398 lines
12 KiB
C
398 lines
12 KiB
C
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#include "config.h"
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#include "client.h"
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#include "common/surface.h"
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#include "rdp.h"
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#include "rdp_bitmap.h"
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#include "rdp_color.h"
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#include "rdp_settings.h"
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#include <cairo/cairo.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 <winpr/wtypes.h>
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#include <stddef.h>
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guac_transfer_function guac_rdp_rop3_transfer_function(guac_client* client,
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int rop3) {
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/* Translate supported ROP3 opcodes into composite modes */
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switch (rop3) {
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/* "DSon" !(src | dest) */
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case 0x11: return GUAC_TRANSFER_BINARY_NOR;
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/* "DSna" !src & dest */
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case 0x22: return GUAC_TRANSFER_BINARY_NSRC_AND;
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/* "Sn" !src */
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case 0x33: return GUAC_TRANSFER_BINARY_NSRC;
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/* "SDna" (src & !dest) */
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case 0x44: return GUAC_TRANSFER_BINARY_NDEST_AND;
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/* "Dn" !dest */
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case 0x55: return GUAC_TRANSFER_BINARY_NDEST;
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/* "SRCINVERT" (src ^ dest) */
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case 0x66: return GUAC_TRANSFER_BINARY_XOR;
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/* "DSan" !(src & dest) */
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case 0x77: return GUAC_TRANSFER_BINARY_NAND;
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/* "SRCAND" (src & dest) */
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case 0x88: return GUAC_TRANSFER_BINARY_AND;
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/* "DSxn" !(src ^ dest) */
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case 0x99: return GUAC_TRANSFER_BINARY_XNOR;
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/* "MERGEPAINT" (!src | dest)*/
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case 0xBB: return GUAC_TRANSFER_BINARY_NSRC_OR;
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/* "SDno" (src | !dest) */
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case 0xDD: return GUAC_TRANSFER_BINARY_NDEST_OR;
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/* "SRCPAINT" (src | dest) */
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case 0xEE: return GUAC_TRANSFER_BINARY_OR;
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/* 0x00 = "BLACKNESS" (0) */
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/* 0xAA = "NOP" (dest) */
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/* 0xCC = "SRCCOPY" (src) */
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/* 0xFF = "WHITENESS" (1) */
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}
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/* Log warning if ROP3 opcode not supported */
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guac_client_log(client, GUAC_LOG_INFO, "guac_rdp_rop3_transfer_function: "
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"UNSUPPORTED opcode = 0x%02X", rop3);
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/* Default to BINARY_SRC */
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return GUAC_TRANSFER_BINARY_SRC;
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}
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BOOL guac_rdp_gdi_dstblt(rdpContext* context, const DSTBLT_ORDER* dstblt) {
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guac_client* client = ((rdp_freerdp_context*) context)->client;
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guac_common_surface* current_surface = ((guac_rdp_client*) client->data)->current_surface;
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int x = dstblt->nLeftRect;
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int y = dstblt->nTopRect;
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int w = dstblt->nWidth;
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int h = dstblt->nHeight;
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switch (dstblt->bRop) {
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/* Blackness */
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case 0:
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/* Send black rectangle */
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guac_common_surface_set(current_surface, x, y, w, h,
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0x00, 0x00, 0x00, 0xFF);
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break;
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/* DSTINVERT */
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case 0x55:
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guac_common_surface_transfer(current_surface, x, y, w, h,
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GUAC_TRANSFER_BINARY_NDEST, current_surface, x, y);
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break;
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/* NOP */
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case 0xAA:
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break;
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/* Whiteness */
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case 0xFF:
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guac_common_surface_set(current_surface, x, y, w, h,
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0xFF, 0xFF, 0xFF, 0xFF);
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break;
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/* Unsupported ROP3 */
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default:
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guac_client_log(client, GUAC_LOG_INFO,
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"guac_rdp_gdi_dstblt(rop3=0x%x)", dstblt->bRop);
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}
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return TRUE;
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}
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BOOL guac_rdp_gdi_patblt(rdpContext* context, PATBLT_ORDER* patblt) {
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/*
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* Note that this is not a full implementation of PATBLT. This is a
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* fallback implementation which only renders a solid block of background
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* color using the specified ROP3 operation, ignoring whatever brush
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* was actually specified.
