static struct native_display *
native_create_display(void *dpy, boolean use_sw)
{
struct gbm_gallium_drm_device *gbm;
int fd;
int own_gbm = 0;
gbm = dpy;
if (gbm == NULL) {
fd = open("/dev/dri/card0", O_RDWR);
/* FIXME: Use an internal constructor to create a gbm
* device with gallium backend directly, without setenv */
setenv("GBM_BACKEND", "gbm_gallium_drm.so", 1);
gbm = gbm_gallium_drm_device(gbm_create_device(fd));
own_gbm = 1;
}
if (gbm == NULL)
return NULL;
if (strcmp(gbm_device_get_backend_name(&gbm->base.base), "drm") != 0 ||
gbm->base.type != GBM_DRM_DRIVER_TYPE_GALLIUM) {
if (own_gbm)
gbm_device_destroy(&gbm->base.base);
return NULL;
}
return drm_create_display(gbm, own_gbm, drm_event_handler);
}
static void
gbm_gallium_drm_destroy(struct gbm_device *gbm)
{
struct gbm_gallium_drm_device *gdrm = gbm_gallium_drm_device(gbm);
gallium_screen_destroy(gdrm);
FREE(gdrm);
}
static struct gbm_bo *
gbm_gallium_drm_bo_create(struct gbm_device *gbm,
uint32_t width, uint32_t height,
enum gbm_bo_format format, uint32_t usage)
{
struct gbm_gallium_drm_device *gdrm = gbm_gallium_drm_device(gbm);
struct gbm_gallium_drm_bo *bo;
struct pipe_resource templ;
struct winsys_handle whandle;
enum pipe_format pf;
bo = CALLOC_STRUCT(gbm_gallium_drm_bo);
if (bo == NULL)
return NULL;
bo->base.base.gbm = gbm;
bo->base.base.width = width;
bo->base.base.height = height;
bo->base.base.format = format;
pf = gbm_format_to_gallium(format);
if (pf == PIPE_FORMAT_NONE)
return NULL;
memset(&templ, 0, sizeof(templ));
templ.bind = gbm_usage_to_gallium(usage);
templ.format = pf;
templ.target = PIPE_TEXTURE_2D;
templ.last_level = 0;
templ.width0 = width;
templ.height0 = height;
templ.depth0 = 1;
templ.array_size = 1;
bo->resource = gdrm->screen->resource_create(gdrm->screen, &templ);
if (bo->resource == NULL) {
FREE(bo);
return NULL;
}
memset(&whandle, 0, sizeof(whandle));
whandle.type = DRM_API_HANDLE_TYPE_KMS;
gdrm->screen->resource_get_handle(gdrm->screen, bo->resource, &whandle);
bo->base.base.handle.u32 = whandle.handle;
bo->base.base.stride = whandle.stride;
return &bo->base.base;
}
static int
gbm_gallium_drm_is_format_supported(struct gbm_device *gbm,
enum gbm_bo_format format,
uint32_t usage)
{
struct gbm_gallium_drm_device *gdrm = gbm_gallium_drm_device(gbm);
enum pipe_format pf;
pf = gbm_format_to_gallium(format);
if (pf == PIPE_FORMAT_NONE)
return 0;
if (!gdrm->screen->is_format_supported(gdrm->screen, PIPE_TEXTURE_2D, pf, 0,
gbm_usage_to_gallium(usage)))
return 0;
if (usage & GBM_BO_USE_SCANOUT && format != GBM_BO_FORMAT_XRGB8888)
return 0;
return 1;
}
static struct native_display *
native_create_display(void *dpy, boolean use_sw)
{
struct gbm_gallium_drm_device *gbm;
int fd;
int own_gbm = 0;
gbm = dpy;
if (gbm == NULL) {
const char *device_name="/dev/dri/card0";
#ifdef O_CLOEXEC
fd = open(device_name, O_RDWR | O_CLOEXEC);
if (fd == -1 && errno == EINVAL)
#endif
{
fd = open(device_name, O_RDWR);
if (fd != -1)
fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC);
}
/* FIXME: Use an internal constructor to create a gbm
* device with gallium backend directly, without setenv */
setenv("GBM_BACKEND", "gbm_gallium_drm.so", 1);
gbm = gbm_gallium_drm_device(gbm_create_device(fd));
own_gbm = 1;
}
if (gbm == NULL)
return NULL;
if (strcmp(gbm_device_get_backend_name(&gbm->base.base), "drm") != 0 ||
gbm->base.type != GBM_DRM_DRIVER_TYPE_GALLIUM) {
if (own_gbm)
gbm_device_destroy(&gbm->base.base);
return NULL;
}
return drm_create_display(gbm, own_gbm, drm_event_handler);
}
static struct gbm_bo *
gbm_gallium_drm_bo_import(struct gbm_device *gbm,
uint32_t type, void *buffer, uint32_t usage)
{
struct gbm_gallium_drm_device *gdrm = gbm_gallium_drm_device(gbm);
struct gbm_gallium_drm_bo *bo;
struct winsys_handle whandle;
struct pipe_resource *resource;
switch (type) {
#if HAVE_WAYLAND_PLATFORM
case GBM_BO_IMPORT_WL_BUFFER:
{
struct wl_drm_buffer *wb = (struct wl_drm_buffer *) buffer;
resource = wb->driver_buffer;
break;
}
#endif
case GBM_BO_IMPORT_EGL_IMAGE:
if (!gdrm->lookup_egl_image)
return NULL;
resource = gdrm->lookup_egl_image(gdrm->lookup_egl_image_data, buffer);
if (resource == NULL)
return NULL;
break;
default:
return NULL;
}
bo = CALLOC_STRUCT(gbm_gallium_drm_bo);
if (bo == NULL)
return NULL;
bo->base.base.gbm = gbm;
bo->base.base.width = resource->width0;
bo->base.base.height = resource->height0;
switch (resource->format) {
case PIPE_FORMAT_B8G8R8X8_UNORM:
bo->base.base.format = GBM_BO_FORMAT_XRGB8888;
break;
case PIPE_FORMAT_B8G8R8A8_UNORM:
bo->base.base.format = GBM_BO_FORMAT_ARGB8888;
break;
default:
FREE(bo);
return NULL;
}
pipe_resource_reference(&bo->resource, resource);
memset(&whandle, 0, sizeof(whandle));
whandle.type = DRM_API_HANDLE_TYPE_KMS;
gdrm->screen->resource_get_handle(gdrm->screen, bo->resource, &whandle);
bo->base.base.handle.u32 = whandle.handle;
bo->base.base.stride = whandle.stride;
return &bo->base.base;
}
