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xserver-multidpi/hw/xwayland/xwayland-glamor-gbm.c

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/*
* Copyright © 2011-2014 Intel Corporation
* Copyright © 2017 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including
* the next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Lyude Paul <lyude@redhat.com>
*
*/
#include "xwayland.h"
#include <fcntl.h>
#include <sys/stat.h>
#include <xf86drm.h>
#include <drm_fourcc.h>
#define MESA_EGL_NO_X11_HEADERS
#define EGL_NO_X11
#include <gbm.h>
#include <glamor_egl.h>
#include <glamor.h>
#include <glamor_context.h>
#include <dri3.h>
#include "drm-client-protocol.h"
struct xwl_gbm_private {
char *device_name;
struct gbm_device *gbm;
struct wl_drm *drm;
struct zwp_linux_dmabuf_v1 *dmabuf;
int drm_fd;
int fd_render_node;
Bool drm_authenticated;
uint32_t capabilities;
int dmabuf_capable;
};
struct xwl_pixmap {
struct wl_buffer *buffer;
EGLImage image;
unsigned int texture;
struct gbm_bo *bo;
};
static DevPrivateKeyRec xwl_gbm_private_key;
static DevPrivateKeyRec xwl_auth_state_private_key;
static inline struct xwl_gbm_private *
xwl_gbm_get(struct xwl_screen *xwl_screen)
{
return dixLookupPrivate(&xwl_screen->screen->devPrivates,
&xwl_gbm_private_key);
}
static uint32_t
gbm_format_for_depth(int depth)
{
switch (depth) {
case 16:
return GBM_FORMAT_RGB565;
case 24:
return GBM_FORMAT_XRGB8888;
case 30:
return GBM_FORMAT_ARGB2101010;
default:
ErrorF("unexpected depth: %d\n", depth);
case 32:
return GBM_FORMAT_ARGB8888;
}
}
static uint32_t
wl_drm_format_for_depth(int depth)
{
switch (depth) {
case 15:
return WL_DRM_FORMAT_XRGB1555;
case 16:
return WL_DRM_FORMAT_RGB565;
case 24:
return WL_DRM_FORMAT_XRGB8888;
case 30:
return WL_DRM_FORMAT_ARGB2101010;
default:
ErrorF("unexpected depth: %d\n", depth);
case 32:
return WL_DRM_FORMAT_ARGB8888;
}
}
static char
is_fd_render_node(int fd)
{
struct stat render;
if (fstat(fd, &render))
return 0;
if (!S_ISCHR(render.st_mode))
return 0;
if (render.st_rdev & 0x80)
return 1;
return 0;
}
static char
is_device_path_render_node (const char *device_path)
{
char is_render_node;
int fd;
fd = open(device_path, O_RDWR | O_CLOEXEC);
if (fd < 0)
return 0;
is_render_node = is_fd_render_node(fd);
close(fd);
return is_render_node;
}
static PixmapPtr
xwl_glamor_gbm_create_pixmap_for_bo(ScreenPtr screen, struct gbm_bo *bo,
int depth)
{
PixmapPtr pixmap;
struct xwl_pixmap *xwl_pixmap;
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
xwl_pixmap = malloc(sizeof *xwl_pixmap);
if (xwl_pixmap == NULL)
return NULL;
pixmap = glamor_create_pixmap(screen,
gbm_bo_get_width(bo),
gbm_bo_get_height(bo),
depth,
GLAMOR_CREATE_PIXMAP_NO_TEXTURE);
if (!pixmap) {
free(xwl_pixmap);
return NULL;
}
xwl_glamor_egl_make_current(xwl_screen);
xwl_pixmap->bo = bo;
xwl_pixmap->buffer = NULL;
xwl_pixmap->image = eglCreateImageKHR(xwl_screen->egl_display,
