libfreerdp-utils: added util to dump images to bitmap files

include/freerdp/utils/bitmap.h

@@ -0,0 +1,27 @@
+/**
+ * FreeRDP: A Remote Desktop Protocol Client
+ * Bitmap File Format Utils
+ *
+ * Copyright 2011 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.
+ */
+
+#ifndef __UTILS_BITMAP_H
+#define __UTILS_BITMAP_H
+
+#include <freerdp/api.h>
+
+FREERDP_API void freerdp_bitmap_write(char* filename, void* data, int width, int height, int bpp);
+
+#endif /* __UTILS_BITMAP_H */

libfreerdp-gdi/gdi.c

@@ -24,6 +24,7 @@
 #include <freerdp/freerdp.h>
 #include <freerdp/constants.h>
 #include <freerdp/gdi/color.h>
+#include <freerdp/utils/bitmap.h>
 #include <freerdp/rfx/rfx.h>
 
 #include <freerdp/gdi/dc.h>
@@ -754,11 +755,14 @@ void gdi_cache_brush(rdpUpdate* update, CACHE_BRUSH_ORDER* cache_brush)
 	brush_put(gdi->cache->brush, cache_brush->index, cache_brush->data, cache_brush->bpp);
 }
 
+int tilenum = 0;
+
 void gdi_surface_bits(rdpUpdate* update, SURFACE_BITS_COMMAND* surface_bits_command)
 {
 	int i, j;
 	int tx, ty;
 	STREAM* s;
+	char* tile_bitmap;
 	RFX_MESSAGE* message;
 	GDI* gdi = GET_GDI(update);
 	RFX_CONTEXT* context = (RFX_CONTEXT*) gdi->rfx_context;
@@ -771,6 +775,8 @@ void gdi_surface_bits(rdpUpdate* update, SURFACE_BITS_COMMAND* surface_bits_comm
 		surface_bits_command->width, surface_bits_command->height,
 		surface_bits_command->bitmapDataLength);
 
+	tile_bitmap = xzalloc(32);
+
 	if (surface_bits_command->codecID == CODEC_ID_REMOTEFX)
 	{
 		s = stream_new(0);
@@ -790,6 +796,11 @@ void gdi_surface_bits(rdpUpdate* update, SURFACE_BITS_COMMAND* surface_bits_comm
 
 				gdi_image_convert(message->tiles[i]->data, gdi->tile->bitmap->data, 64, 64, 32, 32, gdi->clrconv);
 
+#ifdef DUMP_REMOTEFX_TILES
+				sprintf(tile_bitmap, "/tmp/rfx/tile_%d.bmp", tilenum++);
+				freerdp_bitmap_write(tile_bitmap, gdi->tile->bitmap->data, 64, 64, 32);
+#endif
+
 				for (j = 0; j < message->num_rects; j++)
 				{
 					gdi_SetClipRgn(gdi->primary->hdc,
@@ -824,6 +835,11 @@ void gdi_surface_bits(rdpUpdate* update, SURFACE_BITS_COMMAND* surface_bits_comm
 
 				gdi_image_convert(message->tiles[i]->data, gdi->tile->bitmap->data, 64, 64, 32, 32, gdi->clrconv);
 
+#ifdef DUMP_REMOTEFX_TILES
+				sprintf(tile_bitmap, "/tmp/rfx/tile_%d.bmp", tilenum++);
+				freerdp_bitmap_write(tile_bitmap, gdi->tile->bitmap->data, 64, 64, 32);
+#endif
+
 				gdi_BitBlt(gdi->primary->hdc, tx, ty, 64, 64, gdi->tile->hdc, 0, 0, GDI_SRCCOPY);
 
 			}

libfreerdp-utils/CMakeLists.txt

@@ -25,6 +25,7 @@ set(FREERDP_UTILS_SRCS
 	blob.c
 	dsp.c
 	event.c
+	bitmap.c
 	hexdump.c
 	list.c
 	load_plugin.c

libfreerdp-utils/bitmap.c

@@ -0,0 +1,105 @@
+/**
+ * FreeRDP: A Remote Desktop Protocol Client
+ * Bitmap File Format Utils
+ *
+ * Copyright 2011 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 <stdio.h>
+#include <string.h>
+
+#include <freerdp/types.h>
+
+#include <freerdp/utils/bitmap.h>
+
+typedef struct
+{
+	uint8 magic[2];
+} bmpfile_magic;
+
+typedef struct
+{
+	uint32 filesz;
+	uint16 creator1;
+	uint16 creator2;
+	uint32 bmp_offset;
+} bmpfile_header;
+
+typedef struct
+{
+	uint32 header_sz;
+	sint32 width;
+	sint32 height;
+	uint16 nplanes;
+	uint16 bitspp;
+	uint32 compress_type;
+	uint32 bmp_bytesz;
+	sint32 hres;
+	sint32 vres;
+	uint32 ncolors;
+	uint32 nimpcolors;
+} BITMAPINFOHEADER;
+
+void freerdp_bitmap_write(char* filename, void* data, int width, int height, int bpp)
+{
+	FILE* fp;
+	bmpfile_magic magic;
+	bmpfile_header header;
+	BITMAPINFOHEADER info_header;
+
+	fp = fopen(filename, "w+b");
+
+	if (fp == NULL)
+	{
+		printf("failed to open file %s\n", filename);
+		return;
+	}
+
+	magic.magic[0] = 'B';
+	magic.magic[1] = 'M';
+
+	header.creator1 = 0;
+	header.creator2 = 0;
+
+	header.bmp_offset =
+			sizeof(bmpfile_magic) +
+			sizeof(bmpfile_header) +
+			sizeof(BITMAPINFOHEADER);
+
+	info_header.bmp_bytesz = width * height * (bpp / 8);
+
+	header.filesz =
+		header.bmp_offset +
+		info_header.bmp_bytesz;
+
+	info_header.width = width;
+	info_header.height = (-1) * height;
+	info_header.nplanes = 1;
+	info_header.bitspp = bpp;
+	info_header.compress_type = 0;
+	info_header.hres = width;
+	info_header.vres = height;
+	info_header.ncolors = 0;
+	info_header.nimpcolors = 0;
+	info_header.header_sz = sizeof(BITMAPINFOHEADER);
+
+	fwrite((void*) &magic, sizeof(bmpfile_magic), 1, fp);
+	fwrite((void*) &header, sizeof(bmpfile_header), 1, fp);
+	fwrite((void*) &info_header, sizeof(BITMAPINFOHEADER), 1, fp);
+	fwrite((void*) data, info_header.bmp_bytesz, 1, fp);
+
+	fclose(fp);
+}
+