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, 258 insertions, 0 deletions

diff --git a/libfreerdp/gdi/dc.c b/libfreerdp/gdi/dc.c
new file mode 100644
index 0000000..94562b1
--- /dev/null
+++ b/libfreerdp/gdi/dc.c
@@ -0,0 +1,258 @@
+/*
+ * FreeRDP: A Remote Desktop Protocol Implementation
+ * GDI Device Context Functions
+ *
+ * Copyright 2010-2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
+ * Copyright 2016 Armin Novak <armin.novak@thincast.com>
+ * Copyright 2016 Thincast Technologies GmbH
+ *
+ * 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.
+ */
+
+/* Device Context Functions: http://msdn.microsoft.com/en-us/library/dd183554 */
+
+#include <freerdp/config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <freerdp/freerdp.h>
+#include <freerdp/gdi/gdi.h>
+
+#include <freerdp/gdi/region.h>
+
+#include <freerdp/gdi/dc.h>
+
+/**
+ * @brief Get the current device context (a new one is created each time).
+ * msdn{dd144871}
+ *
+ * @return current device context
+ */
+
+HGDI_DC gdi_GetDC(void)
+{
+	HGDI_DC hDC = (HGDI_DC)calloc(1, sizeof(GDI_DC));
+
+	if (!hDC)
+		return NULL;
+
+	hDC->format = PIXEL_FORMAT_XRGB32;
+	hDC->drawMode = GDI_R2_BLACK;
+	hDC->clip = gdi_CreateRectRgn(0, 0, 0, 0);
+
+	if (!hDC->clip)
+	{
+		free(hDC);
+		return NULL;
+	}
+
+	hDC->clip->null = TRUE;
+	hDC->hwnd = NULL;
+	return hDC;
+}
+
+/**
+ * @brief Create a device context.
+ * msdn{dd144871}
+ *
+ * @return new device context
+ */
+
+HGDI_DC gdi_CreateDC(UINT32 format)
+{
+	HGDI_DC hDC = NULL;
+
+	if (!(hDC = (HGDI_DC)calloc(1, sizeof(GDI_DC))))
+		return NULL;
+
+	hDC->drawMode = GDI_R2_BLACK;
+
+	if (!(hDC->clip = gdi_CreateRectRgn(0, 0, 0, 0)))
+		goto fail;
+
+	hDC->clip->null = TRUE;
+	hDC->hwnd = NULL;
+	hDC->format = format;
+
+	if (!(hDC->hwnd = (HGDI_WND)calloc(1, sizeof(GDI_WND))))
+		goto fail;
+
+	if (!(hDC->hwnd->invalid = gdi_CreateRectRgn(0, 0, 0, 0)))
+		goto fail;
+
+	hDC->hwnd->invalid->null = TRUE;
+	hDC->hwnd->count = 32;
+
+	if (!(hDC->hwnd->cinvalid = (HGDI_RGN)calloc(hDC->hwnd->count, sizeof(GDI_RGN))))
+		goto fail;
+
+	hDC->hwnd->ninvalid = 0;
+	return hDC;
+fail:
+	gdi_DeleteDC(hDC);
+	return NULL;
+}
+
+/**
+ * @brief Create a new device context compatible with the given device context.
+ * msdn{dd183489}
+ * @param hdc device context
+ * @return new compatible device context
+ */
+
+HGDI_DC gdi_CreateCompatibleDC(HGDI_DC hdc)
+{
+	HGDI_DC hDC = (HGDI_DC)calloc(1, sizeof(GDI_DC));
+
+	if (!hDC)
+		return NULL;
+
+	if (!(hDC->clip = gdi_CreateRectRgn(0, 0, 0, 0)))
+	{
+		free(hDC);
+		return NULL;
+	}
+
+	hDC->clip->null = TRUE;
+	hDC->format = hdc->format;
+	hDC->drawMode = hdc->drawMode;
+	hDC->hwnd = NULL;
+	return hDC;
+}
+
+/**
+ * @brief Select a GDI object in the current device context.
