Taken from radeonsi, required to remove dummy pixel shader in the next patch

Signed-off-by: Constantine Kharlamov <hi-an...@yandex.ru>
Reviewed-by: Marek Olšák <marek.ol...@amd.com>
---
 src/gallium/drivers/r600/evergreen_state.c   | 1 +
 src/gallium/drivers/r600/r600_pipe.h         | 1 +
 src/gallium/drivers/r600/r600_state.c        | 3 ++-
 src/gallium/drivers/r600/r600_state_common.c | 7 ++++++-
 4 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/gallium/drivers/r600/evergreen_state.c 
b/src/gallium/drivers/r600/evergreen_state.c
index 371e7ce212..5697da4af9 100644
--- a/src/gallium/drivers/r600/evergreen_state.c
+++ b/src/gallium/drivers/r600/evergreen_state.c
@@ -471,6 +471,7 @@ static void *evergreen_create_rs_state(struct pipe_context 
*ctx,
        rs->clip_halfz = state->clip_halfz;
        rs->flatshade = state->flatshade;
        rs->sprite_coord_enable = state->sprite_coord_enable;
+       rs->rasterizer_discard = state->rasterizer_discard;
        rs->two_side = state->light_twoside;
        rs->clip_plane_enable = state->clip_plane_enable;
        rs->pa_sc_line_stipple = state->line_stipple_enable ?
diff --git a/src/gallium/drivers/r600/r600_pipe.h 
b/src/gallium/drivers/r600/r600_pipe.h
index 86634b8681..7f1ecc278b 100644
--- a/src/gallium/drivers/r600/r600_pipe.h
+++ b/src/gallium/drivers/r600/r600_pipe.h
@@ -279,6 +279,7 @@ struct r600_rasterizer_state {
        bool                            scissor_enable;
        bool                            multisample_enable;
        bool                            clip_halfz;
+       bool                            rasterizer_discard;
 };
 
 struct r600_poly_offset_state {
diff --git a/src/gallium/drivers/r600/r600_state.c 
b/src/gallium/drivers/r600/r600_state.c
index 1f7e9b3aa5..06100abc4a 100644
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -470,6 +470,7 @@ static void *r600_create_rs_state(struct pipe_context *ctx,
        rs->clip_halfz = state->clip_halfz;
        rs->flatshade = state->flatshade;
        rs->sprite_coord_enable = state->sprite_coord_enable;
+       rs->rasterizer_discard = state->rasterizer_discard;
        rs->two_side = state->light_twoside;
        rs->clip_plane_enable = state->clip_plane_enable;
        rs->pa_sc_line_stipple = state->line_stipple_enable ?
@@ -622,7 +623,7 @@ static void *r600_create_sampler_state(struct pipe_context 
*ctx,
 static struct pipe_sampler_view *
 texture_buffer_sampler_view(struct r600_pipe_sampler_view *view,
                            unsigned width0, unsigned height0)
-                           
+
 {
        struct r600_texture *tmp = (struct r600_texture*)view->base.texture;
        int stride = util_format_get_blocksize(view->base.format);
diff --git a/src/gallium/drivers/r600/r600_state_common.c 
b/src/gallium/drivers/r600/r600_state_common.c
index 922030a1ed..5be49dcdfe 100644
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -1712,7 +1712,12 @@ static void r600_draw_vbo(struct pipe_context *ctx, 
const struct pipe_draw_info
                return;
        }
 
-       if (unlikely(!rctx->vs_shader || !rctx->ps_shader)) {
+       if (unlikely(!rctx->vs_shader)) {
+               assert(0);
+               return;
+       }
+       if (unlikely(!rctx->ps_shader &&
+                    (!rctx->rasterizer || 
!rctx->rasterizer->rasterizer_discard))) {
                assert(0);
                return;
        }
-- 
2.12.2

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