xwl_screen->egl_context,
EGL_NATIVE_PIXMAP_KHR,
xwl_pixmap->bo, NULL);
if (xwl_pixmap->image == EGL_NO_IMAGE_KHR)
goto error;
glGenTextures(1, &xwl_pixmap->texture);
glBindTexture(GL_TEXTURE_2D, xwl_pixmap->texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, xwl_pixmap->image);
if (eglGetError() != EGL_SUCCESS)
goto error;
glBindTexture(GL_TEXTURE_2D, 0);
if (!glamor_set_pixmap_texture(pixmap, xwl_pixmap->texture))
goto error;
glamor_set_pixmap_type(pixmap, GLAMOR_TEXTURE_DRM);
xwl_pixmap_set_private(pixmap, xwl_pixmap);
return pixmap;
error:
if (xwl_pixmap->image != EGL_NO_IMAGE_KHR)
eglDestroyImageKHR(xwl_screen->egl_display, xwl_pixmap->image);
if (pixmap)
glamor_destroy_pixmap(pixmap);
free(xwl_pixmap);
return NULL;
}
static PixmapPtr
xwl_glamor_gbm_create_pixmap(ScreenPtr screen,
int width, int height, int depth,
unsigned int hint)
{
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
struct gbm_bo *bo;
PixmapPtr pixmap = NULL;
if (width > 0 && height > 0 && depth >= 15 &&
(hint == CREATE_PIXMAP_USAGE_BACKING_PIXMAP ||
hint == CREATE_PIXMAP_USAGE_SHARED ||
(xwl_screen->rootless && hint == 0))) {
uint32_t format = gbm_format_for_depth(depth);
#ifdef GBM_BO_WITH_MODIFIERS
if (xwl_gbm->dmabuf_capable) {
uint32_t num_modifiers;
uint64_t *modifiers = NULL;
glamor_get_modifiers(screen, format, &num_modifiers, &modifiers);
bo = gbm_bo_create_with_modifiers(xwl_gbm->gbm, width, height,
format, modifiers, num_modifiers);
free(modifiers);
}
else
#endif
{
bo = gbm_bo_create(xwl_gbm->gbm, width, height, format,
GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
}
if (bo) {
pixmap = xwl_glamor_gbm_create_pixmap_for_bo(screen, bo, depth);
if (!pixmap)
gbm_bo_destroy(bo);
}
}
if (!pixmap)
pixmap = glamor_create_pixmap(screen, width, height, depth, hint);
return pixmap;
}
static Bool
xwl_glamor_gbm_destroy_pixmap(PixmapPtr pixmap)
{
struct xwl_screen *xwl_screen = xwl_screen_get(pixmap->drawable.pScreen);
struct xwl_pixmap *xwl_pixmap = xwl_pixmap_get(pixmap);
if (xwl_pixmap && pixmap->refcnt == 1) {
if (xwl_pixmap->buffer)
wl_buffer_destroy(xwl_pixmap->buffer);
eglDestroyImageKHR(xwl_screen->egl_display, xwl_pixmap->image);
if (xwl_pixmap->bo)
gbm_bo_destroy(xwl_pixmap->bo);
free(xwl_pixmap);
}
return glamor_destroy_pixmap(pixmap);
}
static struct wl_buffer *
xwl_glamor_gbm_get_wl_buffer_for_pixmap(PixmapPtr pixmap,
Bool *created)
{
struct xwl_screen *xwl_screen = xwl_screen_get(pixmap->drawable.pScreen);
struct xwl_pixmap *xwl_pixmap = xwl_pixmap_get(pixmap);
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
unsigned short width = pixmap->drawable.width;
unsigned short height = pixmap->drawable.height;
int prime_fd;
int num_planes;
uint32_t strides[4];
uint32_t offsets[4];
uint64_t modifier;
int i;
if (xwl_pixmap == NULL)
return NULL;
if (xwl_pixmap->buffer) {
