diff options
Diffstat (limited to 'hw/xfree86/drivers/modesetting/dri2.c')
| -rw-r--r-- | hw/xfree86/drivers/modesetting/dri2.c | 863 |
1 files changed, 863 insertions, 0 deletions
diff --git a/hw/xfree86/drivers/modesetting/dri2.c b/hw/xfree86/drivers/modesetting/dri2.c new file mode 100644 index 000000000..6c88060b0 --- /dev/null +++ b/hw/xfree86/drivers/modesetting/dri2.c @@ -0,0 +1,863 @@ +/* + * Copyright © 2013 Intel Corporation + * Copyright © 2014 Broadcom + * + * 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. + */ + +/** + * @file dri2.c + * + * Implements generic support for DRI2 on KMS, using glamor pixmaps + * for color buffer management (no support for other aux buffers), and + * the DRM vblank ioctls. + * + * This doesn't implement pageflipping yet. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include "dix-config.h" +#endif + +#include <time.h> +#include "list.h" +#include "xf86.h" +#include "driver.h" +#include "dri2.h" + +#ifdef GLAMOR +#define GLAMOR_FOR_XORG 1 +#include "glamor.h" + +enum ms_dri2_frame_event_type { + MS_DRI2_QUEUE_SWAP, + MS_DRI2_WAIT_MSC, +}; + +typedef struct ms_dri2_frame_event { + ScreenPtr screen; + + DrawablePtr drawable; + ClientPtr client; + enum ms_dri2_frame_event_type type; + int frame; + xf86CrtcPtr crtc; + + struct xorg_list drawable_resource, client_resource; + + /* for swaps & flips only */ + DRI2SwapEventPtr event_complete; + void *event_data; + DRI2BufferPtr front; + DRI2BufferPtr back; +} ms_dri2_frame_event_rec, *ms_dri2_frame_event_ptr; + +typedef struct { + int refcnt; + PixmapPtr pixmap; +} ms_dri2_buffer_private_rec, *ms_dri2_buffer_private_ptr; + +static DevPrivateKeyRec ms_dri2_client_key; +static RESTYPE frame_event_client_type, frame_event_drawable_type; +static int ms_dri2_server_generation; + +struct ms_dri2_resource { + XID id; + RESTYPE type; + struct xorg_list list; +}; + +static struct ms_dri2_resource * +ms_get_resource(XID id, RESTYPE type) +{ + struct ms_dri2_resource *resource; + void *ptr; + + ptr = NULL; + dixLookupResourceByType(&ptr, id, type, NULL, DixWriteAccess); + if (ptr) + return ptr; + + resource = malloc(sizeof(*resource)); + if (resource == NULL) + return NULL; + + if (!AddResource(id, type, resource)) { + free(resource); + return NULL; + } + + resource->id = id; + resource->type = type; + xorg_list_init(&resource->list); + return resource; +} + +static inline PixmapPtr +get_drawable_pixmap(DrawablePtr drawable) +{ + ScreenPtr screen = drawable->pScreen; + + if (drawable->type == DRAWABLE_PIXMAP) + return (PixmapPtr) drawable; + else + return screen->GetWindowPixmap((WindowPtr) drawable); +} + +static PixmapPtr +get_front_buffer(DrawablePtr drawable) +{ + PixmapPtr pixmap; + + pixmap = get_drawable_pixmap(drawable); + pixmap->refcnt++; + + return pixmap; +} + +static DRI2Buffer2Ptr +ms_dri2_create_buffer(DrawablePtr drawable, unsigned int attachment, + unsigned int format) +{ + ScreenPtr screen = drawable->pScreen; + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + DRI2Buffer2Ptr buffer; + PixmapPtr pixmap; + uint32_t size; + uint16_t pitch; + ms_dri2_buffer_private_ptr private; + + buffer = calloc(1, sizeof *buffer); + if (buffer == NULL) + return NULL; + + private = calloc(1, sizeof(*private)); + if (private == NULL) { + free(buffer); + return NULL; + } + + pixmap = NULL; + if (attachment == DRI2BufferFrontLeft) + pixmap = get_front_buffer(drawable); + + if (pixmap == NULL) { + int pixmap_width = drawable->width; + int pixmap_height = drawable->height; + int pixmap_cpp = (format != 0) ? format : drawable->depth; + + /* Assume that non-color-buffers require special + * device-specific handling. Mesa currently makes no requests + * for non-color aux buffers. + */ + switch (attachment) { + case DRI2BufferAccum: + case DRI2BufferBackLeft: + case DRI2BufferBackRight: + case DRI2BufferFakeFrontLeft: + case DRI2BufferFakeFrontRight: + case DRI2BufferFrontLeft: + case DRI2BufferFrontRight: + break; + + case DRI2BufferStencil: + case DRI2BufferDepth: + case DRI2BufferDepthStencil: + case DRI2BufferHiz: + default: + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "Request for DRI2 buffer attachment %d unsupported\n", + attachment); + free(private); + free(buffer); + return NULL; + } + + pixmap = screen->CreatePixmap(screen, + pixmap_width, + pixmap_height, + pixmap_cpp, + 0); + if (pixmap == NULL) { + if (pixmap) + screen->DestroyPixmap(pixmap); + free(private); + free(buffer); + return NULL; + } + } + + buffer->attachment = attachment; + buffer->cpp = pixmap->drawable.bitsPerPixel / 8; + buffer->format = format; + /* The buffer's flags field is unused by the client drivers in + * Mesa currently. + */ + buffer->flags = 0; + + buffer->name = glamor_name_from_pixmap(pixmap, &pitch, &size); + buffer->pitch = pitch; + if (buffer->name == -1) { + xf86DrvMsg(scrn->scrnIndex, X_ERROR, + "Failed to get DRI2 name for pixmap\n"); + screen->DestroyPixmap(pixmap); + free(private); + free(buffer); + return NULL; + } + + buffer->driverPrivate = private; + private->refcnt = 1; + private->pixmap = pixmap; + + return buffer; +} + +static void +ms_dri2_reference_buffer(DRI2Buffer2Ptr buffer) +{ + if (buffer) { + ms_dri2_buffer_private_ptr private = buffer->driverPrivate; + private->refcnt++; + } +} + +static void ms_dri2_destroy_buffer(DrawablePtr drawable, DRI2Buffer2Ptr buffer) +{ + if (!buffer) + return; + + if (buffer->driverPrivate) { + ms_dri2_buffer_private_ptr private = buffer->driverPrivate; + if (--private->refcnt == 0) { + ScreenPtr screen = private->pixmap->drawable.pScreen; + screen->DestroyPixmap(private->pixmap); + free(private); + free(buffer); + } + } else { + free(buffer); + } +} + +static void +ms_dri2_copy_region(DrawablePtr drawable, RegionPtr pRegion, + DRI2BufferPtr destBuffer, DRI2BufferPtr sourceBuffer) +{ + ms_dri2_buffer_private_ptr src_priv = sourceBuffer->driverPrivate; + ms_dri2_buffer_private_ptr dst_priv = destBuffer->driverPrivate; + PixmapPtr src_pixmap = src_priv->pixmap; + PixmapPtr dst_pixmap = dst_priv->pixmap; + ScreenPtr screen = drawable->pScreen; + DrawablePtr src = (sourceBuffer->attachment == DRI2BufferFrontLeft) + ? drawable : &src_pixmap->drawable; + DrawablePtr dst = (destBuffer->attachment == DRI2BufferFrontLeft) + ? drawable : &dst_pixmap->drawable; + RegionPtr pCopyClip; + GCPtr gc; + + gc = GetScratchGC(dst->depth, screen); + if (!gc) + return; + + pCopyClip = REGION_CREATE(screen, NULL, 0); + REGION_COPY(screen, pCopyClip, pRegion); + (*gc->funcs->ChangeClip) (gc, CT_REGION, pCopyClip, 0); + ValidateGC(dst, gc); + + /* It's important that this copy gets submitted before the direct + * rendering client submits rendering for the next frame, but we + * don't actually need to submit right now. The client will wait + * for the DRI2CopyRegion reply or the swap buffer event before + * rendering, and we'll hit the flush callback chain before those + * messages are sent. We submit our batch buffers from the flush + * callback chain so we know that will happen before the client + * tries to render again. + */ + gc->ops->CopyArea(src, dst, gc, + 0, 0, + drawable->width, drawable->height, + 0, 0); + + FreeScratchGC(gc); +} + +static uint64_t +gettime_us(void) +{ + struct timespec tv; + + if (clock_gettime(CLOCK_MONOTONIC, &tv)) + return 0; + + return (uint64_t)tv.tv_sec * 1000000 + tv.tv_nsec / 1000; +} + +/** + * Get current frame count and frame count timestamp, based on drawable's + * crtc. + */ +static int +ms_dri2_get_msc(DrawablePtr draw, CARD64 *ust, CARD64 *msc) +{ + int ret; + xf86CrtcPtr crtc = ms_dri2_crtc_covering_drawable(draw); + + /* Drawable not displayed, make up a *monotonic* value */ + if (crtc == NULL) { + *ust = gettime_us(); + *msc = 0; + return TRUE; + } + + ret = ms_get_crtc_ust_msc(crtc, ust, msc); + + if (ret) + return FALSE; + + return TRUE; +} + +static XID +get_client_id(ClientPtr client) +{ + XID *ptr = dixGetPrivateAddr(&client->devPrivates, &ms_dri2_client_key); + if (*ptr == 0) + *ptr = FakeClientID(client->index); + return *ptr; +} + +/* + * Hook this frame event into the server resource + * database so we can clean it up if the drawable or + * client exits while the swap is pending + */ +static Bool +ms_dri2_add_frame_event(ms_dri2_frame_event_ptr info) +{ + struct ms_dri2_resource *resource; + + resource = ms_get_resource(get_client_id(info->client), + frame_event_client_type); + if (resource == NULL) + return FALSE; + + xorg_list_add(&info->client_resource, &resource->list); + + resource = ms_get_resource(info->drawable->id, frame_event_drawable_type); + if (resource == NULL) { + xorg_list_del(&info->client_resource); + return FALSE; + } + + xorg_list_add(&info->drawable_resource, &resource->list); + + return TRUE; +} + +static void +ms_dri2_del_frame_event(ms_dri2_frame_event_rec *info) +{ + xorg_list_del(&info->client_resource); + xorg_list_del(&info->drawable_resource); + + if (info->front) + ms_dri2_destroy_buffer(NULL, info->front); + if (info->back) + ms_dri2_destroy_buffer(NULL, info->back); + + free(info); +} + +static void +ms_dri2_blit_swap(DrawablePtr drawable, + DRI2BufferPtr dst, + DRI2BufferPtr src) +{ + BoxRec box; + RegionRec region; + + box.x1 = 0; + box.y1 = 0; + box.x2 = drawable->width; + box.y2 = drawable->height; + REGION_INIT(pScreen, ®ion, &box, 0); + + ms_dri2_copy_region(drawable, ®ion, dst, src); +} + +static void +ms_dri2_frame_event_handler(uint64_t msc, + uint64_t usec, + void *data) +{ + ms_dri2_frame_event_ptr frame_info = data; + DrawablePtr drawable = frame_info->drawable; + ScreenPtr screen = frame_info->screen; + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + uint32_t tv_sec = usec / 1000000; + uint32_t tv_usec = usec % 1000000; + + if (!drawable) { + ms_dri2_del_frame_event(frame_info); + return; + } + + switch (frame_info->type) { + case MS_DRI2_QUEUE_SWAP: + ms_dri2_blit_swap(drawable, frame_info->front, frame_info->back); + DRI2SwapComplete(frame_info->client, drawable, msc, tv_sec, tv_usec, + DRI2_BLIT_COMPLETE, + frame_info->client ? frame_info->event_complete : NULL, + frame_info->event_data); + break; + + case MS_DRI2_WAIT_MSC: + if (frame_info->client) + DRI2WaitMSCComplete(frame_info->client, drawable, + msc, tv_sec, tv_usec); + break; + + default: + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "%s: unknown vblank event (type %d) received\n", __func__, + frame_info->type); + break; + } + + ms_dri2_del_frame_event(frame_info); +} + +static void +ms_dri2_frame_event_abort(void *data) +{ + ms_dri2_frame_event_ptr frame_info = data; + + ms_dri2_del_frame_event(frame_info); +} + +/** + * Request a DRM event when the requested conditions will be satisfied. + * + * We need to handle the event and ask the server to wake up the client when + * we receive it. + */ +static int +ms_dri2_schedule_wait_msc(ClientPtr client, DrawablePtr draw, CARD64 