guacamole-spice-protocol/src/protocols/rdp/rdp_bitmap.c

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/*
* Copyright (C) 2013 Glyptodon LLC
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*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
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*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
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*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
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#include "config.h"
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#include "client.h"
#include "guac_surface.h"
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#include "rdp_bitmap.h"
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#include "rdp_settings.h"
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#include <cairo/cairo.h>
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#include <freerdp/codec/bitmap.h>
#include <freerdp/codec/color.h>
#include <freerdp/freerdp.h>
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#include <guacamole/client.h>
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#include <guacamole/socket.h>
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#ifdef ENABLE_WINPR
#include <winpr/wtypes.h>
#else
#include "compat/winpr-wtypes.h"
#endif
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#include <stdio.h>
#include <stdlib.h>
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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;
guac_socket* socket = client->socket;
/* Allocate surface */
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guac_layer* buffer = guac_client_alloc_buffer(client);
guac_common_surface* surface = guac_common_surface_alloc(client, socket,
buffer, bitmap->width, bitmap->height);
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/* Cache image data if present */
if (bitmap->data != NULL) {
/* Create surface from image data */
cairo_surface_t* image = cairo_image_surface_create_for_data(
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bitmap->data, CAIRO_FORMAT_RGB24,
bitmap->width, bitmap->height, 4*bitmap->width);
/* Send surface to buffer */
guac_common_surface_draw(surface, 0, 0, image);
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/* Free surface */
cairo_surface_destroy(image);
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}
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/* Store buffer reference in bitmap */
((guac_rdp_bitmap*) bitmap)->buffer = buffer;
((guac_rdp_bitmap*) bitmap)->surface = surface;
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}
void guac_rdp_bitmap_new(rdpContext* context, rdpBitmap* bitmap) {
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/* Convert image data if present */
if (bitmap->data != NULL && bitmap->bpp != 32) {
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/* Convert image data to 32-bit RGB */
unsigned char* image_buffer = freerdp_image_convert(bitmap->data, NULL,
bitmap->width, bitmap->height,
guac_rdp_get_depth(context->instance),
32, ((rdp_freerdp_context*) context)->clrconv);
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/* Free existing image, if any */
if (image_buffer != bitmap->data) {
#ifdef FREERDP_BITMAP_REQUIRES_ALIGNED_MALLOC
_aligned_free(bitmap->data);
#else
free(bitmap->data);
#endif
}
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/* Store converted image in bitmap */
bitmap->data = image_buffer;
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}
/* No corresponding surface yet - caching is deferred. */
((guac_rdp_bitmap*) bitmap)->buffer = NULL;
((guac_rdp_bitmap*) bitmap)->surface = NULL;
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/* Start at zero usage */
((guac_rdp_bitmap*) bitmap)->used = 0;
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}
void guac_rdp_bitmap_paint(rdpContext* context, rdpBitmap* bitmap) {
guac_client* client = ((rdp_freerdp_context*) context)->client;
rdp_guac_client_data* client_data = (rdp_guac_client_data*) client->data;
guac_common_surface* surface = ((guac_rdp_bitmap*) bitmap)->surface;
int width = bitmap->right - bitmap->left + 1;
int height = bitmap->bottom - bitmap->top + 1;
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/* If not cached, cache if necessary */
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 */
if (surface != NULL)
guac_common_surface_copy(surface, 0, 0, width, height,
client_data->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(client_data->default_surface, bitmap->left, bitmap->top, image);
/* Free surface */
cairo_surface_destroy(image);
}
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/* Increment usage counter */
((guac_rdp_bitmap*) bitmap)->used++;
}
void guac_rdp_bitmap_free(rdpContext* context, rdpBitmap* bitmap) {
guac_client* client = ((rdp_freerdp_context*) context)->client;
guac_layer* buffer = ((guac_rdp_bitmap*) bitmap)->buffer;
guac_common_surface* surface = ((guac_rdp_bitmap*) bitmap)->surface;
/* If cached, free surface */
if (surface != NULL)
guac_common_surface_free(surface);
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/* If cached, free buffer */
if (buffer != NULL)
guac_client_free_buffer(client, buffer);
}
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void guac_rdp_bitmap_setsurface(rdpContext* context, rdpBitmap* bitmap, BOOL primary) {
guac_client* client = ((rdp_freerdp_context*) context)->client;
rdp_guac_client_data* client_data = (rdp_guac_client_data*) client->data;
if (primary)
client_data->current_surface = client_data->default_surface;
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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;
}
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/* If not available as a surface, make available. */
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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}
}
#ifdef LEGACY_RDPBITMAP
void guac_rdp_bitmap_decompress(rdpContext* context, rdpBitmap* bitmap, UINT8* data,
int width, int height, int bpp, int length, BOOL compressed) {
#else
void guac_rdp_bitmap_decompress(rdpContext* context, rdpBitmap* bitmap, UINT8* data,
int width, int height, int bpp, int length, BOOL compressed, int codec_id) {
#endif
int size = width * height * 4;
#ifdef FREERDP_BITMAP_REQUIRES_ALIGNED_MALLOC
/* Free pre-existing data, if any (might be reused) */
if (bitmap->data != NULL)
_aligned_free(bitmap->data);
/* Allocate new data */
bitmap->data = (UINT8*) _aligned_malloc(size, 16);
#else
/* Free pre-existing data, if any (might be reused) */
free(bitmap->data);
/* Allocate new data */
bitmap->data = (UINT8*) malloc(size);
#endif
if (compressed) {
#ifdef HAVE_RDPCONTEXT_CODECS
rdpCodecs* codecs = context->codecs;
/* Decode as interleaved if less than 32 bits per pixel */
if (bpp < 32) {
freerdp_client_codecs_prepare(codecs, FREERDP_CODEC_INTERLEAVED);
#ifdef INTERLEAVED_DECOMPRESS_TAKES_PALETTE
interleaved_decompress(codecs->interleaved, data, length, bpp,
&(bitmap->data), PIXEL_FORMAT_XRGB32, -1, 0, 0, width, height,
(BYTE*) ((rdp_freerdp_context*) context)->palette);
bitmap->bpp = 32;
#else
interleaved_decompress(codecs->interleaved, data, length, bpp,
&(bitmap->data), PIXEL_FORMAT_XRGB32, -1, 0, 0, width, height);
bitmap->bpp = bpp;
#endif
}
/* Otherwise, decode as planar */
else {
freerdp_client_codecs_prepare(codecs, FREERDP_CODEC_PLANAR);
#ifdef PLANAR_DECOMPRESS_CAN_FLIP
planar_decompress(codecs->planar, data, length,
&(bitmap->data), PIXEL_FORMAT_XRGB32, -1, 0, 0, width, height,
TRUE);
bitmap->bpp = 32;
#else
planar_decompress(codecs->planar, data, length,
&(bitmap->data), PIXEL_FORMAT_XRGB32, -1, 0, 0, width, height);
bitmap->bpp = bpp;
#endif
}
#else
bitmap_decompress(data, bitmap->data, width, height, length, bpp, bpp);
bitmap->bpp = bpp;
#endif
}
else {
freerdp_image_flip(data, bitmap->data, width, height, bpp);
bitmap->bpp = bpp;
}
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bitmap->compressed = FALSE;
bitmap->length = size;
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}