diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/auxiliary/Makefile | 1 | ||||
| -rw-r--r-- | src/gallium/auxiliary/util/u_linkage.c | 145 | ||||
| -rw-r--r-- | src/gallium/auxiliary/util/u_linkage.h | 65 |
3 files changed, 211 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/Makefile b/src/gallium/auxiliary/Makefile index 287ee8c29f5..a24b0389741 100644 --- a/src/gallium/auxiliary/Makefile +++ b/src/gallium/auxiliary/Makefile @@ -123,6 +123,7 @@ C_SOURCES = \ util/u_hash.c \ util/u_keymap.c \ util/u_linear.c \ + util/u_linkage.c \ util/u_network.c \ util/u_math.c \ util/u_mempool.c \ diff --git a/src/gallium/auxiliary/util/u_linkage.c b/src/gallium/auxiliary/util/u_linkage.c new file mode 100644 index 00000000000..cefcb4c9f1e --- /dev/null +++ b/src/gallium/auxiliary/util/u_linkage.c @@ -0,0 +1,145 @@ +/************************************************************************** + * + * Copyright 2010 Luca Barbieri + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial + * portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "util/u_debug.h" +#include "pipe/p_shader_tokens.h" +#include "tgsi/tgsi_parse.h" +#include "tgsi/tgsi_scan.h" +#include "util/u_linkage.h" + +/* we must only record the registers that are actually used, not just declared */ +static INLINE boolean +util_semantic_set_test_and_set(struct util_semantic_set *set, unsigned value) +{ + unsigned mask = 1 << (value % (sizeof(long) * 8)); + unsigned long *p = &set->masks[value / (sizeof(long) * 8)]; + unsigned long v = *p & mask; + *p |= mask; + return !!v; +} + +unsigned +util_semantic_set_from_program_file(struct util_semantic_set *set, const struct tgsi_token *tokens, enum tgsi_file_type file) +{ + struct tgsi_shader_info info; + struct tgsi_parse_context parse; + unsigned count = 0; + ubyte *semantic_name; + ubyte *semantic_index; + + tgsi_scan_shader(tokens, &info); + + if(file == TGSI_FILE_INPUT) + { + semantic_name = info.input_semantic_name; + semantic_index = info.input_semantic_index; + } + else if(file == TGSI_FILE_OUTPUT) + { + semantic_name = info.output_semantic_name; + semantic_index = info.output_semantic_index; + } + else + assert(0); + + tgsi_parse_init(&parse, tokens); + + memset(set->masks, 0, sizeof(set->masks)); + while(!tgsi_parse_end_of_tokens(&parse)) + { + tgsi_parse_token(&parse); + + if(parse.FullToken.Token.Type == TGSI_TOKEN_TYPE_INSTRUCTION) + { + const struct tgsi_full_instruction *finst = &parse.FullToken.FullInstruction; + unsigned i; + for(i = 0; i < finst->Instruction.NumDstRegs; ++i) + { + if(finst->Dst[i].Register.File == file) + { + unsigned idx = finst->Dst[i].Register.Index; + if(semantic_name[idx] == TGSI_SEMANTIC_GENERIC) + { + if(!util_semantic_set_test_and_set(set, semantic_index[idx])) + ++count; + } + } + } + + for(i = 0; i < finst->Instruction.NumSrcRegs; ++i) + { + if(finst->Src[i].Register.File == file) + { + unsigned idx = finst->Src[i].Register.Index; + if(semantic_name[idx] == TGSI_SEMANTIC_GENERIC) + { + if(!util_semantic_set_test_and_set(set, semantic_index[idx])) + ++count; + } + } + } + } + } + tgsi_parse_free(&parse); + + return count; +} + +#define UTIL_SEMANTIC_SET_FOR_EACH(i, set) for(i = 0; i < 256; ++i) if(set->masks[i / (sizeof(long) * 8)] & (1 << (i % (sizeof(long) * 8)))) + +void +util_semantic_layout_from_set(unsigned char *layout, const struct util_semantic_set *set, unsigned efficient_slots, unsigned num_slots) +{ + int first = -1; + int last = -1; + unsigned i; + + memset(layout, 0xff, num_slots); + + UTIL_SEMANTIC_SET_FOR_EACH(i, set) + { + if(first < 0) + first = i; + last = i; + } + + if(last < efficient_slots) + { + UTIL_SEMANTIC_SET_FOR_EACH(i, set) + layout[i] = i; + } + else if((last - first) < efficient_slots) + { + UTIL_SEMANTIC_SET_FOR_EACH(i, set) + layout[i - first] = i; + } + else + { + unsigned idx = 0; + UTIL_SEMANTIC_SET_FOR_EACH(i, set) + layout[idx++] = i; + } +} diff --git a/src/gallium/auxiliary/util/u_linkage.h b/src/gallium/auxiliary/util/u_linkage.h new file mode 100644 index 00000000000..c30b56e6e47 --- /dev/null +++ b/src/gallium/auxiliary/util/u_linkage.h @@ -0,0 +1,65 @@ +/************************************************************************** + * + * Copyright 2010 Luca Barbieri + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial + * portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef U_LINKAGE_H_ +#define U_LINKAGE_H_ + +#include "pipe/p_compiler.h" +#include "pipe/p_shader_tokens.h" + +struct util_semantic_set +{ + unsigned long masks[256 / 8 / sizeof(unsigned long)]; +}; + +static INLINE bool +util_semantic_set_contains(struct util_semantic_set *set, unsigned char value) +{ + return !!(set->masks[value / (sizeof(long) * 8)] & (1 << (value / (sizeof(long) * 8)))); +} + +unsigned util_semantic_set_from_program_file(struct util_semantic_set *set, const struct tgsi_token *tokens, enum tgsi_file_type file); + +/* efficient_slots is the number of slots such that hardware performance is + * the same for using that amount, with holes, or less slots but with less + * holes. + * + * num_slots is the size of the layout array and hardware limit instead. + * + * efficient_slots == 0 or efficient_solts == num_slots are typical settings. + */ +void util_semantic_layout_from_set(unsigned char *layout, const struct util_semantic_set *set, unsigned efficient_slots, unsigned num_slots); + +static INLINE void +util_semantic_table_from_layout(unsigned char *table, unsigned char *layout, unsigned char first_slot_value, unsigned char num_slots) +{ + memset(table, 0xff, sizeof(table)); + + for(int i = 0; i < num_slots; ++i) + table[layout[i]] = first_slot_value + i; +} + +#endif /* U_LINKAGE_H_ */ |