svga: Rebind shaders when tokens change.

Even shader ID doesn't change. Otherwise the token change is not
effective.

This reverts regression from commit
cdb445f3a9285e2d8f042a07021ade78b94e0156. Regression could be seen in
Quake3's loading screen -- the upper right corner of the screen would
be black.

3 files changed, 10 insertions, 18 deletions

diff --git a/src/gallium/drivers/svga/svga_context.h b/src/gallium/drivers/svga/svga_context.h
index eb666c2616..32e9304f81 100644
--- a/src/gallium/drivers/svga/svga_context.h
+++ b/src/gallium/drivers/svga/svga_context.h
@@ -268,8 +268,6 @@ 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_state_fs.c b/src/gallium/drivers/svga/svga_state_fs.c
index 1902b0106b..272d1dd14e 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 6cf51434d7..db30f2735f 100644
--- a/src/gallium/drivers/svga/svga_state_vs.c
+++ b/src/gallium/drivers/svga/svga_state_vs.c
@@ -149,16 +149,13 @@ 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;      
    }