/* Buffer already exists. Return it and inform caller if interested. */
if (created)
*created = FALSE;
return xwl_pixmap->buffer;
}
/* Buffer does not exist yet. Create now and inform caller if interested. */
if (created)
*created = TRUE;
if (!xwl_pixmap->bo)
return NULL;
prime_fd = gbm_bo_get_fd(xwl_pixmap->bo);
if (prime_fd == -1)
return NULL;
#ifdef GBM_BO_WITH_MODIFIERS
num_planes = gbm_bo_get_plane_count(xwl_pixmap->bo);
modifier = gbm_bo_get_modifier(xwl_pixmap->bo);
for (i = 0; i < num_planes; i++) {
strides[i] = gbm_bo_get_stride_for_plane(xwl_pixmap->bo, i);
offsets[i] = gbm_bo_get_offset(xwl_pixmap->bo, i);
}
#else
num_planes = 1;
modifier = DRM_FORMAT_MOD_INVALID;
strides[0] = gbm_bo_get_stride(xwl_pixmap->bo);
offsets[0] = 0;
#endif
if (xwl_gbm->dmabuf && modifier != DRM_FORMAT_MOD_INVALID) {
struct zwp_linux_buffer_params_v1 *params;
params = zwp_linux_dmabuf_v1_create_params(xwl_gbm->dmabuf);
for (i = 0; i < num_planes; i++) {
zwp_linux_buffer_params_v1_add(params, prime_fd, i,
offsets[i], strides[i],
modifier >> 32, modifier & 0xffffffff);
}
xwl_pixmap->buffer =
zwp_linux_buffer_params_v1_create_immed(params, width, height,
wl_drm_format_for_depth(pixmap->drawable.depth),
0);
zwp_linux_buffer_params_v1_destroy(params);
} else if (num_planes == 1) {
xwl_pixmap->buffer =
wl_drm_create_prime_buffer(xwl_gbm->drm, prime_fd, width, height,
wl_drm_format_for_depth(pixmap->drawable.depth),
0, gbm_bo_get_stride(xwl_pixmap->bo),
0, 0,
0, 0);
}
close(prime_fd);
return xwl_pixmap->buffer;
}
static void
xwl_glamor_gbm_cleanup(struct xwl_screen *xwl_screen)
{
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
if (xwl_gbm->device_name)
free(xwl_gbm->device_name);
if (xwl_gbm->drm_fd)
close(xwl_gbm->drm_fd);
if (xwl_gbm->drm)
wl_drm_destroy(xwl_gbm->drm);
if (xwl_gbm->gbm)
gbm_device_destroy(xwl_gbm->gbm);
free(xwl_gbm);
}
struct xwl_auth_state {
int fd;
ClientPtr client;
struct wl_callback *callback;
};
static void
free_xwl_auth_state(ClientPtr pClient, struct xwl_auth_state *state)
{
dixSetPrivate(&pClient->devPrivates, &xwl_auth_state_private_key, NULL);
if (state) {
wl_callback_destroy(state->callback);
free(state);
}
}
static void
xwl_auth_state_client_callback(CallbackListPtr *pcbl, void *unused, void *data)
{
NewClientInfoRec *clientinfo = (NewClientInfoRec *) data;
ClientPtr pClient = clientinfo->client;
struct xwl_auth_state *state;
switch (pClient->clientState) {
case ClientStateGone:
case ClientStateRetained:
state = dixLookupPrivate(&pClient->devPrivates,
&xwl_auth_state_private_key);
free_xwl_auth_state(pClient, state);
break;
default:
break;
}
}
static void
sync_callback(void *data, struct wl_callback *callback, uint32_t serial)
{
struct xwl_auth_state *state = data;
ClientPtr client = state->client;
/* if the client is gone, the callback is cancelled so it's safe to
* assume the client is still in ClientStateRunning at this point...
