Adding upstream version 3.3.0+dfsg1.upstream/3.3.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 331 insertions, 0 deletions

diff --git a/client/SDL/sdl_monitor.cpp b/client/SDL/sdl_monitor.cpp
new file mode 100644
index 0000000..e637b48
--- /dev/null
+++ b/client/SDL/sdl_monitor.cpp
@@ -0,0 +1,331 @@
+/**
+ * FreeRDP: A Remote Desktop Protocol Implementation
+ * X11 Monitor Handling
+ *
+ * Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
+ * Copyright 2017 David Fort <contact@hardening-consulting.com>
+ * Copyright 2018 Kai Harms <kharms@rangee.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 <cstdio>
+#include <cstdlib>
+#include <cstring>
+
+#include <SDL.h>
+
+#include <winpr/assert.h>
+#include <winpr/crt.h>
+
+#include <freerdp/log.h>
+
+#define TAG CLIENT_TAG("sdl")
+
+#include "sdl_monitor.hpp"
+#include "sdl_freerdp.hpp"
+
+typedef struct
+{
+	RECTANGLE_16 area;
+	RECTANGLE_16 workarea;
+	BOOL primary;
+} MONITOR_INFO;
+
+typedef struct
+{
+	int nmonitors;
+	RECTANGLE_16 area;
+	RECTANGLE_16 workarea;
+	MONITOR_INFO* monitors;
+} VIRTUAL_SCREEN;
+
+/* See MSDN Section on Multiple Display Monitors: http://msdn.microsoft.com/en-us/library/dd145071
+ */
+
+int sdl_list_monitors(SdlContext* sdl)
+{
+	SDL_Init(SDL_INIT_VIDEO);
+	const int nmonitors = SDL_GetNumVideoDisplays();
+
+	printf("listing %d monitors:\n", nmonitors);
+	for (int i = 0; i < nmonitors; i++)
+	{
+		SDL_Rect rect = {};
+		const int brc = SDL_GetDisplayBounds(i, &rect);
+		const char* name = SDL_GetDisplayName(i);
+
+		if (brc != 0)
+			continue;
+		printf("     %s [%d] [%s] %dx%d\t+%d+%d\n", (i == 0) ? "*" : " ", i, name, rect.w, rect.h,
+		       rect.x, rect.y);
+	}
+
+	SDL_Quit();
+	return 0;
+}
+
+static BOOL sdl_is_monitor_id_active(SdlContext* sdl, UINT32 id)
+{
+	const rdpSettings* settings = nullptr;
+
+	WINPR_ASSERT(sdl);
+
+	settings = sdl->context()->settings;
+	WINPR_ASSERT(settings);
+
+	const UINT32 NumMonitorIds = freerdp_settings_get_uint32(settings, FreeRDP_NumMonitorIds);
+	if (!NumMonitorIds)
+		return TRUE;
+
+	for (UINT32 index = 0; index < NumMonitorIds; index++)
+	{
+		auto cur = static_cast<const UINT32*>(
+		    freerdp_settings_get_pointer_array(settings, FreeRDP_MonitorIds, index));
+		if (cur && (*cur == id))
+			return TRUE;
+	}
+
+	return FALSE;
+}
+
+static BOOL sdl_apply_max_size(SdlContext* sdl, UINT32* pMaxWidth, UINT32* pMaxHeight)
+{
+	WINPR_ASSERT(sdl);
+	WINPR_ASSERT(pMaxWidth);
+	WINPR_ASSERT(pMaxHeight);
+
+	auto settings = sdl->context()->settings;
+	WINPR_ASSERT(settings);
+
+	*pMaxWidth = 0;
+	*pMaxHeight = 0;
+
+	for (size_t x = 0; x < freerdp_settings_get_uint32(settings, FreeRDP_MonitorCount); x++)
+	{
+		auto monitor = static_cast<const rdpMonitor*>(
+		    freerdp_settings_get_pointer_array(settings, FreeRDP_MonitorDefArray, x));
+
+		if (freerdp_settings_get_bool(settings, FreeRDP_Fullscreen))
+		{
+			*pMaxWidth = monitor->width;
+			*pMaxHeight = monitor->height;
+		}
+		else if (freerdp_settings_get_bool(settings, FreeRDP_Workarea))
+		{
+			SDL_Rect rect = {};
+			SDL_GetDisplayUsableBounds(monitor->orig_screen, &rect);
