brw_wm_iz.c File Reference

Include dependency graph for brw_wm_iz.c:

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Defines
#define	P   0
#define	C   1
#define	N   2
Functions
void	brw_wm_lookup_iz (unsigned line_aa, unsigned lookup, struct brw_wm_prog_key *key)
Variables
struct {
unsigned   mode:2
unsigned   sd_present:1
unsigned   sd_to_rt:1
unsigned   dd_present:1
unsigned   ds_present:1
}	wm_iz_table [0x80]

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Define Documentation

#define C   1

Definition at line 40 of file brw_wm_iz.c.

#define N   2

Definition at line 41 of file brw_wm_iz.c.

#define P   0

Definition at line 39 of file brw_wm_iz.c.

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Function Documentation

void brw_wm_lookup_iz	(	unsigned	line_aa,
		unsigned	lookup,
		struct brw_wm_prog_key *	key
	)

Definition at line 181 of file brw_wm_iz.c.

References brw_wm_prog_key::aa_dest_stencil_reg, AA_NEVER, AA_SOMETIMES, assert, brw_wm_prog_key::computes_depth, dd_present, brw_wm_prog_key::dest_depth_reg, ds_present, IZ_BIT_MAX, IZ_PS_COMPUTES_DEPTH_BIT, brw_wm_prog_key::nr_depth_regs, brw_wm_prog_key::runtime_check_aads_emit, sd_present, sd_to_rt, brw_wm_prog_key::source_depth_reg, brw_wm_prog_key::source_depth_to_render_target, and wm_iz_table.

{
   unsigned reg = 2;

   assert (lookup < IZ_BIT_MAX);
      
   if (lookup & IZ_PS_COMPUTES_DEPTH_BIT)
      key->computes_depth = 1;

   if (wm_iz_table[lookup].sd_present) {
      key->source_depth_reg = reg;
      reg += 2;
   }

   if (wm_iz_table[lookup].sd_to_rt)
      key->source_depth_to_render_target = 1;

   if (wm_iz_table[lookup].ds_present || line_aa != AA_NEVER) {
      key->aa_dest_stencil_reg = reg;
      key->runtime_check_aads_emit = (!wm_iz_table[lookup].ds_present &&
                                      line_aa == AA_SOMETIMES);
      reg++;
   }

   if (wm_iz_table[lookup].dd_present) {
      key->dest_depth_reg = reg;
      reg+=2;
   }

   key->nr_depth_regs = (reg+1)/2;
}

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Variable Documentation

unsigned dd_present

Definition at line 47 of file brw_wm_iz.c.

unsigned ds_present

Definition at line 48 of file brw_wm_iz.c.

unsigned mode

Definition at line 44 of file brw_wm_iz.c.

unsigned sd_present

Definition at line 45 of file brw_wm_iz.c.

unsigned sd_to_rt

Definition at line 46 of file brw_wm_iz.c.

struct { ... } wm_iz_table[ 0x80 ]

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