+ * msdn{dd162957}
+ *
+ * @param hdc device context
+ * @param hgdiobject new selected GDI object
+ * @return previous selected GDI object
+ */
+
+HGDIOBJECT gdi_SelectObject(HGDI_DC hdc, HGDIOBJECT hgdiobject)
+{
+	HGDIOBJECT previousSelectedObject = hdc->selectedObject;
+
+	if (hgdiobject == NULL)
+		return NULL;
+
+	if (hgdiobject->objectType == GDIOBJECT_BITMAP)
+	{
+		hdc->selectedObject = hgdiobject;
+	}
+	else if (hgdiobject->objectType == GDIOBJECT_PEN)
+	{
+		previousSelectedObject = (HGDIOBJECT)hdc->pen;
+		hdc->pen = (HGDI_PEN)hgdiobject;
+	}
+	else if (hgdiobject->objectType == GDIOBJECT_BRUSH)
+	{
+		previousSelectedObject = (HGDIOBJECT)hdc->brush;
+		hdc->brush = (HGDI_BRUSH)hgdiobject;
+	}
+	else if (hgdiobject->objectType == GDIOBJECT_REGION)
+	{
+		hdc->selectedObject = hgdiobject;
+		previousSelectedObject = (HGDIOBJECT)COMPLEXREGION;
+	}
+	else if (hgdiobject->objectType == GDIOBJECT_RECT)
+	{
+		hdc->selectedObject = hgdiobject;
+		previousSelectedObject = (HGDIOBJECT)SIMPLEREGION;
+	}
+	else
+	{
+		/* Unknown GDI Object Type */
+		return NULL;
+	}
+
+	return previousSelectedObject;
+}
+
+/**
+ * @brief Delete a GDI object.
+ * msdn{dd183539}
+ * @param hgdiobject GDI object
+ * @return nonzero if successful, 0 otherwise
+ */
+
+BOOL gdi_DeleteObject(HGDIOBJECT hgdiobject)
+{
+	if (!hgdiobject)
+		return FALSE;
+
+	if (hgdiobject->objectType == GDIOBJECT_BITMAP)
+	{
+		HGDI_BITMAP hBitmap = (HGDI_BITMAP)hgdiobject;
+
+		if (hBitmap->data && hBitmap->free)
+		{
+			hBitmap->free(hBitmap->data);
+			hBitmap->data = NULL;
+		}
+
+		free(hBitmap);
+	}
+	else if (hgdiobject->objectType == GDIOBJECT_PEN)
+	{
+		HGDI_PEN hPen = (HGDI_PEN)hgdiobject;
+		free(hPen);
+	}
+	else if (hgdiobject->objectType == GDIOBJECT_BRUSH)
+	{
+		HGDI_BRUSH hBrush = (HGDI_BRUSH)hgdiobject;
+		free(hBrush);
+	}
+	else if (hgdiobject->objectType == GDIOBJECT_REGION)
+	{
+		free(hgdiobject);
+	}
+	else if (hgdiobject->objectType == GDIOBJECT_RECT)
+	{
+		free(hgdiobject);
+	}
+	else
+	{
+		/* Unknown GDI Object Type */
+		free(hgdiobject);
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
+/**
+ * @brief Delete device context.
+ * msdn{dd183533}
+ * @param hdc device context
+ * @return nonzero if successful, 0 otherwise
+ */
+
+BOOL gdi_DeleteDC(HGDI_DC hdc)
+{
+	if (hdc)
+	{
+		if (hdc->hwnd)
+		{
+			free(hdc->hwnd->cinvalid);
+			free(hdc->hwnd->invalid);
+			free(hdc->hwnd);
+		}
+
+		free(hdc->clip);
+		free(hdc);
+	}
+
+	return TRUE;
+}