[Mesa-dev] [PATCH 1/2] gallium: add texture gather support to gallium

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

This just adds the TG4 opcode, and a CAP for the
max texture gather components.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 src/gallium/auxiliary/tgsi/tgsi_info.c     | 1 +
 src/gallium/include/pipe/p_defines.h       | 3 ++-
 src/gallium/include/pipe/p_shader_tokens.h | 4 +++-
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/gallium/auxiliary/tgsi/tgsi_info.c b/src/gallium/auxiliary/tgsi/tgsi_info.c
index f993600..0fa1338 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_info.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_info.c
@@ -221,6 +221,7 @@ static const struct tgsi_opcode_info opcode_info[TGSI_OPCODE_LAST] =
    { 1, 3, 1, 0, 0, 0, OTHR, "TXL2", TGSI_OPCODE_TXL2 },
    { 1, 2, 0, 0, 0, 0, COMP, "IMUL_HI", TGSI_OPCODE_IMUL_HI },
    { 1, 2, 0, 0, 0, 0, COMP, "UMUL_HI", TGSI_OPCODE_UMUL_HI },
+   { 1, 2, 1, 0, 0, 0, OTHR, "TG4", TGSI_OPCODE_TG4 },
 };
 
 const struct tgsi_opcode_info *
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index dbedd87..316aa8b 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -520,7 +520,8 @@ enum pipe_cap {
    PIPE_CAP_MAX_VIEWPORTS = 84,
    PIPE_CAP_ENDIANNESS = 85,
    PIPE_CAP_MIXED_FRAMEBUFFER_SIZES = 86,
-   PIPE_CAP_TGSI_VS_LAYER = 87
+   PIPE_CAP_TGSI_VS_LAYER = 87,
+   PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS = 88
 };
 
 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)
diff --git a/src/gallium/include/pipe/p_shader_tokens.h b/src/gallium/include/pipe/p_shader_tokens.h
index 8750bd2..8fa6a0a 100644
--- a/src/gallium/include/pipe/p_shader_tokens.h
+++ b/src/gallium/include/pipe/p_shader_tokens.h
@@ -453,7 +453,9 @@ struct tgsi_property_data {
 #define TGSI_OPCODE_IMUL_HI             180
 #define TGSI_OPCODE_UMUL_HI             181
 
-#define TGSI_OPCODE_LAST                182
+#define TGSI_OPCODE_TG4                 182
+
+#define TGSI_OPCODE_LAST                183
 
 #define TGSI_SAT_NONE            0  /* do not saturate */
 #define TGSI_SAT_ZERO_ONE        1  /* clamp to [0,1] */
-- 
1.8.3.1