i965: add ARB_texture_barrier support

Signed-off-by: Ilia Mirkin <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>

2 files changed, 10 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c b/src/mesa/drivers/dri/i965/intel_extensions.c
index e6d39e00788..1873827cacf 100644
--- a/src/mesa/drivers/dri/i965/intel_extensions.c
+++ b/src/mesa/drivers/dri/i965/intel_extensions.c
@@ -248,6 +248,7 @@ intelInitExtensions(struct gl_context *ctx)
    ctx->Extensions.MESA_pack_invert = true;
    ctx->Extensions.NV_conditional_render = true;
    ctx->Extensions.NV_primitive_restart = true;
+   ctx->Extensions.NV_texture_barrier = true;
    ctx->Extensions.NV_texture_env_combine4 = true;
    ctx->Extensions.NV_texture_rectangle = true;
    ctx->Extensions.TDFX_texture_compression_FXT1 = true;
diff --git a/src/mesa/drivers/dri/i965/intel_tex.c b/src/mesa/drivers/dri/i965/intel_tex.c
index e16b0def0d4..cac33ac64a7 100644
--- a/src/mesa/drivers/dri/i965/intel_tex.c
+++ b/src/mesa/drivers/dri/i965/intel_tex.c
@@ -357,6 +357,14 @@ intel_set_texture_storage_for_buffer_object(struct gl_context *ctx,
    return true;
 }
 
+static void
+intel_texture_barrier(struct gl_context *ctx)
+{
+   struct brw_context *brw = brw_context(ctx);
+
+   brw_emit_mi_flush(brw);
+}
+
 void
 intelInitTextureFuncs(struct dd_function_table *functions)
 {
@@ -372,4 +380,5 @@ intelInitTextureFuncs(struct dd_function_table *functions)
    functions->TextureView = intel_texture_view;
    functions->SetTextureStorageForBufferObject =
       intel_set_texture_storage_for_buffer_object;
+   functions->TextureBarrier = intel_texture_barrier;
 }