void guac_rdp_gdi_dstblt(rdpContext* context, DSTBLT_ORDER* dstblt) {
guac_client* client = ((rdp_freerdp_context*) context)->client;
const guac_layer* current_layer = ((rdp_guac_client_data*) client->data)->current_surface;
rdp_guac_client_data* data = (rdp_guac_client_data*) client->data;
pthread_mutex_lock(&(data->update_lock));
switch (dstblt->bRop) {
/* Blackness */
case 0:
/* Send black rectangle */
guac_protocol_send_rect(client->socket, current_layer,
dstblt->nLeftRect, dstblt->nTopRect,
dstblt->nWidth, dstblt->nHeight);
guac_protocol_send_cfill(client->socket,
GUAC_COMP_OVER, current_layer,
0, 0, 0, 255);
break;
/* Unsupported ROP3 */
default:
guac_client_log_info(client,
"guac_rdp_gdi_dstblt(rop3=%i)", dstblt->bRop);
}
pthread_mutex_unlock(&(data->update_lock));
}
void guac_rdp_gdi_opaquerect(rdpContext* context, OPAQUE_RECT_ORDER* opaque_rect) {
guac_client* client = ((rdp_freerdp_context*) context)->client;
uint32 color = freerdp_color_convert_var(opaque_rect->color,
context->instance->settings->color_depth, 32,
((rdp_freerdp_context*) context)->clrconv);
const guac_layer* current_layer = ((rdp_guac_client_data*) client->data)->current_surface;
rdp_guac_client_data* data = (rdp_guac_client_data*) client->data;
pthread_mutex_lock(&(data->update_lock));
int x = opaque_rect->nLeftRect;
int y = opaque_rect->nTopRect;
int w = opaque_rect->nWidth;
int h = opaque_rect->nHeight;
/* Clip operation to bounds */
__guac_rdp_clip_rect(data, &x, &y, &w, &h);
guac_protocol_send_rect(client->socket, current_layer, x, y, w, h);
guac_protocol_send_cfill(client->socket,
GUAC_COMP_OVER, current_layer,
(color >> 16) & 0xFF,
(color >> 8 ) & 0xFF,
(color ) & 0xFF,
255);
pthread_mutex_unlock(&(data->update_lock));
}
void guac_rdp_gdi_opaquerect(rdpContext* context, OPAQUE_RECT_ORDER* opaque_rect) {
guac_client* client = ((rdp_freerdp_context*) context)->client;
UINT32 color = freerdp_color_convert_var(opaque_rect->color,
context->instance->settings->ColorDepth, 32,
((rdp_freerdp_context*) context)->clrconv);
const guac_layer* current_layer = ((rdp_guac_client_data*) client->data)->current_surface;
rdp_guac_client_data* data = (rdp_guac_client_data*) client->data;
pthread_mutex_lock(&(data->update_lock));
guac_protocol_send_rect(client->socket, current_layer,
opaque_rect->nLeftRect, opaque_rect->nTopRect,
opaque_rect->nWidth, opaque_rect->nHeight);
guac_protocol_send_cfill(client->socket,
GUAC_COMP_OVER, current_layer,
(color >> 16) & 0xFF,
(color >> 8 ) & 0xFF,
(color ) & 0xFF,
255);
pthread_mutex_unlock(&(data->update_lock));
}
void guac_rdp_gdi_set_bounds(rdpContext* context, rdpBounds* bounds) {
guac_client* client = ((rdp_freerdp_context*) context)->client;
const guac_layer* current_layer = ((rdp_guac_client_data*) client->data)->current_surface;
/* Reset clip */
guac_protocol_send_reset(client->socket, current_layer);
/* Set clip if specified */
if (bounds != NULL) {
guac_protocol_send_rect(client->socket, current_layer,
bounds->left, bounds->top,
bounds->right - bounds->left + 1,
bounds->bottom - bounds->top + 1);
guac_protocol_send_clip(client->socket, current_layer);
}
/* If no bounds given, clear bounding rect */
if (bounds == NULL)
((rdp_guac_client_data*)client->data)->bounded = false;
/* Otherwise, set bounding rectangle */
else {
((rdp_guac_client_data*)client->data)->bounded = true;
((rdp_guac_client_data*)client->data)->bounds_left = bounds->left;
((rdp_guac_client_data*)client->data)->bounds_top = bounds->top;
((rdp_guac_client_data*)client->data)->bounds_right = bounds->right;
((rdp_guac_client_data*)client->data)->bounds_bottom = bounds->bottom;
}
}
/**
* Clears the currently-selected region, removing the highlight.
