From 169b6c1955deee7333d61f9ff149b7124bdea7d1 Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Mon, 1 Dec 2014 00:53:02 -0800 Subject: [PATCH] i965/vs: Handle vertex color clamping in emit_urb_slot(). Vertex color clamping only applies to a few specific built-ins: COL0/1 and BFC0/1 (aka gl_[Secondary]{Front,Back}Color). It seems weird to handle special cases in a function called emit_generic_urb_slot(). emit_urb_slot() is all about handling special cases, so it makes more sense to handle this there. Signed-off-by: Kenneth Graunke Reviewed-by: Matt Turner Reviewed-by: Chris Forbes --- src/mesa/drivers/dri/i965/brw_vec4.h | 2 +- .../drivers/dri/i965/brw_vec4_visitor.cpp | 22 ++++++++++--------- 2 files changed, 13 insertions(+), 11 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_vec4.h b/src/mesa/drivers/dri/i965/brw_vec4.h index 500ec79dd5a..d94c32368a5 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4.h +++ b/src/mesa/drivers/dri/i965/brw_vec4.h @@ -502,7 +502,7 @@ public: void emit_ndc_computation(); void emit_psiz_and_flags(dst_reg reg); void emit_clip_distances(dst_reg reg, int offset); - void emit_generic_urb_slot(dst_reg reg, int varying); + vec4_instruction *emit_generic_urb_slot(dst_reg reg, int varying); void emit_urb_slot(dst_reg reg, int varying); void emit_shader_time_begin(); diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp index 417dcb15e29..96816b6fbd0 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp @@ -3055,22 +3055,14 @@ vec4_visitor::emit_clip_distances(dst_reg reg, int offset) } } -void +vec4_instruction * vec4_visitor::emit_generic_urb_slot(dst_reg reg, int varying) { assert (varying < VARYING_SLOT_MAX); reg.type = output_reg[varying].type; current_annotation = output_reg_annotation[varying]; /* Copy the register, saturating if necessary */ - vec4_instruction *inst = emit(MOV(reg, - src_reg(output_reg[varying]))); - if ((varying == VARYING_SLOT_COL0 || - varying == VARYING_SLOT_COL1 || - varying == VARYING_SLOT_BFC0 || - varying == VARYING_SLOT_BFC1) && - key->clamp_vertex_color) { - inst->saturate = true; - } + return emit(MOV(reg, src_reg(output_reg[varying]))); } void @@ -3108,6 +3100,16 @@ vec4_visitor::emit_urb_slot(dst_reg reg, int varying) case BRW_VARYING_SLOT_PAD: /* No need to write to this slot */ break; + case VARYING_SLOT_COL0: + case VARYING_SLOT_COL1: + case VARYING_SLOT_BFC0: + case VARYING_SLOT_BFC1: { + vec4_instruction *inst = emit_generic_urb_slot(reg, varying); + if (key->clamp_vertex_color) + inst->saturate = true; + break; + } + default: emit_generic_urb_slot(reg, varying); break; -- 2.30.2