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glamor: Add new GLAMOR_CREATE_PIXMAP_NO_TEXTURE pixmap create flag

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This flag lets a DDX allocate a glamor pixmap without allocating the
texture that backs it.  The DDX can then allocate the texture itself
and then set it later.

Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Kristian Høgsberg 2014-03-31 18:00:54 -07:00
commit d148034375
2 changed files with 10 additions and 1 deletions
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10
glamor/glamor.c
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@ -182,7 +182,15 @@ glamor_create_pixmap(ScreenPtr screen, int w, int h, int depth,
pitch = (((w * pixmap->drawable.bitsPerPixel + 7) / 8) + 3) & ~3;
screen->ModifyPixmapHeader(pixmap, w, h, 0, 0, pitch, NULL);
if (type == GLAMOR_MEMORY_MAP || usage == GLAMOR_CREATE_NO_LARGE ||
if (usage == GLAMOR_CREATE_PIXMAP_NO_TEXTURE) {
pixmap_priv->type = GLAMOR_TEXTURE_ONLY;
pixmap_priv->base.box.x1 = 0;
pixmap_priv->base.box.y1 = 0;
pixmap_priv->base.box.x2 = w;
pixmap_priv->base.box.y2 = h;
return pixmap;
}
else if (type == GLAMOR_MEMORY_MAP || usage == GLAMOR_CREATE_NO_LARGE ||
glamor_check_fbo_size(glamor_priv, w, h))
{
pixmap_priv->type = type;