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authorDave Airlie <[email protected]>2013-09-21 18:45:43 +1000
committerDave Airlie <[email protected]>2014-02-25 13:29:17 +1000
commit2fcbec48d78af2cd03138feb83e63e439a4b6a60 (patch)
tree3d6a39c65d50b4aa5953fae347838d2294e3e71d /src/gallium/drivers/ilo
parent122c3b9486d3dbf8cb6b796c9a25f43817f006d3 (diff)
gallium: add texture gather support to gallium (v3)
This adds support to gallium for a TG4 instruction, and two CAPs. The first CAP is required for GL_ARB_texture_gather. The second CAP is required to expose GL_ARB_gpu_shader5. However so far we haven't found any hardware that natively exposes the textureGatherOffsets feature from GL, so just lower it for now. If hardware appears for this we can add another CAP to allow TG4 to take 4 offsets. v2: add component selection src and a cap to say hw can do it. (st can use to help control GL_ARB_gpu_shader5/GLSL 4.00). Add docs. v3: rename to SM5, add docs. Reviewed-by: Roland Scheidegger <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
Diffstat (limited to 'src/gallium/drivers/ilo')
-rw-r--r--src/gallium/drivers/ilo/ilo_screen.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/gallium/drivers/ilo/ilo_screen.c b/src/gallium/drivers/ilo/ilo_screen.c
index 9c363acb4f7..255166431ac 100644
--- a/src/gallium/drivers/ilo/ilo_screen.c
+++ b/src/gallium/drivers/ilo/ilo_screen.c
@@ -433,6 +433,8 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
return true;
case PIPE_CAP_TGSI_VS_LAYER:
+ case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
+ case PIPE_CAP_TEXTURE_GATHER_SM5:
return 0;
default: