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Commit 8fdf5c8a authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont
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XCB/XVideo: permute image format loops and rework format selection 

 * fix memory leak of image attribute in case of error,
 * fix clobber of video format structure in case of error,
 * print unknown XVideo format error only once per adaptor
   (rather than once per VLC format per adaptor)
parent a8da2aa3
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Inline Side-by-side
Showing with 101 additions and 78 deletions
modules/video_output/xcb/xvideo.c
View file @ 8fdf5c8a
......@@ -25,6 +25,7 @@
#endif
#include <stdlib.h>
#include <limits.h>
#include <assert.h>
#include <xcb/xcb.h>
......@@ -239,22 +240,79 @@ static vlc_fourcc_t ParseFormat (vlc_object_t *obj,
return 0;
}
static bool BetterFormat (vlc_fourcc_t a, const vlc_fourcc_t *tab,
unsigned *rankp)
{
for (unsigned i = 0, max = *rankp; i < max && tab[i] != 0; i++)
if (tab[i] == a)
{
*rankp = i;
return true;
}
return false;
}
static const xcb_xv_image_format_info_t *
FindFormat (vout_display_t *vd,
vlc_fourcc_t chroma, const video_format_t *fmt,
xcb_xv_port_t port,
const xcb_xv_list_image_formats_reply_t *list,
xcb_xv_query_image_attributes_reply_t **restrict pa)
static xcb_xv_query_image_attributes_reply_t *
FindFormat (vlc_object_t *obj, xcb_connection_t *conn, video_format_t *fmt,
const xcb_xv_adaptor_info_t *a, uint32_t *idp)
{
xcb_connection_t *conn = vd->sys->conn;
const xcb_xv_image_format_info_t *f, *end;
/* Order chromas by preference */
vlc_fourcc_t tab[7];
const vlc_fourcc_t *chromav = tab;
vlc_fourcc_t chroma = var_InheritInteger (obj, "xvideo-format-id");
if (chroma != 0) /* Forced chroma */
{
tab[0] = chroma;
tab[1] = 0;
}
else if (vlc_fourcc_IsYUV (fmt->i_chroma)) /* YUV chroma */
{
chromav = vlc_fourcc_GetYUVFallback (fmt->i_chroma);
}
else /* RGB chroma */
{
tab[0] = fmt->i_chroma;
tab[1] = VLC_CODEC_RGB32;
tab[2] = VLC_CODEC_RGB24;
tab[3] = VLC_CODEC_RGB16;
tab[4] = VLC_CODEC_RGB15;
tab[5] = VLC_CODEC_YUYV;
tab[6] = 0;
}
f = xcb_xv_list_image_formats_format (list);
end = f + xcb_xv_list_image_formats_format_length (list);
for (; f < end; f++)
/* Get available image formats */
xcb_xv_list_image_formats_reply_t *list =
xcb_xv_list_image_formats_reply (conn,
xcb_xv_list_image_formats (conn, a->base_id), NULL);
if (list == NULL)
return NULL;
/* Check available XVideo chromas */
xcb_xv_query_image_attributes_reply_t *attr = NULL;
unsigned rank = UINT_MAX;
for (const xcb_xv_image_format_info_t *f =
xcb_xv_list_image_formats_format (list),
*f_end =
f + xcb_xv_list_image_formats_format_length (list);
f < f_end;
f++)
{
if (chroma != ParseFormat (VLC_OBJECT(vd), f))
chroma = ParseFormat (obj, f);
if (chroma == 0)
continue;
/* Oink oink! */
if ((chroma == VLC_CODEC_I420 || chroma == VLC_CODEC_YV12)
&& a->name_size >= 4
&& !memcmp ("OMAP", xcb_xv_adaptor_info_name (a), 4))
{
msg_Dbg (obj, "skipping slow I420 format");
continue; /* OMAP framebuffer sucks at YUV 4:2:0 */
}
if (!BetterFormat (chroma, chromav, &rank))
continue;
/* VLC pads scanline to 16 pixels internally */
......@@ -262,20 +320,20 @@ FindFormat (vout_display_t *vd,
unsigned height = fmt->i_height;
xcb_xv_query_image_attributes_reply_t *i;
i = xcb_xv_query_image_attributes_reply (conn,
xcb_xv_query_image_attributes (conn, port, f->id,
xcb_xv_query_image_attributes (conn, a->base_id, f->id,
width, height), NULL);
if (i == NULL)
continue;
if (i->width != width || i->height != height)
{
msg_Warn (vd, "incompatible size %ux%u -> %"PRIu32"x%"PRIu32,
msg_Warn (obj, "incompatible size %ux%u -> %"PRIu32"x%"PRIu32,
fmt->i_width, fmt->i_height,
i->width, i->height);
