wined3d: Add support for the NULL format.

dlls/wined3d/context.c

@@ -271,7 +271,7 @@ static void context_attach_surface_fbo(const struct wined3d_context *context,
 
     TRACE("Attach surface %p to %u\n", surface, idx);
 
-    if (surface)
+    if (surface && surface->resource.format->id != WINED3DFMT_NULL)
     {
         switch (location)
         {
@@ -1932,7 +1932,7 @@ static void context_apply_draw_buffers(struct wined3d_context *context, UINT rt_
 
             for (i = 0; i < gl_info->limits.buffers; ++i)
             {
-                if (i < rt_count && rts[i])
+                if (i < rt_count && rts[i] && rts[i]->resource.format->id != WINED3DFMT_NULL)
                     context->draw_buffers[i] = GL_COLOR_ATTACHMENT0 + i;
                 else
                     context->draw_buffers[i] = GL_NONE;
@@ -2062,7 +2062,8 @@ static BOOL context_validate_rt_config(UINT rt_count,
 
     for (i = 0; i < rt_count; ++i)
     {
-        if (rts[i]) return TRUE;
+        if (rts[i] && rts[i]->resource.format->id != WINED3DFMT_NULL)
+            return TRUE;
     }
 
     WARN("Invalid render target config, need at least one attachment.\n");

dlls/wined3d/directx.c

@@ -3470,6 +3470,11 @@ static BOOL CheckTextureCapability(struct wined3d_adapter *adapter, const struct
             TRACE_(d3d_caps)("[FAILED]\n");
             return FALSE;
 
+        case WINED3DFMT_NULL:
+            if (gl_info->supported[ARB_FRAMEBUFFER_OBJECT])
+                return TRUE;
+            return FALSE;
+
         case WINED3DFMT_UNKNOWN:
             return FALSE;
 

dlls/wined3d/utils.c

@@ -133,6 +133,7 @@ static const struct StaticPixelFormatDesc formats[] =
     {WINED3DFMT_INTZ,                       0x0,        0x0,        0x0,        0x0,        4,      24,     8},
     {WINED3DFMT_NVHU,                       0x0,        0x0,        0x0,        0x0,        2,      0,      0},
     {WINED3DFMT_NVHS,                       0x0,        0x0,        0x0,        0x0,        2,      0,      0},
+    {WINED3DFMT_NULL,                       0xff000000, 0x000000ff, 0x0000ff00, 0x00ff0000, 4,      0,      0},
 };
 
 struct wined3d_format_base_flags
@@ -158,6 +159,7 @@ static const struct wined3d_format_base_flags format_base_flags[] =
     {WINED3DFMT_G8R8_G8B8,          WINED3DFMT_FLAG_FOURCC},
     {WINED3DFMT_R8G8_B8G8,          WINED3DFMT_FLAG_FOURCC},
     {WINED3DFMT_INTZ,               WINED3DFMT_FLAG_FOURCC},
+    {WINED3DFMT_NULL,               WINED3DFMT_FLAG_FOURCC},
     {WINED3DFMT_P8_UINT,            WINED3DFMT_FLAG_GETDC},
     {WINED3DFMT_B8G8R8_UNORM,       WINED3DFMT_FLAG_GETDC},
     {WINED3DFMT_B8G8R8A8_UNORM,     WINED3DFMT_FLAG_GETDC},
@@ -868,6 +870,10 @@ static const struct wined3d_format_texture_info format_texture_info[] =
             WINED3DFMT_FLAG_POSTPIXELSHADER_BLENDING | WINED3DFMT_FLAG_FILTERING | WINED3DFMT_FLAG_DEPTH
             | WINED3DFMT_FLAG_STENCIL,
             ARB_FRAMEBUFFER_OBJECT,     NULL},
+    {WINED3DFMT_NULL,                   GL_RGBA8,                         GL_RGBA8,                               0,
+            GL_RGBA,                    GL_UNSIGNED_INT_8_8_8_8_REV,      0,
+            WINED3DFMT_FLAG_RENDERTARGET,
+            ARB_FRAMEBUFFER_OBJECT,     NULL},
 };
 
 static inline int getFmtIdx(enum wined3d_format_id format_id)
@@ -1740,6 +1746,7 @@ const char *debug_d3dformat(enum wined3d_format_id format_id)
         FMT_TO_STR(WINED3DFMT_B8G8R8A8_UNORM);
         FMT_TO_STR(WINED3DFMT_B8G8R8X8_UNORM);
         FMT_TO_STR(WINED3DFMT_INTZ);
+        FMT_TO_STR(WINED3DFMT_NULL);
 #undef FMT_TO_STR
         default:
         {

include/wine/wined3d.idl

@@ -275,6 +275,7 @@ enum wined3d_format_id
     WINED3DFMT_NVHU                         = WINEMAKEFOURCC('N','V','H','U'),
     WINED3DFMT_NVHS                         = WINEMAKEFOURCC('N','V','H','S'),
     WINED3DFMT_INTZ                         = WINEMAKEFOURCC('I','N','T','Z'),
+    WINED3DFMT_NULL                         = WINEMAKEFOURCC('N','U','L','L'),
 
     WINED3DFMT_FORCE_DWORD = 0xffffffff
 };