*/
dri3_send_open_reply(client, state->fd);
AttendClient(client);
free_xwl_auth_state(client, state);
}
static const struct wl_callback_listener sync_listener = {
sync_callback
};
static int
xwl_dri3_open_client(ClientPtr client,
ScreenPtr screen,
RRProviderPtr provider,
int *pfd)
{
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
struct xwl_auth_state *state;
drm_magic_t magic;
int fd;
fd = open(xwl_gbm->device_name, O_RDWR | O_CLOEXEC);
if (fd < 0)
return BadAlloc;
if (xwl_gbm->fd_render_node) {
*pfd = fd;
return Success;
}
state = malloc(sizeof *state);
if (state == NULL) {
close(fd);
return BadAlloc;
}
state->client = client;
state->fd = fd;
if (drmGetMagic(state->fd, &magic) < 0) {
close(state->fd);
free(state);
return BadMatch;
}
wl_drm_authenticate(xwl_gbm->drm, magic);
state->callback = wl_display_sync(xwl_screen->display);
wl_callback_add_listener(state->callback, &sync_listener, state);
dixSetPrivate(&client->devPrivates, &xwl_auth_state_private_key, state);
IgnoreClient(client);
return Success;
}
_X_EXPORT PixmapPtr
glamor_pixmap_from_fds(ScreenPtr screen, CARD8 num_fds, const int *fds,
CARD16 width, CARD16 height,
const CARD32 *strides, const CARD32 *offsets,
CARD8 depth, CARD8 bpp, uint64_t modifier)
{
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
struct gbm_bo *bo = NULL;
PixmapPtr pixmap;
int i;
if (width == 0 || height == 0 || num_fds == 0 ||
depth < 15 || bpp != BitsPerPixel(depth) ||
strides[0] < width * bpp / 8)
goto error;
if (xwl_gbm->dmabuf_capable && modifier != DRM_FORMAT_MOD_INVALID) {
#ifdef GBM_BO_WITH_MODIFIERS
struct gbm_import_fd_modifier_data data;
data.width = width;
data.height = height;
data.num_fds = num_fds;
data.format = gbm_format_for_depth(depth);
data.modifier = modifier;
for (i = 0; i < num_fds; i++) {
data.fds[i] = fds[i];
data.strides[i] = strides[i];
data.offsets[i] = offsets[i];
}
bo = gbm_bo_import(xwl_gbm->gbm, GBM_BO_IMPORT_FD_MODIFIER, &data, 0);
#endif
} else if (num_fds == 1) {
struct gbm_import_fd_data data;
data.fd = fds[0];
data.width = width;
data.height = height;
data.stride = strides[0];
data.format = gbm_format_for_depth(depth);
bo = gbm_bo_import(xwl_gbm->gbm, GBM_BO_IMPORT_FD, &data,
GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
} else {
goto error;
}
if (bo == NULL)
goto error;
pixmap = xwl_glamor_gbm_create_pixmap_for_bo(screen, bo, depth);
if (pixmap == NULL) {
gbm_bo_destroy(bo);
goto error;
}
return pixmap;
error:
return NULL;
}
_X_EXPORT int
glamor_egl_fds_from_pixmap(ScreenPtr screen, PixmapPtr pixmap, int *fds,
uint32_t *strides, uint32_t *offsets,
uint64_t *modifier)
{
struct xwl_pixmap *xwl_pixmap;
#ifdef GBM_BO_WITH_MODIFIERS
uint32_t num_fds;
int i;
#endif
xwl_pixmap = xwl_pixmap_get(pixmap);
if (xwl_pixmap == NULL)
return 0;
if (!xwl_pixmap->bo)
return 0;
#ifdef GBM_BO_WITH_MODIFIERS
num_fds = gbm_bo_get_plane_count(xwl_pixmap->bo);
*modifier = gbm_bo_get_modifier(xwl_pixmap->bo);
for (i = 0; i < num_fds; i++) {
fds[i] = gbm_bo_get_fd(xwl_pixmap->bo);
strides[i] = gbm_bo_get_stride_for_plane(xwl_pixmap->bo, i);
