FreeRDP/libfreerdp/cache/bitmap.c

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/**
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* 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 <freerdp/freerdp.h>
#include <freerdp/constants.h>
#include <freerdp/utils/stream.h>
#include <freerdp/utils/memory.h>
#include <freerdp/cache/bitmap.h>
void 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);
memblt->bitmap = bitmap;
IFCALL(cache->bitmap->MemBlt, context, memblt);
}
void update_gdi_mem3blt(rdpContext* context, MEM3BLT_ORDER* mem3blt)
{
BYTE style;
rdpBitmap* bitmap;
rdpCache* cache = context->cache;
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rdpBrush* brush = &mem3blt->brush;
if (mem3blt->cacheId == 0xFF)
bitmap = offscreen_cache_get(cache->offscreen, mem3blt->cacheIndex);
else
bitmap = bitmap_cache_get(cache->bitmap, (BYTE) mem3blt->cacheId, mem3blt->cacheIndex);
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style = brush->style;
if (brush->style & CACHED_BRUSH)
{
brush->data = brush_cache_get(cache->brush, brush->index, &brush->bpp);
brush->style = 0x03;
}
mem3blt->bitmap = bitmap;
IFCALL(cache->bitmap->Mem3Blt, context, mem3blt);
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brush->style = style;
}
void update_gdi_cache_bitmap(rdpContext* context, CACHE_BITMAP_ORDER* cache_bitmap)
{
rdpBitmap* bitmap;
rdpBitmap* prevBitmap;
rdpCache* cache = context->cache;
bitmap = Bitmap_Alloc(context);
Bitmap_SetDimensions(context, bitmap, cache_bitmap->bitmapWidth, cache_bitmap->bitmapHeight);
bitmap->Decompress(context, bitmap,
cache_bitmap->bitmapDataStream, cache_bitmap->bitmapWidth, cache_bitmap->bitmapHeight,
cache_bitmap->bitmapBpp, cache_bitmap->bitmapLength,
cache_bitmap->compressed, CODEC_ID_NONE);
bitmap->New(context, bitmap);
prevBitmap = bitmap_cache_get(cache->bitmap, cache_bitmap->cacheId, cache_bitmap->cacheIndex);
if (prevBitmap != NULL)
Bitmap_Free(context, prevBitmap);
bitmap_cache_put(cache->bitmap, cache_bitmap->cacheId, cache_bitmap->cacheIndex, bitmap);
}
void update_gdi_cache_bitmap_v2(rdpContext* context, CACHE_BITMAP_V2_ORDER* cache_bitmap_v2)
{
rdpBitmap* bitmap;
rdpBitmap* prevBitmap;
rdpCache* cache = context->cache;
bitmap = Bitmap_Alloc(context);
Bitmap_SetDimensions(context, bitmap, cache_bitmap_v2->bitmapWidth, cache_bitmap_v2->bitmapHeight);
if (cache_bitmap_v2->bitmapBpp == 0)
{
/* Workaround for Windows 8 bug where bitmapBpp is not set */
cache_bitmap_v2->bitmapBpp = context->instance->settings->color_depth;
}
bitmap->Decompress(context, bitmap,
cache_bitmap_v2->bitmapDataStream, cache_bitmap_v2->bitmapWidth, cache_bitmap_v2->bitmapHeight,
cache_bitmap_v2->bitmapBpp, cache_bitmap_v2->bitmapLength,
cache_bitmap_v2->compressed, CODEC_ID_NONE);
bitmap->New(context, bitmap);
prevBitmap = bitmap_cache_get(cache->bitmap, cache_bitmap_v2->cacheId, cache_bitmap_v2->cacheIndex);
if (prevBitmap != NULL)
Bitmap_Free(context, prevBitmap);
bitmap_cache_put(cache->bitmap, cache_bitmap_v2->cacheId, cache_bitmap_v2->cacheIndex, bitmap);
}
void update_gdi_cache_bitmap_v3(rdpContext* context, CACHE_BITMAP_V3_ORDER* cache_bitmap_v3)
{
rdpBitmap* bitmap;
rdpBitmap* prevBitmap;
rdpCache* cache = context->cache;
BITMAP_DATA_EX* bitmapData = &cache_bitmap_v3->bitmapData;
bitmap = Bitmap_Alloc(context);
Bitmap_SetDimensions(context, bitmap, bitmapData->width, bitmapData->height);
if (cache_bitmap_v3->bitmapData.bpp == 0)
{
/* Workaround for Windows 8 bug where bitmapBpp is not set */
cache_bitmap_v3->bitmapData.bpp = context->instance->settings->color_depth;
}
bitmap->Decompress(context, bitmap,
bitmapData->data, bitmap->width, bitmap->height,
bitmapData->bpp, bitmapData->length, TRUE,
bitmapData->codecID);
bitmap->New(context, bitmap);
prevBitmap = bitmap_cache_get(cache->bitmap, cache_bitmap_v3->cacheId, cache_bitmap_v3->cacheIndex);
if (prevBitmap != NULL)
Bitmap_Free(context, prevBitmap);
