blob: 22e155cc141317a3254fc77a2892775dedc6089d [file] [log] [blame]
/*
* Copyright 2020 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.
*/
#include "mesa_interface.h"
#include "git_sha1.h"
#include "util/format/u_format.h"
#include "util/u_memory.h"
#include "util/u_inlines.h"
#include "util/box.h"
#include "util/log.h"
#include "pipe/p_context.h"
#include "pipe-loader/pipe_loader.h"
#include "state_tracker/st_context.h"
#include "zink/zink_public.h"
#include "zink/zink_kopper.h"
#include "dri_screen.h"
#include "dri_context.h"
#include "dri_drawable.h"
#include "dri_helpers.h"
#include <vulkan/vulkan.h>
#ifdef VK_USE_PLATFORM_XCB_KHR
#include <xcb/xcb.h>
#include <xcb/dri3.h>
#include <xcb/present.h>
#include <xcb/xfixes.h>
#include "util/libsync.h"
#include <X11/Xlib-xcb.h>
#include "drm-uapi/drm_fourcc.h"
#include "loader_dri3_helper.h"
#endif
struct pipe_screen *
kopper_init_screen(struct dri_screen *screen, bool driver_name_is_inferred)
{
struct pipe_screen *pscreen = NULL;
if (!screen->kopper_loader) {
fprintf(stderr, "mesa: Kopper interface not found!\n"
" Ensure the versions of %s built with this version of Zink are\n"
" in your library path!\n", KOPPER_LIB_NAMES);
return NULL;
}
screen->can_share_buffer = true;
bool success;
#ifdef HAVE_LIBDRM
if (screen->fd != -1)
success = pipe_loader_drm_probe_fd(&screen->dev, screen->fd, false);
else
success = pipe_loader_vk_probe_dri(&screen->dev);
#else
success = pipe_loader_vk_probe_dri(&screen->dev);
#endif
if (success)
pscreen = pipe_loader_create_screen(screen->dev, driver_name_is_inferred);
if (!pscreen)
return NULL;
assert(pscreen->caps.device_reset_status_query);
screen->is_sw = zink_kopper_is_cpu(pscreen);
return pscreen;
}
// copypasta alert
extern bool
dri_image_drawable_get_buffers(struct dri_drawable *drawable,
struct __DRIimageList *images,
const enum st_attachment_type *statts,
unsigned statts_count);
#ifdef VK_USE_PLATFORM_XCB_KHR
/* Translate from the pipe_format enums used by Gallium to the DRM FourCC
* codes used by dmabuf import */
static int
pipe_format_to_fourcc(enum pipe_format format)
{
switch (format) {
case PIPE_FORMAT_BGRA8888_SRGB: return __DRI_IMAGE_FOURCC_SABGR8888;
case PIPE_FORMAT_BGRX8888_SRGB: return __DRI_IMAGE_FOURCC_SXRGB8888;
case PIPE_FORMAT_RGBA8888_SRGB: return __DRI_IMAGE_FOURCC_SABGR8888;
case PIPE_FORMAT_B5G6R5_UNORM: return DRM_FORMAT_RGB565;
case PIPE_FORMAT_BGRX8888_UNORM: return DRM_FORMAT_XRGB8888;
case PIPE_FORMAT_BGRA8888_UNORM: return DRM_FORMAT_ARGB8888;
case PIPE_FORMAT_RGBA8888_UNORM: return DRM_FORMAT_ABGR8888;
case PIPE_FORMAT_RGBX8888_UNORM: return DRM_FORMAT_XBGR8888;
case PIPE_FORMAT_B10G10R10X2_UNORM: return DRM_FORMAT_XRGB2101010;
case PIPE_FORMAT_B10G10R10A2_UNORM: return DRM_FORMAT_ARGB2101010;
case PIPE_FORMAT_R10G10B10X2_UNORM: return DRM_FORMAT_XBGR2101010;
case PIPE_FORMAT_R10G10B10A2_UNORM: return DRM_FORMAT_ABGR2101010;
case PIPE_FORMAT_R16G16B16A16_FLOAT: return DRM_FORMAT_XBGR16161616F;
case PIPE_FORMAT_R16G16B16X16_FLOAT: return DRM_FORMAT_ABGR16161616F;
case PIPE_FORMAT_B5G5R5A1_UNORM: return DRM_FORMAT_ARGB1555;
case PIPE_FORMAT_R5G5B5A1_UNORM: return DRM_FORMAT_ABGR1555;
case PIPE_FORMAT_B4G4R4A4_UNORM: return DRM_FORMAT_ARGB4444;
case PIPE_FORMAT_R4G4B4A4_UNORM: return DRM_FORMAT_ABGR4444;
default: return DRM_FORMAT_INVALID;
}
}
/** kopper_get_pixmap_buffer
*
* Get the DRM object for a pixmap from the X server and
* wrap that with a struct dri_image structure using createImageFromDmaBufs
*/
static struct pipe_resource *
kopper_get_pixmap_buffer(struct dri_drawable *drawable,
enum pipe_format pf)
{
xcb_drawable_t pixmap;
int width;
int height;
uint32_t fourcc = pipe_format_to_fourcc(pf);
struct kopper_loader_info *info = &drawable->info;
assert(info->bos.sType == VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR);
VkXcbSurfaceCreateInfoKHR *xcb = (VkXcbSurfaceCreateInfoKHR *)&info->bos;
xcb_connection_t *conn = xcb->connection;
pixmap = xcb->window;
if (drawable->image)
return drawable->image->texture;
/* FIXME: probably broken for OBS studio?
* see dri3_get_pixmap_buffer()
*/
struct dri_screen *screen = drawable->screen;
#ifndef GLX_USE_APPLE
drawable->image = loader_dri3_get_pixmap_buffer(conn, pixmap, screen,
fourcc, drawable->screen->has_multibuffer, &width, &height, drawable);
#else
drawable->image = NULL;
#endif
if (!drawable->image)
return NULL;
drawable->w = width;
drawable->h = height;
return drawable->image->texture;
}
#endif //VK_USE_PLATFORM_XCB_KHR
static void
kopper_allocate_textures(struct dri_context *ctx,
struct dri_drawable *drawable,
const enum st_attachment_type *statts,
unsigned statts_count)
{
struct dri_screen *screen = drawable->screen;
struct pipe_resource templ;
unsigned width, height;
bool resized;
unsigned i;
struct __DRIimageList images;
const __DRIimageLoaderExtension *image = screen->image.loader;
bool is_window = drawable->is_window;
bool is_pixmap = !is_window && drawable->info.bos.sType == VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR;
/* Wait for glthread to finish because we can't use pipe_context from
* multiple threads.
*/
_mesa_glthread_finish(ctx->st->ctx);
/* First get the buffers from the loader */
if (image) {
if (!dri_image_drawable_get_buffers(drawable, &images,
statts, statts_count))
return;
}
if (image) {
if (images.image_mask & __DRI_IMAGE_BUFFER_FRONT) {
struct pipe_resource **buf =
&drawable->textures[ST_ATTACHMENT_FRONT_LEFT];
struct pipe_resource *texture = images.front->texture;
drawable->w = texture->width0;
drawable->h = texture->height0;
pipe_resource_reference(buf, texture);
}
if (images.image_mask & __DRI_IMAGE_BUFFER_BACK) {
struct pipe_resource **buf =
&drawable->textures[ST_ATTACHMENT_BACK_LEFT];
struct pipe_resource *texture = images.back->texture;
drawable->w = texture->width0;
drawable->h = texture->height0;
pipe_resource_reference(buf, texture);
}
if (images.image_mask & __DRI_IMAGE_BUFFER_SHARED) {
struct pipe_resource **buf =
&drawable->textures[ST_ATTACHMENT_BACK_LEFT];
struct pipe_resource *texture = images.back->texture;
drawable->w = texture->width0;
drawable->h = texture->height0;
pipe_resource_reference(buf, texture);
ctx->is_shared_buffer_bound = true;
} else {
ctx->is_shared_buffer_bound = false;
}
}
/* check size after possible loader image resize */
width = drawable->w;
height = drawable->h;
resized = (drawable->old_w != width ||
drawable->old_h != height);
if (!image) {
/* remove outdated textures */
if (resized) {
for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
if (drawable->textures[i] && i < ST_ATTACHMENT_DEPTH_STENCIL && !is_pixmap) {
drawable->textures[i]->width0 = width;
drawable->textures[i]->height0 = height;
