[v3 PATCH 3/3] wined3d: Use EXT_framebuffer_multisample_blit_scaled extension.

[Paul Gofman]

Signed-off-by: Paul Gofman <gofmanp at gmail.com>
---
v3:
    - introduce d3d_info->scaled_resolve and handle it in texture2d_blt().

 dlls/wined3d/adapter_gl.c      |  4 ++++
 dlls/wined3d/surface.c         | 12 +++++++++---
 dlls/wined3d/wined3d_gl.h      |  1 +
 dlls/wined3d/wined3d_private.h |  1 +
 4 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/dlls/wined3d/adapter_gl.c b/dlls/wined3d/adapter_gl.c
index 6e60c5323e..7b5d121402 100644
--- a/dlls/wined3d/adapter_gl.c
+++ b/dlls/wined3d/adapter_gl.c
@@ -179,6 +179,8 @@ static const struct wined3d_extension_map gl_extension_map[] =
     {"GL_EXT_fog_coord",                    EXT_FOG_COORD                 },
     {"GL_EXT_framebuffer_blit",             EXT_FRAMEBUFFER_BLIT          },
     {"GL_EXT_framebuffer_multisample",      EXT_FRAMEBUFFER_MULTISAMPLE   },
+    {"GL_EXT_framebuffer_multisample_blit_scaled",
+                                   EXT_FRAMEBUFFER_MULTISAMPLE_BLIT_SCALED},
     {"GL_EXT_framebuffer_object",           EXT_FRAMEBUFFER_OBJECT        },
     {"GL_EXT_memory_object",                EXT_MEMORY_OBJECT             },
     {"GL_EXT_gpu_program_parameters",       EXT_GPU_PROGRAM_PARAMETERS    },
@@ -5162,6 +5164,8 @@ static void wined3d_adapter_gl_init_d3d_info(struct wined3d_adapter_gl *adapter_
     d3d_info->srgb_write_control = !!gl_info->supported[ARB_FRAMEBUFFER_SRGB];
     d3d_info->clip_control = !!gl_info->supported[ARB_CLIP_CONTROL];
     d3d_info->full_ffp_varyings = !!(shader_caps.wined3d_caps & WINED3D_SHADER_CAP_FULL_FFP_VARYINGS);
+    d3d_info->scaled_resolve = gl_info->supported[EXT_FRAMEBUFFER_MULTISAMPLE_BLIT_SCALED]
+            || !gl_info->supported[ARB_TEXTURE_MULTISAMPLE];
     d3d_info->feature_level = feature_level_from_caps(gl_info, &shader_caps, &fragment_caps);
 
     if (gl_info->supported[ARB_TEXTURE_MULTISAMPLE])
diff --git a/dlls/wined3d/surface.c b/dlls/wined3d/surface.c
index 8616626162..ed8512240a 100644
--- a/dlls/wined3d/surface.c
+++ b/dlls/wined3d/surface.c
@@ -150,6 +150,7 @@ void texture2d_blt_fbo(struct wined3d_device *device, struct wined3d_context *co
     const struct wined3d_gl_info *gl_info;
     struct wined3d_context_gl *context_gl;
     unsigned int restore_idx;
+    BOOL use_resolve_filter;
     GLenum gl_filter;
     GLenum buffer;
     RECT s, d;
@@ -160,10 +161,14 @@ void texture2d_blt_fbo(struct wined3d_device *device, struct wined3d_context *co
             wined3d_debug_location(src_location), wine_dbgstr_rect(src_rect), dst_texture,
             dst_sub_resource_idx, wined3d_debug_location(dst_location), wine_dbgstr_rect(dst_rect));
 
+    use_resolve_filter = wined3d_texture_gl_is_multisample_location(wined3d_texture_gl(src_texture), src_location)
+            && (abs(src_rect->bottom - src_rect->top) != abs(dst_rect->bottom - dst_rect->top)
+            || abs(src_rect->right - src_rect->left) != abs(dst_rect->right - dst_rect->left));
+
     switch (filter)
     {
         case WINED3D_TEXF_LINEAR:
-            gl_filter = GL_LINEAR;
+            gl_filter = use_resolve_filter ? GL_SCALED_RESOLVE_NICEST_EXT : GL_LINEAR;
             break;
 
         default:
@@ -171,7 +176,7 @@ void texture2d_blt_fbo(struct wined3d_device *device, struct wined3d_context *co
             /* fall through */
         case WINED3D_TEXF_NONE:
         case WINED3D_TEXF_POINT:
-            gl_filter = GL_NEAREST;
+            gl_filter = use_resolve_filter ? GL_SCALED_RESOLVE_FASTEST_EXT : GL_NEAREST;
             break;
     }
 
@@ -2630,7 +2635,8 @@ HRESULT texture2d_blt(struct wined3d_texture *dst_texture, unsigned int dst_sub_
         if (wined3d_texture_is_multisample_location(dst_texture, dst_location))
             dst_location = WINED3D_LOCATION_RB_RESOLVED;
 
-        if (wined3d_texture_is_multisample_location(src_texture, src_location))
+        if ((!context->d3d_info->scaled_resolve || blit_op != WINED3D_BLIT_OP_COLOR_BLIT || convert)
+                && wined3d_texture_is_multisample_location(src_texture, src_location))
             src_location = WINED3D_LOCATION_RB_RESOLVED;
     }
     valid_locations = device->blitter->ops->blitter_blit(device->blitter, blit_op, context,
diff --git a/dlls/wined3d/wined3d_gl.h b/dlls/wined3d/wined3d_gl.h
index 3372b4b6be..2cb25a3776 100644
--- a/dlls/wined3d/wined3d_gl.h
+++ b/dlls/wined3d/wined3d_gl.h
@@ -160,6 +160,7 @@ enum wined3d_gl_extension
     EXT_FOG_COORD,
     EXT_FRAMEBUFFER_BLIT,
     EXT_FRAMEBUFFER_MULTISAMPLE,
+    EXT_FRAMEBUFFER_MULTISAMPLE_BLIT_SCALED,
     EXT_FRAMEBUFFER_OBJECT,
     EXT_GPU_PROGRAM_PARAMETERS,
     EXT_GPU_SHADER4,
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index 3410e06bb9..848996abe0 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -226,6 +226,7 @@ struct wined3d_d3d_info
     uint32_t srgb_write_control : 1;
     uint32_t clip_control : 1;
     uint32_t full_ffp_varyings : 1;
+    uint32_t scaled_resolve : 1;
     enum wined3d_feature_level feature_level;
 
     DWORD multisample_draw_location;
-- 
2.24.1