*/
static void __guac_terminal_display_clear_select(guac_terminal_display* display) {
guac_socket* socket = display->client->socket;
guac_layer* select_layer = display->select_layer;
guac_protocol_send_rect(socket, select_layer, 0, 0, 1, 1);
guac_protocol_send_cfill(socket, GUAC_COMP_SRC, select_layer,
0x00, 0x00, 0x00, 0x00);
guac_client_end_frame(display->client);
guac_socket_flush(socket);
/* Text is no longer selected */
display->text_selected =
display->selection_committed = false;
}
void guac_terminal_display_clear_select(guac_terminal_display* display) {
/* Do nothing if nothing is selected */
if (!display->text_selected)
return;
guac_socket* socket = display->client->socket;
guac_layer* select_layer = display->select_layer;
guac_protocol_send_rect(socket, select_layer, 0, 0, 1, 1);
guac_protocol_send_cfill(socket, GUAC_COMP_SRC, select_layer,
0x00, 0x00, 0x00, 0x00);
/* Text is no longer selected */
display->text_selected = false;
}
guac_ssh_cursor* guac_ssh_create_blank(guac_client* client) {
guac_socket* socket = client->socket;
guac_ssh_cursor* cursor = guac_ssh_cursor_alloc(client);
/* Set buffer to a single 1x1 transparent rectangle */
guac_protocol_send_rect(socket, cursor->buffer, 0, 0, 1, 1);
guac_protocol_send_cfill(socket, GUAC_COMP_SRC, cursor->buffer,
0x00, 0x00, 0x00, 0x00);
/* Initialize cursor properties */
cursor->width = 1;
cursor->height = 1;
cursor->hotspot_x = 0;
cursor->hotspot_y = 0;
return cursor;
}
/**
* Resizes and redraws the handle layer of the scrollbar according to the given
* scrollbar render state, sending any necessary Guacamole instructions over
* the given socket. The handle is the portion of the scrollbar that indicates
* the current scroll value and which the user can click and drag to change the
* value.
*
* @param scrollbar
* The scrollbar associated with the handle being resized and redrawn.
*
* @param state
* The guac_terminal_scrollbar_render_state describing the new scrollbar
* handle size and appearance.
*
* @param socket
* The guac_socket over which any instructions necessary to perform the
* render operation should be sent.
*/
static void guac_terminal_scrollbar_draw_handle(
guac_terminal_scrollbar* scrollbar,
guac_terminal_scrollbar_render_state* state,
guac_socket* socket) {
/* Set handle size */
guac_protocol_send_size(socket, scrollbar->handle,
state->handle_width,
state->handle_height);
/* Fill handle with solid color */
guac_protocol_send_rect(socket, scrollbar->handle, 0, 0,
state->handle_width,
state->handle_height);
guac_protocol_send_cfill(socket, GUAC_COMP_SRC, scrollbar->handle,
0xA0, 0xA0, 0xA0, 0x8F);
}
/**
* Resizes and redraws the main scrollbar layer according to the given
* scrollbar render state, sending any necessary Guacamole instructions over
* the given socket.
*
* @param scrollbar
* The scrollbar to resize and redraw.
*
* @param state
* The guac_terminal_scrollbar_render_state describing the new scrollbar
* size and appearance.
*
* @param socket
* The guac_socket over which any instructions necessary to perform the
* render operation should be sent.