/* force all contexts to revalidate framebuffer */
p_atomic_inc(&drawable->base.stamp);
} else
pipe_resource_reference(&drawable->textures[i], NULL);
pipe_resource_reference(&drawable->msaa_textures[i], NULL);
if (is_pixmap && i == ST_ATTACHMENT_FRONT_LEFT) {
FREE(drawable->image);
drawable->image = NULL;
}
}
}
}
drawable->old_w = width;
drawable->old_h = height;
memset(&templ, 0, sizeof(templ));
templ.target = screen->target;
templ.width0 = width;
templ.height0 = height;
templ.depth0 = 1;
templ.array_size = 1;
templ.last_level = 0;
#if 0
XXX do this once swapinterval is hooked up
/* pixmaps always have front buffers.
* Exchange swaps also mandate fake front buffers.
*/
if (draw->type != LOADER_DRI3_DRAWABLE_WINDOW)
buffer_mask |= __DRI_IMAGE_BUFFER_FRONT;
#endif
uint32_t attachments = 0;
for (i = 0; i < statts_count; i++)
attachments |= BITFIELD_BIT(statts[i]);
bool front_only = attachments & ST_ATTACHMENT_FRONT_LEFT_MASK && !(attachments & ST_ATTACHMENT_BACK_LEFT_MASK);
for (i = 0; i < statts_count; i++) {
enum pipe_format format;
unsigned bind;
dri_drawable_get_format(drawable, statts[i], &format, &bind);
templ.format = format;
/* the texture already exists or not requested */
if (!drawable->textures[statts[i]]) {
if (statts[i] == ST_ATTACHMENT_BACK_LEFT ||
statts[i] == ST_ATTACHMENT_DEPTH_STENCIL ||
(statts[i] == ST_ATTACHMENT_FRONT_LEFT && front_only))
bind |= PIPE_BIND_DISPLAY_TARGET;
if (format == PIPE_FORMAT_NONE)
continue;
templ.bind = bind;
templ.nr_samples = 0;
templ.nr_storage_samples = 0;
if (statts[i] < ST_ATTACHMENT_DEPTH_STENCIL && is_window) {
void *data;
if (statts[i] == ST_ATTACHMENT_BACK_LEFT || (statts[i] == ST_ATTACHMENT_FRONT_LEFT && front_only))
data = &drawable->info;
else
data = drawable->textures[ST_ATTACHMENT_BACK_LEFT];
assert(data);
drawable->textures[statts[i]] =
screen->base.screen->resource_create_drawable(screen->base.screen, &templ, data);
drawable->window_valid = !!drawable->textures[statts[i]];
}
#ifdef VK_USE_PLATFORM_XCB_KHR
else if (is_pixmap && statts[i] == ST_ATTACHMENT_FRONT_LEFT && !screen->is_sw) {
drawable->textures[statts[i]] = kopper_get_pixmap_buffer(drawable, format);
if (drawable->textures[statts[i]])
dri_image_fence_sync(ctx, drawable->image);
}
#endif
if (!drawable->textures[statts[i]])
drawable->textures[statts[i]] =
screen->base.screen->resource_create(screen->base.screen, &templ);
}
if (drawable->stvis.samples > 1 && !drawable->msaa_textures[statts[i]]) {
templ.bind = bind &
~(PIPE_BIND_SCANOUT | PIPE_BIND_SHARED | PIPE_BIND_DISPLAY_TARGET);
templ.nr_samples = drawable->stvis.samples;
templ.nr_storage_samples = drawable->stvis.samples;
drawable->msaa_textures[statts[i]] =
screen->base.screen->resource_create(screen->base.screen, &templ);
dri_pipe_blit(ctx->st->pipe,
drawable->msaa_textures[statts[i]],
drawable->textures[statts[i]]);
}
}
}
static inline void
get_drawable_info(struct dri_drawable *drawable, int *w, int *h)
{
const __DRIkopperLoaderExtension *loader = drawable->screen->kopper_loader;
if (loader)
loader->GetDrawableInfo(drawable, w, h, drawable->loaderPrivate);
}
static void
kopper_update_drawable_info(struct dri_drawable *drawable)
{
struct dri_screen *screen = drawable->screen;
bool is_window = drawable->info.bos.sType != 0;
struct pipe_resource *ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT] ?
