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spice: add cursor_dmabuf support

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Add support for cursor dmabufs.  qemu has to render the cursor for
that, so in case a cursor is present qemu allocates a new dmabuf, blits
the scanout, blends in the pointer and passes on the new dmabuf to
spice-server.  Without cursor qemu continues to simply pass on the
scanout dmabuf as-is.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20180308090618.30147-4-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann 2018-03-08 10:06:17 +01:00
parent cd2452b279
commit b153f9019b
3 changed files with 121 additions and 5 deletions
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9
include/ui/spice-display.h
View file

@ -122,6 +122,15 @@ struct SimpleSpiceDisplay {
int gl_updates;
bool have_scanout;
bool have_surface;
QemuDmaBuf *guest_dmabuf;
bool guest_dmabuf_refresh;
bool render_cursor;
egl_fb guest_fb;
egl_fb blit_fb;
egl_fb cursor_fb;
bool have_hot;
#endif
};

114
ui/spice-display.c
View file

@ -941,25 +941,126 @@ static void qemu_spice_gl_scanout_dmabuf(DisplayChangeListener *dcl,
{
SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
/* note: spice server will close the fd, so hand over a dup */
spice_qxl_gl_scanout(&ssd->qxl, dup(dmabuf->fd),
dmabuf->width, dmabuf->height,
dmabuf->stride, dmabuf->fourcc, false);
qemu_spice_gl_monitor_config(ssd, 0, 0, dmabuf->width, dmabuf->height);
ssd->guest_dmabuf = dmabuf;
ssd->guest_dmabuf_refresh = true;
ssd->have_surface = false;
ssd->have_scanout = true;
}
static void qemu_spice_gl_cursor_dmabuf(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf, bool have_hot,
uint32_t hot_x, uint32_t hot_y)
{
SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
ssd->have_hot = have_hot;
ssd->hot_x = hot_x;
ssd->hot_y = hot_y;
trace_qemu_spice_gl_cursor(ssd->qxl.id, dmabuf != NULL, have_hot);
if (dmabuf) {
egl_dmabuf_import_texture(dmabuf);
if (!dmabuf->texture) {
return;
}
egl_fb_setup_for_tex(&ssd->cursor_fb, dmabuf->width, dmabuf->height,
dmabuf->texture, false);
} else {
egl_fb_destroy(&ssd->cursor_fb);
}
}
static void qemu_spice_gl_cursor_position(DisplayChangeListener *dcl,
uint32_t pos_x, uint32_t pos_y)
{
SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
ssd->ptr_x = pos_x;
ssd->ptr_y = pos_y;
}
static void qemu_spice_gl_release_dmabuf(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf)
{
SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
if (ssd->guest_dmabuf == dmabuf) {
ssd->guest_dmabuf = NULL;
ssd->guest_dmabuf_refresh = false;
}
egl_dmabuf_release_texture(dmabuf);
}
static void qemu_spice_gl_update(DisplayChangeListener *dcl,
uint32_t x, uint32_t y, uint32_t w, uint32_t h)
{
SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
EGLint stride = 0, fourcc = 0;
bool render_cursor = false;
bool y_0_top = false; /* FIXME */
uint64_t cookie;
int fd;
if (!ssd->have_scanout) {
return;
}
if (ssd->cursor_fb.texture) {
render_cursor = true;
}
if (ssd->render_cursor != render_cursor) {
ssd->render_cursor = render_cursor;
ssd->guest_dmabuf_refresh = true;
egl_fb_destroy(&ssd->blit_fb);
}
if (ssd->guest_dmabuf_refresh) {
QemuDmaBuf *dmabuf = ssd->guest_dmabuf;
if (render_cursor) {
egl_dmabuf_import_texture(dmabuf);
if (!dmabuf->texture) {
return;
}
/* source framebuffer */
egl_fb_setup_for_tex(&ssd->guest_fb,
dmabuf->width, dmabuf->height,
dmabuf->texture, false);
/* dest framebuffer */
if (ssd->blit_fb.width != dmabuf->width ||
ssd->blit_fb.height != dmabuf->height) {
trace_qemu_spice_gl_render_dmabuf(ssd->qxl.id, dmabuf->width,
dmabuf->height);
egl_fb_destroy(&ssd->blit_fb);
egl_fb_setup_new_tex(&ssd->blit_fb,
dmabuf->width, dmabuf->height);
fd = egl_get_fd_for_texture(ssd->blit_fb.texture,
&stride, &fourcc);
spice_qxl_gl_scanout(&ssd->qxl, fd,
dmabuf->width, dmabuf->height,
stride, fourcc, false);
}
} else {
trace_qemu_spice_gl_forward_dmabuf(ssd->qxl.id,
dmabuf->width, dmabuf->height);
/* note: spice server will close the fd, so hand over a dup */
spice_qxl_gl_scanout(&ssd->qxl, dup(dmabuf->fd),
dmabuf->width, dmabuf->height,
dmabuf->stride, dmabuf->fourcc, false);
}
qemu_spice_gl_monitor_config(ssd, 0, 0, dmabuf->width, dmabuf->height);
ssd->guest_dmabuf_refresh = false;
}
if (render_cursor) {
egl_texture_blit(ssd->gls, &ssd->blit_fb, &ssd->guest_fb,
!y_0_top);
egl_texture_blend(ssd->gls, &ssd->blit_fb, &ssd->cursor_fb,
!y_0_top, ssd->ptr_x, ssd->ptr_y);
glFlush();
}
trace_qemu_spice_gl_update(ssd->qxl.id, w, h, x, y);
qemu_spice_gl_block(ssd, true);
@ -984,6 +1085,9 @@ static const DisplayChangeListenerOps display_listener_gl_ops = {
.dpy_gl_scanout_disable = qemu_spice_gl_scanout_disable,
.dpy_gl_scanout_texture = qemu_spice_gl_scanout_texture,
.dpy_gl_scanout_dmabuf = qemu_spice_gl_scanout_dmabuf,
.dpy_gl_cursor_dmabuf = qemu_spice_gl_cursor_dmabuf,
.dpy_gl_cursor_position = qemu_spice_gl_cursor_position,
.dpy_gl_release_dmabuf = qemu_spice_gl_release_dmabuf,
.dpy_gl_update = qemu_spice_gl_update,
};

3
ui/trace-events
View file

@ -83,6 +83,9 @@ qemu_spice_ui_info(int qid, uint32_t width, uint32_t height) "%d %dx%d"
qemu_spice_gl_surface(int qid, uint32_t w, uint32_t h, uint32_t fourcc) "%d %dx%d, fourcc 0x%x"
qemu_spice_gl_scanout_disable(int qid) "%d"
qemu_spice_gl_scanout_texture(int qid, uint32_t w, uint32_t h, uint32_t fourcc) "%d %dx%d, fourcc 0x%x"
qemu_spice_gl_cursor(int qid, bool enabled, bool hotspot) "%d enabled %d, hotspot %d"
qemu_spice_gl_forward_dmabuf(int qid, uint32_t width, uint32_t height) "%d %dx%d"
qemu_spice_gl_render_dmabuf(int qid, uint32_t width, uint32_t height) "%d %dx%d"
qemu_spice_gl_update(int qid, uint32_t x, uint32_t y, uint32_t w, uint32_t h) "%d +%d+%d %dx%d"
# ui/keymaps.c