offsets[i] = gbm_bo_get_offset(xwl_pixmap->bo, i);
}
return num_fds;
#else
*modifier = DRM_FORMAT_MOD_INVALID;
fds[0] = gbm_bo_get_fd(xwl_pixmap->bo);
strides[0] = gbm_bo_get_stride(xwl_pixmap->bo);
offsets[0] = 0;
return 1;
#endif
}
/* Not actually used, just defined here so there's something for
* _glamor_egl_fds_from_pixmap() to link against
*/
_X_EXPORT int
glamor_egl_fd_from_pixmap(ScreenPtr screen, PixmapPtr pixmap,
CARD16 *stride, CARD32 *size)
{
return -1;
}
_X_EXPORT Bool
glamor_get_formats(ScreenPtr screen,
CARD32 *num_formats, CARD32 **formats)
{
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
int i;
/* Explicitly zero the count as the caller may ignore the return value */
*num_formats = 0;
if (!xwl_gbm->dmabuf_capable || !xwl_gbm->dmabuf)
return FALSE;
if (xwl_screen->num_formats == 0)
return TRUE;
*formats = calloc(xwl_screen->num_formats, sizeof(CARD32));
if (*formats == NULL)
return FALSE;
for (i = 0; i < xwl_screen->num_formats; i++)
(*formats)[i] = xwl_screen->formats[i].format;
*num_formats = xwl_screen->num_formats;
return TRUE;
}
_X_EXPORT Bool
glamor_get_modifiers(ScreenPtr screen, uint32_t format,
uint32_t *num_modifiers, uint64_t **modifiers)
{
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
struct xwl_format *xwl_format = NULL;
int i;
/* Explicitly zero the count as the caller may ignore the return value */
*num_modifiers = 0;
if (!xwl_gbm->dmabuf_capable || !xwl_gbm->dmabuf)
return FALSE;
if (xwl_screen->num_formats == 0)
return TRUE;
for (i = 0; i < xwl_screen->num_formats; i++) {
if (xwl_screen->formats[i].format == format) {
xwl_format = &xwl_screen->formats[i];
break;
}
}
if (!xwl_format)
return FALSE;
*modifiers = calloc(xwl_format->num_modifiers, sizeof(uint64_t));
if (*modifiers == NULL)
return FALSE;
for (i = 0; i < xwl_format->num_modifiers; i++)
(*modifiers)[i] = xwl_format->modifiers[i];
*num_modifiers = xwl_format->num_modifiers;
return TRUE;
}
static const dri3_screen_info_rec xwl_dri3_info = {
.version = 2,
.open = NULL,
.pixmap_from_fds = glamor_pixmap_from_fds,
.fds_from_pixmap = glamor_fds_from_pixmap,
.open_client = xwl_dri3_open_client,
.get_formats = glamor_get_formats,
.get_modifiers = glamor_get_modifiers,
.get_drawable_modifiers = glamor_get_drawable_modifiers,
};
static const char *
get_render_node_path_for_device(const drmDevicePtr drm_device,
const char *device_path)
{
char *render_node_path = NULL;
char device_found = 0;
int i;
for (i = 0; i < DRM_NODE_MAX; i++) {
if ((drm_device->available_nodes & (1 << i)) == 0)
continue;
if (!strcmp (device_path, drm_device->nodes[i]))
device_found = 1;
if (is_device_path_render_node(drm_device->nodes[i]))
render_node_path = drm_device->nodes[i];
if (device_found && render_node_path)
return render_node_path;
}
return NULL;
}
static char *
get_render_node_path(const char *device_path)
{
drmDevicePtr *devices = NULL;
char *render_node_path = NULL;
int i, n_devices, max_devices;
max_devices = drmGetDevices2(0, NULL, 0);
if (max_devices <= 0)
goto out;
devices = calloc(max_devices, sizeof(drmDevicePtr));
if (!devices)
