| /* |
| * Copyright © 2015 Intel Corporation |
| * |
| * 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 <X11/Xlib-xcb.h> |
| #include <X11/xshmfence.h> |
| #include <xcb/xcb.h> |
| #include <xcb/dri3.h> |
| #include <xcb/present.h> |
| |
| #include "util/macros.h" |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <errno.h> |
| #include <string.h> |
| |
| #include <poll.h> |
| #include "util/hash_table.h" |
| |
| #include "wsi_common.h" |
| #include "wsi_common_x11.h" |
| #include "wsi_common_queue.h" |
| |
| #define typed_memcpy(dest, src, count) ({ \ |
| STATIC_ASSERT(sizeof(*src) == sizeof(*dest)); \ |
| memcpy((dest), (src), (count) * sizeof(*(src))); \ |
| }) |
| |
| struct wsi_x11_connection { |
| bool has_dri3; |
| bool has_present; |
| }; |
| |
| struct wsi_x11 { |
| struct wsi_interface base; |
| |
| pthread_mutex_t mutex; |
| /* Hash table of xcb_connection -> wsi_x11_connection mappings */ |
| struct hash_table *connections; |
| }; |
| |
| static struct wsi_x11_connection * |
| wsi_x11_connection_create(const VkAllocationCallbacks *alloc, |
| xcb_connection_t *conn) |
| { |
| xcb_query_extension_cookie_t dri3_cookie, pres_cookie; |
| xcb_query_extension_reply_t *dri3_reply, *pres_reply; |
| |
| struct wsi_x11_connection *wsi_conn = |
| vk_alloc(alloc, sizeof(*wsi_conn), 8, |
| VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE); |
| if (!wsi_conn) |
| return NULL; |
| |
| dri3_cookie = xcb_query_extension(conn, 4, "DRI3"); |
| pres_cookie = xcb_query_extension(conn, 7, "PRESENT"); |
| |
| dri3_reply = xcb_query_extension_reply(conn, dri3_cookie, NULL); |
| pres_reply = xcb_query_extension_reply(conn, pres_cookie, NULL); |
| if (dri3_reply == NULL || pres_reply == NULL) { |
| free(dri3_reply); |
| free(pres_reply); |
| vk_free(alloc, wsi_conn); |
| return NULL; |
| } |
| |
| wsi_conn->has_dri3 = dri3_reply->present != 0; |
| wsi_conn->has_present = pres_reply->present != 0; |
| |
| free(dri3_reply); |
| free(pres_reply); |
| |
| return wsi_conn; |
| } |
| |
| static void |
| wsi_x11_connection_destroy(const VkAllocationCallbacks *alloc, |
| struct wsi_x11_connection *conn) |
| { |
| vk_free(alloc, conn); |
| } |
| |
| static struct wsi_x11_connection * |
| wsi_x11_get_connection(struct wsi_device *wsi_dev, |
| const VkAllocationCallbacks *alloc, |
| xcb_connection_t *conn) |
| { |
| struct wsi_x11 *wsi = |
| (struct wsi_x11 *)wsi_dev->wsi[VK_ICD_WSI_PLATFORM_XCB]; |
| |
| pthread_mutex_lock(&wsi->mutex); |
| |
| struct hash_entry *entry = _mesa_hash_table_search(wsi->connections, conn); |
| if (!entry) { |
| /* We're about to make a bunch of blocking calls. Let's drop the |
| * mutex for now so we don't block up too badly. |
| */ |
| pthread_mutex_unlock(&wsi->mutex); |
| |
| struct wsi_x11_connection *wsi_conn = |
| wsi_x11_connection_create(alloc, conn); |
| if (!wsi_conn) |
| return NULL; |
| |
| pthread_mutex_lock(&wsi->mutex); |
| |
| entry = _mesa_hash_table_search(wsi->connections, conn); |
| if (entry) { |
| /* Oops, someone raced us to it */ |
| wsi_x11_connection_destroy(alloc, wsi_conn); |
| } else { |
| entry = _mesa_hash_table_insert(wsi->connections, conn, wsi_conn); |
| } |
| } |
| |
| pthread_mutex_unlock(&wsi->mutex); |
| |
| return entry->data; |
| } |
| |
| static const VkSurfaceFormatKHR formats[] = { |
| { .format = VK_FORMAT_B8G8R8A8_SRGB, }, |
| { .format = VK_FORMAT_B8G8R8A8_UNORM, }, |
