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i965/fs: Remove brw_wm_compile::computes_depth field.

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Everybody determines this by checking if fp's OutputsWritten field
contains the FRAG_RESULT_DEPTH bit.  Rather than having payload setup
check this and set the computes_depth flag, we can just do the check in
the only place that actually used it: emit_fb_writes().

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
This commit is contained in:
Kenneth Graunke 2012-11-20 12:21:40 -08:00
parent 529fe420ba
commit ce96f6db90
4 changed files with 1 additions and 6 deletions
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2
src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
View file

@ -2049,7 +2049,7 @@ fs_visitor::emit_fb_writes()
fail("Missing support for simd16 depth writes on gen6\n");
}
if (c->computes_depth) {
if (fp->Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {
/* Hand over gl_FragDepth. */
assert(this->frag_depth.file != BAD_FILE);
emit(MOV(fs_reg(MRF, nr), this->frag_depth));

1
src/mesa/drivers/dri/i965/brw_wm.c
View file

@ -160,7 +160,6 @@ brw_wm_payload_setup(struct brw_context *brw,
if (c->fp->program.Base.OutputsWritten &
BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {
c->source_depth_to_render_target = true;
c->computes_depth = true;
}
} else {
brw_wm_lookup_iz(intel, c);

1
src/mesa/drivers/dri/i965/brw_wm.h
View file

@ -89,7 +89,6 @@ struct brw_wm_compile {
uint8_t dest_depth_reg;
uint8_t barycentric_coord_reg[BRW_WM_BARYCENTRIC_INTERP_MODE_COUNT];
uint8_t nr_payload_regs;
GLuint computes_depth:1; /* could be derived from program string */
GLuint source_depth_to_render_target:1;
GLuint runtime_check_aads_emit:1;

3
src/mesa/drivers/dri/i965/brw_wm_iz.c
View file

@ -142,9 +142,6 @@ void brw_wm_lookup_iz(struct intel_context *intel,
kill_stats_promoted_workaround = true;
}
if (lookup & IZ_PS_COMPUTES_DEPTH_BIT)
c->computes_depth = 1;
if (wm_iz_table[lookup].sd_present || uses_depth ||
kill_stats_promoted_workaround) {
c->source_depth_reg = reg;