[PATCH 07/12] wined3d: Invalidate the FFP vertex shader when diffuse/specular attribute presence changes.

[Henri Verbeet]

Debugged by Andy Clayton.

Signed-off-by: Henri Verbeet <hverbeet at codeweavers.com>
---
 dlls/wined3d/glsl_shader.c     | 12 +++++++++++-
 dlls/wined3d/wined3d_private.h |  6 ++++--
 2 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/dlls/wined3d/glsl_shader.c b/dlls/wined3d/glsl_shader.c
index 0c73aba8111..d38ba2bcf06 100644
--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
@@ -11692,6 +11692,8 @@ static void glsl_vertex_pipe_vdecl(struct wined3d_context *context,
         const struct wined3d_state *state, DWORD state_id)
 {
     const struct wined3d_gl_info *gl_info = context->gl_info;
+    BOOL specular = !!(context->stream_info.use_map & (1u << WINED3D_FFP_SPECULAR));
+    BOOL diffuse = !!(context->stream_info.use_map & (1u << WINED3D_FFP_DIFFUSE));
     BOOL normal = !!(context->stream_info.use_map & (1u << WINED3D_FFP_NORMAL));
     const BOOL legacy_clip_planes = needs_legacy_glsl_syntax(gl_info);
     BOOL transformed = context->stream_info.position_transformed;
@@ -11724,8 +11726,14 @@ static void glsl_vertex_pipe_vdecl(struct wined3d_context *context,
 
         /* Because of settings->texcoords, we have to regenerate the vertex
          * shader on a vdecl change if there aren't enough varyings to just
-         * always output all the texture coordinates. */
+         * always output all the texture coordinates.
+         *
+         * Likewise, we have to invalidate the shader when using per-vertex
+         * colours and diffuse/specular attribute presence changes, or when
+         * normal presence changes. */
         if (gl_info->limits.glsl_varyings < wined3d_max_compat_varyings(gl_info)
+                || (state->render_states[WINED3D_RS_COLORVERTEX]
+                && (diffuse != context->last_was_diffuse || specular != context->last_was_specular))
                 || normal != context->last_was_normal)
             context->shader_update_mask |= 1u << WINED3D_SHADER_TYPE_VERTEX;
 
@@ -11748,6 +11756,8 @@ static void glsl_vertex_pipe_vdecl(struct wined3d_context *context,
     }
 
     context->last_was_vshader = use_vs(state);
+    context->last_was_diffuse = diffuse;
+    context->last_was_specular = specular;
     context->last_was_normal = normal;
 }
 
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index 25f7cb2416e..39bb06ad265 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -1879,6 +1879,8 @@ struct wined3d_context
     DWORD last_swizzle_map : 16; /* MAX_ATTRIBS, 16 */
     DWORD last_was_pshader : 1;
     DWORD last_was_vshader : 1;
+    DWORD last_was_diffuse : 1;
+    DWORD last_was_specular : 1;
     DWORD last_was_normal : 1;
     DWORD namedArraysLoaded : 1;
     DWORD last_was_ffp_blit : 1;
@@ -1886,7 +1888,6 @@ struct wined3d_context
     DWORD last_was_ckey : 1;
     DWORD fog_coord : 1;
     DWORD fog_enabled : 1;
-    DWORD num_untracked_materials : 2;  /* Max value 2 */
     DWORD current : 1;
     DWORD destroyed : 1;
     DWORD valid : 1;
@@ -1911,7 +1912,8 @@ struct wined3d_context
     DWORD transform_feedback_paused : 1;
     DWORD shader_update_mask : 6; /* WINED3D_SHADER_TYPE_COUNT, 6 */
     DWORD clip_distance_mask : 8; /* MAX_CLIP_DISTANCES, 8 */
-    DWORD padding : 9;
+    DWORD num_untracked_materials : 2;  /* Max value 2 */
+    DWORD padding : 7;
 
     DWORD constant_update_mask;
     DWORD numbered_array_mask;
-- 
2.11.0