @@ static boolean build_vertex_program( struct draw_vs_varient_aos_sse *varient, Offset( struct draw_vs_varient_aos_sse, machine ))); save_fpu_state( &cp ); + set_fpu_round_nearest( &cp ); /* Note address for loop jump */ |