Mesa (master): i965: Enable ARB_texture_gather on Gen7

[Chris Forbes]

Module: Mesa
Branch: master
Commit: 7df985ad47df831f842843f2db9f7658b11d3df2
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=7df985ad47df831f842843f2db9f7658b11d3df2

Author: Chris Forbes <chrisf at ijw.co.nz>
Date:   Sun Mar 24 20:18:55 2013 +1300

i965: Enable ARB_texture_gather on Gen7

Signed-off-by: Chris Forbes <chrisf at ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/drivers/dri/i965/brw_context.c      |    1 +
 src/mesa/drivers/dri/i965/intel_extensions.c |    4 ++++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index 18b8e57..776d221 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -176,6 +176,7 @@ brw_initialize_context_constants(struct brw_context *brw)
       ctx->Const.MaxColorTextureSamples = 8;
       ctx->Const.MaxDepthTextureSamples = 8;
       ctx->Const.MaxIntegerSamples = 8;
+      ctx->Const.MaxProgramTextureGatherComponents = 4;
    }
 
    ctx->Const.MinLineWidth = 1.0;
diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c b/src/mesa/drivers/dri/i965/intel_extensions.c
index 0fc5aad..0502a48 100644
--- a/src/mesa/drivers/dri/i965/intel_extensions.c
+++ b/src/mesa/drivers/dri/i965/intel_extensions.c
@@ -163,6 +163,10 @@ intelInitExtensions(struct gl_context *ctx)
    if (brw->gen == 5)
       ctx->Extensions.AMD_performance_monitor = true;
 
+   if (brw->gen >= 7) {
+      ctx->Extensions.ARB_texture_gather = true;
+   }
+
    if (ctx->API == API_OPENGL_CORE)
       ctx->Extensions.ARB_base_instance = true;
    if (ctx->API != API_OPENGL_CORE)