target_msc, + CARD64 divisor, CARD64 remainder) +{ + ScreenPtr screen = draw->pScreen; + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + modesettingPtr ms = modesettingPTR(scrn); + ms_dri2_frame_event_ptr wait_info; + drmVBlank vbl; + int ret; + xf86CrtcPtr crtc = ms_dri2_crtc_covering_drawable(draw); + drmmode_crtc_private_ptr drmmode_crtc; + CARD64 current_msc, current_ust, request_msc; + uint32_t seq; + + /* Drawable not visible, return immediately */ + if (!crtc) + goto out_complete; + drmmode_crtc = crtc->driver_private; + + wait_info = calloc(1, sizeof(*wait_info)); + if (!wait_info) + goto out_complete; + + wait_info->screen = screen; + wait_info->drawable = draw; + wait_info->client = client; + wait_info->type = MS_DRI2_WAIT_MSC; + + if (!ms_dri2_add_frame_event(wait_info)) { + free(wait_info); + wait_info = NULL; + goto out_complete; + } + + /* Get current count */ + ret = ms_get_crtc_ust_msc(crtc, ¤t_ust, ¤t_msc); + + /* + * If divisor is zero, or current_msc is smaller than target_msc, + * we just need to make sure target_msc passes before waking up the + * client. + */ + if (divisor == 0 || current_msc < target_msc) { + /* If target_msc already reached or passed, set it to + * current_msc to ensure we return a reasonable value back + * to the caller. This keeps the client from continually + * sending us MSC targets from the past by forcibly updating + * their count on this call. + */ + seq = ms_drm_queue_alloc(crtc, wait_info, + ms_dri2_frame_event_handler, + ms_dri2_frame_event_abort); + if (!seq) + goto out_free; + + if (current_msc >= target_msc) + target_msc = current_msc; + vbl.request.type = (DRM_VBLANK_ABSOLUTE | + DRM_VBLANK_EVENT | + drmmode_crtc->vblank_pipe); + vbl.request.sequence = ms_crtc_msc_to_kernel_msc(crtc, target_msc); + vbl.request.signal = (unsigned long)seq; + + ret = drmWaitVBlank(ms->fd, &vbl); + if (ret) { + static int limit = 5; + if (limit) { + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "%s:%d get vblank counter failed: %s\n", + __FUNCTION__, __LINE__, + strerror(errno)); + limit--; + } + goto out_free; + } + + wait_info->frame = ms_kernel_msc_to_crtc_msc(crtc, vbl.reply.sequence); + DRI2BlockClient(client, draw); + return TRUE; + } + + /* + * If we get here, target_msc has already passed or we don't have one, + * so we queue an event that will satisfy the divisor/remainder equation. + */ + vbl.request.type = + DRM_VBLANK_ABSOLUTE | DRM_VBLANK_EVENT | drmmode_crtc->vblank_pipe; + + request_msc = current_msc - (current_msc % divisor) + + remainder; + /* + * If calculated remainder is larger than requested remainder, + * it means we've passed the last point where + * seq % divisor == remainder, so we need to wait for the next time + * that will happen. + */ + if ((current_msc % divisor) >= remainder) + request_msc += divisor; + + seq = ms_drm_queue_alloc(crtc, wait_info, + ms_dri2_frame_event_handler, + ms_dri2_frame_event_abort); + if (!seq) + goto out_free; + + vbl.request.sequence = ms_crtc_msc_to_kernel_msc(crtc, request_msc); + vbl.request.signal = (unsigned long)seq; + + ret = drmWaitVBlank(ms->fd, &vbl); + if (ret) { + static int limit = 5; + if (limit) { + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "%s:%d get vblank counter failed: %s\n", + __FUNCTION__, __LINE__, + strerror(errno)); + limit--; + } + goto out_free; + } + + wait_info->frame = ms_kernel_msc_to_crtc_msc(crtc, vbl.reply.sequence); + DRI2BlockClient(client, draw); + + return TRUE; + + out_free: + ms_dri2_del_frame_event(wait_info); + out_complete: + DRI2WaitMSCComplete(client, draw, target_msc, 0, 0); + return TRUE; +} + +/** + * ScheduleSwap