drawable->textures[ST_ATTACHMENT_BACK_LEFT] :
drawable->textures[ST_ATTACHMENT_FRONT_LEFT];
bool do_kopper_update = is_window && ptex && screen->fd == -1;
if (drawable->info.bos.sType == VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR && do_kopper_update)
zink_kopper_update(kopper_get_zink_screen(screen->base.screen), ptex, &drawable->w, &drawable->h);
else
get_drawable_info(drawable, &drawable->w, &drawable->h);
}
static inline void
kopper_present_texture(struct pipe_context *pipe, struct dri_drawable *drawable,
struct pipe_resource *ptex, unsigned nboxes, struct pipe_box *sub_box)
{
struct dri_screen *screen = drawable->screen;
screen->base.screen->flush_frontbuffer(screen->base.screen, pipe, ptex, 0, 0, drawable, nboxes, sub_box);
}
static inline void
kopper_copy_to_front(struct pipe_context *pipe,
struct dri_drawable *drawable,
struct pipe_resource *ptex,
unsigned nrects,
struct pipe_box *boxes)
{
kopper_present_texture(pipe, drawable, ptex, nrects, boxes);
drawable->lastStamp++;
p_atomic_inc(&drawable->base.stamp);
}
static bool
kopper_flush_frontbuffer(struct dri_context *ctx,
struct dri_drawable *drawable,
enum st_attachment_type statt)
{
struct pipe_resource *ptex;
if (!ctx || statt != ST_ATTACHMENT_FRONT_LEFT)
return false;
/* Wait for glthread to finish because we can't use pipe_context from
* multiple threads.
*/
_mesa_glthread_finish(ctx->st->ctx);
/* prevent recursion */
if (drawable->flushing)
return true;
drawable->flushing = true;
if (drawable->stvis.samples > 1) {
/* Resolve the front buffer. */
dri_pipe_blit(ctx->st->pipe,
drawable->textures[ST_ATTACHMENT_FRONT_LEFT],
drawable->msaa_textures[ST_ATTACHMENT_FRONT_LEFT]);
}
ptex = drawable->textures[statt];
if (ptex) {
ctx->st->pipe->flush_resource(ctx->st->pipe, drawable->textures[ST_ATTACHMENT_FRONT_LEFT]);
struct pipe_screen *screen = drawable->screen->base.screen;
struct st_context *st;
struct pipe_fence_handle *new_fence = NULL;
st = ctx->st;
st_context_flush(st, ST_FLUSH_FRONT, &new_fence, NULL, NULL);
drawable->flushing = false;
/* throttle on the previous fence */
if (drawable->throttle_fence) {
screen->fence_finish(screen, NULL, drawable->throttle_fence, OS_TIMEOUT_INFINITE);
screen->fence_reference(screen, &drawable->throttle_fence, NULL);
}
drawable->throttle_fence = new_fence;
kopper_copy_to_front(st->pipe, ctx->draw, ptex, 0, NULL);
}
return true;
}
static void
kopper_update_tex_buffer(struct dri_drawable *drawable,
struct dri_context *ctx,
struct pipe_resource *res)
{
struct dri_screen *screen = drawable->screen;
if (screen->has_dmabuf || drawable->is_window || drawable->info.bos.sType != VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR)