bitmap_cache_put(cache->bitmap, cache_bitmap_v3->cacheId, cache_bitmap_v3->cacheIndex, bitmap);
}
void update_gdi_bitmap_update(rdpContext* context, BITMAP_UPDATE* bitmap_update)
{
int i;
rdpBitmap* bitmap;
BITMAP_DATA* bitmap_data;
BOOL reused = TRUE;
rdpCache* cache = context->cache;
if (cache->bitmap->bitmap == NULL)
{
cache->bitmap->bitmap = Bitmap_Alloc(context);
cache->bitmap->bitmap->ephemeral = TRUE;
reused = FALSE;
}
bitmap = cache->bitmap->bitmap;
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for (i = 0; i < (int) bitmap_update->number; i++)
{
bitmap_data = &bitmap_update->rectangles[i];
bitmap->bpp = bitmap_data->bitsPerPixel;
bitmap->length = bitmap_data->bitmapLength;
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bitmap->compressed = bitmap_data->compressed;
Bitmap_SetRectangle(context, bitmap,
bitmap_data->destLeft, bitmap_data->destTop,
bitmap_data->destRight, bitmap_data->destBottom);
Bitmap_SetDimensions(context, bitmap, bitmap_data->width, bitmap_data->height);
bitmap->Decompress(context, bitmap,
bitmap_data->bitmapDataStream, bitmap_data->width, bitmap_data->height,
bitmap_data->bitsPerPixel, bitmap_data->bitmapLength,
bitmap_data->compressed, CODEC_ID_NONE);
if (reused)
bitmap->Free(context, bitmap);
else
reused = TRUE;
bitmap->New(context, bitmap);
bitmap->Paint(context, bitmap);
}
}
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rdpBitmap* bitmap_cache_get(rdpBitmapCache* bitmap_cache, UINT32 id, UINT32 index)
{
rdpBitmap* bitmap;
if (id > bitmap_cache->maxCells)
{
printf("get invalid bitmap cell id: %d\n", id);
return NULL;
}
if (index == BITMAP_CACHE_WAITING_LIST_INDEX)
{
index = bitmap_cache->cells[id].number;
}
else if (index > bitmap_cache->cells[id].number)
{
printf("get invalid bitmap index %d in cell id: %d\n", index, id);
return NULL;
}
bitmap = bitmap_cache->cells[id].entries[index];
return bitmap;
}
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void bitmap_cache_put(rdpBitmapCache* bitmap_cache, UINT32 id, UINT32 index, rdpBitmap* bitmap)
{
if (id > bitmap_cache->maxCells)
{
printf("put invalid bitmap cell id: %d\n", id);
return;
}
if (index == BITMAP_CACHE_WAITING_LIST_INDEX)
{
index = bitmap_cache->cells[id].number;
}
else if (index > bitmap_cache->cells[id].number)
{
printf("put invalid bitmap index %d in cell id: %d\n", index, id);
return;
}
bitmap_cache->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 = update_gdi_bitmap_update;
}
rdpBitmapCache* bitmap_cache_new(rdpSettings* settings)
{
int i;
rdpBitmapCache* bitmap_cache;
bitmap_cache = (rdpBitmapCache*) xzalloc(sizeof(rdpBitmapCache));
if (bitmap_cache != NULL)
{
bitmap_cache->settings = settings;
bitmap_cache->update = ((freerdp*) settings->instance)->update;
bitmap_cache->context = bitmap_cache->update->context;
bitmap_cache->maxCells = settings->bitmapCacheV2NumCells;
bitmap_cache->cells = (BITMAP_V2_CELL*) xzalloc(sizeof(BITMAP_V2_CELL) * bitmap_cache->maxCells);
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for (i = 0; i < (int) bitmap_cache->maxCells; i++)
{
bitmap_cache->cells[i].number = settings->bitmapCacheV2CellInfo[i].numEntries;
/* allocate an extra entry for BITMAP_CACHE_WAITING_LIST_INDEX */
bitmap_cache->cells[i].entries = (rdpBitmap**) xzalloc(sizeof(rdpBitmap*) * (bitmap_cache->cells[i].number + 1));
}
}
return bitmap_cache;
}
void bitmap_cache_free(rdpBitmapCache* bitmap_cache)
{
int i, j;
rdpBitmap* bitmap;
if (bitmap_cache != NULL)
{
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for (i = 0; i < (int) bitmap_cache->maxCells; i++)
{
for (j = 0; j < (int) bitmap_cache->cells[i].number + 1; j++)
{
bitmap = bitmap_cache->cells[i].entries[j];
if (bitmap != NULL)
{
Bitmap_Free(bitmap_cache->context, bitmap);
}
}
free(bitmap_cache->cells[i].entries);
}
if (bitmap_cache->bitmap != NULL)
Bitmap_Free(bitmap_cache->context, bitmap_cache->bitmap);
free(bitmap_cache->cells);
free(bitmap_cache);
}
}