| }; |
| |
| static const VkPresentModeKHR present_modes[] = { |
| VK_PRESENT_MODE_IMMEDIATE_KHR, |
| VK_PRESENT_MODE_MAILBOX_KHR, |
| VK_PRESENT_MODE_FIFO_KHR, |
| }; |
| |
| static xcb_screen_t * |
| get_screen_for_root(xcb_connection_t *conn, xcb_window_t root) |
| { |
| xcb_screen_iterator_t screen_iter = |
| xcb_setup_roots_iterator(xcb_get_setup(conn)); |
| |
| for (; screen_iter.rem; xcb_screen_next (&screen_iter)) { |
| if (screen_iter.data->root == root) |
| return screen_iter.data; |
| } |
| |
| return NULL; |
| } |
| |
| static xcb_visualtype_t * |
| screen_get_visualtype(xcb_screen_t *screen, xcb_visualid_t visual_id, |
| unsigned *depth) |
| { |
| xcb_depth_iterator_t depth_iter = |
| xcb_screen_allowed_depths_iterator(screen); |
| |
| for (; depth_iter.rem; xcb_depth_next (&depth_iter)) { |
| xcb_visualtype_iterator_t visual_iter = |
| xcb_depth_visuals_iterator (depth_iter.data); |
| |
| for (; visual_iter.rem; xcb_visualtype_next (&visual_iter)) { |
| if (visual_iter.data->visual_id == visual_id) { |
| if (depth) |
| *depth = depth_iter.data->depth; |
| return visual_iter.data; |
| } |
| } |
| } |
| |
| return NULL; |
| } |
| |
| static xcb_visualtype_t * |
| connection_get_visualtype(xcb_connection_t *conn, xcb_visualid_t visual_id, |
| unsigned *depth) |
| { |
| xcb_screen_iterator_t screen_iter = |
| xcb_setup_roots_iterator(xcb_get_setup(conn)); |
| |
| /* For this we have to iterate over all of the screens which is rather |
| * annoying. Fortunately, there is probably only 1. |
| */ |
| for (; screen_iter.rem; xcb_screen_next (&screen_iter)) { |
| xcb_visualtype_t *visual = screen_get_visualtype(screen_iter.data, |
| visual_id, depth); |
| if (visual) |
| return visual; |
| } |
| |
| return NULL; |
| } |
| |
| static xcb_visualtype_t * |
| get_visualtype_for_window(xcb_connection_t *conn, xcb_window_t window, |
| unsigned *depth) |
| { |
| xcb_query_tree_cookie_t tree_cookie; |
| xcb_get_window_attributes_cookie_t attrib_cookie; |
| xcb_query_tree_reply_t *tree; |
| xcb_get_window_attributes_reply_t *attrib; |
| |
| tree_cookie = xcb_query_tree(conn, window); |
| attrib_cookie = xcb_get_window_attributes(conn, window); |
| |
| tree = xcb_query_tree_reply(conn, tree_cookie, NULL); |
| attrib = xcb_get_window_attributes_reply(conn, attrib_cookie, NULL); |
| if (attrib == NULL || tree == NULL) { |
| free(attrib); |
| free(tree); |
| return NULL; |
| } |
| |
| xcb_window_t root = tree->root; |
| xcb_visualid_t visual_id = attrib->visual; |
| free(attrib); |
| free(tree); |
| |
| xcb_screen_t *screen = get_screen_for_root(conn, root); |
| if (screen == NULL) |
| return NULL; |
| |
| return screen_get_visualtype(screen, visual_id, depth); |
| } |
| |
| static bool |
| visual_has_alpha(xcb_visualtype_t *visual, unsigned depth) |
| { |
| uint32_t rgb_mask = visual->red_mask | |
| visual->green_mask | |
| visual->blue_mask; |
| |
| uint32_t all_mask = 0xffffffff >> (32 - depth); |
| |
| /* Do we have bits left over after RGB? */ |
| return (all_mask & ~rgb_mask) != 0; |
| } |
| |
| VkBool32 wsi_get_physical_device_xcb_presentation_support( |
| struct wsi_device *wsi_device, |
| VkAllocationCallbacks *alloc, |
| uint32_t queueFamilyIndex, |
| xcb_connection_t* connection, |
| xcb_visualid_t visual_id) |
| { |
| struct wsi_x11_connection *wsi_conn = |
| wsi_x11_get_connection(wsi_device, alloc, connection); |
| |
