struct pipe_buffer *
svga_screen_buffer_wrap_surface(struct pipe_screen *screen,
enum SVGA3dSurfaceFormat format,
struct svga_winsys_surface *srf)
{
struct pipe_buffer *buf;
struct svga_buffer *sbuf;
struct svga_winsys_screen *sws = svga_winsys_screen(screen);
buf = svga_buffer_create(screen, 0, SVGA_BUFFER_USAGE_WRAPPED, 0);
if (!buf)
return NULL;
sbuf = svga_buffer(buf);
/*
* We are not the creator of this surface and therefore we must not
* cache it for reuse. Set the cacheable flag to zero in the key to
* prevent this.
*/
sbuf->key.format = format;
sbuf->key.cachable = 0;
sws->surface_reference(sws, &sbuf->handle, srf);
return buf;
}
/**
* svga_fence_server_sync
*
* This function imports a fence from another process/device into the current
* software context so that SVGA can synchronize with it.
*/
static void
svga_fence_server_sync(struct pipe_context *pipe,
struct pipe_fence_handle *fence)
{
struct svga_winsys_screen *sws = svga_winsys_screen(pipe->screen);
struct svga_context *svga = svga_context(pipe);
sws->fence_server_sync(sws, &svga->swc->imported_fence_fd, fence);
}
static void
vmw_dri1_present_locked(struct pipe_context *locked_pipe,
struct pipe_surface *surf,
const struct drm_clip_rect *rect,
unsigned int num_clip,
int x_draw, int y_draw,
const struct drm_clip_rect *bbox,
struct pipe_fence_handle **p_fence)
{
struct svga_winsys_surface *srf =
svga_screen_texture_get_winsys_surface(surf->texture);
struct vmw_svga_winsys_surface *vsrf = vmw_svga_winsys_surface(srf);
struct vmw_winsys_screen *vws =
vmw_winsys_screen(svga_winsys_screen(locked_pipe->screen));
struct drm_clip_rect clip;
int i;
struct
{
SVGA3dCmdHeader header;
SVGA3dCmdPresent body;
SVGA3dCopyRect rect;
} cmd;
boolean visible = FALSE;
uint32_t fence_seq = 0;
VMW_FUNC;
cmd.header.id = SVGA_3D_CMD_PRESENT;
cmd.header.size = sizeof cmd.body + sizeof cmd.rect;
cmd.body.sid = vsrf->sid;
for (i = 0; i < num_clip; ++i) {
if (!vmw_dri1_intersect_src_bbox(&clip, x_draw, y_draw, rect++, bbox))
continue;
cmd.rect.x = clip.x1;
cmd.rect.y = clip.y1;
cmd.rect.w = clip.x2 - clip.x1;
cmd.rect.h = clip.y2 - clip.y1;
cmd.rect.srcx = (int)clip.x1 - x_draw;
cmd.rect.srcy = (int)clip.y1 - y_draw;
vmw_printf("%s: Clip %d x %d y %d w %d h %d srcx %d srcy %d\n",
__FUNCTION__,
i,
cmd.rect.x,
cmd.rect.y,
cmd.rect.w, cmd.rect.h, cmd.rect.srcx, cmd.rect.srcy);
vmw_ioctl_command(vws, &cmd, sizeof cmd.header + cmd.header.size,
&fence_seq);
visible = TRUE;
}
*p_fence = (visible) ? vmw_pipe_fence(fence_seq) : NULL;
vmw_svga_winsys_surface_reference(&vsrf, NULL);
}
/**
* svga_create_fence_fd
*
* Wraps a SVGA fence around an imported file descriptor. This
* fd represents a fence from another process/device. The fence created
* here can then be fed into fence_server_sync() so SVGA can synchronize
* with an external process
*/
static void
svga_create_fence_fd(struct pipe_context *pipe,
struct pipe_fence_handle **fence,
int fd,
enum pipe_fd_type type)
{
struct svga_winsys_screen *sws = svga_winsys_screen(pipe->screen);
assert(type == PIPE_FD_TYPE_NATIVE_SYNC);
sws->fence_create_fd(sws, fence, fd);
}
struct svga_winsys_surface *
svga_screen_buffer_get_winsys_surface(struct pipe_buffer *buffer)
{
struct svga_winsys_screen *sws = svga_winsys_screen(buffer->screen);
struct svga_winsys_surface *vsurf = NULL;
assert(svga_buffer(buffer)->key.cachable == 0);
svga_buffer(buffer)->key.cachable = 0;
sws->surface_reference(sws, &vsurf, svga_buffer(buffer)->handle);
return vsurf;
}
static boolean
svga_texture_get_handle(struct pipe_screen *screen,
struct pipe_resource *texture,
struct winsys_handle *whandle)
{
struct svga_winsys_screen *sws = svga_winsys_screen(texture->screen);
unsigned stride;
assert(svga_texture(texture)->key.cachable == 0);
svga_texture(texture)->key.cachable = 0;
stride = util_format_get_nblocksx(texture->format, texture->width0) *
util_format_get_blocksize(texture->format);
return sws->surface_get_handle(sws, svga_texture(texture)->handle, stride, whandle);
}
static struct pipe_buffer *
vmw_drm_buffer_from_handle(struct drm_api *drm_api,
struct pipe_screen *screen,
const char *name,
unsigned handle)
{
struct vmw_svga_winsys_surface *vsrf;
struct svga_winsys_surface *ssrf;
struct vmw_winsys_screen *vws =
vmw_winsys_screen(svga_winsys_screen(screen));
struct pipe_buffer *buf;
union drm_vmw_surface_reference_arg arg;
struct drm_vmw_surface_arg *req = &arg.req;
struct drm_vmw_surface_create_req *rep = &arg.rep;
int ret;
int i;
/**
* The vmware device specific handle is the hardware SID.
* FIXME: We probably want to move this to the ioctl implementations.
*/
memset(&arg, 0, sizeof(arg));
req->sid = handle;
ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_REF_SURFACE,
&arg, sizeof(arg));
if (ret) {
fprintf(stderr, "Failed referencing shared surface. SID %d.\n"
"Error %d (%s).\n",
handle, ret, strerror(-ret));
return NULL;
}
if (rep->mip_levels[0] != 1) {
fprintf(stderr, "Incorrect number of mipmap levels on shared surface."
" SID %d, levels %d\n",
handle, rep->mip_levels[0]);
goto out_mip;
}
for (i=1; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
if (rep->mip_levels[i] != 0) {
fprintf(stderr, "Incorrect number of faces levels on shared surface."
" SID %d, face %d present.\n",
handle, i);
goto out_mip;
}
}
vsrf = CALLOC_STRUCT(vmw_svga_winsys_surface);
if (!vsrf)
goto out_mip;
pipe_reference_init(&vsrf->refcnt, 1);
p_atomic_set(&vsrf->validated, 0);
vsrf->sid = handle;
ssrf = svga_winsys_surface(vsrf);
buf = svga_screen_buffer_wrap_surface(screen, rep->format, ssrf);
if (!buf)
vmw_svga_winsys_surface_reference(&vsrf, NULL);
return buf;
out_mip:
vmw_ioctl_surface_destroy(vws, handle);
return NULL;
}
