maride/guacamole-spice-protocol
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Allocate buffers conservatively.

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This commit is contained in:
Michael Jumper 2012-04-10 11:04:38 -07:00
parent 7211513001
commit 18a1996f6b
1 changed files with 52 additions and 39 deletions
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91
protocols/rdp/src/rdp_bitmap.c
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@ -53,16 +53,38 @@
#include "client.h"
#include "rdp_bitmap.h"
void guac_rdp_bitmap_new(rdpContext* context, rdpBitmap* bitmap) {
void __guac_rdp_cache_bitmap(rdpContext* context, rdpBitmap* bitmap) {
guac_client* client = ((rdp_freerdp_context*) context)->client;
guac_socket* socket = client->socket;
/* Allocate buffer */
guac_layer* buffer = guac_client_alloc_buffer(client);
/* Cache image data if present */
if (bitmap->data != NULL) {
/* Store buffer reference in bitmap */
((guac_rdp_bitmap*) bitmap)->layer = buffer;
/* Allocate buffer */
guac_layer* buffer = guac_client_alloc_buffer(client);
/* Create surface from image data */
cairo_surface_t* surface = cairo_image_surface_create_for_data(
bitmap->data, CAIRO_FORMAT_RGB24,
bitmap->width, bitmap->height, 4*bitmap->width);
/* Send surface to buffer */
guac_protocol_send_png(socket,
GUAC_COMP_SRC, buffer, 0, 0, surface);
/* Free surface */
cairo_surface_destroy(surface);
/* Store buffer reference in bitmap */
((guac_rdp_bitmap*) bitmap)->layer = buffer;
}
}
void guac_rdp_bitmap_new(rdpContext* context, rdpBitmap* bitmap) {
/* Convert image data if present */
if (bitmap->data != NULL) {
@ -73,41 +95,27 @@ void guac_rdp_bitmap_new(rdpContext* context, rdpBitmap* bitmap) {
context->instance->settings->color_depth,
32, ((rdp_freerdp_context*) context)->clrconv);
/* If not ephemeral, store cached image, and free image data */
if (!bitmap->ephemeral) {
/* Free existing image, if any */
if (image_buffer != bitmap->data)
free(bitmap->data);
/* Create surface from image data */
cairo_surface_t* surface = cairo_image_surface_create_for_data(
image_buffer, CAIRO_FORMAT_RGB24,
bitmap->width, bitmap->height, 4*bitmap->width);
/* Store converted image in bitmap */
bitmap->data = image_buffer;
/* Send surface to buffer */
guac_protocol_send_png(socket,
GUAC_COMP_SRC, buffer, 0, 0, surface);
/* If not ephemeral, store cached image */
if (!bitmap->ephemeral)
__guac_rdp_cache_bitmap(context, bitmap);
/* Free surface */
cairo_surface_destroy(surface);
/* Free image data if actually alloated */
if (image_buffer != bitmap->data)
free(image_buffer);
}
/* Otherwise, store converted image in bitmap, free any existing */
else {
/* Free existing image, if any */
if (image_buffer != bitmap->data)
free(bitmap->data);
/* Store converted image in bitmap */
bitmap->data = image_buffer;
}
else
/* No corresponding layer */
((guac_rdp_bitmap*) bitmap)->layer = NULL;
}
else
/* No corresponding layer */
((guac_rdp_bitmap*) bitmap)->layer = NULL;
}
void guac_rdp_bitmap_paint(rdpContext* context, rdpBitmap* bitmap) {
@ -118,8 +126,8 @@ void guac_rdp_bitmap_paint(rdpContext* context, rdpBitmap* bitmap) {
int width = bitmap->right - bitmap->left + 1;
int height = bitmap->bottom - bitmap->top + 1;
/* If not ephemeral, retrieve from cache */
if (!bitmap->ephemeral)
/* If cached, retrieve from cache */
if (((guac_rdp_bitmap*) bitmap)->layer != NULL)
guac_protocol_send_copy(socket,
((guac_rdp_bitmap*) bitmap)->layer,
0, 0, width, height,
@ -160,9 +168,14 @@ void guac_rdp_bitmap_setsurface(rdpContext* context, rdpBitmap* bitmap, boolean
if (primary)
((rdp_guac_client_data*) client->data)->current_surface
= GUAC_DEFAULT_LAYER;
else
((rdp_guac_client_data*) client->data)->current_surface
= ((guac_rdp_bitmap*) bitmap)->layer;
else {
if (((guac_rdp_bitmap*) bitmap)->layer != NULL)
((rdp_guac_client_data*) client->data)->current_surface
= ((guac_rdp_bitmap*) bitmap)->layer;
}
}