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mesa/src/vulkan/wsi/wsi_common_display.c

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/*
* Copyright © 2017 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include "util/macros.h"
#include <stdlib.h>
#include <stdio.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <poll.h>
#include <stdbool.h>
#include <math.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#ifdef HAVE_LIBUDEV
#include <libudev.h>
#endif
#include "drm-uapi/drm_fourcc.h"
#ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
#include <xcb/randr.h>
#include <X11/Xlib-xcb.h>
#endif
#include "util/hash_table.h"
#include "util/list.h"
#include "util/os_time.h"
#include "vk_device.h"
#include "vk_fence.h"
#include "vk_instance.h"
#include "vk_physical_device.h"
#include "vk_sync.h"
#include "vk_util.h"
#include "wsi_common_entrypoints.h"
#include "wsi_common_private.h"
#include "wsi_common_display.h"
#include "wsi_common_queue.h"
#if 0
#define wsi_display_debug(...) fprintf(stderr, __VA_ARGS__)
#define wsi_display_debug_code(...) __VA_ARGS__
#else
#define wsi_display_debug(...)
#define wsi_display_debug_code(...)
#endif
/* These have lifetime equal to the instance, so they effectively
* never go away. This means we must keep track of them separately
* from all other resources.
*/
typedef struct wsi_display_mode {
struct list_head list;
struct wsi_display_connector *connector;
bool valid; /* was found in most recent poll */
bool preferred;
uint32_t clock; /* in kHz */
uint16_t hdisplay, hsync_start, hsync_end, htotal, hskew;
uint16_t vdisplay, vsync_start, vsync_end, vtotal, vscan;
uint32_t flags;
} wsi_display_mode;
typedef struct wsi_display_connector {
struct list_head list;
struct wsi_display *wsi;
uint32_t id;
uint32_t crtc_id;
char *name;
bool connected;
bool active;
struct list_head display_modes;
wsi_display_mode *current_mode;
drmModeModeInfo current_drm_mode;
uint32_t dpms_property;
#ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
xcb_randr_output_t output;
#endif
} wsi_display_connector;
struct wsi_display {
struct wsi_interface base;
const VkAllocationCallbacks *alloc;
int fd;
/* Used with syncobj imported from driver side. */
int syncobj_fd;
pthread_mutex_t wait_mutex;
pthread_cond_t wait_cond;
pthread_t wait_thread;
pthread_cond_t hotplug_cond;
pthread_t hotplug_thread;
struct list_head connectors; /* list of all discovered connectors */
};
#define wsi_for_each_display_mode(_mode, _conn) \
list_for_each_entry_safe(struct wsi_display_mode, _mode, \
&(_conn)->display_modes, list)
#define wsi_for_each_connector(_conn, _dev) \
list_for_each_entry_safe(struct wsi_display_connector, _conn, \
&(_dev)->connectors, list)
enum wsi_image_state {
WSI_IMAGE_IDLE,
WSI_IMAGE_DRAWING,
WSI_IMAGE_QUEUED,
WSI_IMAGE_FLIPPING,
WSI_IMAGE_DISPLAYING
};
struct wsi_display_image {
struct wsi_image base;
struct wsi_display_swapchain *chain;
enum wsi_image_state state;
uint32_t fb_id;
uint32_t buffer[4];
uint64_t flip_sequence;
};
struct wsi_display_swapchain {
struct wsi_swapchain base;
struct wsi_display *wsi;
VkIcdSurfaceDisplay *surface;
uint64_t flip_sequence;
VkResult status;
struct wsi_display_image images[0];
};
struct wsi_display_fence {
struct list_head link;
struct wsi_display *wsi;
bool event_received;
bool destroyed;
uint32_t syncobj; /* syncobj to signal on event */
uint64_t sequence;
bool device_event; /* fence is used for device events */
};
struct wsi_display_sync {
struct vk_sync sync;
struct wsi_display_fence *fence;
};
static uint64_t fence_sequence;
ICD_DEFINE_NONDISP_HANDLE_CASTS(wsi_display_mode, VkDisplayModeKHR)
ICD_DEFINE_NONDISP_HANDLE_CASTS(wsi_display_connector, VkDisplayKHR)
static bool
wsi_display_mode_matches_drm(wsi_display_mode *wsi,
drmModeModeInfoPtr drm)
{
return wsi->clock == drm->clock &&
wsi->hdisplay == drm->hdisplay &&
wsi->hsync_start == drm->hsync_start &&
wsi->hsync_end == drm->hsync_end &&
wsi->htotal == drm->htotal &&
wsi->hskew == drm->hskew &&
wsi->vdisplay == drm->vdisplay &&
wsi->vsync_start == drm->vsync_start &&
wsi->vsync_end == drm->vsync_end &&
wsi->vtotal == drm->vtotal &&
MAX2(wsi->vscan, 1) == MAX2(drm->vscan, 1) &&
wsi->flags == drm->flags;
}
static double
wsi_display_mode_refresh(struct wsi_display_mode *wsi)
{
return (double) wsi->clock * 1000.0 / ((double) wsi->htotal *
(double) wsi->vtotal *
(double) MAX2(wsi->vscan, 1));
}
static uint64_t wsi_rel_to_abs_time(uint64_t rel_time)
{
uint64_t current_time = os_time_get_nano();
/* check for overflow */
if (rel_time > UINT64_MAX - current_time)
return UINT64_MAX;
return current_time + rel_time;
}
static struct wsi_display_mode *
wsi_display_find_drm_mode(struct wsi_device *wsi_device,
struct wsi_display_connector *connector,
drmModeModeInfoPtr mode)
{
wsi_for_each_display_mode(display_mode, connector) {
if (wsi_display_mode_matches_drm(display_mode, mode))
return display_mode;
}
return NULL;
}
static void
wsi_display_invalidate_connector_modes(struct wsi_device *wsi_device,
struct wsi_display_connector *connector)
{
wsi_for_each_display_mode(display_mode, connector) {
display_mode->valid = false;
}
}
static VkResult
wsi_display_register_drm_mode(struct wsi_device *wsi_device,
struct wsi_display_connector *connector,
drmModeModeInfoPtr drm_mode)
{
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
struct wsi_display_mode *display_mode =
wsi_display_find_drm_mode(wsi_device, connector, drm_mode);
if (display_mode) {
display_mode->valid = true;
return VK_SUCCESS;
}
display_mode = vk_zalloc(wsi->alloc, sizeof (struct wsi_display_mode),
8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (!display_mode)
return VK_ERROR_OUT_OF_HOST_MEMORY;
display_mode->connector = connector;
display_mode->valid = true;
display_mode->preferred = (drm_mode->type & DRM_MODE_TYPE_PREFERRED) != 0;
display_mode->clock = drm_mode->clock; /* kHz */
display_mode->hdisplay = drm_mode->hdisplay;
display_mode->hsync_start = drm_mode->hsync_start;
display_mode->hsync_end = drm_mode->hsync_end;
display_mode->htotal = drm_mode->htotal;
display_mode->hskew = drm_mode->hskew;
display_mode->vdisplay = drm_mode->vdisplay;
display_mode->vsync_start = drm_mode->vsync_start;
display_mode->vsync_end = drm_mode->vsync_end;
display_mode->vtotal = drm_mode->vtotal;
display_mode->vscan = drm_mode->vscan;
display_mode->flags = drm_mode->flags;
list_addtail(&display_mode->list, &connector->display_modes);
return VK_SUCCESS;
}
/*
* Update our information about a specific connector
*/
static struct wsi_display_connector *
wsi_display_find_connector(struct wsi_device *wsi_device,
uint32_t connector_id)
{
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
wsi_for_each_connector(connector, wsi) {
if (connector->id == connector_id)
return connector;
}
return NULL;
}
static struct wsi_display_connector *
wsi_display_alloc_connector(struct wsi_display *wsi,
uint32_t connector_id)
{
struct wsi_display_connector *connector =
vk_zalloc(wsi->alloc, sizeof (struct wsi_display_connector),
8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
connector->id = connector_id;
connector->wsi = wsi;
connector->active = false;
/* XXX use EDID name */
connector->name = "monitor";
list_inithead(&connector->display_modes);
return connector;
}
static struct wsi_display_connector *
wsi_display_get_connector(struct wsi_device *wsi_device,
int drm_fd,
uint32_t connector_id)
{
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
if (drm_fd < 0)
return NULL;
drmModeConnectorPtr drm_connector =
drmModeGetConnector(drm_fd, connector_id);
if (!drm_connector)
return NULL;
struct wsi_display_connector *connector =
wsi_display_find_connector(wsi_device, connector_id);
if (!connector) {
connector = wsi_display_alloc_connector(wsi, connector_id);
if (!connector) {
drmModeFreeConnector(drm_connector);
return NULL;
}
list_addtail(&connector->list, &wsi->connectors);
}
connector->connected = drm_connector->connection != DRM_MODE_DISCONNECTED;
/* Look for a DPMS property if we haven't already found one */
for (int p = 0; connector->dpms_property == 0 &&
p < drm_connector->count_props; p++)
{
drmModePropertyPtr prop = drmModeGetProperty(drm_fd,
drm_connector->props[p]);
if (!prop)
continue;
if (prop->flags & DRM_MODE_PROP_ENUM) {
if (!strcmp(prop->name, "DPMS"))
connector->dpms_property = drm_connector->props[p];
}
drmModeFreeProperty(prop);
}
/* Mark all connector modes as invalid */
wsi_display_invalidate_connector_modes(wsi_device, connector);
/*
* List current modes, adding new ones and marking existing ones as
* valid
*/
for (int m = 0; m < drm_connector->count_modes; m++) {
VkResult result = wsi_display_register_drm_mode(wsi_device,
connector,
&drm_connector->modes[m]);
if (result != VK_SUCCESS) {
drmModeFreeConnector(drm_connector);
return NULL;
}
}
drmModeFreeConnector(drm_connector);
return connector;
}
#define MM_PER_PIXEL (1.0/96.0 * 25.4)
static uint32_t
mode_size(struct wsi_display_mode *mode)
{
/* fortunately, these are both uint16_t, so this is easy */
return (uint32_t) mode->hdisplay * (uint32_t) mode->vdisplay;
}
static void
wsi_display_fill_in_display_properties(struct wsi_device *wsi_device,
struct wsi_display_connector *connector,
VkDisplayProperties2KHR *properties2)
{
assert(properties2->sType == VK_STRUCTURE_TYPE_DISPLAY_PROPERTIES_2_KHR);
VkDisplayPropertiesKHR *properties = &properties2->displayProperties;
properties->display = wsi_display_connector_to_handle(connector);
properties->displayName = connector->name;
/* Find the first preferred mode and assume that's the physical
* resolution. If there isn't a preferred mode, find the largest mode and
* use that.