| if (!wsi_conn) |
| return false; |
| |
| if (!wsi_conn->has_dri3) { |
| fprintf(stderr, "vulkan: No DRI3 support\n"); |
| return false; |
| } |
| |
| unsigned visual_depth; |
| if (!connection_get_visualtype(connection, visual_id, &visual_depth)) |
| return false; |
| |
| if (visual_depth != 24 && visual_depth != 32) |
| return false; |
| |
| return true; |
| } |
| |
| static xcb_connection_t* |
| x11_surface_get_connection(VkIcdSurfaceBase *icd_surface) |
| { |
| if (icd_surface->platform == VK_ICD_WSI_PLATFORM_XLIB) |
| return XGetXCBConnection(((VkIcdSurfaceXlib *)icd_surface)->dpy); |
| else |
| return ((VkIcdSurfaceXcb *)icd_surface)->connection; |
| } |
| |
| static xcb_window_t |
| x11_surface_get_window(VkIcdSurfaceBase *icd_surface) |
| { |
| if (icd_surface->platform == VK_ICD_WSI_PLATFORM_XLIB) |
| return ((VkIcdSurfaceXlib *)icd_surface)->window; |
| else |
| return ((VkIcdSurfaceXcb *)icd_surface)->window; |
| } |
| |
| static VkResult |
| x11_surface_get_support(VkIcdSurfaceBase *icd_surface, |
| struct wsi_device *wsi_device, |
| const VkAllocationCallbacks *alloc, |
| uint32_t queueFamilyIndex, |
| VkBool32* pSupported) |
| { |
| xcb_connection_t *conn = x11_surface_get_connection(icd_surface); |
| xcb_window_t window = x11_surface_get_window(icd_surface); |
| |
| struct wsi_x11_connection *wsi_conn = |
| wsi_x11_get_connection(wsi_device, alloc, conn); |
| if (!wsi_conn) |
| return VK_ERROR_OUT_OF_HOST_MEMORY; |
| |
| if (!wsi_conn->has_dri3) { |
| fprintf(stderr, "vulkan: No DRI3 support\n"); |
| *pSupported = false; |
| return VK_SUCCESS; |
| } |
| |
| unsigned visual_depth; |
| if (!get_visualtype_for_window(conn, window, &visual_depth)) { |
| *pSupported = false; |
| return VK_SUCCESS; |
| } |
| |
| if (visual_depth != 24 && visual_depth != 32) { |
| *pSupported = false; |
| return VK_SUCCESS; |
| } |
| |
| *pSupported = true; |
| return VK_SUCCESS; |
| } |
| |
| static VkResult |
| x11_surface_get_capabilities(VkIcdSurfaceBase *icd_surface, |
| VkSurfaceCapabilitiesKHR *caps) |
| { |
| xcb_connection_t *conn = x11_surface_get_connection(icd_surface); |
| xcb_window_t window = x11_surface_get_window(icd_surface); |
| xcb_get_geometry_cookie_t geom_cookie; |
| xcb_generic_error_t *err; |
| xcb_get_geometry_reply_t *geom; |
| unsigned visual_depth; |
| |
| geom_cookie = xcb_get_geometry(conn, window); |
| |
| /* This does a round-trip. This is why we do get_geometry first and |
| * wait to read the reply until after we have a visual. |
| */ |
| xcb_visualtype_t *visual = |
| get_visualtype_for_window(conn, window, &visual_depth); |
| |
| if (!visual) |
| return VK_ERROR_SURFACE_LOST_KHR; |
| |
| geom = xcb_get_geometry_reply(conn, geom_cookie, &err); |
| if (geom) { |
| VkExtent2D extent = { geom->width, geom->height }; |
| caps->currentExtent = extent; |
| caps->minImageExtent = extent; |
| caps->maxImageExtent = extent; |
| } else { |
| /* This can happen if the client didn't wait for the configure event |
| * to come back from the compositor. In that case, we don't know the |
| * size of the window so we just return valid "I don't know" stuff. |
| */ |
| caps->currentExtent = (VkExtent2D) { -1, -1 }; |
| caps->minImageExtent = (VkExtent2D) { 1, 1 }; |
| caps->maxImageExtent = (VkExtent2D) { INT16_MAX, INT16_MAX }; |
| } |
| free(err); |
| free(geom); |
| |
| if (visual_has_alpha(visual, visual_depth)) { |
