guacamole-spice-protocol/src/common/guac_surface.c

/*
 * Copyright (C) 2014 Glyptodon LLC
 *
 * 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:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * 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.
 */

#include "config.h"
#include "guac_surface.h"

#include <cairo/cairo.h>
#include <guacamole/layer.h>
#include <guacamole/protocol.h>
#include <guacamole/socket.h>

#include <stdlib.h>

guac_common_surface* guac_common_surface_alloc(guac_socket* socket, const guac_layer* layer, int w, int h) {

    /* Init surface */
    guac_common_surface* surface = malloc(sizeof(guac_common_surface));
    surface->layer = layer;
    surface->socket = socket;
    surface->width = w;
    surface->height = h;
    surface->dirty = 0;

    /* Create corresponding Cairo surface */
    surface->stride = cairo_format_stride_for_width(CAIRO_FORMAT_RGB24, w);
    surface->buffer = malloc(surface->stride * h);
    surface->surface = cairo_image_surface_create_for_data(surface->buffer, CAIRO_FORMAT_RGB24,
                                                           w, h, surface->stride);

    guac_protocol_send_size(socket, layer, w, h);
    return surface;
}

void guac_common_surface_free(guac_common_surface* surface) {
    guac_protocol_send_dispose(surface->socket, surface->layer);
    cairo_surface_destroy(surface->surface);
    free(surface->buffer);
    free(surface);
}

void guac_common_surface_draw(guac_common_surface* surface, int x, int y, cairo_surface_t* src) {

    guac_socket* socket = surface->socket;
    const guac_layer* layer = surface->layer;

    /* STUB */
    guac_protocol_send_png(socket, GUAC_COMP_OVER, layer, x, y, src);

}

void guac_common_surface_copy(guac_common_surface* src, int sx, int sy, int w, int h,
                              guac_common_surface* dst, int dx, int dy) {

    guac_socket* socket = dst->socket;
    const guac_layer* src_layer = src->layer;
    const guac_layer* dst_layer = dst->layer;

    /* STUB */
    guac_protocol_send_copy(socket, src_layer, sx, sy, w, h, GUAC_COMP_OVER, dst_layer, dx, dy);

}

void guac_common_surface_transfer(guac_common_surface* src, int sx, int sy, int w, int h,
                                  guac_transfer_function op, guac_common_surface* dst, int dx, int dy) {

    guac_socket* socket = dst->socket;
    const guac_layer* src_layer = src->layer;
    const guac_layer* dst_layer = dst->layer;

    /* STUB */
    guac_protocol_send_transfer(socket, src_layer, sx, sy, w, h, op, dst_layer, dx, dy);

}

void guac_common_surface_resize(guac_common_surface* surface, int w, int h) {

    guac_socket* socket = surface->socket;
    const guac_layer* layer = surface->layer;

    /* STUB */
    guac_protocol_send_size(socket, layer, w, h);

}

void guac_common_surface_rect(guac_common_surface* surface,
                              int x, int y, int w, int h,
                              int red, int green, int blue) {

    guac_socket* socket = surface->socket;
    const guac_layer* layer = surface->layer;

    /* STUB */
    guac_protocol_send_rect(socket, layer, x, y, w, h);
    guac_protocol_send_cfill(socket, GUAC_COMP_OVER, layer, red, green, blue, 0xFF);
}

void guac_common_surface_flush(guac_common_surface* surface) {
    /* STUB */
}