*/
struct wsi_display_mode *preferred_mode = NULL, *largest_mode = NULL;
wsi_for_each_display_mode(display_mode, connector) {
if (!display_mode->valid)
continue;
if (display_mode->preferred) {
preferred_mode = display_mode;
break;
}
if (largest_mode == NULL ||
mode_size(display_mode) > mode_size(largest_mode))
{
largest_mode = display_mode;
}
}
if (preferred_mode) {
properties->physicalResolution.width = preferred_mode->hdisplay;
properties->physicalResolution.height = preferred_mode->vdisplay;
} else if (largest_mode) {
properties->physicalResolution.width = largest_mode->hdisplay;
properties->physicalResolution.height = largest_mode->vdisplay;
} else {
properties->physicalResolution.width = 1024;
properties->physicalResolution.height = 768;
}
/* Make up physical size based on 96dpi */
properties->physicalDimensions.width =
floor(properties->physicalResolution.width * MM_PER_PIXEL + 0.5);
properties->physicalDimensions.height =
floor(properties->physicalResolution.height * MM_PER_PIXEL + 0.5);
properties->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
properties->planeReorderPossible = VK_FALSE;
properties->persistentContent = VK_FALSE;
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_GetPhysicalDeviceDisplayPropertiesKHR(VkPhysicalDevice physicalDevice,
uint32_t *pPropertyCount,
VkDisplayPropertiesKHR *pProperties)
{
VK_FROM_HANDLE(vk_physical_device, pdevice, physicalDevice);
struct wsi_device *wsi_device = pdevice->wsi_device;
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
if (pProperties == NULL) {
return wsi_GetPhysicalDeviceDisplayProperties2KHR(physicalDevice,
pPropertyCount,
NULL);
} else {
/* If we're actually returning properties, allocate a temporary array of
* VkDisplayProperties2KHR structs, call properties2 to fill them out,
* and then copy them to the client. This seems a bit expensive but
* wsi_display_get_physical_device_display_properties2() calls
* drmModeGetResources() which does an ioctl and then a bunch of
* allocations so this should get lost in the noise.
*/
VkDisplayProperties2KHR *props2 =
vk_zalloc(wsi->alloc, sizeof(*props2) * *pPropertyCount, 8,
VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
if (props2 == NULL)
return VK_ERROR_OUT_OF_HOST_MEMORY;
for (uint32_t i = 0; i < *pPropertyCount; i++)
props2[i].sType = VK_STRUCTURE_TYPE_DISPLAY_PROPERTIES_2_KHR;
VkResult result =
wsi_GetPhysicalDeviceDisplayProperties2KHR(physicalDevice,
pPropertyCount, props2);
if (result == VK_SUCCESS || result == VK_INCOMPLETE) {
for (uint32_t i = 0; i < *pPropertyCount; i++)
pProperties[i] = props2[i].displayProperties;
}
vk_free(wsi->alloc, props2);
return result;
}
}
static VkResult
wsi_get_connectors(VkPhysicalDevice physicalDevice)
{
VK_FROM_HANDLE(vk_physical_device, pdevice, physicalDevice);
struct wsi_device *wsi_device = pdevice->wsi_device;
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
if (wsi->fd < 0)
return VK_SUCCESS;
drmModeResPtr mode_res = drmModeGetResources(wsi->fd);
if (!mode_res)
return VK_ERROR_OUT_OF_HOST_MEMORY;
/* Get current information */
for (int c = 0; c < mode_res->count_connectors; c++) {
struct wsi_display_connector *connector =
wsi_display_get_connector(wsi_device, wsi->fd,
mode_res->connectors[c]);
if (!connector) {
drmModeFreeResources(mode_res);
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
}
drmModeFreeResources(mode_res);
return VK_SUCCESS;
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_GetPhysicalDeviceDisplayProperties2KHR(VkPhysicalDevice physicalDevice,
uint32_t *pPropertyCount,
VkDisplayProperties2KHR *pProperties)
{
VK_FROM_HANDLE(vk_physical_device, pdevice, physicalDevice);
struct wsi_device *wsi_device = pdevice->wsi_device;
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
/* Get current information */
VkResult result = wsi_get_connectors(physicalDevice);
if (result != VK_SUCCESS)
goto bail;
VK_OUTARRAY_MAKE(conn, pProperties, pPropertyCount);
wsi_for_each_connector(connector, wsi) {
if (connector->connected) {
vk_outarray_append(&conn, prop) {
wsi_display_fill_in_display_properties(wsi_device,
connector,
prop);
}
}
}
return vk_outarray_status(&conn);
bail:
*pPropertyCount = 0;
return result;
}
/*
* Implement vkGetPhysicalDeviceDisplayPlanePropertiesKHR (VK_KHR_display
*/
static void
wsi_display_fill_in_display_plane_properties(
struct wsi_device *wsi_device,
struct wsi_display_connector *connector,
VkDisplayPlaneProperties2KHR *properties)
{
assert(properties->sType == VK_STRUCTURE_TYPE_DISPLAY_PLANE_PROPERTIES_2_KHR);
VkDisplayPlanePropertiesKHR *prop = &properties->displayPlaneProperties;
if (connector && connector->active) {
prop->currentDisplay = wsi_display_connector_to_handle(connector);
prop->currentStackIndex = 0;
} else {
prop->currentDisplay = VK_NULL_HANDLE;
prop->currentStackIndex = 0;
}
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_GetPhysicalDeviceDisplayPlanePropertiesKHR(VkPhysicalDevice physicalDevice,
uint32_t *pPropertyCount,
VkDisplayPlanePropertiesKHR *pProperties)
{
VK_FROM_HANDLE(vk_physical_device, pdevice, physicalDevice);
struct wsi_device *wsi_device = pdevice->wsi_device;
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
VkResult result = wsi_get_connectors(physicalDevice);
if (result != VK_SUCCESS)
goto bail;
VK_OUTARRAY_MAKE(conn, pProperties, pPropertyCount);
wsi_for_each_connector(connector, wsi) {
vk_outarray_append(&conn, prop) {
VkDisplayPlaneProperties2KHR prop2 = {
.sType = VK_STRUCTURE_TYPE_DISPLAY_PLANE_PROPERTIES_2_KHR,
};
wsi_display_fill_in_display_plane_properties(wsi_device, connector,
&prop2);
*prop = prop2.displayPlaneProperties;
}
}
return vk_outarray_status(&conn);
bail:
*pPropertyCount = 0;
return result;
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_GetPhysicalDeviceDisplayPlaneProperties2KHR(VkPhysicalDevice physicalDevice,
uint32_t *pPropertyCount,
VkDisplayPlaneProperties2KHR *pProperties)
{
VK_FROM_HANDLE(vk_physical_device, pdevice, physicalDevice);
struct wsi_device *wsi_device = pdevice->wsi_device;
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
/* Get current information */
VkResult result = wsi_get_connectors(physicalDevice);
if (result != VK_SUCCESS)
goto bail;
VK_OUTARRAY_MAKE(conn, pProperties, pPropertyCount);
wsi_for_each_connector(connector, wsi) {
vk_outarray_append(&conn, prop) {
wsi_display_fill_in_display_plane_properties(wsi_device, connector,
prop);
}
}
return vk_outarray_status(&conn);
bail:
*pPropertyCount = 0;
return result;
}
/*
* Implement vkGetDisplayPlaneSupportedDisplaysKHR (VK_KHR_display)
*/
VKAPI_ATTR VkResult VKAPI_CALL
wsi_GetDisplayPlaneSupportedDisplaysKHR(VkPhysicalDevice physicalDevice,
uint32_t planeIndex,
uint32_t *pDisplayCount,
VkDisplayKHR *pDisplays)
{
VK_FROM_HANDLE(vk_physical_device, pdevice, physicalDevice);
struct wsi_device *wsi_device = pdevice->wsi_device;
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
VK_OUTARRAY_MAKE(conn, pDisplays, pDisplayCount);
int c = 0;
wsi_for_each_connector(connector, wsi) {
if (c == planeIndex && connector->connected) {
vk_outarray_append(&conn, display) {
*display = wsi_display_connector_to_handle(connector);
}
}
c++;
}
return vk_outarray_status(&conn);
}
/*
* Implement vkGetDisplayModePropertiesKHR (VK_KHR_display)
*/
static void
wsi_display_fill_in_display_mode_properties(
struct wsi_device *wsi_device,
struct wsi_display_mode *display_mode,
VkDisplayModeProperties2KHR *properties)
{
assert(properties->sType == VK_STRUCTURE_TYPE_DISPLAY_MODE_PROPERTIES_2_KHR);
VkDisplayModePropertiesKHR *prop = &properties->displayModeProperties;
prop->displayMode = wsi_display_mode_to_handle(display_mode);
prop->parameters.visibleRegion.width = display_mode->hdisplay;
prop->parameters.visibleRegion.height = display_mode->vdisplay;
prop->parameters.refreshRate =
(uint32_t) (wsi_display_mode_refresh(display_mode) * 1000 + 0.5);
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_GetDisplayModePropertiesKHR(VkPhysicalDevice physicalDevice,
VkDisplayKHR display,
uint32_t *pPropertyCount,
VkDisplayModePropertiesKHR *pProperties)
{
VK_FROM_HANDLE(vk_physical_device, pdevice, physicalDevice);
struct wsi_device *wsi_device = pdevice->wsi_device;
struct wsi_display_connector *connector =
wsi_display_connector_from_handle(display);
VK_OUTARRAY_MAKE(conn, pProperties, pPropertyCount);
wsi_for_each_display_mode(display_mode, connector) {
if (!display_mode->valid)
continue;
vk_outarray_append(&conn, prop) {
VkDisplayModeProperties2KHR prop2 = {
.sType = VK_STRUCTURE_TYPE_DISPLAY_MODE_PROPERTIES_2_KHR,
};
wsi_display_fill_in_display_mode_properties(wsi_device,
display_mode, &prop2);
*prop = prop2.displayModeProperties;
}
}
return vk_outarray_status(&conn);
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_GetDisplayModeProperties2KHR(VkPhysicalDevice physicalDevice,
VkDisplayKHR display,
uint32_t *pPropertyCount,
VkDisplayModeProperties2KHR *pProperties)
{
VK_FROM_HANDLE(vk_physical_device, pdevice, physicalDevice);
struct wsi_device *wsi_device = pdevice->wsi_device;
struct wsi_display_connector *connector =
wsi_display_connector_from_handle(display);
VK_OUTARRAY_MAKE(conn, pProperties, pPropertyCount);
wsi_for_each_display_mode(display_mode, connector) {
if (!display_mode->valid)
continue;
vk_outarray_append(&conn, prop) {
wsi_display_fill_in_display_mode_properties(wsi_device,
display_mode, prop);
}
}
return vk_outarray_status(&conn);
}
static bool
wsi_display_mode_matches_vk(wsi_display_mode *wsi,
const VkDisplayModeParametersKHR *vk)
{
return (vk->visibleRegion.width == wsi->hdisplay &&
vk->visibleRegion.height == wsi->vdisplay &&
fabs(wsi_display_mode_refresh(wsi) * 1000.0 - vk->refreshRate) < 10);
}
/*
* Implement vkCreateDisplayModeKHR (VK_KHR_display)
*/
VKAPI_ATTR VkResult VKAPI_CALL
wsi_CreateDisplayModeKHR(VkPhysicalDevice physicalDevice,
VkDisplayKHR display,
const VkDisplayModeCreateInfoKHR *pCreateInfo,
const VkAllocationCallbacks *pAllocator,
VkDisplayModeKHR *pMode)
{
struct wsi_display_connector *connector =
wsi_display_connector_from_handle(display);
if (pCreateInfo->flags != 0)
return VK_ERROR_INITIALIZATION_FAILED;
/* Check and see if the requested mode happens to match an existing one and
* return that. This makes the conformance suite happy. Doing more than
* this would involve embedding the CVT function into the driver, which seems
* excessive.
