diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_emit.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c index 4372ed3d9a1..d65b1332c61 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_emit.c +++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c @@ -1024,8 +1024,8 @@ static void emit_fb_write( struct brw_wm_compile *c, } -/* Post-fragment-program processing. Send the results to the - * framebuffer. +/** + * Move a GPR to scratch memory. */ static void emit_spill( struct brw_wm_compile *c, struct brw_reg reg, @@ -1049,6 +1049,9 @@ static void emit_spill( struct brw_wm_compile *c, } +/** + * Load a GPR from scratch memory. + */ static void emit_unspill( struct brw_wm_compile *c, struct brw_reg reg, GLuint slot ) @@ -1069,13 +1072,14 @@ static void emit_unspill( struct brw_wm_compile *c, brw_dp_READ_16(p, retype(vec16(reg), BRW_REGISTER_TYPE_UW), - 1, + 1, slot); } /** - * Retrieve upto 4 GEN4 register pairs for the given wm reg: + * Retrieve up to 4 GEN4 register pairs for the given wm reg: + * Args with unspill_reg != 0 will be loaded from scratch memory. */ static void get_argument_regs( struct brw_wm_compile *c, struct brw_wm_ref *arg[], @@ -1085,13 +1089,12 @@ static void get_argument_regs( struct brw_wm_compile *c, for (i = 0; i < 4; i++) { if (arg[i]) { - - if (arg[i]->unspill_reg) - emit_unspill(c, + if (arg[i]->unspill_reg) + emit_unspill(c, brw_vec8_grf(arg[i]->unspill_reg, 0), arg[i]->value->spill_slot); - regs[i] = arg[i]->hw_reg; + regs[i] = arg[i]->hw_reg; } else { regs[i] = brw_null_reg(); @@ -1100,6 +1103,9 @@ static void get_argument_regs( struct brw_wm_compile *c, } +/** + * For values that have a spill_slot!=0, write those regs to scratch memory. + */ static void spill_values( struct brw_wm_compile *c, struct brw_wm_value *values, GLuint nr ) |