Example #1
0
static HRESULT swapchain_gl_present(struct wined3d_swapchain *swapchain, const RECT *src_rect_in,
        const RECT *dst_rect_in, const RGNDATA *dirty_region, DWORD flags)
{
    struct wined3d_surface *back_buffer = swapchain->back_buffers[0];
    const struct wined3d_fb_state *fb = &swapchain->device->fb;
    const struct wined3d_gl_info *gl_info;
    struct wined3d_context *context;
    RECT src_rect, dst_rect;
    BOOL render_to_fbo;

    context = context_acquire(swapchain->device, back_buffer);
    if (!context->valid)
    {
        context_release(context);
        WARN("Invalid context, skipping present.\n");
        return WINED3D_OK;
    }

    gl_info = context->gl_info;

    /* Render the cursor onto the back buffer, using our nifty directdraw blitting code :-) */
    if (swapchain->device->bCursorVisible &&
        swapchain->device->cursorTexture &&
        !swapchain->device->hardwareCursor)
    {
        struct wined3d_surface cursor;
        RECT destRect =
        {
            swapchain->device->xScreenSpace - swapchain->device->xHotSpot,
            swapchain->device->yScreenSpace - swapchain->device->yHotSpot,
            swapchain->device->xScreenSpace + swapchain->device->cursorWidth - swapchain->device->xHotSpot,
            swapchain->device->yScreenSpace + swapchain->device->cursorHeight - swapchain->device->yHotSpot,
        };
        TRACE("Rendering the cursor. Creating fake surface at %p\n", &cursor);
        /* Build a fake surface to call the Blitting code. It is not possible to use the interface passed by
         * the application because we are only supposed to copy the information out. Using a fake surface
         * allows to use the Blitting engine and avoid copying the whole texture -> render target blitting code.
         */
        memset(&cursor, 0, sizeof(cursor));
        cursor.resource.ref = 1;
        cursor.resource.device = swapchain->device;
        cursor.resource.pool = WINED3D_POOL_SCRATCH;
        cursor.resource.format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
        cursor.resource.type = WINED3D_RTYPE_SURFACE;
        cursor.texture_name = swapchain->device->cursorTexture;
        cursor.texture_target = GL_TEXTURE_2D;
        cursor.texture_level = 0;
        cursor.resource.width = swapchain->device->cursorWidth;
        cursor.resource.height = swapchain->device->cursorHeight;
        /* The cursor must have pow2 sizes */
        cursor.pow2Width = cursor.resource.width;
        cursor.pow2Height = cursor.resource.height;
        /* The surface is in the texture */
        cursor.flags |= SFLAG_INTEXTURE;
        /* DDBLT_KEYSRC will cause BltOverride to enable the alpha test with GL_NOTEQUAL, 0.0,
         * which is exactly what we want :-)
         */
        if (swapchain->desc.windowed)
            MapWindowPoints(NULL, swapchain->win_handle, (POINT *)&destRect, 2);
        wined3d_surface_blt(back_buffer, &destRect, &cursor, NULL, WINEDDBLT_KEYSRC,
                NULL, WINED3D_TEXF_POINT);
    }

    if (swapchain->device->logo_surface)
    {
        struct wined3d_surface *src_surface = swapchain->device->logo_surface;
        RECT rect = {0, 0, src_surface->resource.width, src_surface->resource.height};

        /* Blit the logo into the upper left corner of the drawable. */
        wined3d_surface_blt(back_buffer, &rect, src_surface, &rect, WINEDDBLT_KEYSRC,
                NULL, WINED3D_TEXF_POINT);
    }