*/
wsi_for_each_display_mode(display_mode, connector) {
if (display_mode->valid) {
if (wsi_display_mode_matches_vk(display_mode, &pCreateInfo->parameters)) {
*pMode = wsi_display_mode_to_handle(display_mode);
return VK_SUCCESS;
}
}
}
return VK_ERROR_INITIALIZATION_FAILED;
}
/*
* Implement vkGetDisplayPlaneCapabilities
*/
VKAPI_ATTR VkResult VKAPI_CALL
wsi_GetDisplayPlaneCapabilitiesKHR(VkPhysicalDevice physicalDevice,
VkDisplayModeKHR _mode,
uint32_t planeIndex,
VkDisplayPlaneCapabilitiesKHR *pCapabilities)
{
struct wsi_display_mode *mode = wsi_display_mode_from_handle(_mode);
/* XXX use actual values */
pCapabilities->supportedAlpha = VK_DISPLAY_PLANE_ALPHA_OPAQUE_BIT_KHR;
pCapabilities->minSrcPosition.x = 0;
pCapabilities->minSrcPosition.y = 0;
pCapabilities->maxSrcPosition.x = 0;
pCapabilities->maxSrcPosition.y = 0;
pCapabilities->minSrcExtent.width = mode->hdisplay;
pCapabilities->minSrcExtent.height = mode->vdisplay;
pCapabilities->maxSrcExtent.width = mode->hdisplay;
pCapabilities->maxSrcExtent.height = mode->vdisplay;
pCapabilities->minDstPosition.x = 0;
pCapabilities->minDstPosition.y = 0;
pCapabilities->maxDstPosition.x = 0;
pCapabilities->maxDstPosition.y = 0;
pCapabilities->minDstExtent.width = mode->hdisplay;
pCapabilities->minDstExtent.height = mode->vdisplay;
pCapabilities->maxDstExtent.width = mode->hdisplay;
pCapabilities->maxDstExtent.height = mode->vdisplay;
return VK_SUCCESS;
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_GetDisplayPlaneCapabilities2KHR(VkPhysicalDevice physicalDevice,
const VkDisplayPlaneInfo2KHR *pDisplayPlaneInfo,
VkDisplayPlaneCapabilities2KHR *pCapabilities)
{
assert(pCapabilities->sType ==
VK_STRUCTURE_TYPE_DISPLAY_PLANE_CAPABILITIES_2_KHR);
VkResult result =
wsi_GetDisplayPlaneCapabilitiesKHR(physicalDevice,
pDisplayPlaneInfo->mode,
pDisplayPlaneInfo->planeIndex,
&pCapabilities->capabilities);
vk_foreach_struct(ext, pCapabilities->pNext) {
switch (ext->sType) {
case VK_STRUCTURE_TYPE_SURFACE_PROTECTED_CAPABILITIES_KHR: {
VkSurfaceProtectedCapabilitiesKHR *protected = (void *)ext;
protected->supportsProtected = VK_FALSE;
break;
}
default:
/* Ignored */
break;
}
}
return result;
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_CreateDisplayPlaneSurfaceKHR(VkInstance _instance,
const VkDisplaySurfaceCreateInfoKHR *pCreateInfo,
const VkAllocationCallbacks *pAllocator,
VkSurfaceKHR *pSurface)
{
VK_FROM_HANDLE(vk_instance, instance, _instance);
VkIcdSurfaceDisplay *surface;
assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_DISPLAY_SURFACE_CREATE_INFO_KHR);
surface = vk_zalloc2(&instance->alloc, pAllocator, sizeof(*surface), 8,
VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
if (surface == NULL)
return VK_ERROR_OUT_OF_HOST_MEMORY;
surface->base.platform = VK_ICD_WSI_PLATFORM_DISPLAY;
surface->displayMode = pCreateInfo->displayMode;
surface->planeIndex = pCreateInfo->planeIndex;
surface->planeStackIndex = pCreateInfo->planeStackIndex;
surface->transform = pCreateInfo->transform;
surface->globalAlpha = pCreateInfo->globalAlpha;
surface->alphaMode = pCreateInfo->alphaMode;
surface->imageExtent = pCreateInfo->imageExtent;
*pSurface = VkIcdSurfaceBase_to_handle(&surface->base);
return VK_SUCCESS;
}
static VkResult
wsi_display_surface_get_support(VkIcdSurfaceBase *surface,
struct wsi_device *wsi_device,
uint32_t queueFamilyIndex,
VkBool32* pSupported)
{
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
*pSupported = wsi->fd != -1;
return VK_SUCCESS;
}
static VkResult
wsi_display_surface_get_capabilities(VkIcdSurfaceBase *surface_base,
struct wsi_device *wsi_device,
VkSurfaceCapabilitiesKHR* caps)
{
VkIcdSurfaceDisplay *surface = (VkIcdSurfaceDisplay *) surface_base;
wsi_display_mode *mode = wsi_display_mode_from_handle(surface->displayMode);
caps->currentExtent.width = mode->hdisplay;
caps->currentExtent.height = mode->vdisplay;
caps->minImageExtent = (VkExtent2D) { 1, 1 };
caps->maxImageExtent = (VkExtent2D) {
wsi_device->maxImageDimension2D,
wsi_device->maxImageDimension2D,
};
caps->supportedCompositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
caps->minImageCount = 2;
caps->maxImageCount = 0;
caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
caps->maxImageArrayLayers = 1;
caps->supportedUsageFlags =
VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
VK_IMAGE_USAGE_SAMPLED_BIT |
VK_IMAGE_USAGE_TRANSFER_DST_BIT |
VK_IMAGE_USAGE_STORAGE_BIT |
VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT;
return VK_SUCCESS;
}
static VkResult
wsi_display_surface_get_surface_counters(
VkIcdSurfaceBase *surface_base,
VkSurfaceCounterFlagsEXT *counters)
{
*counters = VK_SURFACE_COUNTER_VBLANK_EXT;
return VK_SUCCESS;
}
static VkResult
wsi_display_surface_get_capabilities2(VkIcdSurfaceBase *icd_surface,
struct wsi_device *wsi_device,
const void *info_next,
VkSurfaceCapabilities2KHR *caps)
{
assert(caps->sType == VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_KHR);
VkResult result;
result = wsi_display_surface_get_capabilities(icd_surface, wsi_device,
&caps->surfaceCapabilities);
if (result != VK_SUCCESS)
return result;
struct wsi_surface_supported_counters *counters =
vk_find_struct( caps->pNext, WSI_SURFACE_SUPPORTED_COUNTERS_MESA);
if (counters) {
result = wsi_display_surface_get_surface_counters(
icd_surface,
&counters->supported_surface_counters);
}
return result;
}
static const struct {
VkFormat format;
uint32_t drm_format;
} available_surface_formats[] = {
{ .format = VK_FORMAT_B8G8R8A8_SRGB, .drm_format = DRM_FORMAT_XRGB8888 },
{ .format = VK_FORMAT_B8G8R8A8_UNORM, .drm_format = DRM_FORMAT_XRGB8888 },
};
static void
get_sorted_vk_formats(struct wsi_device *wsi_device, VkFormat *sorted_formats)
{
for (unsigned i = 0; i < ARRAY_SIZE(available_surface_formats); i++)
sorted_formats[i] = available_surface_formats[i].format;
if (wsi_device->force_bgra8_unorm_first) {
for (unsigned i = 0; i < ARRAY_SIZE(available_surface_formats); i++) {
if (sorted_formats[i] == VK_FORMAT_B8G8R8A8_UNORM) {
sorted_formats[i] = sorted_formats[0];
sorted_formats[0] = VK_FORMAT_B8G8R8A8_UNORM;
break;
}
}
}
}
static VkResult
wsi_display_surface_get_formats(VkIcdSurfaceBase *icd_surface,
struct wsi_device *wsi_device,
uint32_t *surface_format_count,
VkSurfaceFormatKHR *surface_formats)
{
VK_OUTARRAY_MAKE(out, surface_formats, surface_format_count);
VkFormat sorted_formats[ARRAY_SIZE(available_surface_formats)];
get_sorted_vk_formats(wsi_device, sorted_formats);
for (unsigned i = 0; i < ARRAY_SIZE(sorted_formats); i++) {
vk_outarray_append(&out, f) {
f->format = sorted_formats[i];
f->colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
}
}
return vk_outarray_status(&out);
}
static VkResult
wsi_display_surface_get_formats2(VkIcdSurfaceBase *surface,
struct wsi_device *wsi_device,
const void *info_next,
uint32_t *surface_format_count,
VkSurfaceFormat2KHR *surface_formats)
{
VK_OUTARRAY_MAKE(out, surface_formats, surface_format_count);
VkFormat sorted_formats[ARRAY_SIZE(available_surface_formats)];
get_sorted_vk_formats(wsi_device, sorted_formats);
for (unsigned i = 0; i < ARRAY_SIZE(sorted_formats); i++) {
vk_outarray_append(&out, f) {
assert(f->sType == VK_STRUCTURE_TYPE_SURFACE_FORMAT_2_KHR);
f->surfaceFormat.format = sorted_formats[i];
f->surfaceFormat.colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
}
}
return vk_outarray_status(&out);
}
static VkResult
wsi_display_surface_get_present_modes(VkIcdSurfaceBase *surface,
uint32_t *present_mode_count,
VkPresentModeKHR *present_modes)
{
VK_OUTARRAY_MAKE(conn, present_modes, present_mode_count);
vk_outarray_append(&conn, present) {
*present = VK_PRESENT_MODE_FIFO_KHR;
}
return vk_outarray_status(&conn);
}
static VkResult
wsi_display_surface_get_present_rectangles(VkIcdSurfaceBase *surface_base,
struct wsi_device *wsi_device,
uint32_t* pRectCount,
VkRect2D* pRects)
{
VkIcdSurfaceDisplay *surface = (VkIcdSurfaceDisplay *) surface_base;
wsi_display_mode *mode = wsi_display_mode_from_handle(surface->displayMode);
VK_OUTARRAY_MAKE(out, pRects, pRectCount);
if (wsi_device_matches_drm_fd(wsi_device, mode->connector->wsi->fd)) {
vk_outarray_append(&out, rect) {
*rect = (VkRect2D) {
.offset = { 0, 0 },
.extent = { mode->hdisplay, mode->vdisplay },
};
}
}
return vk_outarray_status(&out);
}
static void
wsi_display_destroy_buffer(struct wsi_display *wsi,
uint32_t buffer)
{
(void) drmIoctl(wsi->fd, DRM_IOCTL_GEM_CLOSE,
&((struct drm_gem_close) { .handle = buffer }));
}
static VkResult
wsi_display_image_init(VkDevice device_h,
struct wsi_swapchain *drv_chain,
const VkSwapchainCreateInfoKHR *create_info,
const VkAllocationCallbacks *allocator,
struct wsi_display_image *image)
{
struct wsi_display_swapchain *chain =
(struct wsi_display_swapchain *) drv_chain;
struct wsi_display *wsi = chain->wsi;
uint32_t drm_format = 0;
