Matteo Bruni : wined3d: Allow FFP blits to non-render targets with the 'none' shader backend.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 1eba5fd9591c9c0f70ca3c9aa39c46bcf0848cbd
URL:    https://gitlab.winehq.org/wine/wine/-/commit/1eba5fd9591c9c0f70ca3c9aa39c46b...

Author: Matteo Bruni 
Date:   Wed Sep 13 11:04:18 2023 +0200

wined3d: Allow FFP blits to non-render targets with the 'none' shader backend.

In the same vein as 6247bee483b31b1ea0ad49f85f1cffde7433fed2; avoids
infinite recursion in the blitter. Triggered by the ddraw tests.

---

dlls/wined3d/texture.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/dlls/wined3d/texture.c b/dlls/wined3d/texture.c
index 08e95db10f5..a7fbde0f529 100644
--- a/dlls/wined3d/texture.c
+++ b/dlls/wined3d/texture.c
@@ -5832,8 +5832,17 @@ static bool ffp_blit_supported(enum wined3d_blit_op blit_op, const struct wined3

if (!(dst_resource->bind_flags & WINED3D_BIND_RENDER_TARGET))
             {
-                TRACE("Can only blit to render targets.\n");
-                return false;
+                if (dst_format->id == src_format->id && dst_location == WINED3D_LOCATION_DRAWABLE)
+                {
+                    if (context->device->shader_backend == &none_shader_backend)
+                        WARN("Claiming !render_target support because of no shader backend.\n");
+                    return true;
+                }
+                else
+                {
+                    TRACE("Can only blit to render targets.\n");
+                    return false;
+                }
             }
             return true;