FreeRDP/libfreerdp/cache/bitmap.c
2016-10-06 13:43:03 +02:00

358 lines
9.6 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Bitmap Cache V2
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <winpr/crt.h>
#include <freerdp/freerdp.h>
#include <freerdp/constants.h>
#include <winpr/stream.h>
#include <freerdp/log.h>
#include <freerdp/cache/bitmap.h>
#include <freerdp/gdi/bitmap.h>
#include "../gdi/gdi.h"
#define TAG FREERDP_TAG("cache.bitmap")
static rdpBitmap* bitmap_cache_get(rdpBitmapCache* bitmapCache, UINT32 id,
UINT32 index);
static void bitmap_cache_put(rdpBitmapCache* bitmap_cache, UINT32 id,
UINT32 index, rdpBitmap* bitmap);
static BOOL update_gdi_memblt(rdpContext* context,
MEMBLT_ORDER* memblt)
{
rdpBitmap* bitmap;
rdpCache* cache = context->cache;
if (memblt->cacheId == 0xFF)
bitmap = offscreen_cache_get(cache->offscreen, memblt->cacheIndex);
else
bitmap = bitmap_cache_get(cache->bitmap, (BYTE) memblt->cacheId,
memblt->cacheIndex);
/* XP-SP2 servers sometimes ask for cached bitmaps they've never defined. */
if (bitmap == NULL)
return TRUE;
memblt->bitmap = bitmap;
return IFCALLRESULT(TRUE, cache->bitmap->MemBlt, context, memblt);
}
static BOOL update_gdi_mem3blt(rdpContext* context,
MEM3BLT_ORDER* mem3blt)
{
BYTE style;
rdpBitmap* bitmap;
rdpCache* cache = context->cache;
rdpBrush* brush = &mem3blt->brush;
BOOL ret = TRUE;
if (mem3blt->cacheId == 0xFF)
bitmap = offscreen_cache_get(cache->offscreen, mem3blt->cacheIndex);
else
bitmap = bitmap_cache_get(cache->bitmap, (BYTE) mem3blt->cacheId,
mem3blt->cacheIndex);
/* XP-SP2 servers sometimes ask for cached bitmaps they've never defined. */
if (!bitmap)
return TRUE;
style = brush->style;
if (brush->style & CACHED_BRUSH)
{
brush->data = brush_cache_get(cache->brush, brush->index, &brush->bpp);
if (!brush->data)
return FALSE;
brush->style = 0x03;
}
mem3blt->bitmap = bitmap;
IFCALLRET(cache->bitmap->Mem3Blt, ret, context, mem3blt);
brush->style = style;
return ret;
}
static BOOL update_gdi_cache_bitmap(rdpContext* context,
const CACHE_BITMAP_ORDER* cacheBitmap)
{
rdpBitmap* bitmap;
rdpBitmap* prevBitmap;
rdpCache* cache = context->cache;
bitmap = Bitmap_Alloc(context);
if (!bitmap)
return FALSE;
Bitmap_SetDimensions(bitmap, cacheBitmap->bitmapWidth,
cacheBitmap->bitmapHeight);
if (!bitmap->Decompress(context, bitmap,
cacheBitmap->bitmapDataStream, cacheBitmap->bitmapWidth,
cacheBitmap->bitmapHeight,
cacheBitmap->bitmapBpp, cacheBitmap->bitmapLength,
cacheBitmap->compressed, RDP_CODEC_ID_NONE))
{
bitmap->Free(context, bitmap);
return FALSE;
}
if (!bitmap->New(context, bitmap))
{
bitmap->Free(context, bitmap);
return FALSE;
}
prevBitmap = bitmap_cache_get(cache->bitmap, cacheBitmap->cacheId,
cacheBitmap->cacheIndex);
if (prevBitmap != NULL)
prevBitmap->Free(context, prevBitmap);
bitmap_cache_put(cache->bitmap, cacheBitmap->cacheId, cacheBitmap->cacheIndex,
bitmap);
return TRUE;
}
static BOOL update_gdi_cache_bitmap_v2(rdpContext* context,
CACHE_BITMAP_V2_ORDER* cacheBitmapV2)
{
rdpBitmap* bitmap;
rdpBitmap* prevBitmap;
rdpCache* cache = context->cache;
rdpSettings* settings = context->settings;
bitmap = Bitmap_Alloc(context);
if (!bitmap)
return FALSE;
if (!cacheBitmapV2->bitmapBpp)
cacheBitmapV2->bitmapBpp = settings->ColorDepth;
if ((settings->ColorDepth == 15) && (cacheBitmapV2->bitmapBpp == 16))
cacheBitmapV2->bitmapBpp = settings->ColorDepth;
Bitmap_SetDimensions(bitmap, cacheBitmapV2->bitmapWidth,
cacheBitmapV2->bitmapHeight);
if (!bitmap->Decompress(context, bitmap,
cacheBitmapV2->bitmapDataStream,
cacheBitmapV2->bitmapWidth,
cacheBitmapV2->bitmapHeight,
cacheBitmapV2->bitmapBpp,
cacheBitmapV2->bitmapLength,
cacheBitmapV2->compressed,
RDP_CODEC_ID_NONE))
{
bitmap->Free(context, bitmap);
return FALSE;
}
prevBitmap = bitmap_cache_get(cache->bitmap, cacheBitmapV2->cacheId,
cacheBitmapV2->cacheIndex);
if (!bitmap->New(context, bitmap))
{
bitmap->Free(context, bitmap);
return FALSE;
}
if (prevBitmap)
prevBitmap->Free(context, prevBitmap);