goto out;
n_devices = drmGetDevices2(0, devices, max_devices);
if (n_devices < 0)
goto out;
for (i = 0; i < n_devices; i++) {
const char *node_path = get_render_node_path_for_device(devices[i],
device_path);
if (node_path) {
render_node_path = strdup(node_path);
break;
}
}
out:
free(devices);
return render_node_path;
}
static void
xwl_drm_handle_device(void *data, struct wl_drm *drm, const char *device)
{
struct xwl_screen *xwl_screen = data;
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
drm_magic_t magic;
char *render_node_path = NULL;
if (!is_device_path_render_node(device))
render_node_path = get_render_node_path(device);
if (render_node_path)
xwl_gbm->device_name = render_node_path;
else
xwl_gbm->device_name = strdup(device);
if (!xwl_gbm->device_name) {
xwl_glamor_gbm_cleanup(xwl_screen);
return;
}
xwl_gbm->drm_fd = open(xwl_gbm->device_name, O_RDWR | O_CLOEXEC);
if (xwl_gbm->drm_fd == -1) {
ErrorF("wayland-egl: could not open %s (%s)\n",
xwl_gbm->device_name, strerror(errno));
xwl_glamor_gbm_cleanup(xwl_screen);
return;
}
if (is_fd_render_node(xwl_gbm->drm_fd)) {
xwl_gbm->fd_render_node = 1;
xwl_screen->expecting_event--;
} else {
drmGetMagic(xwl_gbm->drm_fd, &magic);
wl_drm_authenticate(xwl_gbm->drm, magic);
}
}
static void
xwl_drm_handle_format(void *data, struct wl_drm *drm, uint32_t format)
{
}
static void
xwl_drm_handle_authenticated(void *data, struct wl_drm *drm)
{
struct xwl_screen *xwl_screen = data;
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
xwl_gbm->drm_authenticated = TRUE;
xwl_screen->expecting_event--;
}
static void
xwl_drm_handle_capabilities(void *data, struct wl_drm *drm, uint32_t value)
{
xwl_gbm_get(data)->capabilities = value;
}
static const struct wl_drm_listener xwl_drm_listener = {
xwl_drm_handle_device,
xwl_drm_handle_format,
xwl_drm_handle_authenticated,
xwl_drm_handle_capabilities
};
static void
xwl_dmabuf_handle_format(void *data, struct zwp_linux_dmabuf_v1 *dmabuf,
uint32_t format)
{
}
static void
xwl_dmabuf_handle_modifier(void *data, struct zwp_linux_dmabuf_v1 *dmabuf,
uint32_t format, uint32_t modifier_hi,
uint32_t modifier_lo)
{
struct xwl_screen *xwl_screen = data;
struct xwl_format *xwl_format = NULL;
int i;
if (modifier_hi == (DRM_FORMAT_MOD_INVALID >> 32) &&
modifier_lo == (DRM_FORMAT_MOD_INVALID & 0xffffffff))
return;
for (i = 0; i < xwl_screen->num_formats; i++) {
if (xwl_screen->formats[i].format == format) {
xwl_format = &xwl_screen->formats[i];
break;
}
}
if (xwl_format == NULL) {
xwl_screen->num_formats++;
xwl_screen->formats = realloc(xwl_screen->formats,
xwl_screen->num_formats * sizeof(*xwl_format));
if (!xwl_screen->formats)
return;
xwl_format = &xwl_screen->formats[xwl_screen->num_formats - 1];
xwl_format->format = format;
xwl_format->num_modifiers = 0;
xwl_format->modifiers = NULL;
}
xwl_format->num_modifiers++;
xwl_format->modifiers = realloc(xwl_format->modifiers,
xwl_format->num_modifiers * sizeof(uint64_t));
if (!xwl_format->modifiers)
return;
xwl_format->modifiers[xwl_format->num_modifiers - 1] = (uint64_t) modifier_lo;
