From 65cb09249e750b45ec3fc9a57670fc77250efc5e Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Thu, 22 May 2008 13:49:38 +0100 Subject: [PATCH] draw: for debug, do rhw divide in aos_sse viewport calcs --- src/gallium/auxiliary/draw/draw_vs_aos.c | 45 +++++++++++++++++++++++- 1 file changed, 44 insertions(+), 1 deletion(-) diff --git a/src/gallium/auxiliary/draw/draw_vs_aos.c b/src/gallium/auxiliary/draw/draw_vs_aos.c index b8fad231ca1..40de13a98c7 100644 --- a/src/gallium/auxiliary/draw/draw_vs_aos.c +++ b/src/gallium/auxiliary/draw/draw_vs_aos.c @@ -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 -- 2.30.2