*/
static void guac_terminal_scrollbar_draw_container(
guac_terminal_scrollbar* scrollbar,
guac_terminal_scrollbar_render_state* state,
guac_socket* socket) {
/* Set container size */
guac_protocol_send_size(socket, scrollbar->container,
state->container_width,
state->container_height);
/* Fill container with solid color */
guac_protocol_send_rect(socket, scrollbar->container, 0, 0,
state->container_width,
state->container_height);
guac_protocol_send_cfill(socket, GUAC_COMP_SRC, scrollbar->container,
0x80, 0x80, 0x80, 0x40);
}
void guac_rdp_gdi_set_bounds(rdpContext* context, rdpBounds* bounds) {
guac_client* client = ((rdp_freerdp_context*) context)->client;
const guac_layer* current_layer = ((rdp_guac_client_data*) client->data)->current_surface;
rdp_guac_client_data* data = (rdp_guac_client_data*) client->data;
pthread_mutex_lock(&(data->update_lock));
/* Reset clip */
guac_protocol_send_reset(client->socket, current_layer);
/* Set clip if specified */
if (bounds != NULL) {
guac_protocol_send_rect(client->socket, current_layer,
bounds->left, bounds->top,
bounds->right - bounds->left + 1,
bounds->bottom - bounds->top + 1);
guac_protocol_send_clip(client->socket, current_layer);
}
pthread_mutex_unlock(&(data->update_lock));
}
void guac_terminal_scrollbar_flush(guac_terminal_scrollbar* scrollbar) {
guac_socket* socket = scrollbar->client->socket;
/* Get old state */
int old_value = scrollbar->value;
guac_terminal_scrollbar_render_state* old_state = &scrollbar->render_state;
/* Calculate new state */
int new_value;
guac_terminal_scrollbar_render_state new_state;
calculate_state(scrollbar, &new_state, &new_value);
/* Notify of scroll if value is changing */
if (new_value != old_value && scrollbar->scroll_handler)
scrollbar->scroll_handler(scrollbar, new_value);
/* Reposition container if moved */
if (old_state->container_x != new_state.container_x
|| old_state->container_y != new_state.container_y) {
guac_protocol_send_move(socket,
scrollbar->container, scrollbar->parent,
new_state.container_x,
new_state.container_y,
0);
}
/* Resize and redraw container if size changed */
if (old_state->container_width != new_state.container_width
|| old_state->container_height != new_state.container_height) {
/* Set new size */
guac_protocol_send_size(socket, scrollbar->container,
new_state.container_width,
new_state.container_height);
/* Fill container with solid color */
guac_protocol_send_rect(socket, scrollbar->container, 0, 0,
new_state.container_width,
new_state.container_height);
guac_protocol_send_cfill(socket, GUAC_COMP_SRC, scrollbar->container,
0x40, 0x40, 0x40, 0xFF);
}
/* Reposition handle if moved */
if (old_state->handle_x != new_state.handle_x
|| old_state->handle_y != new_state.handle_y) {
guac_protocol_send_move(socket,
scrollbar->handle, scrollbar->container,
new_state.handle_x,
new_state.handle_y,
0);
}
/* Resize and redraw handle if size changed */
if (old_state->handle_width != new_state.handle_width
|| old_state->handle_height != new_state.handle_height) {
/* Send new size */
guac_protocol_send_size(socket, scrollbar->handle,
new_state.handle_width,
new_state.handle_height);
/* Fill and stroke handle with solid color */
guac_protocol_send_rect(socket, scrollbar->handle, 0, 0,
new_state.handle_width,
new_state.handle_height);
guac_protocol_send_cfill(socket, GUAC_COMP_SRC, scrollbar->handle,
0x80, 0x80, 0x80, 0xFF);
guac_protocol_send_cstroke(socket, GUAC_COMP_OVER, scrollbar->handle,
GUAC_LINE_CAP_SQUARE, GUAC_LINE_JOIN_MITER, 2,
0xA0, 0xA0, 0xA0, 0xFF);
}
/* Store current render state */
scrollbar->render_state = new_state;
}
