From: Ilia Mirkin Date: Fri, 11 Sep 2015 01:37:23 +0000 (-0400) Subject: tgsi: add a TXQS opcode to retrieve the number of texture samples X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d173c5e77d239618e9609788e3d23ac9180a58a5;p=mesa.git tgsi: add a TXQS opcode to retrieve the number of texture samples Signed-off-by: Ilia Mirkin Reviewed-by: Roland Scheidegger Reviewed-by: Edward O'Callaghan --- diff --git a/src/gallium/auxiliary/tgsi/tgsi_info.c b/src/gallium/auxiliary/tgsi/tgsi_info.c index fb29ea0d53d..3b40c3de97d 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_info.c +++ b/src/gallium/auxiliary/tgsi/tgsi_info.c @@ -141,7 +141,7 @@ static const struct tgsi_opcode_info opcode_info[TGSI_OPCODE_LAST] = { 0, 0, 0, 1, 1, 0, NONE, "ENDLOOP", TGSI_OPCODE_ENDLOOP }, { 0, 0, 0, 0, 1, 0, NONE, "ENDSUB", TGSI_OPCODE_ENDSUB }, { 1, 1, 1, 0, 0, 0, OTHR, "TXQ_LZ", TGSI_OPCODE_TXQ_LZ }, - { 0, 0, 0, 0, 0, 0, NONE, "", 104 }, /* removed */ + { 1, 1, 1, 0, 0, 0, OTHR, "TXQS", TGSI_OPCODE_TXQS }, { 0, 0, 0, 0, 0, 0, NONE, "", 105 }, /* removed */ { 0, 0, 0, 0, 0, 0, NONE, "", 106 }, /* removed */ { 0, 0, 0, 0, 0, 0, NONE, "NOP", TGSI_OPCODE_NOP }, @@ -331,6 +331,7 @@ tgsi_opcode_infer_type( uint opcode ) case TGSI_OPCODE_SAD: /* XXX some src args may be signed for SAD ? */ case TGSI_OPCODE_TXQ: case TGSI_OPCODE_TXQ_LZ: + case TGSI_OPCODE_TXQS: case TGSI_OPCODE_F2U: case TGSI_OPCODE_UDIV: case TGSI_OPCODE_UMAD: diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 314c9ca8fa2..314fe1bb74f 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -960,7 +960,6 @@ XXX doesn't look like most of the opcodes really belong here. For components which don't return a resource dimension, their value is undefined. - .. math:: lod = src0.x @@ -973,6 +972,17 @@ XXX doesn't look like most of the opcodes really belong here. dst.w = texture\_levels(unit) + +.. opcode:: TXQS - Texture Samples Query + + This retrieves the number of samples in the texture, and stores it + into the x component. The other components are undefined. + +.. math:: + + dst.x = texture\_samples(unit) + + .. opcode:: TG4 - Texture Gather As per ARB_texture_gather, gathers the four texels to be used in a bi-linear diff --git a/src/gallium/include/pipe/p_shader_tokens.h b/src/gallium/include/pipe/p_shader_tokens.h index 6e07b2c5c7c..b36e0a35b8d 100644 --- a/src/gallium/include/pipe/p_shader_tokens.h +++ b/src/gallium/include/pipe/p_shader_tokens.h @@ -402,6 +402,7 @@ struct tgsi_property_data { #define TGSI_OPCODE_ENDLOOP 101 #define TGSI_OPCODE_ENDSUB 102 #define TGSI_OPCODE_TXQ_LZ 103 /* TXQ for mipmap level 0 */ +#define TGSI_OPCODE_TXQS 104 /* gap */ #define TGSI_OPCODE_NOP 107