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0a9415cf79
xserver-multidpi/hw/xwayland/xwayland-glamor-gbm.c
Adam Jackson 0a9415cf79 glamor_egl: Don't initialize on llvmpipe 
Mesa started supporting GL_OES_EGL_image on llvmpipe in 17.3, after this
commit:

    commit bbdeddd5fd0b797e1e281f058338b3da4d98029d
    Author: Gurchetan Singh <gurchetansingh@chromium.org>
    Date:   Tue Aug 1 14:49:33 2017 -0700

        st/dri: add drisw image extension

That's pretty cool, but it means glamor now thinks it can initialize on
llvmpipe. This is almost certainly not what anyone wants, as glamor on
llvmpipe is pretty much uniformly slower than fb.

This fixes both Xorg and Xwayland to refuse glamor in such a setup.
Xephyr is left alone, both because glamor is not the default there and
because Xephyr+glamor+llvmpipe is one of the easier ways to get xts to
exercise glamor.

The (very small) downside of this change is that you lose DRI3 support.
This wouldn't have helped you very much (since an lp glamor blit is
slower than a pixman blit), but it would eliminate the PutImage overhead
for llvmpipe's glXSwapBuffers. A future change should add DRI3 support
for the fb-only case.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-09-28 20:07:05 +00:00

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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
#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 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);
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);
glBindTexture(GL_TEXTURE_2D, 0);
xwl_pixmap_set_private(pixmap, xwl_pixmap);
glamor_set_pixmap_texture(pixmap, xwl_pixmap->texture);
glamor_set_pixmap_type(pixmap, GLAMOR_TEXTURE_DRM);
return pixmap;
}
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;
if (width > 0 && height > 0 && depth >= 15 &&
(hint == 0 ||
hint == CREATE_PIXMAP_USAGE_BACKING_PIXMAP ||
hint == CREATE_PIXMAP_USAGE_SHARED)) {
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)
return xwl_glamor_gbm_create_pixmap_for_bo(screen, bo, depth);
}
return glamor_create_pixmap(screen, width, height, depth, hint);
}
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->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->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 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;
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;
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
};
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;
}
if (strstr((const char *)glGetString(GL_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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