diff options
| author | Ilia Mirkin <imirkin@alum.mit.edu> | 2016-05-29 11:01:05 -0400 |
|---|---|---|
| committer | Ilia Mirkin <imirkin@alum.mit.edu> | 2016-06-06 20:49:28 -0400 |
| commit | 30684b50d71d4d5356b671293af4b9f3fd6161ff (patch) | |
| tree | 8cb3a0c87da9ba19e79d0ec02055c469fc3bce48 | |
| parent | 5189f0243a3dd8698c645bbe762b8a1a3caaf1a9 (diff) | |
| download | external_mesa3d-30684b50d71d4d5356b671293af4b9f3fd6161ff.zip external_mesa3d-30684b50d71d4d5356b671293af4b9f3fd6161ff.tar.gz external_mesa3d-30684b50d71d4d5356b671293af4b9f3fd6161ff.tar.bz2 | |
gallium: add VOTE_* opcodes to implement GL_ARB_shader_group_vote
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_info.c | 3 | ||||
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 17 | ||||
| -rw-r--r-- | src/gallium/include/pipe/p_shader_tokens.h | 7 |
3 files changed, 26 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_info.c b/src/gallium/auxiliary/tgsi/tgsi_info.c index 847d420..60e0f2c 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_info.c +++ b/src/gallium/auxiliary/tgsi/tgsi_info.c @@ -262,6 +262,9 @@ static const struct tgsi_opcode_info opcode_info[TGSI_OPCODE_LAST] = { 1, 1, 0, 0, 0, 0, 0, COMP, "DFLR", TGSI_OPCODE_DFLR }, { 1, 1, 0, 0, 0, 0, 0, COMP, "DROUND", TGSI_OPCODE_DROUND }, { 1, 1, 0, 0, 0, 0, 0, COMP, "DSSG", TGSI_OPCODE_DSSG }, + { 1, 1, 0, 0, 0, 0, 0, COMP, "VOTE_ANY", TGSI_OPCODE_VOTE_ANY }, + { 1, 1, 0, 0, 0, 0, 0, COMP, "VOTE_ALL", TGSI_OPCODE_VOTE_ALL }, + { 1, 1, 0, 0, 0, 0, 0, COMP, "VOTE_EQ", TGSI_OPCODE_VOTE_EQ }, }; const struct tgsi_opcode_info * diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index ab12490..bf09406 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -2557,6 +2557,23 @@ only be used with 32-bit integer image formats. resource[offset] = (dst_x > src_x ? dst_x : src_x) +.. _voteopcodes: + +Vote opcodes +^^^^^^^^^^^^ + +These opcodes compare the given value across the shader invocations +running in the current SIMD group. The details of exactly which +invocations get compared are implementation-defined, and it would be a +correct implementation to only ever consider the current thread's +value. (i.e. SIMD group of 1). The argument is treated as a boolean. + +.. opcode:: VOTE_ANY - Value is set in any of the current invocations + +.. opcode:: VOTE_ALL - Value is set in all of the current invocations + +.. opcode:: VOTE_EQ - Value is the same in all of the current invocations + Explanation of symbols used ------------------------------ diff --git a/src/gallium/include/pipe/p_shader_tokens.h b/src/gallium/include/pipe/p_shader_tokens.h index b9d28fe..abf26d3 100644 --- a/src/gallium/include/pipe/p_shader_tokens.h +++ b/src/gallium/include/pipe/p_shader_tokens.h @@ -561,7 +561,12 @@ struct tgsi_property_data { #define TGSI_OPCODE_DFLR 220 /* nvc0 */ #define TGSI_OPCODE_DROUND 221 /* nvc0 */ #define TGSI_OPCODE_DSSG 222 -#define TGSI_OPCODE_LAST 223 + +#define TGSI_OPCODE_VOTE_ANY 223 +#define TGSI_OPCODE_VOTE_ALL 224 +#define TGSI_OPCODE_VOTE_EQ 225 + +#define TGSI_OPCODE_LAST 226 /** * Opcode is the operation code to execute. A given operation defines the |