for (unsigned i = 0; i < ARRAY_SIZE(available_surface_formats); i++) {
if (create_info->imageFormat == available_surface_formats[i].format) {
drm_format = available_surface_formats[i].drm_format;
break;
}
}
/* the application provided an invalid format, bail */
if (drm_format == 0)
return VK_ERROR_DEVICE_LOST;
VkResult result = wsi_create_image(&chain->base, &chain->base.image_info,
&image->base);
if (result != VK_SUCCESS)
return result;
memset(image->buffer, 0, sizeof (image->buffer));
for (unsigned int i = 0; i < image->base.num_planes; i++) {
int ret = drmPrimeFDToHandle(wsi->fd, image->base.fds[i],
&image->buffer[i]);
close(image->base.fds[i]);
image->base.fds[i] = -1;
if (ret < 0)
goto fail_handle;
}
image->chain = chain;
image->state = WSI_IMAGE_IDLE;
image->fb_id = 0;
int ret = drmModeAddFB2(wsi->fd,
create_info->imageExtent.width,
create_info->imageExtent.height,
drm_format,
image->buffer,
image->base.row_pitches,
image->base.offsets,
&image->fb_id, 0);
if (ret)
goto fail_fb;
return VK_SUCCESS;
fail_fb:
fail_handle:
for (unsigned int i = 0; i < image->base.num_planes; i++) {
if (image->buffer[i])
wsi_display_destroy_buffer(wsi, image->buffer[i]);
if (image->base.fds[i] != -1) {
close(image->base.fds[i]);
image->base.fds[i] = -1;
}
}
wsi_destroy_image(&chain->base, &image->base);
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
static void
wsi_display_image_finish(struct wsi_swapchain *drv_chain,
const VkAllocationCallbacks *allocator,
struct wsi_display_image *image)
{
struct wsi_display_swapchain *chain =
(struct wsi_display_swapchain *) drv_chain;
struct wsi_display *wsi = chain->wsi;
drmModeRmFB(wsi->fd, image->fb_id);
for (unsigned int i = 0; i < image->base.num_planes; i++)
wsi_display_destroy_buffer(wsi, image->buffer[i]);
wsi_destroy_image(&chain->base, &image->base);
}
static VkResult
wsi_display_swapchain_destroy(struct wsi_swapchain *drv_chain,
const VkAllocationCallbacks *allocator)
{
struct wsi_display_swapchain *chain =
(struct wsi_display_swapchain *) drv_chain;
for (uint32_t i = 0; i < chain->base.image_count; i++)
wsi_display_image_finish(drv_chain, allocator, &chain->images[i]);
wsi_destroy_image_info(&chain->base, &chain->base.image_info);
wsi_swapchain_finish(&chain->base);
vk_free(allocator, chain);
return VK_SUCCESS;
}
static struct wsi_image *
wsi_display_get_wsi_image(struct wsi_swapchain *drv_chain,
uint32_t image_index)
{
struct wsi_display_swapchain *chain =
(struct wsi_display_swapchain *) drv_chain;
return &chain->images[image_index].base;
}
static void
wsi_display_idle_old_displaying(struct wsi_display_image *active_image)
{
struct wsi_display_swapchain *chain = active_image->chain;
wsi_display_debug("idle everyone but %ld\n",
active_image - &(chain->images[0]));
for (uint32_t i = 0; i < chain->base.image_count; i++)
if (chain->images[i].state == WSI_IMAGE_DISPLAYING &&
&chain->images[i] != active_image)
{
wsi_display_debug("idle %d\n", i);
chain->images[i].state = WSI_IMAGE_IDLE;
}
}
static VkResult
_wsi_display_queue_next(struct wsi_swapchain *drv_chain);
static void
wsi_display_page_flip_handler2(int fd,
unsigned int frame,
unsigned int sec,
unsigned int usec,
uint32_t crtc_id,
void *data)
{
struct wsi_display_image *image = data;
struct wsi_display_swapchain *chain = image->chain;
wsi_display_debug("image %ld displayed at %d\n",
image - &(image->chain->images[0]), frame);
image->state = WSI_IMAGE_DISPLAYING;
wsi_display_idle_old_displaying(image);
VkResult result = _wsi_display_queue_next(&(chain->base));
if (result != VK_SUCCESS)
chain->status = result;
}
static void wsi_display_fence_event_handler(struct wsi_display_fence *fence);
static void wsi_display_page_flip_handler(int fd,
unsigned int frame,
unsigned int sec,
unsigned int usec,
void *data)
{
wsi_display_page_flip_handler2(fd, frame, sec, usec, 0, data);
}
static void wsi_display_vblank_handler(int fd, unsigned int frame,
unsigned int sec, unsigned int usec,
void *data)
{
struct wsi_display_fence *fence = data;
wsi_display_fence_event_handler(fence);
}
static void wsi_display_sequence_handler(int fd, uint64_t frame,
uint64_t nsec, uint64_t user_data)
{
struct wsi_display_fence *fence =
(struct wsi_display_fence *) (uintptr_t) user_data;
wsi_display_fence_event_handler(fence);
}
static drmEventContext event_context = {
.version = DRM_EVENT_CONTEXT_VERSION,
.page_flip_handler = wsi_display_page_flip_handler,
#if DRM_EVENT_CONTEXT_VERSION >= 3
.page_flip_handler2 = wsi_display_page_flip_handler2,
#endif
.vblank_handler = wsi_display_vblank_handler,
.sequence_handler = wsi_display_sequence_handler,
};
static void *
wsi_display_wait_thread(void *data)
{
struct wsi_display *wsi = data;
struct pollfd pollfd = {
.fd = wsi->fd,
.events = POLLIN
};
pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
for (;;) {
int ret = poll(&pollfd, 1, -1);
if (ret > 0) {
pthread_mutex_lock(&wsi->wait_mutex);
(void) drmHandleEvent(wsi->fd, &event_context);
pthread_cond_broadcast(&wsi->wait_cond);
pthread_mutex_unlock(&wsi->wait_mutex);
}
}
return NULL;
}
static int
wsi_display_start_wait_thread(struct wsi_display *wsi)
{
if (!wsi->wait_thread) {
int ret = pthread_create(&wsi->wait_thread, NULL,
wsi_display_wait_thread, wsi);
if (ret)
return ret;
}
return 0;
}
static void
wsi_display_stop_wait_thread(struct wsi_display *wsi)
{
pthread_mutex_lock(&wsi->wait_mutex);
if (wsi->wait_thread) {
pthread_cancel(wsi->wait_thread);
pthread_join(wsi->wait_thread, NULL);
wsi->wait_thread = 0;
}
pthread_mutex_unlock(&wsi->wait_mutex);
}
static int
cond_timedwait_ns(pthread_cond_t *cond,
pthread_mutex_t *mutex,
uint64_t timeout_ns)
{
struct timespec abs_timeout = {
.tv_sec = timeout_ns / 1000000000ULL,
.tv_nsec = timeout_ns % 1000000000ULL,
};
int ret = pthread_cond_timedwait(cond, mutex, &abs_timeout);
wsi_display_debug("%9ld done waiting for event %d\n", pthread_self(), ret);
return ret;
}
/*
* Wait for at least one event from the kernel to be processed.
* Call with wait_mutex held
*/
static int
wsi_display_wait_for_event(struct wsi_display *wsi,
uint64_t timeout_ns)
{
int ret = wsi_display_start_wait_thread(wsi);
if (ret)
return ret;
return cond_timedwait_ns(&wsi->wait_cond, &wsi->wait_mutex, timeout_ns);
}
/* Wait for device event to be processed.
* Call with wait_mutex held
*/
static int
wsi_device_wait_for_event(struct wsi_display *wsi,
uint64_t timeout_ns)
{
return cond_timedwait_ns(&wsi->hotplug_cond, &wsi->wait_mutex, timeout_ns);
}
static VkResult
wsi_display_acquire_next_image(struct wsi_swapchain *drv_chain,
const VkAcquireNextImageInfoKHR *info,
uint32_t *image_index)
{
struct wsi_display_swapchain *chain =
(struct wsi_display_swapchain *)drv_chain;
struct wsi_display *wsi = chain->wsi;
int ret = 0;
VkResult result = VK_SUCCESS;
/* Bail early if the swapchain is broken */
if (chain->status != VK_SUCCESS)
return chain->status;
uint64_t timeout = info->timeout;
if (timeout != 0 && timeout != UINT64_MAX)
timeout = wsi_rel_to_abs_time(timeout);
pthread_mutex_lock(&wsi->wait_mutex);
for (;;) {
for (uint32_t i = 0; i < chain->base.image_count; i++) {
if (chain->images[i].state == WSI_IMAGE_IDLE) {
*image_index = i;
wsi_display_debug("image %d available\n", i);
chain->images[i].state = WSI_IMAGE_DRAWING;
result = VK_SUCCESS;
goto done;
}
wsi_display_debug("image %d state %d\n", i, chain->images[i].state);
}
if (ret == ETIMEDOUT) {
result = VK_TIMEOUT;
goto done;
}
ret = wsi_display_wait_for_event(wsi, timeout);
if (ret && ret != ETIMEDOUT) {
result = VK_ERROR_SURFACE_LOST_KHR;
goto done;
}
}
done:
pthread_mutex_unlock(&wsi->wait_mutex);
if (result != VK_SUCCESS)
return result;
return chain->status;
}
/*
* Check whether there are any other connectors driven by this crtc
*/
static bool
wsi_display_crtc_solo(struct wsi_display *wsi,
drmModeResPtr mode_res,
drmModeConnectorPtr connector,
uint32_t crtc_id)
{
/* See if any other connectors share the same encoder */
for (int c = 0; c < mode_res->count_connectors; c++) {
if (mode_res->connectors[c] == connector->connector_id)
continue;
drmModeConnectorPtr other_connector =
drmModeGetConnector(wsi->fd, mode_res->connectors[c]);
if (other_connector) {
bool match = (other_connector->encoder_id == connector->encoder_id);
drmModeFreeConnector(other_connector);
if (match)
return false;
}
}
/* See if any other encoders share the same crtc */
for (int e = 0; e < mode_res->count_encoders; e++) {
if (mode_res->encoders[e] == connector->encoder_id)
continue;
drmModeEncoderPtr other_encoder =
drmModeGetEncoder(wsi->fd, mode_res->encoders[e]);
if (other_encoder) {
bool match = (other_encoder->crtc_id == crtc_id);
drmModeFreeEncoder(other_encoder);
if (match)
return false;
}
}
return true;
}
/*
* Pick a suitable CRTC to drive this connector. Prefer a CRTC which is
* currently driving this connector and not any others. Settle for a CRTC
* which is currently idle.
