From: Dave Airlie <airlied@redhat.com>
Date: Wed, 29 Jan 2014 00:17:15 +0000 (+0000)
Subject: r600g: fix up shader out misc stuff for copy shader
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7ec5e883f20a7ed88c23a98c4be8d4a4ea06e81e;p=mesa.git

r600g: fix up shader out misc stuff for copy shader

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@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 0a9f55a94a0..3535a134715 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 f237d26c376..ffa1eb0c490 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);