/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 "bitmap.h" #include "common/display.h" #include "common/surface.h" #include "config.h" #include "rdp.h" #include #include #include #include #include #include #include void guac_rdp_cache_bitmap(rdpContext* context, rdpBitmap* bitmap) { guac_client* client = ((rdp_freerdp_context*) context)->client; guac_rdp_client* rdp_client = (guac_rdp_client*) client->data; /* Allocate buffer */ guac_common_display_layer* buffer = guac_common_display_alloc_buffer( rdp_client->display, bitmap->width, bitmap->height); /* Cache image data if present */ if (bitmap->data != NULL) { /* Create surface from image data */ cairo_surface_t* image = cairo_image_surface_create_for_data( bitmap->data, CAIRO_FORMAT_RGB24, bitmap->width, bitmap->height, 4*bitmap->width); /* Send surface to buffer */ guac_common_surface_draw(buffer->surface, 0, 0, image); /* Free surface */ cairo_surface_destroy(image); } /* Store buffer reference in bitmap */ ((guac_rdp_bitmap*) bitmap)->layer = buffer; } BOOL guac_rdp_bitmap_new(rdpContext* context, rdpBitmap* bitmap) { /* No corresponding surface yet - caching is deferred. */ ((guac_rdp_bitmap*) bitmap)->layer = NULL; /* Start at zero usage */ ((guac_rdp_bitmap*) bitmap)->used = 0; return TRUE; } BOOL guac_rdp_bitmap_paint(rdpContext* context, rdpBitmap* bitmap) { guac_client* client = ((rdp_freerdp_context*) context)->client; guac_rdp_client* rdp_client = (guac_rdp_client*) client->data; guac_common_display_layer* buffer = ((guac_rdp_bitmap*) bitmap)->layer; int width = bitmap->right - bitmap->left + 1; int height = bitmap->bottom - bitmap->top + 1; /* If not cached, cache if necessary */ if (buffer == NULL && ((guac_rdp_bitmap*) bitmap)->used >= 1) guac_rdp_cache_bitmap(context, bitmap); /* If cached, retrieve from cache */ if (buffer != NULL) guac_common_surface_copy(buffer->surface, 0, 0, width, height, rdp_client->display->default_surface, bitmap->left, bitmap->top); /* Otherwise, draw with stored image data */ else if (bitmap->data != NULL) { /* Create surface from image data */ cairo_surface_t* image = cairo_image_surface_create_for_data( bitmap->data, CAIRO_FORMAT_RGB24, width, height, 4*bitmap->width); /* Draw image on default surface */ guac_common_surface_draw(rdp_client->display->default_surface, bitmap->left, bitmap->top, image); /* Free surface */ cairo_surface_destroy(image); } /* Increment usage counter */ ((guac_rdp_bitmap*) bitmap)->used++; return TRUE; } void guac_rdp_bitmap_free(rdpContext* context, rdpBitmap* bitmap) { guac_client* client = ((rdp_freerdp_context*) context)->client; guac_rdp_client* rdp_client = (guac_rdp_client*) client->data; guac_common_display_layer* buffer = ((guac_rdp_bitmap*) bitmap)->layer; /* If cached, free buffer */ if (buffer != NULL) guac_common_display_free_buffer(rdp_client->display, buffer); #ifndef FREERDP_BITMAP_FREE_FREES_BITMAP /* NOTE: Except in FreeRDP 2.0.0-rc0 and earlier, FreeRDP-allocated memory * for the rdpBitmap will NOT be automatically released after this free * handler is invoked, thus we must do so manually here */ _aligned_free(bitmap->data); free(bitmap); #endif } BOOL guac_rdp_bitmap_setsurface(rdpContext* context, rdpBitmap* bitmap, BOOL primary) { guac_client* client = ((rdp_freerdp_context*) context)->client; guac_rdp_client* rdp_client = (guac_rdp_client*) client->data; if (primary) rdp_client->current_surface = rdp_client->display->default_surface; else { /* Make sure that the recieved bitmap is not NULL before processing */ if (bitmap == NULL) { guac_client_log(client, GUAC_LOG_INFO, "NULL bitmap found in bitmap_setsurface instruction."); return TRUE; } /* If not available as a surface, make available. */ if (((guac_rdp_bitmap*) bitmap)->layer == NULL) guac_rdp_cache_bitmap(context, bitmap); rdp_client->current_surface = ((guac_rdp_bitmap*) bitmap)->layer->surface; } return TRUE; }