*/
static uint32_t
wsi_display_select_crtc(const struct wsi_display_connector *connector,
drmModeResPtr mode_res,
drmModeConnectorPtr drm_connector)
{
struct wsi_display *wsi = connector->wsi;
/* See what CRTC is currently driving this connector */
if (drm_connector->encoder_id) {
drmModeEncoderPtr encoder =
drmModeGetEncoder(wsi->fd, drm_connector->encoder_id);
if (encoder) {
uint32_t crtc_id = encoder->crtc_id;
drmModeFreeEncoder(encoder);
if (crtc_id) {
if (wsi_display_crtc_solo(wsi, mode_res, drm_connector, crtc_id))
return crtc_id;
}
}
}
uint32_t crtc_id = 0;
for (int c = 0; crtc_id == 0 && c < mode_res->count_crtcs; c++) {
drmModeCrtcPtr crtc = drmModeGetCrtc(wsi->fd, mode_res->crtcs[c]);
if (crtc && crtc->buffer_id == 0)
crtc_id = crtc->crtc_id;
drmModeFreeCrtc(crtc);
}
return crtc_id;
}
static VkResult
wsi_display_setup_connector(wsi_display_connector *connector,
wsi_display_mode *display_mode)
{
struct wsi_display *wsi = connector->wsi;
if (connector->current_mode == display_mode && connector->crtc_id)
return VK_SUCCESS;
VkResult result = VK_SUCCESS;
drmModeResPtr mode_res = drmModeGetResources(wsi->fd);
if (!mode_res) {
if (errno == ENOMEM)
result = VK_ERROR_OUT_OF_HOST_MEMORY;
else
result = VK_ERROR_SURFACE_LOST_KHR;
goto bail;
}
drmModeConnectorPtr drm_connector =
drmModeGetConnectorCurrent(wsi->fd, connector->id);
if (!drm_connector) {
if (errno == ENOMEM)
result = VK_ERROR_OUT_OF_HOST_MEMORY;
else
result = VK_ERROR_SURFACE_LOST_KHR;
goto bail_mode_res;
}
/* Pick a CRTC if we don't have one */
if (!connector->crtc_id) {
connector->crtc_id = wsi_display_select_crtc(connector,
mode_res, drm_connector);
if (!connector->crtc_id) {
result = VK_ERROR_SURFACE_LOST_KHR;
goto bail_connector;
}
}
if (connector->current_mode != display_mode) {
/* Find the drm mode corresponding to the requested VkDisplayMode */
drmModeModeInfoPtr drm_mode = NULL;
for (int m = 0; m < drm_connector->count_modes; m++) {
drm_mode = &drm_connector->modes[m];
if (wsi_display_mode_matches_drm(display_mode, drm_mode))
break;
drm_mode = NULL;
}
if (!drm_mode) {
result = VK_ERROR_SURFACE_LOST_KHR;
goto bail_connector;
}
connector->current_mode = display_mode;
connector->current_drm_mode = *drm_mode;
}
bail_connector:
drmModeFreeConnector(drm_connector);
bail_mode_res:
drmModeFreeResources(mode_res);
bail:
return result;
}
static VkResult
wsi_display_fence_wait(struct wsi_display_fence *fence, uint64_t timeout)
{
wsi_display_debug("%9lu wait fence %lu %ld\n",
pthread_self(), fence->sequence,
(int64_t) (timeout - os_time_get_nano()));
wsi_display_debug_code(uint64_t start_ns = os_time_get_nano());
pthread_mutex_lock(&fence->wsi->wait_mutex);
VkResult result;
int ret = 0;
for (;;) {
if (fence->event_received) {
wsi_display_debug("%9lu fence %lu passed\n",
pthread_self(), fence->sequence);
result = VK_SUCCESS;
break;
}
if (ret == ETIMEDOUT) {
wsi_display_debug("%9lu fence %lu timeout\n",
pthread_self(), fence->sequence);
result = VK_TIMEOUT;
break;
}
if (fence->device_event)
ret = wsi_device_wait_for_event(fence->wsi, timeout);
else
ret = wsi_display_wait_for_event(fence->wsi, timeout);
if (ret && ret != ETIMEDOUT) {
wsi_display_debug("%9lu fence %lu error\n",
pthread_self(), fence->sequence);
result = VK_ERROR_DEVICE_LOST;
break;
}
}
pthread_mutex_unlock(&fence->wsi->wait_mutex);
wsi_display_debug("%9lu fence wait %f ms\n",
pthread_self(),
((int64_t) (os_time_get_nano() - start_ns)) /
1.0e6);
return result;
}
static void
wsi_display_fence_check_free(struct wsi_display_fence *fence)
{
if (fence->event_received && fence->destroyed)
vk_free(fence->wsi->alloc, fence);
}
static void wsi_display_fence_event_handler(struct wsi_display_fence *fence)
{
if (fence->syncobj) {
(void) drmSyncobjSignal(fence->wsi->syncobj_fd, &fence->syncobj, 1);
(void) drmSyncobjDestroy(fence->wsi->syncobj_fd, fence->syncobj);
}
fence->event_received = true;
wsi_display_fence_check_free(fence);
}
static void
wsi_display_fence_destroy(struct wsi_display_fence *fence)
{
/* Destroy hotplug fence list. */
if (fence->device_event) {
mtx_lock(&fence->wsi->wait_mutex);
list_del(&fence->link);
mtx_unlock(&fence->wsi->wait_mutex);
fence->event_received = true;
}
assert(!fence->destroyed);
fence->destroyed = true;
wsi_display_fence_check_free(fence);
}
static struct wsi_display_fence *
wsi_display_fence_alloc(struct wsi_display *wsi, int sync_fd)
{
struct wsi_display_fence *fence =
vk_zalloc(wsi->alloc, sizeof (*fence),
8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (!fence)
return NULL;
if (sync_fd >= 0) {
int ret = drmSyncobjFDToHandle(wsi->syncobj_fd, sync_fd, &fence->syncobj);
if (ret) {
vk_free(wsi->alloc, fence);
return NULL;
}
}
fence->wsi = wsi;
fence->event_received = false;
fence->destroyed = false;
fence->sequence = ++fence_sequence;
return fence;
}
static VkResult
wsi_display_sync_init(struct vk_device *device,
struct vk_sync *sync,
uint64_t initial_value)
{
assert(initial_value == 0);
return VK_SUCCESS;
}
static void
wsi_display_sync_finish(struct vk_device *device,
struct vk_sync *sync)
{
struct wsi_display_sync *wsi_sync =
container_of(sync, struct wsi_display_sync, sync);
if (wsi_sync->fence)
wsi_display_fence_destroy(wsi_sync->fence);
}
static VkResult
wsi_display_sync_wait(struct vk_device *device,
struct vk_sync *sync,
uint64_t wait_value,
enum vk_sync_wait_flags wait_flags,
uint64_t abs_timeout_ns)
{
struct wsi_display_sync *wsi_sync =
container_of(sync, struct wsi_display_sync, sync);
assert(wait_value == 0);
assert(wait_flags == VK_SYNC_WAIT_COMPLETE);
return wsi_display_fence_wait(wsi_sync->fence, abs_timeout_ns);
}
static const struct vk_sync_type wsi_display_sync_type = {
.size = sizeof(struct wsi_display_sync),
.features = VK_SYNC_FEATURE_BINARY |
VK_SYNC_FEATURE_CPU_WAIT,
.init = wsi_display_sync_init,
.finish = wsi_display_sync_finish,
.wait = wsi_display_sync_wait,
};
static VkResult
wsi_display_sync_create(struct vk_device *device,
struct wsi_display_fence *fence,
struct vk_sync **sync_out)
{
VkResult result = vk_sync_create(device, &wsi_display_sync_type,
0 /* flags */,
0 /* initial_value */, sync_out);
if (result != VK_SUCCESS)
return result;
struct wsi_display_sync *sync =
container_of(*sync_out, struct wsi_display_sync, sync);
sync->fence = fence;
return VK_SUCCESS;
}
static VkResult
wsi_register_vblank_event(struct wsi_display_fence *fence,
const struct wsi_device *wsi_device,
VkDisplayKHR display,
uint32_t flags,
uint64_t frame_requested,
uint64_t *frame_queued)
{
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
struct wsi_display_connector *connector =
wsi_display_connector_from_handle(display);
if (wsi->fd < 0)
return VK_ERROR_INITIALIZATION_FAILED;
/* A display event may be registered before the first page flip at which
* point crtc_id will be 0. If this is the case we setup the connector
* here to allow drmCrtcQueueSequence to succeed.
*/
if (!connector->crtc_id) {
VkResult ret = wsi_display_setup_connector(connector,
connector->current_mode);
if (ret != VK_SUCCESS)
return VK_ERROR_INITIALIZATION_FAILED;
}
for (;;) {
int ret = drmCrtcQueueSequence(wsi->fd, connector->crtc_id,
flags,
frame_requested,
frame_queued,
(uintptr_t) fence);
if (!ret)
return VK_SUCCESS;
if (errno != ENOMEM) {
/* Something unexpected happened. Pause for a moment so the
* application doesn't just spin and then return a failure indication
*/
wsi_display_debug("queue vblank event %lu failed\n", fence->sequence);
struct timespec delay = {
.tv_sec = 0,
.tv_nsec = 100000000ull,
};
nanosleep(&delay, NULL);
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
/* The kernel event queue is full. Wait for some events to be
* processed and try again
*/
pthread_mutex_lock(&wsi->wait_mutex);
ret = wsi_display_wait_for_event(wsi, wsi_rel_to_abs_time(100000000ull));
pthread_mutex_unlock(&wsi->wait_mutex);
if (ret) {
wsi_display_debug("vblank queue full, event wait failed\n");
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
}
}
/*
* Check to see if the kernel has no flip queued and if there's an image
* waiting to be displayed.
*/
static VkResult
_wsi_display_queue_next(struct wsi_swapchain *drv_chain)
{
struct wsi_display_swapchain *chain =
(struct wsi_display_swapchain *) drv_chain;
struct wsi_display *wsi = chain->wsi;
VkIcdSurfaceDisplay *surface = chain->surface;
wsi_display_mode *display_mode =
wsi_display_mode_from_handle(surface->displayMode);
wsi_display_connector *connector = display_mode->connector;
if (wsi->fd < 0)
return VK_ERROR_SURFACE_LOST_KHR;
if (display_mode != connector->current_mode)
connector->active = false;
for (;;) {
/* Check to see if there is an image to display, or if some image is
* already queued */
struct wsi_display_image *image = NULL;
for (uint32_t i = 0; i < chain->base.image_count; i++) {
struct wsi_display_image *tmp_image = &chain->images[i];
switch (tmp_image->state) {
case WSI_IMAGE_FLIPPING:
/* already flipping, don't send another to the kernel yet */
return VK_SUCCESS;
case WSI_IMAGE_QUEUED:
/* find the oldest queued */
if (!image || tmp_image->flip_sequence < image->flip_sequence)
image = tmp_image;
break;
default:
break;
}
}
if (!image)
return VK_SUCCESS;
int ret;
if (connector->active) {
ret = drmModePageFlip(wsi->fd, connector->crtc_id, image->fb_id,
DRM_MODE_PAGE_FLIP_EVENT, image);
if (ret == 0) {
image->state = WSI_IMAGE_FLIPPING;
return VK_SUCCESS;
}
wsi_display_debug("page flip err %d %s\n", ret, strerror(-ret));
} else {
ret = -EINVAL;
}
if (ret == -EINVAL) {
VkResult result = wsi_display_setup_connector(connector, display_mode);
if (result != VK_SUCCESS) {
image->state = WSI_IMAGE_IDLE;
return result;
}
/* XXX allow setting of position */
ret = drmModeSetCrtc(wsi->fd, connector->crtc_id,
image->fb_id, 0, 0,
&connector->id, 1,
&connector->current_drm_mode);
if (ret == 0) {
/* Disable the HW cursor as the app doesn't have a mechanism
* to control it.