void guac_rdp_gdi_memblt(rdpContext* context, MEMBLT_ORDER* memblt) {
guac_client* client = ((rdp_freerdp_context*) context)->client;
const guac_layer* current_layer = ((rdp_guac_client_data*) client->data)->current_surface;
guac_socket* socket = client->socket;
guac_rdp_bitmap* bitmap = (guac_rdp_bitmap*) memblt->bitmap;
int x = memblt->nLeftRect;
int y = memblt->nTopRect;
int w = memblt->nWidth;
int h = memblt->nHeight;
int x_src = memblt->nXSrc;
int y_src = memblt->nYSrc;
rdp_guac_client_data* data = (rdp_guac_client_data*) client->data;
pthread_mutex_lock(&(data->update_lock));
/* Clip operation to bounds */
__guac_rdp_clip_rect(data, &x, &y, &w, &h);
/* Update source coordinates */
x_src += x - memblt->nLeftRect;
y_src += y - memblt->nTopRect;
switch (memblt->bRop) {
/* If blackness, send black rectangle */
case 0x00:
guac_protocol_send_rect(client->socket, current_layer, x, y, w, h);
guac_protocol_send_cfill(client->socket,
GUAC_COMP_OVER, current_layer,
0x00, 0x00, 0x00, 0xFF);
break;
/* If NOP, do nothing */
case 0xAA:
break;
/* If operation is just SRC, simply copy */
case 0xCC:
/* If not cached, cache if necessary */
if (((guac_rdp_bitmap*) bitmap)->layer == NULL
&& ((guac_rdp_bitmap*) bitmap)->used >= 1)
guac_rdp_cache_bitmap(context, memblt->bitmap);
/* If not cached, send as PNG */
if (bitmap->layer == NULL) {
if (memblt->bitmap->data != NULL) {
/* Create surface from image data */
cairo_surface_t* surface = cairo_image_surface_create_for_data(
memblt->bitmap->data + 4*(x_src + y_src*memblt->bitmap->width),
CAIRO_FORMAT_RGB24, w, h, 4*memblt->bitmap->width);
/* Send surface to buffer */
guac_protocol_send_png(socket,
GUAC_COMP_OVER, current_layer,
x, y, surface);
/* Free surface */
cairo_surface_destroy(surface);
}
}
/* Otherwise, copy */
else
guac_protocol_send_copy(socket,
bitmap->layer, x_src, y_src, w, h,
GUAC_COMP_OVER, current_layer, x, y);
/* Increment usage counter */
((guac_rdp_bitmap*) bitmap)->used++;
break;
/* If whiteness, send white rectangle */
case 0xFF:
guac_protocol_send_rect(client->socket, current_layer, x, y, w, h);
guac_protocol_send_cfill(client->socket,
GUAC_COMP_OVER, current_layer,
0xFF, 0xFF, 0xFF, 0xFF);
break;
/* Otherwise, use transfer */
default:
/* If not available as a surface, make available. */
if (bitmap->layer == NULL)
guac_rdp_cache_bitmap(context, memblt->bitmap);
guac_protocol_send_transfer(socket,
bitmap->layer, x_src, y_src, w, h,
guac_rdp_rop3_transfer_function(client, memblt->bRop),
current_layer, x, y);
/* Increment usage counter */
((guac_rdp_bitmap*) bitmap)->used++;
}
pthread_mutex_unlock(&(data->update_lock));
}
void guac_rdp_gdi_patblt(rdpContext* context, PATBLT_ORDER* patblt) {
/*
* Note that this is not a full implementation of PATBLT. This is a
* fallback implementation which only renders a solid block of background
* color using the specified ROP3 operation, ignoring whatever brush
* was actually specified.
*
* As libguac-client-rdp explicitly tells the server not to send PATBLT,
* well-behaved RDP servers will not use this operation at all, while
* others will at least have a fallback.
*/
/* Get client and current layer */
guac_client* client = ((rdp_freerdp_context*) context)->client;
const guac_layer* current_layer =
((rdp_guac_client_data*) client->data)->current_surface;
int x = patblt->nLeftRect;
int y = patblt->nTopRect;
int w = patblt->nWidth;
int h = patblt->nHeight;
rdp_guac_client_data* data = (rdp_guac_client_data*) client->data;
/* Layer for actual transfer */
guac_layer* buffer;
/*
* Warn that rendering is a fallback, as the server should not be sending
* this order.
