Mesa (master): i965/msaa: Switch on 8x MSAA for Gen7.

[Paul Berry]

Module: Mesa
Branch: master
Commit: 497bf5dd2b36c7d0c8ae23d2bf039c91b97140fc
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=497bf5dd2b36c7d0c8ae23d2bf039c91b97140fc

Author: Paul Berry <stereotype441 at gmail.com>
Date:   Tue Jul 17 21:06:01 2012 -0700

i965/msaa: Switch on 8x MSAA for Gen7.

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/drivers/dri/i965/brw_context.c |    4 +++-
 src/mesa/drivers/dri/intel/intel_fbo.c  |    6 ++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index 62b28be..faca726 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -154,8 +154,10 @@ brwCreateContext(int api,
    ctx->Const.MaxTransformFeedbackSeparateComponents =
       BRW_MAX_SOL_BINDINGS / BRW_MAX_SOL_BUFFERS;
 
-   if (intel->gen >= 6)
+   if (intel->gen == 6)
       ctx->Const.MaxSamples = 4;
+   else if (intel->gen >= 7)
+      ctx->Const.MaxSamples = 8;
 
    /* if conformance mode is set, swrast can handle any size AA point */
    ctx->Const.MaxPointSizeAA = 255.0;
diff --git a/src/mesa/drivers/dri/intel/intel_fbo.c b/src/mesa/drivers/dri/intel/intel_fbo.c
index db4fb3b..ac7d6c1 100644
--- a/src/mesa/drivers/dri/intel/intel_fbo.c
+++ b/src/mesa/drivers/dri/intel/intel_fbo.c
@@ -193,8 +193,10 @@ quantize_num_samples(struct intel_context *intel, unsigned num_samples)
       else
          return 0;
    case 7:
-      /* TODO: Gen7 supports only 4x multisampling at the moment. */
-      if (num_samples > 0)
+      /* Gen7 supports 4x and 8x multisampling. */
+      if (num_samples > 4)
+         return 8;
+      else if (num_samples > 0)
          return 4;
       else
          return 0;