wined3d: Rotate through swapchain buffers.

dlls/d3d8/tests/visual.c

@@ -8041,9 +8041,9 @@ static void test_flip(void)
 
     /* Contents were changed. */
     color = get_surface_color(back_buffers[0], 1, 1);
-    todo_wine ok(color == 0xff00ff00, "Got unexpected color 0x%08x.\n", color);
+    ok(color == 0xff00ff00, "Got unexpected color 0x%08x.\n", color);
     color = get_surface_color(back_buffers[1], 1, 1);
-    todo_wine ok(color == 0xff0000ff, "Got unexpected color 0x%08x.\n", color);
+    ok(color == 0xff0000ff, "Got unexpected color 0x%08x.\n", color);
 
     hr = IDirect3DDevice8_Clear(device, 0, NULL, D3DCLEAR_TARGET, 0xff808080, 0.0f, 0);
     ok(SUCCEEDED(hr), "Failed to clear, hr %#x\n", hr);
@@ -8052,15 +8052,15 @@ static void test_flip(void)
     ok(SUCCEEDED(hr), "Failed to present, hr %#x.\n", hr);
 
     color = get_surface_color(back_buffers[0], 1, 1);
-    todo_wine ok(color == 0xff0000ff, "Got unexpected color 0x%08x.\n", color);
+    ok(color == 0xff0000ff, "Got unexpected color 0x%08x.\n", color);
     color = get_surface_color(back_buffers[1], 1, 1);
-    todo_wine ok(color == 0xff808080, "Got unexpected color 0x%08x.\n", color);
+    ok(color == 0xff808080, "Got unexpected color 0x%08x.\n", color);
 
     hr = IDirect3DDevice8_Present(device, NULL, NULL, NULL, NULL);
     ok(SUCCEEDED(hr), "Failed to present, hr %#x.\n", hr);
 
     color = get_surface_color(back_buffers[0], 1, 1);
-    todo_wine ok(color == 0xff808080, "Got unexpected color 0x%08x.\n", color);
+    ok(color == 0xff808080, "Got unexpected color 0x%08x.\n", color);
 
     for (i = 0; i < sizeof(back_buffers) / sizeof(*back_buffers); ++i)
         IDirect3DSurface8_Release(back_buffers[i]);

dlls/d3d9/tests/visual.c

@@ -20185,9 +20185,9 @@ static void test_flip(void)
 
     /* Contents were changed. */
     color = getPixelColorFromSurface(back_buffers[0], 1, 1);
-    todo_wine ok(color == 0xff00ff00, "Got unexpected color 0x%08x.\n", color);
+    ok(color == 0xff00ff00, "Got unexpected color 0x%08x.\n", color);
     color = getPixelColorFromSurface(back_buffers[1], 1, 1);
-    todo_wine ok(color == 0xff0000ff, "Got unexpected color 0x%08x.\n", color);
+    ok(color == 0xff0000ff, "Got unexpected color 0x%08x.\n", color);
 
     hr = IDirect3DDevice9_Clear(device, 0, NULL, D3DCLEAR_TARGET, 0xff808080, 0.0f, 0);
     ok(SUCCEEDED(hr), "Failed to clear, hr %#x\n", hr);
@@ -20196,15 +20196,15 @@ static void test_flip(void)
     ok(SUCCEEDED(hr), "Failed to present, hr %#x.\n", hr);
 
     color = getPixelColorFromSurface(back_buffers[0], 1, 1);
-    todo_wine ok(color == 0xff0000ff, "Got unexpected color 0x%08x.\n", color);
+    ok(color == 0xff0000ff, "Got unexpected color 0x%08x.\n", color);
     color = getPixelColorFromSurface(back_buffers[1], 1, 1);
-    todo_wine ok(color == 0xff808080, "Got unexpected color 0x%08x.\n", color);
+    ok(color == 0xff808080, "Got unexpected color 0x%08x.\n", color);
 
     hr = IDirect3DDevice9_Present(device, NULL, NULL, NULL, NULL);
     ok(SUCCEEDED(hr), "Failed to present, hr %#x.\n", hr);
 
     color = getPixelColorFromSurface(back_buffers[0], 1, 1);
-    todo_wine ok(color == 0xff808080, "Got unexpected color 0x%08x.\n", color);
+    ok(color == 0xff808080, "Got unexpected color 0x%08x.\n", color);
 
     for (i = 0; i < sizeof(back_buffers) / sizeof(*back_buffers); ++i)
         IDirect3DSurface9_Release(back_buffers[i]);

dlls/wined3d/swapchain.c

@@ -422,6 +422,51 @@ static void swapchain_blit(const struct wined3d_swapchain *swapchain,
     }
 }
 
+/* Context activation is done by the caller. */
+static void wined3d_swapchain_rotate(struct wined3d_swapchain *swapchain, struct wined3d_context *context)
+{
+    struct gl_texture tex0;
+    GLuint rb0;
+    DWORD locations0;
+    struct wined3d_surface *surface, *surface_prev;
+    unsigned int i;
+    static const DWORD supported_locations = WINED3D_LOCATION_TEXTURE_RGB | WINED3D_LOCATION_RB_MULTISAMPLE;
+
+    if (swapchain->desc.backbuffer_count < 2 || !swapchain->render_to_fbo)
+        return;
+
+    surface_prev = surface_from_resource(wined3d_texture_get_sub_resource(swapchain->back_buffers[0], 0));
+
+    /* Back buffer 0 is already in the draw binding. */
+    tex0 = swapchain->back_buffers[0]->texture_rgb;
+    rb0 = surface_prev->rb_multisample;
+    locations0 = surface_prev->locations;
+
+    for (i = 1; i < swapchain->desc.backbuffer_count; ++i)
+    {
+        surface = surface_from_resource(wined3d_texture_get_sub_resource(swapchain->back_buffers[i], 0));
+
+        if (!(surface->locations & supported_locations))
+            surface_load_location(surface, context, swapchain->back_buffers[i]->resource.draw_binding);
+
+        swapchain->back_buffers[i - 1]->texture_rgb = swapchain->back_buffers[i]->texture_rgb;
+        surface_prev->rb_multisample = surface->rb_multisample;
+
+        surface_validate_location(surface_prev, surface->locations & supported_locations);
+        surface_invalidate_location(surface_prev, ~(surface->locations & supported_locations));
+
+        surface_prev = surface;
+    }
+
+    swapchain->back_buffers[i - 1]->texture_rgb = tex0;
+    surface_prev->rb_multisample = rb0;
+
+    surface_validate_location(surface_prev, locations0 & supported_locations);
+    surface_invalidate_location(surface_prev, ~(locations0 & supported_locations));
+
+    device_invalidate_state(swapchain->device, STATE_FRAMEBUFFER);
+}
+
 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)
 {
@@ -549,7 +594,9 @@ static void swapchain_gl_present(struct wined3d_swapchain *swapchain, const RECT
         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 */
+    gl_info->gl_ops.wgl.p_wglSwapBuffers(context->hdc);
+
+    wined3d_swapchain_rotate(swapchain, context);
 
     TRACE("SwapBuffers called, Starting new frame\n");
     /* FPS support */