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draw: for debug, do rhw divide in aos_sse viewport calcs

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This commit is contained in:
Keith Whitwell 2008-05-22 13:49:38 +01:00
parent 6780a6dede
commit 65cb09249e
1 changed files with 44 additions and 1 deletions
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45
src/gallium/auxiliary/draw/draw_vs_aos.c
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@ -1481,6 +1481,46 @@ static boolean emit_viewport( struct aos_compilation *cp )
}
/* This is useful to be able to see the results on softpipe. Doesn't
* do proper clipping, just assumes the backend can do it during
* rasterization -- for debug only...
*/
static boolean emit_rhw_viewport( struct aos_compilation *cp )
{
struct x86_reg tmp = aos_get_xmm_reg(cp);
struct x86_reg pos = aos_get_shader_reg_xmm(cp,
TGSI_FILE_OUTPUT,
0);
struct x86_reg scale = x86_make_disp(cp->machine_EDX,
Offset(struct aos_machine, scale));
struct x86_reg translate = x86_make_disp(cp->machine_EDX,
Offset(struct aos_machine, translate));
emit_pshufd(cp, tmp, pos, SHUF(W, W, W, W));
sse2_rcpss(cp->func, tmp, tmp);
sse_shufps(cp->func, tmp, tmp, SHUF(X, X, X, X));
sse_mulps(cp->func, pos, scale);
sse_mulps(cp->func, pos, tmp);
sse_addps(cp->func, pos, translate);
/* Set pos[3] = w
*/
mask_write(cp, pos, tmp, TGSI_WRITEMASK_W);
aos_adopt_xmm_reg( cp,
pos,
TGSI_FILE_OUTPUT,
0,
TRUE );
return TRUE;
}
static boolean note_immediate( struct aos_compilation *cp,
struct tgsi_full_immediate *imm )
{
@ -1623,7 +1663,10 @@ static boolean build_vertex_program( struct draw_vs_varient_aos_sse *varient,
goto fail;
if (cp.vaos->base.key.viewport) {
emit_viewport(&cp);
if (0)
emit_viewport(&cp);
else
emit_rhw_viewport(&cp);
}
/* Emit output... TODO: do this eagerly after the last write to a