[Mesa-dev] [PATCH 5/5] i965: Enable ARB_texture_gather for one component on Gen6.

[Chris Forbes]

Signed-off-by: Chris Forbes <chrisf at ijw.co.nz>
---
 src/mesa/drivers/dri/i965/brw_context.c      | 2 ++
 src/mesa/drivers/dri/i965/intel_extensions.c | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index d9d1ae5..b140d3d 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -367,6 +367,8 @@ brw_initialize_context_constants(struct brw_context *brw)
 
    if (brw->gen >= 7)
       ctx->Const.MaxProgramTextureGatherComponents = 4;
+   else if (brw->gen == 6)
+      ctx->Const.MaxProgramTextureGatherComponents = 1;
 
    ctx->Const.MinLineWidth = 1.0;
    ctx->Const.MinLineWidthAA = 1.0;
diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c b/src/mesa/drivers/dri/i965/intel_extensions.c
index 2b5ed0b..5fd6ec2 100644
--- a/src/mesa/drivers/dri/i965/intel_extensions.c
+++ b/src/mesa/drivers/dri/i965/intel_extensions.c
@@ -270,6 +270,7 @@ intelInitExtensions(struct gl_context *ctx)
       ctx->Extensions.ARB_texture_multisample = true;
       ctx->Extensions.ARB_sample_shading = true;
       ctx->Extensions.ARB_vertex_type_10f_11f_11f_rev = true;
+      ctx->Extensions.ARB_texture_gather = true;
 
       /* Test if the kernel has the ioctl. */
       if (drm_intel_reg_read(brw->bufmgr, TIMESTAMP, &dummy) == 0)
@@ -284,7 +285,6 @@ intelInitExtensions(struct gl_context *ctx)
    }
 
    if (brw->gen >= 7) {
-      ctx->Extensions.ARB_texture_gather = true;
       ctx->Extensions.ARB_conservative_depth = true;
       ctx->Extensions.AMD_vertex_shader_layer = true;
       if (can_do_pipelined_register_writes(brw)) {
-- 
1.8.5.3