On Tue, 10 Mar 2020 at 15:01, Paul Gofman gofmanp@gmail.com wrote:
@@ -2629,8 +2622,14 @@ HRESULT texture2d_blt(struct wined3d_texture *dst_texture, unsigned int dst_sub_ dst_location = dst_texture->resource.map_binding;
context = context_acquire(device, dst_texture, dst_sub_resource_idx);
- scale = abs(src_box->right - src_box->left) != abs(dst_box->right - dst_box->left)
|| abs(src_box->bottom - src_box->top) != abs(dst_box->bottom - dst_box->top);
"scale" is already initialised earlier in the function. It's true that this variant would allow flips and mirrors whereas the variant earlier in the texture2d_blt() doesn't, but flipped/mirrored boxes aren't valid for texture2d_blt(). (In particular, wined3d_texture_blt() calls wined3d_texture_check_box_dimensions(); callers would use WINEDDBLTFX_MIRROR* to do flipped/mirrored blits.)
- src_location = (scale || convert || blit_op != WINED3D_BLIT_OP_COLOR_BLIT)
&& wined3d_texture_is_multisample_location(src_texture,src_texture->resource.draw_binding) ? WINED3D_LOCATION_RB_RESOLVED: src_texture->resource.draw_binding;
is the "blit_op" check needed?
+static inline BOOL wined3d_texture_is_multisample_location(const struct wined3d_texture *texture,
DWORD location)+{
- if (location == WINED3D_LOCATION_RB_MULTISAMPLE)
return TRUE;- if (location != WINED3D_LOCATION_TEXTURE_RGB && location != WINED3D_LOCATION_TEXTURE_SRGB)
return FALSE;- return texture->resource.multisample_type != WINED3D_MULTISAMPLE_NONE;
+}
return location == d3d_info->multisample_draw_location && texture->resource.multisample_type != WINED3D_MULTISAMPLE_NONE;
Otherwise, calling the above would give an incorrect result when called with e.g. WINED3D_LOCATION_TEXTURE_RGB on a multisampled texture when ARB_texture_multisample is not used.