var_Create (vd->p_libvlc, "xvideo-resolution-error", VLC_VAR_BOOL);
if (!var_GetBool (vd->p_libvlc, "xvideo-resolution-error"))
var_Create (obj->p_libvlc, "xvideo-res-error", VLC_VAR_BOOL);
if (!var_GetBool (obj->p_libvlc, "xvideo-res-error"))
{
dialog_FatalWait (vd, _("Video acceleration not available"),
dialog_FatalWait (obj, _("Video acceleration not available"),
_("Your video output acceleration driver does not support "
"the required resolution: %ux%u pixels. The maximum "
"supported resolution is %"PRIu32"x%"PRIu32".\n"
......@@ -283,15 +341,28 @@ FindFormat (vout_display_t *vd,
"rendering videos with overly large resolution "
"may cause severe performance degration."),
width, height, i->width, i->height);
var_SetBool (vd->p_libvlc, "xvideo-resolution-error", true);
var_SetBool (obj->p_libvlc, "xvideo-res-error", true);
}
free (i);
continue;
}
*pa = i;
return f;
fmt->i_chroma = chroma;
if (f->type == XCB_XV_IMAGE_FORMAT_INFO_TYPE_RGB)
{
fmt->i_rmask = f->red_mask;
fmt->i_gmask = f->green_mask;
fmt->i_bmask = f->blue_mask;
}
*idp = f->id;
free (attr);
attr = i;
if (rank == 0)
break; /* shortcut for perfect match */
}
return NULL;
free (list);
return attr;
}
......@@ -325,7 +396,6 @@ static int Open (vlc_object_t *obj)
p_sys->conn = conn;
p_sys->att = NULL;
p_sys->pool = NULL;
p_sys->swap_uv = false;
if (!CheckXVideo (vd, conn))
{
......@@ -346,7 +416,7 @@ static int Open (vlc_object_t *obj)
int forced_adaptor = var_InheritInteger (obj, "xvideo-adaptor");
/* */
video_format_t fmt = vd->fmt;
video_format_t fmt;
p_sys->port = 0;
xcb_xv_adaptor_info_iterator_t it;
......@@ -367,63 +437,12 @@ static int Open (vlc_object_t *obj)
|| !(a->type & XCB_XV_TYPE_IMAGE_MASK))
continue;
xcb_xv_list_image_formats_reply_t *r =
xcb_xv_list_image_formats_reply (conn,
xcb_xv_list_image_formats (conn, a->base_id), NULL);
if (r == NULL)
continue;
/* Look for an image format */
const xcb_xv_image_format_info_t *xfmt = NULL;
const vlc_fourcc_t *chromas, chromas_default[] = {
fmt.i_chroma,
VLC_CODEC_RGB32,
VLC_CODEC_RGB24,
VLC_CODEC_RGB16,
VLC_CODEC_RGB15,
VLC_CODEC_YUYV,
0
};
if (vlc_fourcc_IsYUV (fmt.i_chroma))
chromas = vlc_fourcc_GetYUVFallback (fmt.i_chroma);
else
chromas = chromas_default;
int forced_format_id = var_CreateGetInteger (obj, "xvideo-format-id");
vlc_fourcc_t chroma = forced_format_id;
xfmt = FindFormat (vd, chroma, &fmt, a->base_id, r, &p_sys->att);
for (size_t i = 0; !xfmt && chromas[i]; i++)
{
chroma = chromas[i];
/* Oink oink! */
if ((chroma == VLC_CODEC_I420 || chroma == VLC_CODEC_YV12)
&& a->name_size >= 4
&& !memcmp ("OMAP", xcb_xv_adaptor_info_name (a), 4))
{
msg_Dbg (vd, "skipping slow I420 format");
continue; /* OMAP framebuffer sucks at YUV 4:2:0 */
}
xfmt = FindFormat (vd, chroma, &fmt, a->base_id, r, &p_sys->att);
}
if (xfmt == NULL) /* No acceptable image formats */
{
free (r);
fmt = vd->fmt;
free (p_sys->att);
p_sys->att = FindFormat (obj, conn, &fmt, a, &p_sys->id);
if (p_sys->att == NULL) /* No acceptable image formats */
continue;
}
p_sys->id = xfmt->id;
p_sys->swap_uv = vlc_fourcc_AreUVPlanesSwapped (fmt.i_chroma, chroma);
if (!p_sys->swap_uv)
fmt.i_chroma = chroma;
if (xfmt->type == XCB_XV_IMAGE_FORMAT_INFO_TYPE_RGB)
{
fmt.i_rmask = xfmt->red_mask;
fmt.i_gmask = xfmt->green_mask;
fmt.i_bmask = xfmt->blue_mask;
}
free (r);
/* Grab a port */
for (unsigned i = 0; i < a->num_ports; i++)
......@@ -560,6 +579,10 @@ static int Open (vlc_object_t *obj)
info.has_event_thread = true;
/* Setup vout_display_t once everything is fine */
p_sys->swap_uv = vlc_fourcc_AreUVPlanesSwapped (fmt.i_chroma,
vd->fmt.i_chroma);
if (p_sys->swap_uv)
fmt.i_chroma = vd->fmt.i_chroma;
vd->fmt = fmt;
vd->info = info;
......
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