    TRACE("Presenting HDC %p.\n", context->hdc);

    render_to_fbo = swapchain->render_to_fbo;

    if (src_rect_in)
    {
        src_rect = *src_rect_in;
        if (!render_to_fbo && (src_rect.left || src_rect.top
                || src_rect.right != swapchain->desc.backbuffer_width
                || src_rect.bottom != swapchain->desc.backbuffer_height))
        {
            render_to_fbo = TRUE;
        }
    }
    else
    {
        src_rect.left = 0;
        src_rect.top = 0;
        src_rect.right = swapchain->desc.backbuffer_width;
        src_rect.bottom = swapchain->desc.backbuffer_height;
    }

    if (dst_rect_in)
        dst_rect = *dst_rect_in;
    else
        GetClientRect(swapchain->win_handle, &dst_rect);

    if (!render_to_fbo && (dst_rect.left || dst_rect.top
            || dst_rect.right != swapchain->desc.backbuffer_width
            || dst_rect.bottom != swapchain->desc.backbuffer_height))
        render_to_fbo = TRUE;

    /* Rendering to a window of different size, presenting partial rectangles,
     * or rendering to a different window needs help from FBO_blit or a textured
     * draw. Render the swapchain to a FBO in the future.
     *
     * Note that FBO_blit from the backbuffer to the frontbuffer cannot solve
     * all these issues - this fails if the window is smaller than the backbuffer.
     */
    if (!swapchain->render_to_fbo && render_to_fbo && wined3d_settings.offscreen_rendering_mode == ORM_FBO)
    {
        surface_load_location(back_buffer, SFLAG_INTEXTURE, NULL);
        surface_modify_location(back_buffer, SFLAG_INDRAWABLE, FALSE);
        swapchain->render_to_fbo = TRUE;
        swapchain_update_draw_bindings(swapchain);
    }
    else
    {
        surface_load_location(back_buffer, back_buffer->draw_binding, NULL);
    }

    if (swapchain->render_to_fbo)
    {
        /* This codepath should only be hit with the COPY swapeffect. Otherwise a backbuffer-
         * window size mismatch is impossible(fullscreen) and src and dst rectangles are
         * not allowed(they need the COPY swapeffect)
         *
         * The DISCARD swap effect is ok as well since any backbuffer content is allowed after
         * the swap. */
        if (swapchain->desc.swap_effect == WINED3D_SWAP_EFFECT_FLIP)
            FIXME("Render-to-fbo with WINED3D_SWAP_EFFECT_FLIP\n");

        swapchain_blit(swapchain, context, &src_rect, &dst_rect);
    }

    if (swapchain->num_contexts > 1)
        wglFinish();
    SwapBuffers(context->hdc); /* TODO: cycle through the swapchain buffers */

    TRACE("SwapBuffers called, Starting new frame\n");
    /* FPS support */
    if (TRACE_ON(fps))
    {
        DWORD time = GetTickCount();
        ++swapchain->frames;

        /* every 1.5 seconds */
        if (time - swapchain->prev_time > 1500)
        {
            TRACE_(fps)("%p @ approx %.2ffps\n",
                    swapchain, 1000.0 * swapchain->frames / (time - swapchain->prev_time));
            swapchain->prev_time = time;
            swapchain->frames = 0;
        }
    }

    /* This is disabled, but the code left in for debug purposes.
     *
     * Since we're allowed to modify the new back buffer on a D3DSWAPEFFECT_DISCARD flip,
     * we can clear it with some ugly color to make bad drawing visible and ease debugging.
     * The Debug runtime does the same on Windows. However, a few games do not redraw the
     * screen properly, like Max Payne 2, which leaves a few pixels undefined.
     *
     * Tests show that the content of the back buffer after a discard flip is indeed not
     * reliable, so no game can depend on the exact content. However, it resembles the
     * old contents in some way, for example by showing fragments at other locations. In
     * general, the color theme is still intact. So Max payne, which draws rather dark scenes
     * gets a dark background image. If we clear it with a bright ugly color, the game's
     * bug shows up much more than it does on Windows, and the players see single pixels
     * with wrong colors.
     * (The Max Payne bug has been confirmed on Windows with the debug runtime) */
    if (FALSE && swapchain->desc.swap_effect == WINED3D_SWAP_EFFECT_DISCARD)
    {
        static const struct wined3d_color cyan = {0.0f, 1.0f, 1.0f, 1.0f};