* Refer to question 12 of the VK_KHR_display spec.
*/
ret = drmModeSetCursor(wsi->fd, connector->crtc_id, 0, 0, 0 );
if (ret != 0) {
wsi_display_debug("failed to hide cursor err %d %s\n", ret, strerror(-ret));
}
/* Assume that the mode set is synchronous and that any
* previous image is now idle.
*/
image->state = WSI_IMAGE_DISPLAYING;
wsi_display_idle_old_displaying(image);
connector->active = true;
return VK_SUCCESS;
}
}
if (ret != -EACCES) {
connector->active = false;
image->state = WSI_IMAGE_IDLE;
return VK_ERROR_SURFACE_LOST_KHR;
}
/* Some other VT is currently active. Sit here waiting for
* our VT to become active again by polling once a second
*/
usleep(1000 * 1000);
connector->active = false;
}
}
static VkResult
wsi_display_queue_present(struct wsi_swapchain *drv_chain,
uint32_t image_index,
const VkPresentRegionKHR *damage)
{
struct wsi_display_swapchain *chain =
(struct wsi_display_swapchain *) drv_chain;
struct wsi_display *wsi = chain->wsi;
struct wsi_display_image *image = &chain->images[image_index];
VkResult result;
/* Bail early if the swapchain is broken */
if (chain->status != VK_SUCCESS)
return chain->status;
assert(image->state == WSI_IMAGE_DRAWING);
wsi_display_debug("present %d\n", image_index);
pthread_mutex_lock(&wsi->wait_mutex);
image->flip_sequence = ++chain->flip_sequence;
image->state = WSI_IMAGE_QUEUED;
result = _wsi_display_queue_next(drv_chain);
if (result != VK_SUCCESS)
chain->status = result;
pthread_mutex_unlock(&wsi->wait_mutex);
if (result != VK_SUCCESS)
return result;
return chain->status;
}
static VkResult
wsi_display_surface_create_swapchain(
VkIcdSurfaceBase *icd_surface,
VkDevice device,
struct wsi_device *wsi_device,
const VkSwapchainCreateInfoKHR *create_info,
const VkAllocationCallbacks *allocator,
struct wsi_swapchain **swapchain_out)
{
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
assert(create_info->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
const unsigned num_images = create_info->minImageCount;
struct wsi_display_swapchain *chain =
vk_zalloc(allocator,
sizeof(*chain) + num_images * sizeof(chain->images[0]),
8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
if (chain == NULL)
return VK_ERROR_OUT_OF_HOST_MEMORY;
VkResult result = wsi_swapchain_init(wsi_device, &chain->base, device,
create_info, allocator, false);
if (result != VK_SUCCESS) {
vk_free(allocator, chain);
return result;
}
chain->base.destroy = wsi_display_swapchain_destroy;
chain->base.get_wsi_image = wsi_display_get_wsi_image;
chain->base.acquire_next_image = wsi_display_acquire_next_image;
chain->base.queue_present = wsi_display_queue_present;
chain->base.present_mode = wsi_swapchain_get_present_mode(wsi_device, create_info);
chain->base.image_count = num_images;
chain->wsi = wsi;
chain->status = VK_SUCCESS;
chain->surface = (VkIcdSurfaceDisplay *) icd_surface;
result = wsi_configure_native_image(&chain->base, create_info,
0, NULL, NULL,
NULL /* alloc_shm */,
&chain->base.image_info);
if (result != VK_SUCCESS) {
vk_free(allocator, chain);
goto fail_init_images;
}
for (uint32_t image = 0; image < chain->base.image_count; image++) {
result = wsi_display_image_init(device, &chain->base,
create_info, allocator,
&chain->images[image]);
if (result != VK_SUCCESS) {
while (image > 0) {
--image;
wsi_display_image_finish(&chain->base, allocator,
&chain->images[image]);
}
wsi_destroy_image_info(&chain->base, &chain->base.image_info);
vk_free(allocator, chain);
goto fail_init_images;
}
}
*swapchain_out = &chain->base;
return VK_SUCCESS;
fail_init_images:
return result;
}
static bool
wsi_init_pthread_cond_monotonic(pthread_cond_t *cond)
{
pthread_condattr_t condattr;
bool ret = false;
if (pthread_condattr_init(&condattr) != 0)
goto fail_attr_init;
if (pthread_condattr_setclock(&condattr, CLOCK_MONOTONIC) != 0)
goto fail_attr_set;
if (pthread_cond_init(cond, &condattr) != 0)
goto fail_cond_init;
ret = true;
fail_cond_init:
fail_attr_set:
pthread_condattr_destroy(&condattr);
fail_attr_init:
return ret;
}
/*
* Local version fo the libdrm helper. Added to avoid depending on bleeding
* edge version of the library.
*/
static int
local_drmIsMaster(int fd)
{
/* Detect master by attempting something that requires master.
*
* Authenticating magic tokens requires master and 0 is an
* internal kernel detail which we could use. Attempting this on
* a master fd would fail therefore fail with EINVAL because 0
* is invalid.
*
* A non-master fd will fail with EACCES, as the kernel checks
* for master before attempting to do anything else.
*
* Since we don't want to leak implementation details, use
* EACCES.
*/
return drmAuthMagic(fd, 0) != -EACCES;
}
#ifdef HAVE_LIBUDEV
static void *
udev_event_listener_thread(void *data)
{
struct wsi_device *wsi_device = data;
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
struct udev *u = udev_new();
if (!u)
goto fail;
struct udev_monitor *mon =
udev_monitor_new_from_netlink(u, "udev");
if (!mon)
goto fail_udev;
int ret =
udev_monitor_filter_add_match_subsystem_devtype(mon, "drm", "drm_minor");
if (ret < 0)
goto fail_udev_monitor;
ret = udev_monitor_enable_receiving(mon);
if (ret < 0)
goto fail_udev_monitor;
int udev_fd = udev_monitor_get_fd(mon);
pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
for (;;) {
nfds_t nfds = 1;
struct pollfd fds[1] = {
{
.fd = udev_fd,
.events = POLLIN,
},
};
int ret = poll(fds, nfds, -1);
if (ret > 0) {
if (fds[0].revents & POLLIN) {
struct udev_device *dev = udev_monitor_receive_device(mon);
/* Ignore event if it is not a hotplug event */
if (!atoi(udev_device_get_property_value(dev, "HOTPLUG")))
continue;
/* Note, this supports both drmSyncobjWait for fence->syncobj
* and wsi_display_wait_for_event.
*/
mtx_lock(&wsi->wait_mutex);
pthread_cond_broadcast(&wsi->hotplug_cond);
list_for_each_entry(struct wsi_display_fence, fence,
&wsi_device->hotplug_fences, link) {
if (fence->syncobj)
drmSyncobjSignal(wsi->syncobj_fd, &fence->syncobj, 1);
fence->event_received = true;
}
mtx_unlock(&wsi->wait_mutex);
udev_device_unref(dev);
}
} else if (ret < 0) {
goto fail;
}
}
udev_monitor_unref(mon);
udev_unref(u);
return 0;
fail_udev_monitor:
udev_monitor_unref(mon);
fail_udev:
udev_unref(u);
fail:
wsi_display_debug("critical hotplug thread error\n");
return 0;
}
#endif
VkResult
wsi_display_init_wsi(struct wsi_device *wsi_device,
const VkAllocationCallbacks *alloc,
int display_fd)
{
struct wsi_display *wsi = vk_zalloc(alloc, sizeof(*wsi), 8,
VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
VkResult result;
if (!wsi) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto fail;
}
wsi->fd = display_fd;
if (wsi->fd != -1 && !local_drmIsMaster(wsi->fd))
wsi->fd = -1;
wsi->syncobj_fd = wsi->fd;
wsi->alloc = alloc;
list_inithead(&wsi->connectors);
int ret = pthread_mutex_init(&wsi->wait_mutex, NULL);
if (ret) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto fail_mutex;
}
if (!wsi_init_pthread_cond_monotonic(&wsi->wait_cond)) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto fail_cond;
}
if (!wsi_init_pthread_cond_monotonic(&wsi->hotplug_cond)) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto fail_hotplug_cond;
}
wsi->base.get_support = wsi_display_surface_get_support;
wsi->base.get_capabilities2 = wsi_display_surface_get_capabilities2;
wsi->base.get_formats = wsi_display_surface_get_formats;
wsi->base.get_formats2 = wsi_display_surface_get_formats2;
wsi->base.get_present_modes = wsi_display_surface_get_present_modes;
wsi->base.get_present_rectangles = wsi_display_surface_get_present_rectangles;
wsi->base.create_swapchain = wsi_display_surface_create_swapchain;
wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY] = &wsi->base;
return VK_SUCCESS;
fail_hotplug_cond:
pthread_cond_destroy(&wsi->wait_cond);
fail_cond:
pthread_mutex_destroy(&wsi->wait_mutex);
fail_mutex:
vk_free(alloc, wsi);
fail:
return result;
}
void
wsi_display_finish_wsi(struct wsi_device *wsi_device,
const VkAllocationCallbacks *alloc)
{
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
if (wsi) {
wsi_for_each_connector(connector, wsi) {
wsi_for_each_display_mode(mode, connector) {
vk_free(wsi->alloc, mode);
}
vk_free(wsi->alloc, connector);
}
wsi_display_stop_wait_thread(wsi);
if (wsi->hotplug_thread) {
pthread_cancel(wsi->hotplug_thread);
pthread_join(wsi->hotplug_thread, NULL);
}
pthread_mutex_destroy(&wsi->wait_mutex);
pthread_cond_destroy(&wsi->wait_cond);
pthread_cond_destroy(&wsi->hotplug_cond);
vk_free(alloc, wsi);
}
}
/*
* Implement vkReleaseDisplay
*/
VKAPI_ATTR VkResult VKAPI_CALL
wsi_ReleaseDisplayEXT(VkPhysicalDevice physicalDevice,
VkDisplayKHR display)
{
VK_FROM_HANDLE(vk_physical_device, pdevice, physicalDevice);
struct wsi_device *wsi_device = pdevice->wsi_device;
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
if (wsi->fd >= 0) {
wsi_display_stop_wait_thread(wsi);
close(wsi->fd);
wsi->fd = -1;
}
#ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
wsi_display_connector_from_handle(display)->output = None;
#endif
return VK_SUCCESS;
}
#ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
static struct wsi_display_connector *
wsi_display_find_output(struct wsi_device *wsi_device,
xcb_randr_output_t output)
{
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
wsi_for_each_connector(connector, wsi) {
if (connector->output == output)
return connector;
}
return NULL;
}
/*
* Given a RandR output, find the associated kernel connector_id by
* looking at the CONNECTOR_ID property provided by the X server
*/
static uint32_t
wsi_display_output_to_connector_id(xcb_connection_t *connection,
xcb_atom_t *connector_id_atom_p,
xcb_randr_output_t output)
{
uint32_t connector_id = 0;
xcb_atom_t connector_id_atom = *connector_id_atom_p;
if (connector_id_atom == 0) {
/* Go dig out the CONNECTOR_ID property */
xcb_intern_atom_cookie_t ia_c = xcb_intern_atom(connection,
true,
12,
"CONNECTOR_ID");
xcb_intern_atom_reply_t *ia_r = xcb_intern_atom_reply(connection,
ia_c,
NULL);
if (ia_r) {
*connector_id_atom_p = connector_id_atom = ia_r->atom;
free(ia_r);
}
}
/* If there's an CONNECTOR_ID atom in the server, then there may be a
* CONNECTOR_ID property. Otherwise, there will not be and we don't even
* need to bother.
