[Mesa-dev] [PATCH 24/30] r600g: fix up shader out misc stuff for copy shader

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

set the correct values so the misc out register is setup correctly
for the copy shader.

This also updates the state for the gs copy shader so the hw
gets programmed correctly.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 src/gallium/drivers/r600/r600_shader.c       | 10 +++++++++-
 src/gallium/drivers/r600/r600_state_common.c |  7 +++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 0a9f55a..3535a13 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -1162,7 +1162,7 @@ static int generate_gs_copy_shader(struct r600_context *rctx,
 	struct r600_bytecode_output output;
 	struct r600_bytecode_cf *cf_jump, *cf_pop,
 		*last_exp_pos = NULL, *last_exp_param = NULL;
-	int i, next_clip_pos = 62, next_param = 0;
+	int i, next_clip_pos = 61, next_param = 0;
 
 	cshader = calloc(1, sizeof(struct r600_pipe_shader));
 	if (!cshader)
@@ -1263,18 +1263,26 @@ static int generate_gs_copy_shader(struct r600_context *rctx,
 
 		case TGSI_SEMANTIC_PSIZE:
 			output.array_base = 61;
+			if (next_clip_pos == 61)
+				next_clip_pos = 62;
 			output.type = V_SQ_CF_ALLOC_EXPORT_WORD0_SQ_EXPORT_POS;
 			output.swizzle_y = 7;
 			output.swizzle_z = 7;
 			output.swizzle_w = 7;
+			ctx.shader->vs_out_misc_write = 1;
+			ctx.shader->vs_out_point_size = 1;
 			break;
 		case TGSI_SEMANTIC_LAYER:
 			output.array_base = 61;
+			if (next_clip_pos == 61)
+				next_clip_pos = 62;
 			output.type = V_SQ_CF_ALLOC_EXPORT_WORD0_SQ_EXPORT_POS;
 			output.swizzle_x = 7;
 			output.swizzle_y = 7;
 			output.swizzle_z = 0;
 			output.swizzle_w = 7;
+			ctx.shader->vs_out_misc_write = 1;
+			ctx.shader->vs_out_layer = 1;
 			break;
 		case TGSI_SEMANTIC_CLIPDIST:
 			/* spi_sid is 0 for clipdistance outputs that were generated
diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
index f237d26..ffa1eb0 100644
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -1171,6 +1171,13 @@ static bool r600_update_derived_state(struct r600_context *rctx)
 		if (unlikely(rctx->geometry_shader.shader != rctx->gs_shader->current)) {
 			update_shader_atom(ctx, &rctx->geometry_shader, rctx->gs_shader->current);
 			update_shader_atom(ctx, &rctx->vertex_shader, rctx->gs_shader->current->gs_copy_shader);
+			/* Update clip misc state. */
+			if (rctx->gs_shader->current->gs_copy_shader->pa_cl_vs_out_cntl != rctx->clip_misc_state.pa_cl_vs_out_cntl ||
+					rctx->gs_shader->current->gs_copy_shader->shader.clip_dist_write != rctx->clip_misc_state.clip_dist_write) {
+				rctx->clip_misc_state.pa_cl_vs_out_cntl = rctx->gs_shader->current->gs_copy_shader->pa_cl_vs_out_cntl;
+				rctx->clip_misc_state.clip_dist_write = rctx->gs_shader->current->gs_copy_shader->shader.clip_dist_write;
+				rctx->clip_misc_state.atom.dirty = true;
+			}
 		}
 
 		r600_shader_select(ctx, rctx->vs_shader, &vs_dirty);
-- 
1.8.3.1