[Mesa-dev] [PATCH 8/8] gallium: add a RESQ opcode to query info about a resource
Ilia Mirkin
imirkin at alum.mit.edu
Sat Jan 2 20:37:40 PST 2016
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---
src/gallium/auxiliary/tgsi/tgsi_info.c | 2 +-
src/gallium/docs/source/tgsi.rst | 12 ++++++++++++
src/gallium/include/pipe/p_shader_tokens.h | 1 +
3 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/src/gallium/auxiliary/tgsi/tgsi_info.c b/src/gallium/auxiliary/tgsi/tgsi_info.c
index 8a0e9c4..bdd4688 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_info.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_info.c
@@ -142,7 +142,7 @@ static const struct tgsi_opcode_info opcode_info[TGSI_OPCODE_LAST] =
{ 0, 0, 0, 0, 0, 1, 0, NONE, "ENDSUB", TGSI_OPCODE_ENDSUB },
{ 1, 1, 1, 0, 0, 0, 0, OTHR, "TXQ_LZ", TGSI_OPCODE_TXQ_LZ },
{ 1, 1, 1, 0, 0, 0, 0, OTHR, "TXQS", TGSI_OPCODE_TXQS },
- { 0, 0, 0, 0, 0, 0, 0, NONE, "", 105 }, /* removed */
+ { 1, 1, 0, 0, 0, 0, 0, NONE, "RESQ", TGSI_OPCODE_RESQ },
{ 0, 0, 0, 0, 0, 0, 0, NONE, "", 106 }, /* removed */
{ 0, 0, 0, 0, 0, 0, 0, NONE, "NOP", TGSI_OPCODE_NOP },
{ 1, 2, 0, 0, 0, 0, 0, COMP, "FSEQ", TGSI_OPCODE_FSEQ },
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst
index a3151e3..f4b8c78 100644
--- a/src/gallium/docs/source/tgsi.rst
+++ b/src/gallium/docs/source/tgsi.rst
@@ -2299,6 +2299,18 @@ Resource Access Opcodes
texture arrays and 2D textures. address.w is always
ignored.
+.. opcode:: RESQ - Query information about a resource
+
+ Syntax: ``RESQ dst, resource``
+
+ Example: ``RESQ TEMP[0], BUFFER[0]``
+
+ Returns information about the buffer or image resource. For buffer
+ resources, the size (in bytes) is returned in the x component. For
+ image resources, .xyz will contain the width/height/layers of the
+ image, while .w will contain the number of samples for multi-sampled
+ images.
+
.. _threadsyncopcodes:
diff --git a/src/gallium/include/pipe/p_shader_tokens.h b/src/gallium/include/pipe/p_shader_tokens.h
index 43a5561..f300207 100644
--- a/src/gallium/include/pipe/p_shader_tokens.h
+++ b/src/gallium/include/pipe/p_shader_tokens.h
@@ -411,6 +411,7 @@ struct tgsi_property_data {
#define TGSI_OPCODE_ENDSUB 102
#define TGSI_OPCODE_TXQ_LZ 103 /* TXQ for mipmap level 0 */
#define TGSI_OPCODE_TXQS 104
+#define TGSI_OPCODE_RESQ 105
/* gap */
#define TGSI_OPCODE_NOP 107
--
2.4.10
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