Signed-off-by: Vadim Girlin <[email protected]>
---

Tested on evergreen, fixes interpolation tests

Two tesselation tests turned to "WARN" - "tessellation polygon flat_first" and 
"tessellation quads flat_first", I think this patch uncovered some other
problem.

 src/gallium/drivers/r600/evergreen_state.c   |   17 +++++++++++------
 src/gallium/drivers/r600/r600_pipe.h         |    1 +
 src/gallium/drivers/r600/r600_state.c        |   21 ++++++++++++---------
 src/gallium/drivers/r600/r600_state_common.c |    5 +++--
 4 files changed, 27 insertions(+), 17 deletions(-)

diff --git a/src/gallium/drivers/r600/evergreen_state.c 
b/src/gallium/drivers/r600/evergreen_state.c
index 6b91bab..b71a9bc 100644
--- a/src/gallium/drivers/r600/evergreen_state.c
+++ b/src/gallium/drivers/r600/evergreen_state.c
@@ -918,7 +918,7 @@ static void *evergreen_create_rs_state(struct pipe_context 
*ctx,
        rstate->id = R600_PIPE_STATE_RASTERIZER;
        if (state->flatshade_first)
                prov_vtx = 0;
-       tmp = S_0286D4_FLAT_SHADE_ENA(state->flatshade);
+       tmp = S_0286D4_FLAT_SHADE_ENA(1);
        if (state->sprite_coord_enable) {
                tmp |= S_0286D4_PNT_SPRITE_ENA(1) |
                        S_0286D4_PNT_SPRITE_OVRD_X(2) |
@@ -994,9 +994,11 @@ static void *evergreen_create_rs_state(struct pipe_context 
*ctx,
        r600_pipe_state_add_reg(rstate, R_02820C_PA_SC_CLIPRECT_RULE, 
clip_rule, 0xFFFFFFFF, NULL, 0);
        r600_pipe_state_add_reg(rstate, R_028810_PA_CL_CLIP_CNTL,
                        S_028810_PS_UCP_MODE(3) | 
S_028810_ZCLIP_NEAR_DISABLE(!state->depth_clip) |
-                       S_028810_ZCLIP_FAR_DISABLE(!state->depth_clip),
-                       S_028810_PS_UCP_MODE(3) | 
S_028810_ZCLIP_NEAR_DISABLE(1) |
-                       S_028810_ZCLIP_FAR_DISABLE(1), NULL, 0);
+                       S_028810_ZCLIP_FAR_DISABLE(!state->depth_clip) |
+                       S_028810_DX_LINEAR_ATTR_CLIP_ENA(1),
+                       ~(C_028810_PS_UCP_MODE & C_028810_ZCLIP_NEAR_DISABLE &
+                       C_028810_ZCLIP_FAR_DISABLE &
+                       C_028810_DX_LINEAR_ATTR_CLIP_ENA), NULL, 0);
        return rstate;
 }
 
@@ -2316,8 +2318,9 @@ void evergreen_pipe_shader_ps(struct pipe_context *ctx, 
struct r600_pipe_shader
                        tmp = S_028644_SEMANTIC(sid);
 
                        if (rshader->input[i].name == TGSI_SEMANTIC_POSITION ||
-                               rshader->input[i].interpolate == 
TGSI_INTERPOLATE_COLOR ||
-                               rshader->input[i].interpolate == 
TGSI_INTERPOLATE_CONSTANT) {
+                               rshader->input[i].interpolate == 
TGSI_INTERPOLATE_CONSTANT ||
+                               (rshader->input[i].interpolate == 
TGSI_INTERPOLATE_COLOR &&
+                                       rctx->rasterizer && 
rctx->rasterizer->flatshade)) {
                                tmp |= S_028644_FLAT_SHADE(1);
                        }
 
@@ -2436,6 +2439,8 @@ void evergreen_pipe_shader_ps(struct pipe_context *ctx, 
struct r600_pipe_shader
                                0xFFFFFFFF, NULL, 0);
 
        shader->sprite_coord_enable = rctx->sprite_coord_enable;
+       if (rctx->rasterizer)
+               shader->flatshade = rctx->rasterizer->flatshade;
 }
 
 void evergreen_pipe_shader_vs(struct pipe_context *ctx, struct 
r600_pipe_shader *shader)
diff --git a/src/gallium/drivers/r600/r600_pipe.h 
b/src/gallium/drivers/r600/r600_pipe.h
index 65e84c1..5403d02 100644
--- a/src/gallium/drivers/r600/r600_pipe.h
+++ b/src/gallium/drivers/r600/r600_pipe.h
@@ -148,6 +148,7 @@ struct r600_pipe_shader {
        struct r600_vertex_element      vertex_elements;
        struct tgsi_token               *tokens;
        unsigned        sprite_coord_enable;
+       unsigned        flatshade;
        struct pipe_stream_output_info  so;
 };
 