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*
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* As libguac-client-rdp explicitly tells the server not to send PATBLT,
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* well-behaved RDP servers will not use this operation at all, while
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* others will at least have a fallback.
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*/
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/* Get client and current layer */
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guac_client* client = ((rdp_freerdp_context*) context)->client;
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guac_common_surface* current_surface =
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((guac_rdp_client*) client->data)->current_surface;
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int x = patblt->nLeftRect;
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int y = patblt->nTopRect;
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int w = patblt->nWidth;
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int h = patblt->nHeight;
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/*
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* Warn that rendering is a fallback, as the server should not be sending
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* this order.
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*/
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guac_client_log(client, GUAC_LOG_INFO, "Using fallback PATBLT (server is ignoring "
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"negotiated client capabilities)");
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/* Render rectangle based on ROP */
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switch (patblt->bRop) {
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/* If blackness, send black rectangle */
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case 0x00:
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guac_common_surface_set(current_surface, x, y, w, h,
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0x00, 0x00, 0x00, 0xFF);
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break;
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/* If NOP, do nothing */
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case 0xAA:
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break;
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/* If operation is just a copy, send foreground only */
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case 0xCC:
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case 0xF0:
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guac_common_surface_set(current_surface, x, y, w, h,
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(patblt->foreColor >> 16) & 0xFF,
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(patblt->foreColor >> 8 ) & 0xFF,
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(patblt->foreColor ) & 0xFF,
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0xFF);
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break;
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/* If whiteness, send white rectangle */
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case 0xFF:
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guac_common_surface_set(current_surface, x, y, w, h,
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0xFF, 0xFF, 0xFF, 0xFF);
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break;
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/* Otherwise, invert entire rect */
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default:
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guac_common_surface_transfer(current_surface, x, y, w, h,
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GUAC_TRANSFER_BINARY_NDEST, current_surface, x, y);
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}
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return TRUE;
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}
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BOOL guac_rdp_gdi_scrblt(rdpContext* context, const SCRBLT_ORDER* scrblt) {
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guac_client* client = ((rdp_freerdp_context*) context)->client;
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guac_common_surface* current_surface = ((guac_rdp_client*) client->data)->current_surface;
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int x = scrblt->nLeftRect;
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int y = scrblt->nTopRect;
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int w = scrblt->nWidth;
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int h = scrblt->nHeight;
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int x_src = scrblt->nXSrc;
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int y_src = scrblt->nYSrc;
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guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
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/* Copy screen rect to current surface */
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guac_common_surface_copy(rdp_client->display->default_surface,
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x_src, y_src, w, h, current_surface, x, y);
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return TRUE;
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}
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BOOL guac_rdp_gdi_memblt(rdpContext* context, MEMBLT_ORDER* memblt) {
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guac_client* client = ((rdp_freerdp_context*) context)->client;
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guac_common_surface* current_surface = ((guac_rdp_client*) client->data)->current_surface;
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guac_rdp_bitmap* bitmap = (guac_rdp_bitmap*) memblt->bitmap;
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int x = memblt->nLeftRect;
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int y = memblt->nTopRect;
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int w = memblt->nWidth;
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int h = memblt->nHeight;
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int x_src = memblt->nXSrc;
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int y_src = memblt->nYSrc;
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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(client, GUAC_LOG_INFO, "NULL bitmap found in memblt instruction.");
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return TRUE;
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}
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switch (memblt->bRop) {
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/* If blackness, send black rectangle */
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case 0x00:
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guac_common_surface_set(current_surface, x, y, w, h,
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0x00, 0x00, 0x00, 0xFF);
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break;
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/* If NOP, do nothing */
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case 0xAA:
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break;
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/* If operation is just SRC, simply copy */
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case 0xCC:
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/* If not cached, cache if necessary */