        TRACE("Clearing the color buffer with cyan color\n");

        wined3d_device_clear(swapchain->device, 0, NULL,
                WINED3DCLEAR_TARGET, &cyan, 1.0f, 0);
    }

    if (!swapchain->render_to_fbo && ((swapchain->front_buffer->flags & SFLAG_INSYSMEM)
            || (back_buffer->flags & SFLAG_INSYSMEM)))
    {
        /* Both memory copies of the surfaces are ok, flip them around too instead of dirtifying
         * Doesn't work with render_to_fbo because we're not flipping
         */
        struct wined3d_surface *front = swapchain->front_buffer;

        if (front->resource.size == back_buffer->resource.size)
        {
            DWORD fbflags;
            flip_surface(front, back_buffer);

            /* Tell the front buffer surface that is has been modified. However,
             * the other locations were preserved during that, so keep the flags.
             * This serves to update the emulated overlay, if any. */
            fbflags = front->flags;
            surface_modify_location(front, SFLAG_INDRAWABLE, TRUE);
            front->flags = fbflags;
        }
        else
        {
            surface_modify_location(front, SFLAG_INDRAWABLE, TRUE);
            surface_modify_location(back_buffer, SFLAG_INDRAWABLE, TRUE);
        }
    }
    else
    {
        surface_modify_location(swapchain->front_buffer, SFLAG_INDRAWABLE, TRUE);
        /* 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. If it is FLIP however,
         * the texture / sysmem copy needs to be reloaded from the drawable
         */
        if (swapchain->desc.swap_effect == WINED3D_SWAP_EFFECT_FLIP)
            surface_modify_location(back_buffer, back_buffer->draw_binding, TRUE);
    }

    if (fb->depth_stencil)
    {
        if (swapchain->desc.flags & WINED3DPRESENTFLAG_DISCARD_DEPTHSTENCIL
                || fb->depth_stencil->flags & SFLAG_DISCARD)
        {
            surface_modify_ds_location(fb->depth_stencil, SFLAG_DISCARDED,
                    fb->depth_stencil->resource.width,
                    fb->depth_stencil->resource.height);
            if (fb->depth_stencil == swapchain->device->onscreen_depth_stencil)
            {
                wined3d_surface_decref(swapchain->device->onscreen_depth_stencil);
                swapchain->device->onscreen_depth_stencil = NULL;
            }
        }
    }

    context_release(context);

    TRACE("returning\n");
    return WINED3D_OK;
}
Example #2
0
HRESULT CDECL wined3d_swapchain_resize_buffers(struct wined3d_swapchain *swapchain, unsigned int buffer_count,
        unsigned int width, unsigned int height, enum wined3d_format_id format_id,
        enum wined3d_multisample_type multisample_type, unsigned int multisample_quality)
{
    BOOL update_desc = FALSE;

    TRACE("swapchain %p, buffer_count %u, width %u, height %u, format %s, "
            "multisample_type %#x, multisample_quality %#x.\n",
            swapchain, buffer_count, width, height, debug_d3dformat(format_id),
            multisample_type, multisample_quality);

    if (buffer_count && buffer_count != swapchain->desc.backbuffer_count)
        FIXME("Cannot change the back buffer count yet.\n");

    if (!width || !height)
    {
        /* The application is requesting that either the swapchain width or
         * height be set to the corresponding dimension in the window's
         * client rect. */

        RECT client_rect;

        if (!swapchain->desc.windowed)
            return WINED3DERR_INVALIDCALL;

        if (!GetClientRect(swapchain->device_window, &client_rect))
        {
            ERR("Failed to get client rect, last error %#x.\n", GetLastError());
            return WINED3DERR_INVALIDCALL;
        }

        if (!width)
            width = client_rect.right;

        if (!height)
            height = client_rect.bottom;
    }

    if (width != swapchain->desc.backbuffer_width
            || height != swapchain->desc.backbuffer_height)
    {
        swapchain->desc.backbuffer_width = width;
        swapchain->desc.backbuffer_height = height;
        update_desc = TRUE;
    }

