diff options
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_ureg.c | 69 |
1 files changed, 61 insertions, 8 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.c b/src/gallium/auxiliary/tgsi/tgsi_ureg.c index 9e2e7f0d19b..654426a903d 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_ureg.c +++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.c @@ -71,6 +71,7 @@ struct ureg_tokens { #define UREG_MAX_INPUT PIPE_MAX_ATTRIBS #define UREG_MAX_OUTPUT PIPE_MAX_ATTRIBS +#define UREG_MAX_CONSTANT_RANGE 32 #define UREG_MAX_IMMEDIATE 32 #define UREG_MAX_TEMP 256 #define UREG_MAX_ADDR 2 @@ -110,9 +111,13 @@ struct ureg_program unsigned temps_active[UREG_MAX_TEMP / 32]; unsigned nr_temps; - unsigned nr_addrs; + struct { + unsigned first; + unsigned last; + } constant_range[UREG_MAX_CONSTANT_RANGE]; + unsigned nr_constant_ranges; - unsigned nr_constants; + unsigned nr_addrs; unsigned nr_instructions; struct ureg_tokens domain[2]; @@ -311,9 +316,54 @@ out: struct ureg_src ureg_DECL_constant(struct ureg_program *ureg, unsigned index ) { - + unsigned minconst = index, maxconst = index; + unsigned i; + + /* Inside existing range? + */ + for (i = 0; i < ureg->nr_constant_ranges; i++) { + if (ureg->constant_range[i].first <= index && + ureg->constant_range[i].last >= index) + goto out; + } + + /* Extend existing range? + */ + for (i = 0; i < ureg->nr_constant_ranges; i++) { + if (ureg->constant_range[i].last == index - 1) { + ureg->constant_range[i].last = index; + goto out; + } - return ureg_src_register( TGSI_FILE_CONSTANT, ureg->nr_constants++ ); + if (ureg->constant_range[i].first == index + 1) { + ureg->constant_range[i].first = index; + goto out; + } + + minconst = MIN2(minconst, ureg->constant_range[i].first); + maxconst = MAX2(maxconst, ureg->constant_range[i].last); + } + + /* Create new range? + */ + if (ureg->nr_constant_ranges < UREG_MAX_CONSTANT_RANGE) { + i = ureg->nr_constant_ranges++; + ureg->constant_range[i].first = index; + ureg->constant_range[i].last = index; + } + + /* Collapse all ranges down to one: + */ + i = 0; + ureg->constant_range[0].first = minconst; + ureg->constant_range[0].last = maxconst; + ureg->nr_constant_ranges = 1; + +out: + assert(i < ureg->nr_constant_ranges); + assert(ureg->constant_range[i].first <= index); + assert(ureg->constant_range[i].last >= index); + return ureg_src_register( TGSI_FILE_CONSTANT, index ); } @@ -859,10 +909,13 @@ static void emit_decls( struct ureg_program *ureg ) ureg->sampler[i].Index, 1 ); } - if (ureg->nr_constants) { - emit_decl_range( ureg, - TGSI_FILE_CONSTANT, - 0, ureg->nr_constants ); + if (ureg->nr_constant_ranges) { + for (i = 0; i < ureg->nr_constant_ranges; i++) + emit_decl_range( ureg, + TGSI_FILE_CONSTANT, + ureg->constant_range[i].first, + (ureg->constant_range[i].last + 1 - + ureg->constant_range[i].first) ); } if (ureg->nr_temps) { |