+			*pMaxWidth = rect.w;
+			*pMaxHeight = rect.h;
+		}
+		else if (freerdp_settings_get_uint32(settings, FreeRDP_PercentScreen) > 0)
+		{
+			SDL_Rect rect = {};
+			SDL_GetDisplayUsableBounds(monitor->orig_screen, &rect);
+
+			*pMaxWidth = rect.w;
+			*pMaxHeight = rect.h;
+
+			if (freerdp_settings_get_bool(settings, FreeRDP_PercentScreenUseWidth))
+				*pMaxWidth =
+				    (rect.w * freerdp_settings_get_uint32(settings, FreeRDP_PercentScreen)) / 100;
+
+			if (freerdp_settings_get_bool(settings, FreeRDP_PercentScreenUseHeight))
+				*pMaxHeight =
+				    (rect.h * freerdp_settings_get_uint32(settings, FreeRDP_PercentScreen)) / 100;
+		}
+		else if (freerdp_settings_get_uint32(settings, FreeRDP_DesktopWidth) &&
+		         freerdp_settings_get_uint32(settings, FreeRDP_DesktopHeight))
+		{
+			*pMaxWidth = freerdp_settings_get_uint32(settings, FreeRDP_DesktopWidth);
+			*pMaxHeight = freerdp_settings_get_uint32(settings, FreeRDP_DesktopHeight);
+		}
+	}
+	return TRUE;
+}
+
+#if SDL_VERSION_ATLEAST(2, 0, 10)
+static UINT32 sdl_orientaion_to_rdp(SDL_DisplayOrientation orientation)
+{
+	switch (orientation)
+	{
+		case SDL_ORIENTATION_LANDSCAPE:
+			return ORIENTATION_LANDSCAPE;
+		case SDL_ORIENTATION_LANDSCAPE_FLIPPED:
+			return ORIENTATION_LANDSCAPE_FLIPPED;
+		case SDL_ORIENTATION_PORTRAIT_FLIPPED:
+			return ORIENTATION_PORTRAIT_FLIPPED;
+		case SDL_ORIENTATION_PORTRAIT:
+		default:
+			return ORIENTATION_PORTRAIT;
+	}
+}
+#endif
+
+static BOOL sdl_apply_display_properties(SdlContext* sdl)
+{
+	WINPR_ASSERT(sdl);
+
+	rdpSettings* settings = sdl->context()->settings;
+	WINPR_ASSERT(settings);
+
+	const UINT32 numIds = freerdp_settings_get_uint32(settings, FreeRDP_NumMonitorIds);
+	if (!freerdp_settings_set_pointer_len(settings, FreeRDP_MonitorDefArray, nullptr, numIds))
+		return FALSE;
+	if (!freerdp_settings_set_uint32(settings, FreeRDP_MonitorCount, numIds))
+		return FALSE;
+
+	for (UINT32 x = 0; x < numIds; x++)
+	{
+		auto id = static_cast<const UINT32*>(
+		    freerdp_settings_get_pointer_array(settings, FreeRDP_MonitorIds, x));
+		WINPR_ASSERT(id);
+
+		float ddpi = 1.0f;
+		float hdpi = 1.0f;
+		float vdpi = 1.0f;
+		SDL_Rect rect = {};
+
+		SDL_GetDisplayBounds(*id, &rect);
+		SDL_GetDisplayDPI(*id, &ddpi, &hdpi, &vdpi);
+
+		bool highDpi = hdpi > 100;
+
+		if (highDpi)
+		{
+			// HighDPI is problematic with SDL: We can only get native resolution by creating a
+			// window. Work around this by checking the supported resolutions (and keep maximum)
+			// Also scale the DPI
+			const SDL_Rect scaleRect = rect;
+			for (int i = 0; i < SDL_GetNumDisplayModes(*id); i++)
+			{
+				SDL_DisplayMode mode = {};
+				SDL_GetDisplayMode(x, i, &mode);
+
+				if (mode.w > rect.w)
+				{
+					rect.w = mode.w;
+					rect.h = mode.h;
+				}
+				else if (mode.w == rect.w)
+				{
+					if (mode.h > rect.h)
+					{
+						rect.w = mode.w;
+						rect.h = mode.h;
+					}
+				}
+			}
+
+			const float dw = 1.0f * rect.w / scaleRect.w;
+			const float dh = 1.0f * rect.h / scaleRect.h;
+			hdpi /= dw;
+			vdpi /= dh;
+		}
+
+#if SDL_VERSION_ATLEAST(2, 0, 10)
