[Spice-devel] [PATCH spice-gtk] Revert "Avoid clang warnings on casts with stricter alignment requirements"
Victor Toso
victortoso at redhat.com
Wed Jun 28 11:48:12 UTC 2017
From: Victor Toso <me at victortoso.com>
This reverts all spice-gtk changes from commit babe5630d5d3242b1d18
while keeping the spice-common updates.
Signed-off-by: Victor Toso <victortoso at redhat.com>
---
configure.ac | 8 --------
src/channel-cursor.c | 8 +++-----
src/channel-display-mjpeg.c | 2 +-
src/channel-main.c | 2 +-
src/continuation.h | 6 ++----
src/decode-glz-tmpl.c | 2 +-
src/spice-channel.c | 25 ++++++++++---------------
7 files changed, 18 insertions(+), 35 deletions(-)
diff --git a/configure.ac b/configure.ac
index caa289a..62acafc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -565,14 +565,6 @@ else
SPICE_WARNING([No D-Bus support, desktop integration and USB redirection may not work properly])
fi
-AC_ARG_ENABLE([alignment-checks],
- AS_HELP_STRING([--enable-alignment-checks],
- [Enable runtime checks for cast alignment @<:@default=no@:>@]),
- [],
- enable_alignment_checks="no")
-AS_IF([test "x$enable_alignment_checks" = "xyes"],
- [AC_DEFINE([SPICE_DEBUG_ALIGNMENT], 1, [Enable runtime checks for cast alignment])])
-
SPICE_CHECK_LZ4
dnl ===========================================================================
diff --git a/src/channel-cursor.c b/src/channel-cursor.c
index 14053a9..558c920 100644
--- a/src/channel-cursor.c
+++ b/src/channel-cursor.c
@@ -381,11 +381,10 @@ static display_cursor *set_cursor(SpiceChannel *channel, SpiceCursor *scursor)
SpiceCursorHeader *hdr = &scursor->header;
display_cursor *cursor;
size_t size;
- guint32 i, pix_mask, pix;
+ gint i, pix_mask, pix;
const guint8* data;
guint8 *rgba;
guint8 val;
- guint32 palette[16];
CHANNEL_DEBUG(channel, "%s: flags %x, size %u", __FUNCTION__,
scursor->flags, scursor->data_size);
@@ -434,7 +433,7 @@ static display_cursor *set_cursor(SpiceChannel *channel, SpiceCursor *scursor)
size /= 2u;
for (i = 0; i < hdr->width * hdr->height; i++) {
pix_mask = get_pix_mask(data, size, i);
- pix = *(SPICE_UNALIGNED_CAST(guint16 *, data) + i);
+ pix = *((guint16*)data + i);
if (pix_mask && pix == 0x7fff) {
cursor->data[i] = get_pix_hack(i, hdr->width);
} else {
@@ -445,11 +444,10 @@ static display_cursor *set_cursor(SpiceChannel *channel, SpiceCursor *scursor)
break;
case SPICE_CURSOR_TYPE_COLOR4:
size = ((unsigned int)(SPICE_ALIGN(hdr->width, 2) / 2)) * hdr->height;
- memcpy(palette, data + size, sizeof(palette));
for (i = 0; i < hdr->width * hdr->height; i++) {
pix_mask = get_pix_mask(data, size + (sizeof(uint32_t) << 4), i);
int idx = (i & 1) ? (data[i >> 1] & 0x0f) : ((data[i >> 1] & 0xf0) >> 4);
- pix = palette[idx];
+ pix = *((uint32_t*)(data + size) + idx);
if (pix_mask && pix == 0xffffff) {
cursor->data[i] = get_pix_hack(i, hdr->width);
} else {
diff --git a/src/channel-display-mjpeg.c b/src/channel-display-mjpeg.c
index ee33b01..3ae9d21 100644
--- a/src/channel-display-mjpeg.c
+++ b/src/channel-display-mjpeg.c
@@ -151,7 +151,7 @@ static gboolean mjpeg_decoder_decode_frame(gpointer video_decoder)
#ifndef JCS_EXTENSIONS
{
uint8_t *s = lines[0];
- uint32_t *d = SPICE_ALIGNED_CAST(uint32_t *, s);
+ uint32_t *d = (uint32_t *)s;
if (back_compat) {
for (unsigned int j = lines_read * width; j > 0; ) {
diff --git a/src/channel-main.c b/src/channel-main.c
index 4edd575..87e621e 100644
--- a/src/channel-main.c
+++ b/src/channel-main.c
@@ -1872,7 +1872,7 @@ static void main_agent_handle_xfer_status(SpiceMainChannel *channel,
_("The spice agent reported an error during the file transfer"));
break;
case VD_AGENT_FILE_XFER_STATUS_NOT_ENOUGH_SPACE: {
- uint64_t *free_space = SPICE_ALIGNED_CAST(uint64_t *, msg->data);
+ uint64_t *free_space = (uint64_t *)(msg->data);
gchar *free_space_str = g_format_size(*free_space);
gchar *file_size_str = g_format_size(spice_file_transfer_task_get_total_bytes(xfer_task));
error = g_error_new(SPICE_CLIENT_ERROR, SPICE_CLIENT_ERROR_FAILED,
diff --git a/src/continuation.h b/src/continuation.h
index d1fd137..675a257 100644
