From 8f7f22ca1d1594f9a4c6bdef181e24cbdd2c921c Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Thu, 3 Sep 2009 09:11:44 -0700 Subject: [PATCH] i965: Add support for KIL_NV in brw_wm_emit.c I ran into this lack of support when writing a shader that always discarded the fragments. --- src/mesa/drivers/dri/i965/brw_wm_emit.c | 18 ++++++++++++++++++ src/mesa/drivers/dri/i965/brw_wm_pass1.c | 1 + 2 files changed, 19 insertions(+) diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c index 268f7965c00..981864323ec 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_emit.c +++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c @@ -908,6 +908,20 @@ static void emit_kil( struct brw_wm_compile *c, } } +/* KIL_NV kills the pixels that are currently executing, not based on a test + * of the arguments. + */ +static void emit_kil_nv( struct brw_wm_compile *c ) +{ + struct brw_compile *p = &c->func; + struct brw_reg r0uw = retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UW); + + brw_push_insn_state(p); + brw_set_mask_control(p, BRW_MASK_DISABLE); + brw_NOT(p, c->emit_mask_reg, brw_mask_reg(1)); //IMASK + brw_AND(p, r0uw, c->emit_mask_reg, r0uw); + brw_pop_insn_state(p); +} static void fire_fb_write( struct brw_wm_compile *c, GLuint base_reg, @@ -1387,6 +1401,10 @@ void brw_wm_emit( struct brw_wm_compile *c ) emit_kil(c, args[0]); break; + case OPCODE_KIL_NV: + emit_kil_nv(c); + break; + default: _mesa_printf("Unsupported opcode %i (%s) in fragment shader\n", inst->opcode, inst->opcode < MAX_OPCODE ? diff --git a/src/mesa/drivers/dri/i965/brw_wm_pass1.c b/src/mesa/drivers/dri/i965/brw_wm_pass1.c index 3436a247170..9c68bfd78b2 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_pass1.c +++ b/src/mesa/drivers/dri/i965/brw_wm_pass1.c @@ -270,6 +270,7 @@ void brw_wm_pass1( struct brw_wm_compile *c ) case OPCODE_DST: case WM_FRONTFACING: + case OPCODE_KIL_NV: default: break; } -- 2.30.2