149 lines
3.9 KiB
C
149 lines
3.9 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Client
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* Offscreen Bitmap Cache
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*
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* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <freerdp/utils/stream.h>
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#include <freerdp/utils/memory.h>
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#include <freerdp/cache/offscreen.h>
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void update_gdi_create_offscreen_bitmap(rdpUpdate* update, CREATE_OFFSCREEN_BITMAP_ORDER* create_offscreen_bitmap)
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{
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rdpBitmap* bitmap;
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rdpBitmap* prevBitmap;
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uint32 size = sizeof(rdpBitmap);
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rdpCache* cache = (rdpCache*) update->cache;
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IFCALL(cache->offscreen->OffscreenBitmapSize, update, &size);
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bitmap = (rdpBitmap*) xzalloc(size);
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bitmap->width = create_offscreen_bitmap->cx;
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bitmap->height = create_offscreen_bitmap->cy;
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IFCALL(cache->offscreen->OffscreenBitmapNew, update, bitmap);
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prevBitmap = offscreen_cache_get(cache->offscreen, create_offscreen_bitmap->id);
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if (prevBitmap != NULL)
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{
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IFCALL(cache->offscreen->OffscreenBitmapFree, update, prevBitmap);
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bitmap_free(prevBitmap);
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}
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offscreen_cache_put(cache->offscreen, create_offscreen_bitmap->id, bitmap);
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}
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void update_gdi_switch_surface(rdpUpdate* update, SWITCH_SURFACE_ORDER* switch_surface)
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{
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rdpCache* cache = (rdpCache*) update->cache;
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if (switch_surface->bitmapId == SCREEN_BITMAP_SURFACE)
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{
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IFCALL(cache->offscreen->SetSurface, update, NULL, True);
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}
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else
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{
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rdpBitmap* bitmap;
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bitmap = offscreen_cache_get(cache->offscreen, switch_surface->bitmapId);
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IFCALL(cache->offscreen->SetSurface, update, bitmap, False);
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}
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}
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rdpBitmap* offscreen_cache_get(rdpOffscreenCache* offscreen_cache, uint16 index)
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{
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rdpBitmap* bitmap;
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if (index > offscreen_cache->maxEntries)
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{
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printf("invalid offscreen bitmap index: 0x%04X\n", index);
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return NULL;
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}
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bitmap = offscreen_cache->entries[index];
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if (bitmap == NULL)
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{
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printf("invalid offscreen bitmap at index: 0x%04X\n", index);
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return NULL;
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}
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return bitmap;
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}
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void offscreen_cache_put(rdpOffscreenCache* offscreen, uint16 index, rdpBitmap* bitmap)
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{
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if (index > offscreen->maxEntries)
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{
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printf("invalid offscreen bitmap index: 0x%04X\n", index);
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return;
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}
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offscreen->entries[index] = bitmap;
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}
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void offscreen_cache_register_callbacks(rdpUpdate* update)
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{
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update->CreateOffscreenBitmap = update_gdi_create_offscreen_bitmap;
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update->SwitchSurface = update_gdi_switch_surface;
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}
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rdpOffscreenCache* offscreen_cache_new(rdpSettings* settings)
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{
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rdpOffscreenCache* offscreen_cache;
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offscreen_cache = (rdpOffscreenCache*) xzalloc(sizeof(rdpOffscreenCache));
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if (offscreen_cache != NULL)
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{
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offscreen_cache->settings = settings;
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offscreen_cache->update = ((freerdp*) settings->instance)->update;
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offscreen_cache->maxSize = 7680;
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offscreen_cache->maxEntries = 100;
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settings->offscreen_bitmap_cache_size = offscreen_cache->maxSize;
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settings->offscreen_bitmap_cache_entries = offscreen_cache->maxEntries;
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offscreen_cache->entries = (rdpBitmap**) xzalloc(sizeof(rdpBitmap*) * offscreen_cache->maxEntries);
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}
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return offscreen_cache;
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}
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void offscreen_cache_free(rdpOffscreenCache* offscreen_cache)
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{
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int i;
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rdpBitmap* bitmap;
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if (offscreen_cache != NULL)
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{
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for (i = 0; i < offscreen_cache->maxEntries; i++)
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{
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bitmap = offscreen_cache->entries[i];
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if (bitmap != NULL)
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{
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IFCALL(offscreen_cache->OffscreenBitmapFree, offscreen_cache->update, bitmap);
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bitmap_free(bitmap);
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}
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}
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xfree(offscreen_cache->entries);
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xfree(offscreen_cache);
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}
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}
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