Matteo Bruni : wined3d: Add texture flag for mipmap generation.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 22eabf1db797178ffb2fe3132a96166bd1eb8a1f
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=22eabf1db797178ffb2fe3132a96166bd1eb8a1f

Author: Matteo Bruni <mbruni at codeweavers.com>
Date:   Fri Nov 24 23:30:00 2017 +0100

wined3d: Add texture flag for mipmap generation.

Signed-off-by: Matteo Bruni <mbruni at codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/wined3d/texture.c         | 16 +++++++++++++++-
 dlls/wined3d/wined3d_private.h |  1 +
 include/wine/wined3d.h         |  1 +
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/dlls/wined3d/texture.c b/dlls/wined3d/texture.c
index ef8545d..7a8e1fb 100644
--- a/dlls/wined3d/texture.c
+++ b/dlls/wined3d/texture.c
@@ -384,6 +384,15 @@ static HRESULT wined3d_texture_init(struct wined3d_texture *texture, const struc
         texture->flags |= WINED3D_TEXTURE_GET_DC;
     if (flags & WINED3D_TEXTURE_CREATE_DISCARD)
         texture->flags |= WINED3D_TEXTURE_DISCARD;
+    if (flags & WINED3D_TEXTURE_CREATE_GENERATE_MIPMAPS)
+    {
+        if (~format->flags[WINED3D_GL_RES_TYPE_TEX_2D]
+                & (WINED3DFMT_FLAG_RENDERTARGET | WINED3DFMT_FLAG_FILTERING))
+            WARN("Format doesn't support mipmaps generation, "
+                    "ignoring WINED3D_TEXTURE_CREATE_GENERATE_MIPMAPS flag.\n");
+        else
+            texture->flags |= WINED3D_TEXTURE_GENERATE_MIPMAPS;
+    }
 
     return WINED3D_OK;
 }
@@ -1573,8 +1582,13 @@ BOOL wined3d_texture_prepare_location(struct wined3d_texture *texture, unsigned
 
 void CDECL wined3d_texture_generate_mipmaps(struct wined3d_texture *texture)
 {
-    /* TODO: Implement filters using GL_SGI_generate_mipmaps. */
     FIXME("texture %p stub!\n", texture);
+
+    if (!(texture->flags & WINED3D_TEXTURE_GENERATE_MIPMAPS))
+    {
+        WARN("Texture without the WINED3D_TEXTURE_GENERATE_MIPMAPS flag, ignoring.\n");
+        return;
+    }
 }
 
 static struct wined3d_texture_sub_resource *wined3d_texture_get_sub_resource(struct wined3d_texture *texture,
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index bd4a210..0daa861 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -3074,6 +3074,7 @@ struct wined3d_texture_ops
 #define WINED3D_TEXTURE_DC_IN_USE           0x00001000
 #define WINED3D_TEXTURE_DISCARD             0x00002000
 #define WINED3D_TEXTURE_GET_DC              0x00004000
+#define WINED3D_TEXTURE_GENERATE_MIPMAPS    0x00008000
 
 #define WINED3D_TEXTURE_ASYNC_COLOR_KEY     0x00000001
 
diff --git a/include/wine/wined3d.h b/include/wine/wined3d.h
index f35d980..a0ac7ba 100644
--- a/include/wine/wined3d.h
+++ b/include/wine/wined3d.h
@@ -1538,6 +1538,7 @@ enum wined3d_shader_byte_code_format
 #define WINED3D_TEXTURE_CREATE_DISCARD                          0x00000002
 #define WINED3D_TEXTURE_CREATE_GET_DC_LENIENT                   0x00000004
 #define WINED3D_TEXTURE_CREATE_GET_DC                           0x00000008
+#define WINED3D_TEXTURE_CREATE_GENERATE_MIPMAPS                 0x00000010
 
 #define WINED3D_APPEND_ALIGNED_ELEMENT                          0xffffffff