xwl_format->modifiers[xwl_format->num_modifiers - 1] |= (uint64_t) modifier_hi << 32;
}
static const struct zwp_linux_dmabuf_v1_listener xwl_dmabuf_listener = {
.format = xwl_dmabuf_handle_format,
.modifier = xwl_dmabuf_handle_modifier
};
Bool
xwl_screen_set_drm_interface(struct xwl_screen *xwl_screen,
uint32_t id, uint32_t version)
{
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
if (version < 2)
return FALSE;
xwl_gbm->drm =
wl_registry_bind(xwl_screen->registry, id, &wl_drm_interface, 2);
wl_drm_add_listener(xwl_gbm->drm, &xwl_drm_listener, xwl_screen);
xwl_screen->expecting_event++;
return TRUE;
}
Bool
xwl_screen_set_dmabuf_interface(struct xwl_screen *xwl_screen,
uint32_t id, uint32_t version)
{
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
if (version < 3)
return FALSE;
xwl_gbm->dmabuf =
wl_registry_bind(xwl_screen->registry, id, &zwp_linux_dmabuf_v1_interface, 3);
zwp_linux_dmabuf_v1_add_listener(xwl_gbm->dmabuf, &xwl_dmabuf_listener, xwl_screen);
return TRUE;
}
static Bool
xwl_glamor_gbm_init_wl_registry(struct xwl_screen *xwl_screen,
struct wl_registry *wl_registry,
uint32_t id, const char *name,
uint32_t version)
{
if (strcmp(name, "wl_drm") == 0) {
xwl_screen_set_drm_interface(xwl_screen, id, version);
return TRUE;
} else if (strcmp(name, "zwp_linux_dmabuf_v1") == 0) {
xwl_screen_set_dmabuf_interface(xwl_screen, id, version);
return TRUE;
}
/* no match */
return FALSE;
}
static Bool
xwl_glamor_gbm_has_egl_extension(void)
{
return (epoxy_has_egl_extension(NULL, "EGL_MESA_platform_gbm") ||
epoxy_has_egl_extension(NULL, "EGL_KHR_platform_gbm"));
}
static Bool
xwl_glamor_gbm_has_wl_interfaces(struct xwl_screen *xwl_screen)
{
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
if (xwl_gbm->drm == NULL) {
ErrorF("glamor: 'wl_drm' not supported\n");
return FALSE;
}
return TRUE;
}
static Bool
xwl_glamor_gbm_init_egl(struct xwl_screen *xwl_screen)
{
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
EGLint major, minor;
Bool egl_initialized = FALSE;
static const EGLint config_attribs_core[] = {
EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR,
EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR,
EGL_CONTEXT_MAJOR_VERSION_KHR,
GLAMOR_GL_CORE_VER_MAJOR,
EGL_CONTEXT_MINOR_VERSION_KHR,
GLAMOR_GL_CORE_VER_MINOR,
EGL_NONE
};
const GLubyte *renderer;
if (!xwl_gbm->fd_render_node && !xwl_gbm->drm_authenticated) {
ErrorF("Failed to get wl_drm, disabling Glamor and DRI3\n");
return FALSE;
}
xwl_gbm->gbm = gbm_create_device(xwl_gbm->drm_fd);
if (!xwl_gbm->gbm) {
ErrorF("couldn't create gbm device\n");
goto error;
}
xwl_screen->egl_display = glamor_egl_get_display(EGL_PLATFORM_GBM_MESA,
xwl_gbm->gbm);
if (xwl_screen->egl_display == EGL_NO_DISPLAY) {
ErrorF("glamor_egl_get_display() failed\n");
goto error;
}
egl_initialized = eglInitialize(xwl_screen->egl_display, &major, &minor);
if (!egl_initialized) {
ErrorF("eglInitialize() failed\n");
goto error;
}
eglBindAPI(EGL_OPENGL_API);
xwl_screen->egl_context = eglCreateContext(
xwl_screen->egl_display, NULL, EGL_NO_CONTEXT, config_attribs_core);