return;
drisw_update_tex_buffer(drawable, ctx, res);
}
static void
kopper_flush_swapbuffers(struct dri_context *ctx,
struct dri_drawable *drawable)
{
/* does this actually need to do anything? */
}
static void
kopper_swap_buffers(struct dri_drawable *drawable);
static void
kopper_swap_buffers_with_damage(struct dri_drawable *drawable, int nrects, const int *rects);
void
kopper_init_drawable(struct dri_drawable *drawable, bool isPixmap, int alphaBits)
{
struct dri_screen *screen = drawable->screen;
drawable->allocate_textures = kopper_allocate_textures;
drawable->update_drawable_info = kopper_update_drawable_info;
drawable->flush_frontbuffer = kopper_flush_frontbuffer;
drawable->update_tex_buffer = kopper_update_tex_buffer;
drawable->flush_swapbuffers = kopper_flush_swapbuffers;
drawable->swap_buffers = kopper_swap_buffers;
drawable->swap_buffers_with_damage = kopper_swap_buffers_with_damage;
drawable->info.has_alpha = alphaBits > 0;
if (screen->kopper_loader->SetSurfaceCreateInfo)
screen->kopper_loader->SetSurfaceCreateInfo(drawable->loaderPrivate,
&drawable->info);
drawable->is_window = !isPixmap && drawable->info.bos.sType != 0;
#ifdef VK_USE_PLATFORM_XCB_KHR
if (drawable->info.bos.sType == VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR) {
VkXcbSurfaceCreateInfoKHR *xcb = (VkXcbSurfaceCreateInfoKHR *)&drawable->info.bos;
xcb_connection_t *conn = xcb->connection;
int32_t eid = xcb_generate_id(conn);
if (drawable->is_window) {
xcb_present_select_input(conn, eid, xcb->window,
XCB_PRESENT_EVENT_MASK_COMPLETE_NOTIFY);
}
drawable->special_event =
xcb_register_for_special_xge(conn, &xcb_present_id, eid, NULL);
}
#endif
}
void
kopper_destroy_drawable(struct dri_drawable *drawable)
{
#ifdef VK_USE_PLATFORM_XCB_KHR
if (drawable->info.bos.sType == VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR) {
VkXcbSurfaceCreateInfoKHR *xcb = (VkXcbSurfaceCreateInfoKHR *)&drawable->info.bos;
xcb_connection_t *conn = xcb->connection;
xcb_unregister_for_special_event(conn, drawable->special_event);
}
#endif
}
int64_t
kopperSwapBuffersWithDamage(struct dri_drawable *drawable, uint32_t flush_flags, int nrects, const int *rects)
{
struct dri_context *ctx = dri_get_current();
struct pipe_resource *ptex;
if (!ctx)
return 0;
ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT];
if (!ptex)
return 0;
/* ensure invalidation is applied before renderpass ends */
if (flush_flags & __DRI2_FLUSH_INVALIDATE_ANCILLARY)
_mesa_glthread_invalidate_zsbuf(ctx->st->ctx);
/* Wait for glthread to finish because we can't use pipe_context from
* multiple threads.