*/
if (connector_id_atom) {
xcb_randr_query_version_cookie_t qv_c =
xcb_randr_query_version(connection, 1, 6);
xcb_randr_get_output_property_cookie_t gop_c =
xcb_randr_get_output_property(connection,
output,
connector_id_atom,
0,
0,
0xffffffffUL,
0,
0);
xcb_randr_query_version_reply_t *qv_r =
xcb_randr_query_version_reply(connection, qv_c, NULL);
free(qv_r);
xcb_randr_get_output_property_reply_t *gop_r =
xcb_randr_get_output_property_reply(connection, gop_c, NULL);
if (gop_r) {
if (gop_r->num_items == 1 && gop_r->format == 32)
memcpy(&connector_id, xcb_randr_get_output_property_data(gop_r), 4);
free(gop_r);
}
}
return connector_id;
}
static bool
wsi_display_check_randr_version(xcb_connection_t *connection)
{
xcb_randr_query_version_cookie_t qv_c =
xcb_randr_query_version(connection, 1, 6);
xcb_randr_query_version_reply_t *qv_r =
xcb_randr_query_version_reply(connection, qv_c, NULL);
bool ret = false;
if (!qv_r)
return false;
/* Check for version 1.6 or newer */
ret = (qv_r->major_version > 1 ||
(qv_r->major_version == 1 && qv_r->minor_version >= 6));
free(qv_r);
return ret;
}
/*
* Given a kernel connector id, find the associated RandR output using the
* CONNECTOR_ID property
*/
static xcb_randr_output_t
wsi_display_connector_id_to_output(xcb_connection_t *connection,
uint32_t connector_id)
{
if (!wsi_display_check_randr_version(connection))
return 0;
const xcb_setup_t *setup = xcb_get_setup(connection);
xcb_atom_t connector_id_atom = 0;
xcb_randr_output_t output = 0;
/* Search all of the screens for the provided output */
xcb_screen_iterator_t iter;
for (iter = xcb_setup_roots_iterator(setup);
output == 0 && iter.rem;
xcb_screen_next(&iter))
{
xcb_randr_get_screen_resources_cookie_t gsr_c =
xcb_randr_get_screen_resources(connection, iter.data->root);
xcb_randr_get_screen_resources_reply_t *gsr_r =
xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
if (!gsr_r)
return 0;
xcb_randr_output_t *ro = xcb_randr_get_screen_resources_outputs(gsr_r);
int o;
for (o = 0; o < gsr_r->num_outputs; o++) {
if (wsi_display_output_to_connector_id(connection,
&connector_id_atom, ro[o])
== connector_id)
{
output = ro[o];
break;
}
}
free(gsr_r);
}
return output;
}
/*
* Given a RandR output, find out which screen it's associated with
*/
static xcb_window_t
wsi_display_output_to_root(xcb_connection_t *connection,
xcb_randr_output_t output)
{
if (!wsi_display_check_randr_version(connection))
return 0;
const xcb_setup_t *setup = xcb_get_setup(connection);
xcb_window_t root = 0;
/* Search all of the screens for the provided output */
for (xcb_screen_iterator_t iter = xcb_setup_roots_iterator(setup);
root == 0 && iter.rem;
xcb_screen_next(&iter))
{
xcb_randr_get_screen_resources_cookie_t gsr_c =
xcb_randr_get_screen_resources(connection, iter.data->root);
xcb_randr_get_screen_resources_reply_t *gsr_r =
xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
if (!gsr_r)
return 0;
xcb_randr_output_t *ro = xcb_randr_get_screen_resources_outputs(gsr_r);
for (int o = 0; o < gsr_r->num_outputs; o++) {
if (ro[o] == output) {
root = iter.data->root;
break;
}
}
free(gsr_r);
}
return root;
}
static bool
wsi_display_mode_matches_x(struct wsi_display_mode *wsi,
xcb_randr_mode_info_t *xcb)
{
return wsi->clock == (xcb->dot_clock + 500) / 1000 &&
wsi->hdisplay == xcb->width &&
wsi->hsync_start == xcb->hsync_start &&
wsi->hsync_end == xcb->hsync_end &&
wsi->htotal == xcb->htotal &&
wsi->hskew == xcb->hskew &&
wsi->vdisplay == xcb->height &&
wsi->vsync_start == xcb->vsync_start &&
wsi->vsync_end == xcb->vsync_end &&
wsi->vtotal == xcb->vtotal &&
wsi->vscan <= 1 &&
wsi->flags == xcb->mode_flags;
}
static struct wsi_display_mode *
wsi_display_find_x_mode(struct wsi_device *wsi_device,
struct wsi_display_connector *connector,
xcb_randr_mode_info_t *mode)
{
wsi_for_each_display_mode(display_mode, connector) {
if (wsi_display_mode_matches_x(display_mode, mode))
return display_mode;
}
return NULL;
}
static VkResult
wsi_display_register_x_mode(struct wsi_device *wsi_device,
struct wsi_display_connector *connector,
xcb_randr_mode_info_t *x_mode,
bool preferred)
{
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
struct wsi_display_mode *display_mode =
wsi_display_find_x_mode(wsi_device, connector, x_mode);
if (display_mode) {
display_mode->valid = true;
return VK_SUCCESS;
}
display_mode = vk_zalloc(wsi->alloc, sizeof (struct wsi_display_mode),
8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (!display_mode)
return VK_ERROR_OUT_OF_HOST_MEMORY;
display_mode->connector = connector;
display_mode->valid = true;
display_mode->preferred = preferred;
display_mode->clock = (x_mode->dot_clock + 500) / 1000; /* kHz */
display_mode->hdisplay = x_mode->width;
display_mode->hsync_start = x_mode->hsync_start;
display_mode->hsync_end = x_mode->hsync_end;
display_mode->htotal = x_mode->htotal;
display_mode->hskew = x_mode->hskew;
display_mode->vdisplay = x_mode->height;
display_mode->vsync_start = x_mode->vsync_start;
display_mode->vsync_end = x_mode->vsync_end;
display_mode->vtotal = x_mode->vtotal;
display_mode->vscan = 0;
display_mode->flags = x_mode->mode_flags;
list_addtail(&display_mode->list, &connector->display_modes);
return VK_SUCCESS;
}
static struct wsi_display_connector *
wsi_display_get_output(struct wsi_device *wsi_device,
xcb_connection_t *connection,
xcb_randr_output_t output)
{
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
struct wsi_display_connector *connector;
uint32_t connector_id;
xcb_window_t root = wsi_display_output_to_root(connection, output);
if (!root)
return NULL;
/* See if we already have a connector for this output */
connector = wsi_display_find_output(wsi_device, output);
if (!connector) {
xcb_atom_t connector_id_atom = 0;
/*
* Go get the kernel connector ID for this X output
*/
connector_id = wsi_display_output_to_connector_id(connection,
&connector_id_atom,
output);
/* Any X server with lease support will have this atom */
if (!connector_id) {
return NULL;
}
/* See if we already have a connector for this id */
connector = wsi_display_find_connector(wsi_device, connector_id);
if (connector == NULL) {
connector = wsi_display_alloc_connector(wsi, connector_id);
if (!connector) {
return NULL;
}
list_addtail(&connector->list, &wsi->connectors);
}
connector->output = output;
}
xcb_randr_get_screen_resources_cookie_t src =
xcb_randr_get_screen_resources(connection, root);
xcb_randr_get_output_info_cookie_t oic =
xcb_randr_get_output_info(connection, output, XCB_CURRENT_TIME);
xcb_randr_get_screen_resources_reply_t *srr =
xcb_randr_get_screen_resources_reply(connection, src, NULL);
xcb_randr_get_output_info_reply_t *oir =
xcb_randr_get_output_info_reply(connection, oic, NULL);
if (oir && srr) {
/* Get X modes and add them */
connector->connected =
oir->connection != XCB_RANDR_CONNECTION_DISCONNECTED;
wsi_display_invalidate_connector_modes(wsi_device, connector);
xcb_randr_mode_t *x_modes = xcb_randr_get_output_info_modes(oir);
for (int m = 0; m < oir->num_modes; m++) {
xcb_randr_mode_info_iterator_t i =
xcb_randr_get_screen_resources_modes_iterator(srr);
while (i.rem) {
xcb_randr_mode_info_t *mi = i.data;
if (mi->id == x_modes[m]) {
VkResult result = wsi_display_register_x_mode(
wsi_device, connector, mi, m < oir->num_preferred);
if (result != VK_SUCCESS) {
free(oir);
free(srr);
return NULL;
}
break;
}
xcb_randr_mode_info_next(&i);
}
}
}
free(oir);
free(srr);
return connector;
}
static xcb_randr_crtc_t
wsi_display_find_crtc_for_output(xcb_connection_t *connection,
xcb_window_t root,
xcb_randr_output_t output)
{
xcb_randr_get_screen_resources_cookie_t gsr_c =
xcb_randr_get_screen_resources(connection, root);
xcb_randr_get_screen_resources_reply_t *gsr_r =
xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
if (!gsr_r)
return 0;
xcb_randr_crtc_t *rc = xcb_randr_get_screen_resources_crtcs(gsr_r);
xcb_randr_crtc_t idle_crtc = 0;
xcb_randr_crtc_t active_crtc = 0;
/* Find either a crtc already connected to the desired output or idle */
for (int c = 0; active_crtc == 0 && c < gsr_r->num_crtcs; c++) {
xcb_randr_get_crtc_info_cookie_t gci_c =
xcb_randr_get_crtc_info(connection, rc[c], gsr_r->config_timestamp);
xcb_randr_get_crtc_info_reply_t *gci_r =
xcb_randr_get_crtc_info_reply(connection, gci_c, NULL);
if (gci_r) {
if (gci_r->mode) {
int num_outputs = xcb_randr_get_crtc_info_outputs_length(gci_r);
xcb_randr_output_t *outputs =
xcb_randr_get_crtc_info_outputs(gci_r);
if (num_outputs == 1 && outputs[0] == output)
active_crtc = rc[c];
} else if (idle_crtc == 0) {
int num_possible = xcb_randr_get_crtc_info_possible_length(gci_r);
xcb_randr_output_t *possible =
xcb_randr_get_crtc_info_possible(gci_r);
for (int p = 0; p < num_possible; p++)
if (possible[p] == output) {
idle_crtc = rc[c];
break;
}
}
free(gci_r);
}
}
free(gsr_r);
if (active_crtc)
return active_crtc;
return idle_crtc;
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_AcquireXlibDisplayEXT(VkPhysicalDevice physicalDevice,
Display *dpy,
VkDisplayKHR display)
{
VK_FROM_HANDLE(vk_physical_device, pdevice, physicalDevice);
struct wsi_device *wsi_device = pdevice->wsi_device;