if (xwl_screen->egl_context == EGL_NO_CONTEXT) {
xwl_screen->egl_context = eglCreateContext(
xwl_screen->egl_display, NULL, EGL_NO_CONTEXT, NULL);
}
if (xwl_screen->egl_context == EGL_NO_CONTEXT) {
ErrorF("Failed to create EGL context\n");
goto error;
}
if (!eglMakeCurrent(xwl_screen->egl_display,
EGL_NO_SURFACE, EGL_NO_SURFACE,
xwl_screen->egl_context)) {
ErrorF("Failed to make EGL context current\n");
goto error;
}
renderer = glGetString(GL_RENDERER);
if (!renderer) {
ErrorF("glGetString() returned NULL, your GL is broken\n");
goto error;
}
if (strstr((const char *)renderer, "llvmpipe")) {
ErrorF("Refusing to try glamor on llvmpipe\n");
goto error;
}
if (!epoxy_has_gl_extension("GL_OES_EGL_image")) {
ErrorF("GL_OES_EGL_image not available\n");
goto error;
}
if (epoxy_has_egl_extension(xwl_screen->egl_display,
"EXT_image_dma_buf_import") &&
epoxy_has_egl_extension(xwl_screen->egl_display,
"EXT_image_dma_buf_import_modifiers"))
xwl_gbm->dmabuf_capable = TRUE;
return TRUE;
error:
if (xwl_screen->egl_context != EGL_NO_CONTEXT) {
eglDestroyContext(xwl_screen->egl_display, xwl_screen->egl_context);
xwl_screen->egl_context = EGL_NO_CONTEXT;
}
if (xwl_screen->egl_display != EGL_NO_DISPLAY) {
eglTerminate(xwl_screen->egl_display);
xwl_screen->egl_display = EGL_NO_DISPLAY;
}
xwl_glamor_gbm_cleanup(xwl_screen);
return FALSE;
}
static Bool
xwl_glamor_gbm_init_screen(struct xwl_screen *xwl_screen)
{
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
if (!dri3_screen_init(xwl_screen->screen, &xwl_dri3_info)) {
ErrorF("Failed to initialize dri3\n");
goto error;
}
if (xwl_gbm->fd_render_node)
goto skip_drm_auth;
if (!dixRegisterPrivateKey(&xwl_auth_state_private_key, PRIVATE_CLIENT,
0)) {
ErrorF("Failed to register private key\n");
goto error;
}
if (!AddCallback(&ClientStateCallback, xwl_auth_state_client_callback,
NULL)) {
ErrorF("Failed to add client state callback\n");
goto error;
}
skip_drm_auth:
xwl_screen->screen->CreatePixmap = xwl_glamor_gbm_create_pixmap;
xwl_screen->screen->DestroyPixmap = xwl_glamor_gbm_destroy_pixmap;
return TRUE;
error:
xwl_glamor_gbm_cleanup(xwl_screen);
return FALSE;
}
void
xwl_glamor_init_gbm(struct xwl_screen *xwl_screen)
{
struct xwl_gbm_private *xwl_gbm;
xwl_screen->gbm_backend.is_available = FALSE;
if (!xwl_glamor_gbm_has_egl_extension())
return;
if (!dixRegisterPrivateKey(&xwl_gbm_private_key, PRIVATE_SCREEN, 0))
return;
xwl_gbm = calloc(sizeof(*xwl_gbm), 1);
if (!xwl_gbm) {
ErrorF("glamor: Not enough memory to setup GBM, disabling\n");
return;
}
dixSetPrivate(&xwl_screen->screen->devPrivates, &xwl_gbm_private_key,
xwl_gbm);
xwl_screen->gbm_backend.init_wl_registry = xwl_glamor_gbm_init_wl_registry;
xwl_screen->gbm_backend.has_wl_interfaces = xwl_glamor_gbm_has_wl_interfaces;
xwl_screen->gbm_backend.init_egl = xwl_glamor_gbm_init_egl;
xwl_screen->gbm_backend.init_screen = xwl_glamor_gbm_init_screen;
xwl_screen->gbm_backend.get_wl_buffer_for_pixmap = xwl_glamor_gbm_get_wl_buffer_for_pixmap;
xwl_screen->gbm_backend.is_available = TRUE;
}
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