[PATCH 1/4] wined3d: Introduce wined3d_stateblock_set_clip_plane().

[Zebediah Figura]

Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
---
 dlls/wined3d/stateblock.c | 16 ++++++++++++++++
 dlls/wined3d/wined3d.spec |  1 +
 include/wine/wined3d.h    |  2 ++
 3 files changed, 19 insertions(+)

diff --git a/dlls/wined3d/stateblock.c b/dlls/wined3d/stateblock.c
index 41c97b5020..98986c735b 100644
--- a/dlls/wined3d/stateblock.c
+++ b/dlls/wined3d/stateblock.c
@@ -1521,6 +1521,22 @@ void CDECL wined3d_stateblock_set_transform(struct wined3d_stateblock *statebloc
     stateblock->changed.transform[d3dts >> 5] |= 1u << (d3dts & 0x1f);
 }
 
+HRESULT CDECL wined3d_stateblock_set_clip_plane(struct wined3d_stateblock *stateblock,
+        UINT plane_idx, const struct wined3d_vec4 *plane)
+{
+    TRACE("stateblock %p, plane_idx %u, plane %p.\n", stateblock, plane_idx, plane);
+
+    if (plane_idx >= stateblock->device->adapter->d3d_info.limits.max_clip_distances)
+    {
+        TRACE("Application has requested clipplane this device doesn't support.\n");
+        return WINED3DERR_INVALIDCALL;
+    }
+
+    stateblock->stateblock_state.clip_planes[plane_idx] = *plane;
+    stateblock->changed.clipplane |= 1u << plane_idx;
+    return S_OK;
+}
+
 static void init_default_render_states(DWORD rs[WINEHIGHEST_RENDER_STATE + 1], const struct wined3d_d3d_info *d3d_info)
 {
     union
diff --git a/dlls/wined3d/wined3d.spec b/dlls/wined3d/wined3d.spec
index 297d3a0410..2b5b6c7667 100644
--- a/dlls/wined3d/wined3d.spec
+++ b/dlls/wined3d/wined3d.spec
@@ -260,6 +260,7 @@
 @ cdecl wined3d_stateblock_incref(ptr)
 @ cdecl wined3d_stateblock_reset(ptr)
 @ cdecl wined3d_stateblock_set_blend_factor(ptr ptr)
+@ cdecl wined3d_stateblock_set_clip_plane(ptr long ptr)
 @ cdecl wined3d_stateblock_set_pixel_shader(ptr ptr)
 @ cdecl wined3d_stateblock_set_ps_consts_b(ptr long long ptr)
 @ cdecl wined3d_stateblock_set_ps_consts_f(ptr long long ptr)
diff --git a/include/wine/wined3d.h b/include/wine/wined3d.h
index 298cb3b270..cedbb09eba 100644
--- a/include/wine/wined3d.h
+++ b/include/wine/wined3d.h
@@ -2663,6 +2663,8 @@ ULONG __cdecl wined3d_stateblock_incref(struct wined3d_stateblock *stateblock);
 void __cdecl wined3d_stateblock_reset(struct wined3d_stateblock *stateblock);
 void __cdecl wined3d_stateblock_set_blend_factor(struct wined3d_stateblock *stateblock,
         const struct wined3d_color *blend_factor);
+HRESULT __cdecl wined3d_stateblock_set_clip_plane(struct wined3d_stateblock *stateblock,
+        UINT plane_idx, const struct wined3d_vec4 *plane);
 void __cdecl wined3d_stateblock_set_pixel_shader(struct wined3d_stateblock *stateblock, struct wined3d_shader *shader);
 HRESULT __cdecl wined3d_stateblock_set_ps_consts_b(struct wined3d_stateblock *stateblock,
         unsigned int start_idx, unsigned int count, const BOOL *constants);
-- 
2.23.0