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
xcb_connection_t *connection = XGetXCBConnection(dpy);
struct wsi_display_connector *connector =
wsi_display_connector_from_handle(display);
xcb_window_t root;
/* XXX no support for multiple leases yet */
if (wsi->fd >= 0)
return VK_ERROR_INITIALIZATION_FAILED;
if (!connector->output) {
connector->output = wsi_display_connector_id_to_output(connection,
connector->id);
/* Check and see if we found the output */
if (!connector->output)
return VK_ERROR_INITIALIZATION_FAILED;
}
root = wsi_display_output_to_root(connection, connector->output);
if (!root)
return VK_ERROR_INITIALIZATION_FAILED;
xcb_randr_crtc_t crtc = wsi_display_find_crtc_for_output(connection,
root,
connector->output);
if (!crtc)
return VK_ERROR_INITIALIZATION_FAILED;
#ifdef HAVE_DRI3_MODIFIERS
xcb_randr_lease_t lease = xcb_generate_id(connection);
xcb_randr_create_lease_cookie_t cl_c =
xcb_randr_create_lease(connection, root, lease, 1, 1,
&crtc, &connector->output);
xcb_randr_create_lease_reply_t *cl_r =
xcb_randr_create_lease_reply(connection, cl_c, NULL);
if (!cl_r)
return VK_ERROR_INITIALIZATION_FAILED;
int fd = -1;
if (cl_r->nfd > 0) {
int *rcl_f = xcb_randr_create_lease_reply_fds(connection, cl_r);
fd = rcl_f[0];
}
free (cl_r);
if (fd < 0)
return VK_ERROR_INITIALIZATION_FAILED;
wsi->fd = fd;
#endif
return VK_SUCCESS;
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_GetRandROutputDisplayEXT(VkPhysicalDevice physicalDevice,
Display *dpy,
RROutput rrOutput,
VkDisplayKHR *pDisplay)
{
VK_FROM_HANDLE(vk_physical_device, pdevice, physicalDevice);
struct wsi_device *wsi_device = pdevice->wsi_device;
xcb_connection_t *connection = XGetXCBConnection(dpy);
struct wsi_display_connector *connector =
wsi_display_get_output(wsi_device, connection,
(xcb_randr_output_t) rrOutput);
if (connector)
*pDisplay = wsi_display_connector_to_handle(connector);
else
*pDisplay = VK_NULL_HANDLE;
return VK_SUCCESS;
}
#endif
/* VK_EXT_display_control */
VKAPI_ATTR VkResult VKAPI_CALL
wsi_DisplayPowerControlEXT(VkDevice _device,
VkDisplayKHR display,
const VkDisplayPowerInfoEXT *pDisplayPowerInfo)
{
VK_FROM_HANDLE(vk_device, device, _device);
struct wsi_device *wsi_device = device->physical->wsi_device;
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
struct wsi_display_connector *connector =
wsi_display_connector_from_handle(display);
int mode;
if (wsi->fd < 0)
return VK_ERROR_INITIALIZATION_FAILED;
switch (pDisplayPowerInfo->powerState) {
case VK_DISPLAY_POWER_STATE_OFF_EXT:
mode = DRM_MODE_DPMS_OFF;
break;
case VK_DISPLAY_POWER_STATE_SUSPEND_EXT:
mode = DRM_MODE_DPMS_SUSPEND;
break;
default:
mode = DRM_MODE_DPMS_ON;
break;
}
drmModeConnectorSetProperty(wsi->fd,
connector->id,
connector->dpms_property,
mode);
return VK_SUCCESS;
}
VkResult
wsi_register_device_event(VkDevice _device,
struct wsi_device *wsi_device,
const VkDeviceEventInfoEXT *device_event_info,
const VkAllocationCallbacks *allocator,
struct vk_sync **sync_out,
int sync_fd)
{
VK_FROM_HANDLE(vk_device, device, _device);
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
VkResult ret = VK_SUCCESS;
#ifdef HAVE_LIBUDEV
/* Start listening for output change notifications. */
mtx_lock(&wsi->wait_mutex);
if (!wsi->hotplug_thread) {
if (pthread_create(&wsi->hotplug_thread, NULL, udev_event_listener_thread,
wsi_device)) {
mtx_unlock(&wsi->wait_mutex);
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
}
mtx_unlock(&wsi->wait_mutex);
#endif
struct wsi_display_fence *fence;
assert(device_event_info->deviceEvent ==
VK_DEVICE_EVENT_TYPE_DISPLAY_HOTPLUG_EXT);
fence = wsi_display_fence_alloc(wsi, sync_fd);
if (!fence)
return VK_ERROR_OUT_OF_HOST_MEMORY;
fence->device_event = true;
mtx_lock(&wsi->wait_mutex);
list_addtail(&fence->link, &wsi_device->hotplug_fences);
mtx_unlock(&wsi->wait_mutex);
if (sync_out) {
ret = wsi_display_sync_create(device, fence, sync_out);
if (ret != VK_SUCCESS)
wsi_display_fence_destroy(fence);
} else {
wsi_display_fence_destroy(fence);
}
return ret;
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_RegisterDeviceEventEXT(VkDevice _device, const VkDeviceEventInfoEXT *device_event_info,
const VkAllocationCallbacks *allocator, VkFence *_fence)
{
VK_FROM_HANDLE(vk_device, device, _device);
struct vk_fence *fence;
VkResult ret;
const VkFenceCreateInfo info = {
.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,
.flags = 0,
};
ret = vk_fence_create(device, &info, allocator, &fence);
if (ret != VK_SUCCESS)
return ret;
ret = wsi_register_device_event(_device,
device->physical->wsi_device,
device_event_info,
allocator,
&fence->temporary,
-1);
if (ret == VK_SUCCESS)
*_fence = vk_fence_to_handle(fence);
else
vk_fence_destroy(device, fence, allocator);
return ret;
}
VkResult
wsi_register_display_event(VkDevice _device,
struct wsi_device *wsi_device,
VkDisplayKHR display,
const VkDisplayEventInfoEXT *display_event_info,
const VkAllocationCallbacks *allocator,
struct vk_sync **sync_out,
int sync_fd)
{
VK_FROM_HANDLE(vk_device, device, _device);
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
struct wsi_display_fence *fence;
VkResult ret;
switch (display_event_info->displayEvent) {
case VK_DISPLAY_EVENT_TYPE_FIRST_PIXEL_OUT_EXT:
fence = wsi_display_fence_alloc(wsi, sync_fd);
if (!fence)
return VK_ERROR_OUT_OF_HOST_MEMORY;
ret = wsi_register_vblank_event(fence, wsi_device, display,
DRM_CRTC_SEQUENCE_RELATIVE, 1, NULL);
if (ret == VK_SUCCESS) {
if (sync_out) {
ret = wsi_display_sync_create(device, fence, sync_out);
if (ret != VK_SUCCESS)
wsi_display_fence_destroy(fence);
} else {
wsi_display_fence_destroy(fence);
}
} else if (fence != NULL) {
if (fence->syncobj)
drmSyncobjDestroy(wsi->syncobj_fd, fence->syncobj);
vk_free2(wsi->alloc, allocator, fence);
}
break;
default:
ret = VK_ERROR_FEATURE_NOT_PRESENT;
break;
}
return ret;
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_RegisterDisplayEventEXT(VkDevice _device, VkDisplayKHR display,
const VkDisplayEventInfoEXT *display_event_info,
const VkAllocationCallbacks *allocator, VkFence *_fence)
{
VK_FROM_HANDLE(vk_device, device, _device);
struct vk_fence *fence;
VkResult ret;
const VkFenceCreateInfo info = {
.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,
.flags = 0,
};
ret = vk_fence_create(device, &info, allocator, &fence);
if (ret != VK_SUCCESS)
return ret;
ret = wsi_register_display_event(
_device, device->physical->wsi_device,
display, display_event_info, allocator, &fence->temporary, -1);
if (ret == VK_SUCCESS)
*_fence = vk_fence_to_handle(fence);
else
vk_fence_destroy(device, fence, allocator);
return ret;
}
void
wsi_display_setup_syncobj_fd(struct wsi_device *wsi_device,
int fd)
{
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
wsi->syncobj_fd = fd;
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_GetSwapchainCounterEXT(VkDevice _device,
VkSwapchainKHR _swapchain,
VkSurfaceCounterFlagBitsEXT counter,
uint64_t *pCounterValue)
{
VK_FROM_HANDLE(vk_device, device, _device);
struct wsi_device *wsi_device = device->physical->wsi_device;
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
struct wsi_display_swapchain *swapchain =
(struct wsi_display_swapchain *) wsi_swapchain_from_handle(_swapchain);
struct wsi_display_connector *connector =
wsi_display_mode_from_handle(swapchain->surface->displayMode)->connector;
if (wsi->fd < 0)
return VK_ERROR_INITIALIZATION_FAILED;
if (!connector->active) {
*pCounterValue = 0;
return VK_SUCCESS;
}
int ret = drmCrtcGetSequence(wsi->fd, connector->crtc_id,
pCounterValue, NULL);
if (ret)
*pCounterValue = 0;
return VK_SUCCESS;
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_AcquireDrmDisplayEXT(VkPhysicalDevice physicalDevice,
int32_t drmFd,
VkDisplayKHR display)
{
VK_FROM_HANDLE(vk_physical_device, pdevice, physicalDevice);
struct wsi_device *wsi_device = pdevice->wsi_device;
if (!wsi_device_matches_drm_fd(wsi_device, drmFd))
return VK_ERROR_UNKNOWN;
struct wsi_display *wsi =
(struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
/* XXX no support for mulitple leases yet */
if (wsi->fd >= 0 || !local_drmIsMaster(drmFd))
return VK_ERROR_INITIALIZATION_FAILED;
struct wsi_display_connector *connector =
wsi_display_connector_from_handle(display);
drmModeConnectorPtr drm_connector =
drmModeGetConnectorCurrent(drmFd, connector->id);
if (!drm_connector)
return VK_ERROR_INITIALIZATION_FAILED;
drmModeFreeConnector(drm_connector);
wsi->fd = drmFd;
return VK_SUCCESS;
}
VKAPI_ATTR VkResult VKAPI_CALL
wsi_GetDrmDisplayEXT(VkPhysicalDevice physicalDevice,
int32_t drmFd,
uint32_t connectorId,
VkDisplayKHR *pDisplay)
{
VK_FROM_HANDLE(vk_physical_device, pdevice, physicalDevice);
struct wsi_device *wsi_device = pdevice->wsi_device;
if (!wsi_device_matches_drm_fd(wsi_device, drmFd))
return VK_ERROR_UNKNOWN;
struct wsi_display_connector *connector =
wsi_display_get_connector(wsi_device, drmFd, connectorId);
if (!connector) {
*pDisplay = VK_NULL_HANDLE;
return VK_ERROR_UNKNOWN;
}
*pDisplay = wsi_display_connector_to_handle(connector);
return VK_SUCCESS;
}
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