*/
guac_client_log_info(client, "Using fallback PATBLT (server is ignoring "
"negotiated client capabilities)");
/* Clip operation to bounds */
__guac_rdp_clip_rect(data, &x, &y, &w, &h);
/* Render rectangle based on ROP */
switch (patblt->bRop) {
/* If blackness, send black rectangle */
case 0x00:
guac_protocol_send_rect(client->socket, current_layer, x, y, w, h);
guac_protocol_send_cfill(client->socket,
GUAC_COMP_OVER, current_layer,
0x00, 0x00, 0x00, 0xFF);
break;
/* If NOP, do nothing */
case 0xAA:
break;
/* If operation is just a copy, send foreground only */
case 0xCC:
case 0xF0:
guac_protocol_send_rect(client->socket, current_layer, x, y, w, h);
guac_protocol_send_cfill(client->socket,
GUAC_COMP_OVER, current_layer,
(patblt->foreColor >> 16) & 0xFF,
(patblt->foreColor >> 8 ) & 0xFF,
(patblt->foreColor ) & 0xFF,
0xFF);
break;
/* If whiteness, send white rectangle */
case 0xFF:
guac_protocol_send_rect(client->socket, current_layer, x, y, w, h);
guac_protocol_send_cfill(client->socket,
GUAC_COMP_OVER, current_layer,
0xFF, 0xFF, 0xFF, 0xFF);
break;
/* Otherwise, invert entire rect */
default:
/* Allocate buffer for transfer */
buffer = guac_client_alloc_buffer(client);
/* Send rectangle stroke */
guac_protocol_send_rect(client->socket, buffer,
0, 0, w, h);
/* Fill rectangle with fore color only */
guac_protocol_send_cfill(client->socket, GUAC_COMP_OVER, buffer,
0xFF, 0xFF, 0xFF, 0xFF);
/* Transfer */
guac_protocol_send_transfer(client->socket,
/* ... from buffer */
buffer, 0, 0, w, h,
/* ... inverting */
GUAC_TRANSFER_BINARY_XOR,
/* ... to current layer */
current_layer, x, y);
/* Done with buffer */
guac_client_free_buffer(client, buffer);
}
}
void guac_rdp_gdi_dstblt(rdpContext* context, DSTBLT_ORDER* dstblt) {
guac_client* client = ((rdp_freerdp_context*) context)->client;
const guac_layer* current_layer = ((rdp_guac_client_data*) client->data)->current_surface;
int x = dstblt->nLeftRect;
int y = dstblt->nTopRect;
int w = dstblt->nWidth;
int h = dstblt->nHeight;
rdp_guac_client_data* data = (rdp_guac_client_data*) client->data;
pthread_mutex_lock(&(data->update_lock));
/* Clip operation to bounds */
__guac_rdp_clip_rect(data, &x, &y, &w, &h);
switch (dstblt->bRop) {
/* Blackness */
case 0:
/* Send black rectangle */
guac_protocol_send_rect(client->socket, current_layer, x, y, w, h);
guac_protocol_send_cfill(client->socket,
GUAC_COMP_OVER, current_layer,
0, 0, 0, 255);
break;
/* DSTINVERT */
case 0x55:
/* Invert */
guac_protocol_send_transfer(client->socket,
current_layer, x, y, w, h,
GUAC_TRANSFER_BINARY_NDEST,
current_layer, x, y);
break;
/* NOP */
case 0xAA:
break;
/* Whiteness */
case 0xFF:
guac_protocol_send_rect(client->socket, current_layer, x, y, w, h);
guac_protocol_send_cfill(client->socket,
GUAC_COMP_OVER, current_layer,
0xFF, 0xFF, 0xFF, 0xFF);
break;
/* Unsupported ROP3 */
default:
guac_client_log_info(client,
"guac_rdp_gdi_dstblt(rop3=0x%x)", dstblt->bRop);
}
pthread_mutex_unlock(&(data->update_lock));
}
/**
* Suspends execution for the given number of microseconds.