    if (format_id == WINED3DFMT_UNKNOWN)
    {
        if (!swapchain->desc.windowed)
            return WINED3DERR_INVALIDCALL;
        format_id = swapchain->original_mode.format_id;
    }

    if (format_id != swapchain->desc.backbuffer_format)
    {
        swapchain->desc.backbuffer_format = format_id;
        update_desc = TRUE;
    }

    if (multisample_type != swapchain->desc.multisample_type
            || multisample_quality != swapchain->desc.multisample_quality)
    {
        swapchain->desc.multisample_type = multisample_type;
        swapchain->desc.multisample_quality = multisample_quality;
        update_desc = TRUE;
    }

    if (update_desc)
    {
        HRESULT hr;
        UINT i;

        if (FAILED(hr = wined3d_texture_update_desc(swapchain->front_buffer, swapchain->desc.backbuffer_width,
                swapchain->desc.backbuffer_height, swapchain->desc.backbuffer_format,
                swapchain->desc.multisample_type, swapchain->desc.multisample_quality, NULL, 0)))
            return hr;

        for (i = 0; i < swapchain->desc.backbuffer_count; ++i)
        {
            if (FAILED(hr = wined3d_texture_update_desc(swapchain->back_buffers[i], swapchain->desc.backbuffer_width,
                    swapchain->desc.backbuffer_height, swapchain->desc.backbuffer_format,
                    swapchain->desc.multisample_type, swapchain->desc.multisample_quality, NULL, 0)))
                return hr;
        }
    }

    swapchain_update_render_to_fbo(swapchain);
    swapchain_update_draw_bindings(swapchain);

    return WINED3D_OK;
}
Example #3
0
static void swapchain_gl_present(struct wined3d_swapchain *swapchain, const RECT *src_rect_in,
        const RECT *dst_rect_in, const RGNDATA *dirty_region, DWORD flags)
{
    struct wined3d_surface *back_buffer = swapchain->back_buffers[0];
    const struct wined3d_fb_state *fb = &swapchain->device->fb;
    const struct wined3d_gl_info *gl_info;
    struct wined3d_context *context;
    RECT src_rect, dst_rect;
    BOOL render_to_fbo;

    context = context_acquire(swapchain->device, back_buffer);
    if (!context->valid)
    {
        context_release(context);
        WARN("Invalid context, skipping present.\n");
        return;
    }

    gl_info = context->gl_info;

    if (swapchain->device->logo_texture)
    {
        struct wined3d_surface *src_surface = surface_from_resource(
                wined3d_texture_get_sub_resource(swapchain->device->logo_texture, 0));
        RECT rect = {0, 0, src_surface->resource.width, src_surface->resource.height};

        /* Blit the logo into the upper left corner of the drawable. */
        wined3d_surface_blt(back_buffer, &rect, src_surface, &rect, WINEDDBLT_ALPHATEST,
                NULL, WINED3D_TEXF_POINT);
    }

    if (swapchain->device->bCursorVisible && swapchain->device->cursor_texture
            && !swapchain->device->hardwareCursor)
    {
        struct wined3d_surface *cursor = surface_from_resource(
                wined3d_texture_get_sub_resource(swapchain->device->cursor_texture, 0));
        RECT destRect =
        {
            swapchain->device->xScreenSpace - swapchain->device->xHotSpot,
            swapchain->device->yScreenSpace - swapchain->device->yHotSpot,
            swapchain->device->xScreenSpace + swapchain->device->cursorWidth - swapchain->device->xHotSpot,
            swapchain->device->yScreenSpace + swapchain->device->cursorHeight - swapchain->device->yHotSpot,
        };

        TRACE("Rendering the software cursor.\n");

        if (swapchain->desc.windowed)
            MapWindowPoints(NULL, swapchain->win_handle, (POINT *)&destRect, 2);
        wined3d_surface_blt(back_buffer, &destRect, cursor, NULL, WINEDDBLT_ALPHATEST,
                NULL, WINED3D_TEXF_POINT);
    }

