Milestone 5: deliver embedded RDP sessions and lifecycle hardening

third_party/FreeRDP/server/shadow/shadow_lobby.c

@@ -0,0 +1,101 @@
+/**
+ * FreeRDP: A Remote Desktop Protocol Implementation
+ *
+ * Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <freerdp/config.h>
+
+#include <winpr/assert.h>
+#include <winpr/cast.h>
+
+#if defined(WITH_RDTK)
+#include <rdtk/rdtk.h>
+#endif
+
+#include "shadow.h"
+
+#include "shadow_lobby.h"
+
+BOOL shadow_client_init_lobby(rdpShadowServer* server)
+{
+	BOOL rc = FALSE;
+	RECTANGLE_16 invalidRect = WINPR_C_ARRAY_INIT;
+
+	WINPR_ASSERT(server);
+	rdpShadowSurface* lobby = server->lobby;
+
+	if (!lobby)
+		return FALSE;
+
+#if defined(WITH_RDTK)
+	rdtkEngine* engine = rdtk_engine_new();
+	if (!engine)
+		return FALSE;
+
+	EnterCriticalSection(&lobby->lock);
+	rdtkSurface* surface =
+	    rdtk_surface_new(engine, lobby->data, WINPR_ASSERTING_INT_CAST(uint16_t, lobby->width),
+	                     WINPR_ASSERTING_INT_CAST(uint16_t, lobby->height), lobby->scanline);
+	if (!surface)
+		goto fail;
+#endif
+
+	invalidRect.left = 0;
+	invalidRect.top = 0;
+	WINPR_ASSERT(lobby->width <= UINT16_MAX);
+	WINPR_ASSERT(lobby->height <= UINT16_MAX);
+	invalidRect.right = (UINT16)lobby->width;
+	invalidRect.bottom = (UINT16)lobby->height;
+	if (server->shareSubRect)
+	{
+		/* If we have shared sub rect setting, only fill shared rect */
+		if (!rectangles_intersection(&invalidRect, &(server->subRect), &invalidRect))
+			goto fail;
+	}
+
+#if defined(WITH_RDTK)
+	const int width = invalidRect.right - invalidRect.left;
+	const int height = invalidRect.bottom - invalidRect.top;
+	WINPR_ASSERT(width <= UINT16_MAX);
+	WINPR_ASSERT(width >= 0);
+	WINPR_ASSERT(height <= UINT16_MAX);
+	WINPR_ASSERT(height >= 0);
+
+	if (rdtk_surface_fill(surface, invalidRect.left, invalidRect.top, (UINT16)width, (UINT16)height,
+	                      0x3BB9FF) < 0)
+		goto fail;
+
+	if (rdtk_label_draw(surface, invalidRect.left, invalidRect.top, (UINT16)width, (UINT16)height,
+	                    nullptr, "Welcome", 0, 0) < 0)
+		goto fail;
+	// rdtk_button_draw(surface, 16, 64, 128, 32, nullptr, "button");
+	// rdtk_text_field_draw(surface, 16, 128, 128, 32, nullptr, "text field");
+#endif
+
+	if (!region16_union_rect(&(lobby->invalidRegion), &(lobby->invalidRegion), &invalidRect))
+		goto fail;
+
+	rc = TRUE;
+fail:
+
+#if defined(WITH_RDTK)
+	rdtk_surface_free(surface);
+	rdtk_engine_free(engine);
+#endif
+
+	LeaveCriticalSection(&lobby->lock);
+	return rc;
+}