+		const SDL_DisplayOrientation orientation = SDL_GetDisplayOrientation(*id);
+		const UINT32 rdp_orientation = sdl_orientaion_to_rdp(orientation);
+#else
+		const UINT32 rdp_orientation = ORIENTATION_LANDSCAPE;
+#endif
+
+		auto monitor = static_cast<rdpMonitor*>(
+		    freerdp_settings_get_pointer_array_writable(settings, FreeRDP_MonitorDefArray, x));
+		WINPR_ASSERT(monitor);
+
+		/* windows uses 96 dpi as 'default' and the scale factors are in percent. */
+		const auto factor = ddpi / 96.0f * 100.0f;
+		monitor->orig_screen = x;
+		monitor->x = rect.x;
+		monitor->y = rect.y;
+		monitor->width = rect.w;
+		monitor->height = rect.h;
+		monitor->is_primary = x == 0;
+		monitor->attributes.desktopScaleFactor = factor;
+		monitor->attributes.deviceScaleFactor = 100;
+		monitor->attributes.orientation = rdp_orientation;
+		monitor->attributes.physicalWidth = rect.w / hdpi;
+		monitor->attributes.physicalHeight = rect.h / vdpi;
+	}
+	return TRUE;
+}
+
+static BOOL sdl_detect_single_window(SdlContext* sdl, UINT32* pMaxWidth, UINT32* pMaxHeight)
+{
+	WINPR_ASSERT(sdl);
+	WINPR_ASSERT(pMaxWidth);
+	WINPR_ASSERT(pMaxHeight);
+
+	rdpSettings* settings = sdl->context()->settings;
+	WINPR_ASSERT(settings);
+
+	if ((!freerdp_settings_get_bool(settings, FreeRDP_UseMultimon) &&
+	     !freerdp_settings_get_bool(settings, FreeRDP_SpanMonitors)) ||
+	    (freerdp_settings_get_bool(settings, FreeRDP_Workarea) &&
+	     !freerdp_settings_get_bool(settings, FreeRDP_RemoteApplicationMode)))
+	{
+		/* If no monitors were specified on the command-line then set the current monitor as active
+		 */
+		if (freerdp_settings_get_uint32(settings, FreeRDP_NumMonitorIds) == 0)
+		{
+			const size_t id =
+			    (sdl->windows.size() > 0) ? sdl->windows.begin()->second.displayIndex() : 0;
+			if (!freerdp_settings_set_pointer_len(settings, FreeRDP_MonitorIds, &id, 1))
+				return FALSE;
+		}
+		else
+		{
+
+			/* Always sets number of monitors from command-line to just 1.
+			 * If the monitor is invalid then we will default back to current monitor
+			 * later as a fallback. So, there is no need to validate command-line entry here.
+			 */
+			if (!freerdp_settings_set_uint32(settings, FreeRDP_NumMonitorIds, 1))
+				return FALSE;
+		}
+
+		// TODO: Fill monitor struct
+		if (!sdl_apply_display_properties(sdl))
+			return FALSE;
+		return sdl_apply_max_size(sdl, pMaxWidth, pMaxHeight);
+	}
+	return TRUE;
+}
+
+BOOL sdl_detect_monitors(SdlContext* sdl, UINT32* pMaxWidth, UINT32* pMaxHeight)
+{
+	WINPR_ASSERT(sdl);
+	WINPR_ASSERT(pMaxWidth);
+	WINPR_ASSERT(pMaxHeight);
+
+	rdpSettings* settings = sdl->context()->settings;
+	WINPR_ASSERT(settings);
+
+	const int numDisplays = SDL_GetNumVideoDisplays();
+	if (!freerdp_settings_set_pointer_len(settings, FreeRDP_MonitorIds, nullptr, numDisplays))
+		return FALSE;
+
+	for (size_t x = 0; x < numDisplays; x++)
+	{
+		if (!freerdp_settings_set_pointer_array(settings, FreeRDP_MonitorIds, x, &x))
+			return FALSE;
+	}
+
+	if (!sdl_apply_display_properties(sdl))
+		return FALSE;
+
+	return sdl_detect_single_window(sdl, pMaxWidth, pMaxHeight);
+}