*/
_mesa_glthread_finish(ctx->st->ctx);
drawable->texture_stamp = drawable->lastStamp - 1;
dri_flush(ctx, drawable,
__DRI2_FLUSH_DRAWABLE | __DRI2_FLUSH_CONTEXT | flush_flags,
__DRI2_THROTTLE_SWAPBUFFER);
struct pipe_box stack_boxes[64];
if (nrects > ARRAY_SIZE(stack_boxes))
nrects = 0;
if (nrects) {
for (unsigned int i = 0; i < nrects; i++) {
const int *rect = &rects[i * 4];
u_box_2d(rect[0], rect[1], rect[2], rect[3], &stack_boxes[i]);
}
}
kopper_copy_to_front(ctx->st->pipe, drawable, ptex, nrects, stack_boxes);
if (drawable->is_window && !zink_kopper_check(ptex))
return -1;
if (!drawable->textures[ST_ATTACHMENT_FRONT_LEFT]) {
return 0;
}
/* have to manually swap the pointers here to make frontbuffer readback work */
drawable->textures[ST_ATTACHMENT_BACK_LEFT] = drawable->textures[ST_ATTACHMENT_FRONT_LEFT];
drawable->textures[ST_ATTACHMENT_FRONT_LEFT] = ptex;
return 0;
}
int64_t
kopperSwapBuffers(struct dri_drawable *dPriv, uint32_t flush_flags)
{
return kopperSwapBuffersWithDamage(dPriv, flush_flags, 0, NULL);
}
static void
kopper_swap_buffers_with_damage(struct dri_drawable *drawable, int nrects, const int *rects)
{
kopperSwapBuffersWithDamage(drawable, 0, nrects, rects);
}
static void
kopper_swap_buffers(struct dri_drawable *drawable)
{
kopper_swap_buffers_with_damage(drawable, 0, NULL);
}
void
kopperSetSwapInterval(struct dri_drawable *drawable, int interval)
{
struct dri_screen *screen = drawable->screen;
struct pipe_resource *ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT] ?
drawable->textures[ST_ATTACHMENT_BACK_LEFT] :
drawable->textures[ST_ATTACHMENT_FRONT_LEFT];
drawable->info.initial_swap_interval = interval;
/* can't set swap interval on non-windows */
if (!drawable->window_valid)
return;
/* the conditional is because we can be called before buffer allocation. If
* we're before allocation, then the initial_swap_interval will be used when
* the swapchain is eventually created.
*/
if (ptex) {
struct pipe_screen *pscreen = kopper_get_zink_screen(screen->base.screen);
zink_kopper_set_swap_interval(pscreen, ptex, interval);
}
}
int
kopperQueryBufferAge(struct dri_drawable *drawable)
{
struct dri_context *ctx = dri_get_current();
struct pipe_resource *ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT] ?
drawable->textures[ST_ATTACHMENT_BACK_LEFT] :
drawable->textures[ST_ATTACHMENT_FRONT_LEFT];
/* can't get buffer age from non-window swapchain */
if (!drawable->window_valid)
return 0;
/* Wait for glthread to finish because we can't use pipe_context from
* multiple threads.
*/
_mesa_glthread_finish(ctx->st->ctx);
return zink_kopper_query_buffer_age(ctx->st->pipe, ptex);
}
void
kopperQuerySurfaceSize(struct dri_drawable *drawable, int *width, int *height)
{
*width = drawable->w;
*height = drawable->h;
}
int
kopperGetSyncValues(struct dri_drawable *drawable, int64_t target_msc, int64_t divisor,
int64_t remainder, int64_t *ust, int64_t *msc, int64_t *sbc)
{
#ifdef VK_USE_PLATFORM_XCB_KHR
struct kopper_loader_info *info = &drawable->info;
assert(info->bos.sType == VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR);
VkXcbSurfaceCreateInfoKHR *xcb = (VkXcbSurfaceCreateInfoKHR *)&info->bos;
xcb_connection_t *conn = xcb->connection;
xcb_void_cookie_t cookie =
xcb_present_notify_msc(conn, xcb->window, 0, target_msc, divisor, remainder);
xcb_generic_event_t *event;
int ret = 0;
xcb_flush(conn);
while ((event = xcb_wait_for_special_event(conn, drawable->special_event)) != NULL) {
xcb_present_generic_event_t *ev = (xcb_present_generic_event_t *)event;
if (ev->evtype == XCB_PRESENT_COMPLETE_NOTIFY) {
xcb_present_complete_notify_event_t *ce =
(xcb_present_complete_notify_event_t *) event;
if (ce->kind == XCB_PRESENT_COMPLETE_KIND_NOTIFY_MSC) {
*ust = ce->ust;
*msc = ce->msc;
*sbc = ce->serial;
if (event->full_sequence != cookie.sequence) {
free(event);
continue;
}
ret = 1;
free(event);
break;
}
}
free(event);
}
return ret;
#else
return 0;
#endif
}
/* vim: set sw=3 ts=8 sts=3 expandtab: */