bitmap_cache_put(cache->bitmap, cacheBitmapV2->cacheId,
cacheBitmapV2->cacheIndex, bitmap);
return TRUE;
}
static BOOL update_gdi_cache_bitmap_v3(rdpContext* context,
CACHE_BITMAP_V3_ORDER* cacheBitmapV3)
{
rdpBitmap* bitmap;
rdpBitmap* prevBitmap;
BOOL compressed = TRUE;
rdpCache* cache = context->cache;
rdpSettings* settings = context->settings;
BITMAP_DATA_EX* bitmapData = &cacheBitmapV3->bitmapData;
bitmap = Bitmap_Alloc(context);
if (!bitmap)
return FALSE;
if (!cacheBitmapV3->bpp)
cacheBitmapV3->bpp = settings->ColorDepth;
compressed = (bitmapData->codecID != RDP_CODEC_ID_NONE);
Bitmap_SetDimensions(bitmap, bitmapData->width, bitmapData->height);
if (!bitmap->Decompress(context, bitmap,
bitmapData->data, bitmapData->width, bitmapData->height,
bitmapData->bpp, bitmapData->length, compressed,
bitmapData->codecID))
{
bitmap->Free(context, bitmap);
return FALSE;
}
if (!bitmap->New(context, bitmap))
{
bitmap->Free(context, bitmap);
return FALSE;
}
prevBitmap = bitmap_cache_get(cache->bitmap, cacheBitmapV3->cacheId,
cacheBitmapV3->cacheIndex);
if (prevBitmap)
prevBitmap->Free(context, prevBitmap);
bitmap_cache_put(cache->bitmap, cacheBitmapV3->cacheId,
cacheBitmapV3->cacheIndex, bitmap);
return TRUE;
}
rdpBitmap* bitmap_cache_get(rdpBitmapCache* bitmapCache, UINT32 id,
UINT32 index)
{
rdpBitmap* bitmap;
if (id > bitmapCache->maxCells)
{
WLog_ERR(TAG, "get invalid bitmap cell id: %d", id);
return NULL;
}
if (index == BITMAP_CACHE_WAITING_LIST_INDEX)
{
index = bitmapCache->cells[id].number;
}
else if (index > bitmapCache->cells[id].number)
{
WLog_ERR(TAG, "get invalid bitmap index %d in cell id: %d", index, id);
return NULL;
}
bitmap = bitmapCache->cells[id].entries[index];
return bitmap;
}
void bitmap_cache_put(rdpBitmapCache* bitmapCache, UINT32 id, UINT32 index,
rdpBitmap* bitmap)
{
if (id > bitmapCache->maxCells)
{
WLog_ERR(TAG, "put invalid bitmap cell id: %d", id);
return;
}
if (index == BITMAP_CACHE_WAITING_LIST_INDEX)
{
index = bitmapCache->cells[id].number;
}
else if (index > bitmapCache->cells[id].number)
{
WLog_ERR(TAG, "put invalid bitmap index %d in cell id: %d", index, id);
return;
}
bitmapCache->cells[id].entries[index] = bitmap;
}
void bitmap_cache_register_callbacks(rdpUpdate* update)
{
rdpCache* cache = update->context->cache;
cache->bitmap->MemBlt = update->primary->MemBlt;
cache->bitmap->Mem3Blt = update->primary->Mem3Blt;
update->primary->MemBlt = update_gdi_memblt;
update->primary->Mem3Blt = update_gdi_mem3blt;
update->secondary->CacheBitmap = update_gdi_cache_bitmap;
update->secondary->CacheBitmapV2 = update_gdi_cache_bitmap_v2;
update->secondary->CacheBitmapV3 = update_gdi_cache_bitmap_v3;
update->BitmapUpdate = gdi_bitmap_update;
}
rdpBitmapCache* bitmap_cache_new(rdpSettings* settings)
{
int i;
rdpBitmapCache* bitmapCache;
bitmapCache = (rdpBitmapCache*) calloc(1, sizeof(rdpBitmapCache));
if (bitmapCache)
{
bitmapCache->settings = settings;
bitmapCache->update = ((freerdp*) settings->instance)->update;
bitmapCache->context = bitmapCache->update->context;
bitmapCache->maxCells = settings->BitmapCacheV2NumCells;
bitmapCache->cells = (BITMAP_V2_CELL*) calloc(bitmapCache->maxCells,
sizeof(BITMAP_V2_CELL));
if (!bitmapCache->cells)
{
free(bitmapCache);
return NULL;
}
for (i = 0; i < (int) bitmapCache->maxCells; i++)
{
bitmapCache->cells[i].number = settings->BitmapCacheV2CellInfo[i].numEntries;
/* allocate an extra entry for BITMAP_CACHE_WAITING_LIST_INDEX */
bitmapCache->cells[i].entries = (rdpBitmap**) calloc((
bitmapCache->cells[i].number + 1), sizeof(rdpBitmap*));
}
}
return bitmapCache;
}
void bitmap_cache_free(rdpBitmapCache* bitmapCache)
{
int i, j;
rdpBitmap* bitmap;
if (bitmapCache)
{
for (i = 0; i < (int) bitmapCache->maxCells; i++)
{
for (j = 0; j < (int) bitmapCache->cells[i].number + 1; j++)
{
bitmap = bitmapCache->cells[i].entries[j];
if (bitmap)
bitmap->Free(bitmapCache->context, bitmap);
}
free(bitmapCache->cells[i].entries);
}
free(bitmapCache->cells);
free(bitmapCache);
}
}