219 lines
7.0 KiB
C
219 lines
7.0 KiB
C
/*
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* Copyright (C) 2013 Glyptodon LLC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "config.h"
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#include "client.h"
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#include "guac_surface.h"
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#include "rdp_bitmap.h"
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <cairo/cairo.h>
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#include <freerdp/codec/bitmap.h>
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#include <freerdp/codec/color.h>
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#include <freerdp/freerdp.h>
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#include <guacamole/client.h>
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#include <guacamole/protocol.h>
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#include <guacamole/socket.h>
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#ifdef ENABLE_WINPR
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#include <winpr/wtypes.h>
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#else
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#include "compat/winpr-wtypes.h"
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#endif
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void guac_rdp_cache_bitmap(rdpContext* context, rdpBitmap* bitmap) {
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guac_client* client = ((rdp_freerdp_context*) context)->client;
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guac_socket* socket = client->socket;
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/* Allocate surface */
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guac_layer* buffer = guac_client_alloc_buffer(client);
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guac_common_surface* surface = guac_common_surface_alloc(socket, buffer, bitmap->width, bitmap->height);
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/* Cache image data if present */
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if (bitmap->data != NULL) {
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/* Create surface from image data */
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cairo_surface_t* image = cairo_image_surface_create_for_data(
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bitmap->data, CAIRO_FORMAT_RGB24,
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bitmap->width, bitmap->height, 4*bitmap->width);
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/* Send surface to buffer */
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guac_common_surface_draw(surface, 0, 0, image);
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/* Free surface */
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cairo_surface_destroy(image);
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}
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/* Store buffer reference in bitmap */
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((guac_rdp_bitmap*) bitmap)->buffer = buffer;
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((guac_rdp_bitmap*) bitmap)->surface = surface;
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}
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void guac_rdp_bitmap_new(rdpContext* context, rdpBitmap* bitmap) {
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/* Convert image data if present */
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if (bitmap->data != NULL) {
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/* Get client data */
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guac_client* client = ((rdp_freerdp_context*) context)->client;
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rdp_guac_client_data* client_data = (rdp_guac_client_data*) client->data;
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/* Convert image data to 32-bit RGB */
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unsigned char* image_buffer = freerdp_image_convert(bitmap->data, NULL,
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bitmap->width, bitmap->height,
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client_data->settings.color_depth,
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32, ((rdp_freerdp_context*) context)->clrconv);
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/* Free existing image, if any */
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if (image_buffer != bitmap->data)
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free(bitmap->data);
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/* Store converted image in bitmap */
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bitmap->data = image_buffer;
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}
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/* No corresponding surface yet - caching is deferred. */
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((guac_rdp_bitmap*) bitmap)->buffer = NULL;
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((guac_rdp_bitmap*) bitmap)->surface = NULL;
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/* Start at zero usage */
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((guac_rdp_bitmap*) bitmap)->used = 0;
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}
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void guac_rdp_bitmap_paint(rdpContext* context, rdpBitmap* bitmap) {
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guac_client* client = ((rdp_freerdp_context*) context)->client;
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rdp_guac_client_data* client_data = (rdp_guac_client_data*) client->data;
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guac_common_surface* surface = ((guac_rdp_bitmap*) bitmap)->surface;
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int width = bitmap->right - bitmap->left + 1;
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int height = bitmap->bottom - bitmap->top + 1;
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/* If not cached, cache if necessary */
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if (surface == NULL && ((guac_rdp_bitmap*) bitmap)->used >= 1)
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guac_rdp_cache_bitmap(context, bitmap);
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/* If cached, retrieve from cache */
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if (surface != NULL)
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guac_common_surface_copy(surface, 0, 0, width, height,
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client_data->default_surface, bitmap->left, bitmap->top);
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/* Otherwise, draw with stored image data */
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else if (bitmap->data != NULL) {
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/* Create surface from image data */
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cairo_surface_t* image = cairo_image_surface_create_for_data(
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bitmap->data, CAIRO_FORMAT_RGB24,
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width, height, 4*bitmap->width);
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/* Draw image on default surface */
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guac_common_surface_draw(client_data->default_surface, bitmap->left, bitmap->top, image);
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/* Free surface */
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cairo_surface_destroy(image);
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}
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/* Increment usage counter */
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((guac_rdp_bitmap*) bitmap)->used++;
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}
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void guac_rdp_bitmap_free(rdpContext* context, rdpBitmap* bitmap) {
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guac_client* client = ((rdp_freerdp_context*) context)->client;
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guac_layer* buffer = ((guac_rdp_bitmap*) bitmap)->buffer;
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guac_common_surface* surface = ((guac_rdp_bitmap*) bitmap)->surface;
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/* If cached, free surface */
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if (surface != NULL)
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guac_common_surface_free(surface);
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/* If cached, free buffer */
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if (buffer != NULL)
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guac_client_free_buffer(client, buffer);
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}
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void guac_rdp_bitmap_setsurface(rdpContext* context, rdpBitmap* bitmap, BOOL primary) {
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guac_client* client = ((rdp_freerdp_context*) context)->client;
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rdp_guac_client_data* client_data = (rdp_guac_client_data*) client->data;
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if (primary)
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client_data->current_surface = client_data->default_surface;
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else {
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/* Make sure that the recieved bitmap is not NULL before processing */
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if (bitmap == NULL) {
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guac_client_log_info(client, "NULL bitmap found in bitmap_setsurface instruction.");
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return;
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}
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/* If not available as a surface, make available. */
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if (((guac_rdp_bitmap*) bitmap)->surface == NULL)
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guac_rdp_cache_bitmap(context, bitmap);
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client_data->current_surface = ((guac_rdp_bitmap*) bitmap)->surface;
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}
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}
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#ifdef LEGACY_RDPBITMAP
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void guac_rdp_bitmap_decompress(rdpContext* context, rdpBitmap* bitmap, UINT8* data,
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int width, int height, int bpp, int length, BOOL compressed) {
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#else
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void guac_rdp_bitmap_decompress(rdpContext* context, rdpBitmap* bitmap, UINT8* data,
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int width, int height, int bpp, int length, BOOL compressed, int codec_id) {
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#endif
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int size = width * height * (bpp + 7) / 8;
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if (bitmap->data == NULL)
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bitmap->data = (UINT8*) malloc(size);
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else
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bitmap->data = (UINT8*) realloc(bitmap->data, size);
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if (compressed)
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bitmap_decompress(data, bitmap->data, width, height, length, bpp, bpp);
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else
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freerdp_image_flip(data, bitmap->data, width, height, bpp);
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bitmap->compressed = FALSE;
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bitmap->length = size;
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bitmap->bpp = bpp;
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}
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