--- a/src/continuation.h
+++ b/src/continuation.h
@@ -21,7 +21,6 @@
#ifndef _CONTINUATION_H_
#define _CONTINUATION_H_
-#include "spice-common.h"
#include <stddef.h>
#include <ucontext.h>
#include <setjmp.h>
@@ -49,9 +48,8 @@ int cc_release(struct continuation *cc);
int cc_swap(struct continuation *from, struct continuation *to);
#define offset_of(type, member) ((unsigned long)(&((type *)0)->member))
-#define container_of(obj, type, member) \
- SPICE_ALIGNED_CAST(type *, \
- (((char *)obj) - offset_of(type, member)))
+#define container_of(obj, type, member) \
+ (type *)(((char *)obj) - offset_of(type, member))
#endif
/*
diff --git a/src/decode-glz-tmpl.c b/src/decode-glz-tmpl.c
index 76d832c..b337a8b 100644
--- a/src/decode-glz-tmpl.c
+++ b/src/decode-glz-tmpl.c
@@ -178,7 +178,7 @@ static size_t FNAME(decode)(SpiceGlzDecoderWindow *window,
uint64_t image_id, SpicePalette *plt)
{
uint8_t *ip = in_buf;
- OUT_PIXEL *out_pix_buf = SPICE_ALIGNED_CAST(OUT_PIXEL *, out_buf);
+ OUT_PIXEL *out_pix_buf = (OUT_PIXEL *)out_buf;
OUT_PIXEL *op = out_pix_buf;
OUT_PIXEL *op_limit = out_pix_buf + size;
diff --git a/src/spice-channel.c b/src/spice-channel.c
index 418e2b7..77ac9cd 100644
--- a/src/spice-channel.c
+++ b/src/spice-channel.c
@@ -1312,7 +1312,6 @@ static void spice_channel_send_link(SpiceChannel *channel)
{
SpiceChannelPrivate *c = channel->priv;
uint8_t *buffer, *p;
- uint32_t *caps;
int protocol, i;
SpiceLinkMess link_msg;
@@ -1358,14 +1357,14 @@ static void spice_channel_send_link(SpiceChannel *channel)
memcpy(p, &c->link_hdr, sizeof(c->link_hdr)); p += sizeof(c->link_hdr);
memcpy(p, &link_msg, sizeof(link_msg)); p += sizeof(link_msg);
- caps = SPICE_UNALIGNED_CAST(uint32_t *,p);
for (i = 0; i < c->common_caps->len; i++) {
- *caps++ = GUINT32_TO_LE(g_array_index(c->common_caps, uint32_t, i));
+ *(uint32_t *)p = GUINT32_TO_LE(g_array_index(c->common_caps, uint32_t, i));
+ p += sizeof(uint32_t);
}
for (i = 0; i < c->caps->len; i++) {
- *caps++ = GUINT32_TO_LE(g_array_index(c->caps, uint32_t, i));
+ *(uint32_t *)p = GUINT32_TO_LE(g_array_index(c->caps, uint32_t, i));
+ p += sizeof(uint32_t);
}
- p = (uint8_t *) caps;
CHANNEL_DEBUG(channel, "channel type %d id %d num common caps %u num caps %u",
c->channel_type,
c->channel_id,
@@ -1889,7 +1888,6 @@ static gboolean spice_channel_recv_link_msg(SpiceChannel *channel)
SpiceChannelPrivate *c;
int rc, num_caps, i;
uint32_t *caps, num_channel_caps, num_common_caps;
- uint8_t *caps_src;
SpiceChannelEvent event = SPICE_CHANNEL_ERROR_LINK;
g_return_val_if_fail(channel != NULL, FALSE);
@@ -1929,21 +1927,18 @@ static gboolean spice_channel_recv_link_msg(SpiceChannel *channel)
/* see original spice/client code: */
/* g_return_if_fail(c->peer_msg + c->peer_msg->caps_offset * sizeof(uint32_t) > c->peer_msg + c->peer_hdr.size); */
- caps_src = (uint8_t *)c->peer_msg + GUINT32_FROM_LE(c->peer_msg->caps_offset);
+ caps = (uint32_t *)((uint8_t *)c->peer_msg + GUINT32_FROM_LE(c->peer_msg->caps_offset));
+
g_array_set_size(c->remote_common_caps, num_common_caps);
- caps = &g_array_index(c->remote_common_caps, uint32_t, 0);
- memcpy(caps, caps_src, num_common_caps * sizeof(uint32_t));
for (i = 0; i < num_common_caps; i++, caps++) {
- *caps = GUINT32_FROM_LE(*caps);
- CHANNEL_DEBUG(channel, "got common caps %d:0x%X", i, *caps);
+ g_array_index(c->remote_common_caps, uint32_t, i) = GUINT32_FROM_LE(*caps);
+ CHANNEL_DEBUG(channel, "got common caps %d:0x%X", i, GUINT32_FROM_LE(*caps));
}
g_array_set_size(c->remote_caps, num_channel_caps);
- caps_src += num_common_caps * sizeof(uint32_t);
- memcpy(caps, caps_src, num_channel_caps * sizeof(uint32_t));
for (i = 0; i < num_channel_caps; i++, caps++) {
- *caps = GUINT32_FROM_LE(*caps);
- CHANNEL_DEBUG(channel, "got channel caps %d:0x%X", i, *caps);
+ g_array_index(c->remote_caps, uint32_t, i) = GUINT32_FROM_LE(*caps);
+ CHANNEL_DEBUG(channel, "got channel caps %d:0x%X", i, GUINT32_FROM_LE(*caps));
}
if (!spice_channel_test_common_capability(channel,
--
2.13.0
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