*
* @param usecs
* The number of microseconds to sleep for.
*/
static void streamtest_usleep(int usecs) {
/* Calculate sleep duration in seconds and nanoseconds */
struct timespec sleep_duration = {
.tv_sec = usecs / 1000000,
.tv_nsec = (usecs % 1000000) * 1000
};
/* Sleep for specified amount of time */
nanosleep(&sleep_duration, NULL);
}
/**
* Display a progress bar which indicates the current stream status.
*
* @param client
* The guac_client associated with the libguac-client-streamtest
* connection whose current status should be redrawn.
*/
static void streamtest_render_progress(guac_client* client) {
/* Get stream state from client */
streamtest_state* state = (streamtest_state*) client->data;
/* Only render progress bar for audio streams */
if (state->mode != STREAMTEST_AUDIO)
return;
/* Get current position within file */
int position = lseek(state->fd, 0, SEEK_CUR);
if (position == -1) {
guac_client_log(client, GUAC_LOG_WARNING,
"Unable to determine current position in stream: %s",
strerror(errno));
return;
}
/*
* Render background
*/
guac_protocol_send_rect(client->socket,
GUAC_DEFAULT_LAYER,
0, 0, STREAMTEST_PROGRESS_WIDTH, STREAMTEST_PROGRESS_HEIGHT);
guac_protocol_send_cfill(client->socket,
GUAC_COMP_OVER, GUAC_DEFAULT_LAYER,
0x40, 0x40, 0x40, 0xFF);
/*
* Render progress
*/
guac_protocol_send_rect(client->socket,
GUAC_DEFAULT_LAYER, 0, 0,
(position+1) / ((state->file_size+1) / STREAMTEST_PROGRESS_WIDTH),
STREAMTEST_PROGRESS_HEIGHT);
if (state->paused)
guac_protocol_send_cfill(client->socket,
GUAC_COMP_OVER, GUAC_DEFAULT_LAYER,
0x80, 0x80, 0x00, 0xFF);
else
guac_protocol_send_cfill(client->socket,
GUAC_COMP_OVER, GUAC_DEFAULT_LAYER,
0x00, 0x80, 0x00, 0xFF);
}
void guac_terminal_display_select(guac_terminal_display* display,
int start_row, int start_col, int end_row, int end_col) {
guac_socket* socket = display->client->socket;
guac_layer* select_layer = display->select_layer;
/* Text is now selected */
display->text_selected = true;
display->selection_start_row = start_row;
display->selection_start_column = start_col;
display->selection_end_row = end_row;
display->selection_end_column = end_col;
/* If single row, just need one rectangle */
if (start_row == end_row) {
/* Ensure proper ordering of columns */
if (start_col > end_col) {
int temp = start_col;
start_col = end_col;
end_col = temp;
}
/* Select characters between columns */
guac_protocol_send_rect(socket, select_layer,
start_col * display->char_width,
start_row * display->char_height,
(end_col - start_col + 1) * display->char_width,
display->char_height);
}
/* Otherwise, need three */
else {
/* Ensure proper ordering of start and end coords */
if (start_row > end_row) {
int temp;
temp = start_row;
start_row = end_row;
end_row = temp;
temp = start_col;
start_col = end_col;
end_col = temp;
}
/* First row */
guac_protocol_send_rect(socket, select_layer,
start_col * display->char_width,
start_row * display->char_height,
display->width * display->char_width,
display->char_height);
/* Middle */
guac_protocol_send_rect(socket, select_layer,
0,
(start_row + 1) * display->char_height,
display->width * display->char_width,
(end_row - start_row - 1) * display->char_height);
/* Last row */
guac_protocol_send_rect(socket, select_layer,
0,
end_row * display->char_height,
(end_col + 1) * display->char_width,
display->char_height);
}
/* Draw new selection, erasing old */
guac_protocol_send_cfill(socket, GUAC_COMP_SRC, select_layer,
0x00, 0x80, 0xFF, 0x60);
guac_client_end_frame(display->client);
guac_socket_flush(socket);
}