is responsible for requesting a DRM vblank event for + * the appropriate frame, or executing the swap immediately if it + * doesn't need to wait. + * + * When the swap is complete, the driver should call into the server so it + * can send any swap complete events that have been requested. + */ +static int +ms_dri2_schedule_swap(ClientPtr client, DrawablePtr draw, + DRI2BufferPtr front, DRI2BufferPtr back, + CARD64 *target_msc, CARD64 divisor, + CARD64 remainder, DRI2SwapEventPtr func, void *data) +{ + ScreenPtr screen = draw->pScreen; + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + modesettingPtr ms = modesettingPTR(scrn); + drmVBlank vbl; + int ret; + xf86CrtcPtr crtc = ms_dri2_crtc_covering_drawable(draw); + drmmode_crtc_private_ptr drmmode_crtc; + ms_dri2_frame_event_ptr frame_info = NULL; + uint64_t current_msc, current_ust; + uint64_t request_msc; + uint32_t seq; + + /* Drawable not displayed... just complete the swap */ + if (!crtc) + goto blit_fallback; + drmmode_crtc = crtc->driver_private; + + frame_info = calloc(1, sizeof(*frame_info)); + if (!frame_info) + goto blit_fallback; + + frame_info->screen = screen; + frame_info->drawable = draw; + frame_info->client = client; + frame_info->event_complete = func; + frame_info->event_data = data; + frame_info->front = front; + frame_info->back = back; + frame_info->crtc = crtc; + frame_info->type = MS_DRI2_QUEUE_SWAP; + + if (!ms_dri2_add_frame_event(frame_info)) { + free(frame_info); + frame_info = NULL; + goto blit_fallback; + } + + ms_dri2_reference_buffer(front); + ms_dri2_reference_buffer(back); + + ret = ms_get_crtc_ust_msc(crtc, ¤t_ust, ¤t_msc); + + /* + * If divisor is zero, or current_msc is smaller than target_msc + * we just need to make sure target_msc passes before initiating + * the swap. + */ + if (divisor == 0 || current_msc < *target_msc) { + /* We need to use DRM_VBLANK_NEXTONMISS to avoid unreliable + * timestamping later on. + */ + vbl.request.type = (DRM_VBLANK_ABSOLUTE | + DRM_VBLANK_NEXTONMISS | + DRM_VBLANK_EVENT | + drmmode_crtc->vblank_pipe); + + /* If target_msc already reached or passed, set it to + * current_msc to ensure we return a reasonable value back + * to the caller. This makes swap_interval logic more robust. + */ + if (current_msc >= *target_msc) + *target_msc = current_msc; + + seq = ms_drm_queue_alloc(crtc, frame_info, + ms_dri2_frame_event_handler, + ms_dri2_frame_event_abort); + if (!seq) + goto blit_fallback; + + vbl.request.sequence = ms_crtc_msc_to_kernel_msc(crtc, *target_msc); + vbl.request.signal = (unsigned long)seq; + + ret = drmWaitVBlank(ms->fd, &vbl); + if (ret) { + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "divisor 0 get vblank counter failed: %s\n", + strerror(errno)); + goto blit_fallback; + } + + *target_msc = ms_kernel_msc_to_crtc_msc(crtc, vbl.reply.sequence); + frame_info->frame = *target_msc; + + return TRUE; + } + + /* + * If we get here, target_msc has already passed or we don't have one, + * and we need to queue an event that will satisfy the divisor/remainder + * equation. + */ + vbl.request.type = (DRM_VBLANK_ABSOLUTE | + DRM_VBLANK_NEXTONMISS | + DRM_VBLANK_EVENT | + drmmode_crtc->vblank_pipe); + + request_msc = current_msc - (current_msc % divisor) + + remainder; + + /* + * If the calculated deadline vbl.request.sequence is smaller than + * or equal to current_msc, it means we've passed the last point + * when effective onset frame seq could satisfy + * seq % divisor == remainder, so we need to wait for the next time + * this will happen. + + * This comparison takes the DRM_VBLANK_NEXTONMISS delay into account. + */ + if (request_msc <= current_msc) + request_msc += divisor; + + + seq = ms_drm_queue_alloc(crtc, frame_info, + ms_dri2_frame_event_handler, + ms_dri2_frame_event_abort); + if (!seq) + goto blit_fallback; + + vbl.request.sequence = ms_crtc_msc_to_kernel_msc(crtc, request_msc); + vbl.request.signal = (unsigned long)seq; + + ret = drmWaitVBlank(ms->fd, &vbl); + if (ret) { + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "final get vblank counter failed: %s\n", + strerror(errno)); + goto blit_fallback; + } + + *target_msc = ms_kernel_msc_to_crtc_msc(crtc, vbl.reply.sequence); + frame_info->frame = *target_msc; + + return TRUE; + + blit_fallback: + ms_dri2_blit_swap(draw, front, back); + DRI2SwapComplete(client, draw, 0, 0, 0, DRI2_BLIT_COMPLETE, func, data); + if (frame_info) + ms_dri2_del_frame_event(frame_info); + *target_msc = 0; /* offscreen, so zero out target vblank count */ + return TRUE; +} + +static int +ms_dri2_frame_event_client_gone(void *data, XID id) +{ + struct ms_dri2_resource *resource = data; + + while (!xorg_list_is_empty(&resource->list)) { + ms_dri2_frame_event_ptr info = + xorg_list_first_entry(&resource->list, + ms_dri2_frame_event_rec, + client_resource); + + xorg_list_del(&info->client_resource); + info->client = NULL; + } + free(resource); + + return Success; +} + +static int +ms_dri2_frame_event_drawable_gone(void *data, XID id) +{ + struct ms_dri2_resource *resource = data; + + while (!xorg_list_is_empty(&resource->list)) { + ms_dri2_frame_event_ptr info = + xorg_list_first_entry(&resource->list, + ms_dri2_frame_event_rec, + drawable_resource); + + xorg_list_del(&info->drawable_resource); + info->drawable = NULL; + } + free(resource); + + return Success; +} + +static Bool +ms_dri2_register_frame_event_resource_types(void) +{ + frame_event_client_type = + CreateNewResourceType(ms_dri2_frame_event_client_gone, + "Frame Event Client"); + if (!frame_event_client_type) + return FALSE; + + frame_event_drawable_type = + CreateNewResourceType(ms_dri2_frame_event_drawable_gone, + "Frame Event Drawable"); + if (!frame_event_drawable_type) + return FALSE; + + return TRUE; +} + +Bool +ms_dri2_screen_init(ScreenPtr screen) +{ + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + modesettingPtr ms = modesettingPTR(scrn); + DRI2InfoRec info; + + if (!glamor_supports_pixmap_import_export(screen)) { + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "DRI2: glamor lacks support for pixmap import/export\n"); + } + + if (!xf86LoaderCheckSymbol("DRI2Version")) + return FALSE; + + if (!dixRegisterPrivateKey(&ms_dri2_client_key, + PRIVATE_CLIENT, sizeof(XID))) + return FALSE; + + if (serverGeneration != ms_dri2_server_generation) { + ms_dri2_server_generation = serverGeneration; + if (!ms_dri2_register_frame_event_resource_types()) { + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "Cannot register DRI2 frame event resources\n"); + return FALSE; + } + } + + memset(&info, '\0', sizeof(info)); + info.fd = ms->fd; + info.driverName = NULL; /* Compat field, unused. */ + info.deviceName = drmGetDeviceNameFromFd(ms->fd); + + info.version = 4; + info.CreateBuffer = ms_dri2_create_buffer; + info.DestroyBuffer = ms_dri2_destroy_buffer; + info.CopyRegion = ms_dri2_copy_region; + info.ScheduleSwap = ms_dri2_schedule_swap; + info.GetMSC = ms_dri2_get_msc; + info.ScheduleWaitMSC = ms_dri2_schedule_wait_msc; + + /* These two will be filled in by dri2.c */ + info.numDrivers = 0; + info.driverNames = NULL; + + return DRI2ScreenInit(screen, &info); +} + +void +ms_dri2_close_screen(ScreenPtr screen) +{ + DRI2CloseScreen(screen); +} + +#endif /* GLAMOR */ |