wined3d: Move swapchain buffer discarding to wined3d_cs_exec_present().

dlls/wined3d/cs.c

@@ -522,11 +522,14 @@ static void wined3d_cs_exec_nop(struct wined3d_cs *cs, const void *data)
 static void wined3d_cs_exec_present(struct wined3d_cs *cs, const void *data)
 {
     struct wined3d_texture *logo_texture, *cursor_texture, *back_buffer;
+    struct wined3d_rendertarget_view *dsv = cs->state.fb.depth_stencil;
     const struct wined3d_cs_present *op = data;
+    const struct wined3d_swapchain_desc *desc;
     struct wined3d_swapchain *swapchain;
     unsigned int i;
 
     swapchain = op->swapchain;
+    desc = &swapchain->state.desc;
     back_buffer = swapchain->back_buffers[0];
     wined3d_swapchain_set_window(swapchain, op->dst_window_override);
 
@@ -557,7 +560,7 @@ static void wined3d_cs_exec_present(struct wined3d_cs *cs, const void *data)
 
         TRACE("Rendering the software cursor.\n");
 
-        if (swapchain->state.desc.windowed)
+        if (desc->windowed)
             MapWindowPoints(NULL, swapchain->win_handle, (POINT *)&dst_rect, 2);
         if (wined3d_clip_blit(&clip_rect, &dst_rect, &src_rect))
             wined3d_texture_blt(back_buffer, 0, &dst_rect, cursor_texture, 0,
@@ -566,6 +569,19 @@ static void wined3d_cs_exec_present(struct wined3d_cs *cs, const void *data)
 
     swapchain->swapchain_ops->swapchain_present(swapchain, &op->src_rect, &op->dst_rect, op->swap_interval, op->flags);
 
+    /* Discard buffers if the swap effect allows it. */
+    back_buffer = swapchain->back_buffers[desc->backbuffer_count - 1];
+    if (desc->swap_effect == WINED3D_SWAP_EFFECT_DISCARD || desc->swap_effect == WINED3D_SWAP_EFFECT_FLIP_DISCARD)
+        wined3d_texture_validate_location(back_buffer, 0, WINED3D_LOCATION_DISCARDED);
+
+    if (dsv && dsv->resource->type != WINED3D_RTYPE_BUFFER)
+    {
+        struct wined3d_texture *ds = texture_from_resource(dsv->resource);
+
+        if ((desc->flags & WINED3D_SWAPCHAIN_DISCARD_DEPTHSTENCIL || ds->flags & WINED3D_TEXTURE_DISCARD))
+            wined3d_rendertarget_view_validate_location(dsv, WINED3D_LOCATION_DISCARDED);
+    }
+
     if (TRACE_ON(fps))
     {
         DWORD time = GetTickCount();
@@ -582,7 +598,7 @@ static void wined3d_cs_exec_present(struct wined3d_cs *cs, const void *data)
     }
 
     wined3d_resource_release(&swapchain->front_buffer->resource);
-    for (i = 0; i < swapchain->state.desc.backbuffer_count; ++i)
+    for (i = 0; i < desc->backbuffer_count; ++i)
     {
         wined3d_resource_release(&swapchain->back_buffers[i]->resource);
     }

dlls/wined3d/swapchain.c

@@ -467,8 +467,6 @@ static void swapchain_gl_present(struct wined3d_swapchain *swapchain,
     struct wined3d_swapchain_gl *swapchain_gl = wined3d_swapchain_gl(swapchain);
     const struct wined3d_swapchain_desc *desc = &swapchain->state.desc;
     struct wined3d_texture *back_buffer = swapchain->back_buffers[0];
-    const struct wined3d_fb_state *fb = &swapchain->device->cs->state.fb;
-    struct wined3d_rendertarget_view *dsv = fb->depth_stencil;
     const struct wined3d_gl_info *gl_info;
     struct wined3d_context_gl *context_gl;
     struct wined3d_context *context;
@@ -532,26 +530,6 @@ static void swapchain_gl_present(struct wined3d_swapchain *swapchain,
 
     wined3d_texture_validate_location(swapchain->front_buffer, 0, WINED3D_LOCATION_DRAWABLE);
     wined3d_texture_invalidate_location(swapchain->front_buffer, 0, ~WINED3D_LOCATION_DRAWABLE);
-    /* If the swapeffect is DISCARD, the back buffer is undefined. That means the SYSMEM
-     * and INTEXTURE copies can keep their old content if they have any defined content.
-     * If the swapeffect is COPY, the content remains the same.
-     *
-     * The FLIP swap effect is not implemented yet. We could mark WINED3D_LOCATION_DRAWABLE
-     * up to date and hope WGL flipped front and back buffers and read this data into
-     * the FBO. Don't bother about this for now. */
-    if (desc->swap_effect == WINED3D_SWAP_EFFECT_DISCARD
-            || desc->swap_effect == WINED3D_SWAP_EFFECT_FLIP_DISCARD)
-        wined3d_texture_validate_location(swapchain->back_buffers[desc->backbuffer_count - 1],
-                0, WINED3D_LOCATION_DISCARDED);
-
-    if (dsv && dsv->resource->type != WINED3D_RTYPE_BUFFER)
-    {
-        struct wined3d_texture *ds = texture_from_resource(dsv->resource);
-
-        if ((desc->flags & WINED3D_SWAPCHAIN_DISCARD_DEPTHSTENCIL
-                || ds->flags & WINED3D_TEXTURE_DISCARD))
-            wined3d_texture_validate_location(ds, dsv->sub_resource_idx, WINED3D_LOCATION_DISCARDED);
-    }
 
     context_release(context);
 }