    TRACE("Presenting HDC %p.\n", context->hdc);

    render_to_fbo = swapchain->render_to_fbo;

    if (src_rect_in)
    {
        src_rect = *src_rect_in;
        if (!render_to_fbo && (src_rect.left || src_rect.top
                || src_rect.right != swapchain->desc.backbuffer_width
                || src_rect.bottom != swapchain->desc.backbuffer_height))
        {
            render_to_fbo = TRUE;
        }
    }
    else
    {
        src_rect.left = 0;
        src_rect.top = 0;
        src_rect.right = swapchain->desc.backbuffer_width;
        src_rect.bottom = swapchain->desc.backbuffer_height;
    }

    if (dst_rect_in)
        dst_rect = *dst_rect_in;
    else if (context->surface && !swapchain->desc.windowed)
    {
        dst_rect.left = 0;
        dst_rect.top = 0;
        dst_rect.right = swapchain->front_buffer->resource.width;
        dst_rect.bottom = swapchain->front_buffer->resource.height;
    }
    else
        GetClientRect(swapchain->win_handle, &dst_rect);

    if (!render_to_fbo && (dst_rect.left || dst_rect.top
            || dst_rect.right != swapchain->desc.backbuffer_width
            || dst_rect.bottom != swapchain->desc.backbuffer_height))
        render_to_fbo = TRUE;

    /* Rendering to a window of different size, presenting partial rectangles,
     * or rendering to a different window needs help from FBO_blit or a textured
     * draw. Render the swapchain to a FBO in the future.
     *
     * Note that FBO_blit from the backbuffer to the frontbuffer cannot solve
     * all these issues - this fails if the window is smaller than the backbuffer.
     */
    if (!swapchain->render_to_fbo && render_to_fbo && wined3d_settings.offscreen_rendering_mode == ORM_FBO)
    {
        surface_load_location(back_buffer, WINED3D_LOCATION_TEXTURE_RGB);
        surface_invalidate_location(back_buffer, WINED3D_LOCATION_DRAWABLE);
        swapchain->render_to_fbo = TRUE;
        swapchain_update_draw_bindings(swapchain);
    }
    else
    {
        surface_load_location(back_buffer, back_buffer->draw_binding);
    }

    if (swapchain->render_to_fbo)
    {
        static unsigned int once;

        if (swapchain->desc.swap_effect == WINED3D_SWAP_EFFECT_FLIP && !once++)
            FIXME("WINED3D_SWAP_EFFECT_FLIP not implemented.\n");

        swapchain_blit(swapchain, context, &src_rect, &dst_rect);
    }

    if (swapchain->num_contexts > 1)
        gl_info->gl_ops.gl.p_glFinish();

    /* call wglSwapBuffers through the gl table to avoid confusing the Steam overlay */
    gl_info->gl_ops.wgl.p_wglSwapBuffers(context->hdc); /* TODO: cycle through the swapchain buffers */

    TRACE("SwapBuffers called, Starting new frame\n");
    /* FPS support */
    if (TRACE_ON(fps))
    {
        DWORD time = GetTickCount();
        ++swapchain->frames;

        /* every 1.5 seconds */
        if (time - swapchain->prev_time > 1500)
        {
            TRACE_(fps)("%p @ approx %.2ffps\n",
                    swapchain, 1000.0 * swapchain->frames / (time - swapchain->prev_time));
            swapchain->prev_time = time;
            swapchain->frames = 0;
        }
    }

    if (!swapchain->render_to_fbo && ((swapchain->front_buffer->locations & WINED3D_LOCATION_SYSMEM)
            || (back_buffer->locations & WINED3D_LOCATION_SYSMEM)))
    {
        /* Both memory copies of the surfaces are ok, flip them around too instead of dirtifying
         * Doesn't work with render_to_fbo because we're not flipping
         */
        struct wined3d_surface *front = swapchain->front_buffer;

        if (front->resource.size == back_buffer->resource.size)
        {
            flip_surface(front, back_buffer);

