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authorKeith Whitwell <keith@tungstengraphics.com>2008-05-22 13:49:38 +0100
committerKeith Whitwell <keith@tungstengraphics.com>2008-05-23 09:16:58 +0100
commit65cb09249e750b45ec3fc9a57670fc77250efc5e (patch)
treebcb9a446d9503d52f677434ddacdeb1f428f5c2e /src
parent6780a6dede31e7f2eb465e1d7b507b3e64fe6ec9 (diff)
draw: for debug, do rhw divide in aos_sse viewport calcs
Diffstat (limited to 'src')
-rw-r--r--src/gallium/auxiliary/draw/draw_vs_aos.c45
1 files changed, 44 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/draw/draw_vs_aos.c b/src/gallium/auxiliary/draw/draw_vs_aos.c
index b8fad231ca..40de13a98c 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