diff --git a/src/gallium/drivers/r600/r600_state.c 
b/src/gallium/drivers/r600/r600_state.c
index 8f4e9f2..2ab6659 100644
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -969,7 +969,7 @@ static void *r600_create_rs_state(struct pipe_context *ctx,
        rstate->id = R600_PIPE_STATE_RASTERIZER;
        if (state->flatshade_first)
                prov_vtx = 0;
-       tmp = S_0286D4_FLAT_SHADE_ENA(state->flatshade);
+       tmp = S_0286D4_FLAT_SHADE_ENA(1);
        if (state->sprite_coord_enable) {
                tmp |= S_0286D4_PNT_SPRITE_ENA(1) |
                        S_0286D4_PNT_SPRITE_OVRD_X(2) |
@@ -1037,9 +1037,11 @@ static void *r600_create_rs_state(struct pipe_context 
*ctx,
        r600_pipe_state_add_reg(rstate, R_02820C_PA_SC_CLIPRECT_RULE, 
clip_rule, 0xFFFFFFFF, NULL, 0);
        r600_pipe_state_add_reg(rstate, R_028810_PA_CL_CLIP_CNTL,
                        S_028810_PS_UCP_MODE(3) | 
S_028810_ZCLIP_NEAR_DISABLE(!state->depth_clip) |
-                       S_028810_ZCLIP_FAR_DISABLE(!state->depth_clip),
-                       S_028810_PS_UCP_MODE(3) | 
S_028810_ZCLIP_NEAR_DISABLE(1) |
-                       S_028810_ZCLIP_FAR_DISABLE(1), NULL, 0);
+                       S_028810_ZCLIP_FAR_DISABLE(!state->depth_clip) |
+                       S_028810_DX_LINEAR_ATTR_CLIP_ENA(1),
+                       ~(C_028810_PS_UCP_MODE & C_028810_ZCLIP_NEAR_DISABLE &
+                       C_028810_ZCLIP_FAR_DISABLE &
+                       C_028810_DX_LINEAR_ATTR_CLIP_ENA), NULL, 0);
        return rstate;
 }
 
@@ -2098,11 +2100,10 @@ void r600_pipe_shader_ps(struct pipe_context *ctx, 
struct r600_pipe_shader *shad
 
                tmp = S_028644_SEMANTIC(sid);
 
-               if (rshader->input[i].name == TGSI_SEMANTIC_POSITION) {
-                       tmp |= S_028644_FLAT_SHADE(1);
-               }
-               if (rshader->input[i].interpolate == TGSI_INTERPOLATE_COLOR ||
-                   rshader->input[i].interpolate == TGSI_INTERPOLATE_CONSTANT)
+               if (rshader->input[i].name == TGSI_SEMANTIC_POSITION ||
+                       rshader->input[i].interpolate == 
TGSI_INTERPOLATE_CONSTANT ||
+                       (rshader->input[i].interpolate == 
TGSI_INTERPOLATE_COLOR &&
+                               rctx->rasterizer && 
rctx->rasterizer->flatshade))
                        tmp |= S_028644_FLAT_SHADE(1);
 
                if (rshader->input[i].name == TGSI_SEMANTIC_GENERIC &&
@@ -2205,6 +2206,8 @@ void r600_pipe_shader_ps(struct pipe_context *ctx, struct 
r600_pipe_shader *shad
                                0xFFFFFFFF, NULL, 0);
 
        shader->sprite_coord_enable = rctx->sprite_coord_enable;
+       if (rctx->rasterizer)
+               shader->flatshade = rctx->rasterizer->flatshade;
 }
 
 void r600_pipe_shader_vs(struct pipe_context *ctx, struct r600_pipe_shader 
*shader)
diff --git a/src/gallium/drivers/r600/r600_state_common.c 
b/src/gallium/drivers/r600/r600_state_common.c
index 6a31309..bb39858 100644
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -603,8 +603,9 @@ static void r600_update_derived_state(struct 
r600_pipe_context *rctx)
                r600_update_alpha_ref(rctx);
        }
 
-       if (rctx->ps_shader && rctx->sprite_coord_enable &&
-               (rctx->ps_shader->sprite_coord_enable != 
rctx->sprite_coord_enable)) {
+       if (rctx->ps_shader && ((rctx->sprite_coord_enable &&
+               (rctx->ps_shader->sprite_coord_enable != 
rctx->sprite_coord_enable)) ||
+               (rctx->rasterizer && rctx->rasterizer->flatshade != 
rctx->ps_shader->flatshade))) {
 
                if (rctx->chip_class >= EVERGREEN)
                        evergreen_pipe_shader_ps(ctx, rctx->ps_shader);
-- 
1.7.7.6

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