[PATCH 2/2] wined3d: Use EXT_framebuffer_multisample_blit_scaled extension.

[Paul Gofman]

Signed-off-by: Paul Gofman <gofmanp at gmail.com>
---
 dlls/wined3d/adapter_gl.c |  2 ++
 dlls/wined3d/surface.c    | 15 ++++++++++++++-
 dlls/wined3d/wined3d_gl.h |  1 +
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/dlls/wined3d/adapter_gl.c b/dlls/wined3d/adapter_gl.c
index 6e60c5323e..ee091a9b77 100644
--- a/dlls/wined3d/adapter_gl.c
+++ b/dlls/wined3d/adapter_gl.c
@@ -206,6 +206,8 @@ static const struct wined3d_extension_map gl_extension_map[] =
     {"GL_EXT_texture_snorm",                EXT_TEXTURE_SNORM             },
     {"GL_EXT_texture_sRGB",                 EXT_TEXTURE_SRGB              },
     {"GL_EXT_texture_sRGB_decode",          EXT_TEXTURE_SRGB_DECODE       },
+    {"GL_EXT_framebuffer_multisample_blit_scaled",
+                                   EXT_FRAMEBUFFER_MULTISAMPLE_BLIT_SCALED},
     {"GL_EXT_texture_swizzle",              ARB_TEXTURE_SWIZZLE           },
     {"GL_EXT_vertex_array_bgra",            ARB_VERTEX_ARRAY_BGRA         },
 
diff --git a/dlls/wined3d/surface.c b/dlls/wined3d/surface.c
index 6c9f6e46e1..27eeccf04a 100644
--- a/dlls/wined3d/surface.c
+++ b/dlls/wined3d/surface.c
@@ -185,7 +185,20 @@ void texture2d_blt_fbo(struct wined3d_device *device, struct wined3d_context *co
             dst_location = WINED3D_LOCATION_RB_RESOLVED;
 
         if (wined3d_texture_gl_is_multisample_location(wined3d_texture_gl(src_texture), src_location))
-            src_location = WINED3D_LOCATION_RB_RESOLVED;
+        {
+            if (src_texture->resource.format->id == dst_texture->resource.format->id
+                    && wined3d_context_gl(context)->gl_info->supported[EXT_FRAMEBUFFER_MULTISAMPLE_BLIT_SCALED])
+            {
+                if (gl_filter == GL_NEAREST)
+                    gl_filter = GL_SCALED_RESOLVE_FASTEST_EXT;
+                else
+                    gl_filter = GL_SCALED_RESOLVE_NICEST_EXT;
+            }
+            else
+            {
+                src_location = WINED3D_LOCATION_RB_RESOLVED;
+            }
+        }
     }
 
     /* Make sure the locations are up-to-date. Loading the destination
diff --git a/dlls/wined3d/wined3d_gl.h b/dlls/wined3d/wined3d_gl.h
index 3372b4b6be..2d838d7f84 100644
--- a/dlls/wined3d/wined3d_gl.h
+++ b/dlls/wined3d/wined3d_gl.h
@@ -185,6 +185,7 @@ enum wined3d_gl_extension
     EXT_TEXTURE_SNORM,
     EXT_TEXTURE_SRGB,
     EXT_TEXTURE_SRGB_DECODE,
+    EXT_FRAMEBUFFER_MULTISAMPLE_BLIT_SCALED,
     /* NVIDIA */
     NV_FENCE,
     NV_FOG_DISTANCE,
-- 
2.24.1