Module: Mesa Branch: master Commit: 5fbd8da8dfb89c61f0ed143ad3f21a2b8752a476 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=5fbd8da8dfb89c61f0ed143ad3f21a2b8752a476
Author: Eric Anholt <[email protected]> Date: Mon Dec 13 12:15:21 2010 -0800 i956: Fix the old FP path fragment position setup on gen6. Fixes fp-arb-fragment-coord-conventions-none --- src/mesa/drivers/dri/i965/brw_wm_emit.c | 38 ++++++++++++++++-------------- 1 files changed, 20 insertions(+), 18 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c index a0e8603..a8be106 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_emit.c +++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c @@ -219,43 +219,45 @@ void emit_wpos_xy(struct brw_wm_compile *c, const struct brw_reg *arg0) { struct brw_compile *p = &c->func; + struct intel_context *intel = &p->brw->intel; + struct brw_reg delta_x = retype(arg0[0], BRW_REGISTER_TYPE_W); + struct brw_reg delta_y = retype(arg0[1], BRW_REGISTER_TYPE_W); if (mask & WRITEMASK_X) { + if (intel->gen >= 6) { + struct brw_reg delta_x_f = retype(delta_x, BRW_REGISTER_TYPE_F); + brw_MOV(p, delta_x_f, delta_x); + delta_x = delta_x_f; + } + if (c->fp->program.PixelCenterInteger) { /* X' = X */ - brw_MOV(p, - dst[0], - retype(arg0[0], BRW_REGISTER_TYPE_W)); + brw_MOV(p, dst[0], delta_x); } else { /* X' = X + 0.5 */ - brw_ADD(p, - dst[0], - retype(arg0[0], BRW_REGISTER_TYPE_W), - brw_imm_f(0.5)); + brw_ADD(p, dst[0], delta_x, brw_imm_f(0.5)); } } if (mask & WRITEMASK_Y) { + if (intel->gen >= 6) { + struct brw_reg delta_y_f = retype(delta_y, BRW_REGISTER_TYPE_F); + brw_MOV(p, delta_y_f, delta_y); + delta_y = delta_y_f; + } + if (c->fp->program.OriginUpperLeft) { if (c->fp->program.PixelCenterInteger) { /* Y' = Y */ - brw_MOV(p, - dst[1], - retype(arg0[1], BRW_REGISTER_TYPE_W)); + brw_MOV(p, dst[1], delta_y); } else { - /* Y' = Y + 0.5 */ - brw_ADD(p, - dst[1], - retype(arg0[1], BRW_REGISTER_TYPE_W), - brw_imm_f(0.5)); + brw_ADD(p, dst[1], delta_y, brw_imm_f(0.5)); } } else { float center_offset = c->fp->program.PixelCenterInteger ? 0.0 : 0.5; /* Y' = (height - 1) - Y + center */ - brw_ADD(p, - dst[1], - negate(retype(arg0[1], BRW_REGISTER_TYPE_W)), + brw_ADD(p, dst[1], negate(delta_y), brw_imm_f(c->key.drawable_height - 1 + center_offset)); } } _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