            /* Tell the front buffer surface that is has been modified. However,
             * the other locations were preserved during that, so keep the flags.
             * This serves to update the emulated overlay, if any. */
            surface_validate_location(front, WINED3D_LOCATION_DRAWABLE);
        }
        else
        {
            surface_validate_location(front, WINED3D_LOCATION_DRAWABLE);
            surface_invalidate_location(front, ~WINED3D_LOCATION_DRAWABLE);
            surface_validate_location(back_buffer, WINED3D_LOCATION_DRAWABLE);
            surface_invalidate_location(back_buffer, ~WINED3D_LOCATION_DRAWABLE);
        }
    }
    else
    {
        surface_validate_location(swapchain->front_buffer, WINED3D_LOCATION_DRAWABLE);
        surface_invalidate_location(swapchain->front_buffer, ~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. If it is FLIP however,
         * the texture / sysmem copy needs to be reloaded from the drawable
         */
        if (swapchain->desc.swap_effect == WINED3D_SWAP_EFFECT_FLIP)
        {
            surface_validate_location(back_buffer, back_buffer->draw_binding);
            surface_invalidate_location(back_buffer, ~back_buffer->draw_binding);
        }
    }

    if (fb->depth_stencil)
    {
        if (swapchain->desc.flags & WINED3DPRESENTFLAG_DISCARD_DEPTHSTENCIL
                || fb->depth_stencil->flags & SFLAG_DISCARD)
        {
            surface_modify_ds_location(fb->depth_stencil, WINED3D_LOCATION_DISCARDED,
                    fb->depth_stencil->resource.width,
                    fb->depth_stencil->resource.height);
            if (fb->depth_stencil == swapchain->device->onscreen_depth_stencil)
            {
                wined3d_surface_decref(swapchain->device->onscreen_depth_stencil);
                swapchain->device->onscreen_depth_stencil = NULL;
            }
        }
    }

    context_release(context);
}
Example #4
0
static void swapchain_gl_present(struct wined3d_swapchain *swapchain, const RECT *src_rect_in,
        const RECT *dst_rect_in, const RGNDATA *dirty_region, DWORD flags,
        struct wined3d_surface *depth_stencil)
{
    struct wined3d_surface *back_buffer = swapchain->back_buffers[0];
    const struct wined3d_gl_info *gl_info;
    struct wined3d_context *context;
    RECT src_rect, dst_rect;
    BOOL render_to_fbo;

    context = context_acquire(swapchain->device, back_buffer);
    if (!context->valid)
    {
        context_release(context);
        WARN("Invalid context, skipping present.\n");
        return;
    }

    gl_info = context->gl_info;

    if (swapchain->device->logo_texture)
    {
        struct wined3d_surface *src_surface = surface_from_resource(
                wined3d_texture_get_sub_resource(swapchain->device->logo_texture, 0));
        RECT rect = {0, 0, src_surface->resource.width, src_surface->resource.height};

        /* Blit the logo into the upper left corner of the drawable. */
        wined3d_surface_blt(back_buffer, &rect, src_surface, &rect, WINEDDBLT_ALPHATEST,
                NULL, WINED3D_TEXF_POINT);
    }

    TRACE("Presenting HDC %p.\n", context->hdc);

    render_to_fbo = swapchain->render_to_fbo;

    if (src_rect_in)
    {
        src_rect = *src_rect_in;
        if (!render_to_fbo && (src_rect.left || src_rect.top
                || src_rect.right != swapchain->desc.backbuffer_width
                || src_rect.bottom != swapchain->desc.backbuffer_height))
        {
            render_to_fbo = TRUE;
        }
    }
    else
    {
        src_rect.left = 0;
        src_rect.top = 0;
        src_rect.right = swapchain->desc.backbuffer_width;
        src_rect.bottom = swapchain->desc.backbuffer_height;
    }

    if (dst_rect_in)
        dst_rect = *dst_rect_in;
    else
        GetClientRect(swapchain->win_handle, &dst_rect);

    if (!render_to_fbo && (dst_rect.left || dst_rect.top
            || dst_rect.right != swapchain->desc.backbuffer_width
            || dst_rect.bottom != swapchain->desc.backbuffer_height))
        render_to_fbo = TRUE;

