diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_wm_emit.c')
-rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_emit.c | 44 |
1 files changed, 38 insertions, 6 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c index c7d87b9d94..412e09b76a 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_emit.c +++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c @@ -34,6 +34,23 @@ #include "brw_context.h" #include "brw_wm.h" +static GLboolean can_do_pln(struct intel_context *intel, + const struct brw_reg *deltas) +{ + struct brw_context *brw = brw_context(&intel->ctx); + + if (!brw->has_pln) + return GL_FALSE; + + if (deltas[1].nr != deltas[0].nr + 1) + return GL_FALSE; + + if (intel->gen < 6 && ((deltas[0].nr & 1) != 0)) + return GL_FALSE; + + return GL_TRUE; +} + /* Not quite sure how correct this is - need to understand horiz * vs. vertical strides a little better. */ @@ -186,6 +203,7 @@ void emit_pixel_w(struct brw_wm_compile *c, const struct brw_reg *deltas) { struct brw_compile *p = &c->func; + struct intel_context *intel = &p->brw->intel; /* Don't need this if all you are doing is interpolating color, for * instance. @@ -196,8 +214,12 @@ void emit_pixel_w(struct brw_wm_compile *c, /* Calc 1/w - just linterp wpos[3] optimized by putting the * result straight into a message reg. */ - brw_LINE(p, brw_null_reg(), interp3, deltas[0]); - brw_MAC(p, brw_message_reg(2), suboffset(interp3, 1), deltas[1]); + if (can_do_pln(intel, deltas)) { + brw_PLN(p, brw_message_reg(2), interp3, deltas[0]); + } else { + brw_LINE(p, brw_null_reg(), interp3, deltas[0]); + brw_MAC(p, brw_message_reg(2), suboffset(interp3, 1), deltas[1]); + } /* Calc w */ if (c->dispatch_width == 16) { @@ -224,6 +246,7 @@ void emit_linterp(struct brw_compile *p, const struct brw_reg *arg0, const struct brw_reg *deltas) { + struct intel_context *intel = &p->brw->intel; struct brw_reg interp[4]; GLuint nr = arg0[0].nr; GLuint i; @@ -235,8 +258,12 @@ void emit_linterp(struct brw_compile *p, for (i = 0; i < 4; i++) { if (mask & (1<<i)) { - brw_LINE(p, brw_null_reg(), interp[i], deltas[0]); - brw_MAC(p, dst[i], suboffset(interp[i],1), deltas[1]); + if (can_do_pln(intel, deltas)) { + brw_PLN(p, dst[i], interp[i], deltas[0]); + } else { + brw_LINE(p, brw_null_reg(), interp[i], deltas[0]); + brw_MAC(p, dst[i], suboffset(interp[i],1), deltas[1]); + } } } } @@ -249,6 +276,7 @@ void emit_pinterp(struct brw_compile *p, const struct brw_reg *deltas, const struct brw_reg *w) { + struct intel_context *intel = &p->brw->intel; struct brw_reg interp[4]; GLuint nr = arg0[0].nr; GLuint i; @@ -260,8 +288,12 @@ void emit_pinterp(struct brw_compile *p, for (i = 0; i < 4; i++) { if (mask & (1<<i)) { - brw_LINE(p, brw_null_reg(), interp[i], deltas[0]); - brw_MAC(p, dst[i], suboffset(interp[i],1), deltas[1]); + if (can_do_pln(intel, deltas)) { + brw_PLN(p, dst[i], interp[i], deltas[0]); + } else { + brw_LINE(p, brw_null_reg(), interp[i], deltas[0]); + brw_MAC(p, dst[i], suboffset(interp[i],1), deltas[1]); + } } } for (i = 0; i < 4; i++) { |