[Mesa-dev] [PATCH 12/26] i965: Add tessellation shader sampler support.

[Kenneth Graunke]

Based on code by Chris Forbes and Fabian Bieler.

Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
---
 src/mesa/drivers/dri/i965/brw_context.h       |  2 +-
 src/mesa/drivers/dri/i965/brw_sampler_state.c | 46 +++++++++++++++++++++++++++
 src/mesa/drivers/dri/i965/brw_state.h         |  2 ++
 src/mesa/drivers/dri/i965/brw_state_upload.c  |  2 ++
 4 files changed, 51 insertions(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index 8de0e6f..c440c7d 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -1228,7 +1228,7 @@ struct brw_context
    } perfmon;
 
    int num_atoms[BRW_NUM_PIPELINES];
-   const struct brw_tracked_state render_atoms[71];
+   const struct brw_tracked_state render_atoms[73];
    const struct brw_tracked_state compute_atoms[9];
 
    /* If (INTEL_DEBUG & DEBUG_BATCH) */
diff --git a/src/mesa/drivers/dri/i965/brw_sampler_state.c b/src/mesa/drivers/dri/i965/brw_sampler_state.c
index 6d73444..3f29e2f 100644
--- a/src/mesa/drivers/dri/i965/brw_sampler_state.c
+++ b/src/mesa/drivers/dri/i965/brw_sampler_state.c
@@ -55,6 +55,8 @@ gen7_emit_sampler_state_pointers_xs(struct brw_context *brw,
 {
    static const uint16_t packet_headers[] = {
       [MESA_SHADER_VERTEX] = _3DSTATE_SAMPLER_STATE_POINTERS_VS,
+      [MESA_SHADER_TESS_CTRL] = _3DSTATE_SAMPLER_STATE_POINTERS_HS,
+      [MESA_SHADER_TESS_EVAL] = _3DSTATE_SAMPLER_STATE_POINTERS_DS,
       [MESA_SHADER_GEOMETRY] = _3DSTATE_SAMPLER_STATE_POINTERS_GS,
       [MESA_SHADER_FRAGMENT] = _3DSTATE_SAMPLER_STATE_POINTERS_PS,
    };
@@ -647,3 +649,47 @@ const struct brw_tracked_state brw_gs_samplers = {
    },
    .emit = brw_upload_gs_samplers,
 };
+
+
+static void
+brw_upload_tcs_samplers(struct brw_context *brw)
+{
+   /* BRW_NEW_TESS_CTRL_PROGRAM */
+   struct gl_program *tcs = (struct gl_program *) brw->tess_ctrl_program;
+   if (!tcs)
+      return;
+
+   brw_upload_sampler_state_table(brw, tcs, &brw->tcs.base);
+}
+
+
+const struct brw_tracked_state brw_tcs_samplers = {
+   .dirty = {
+      .mesa = _NEW_TEXTURE,
+      .brw = BRW_NEW_BATCH |
+             BRW_NEW_TESS_CTRL_PROGRAM,
+   },
+   .emit = brw_upload_tcs_samplers,
+};
+
+
+static void
+brw_upload_tes_samplers(struct brw_context *brw)
+{
+   /* BRW_NEW_TESS_EVAL_PROGRAM */
+   struct gl_program *tes = (struct gl_program *) brw->tess_eval_program;
+   if (!tes)
+      return;
+
+   brw_upload_sampler_state_table(brw, tes, &brw->tes.base);
+}
+
+
+const struct brw_tracked_state brw_tes_samplers = {
+   .dirty = {
+      .mesa = _NEW_TEXTURE,
+      .brw = BRW_NEW_BATCH |
+             BRW_NEW_TESS_EVAL_PROGRAM,
+   },
+   .emit = brw_upload_tes_samplers,
+};
diff --git a/src/mesa/drivers/dri/i965/brw_state.h b/src/mesa/drivers/dri/i965/brw_state.h
index 129de30..a332b92 100644
--- a/src/mesa/drivers/dri/i965/brw_state.h
+++ b/src/mesa/drivers/dri/i965/brw_state.h
@@ -72,6 +72,8 @@ extern const struct brw_tracked_state brw_state_base_address;
 extern const struct brw_tracked_state brw_urb_fence;
 extern const struct brw_tracked_state brw_vs_prog;
 extern const struct brw_tracked_state brw_vs_samplers;
+extern const struct brw_tracked_state brw_tcs_samplers;
+extern const struct brw_tracked_state brw_tes_samplers;
 extern const struct brw_tracked_state brw_gs_samplers;
 extern const struct brw_tracked_state brw_vs_ubo_surfaces;
 extern const struct brw_tracked_state brw_vs_abo_surfaces;
diff --git a/src/mesa/drivers/dri/i965/brw_state_upload.c b/src/mesa/drivers/dri/i965/brw_state_upload.c
index ba66886..e61fa6a 100644
--- a/src/mesa/drivers/dri/i965/brw_state_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_state_upload.c
@@ -322,6 +322,8 @@ static const struct brw_tracked_state *gen8_render_atoms[] =
 
    &brw_fs_samplers,
    &brw_vs_samplers,
+   &brw_tcs_samplers,
+   &brw_tes_samplers,
    &brw_gs_samplers,
    &gen8_multisample_state,
 
-- 
2.6.2