    /* Rendering to a window of different size, presenting partial rectangles,
     * or rendering to a different window needs help from FBO_blit or a textured
     * draw. Render the swapchain to a FBO in the future.
     *
     * Note that FBO_blit from the backbuffer to the frontbuffer cannot solve
     * all these issues - this fails if the window is smaller than the backbuffer.
     */
    if (!swapchain->render_to_fbo && render_to_fbo && wined3d_settings.offscreen_rendering_mode == ORM_FBO)
    {
        wined3d_resource_load_location(&back_buffer->resource, context, WINED3D_LOCATION_TEXTURE_RGB);
        wined3d_resource_invalidate_location(&back_buffer->resource, WINED3D_LOCATION_DRAWABLE);
        swapchain->render_to_fbo = TRUE;
        swapchain_update_draw_bindings(swapchain);
    }
    else
    {
        wined3d_resource_load_location(&back_buffer->resource, context, back_buffer->draw_binding);
    }

    if (swapchain->render_to_fbo)
    {
        static unsigned int once;

        if (swapchain->desc.swap_effect == WINED3D_SWAP_EFFECT_FLIP && !once++)
            FIXME("WINED3D_SWAP_EFFECT_FLIP not implemented.\n");

        swapchain_blit(swapchain, context, &src_rect, &dst_rect);
    }

    if (swapchain->num_contexts > 1 && !wined3d_settings.cs_multithreaded)
        gl_info->gl_ops.gl.p_glFlush();

    /* call wglSwapBuffers through the gl table to avoid confusing the Steam overlay */
    gl_info->gl_ops.wgl.p_wglSwapBuffers(context->hdc); /* TODO: cycle through the swapchain buffers */

    TRACE("SwapBuffers called, Starting new frame\n");
    /* FPS support */
    if (TRACE_ON(fps))
    {
        DWORD time = GetTickCount();
        ++swapchain->frames;

        /* every 1.5 seconds */
        if (time - swapchain->prev_time > 1500)
        {
            TRACE_(fps)("%p @ approx %.2ffps\n",
                    swapchain, 1000.0 * swapchain->frames / (time - swapchain->prev_time));
            swapchain->prev_time = time;
            swapchain->frames = 0;
        }
    }

    wined3d_resource_validate_location(&swapchain->front_buffer->resource, WINED3D_LOCATION_DRAWABLE);
    wined3d_resource_invalidate_location(&swapchain->front_buffer->resource, ~WINED3D_LOCATION_DRAWABLE);
    switch (swapchain->desc.swap_effect)
    {
        case WINED3D_SWAP_EFFECT_DISCARD:
            wined3d_resource_validate_location(&back_buffer->resource, WINED3D_LOCATION_DISCARDED);
            break;

        case WINED3D_SWAP_EFFECT_FLIP:
            wined3d_resource_validate_location(&back_buffer->resource, back_buffer->draw_binding);
            wined3d_resource_invalidate_location(&back_buffer->resource, ~back_buffer->draw_binding);
            break;

        default:
            break;
    }

    if (depth_stencil)
    {
        if (swapchain->desc.flags & WINED3DPRESENTFLAG_DISCARD_DEPTHSTENCIL
                || depth_stencil->flags & SFLAG_DISCARD)
        {
            surface_modify_ds_location(depth_stencil, WINED3D_LOCATION_DISCARDED,
                    depth_stencil->resource.width,
                    depth_stencil->resource.height);
            if (depth_stencil == swapchain->device->cs->onscreen_depth_stencil)
            {
                wined3d_surface_decref(swapchain->device->cs->onscreen_depth_stencil);
                swapchain->device->cs->onscreen_depth_stencil = NULL;
            }
        }
    }

    context_release(context);
}