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if (bitmap->layer == NULL && bitmap->used >= 1)
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guac_rdp_cache_bitmap(context, memblt->bitmap);
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/* If not cached, send as PNG */
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if (bitmap->layer == NULL) {
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if (memblt->bitmap->data != NULL) {
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/* Create surface from image data */
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cairo_surface_t* surface = cairo_image_surface_create_for_data(
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memblt->bitmap->data + 4*(x_src + y_src*memblt->bitmap->width),
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CAIRO_FORMAT_RGB24, w, h, 4*memblt->bitmap->width);
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/* Send surface to buffer */
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guac_common_surface_draw(current_surface, x, y, surface);
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/* Free surface */
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cairo_surface_destroy(surface);
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}
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}
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/* Otherwise, copy */
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else
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guac_common_surface_copy(bitmap->layer->surface,
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x_src, y_src, w, h, current_surface, x, y);
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/* Increment usage counter */
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((guac_rdp_bitmap*) bitmap)->used++;
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break;
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/* If whiteness, send white rectangle */
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case 0xFF:
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guac_common_surface_set(current_surface, x, y, w, h,
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0xFF, 0xFF, 0xFF, 0xFF);
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break;
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/* Otherwise, use transfer */
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default:
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/* If not available as a surface, make available. */
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if (bitmap->layer == NULL)
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guac_rdp_cache_bitmap(context, memblt->bitmap);
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guac_common_surface_transfer(bitmap->layer->surface,
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x_src, y_src, w, h,
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guac_rdp_rop3_transfer_function(client, memblt->bRop),
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current_surface, x, y);
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/* Increment usage counter */
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((guac_rdp_bitmap*) bitmap)->used++;
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}
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return TRUE;
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}
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BOOL guac_rdp_gdi_opaquerect(rdpContext* context, const OPAQUE_RECT_ORDER* opaque_rect) {
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/* Get client data */
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guac_client* client = ((rdp_freerdp_context*) context)->client;
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UINT32 color = guac_rdp_convert_color(context, opaque_rect->color);
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guac_common_surface* current_surface = ((guac_rdp_client*) client->data)->current_surface;
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int x = opaque_rect->nLeftRect;
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int y = opaque_rect->nTopRect;
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int w = opaque_rect->nWidth;
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int h = opaque_rect->nHeight;
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guac_common_surface_set(current_surface, x, y, w, h,
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(color >> 16) & 0xFF,
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(color >> 8 ) & 0xFF,
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(color ) & 0xFF,
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0xFF);
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return TRUE;
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}
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BOOL guac_rdp_gdi_set_bounds(rdpContext* context, const rdpBounds* bounds) {
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guac_client* client = ((rdp_freerdp_context*) context)->client;
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guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
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/* If no bounds given, clear bounding rect */
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if (bounds == NULL)
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guac_common_surface_reset_clip(rdp_client->display->default_surface);
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/* Otherwise, set bounding rectangle */
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else
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guac_common_surface_clip(rdp_client->display->default_surface,
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bounds->left, bounds->top,
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bounds->right - bounds->left + 1,
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bounds->bottom - bounds->top + 1);
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return TRUE;
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}
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BOOL guac_rdp_gdi_end_paint(rdpContext* context) {
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/* IGNORE */
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return TRUE;
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}
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BOOL guac_rdp_gdi_desktop_resize(rdpContext* context) {
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guac_client* client = ((rdp_freerdp_context*) context)->client;
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guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
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guac_common_surface_resize(rdp_client->display->default_surface,
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guac_rdp_get_width(context->instance),
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guac_rdp_get_height(context->instance));
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guac_common_surface_reset_clip(rdp_client->display->default_surface);
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guac_client_log(client, GUAC_LOG_DEBUG, "Server resized display to %ix%i",
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guac_rdp_get_width(context->instance),
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guac_rdp_get_height(context->instance));
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return TRUE;
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}
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