Mesa (master): i965/gen7: Expose ARB_shader_atomic_counters.

[Ian Romanick]

Module: Mesa
Branch: master
Commit: 597634556e4d24c5a3aec2da227034a733693571
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=597634556e4d24c5a3aec2da227034a733693571

Author: Francisco Jerez <currojerez at riseup.net>
Date:   Sun Oct 20 14:11:27 2013 -0700

i965/gen7: Expose ARB_shader_atomic_counters.

Reviewed-by: Paul Berry <stereotype441 at gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>

---

 src/mesa/drivers/dri/i965/brw_context.c      |   10 ++++++++++
 src/mesa/drivers/dri/i965/intel_extensions.c |    3 +++
 2 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index 34b7931..776d8b3 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -443,6 +443,16 @@ brw_initialize_context_constants(struct brw_context *brw)
    ctx->Const.FragmentProgram.HighInt = ctx->Const.FragmentProgram.LowInt;
    ctx->Const.FragmentProgram.MediumInt = ctx->Const.FragmentProgram.LowInt;
 
+   if (brw->gen >= 7) {
+      ctx->Const.FragmentProgram.MaxAtomicCounters = MAX_ATOMIC_COUNTERS;
+      ctx->Const.VertexProgram.MaxAtomicCounters = MAX_ATOMIC_COUNTERS;
+      ctx->Const.GeometryProgram.MaxAtomicCounters = MAX_ATOMIC_COUNTERS;
+      ctx->Const.FragmentProgram.MaxAtomicBuffers = BRW_MAX_ABO;
+      ctx->Const.VertexProgram.MaxAtomicBuffers = BRW_MAX_ABO;
+      ctx->Const.GeometryProgram.MaxAtomicBuffers = BRW_MAX_ABO;
+      ctx->Const.MaxCombinedAtomicBuffers = 3 * BRW_MAX_ABO;
+   }
+
    /* Gen6 converts quads to polygon in beginning of 3D pipeline,
     * but we're not sure how it's actually done for vertex order,
     * that affect provoking vertex decision. Always use last vertex
diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c b/src/mesa/drivers/dri/i965/intel_extensions.c
index 7b592b5..62c0b15 100644
--- a/src/mesa/drivers/dri/i965/intel_extensions.c
+++ b/src/mesa/drivers/dri/i965/intel_extensions.c
@@ -243,4 +243,7 @@ intelInitExtensions(struct gl_context *ctx)
       ctx->Extensions.EXT_texture_compression_s3tc = true;
 
    ctx->Extensions.ANGLE_texture_compression_dxt = true;
+
+   if (brw->gen >= 7)
+      ctx->Extensions.ARB_shader_atomic_counters = true;
 }