5 files changed, 24 insertions, 18 deletions

diff --git a/src/gallium/drivers/svga/svga_context.h b/src/gallium/drivers/svga/svga_context.h
index fa7f6cb3bb9..66259fd0103 100644
--- a/src/gallium/drivers/svga/svga_context.h
+++ b/src/gallium/drivers/svga/svga_context.h
@@ -266,8 +266,6 @@ struct svga_hw_draw_state
    unsigned ts[16][TS_MAX];
    float cb[PIPE_SHADER_TYPES][CB_MAX][4];
 
-   unsigned shader_id[PIPE_SHADER_TYPES];
-   
    struct svga_shader_result *fs;
    struct svga_shader_result *vs;
    struct svga_hw_view_state views[PIPE_MAX_SAMPLERS];
diff --git a/src/gallium/drivers/svga/svga_pipe_fs.c b/src/gallium/drivers/svga/svga_pipe_fs.c
index a461a86dd31..5f1213e46a3 100644
--- a/src/gallium/drivers/svga/svga_pipe_fs.c
+++ b/src/gallium/drivers/svga/svga_pipe_fs.c
@@ -111,6 +111,13 @@ void svga_delete_fs_state(struct pipe_context *pipe, void *shader)
       util_bitmask_clear( svga->fs_bm, result->id );
 
       svga_destroy_shader_result( result );
+
+      /*
+       * Remove stale references to this result to ensure a new result on the
+       * same address will be detected as a change.
+       */
+      if(result == svga->state.hw_draw.fs)
+         svga->state.hw_draw.fs = NULL;
    }
 
    FREE((void *)fs->base.tokens);
diff --git a/src/gallium/drivers/svga/svga_pipe_vs.c b/src/gallium/drivers/svga/svga_pipe_vs.c
index e82d10c2595..7e6ab576add 100644
--- a/src/gallium/drivers/svga/svga_pipe_vs.c
+++ b/src/gallium/drivers/svga/svga_pipe_vs.c
@@ -176,6 +176,13 @@ static void svga_delete_vs_state(struct pipe_context *pipe, void *shader)
       util_bitmask_clear( svga->vs_bm, result->id );
 
       svga_destroy_shader_result( result );
+
+      /*
+       * Remove stale references to this result to ensure a new result on the
+       * same address will be detected as a change.
+       */
+      if(result == svga->state.hw_draw.vs)
+         svga->state.hw_draw.vs = NULL;
    }
 
    FREE((void *)vs->base.tokens);
diff --git a/src/gallium/drivers/svga/svga_state_fs.c b/src/gallium/drivers/svga/svga_state_fs.c
index 1902b0106ba..272d1dd14e3 100644
--- a/src/gallium/drivers/svga/svga_state_fs.c
+++ b/src/gallium/drivers/svga/svga_state_fs.c
@@ -268,16 +268,13 @@ static int emit_hw_fs( struct svga_context *svga,
    assert(id != SVGA3D_INVALID_ID);
 
    if (result != svga->state.hw_draw.fs) {
-      if (id != svga->state.hw_draw.shader_id[PIPE_SHADER_FRAGMENT]) {
-         ret = SVGA3D_SetShader(svga->swc,
-                                SVGA3D_SHADERTYPE_PS,
-                                id );
-         if (ret)
-            return ret;
-      }
+      ret = SVGA3D_SetShader(svga->swc,
+                             SVGA3D_SHADERTYPE_PS,
+                             id );
+      if (ret)
+         return ret;
 
       svga->dirty |= SVGA_NEW_FS_RESULT;
-      svga->state.hw_draw.shader_id[PIPE_SHADER_FRAGMENT] = id;
       svga->state.hw_draw.fs = result;      
    }
 
diff --git a/src/gallium/drivers/svga/svga_state_vs.c b/src/gallium/drivers/svga/svga_state_vs.c
index 7e34c0a9804..ae1e77e7d44 100644
--- a/src/gallium/drivers/svga/svga_state_vs.c
+++ b/src/gallium/drivers/svga/svga_state_vs.c
@@ -150,16 +150,13 @@ static int emit_hw_vs( struct svga_context *svga,
    }
 
    if (result != svga->state.hw_draw.vs) {
-      if (id != svga->state.hw_draw.shader_id[PIPE_SHADER_VERTEX]) {
-         ret = SVGA3D_SetShader(svga->swc,
-                                SVGA3D_SHADERTYPE_VS,
-                                id );
-         if (ret)
-            return ret;
-      }
+      ret = SVGA3D_SetShader(svga->swc,
+                             SVGA3D_SHADERTYPE_VS,
+                             id );
+      if (ret)
+         return ret;
 
       svga->dirty |= SVGA_NEW_VS_RESULT;
-      svga->state.hw_draw.shader_id[PIPE_SHADER_VERTEX] = id;
       svga->state.hw_draw.vs = result;      
    }