initial import of qtrdesktop - not yet opiefied but working

1 files changed, 235 insertions, 0 deletions

diff --git a/noncore/net/opierdesktop/cache.cpp b/noncore/net/opierdesktop/cache.cpp
new file mode 100644
index 0000000..42ab135
--- a/dev/null
+++ b/noncore/net/opierdesktop/cache.cpp
@@ -0,0 +1,235 @@
+/*
+   rdesktop: A Remote Desktop Protocol client.
+   Cache routines
+   Copyright (C) Matthew Chapman 1999-2002
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "rdesktop.h"
+
+#define NUM_ELEMENTS(array) (sizeof(array) / sizeof(array[0]))
+
+
+/* BITMAP CACHE */
+static HBITMAP bmpcache[3][600];
+
+/* Retrieve a bitmap from the cache */
+HBITMAP
+cache_get_bitmap(uint8 cache_id, uint16 cache_idx)
+{
+	HBITMAP bitmap;
+
+	if ((cache_id < NUM_ELEMENTS(bmpcache)) && (cache_idx < NUM_ELEMENTS(bmpcache[0])))
+	{
+		bitmap = bmpcache[cache_id][cache_idx];
+		if (bitmap != NULL)
+			return bitmap;
+	}
+
+	error("get bitmap %d:%d\n", cache_id, cache_idx);
+	return NULL;
+}
+
+/* Store a bitmap in the cache */
+void
+cache_put_bitmap(uint8 cache_id, uint16 cache_idx, HBITMAP bitmap)
+{
+	HBITMAP old;
+
+	if ((cache_id < NUM_ELEMENTS(bmpcache)) && (cache_idx < NUM_ELEMENTS(bmpcache[0])))
+	{
+		old = bmpcache[cache_id][cache_idx];
+		if (old != NULL)
+			ui_destroy_bitmap(old);
+
+		bmpcache[cache_id][cache_idx] = bitmap;
+	}
+	else
+	{
+		error("put bitmap %d:%d\n", cache_id, cache_idx);
+	}
+}
+
+
+/* FONT CACHE */
+static FONTGLYPH fontcache[12][256];
+
+/* Retrieve a glyph from the font cache */
+FONTGLYPH *
+cache_get_font(uint8 font, uint16 character)
+{
+	FONTGLYPH *glyph;
+
+	if ((font < NUM_ELEMENTS(fontcache)) && (character < NUM_ELEMENTS(fontcache[0])))
+	{
+		glyph = &fontcache[font][character];
+		if (glyph->pixmap != NULL)
+			return glyph;
+	}
+
+	error("get font %d:%d\n", font, character);
+	return NULL;
+}
+
+/* Store a glyph in the font cache */
+void
+cache_put_font(uint8 font, uint16 character, uint16 offset,
+	       uint16 baseline, uint16 width, uint16 height, HGLYPH pixmap)
+{
+	FONTGLYPH *glyph;
+
+	if ((font < NUM_ELEMENTS(fontcache)) && (character < NUM_ELEMENTS(fontcache[0])))
+	{
+		glyph = &fontcache[font][character];
+		if (glyph->pixmap != NULL)
+			ui_destroy_glyph(glyph->pixmap);
+
+		glyph->offset = offset;
+		glyph->baseline = baseline;
+		glyph->width = width;
+		glyph->height = height;
+		glyph->pixmap = pixmap;
+	}
+	else
+	{
+		error("put font %d:%d\n", font, character);
+	}
+}
+
+
+/* TEXT CACHE */
+static DATABLOB textcache[256];
+
+/* Retrieve a text item from the cache */
+DATABLOB *
+cache_get_text(uint8 cache_id)
+{
+	DATABLOB *text;
+
+	if (cache_id < NUM_ELEMENTS(textcache))
+	{
+		text = &textcache[cache_id];
+		if (text->data != NULL)
+			return text;
+	}
+
+	error("get text %d\n", cache_id);
+	return NULL;
+}
+
+/* Store a text item in the cache */
+void
+cache_put_text(uint8 cache_id, void *data, int length)
+{
+	DATABLOB *text;
+
+	if (cache_id < NUM_ELEMENTS(textcache))
+	{
+		text = &textcache[cache_id];
+		if (text->data != NULL)
+			xfree(text->data);
+
+		text->data = xmalloc(length);
+		text->size = length;
+		memcpy(text->data, data, length);
+	}
+	else
+	{
+		error("put text %d\n", cache_id);
+	}
+}
+
+
+/* DESKTOP CACHE */
+static uint8 deskcache[0x38400];
+
+/* Retrieve desktop data from the cache */
+uint8 *
+cache_get_desktop(uint32 offset, int cx, int cy, int bytes_per_pixel)
+{
+	int length = cx * cy * bytes_per_pixel;
+
+	if ((offset + length) <= sizeof(deskcache))
+	{
+		return &deskcache[offset];
+	}
+
+	error("get desktop %d:%d\n", offset, length);
+	return NULL;
+}
+
+/* Store desktop data in the cache */
+void
+cache_put_desktop(uint32 offset, int cx, int cy, int scanline, int bytes_per_pixel, uint8 * data)
+{
+	int length = cx * cy * bytes_per_pixel;
+
+	if ((offset + length) <= sizeof(deskcache))
+	{
+		cx *= bytes_per_pixel;
+		while (cy--)
+		{
+			memcpy(&deskcache[offset], data, cx);
+			data += scanline;
+			offset += cx;
+		}
+	}
+	else
+	{
+		error("put desktop %d:%d\n", offset, length);
+	}
+}
+
+
+/* CURSOR CACHE */
+static HCURSOR cursorcache[0x20];
+
+/* Retrieve cursor from cache */
+HCURSOR
+cache_get_cursor(uint16 cache_idx)
+{
+	HCURSOR cursor;
+
+	if (cache_idx < NUM_ELEMENTS(cursorcache))
+	{
+		cursor = cursorcache[cache_idx];
+		if (cursor != NULL)
+			return cursor;
+	}
+
+	error("get cursor %d\n", cache_idx);
+	return NULL;
+}
+
+/* Store cursor in cache */
+void
+cache_put_cursor(uint16 cache_idx, HCURSOR cursor)
+{
+	HCURSOR old;
+
+	if (cache_idx < NUM_ELEMENTS(cursorcache))
+	{
+		old = cursorcache[cache_idx];
+		if (old != NULL)
+			ui_destroy_cursor(old);
+
+		cursorcache[cache_idx] = cursor;
+	}
+	else
+	{
+		error("put cursor %d\n", cache_idx);
+	}
+}