| caps->supportedCompositeAlpha = VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR | |
| VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR; |
| } else { |
| caps->supportedCompositeAlpha = VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR | |
| VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR; |
| } |
| |
| /* For true mailbox mode, we need at least 4 images: |
| * 1) One to scan out from |
| * 2) One to have queued for scan-out |
| * 3) One to be currently held by the X server |
| * 4) One to render to |
| */ |
| caps->minImageCount = 2; |
| /* There is no real maximum */ |
| 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_COLOR_ATTACHMENT_BIT; |
| |
| return VK_SUCCESS; |
| } |
| |
| static VkResult |
| x11_surface_get_formats(VkIcdSurfaceBase *surface, |
| struct wsi_device *wsi_device, |
| uint32_t *pSurfaceFormatCount, |
| VkSurfaceFormatKHR *pSurfaceFormats) |
| { |
| if (pSurfaceFormats == NULL) { |
| *pSurfaceFormatCount = ARRAY_SIZE(formats); |
| return VK_SUCCESS; |
| } |
| |
| *pSurfaceFormatCount = MIN2(*pSurfaceFormatCount, ARRAY_SIZE(formats)); |
| typed_memcpy(pSurfaceFormats, formats, *pSurfaceFormatCount); |
| |
| return *pSurfaceFormatCount < ARRAY_SIZE(formats) ? |
| VK_INCOMPLETE : VK_SUCCESS; |
| } |
| |
| static VkResult |
| x11_surface_get_present_modes(VkIcdSurfaceBase *surface, |
| uint32_t *pPresentModeCount, |
| VkPresentModeKHR *pPresentModes) |
| { |
| if (pPresentModes == NULL) { |
| *pPresentModeCount = ARRAY_SIZE(present_modes); |
| return VK_SUCCESS; |
| } |
| |
| *pPresentModeCount = MIN2(*pPresentModeCount, ARRAY_SIZE(present_modes)); |
| typed_memcpy(pPresentModes, present_modes, *pPresentModeCount); |
| |
| return *pPresentModeCount < ARRAY_SIZE(present_modes) ? |
| VK_INCOMPLETE : VK_SUCCESS; |
| } |
| |
| VkResult wsi_create_xcb_surface(const VkAllocationCallbacks *pAllocator, |
| const VkXcbSurfaceCreateInfoKHR *pCreateInfo, |
| VkSurfaceKHR *pSurface) |
| { |
| VkIcdSurfaceXcb *surface; |
| |
| surface = vk_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_XCB; |
| surface->connection = pCreateInfo->connection; |
| surface->window = pCreateInfo->window; |
| |
| *pSurface = VkIcdSurfaceBase_to_handle(&surface->base); |
| return VK_SUCCESS; |
| } |
| |
| VkResult wsi_create_xlib_surface(const VkAllocationCallbacks *pAllocator, |
| const VkXlibSurfaceCreateInfoKHR *pCreateInfo, |
| VkSurfaceKHR *pSurface) |
| { |
| VkIcdSurfaceXlib *surface; |
| |
| surface = vk_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_XLIB; |
| surface->dpy = pCreateInfo->dpy; |
| surface->window = pCreateInfo->window; |
| |
| *pSurface = VkIcdSurfaceBase_to_handle(&surface->base); |
| return VK_SUCCESS; |
| } |
| |
| struct x11_image { |
| VkImage image; |
| VkDeviceMemory memory; |
| xcb_pixmap_t pixmap; |
| bool busy; |
| struct xshmfence * shm_fence; |
| uint32_t sync_fence; |
| }; |
| |
| struct x11_swapchain { |
| struct wsi_swapchain base; |
| |
| xcb_connection_t * conn; |
| xcb_window_t window; |
| xcb_gc_t gc; |
| uint32_t depth; |
| VkExtent2D extent; |
| uint32_t image_count; |
| |
| xcb_present_event_t event_id; |
| xcb_special_event_t * special_event; |
| uint64_t send_sbc; |
| uint64_t last_present_msc; |
| uint32_t stamp; |
| |
| bool threaded; |
| VkResult status; |
| struct wsi_queue present_queue; |
| struct wsi_queue acquire_queue; |
| pthread_t queue_manager; |
| |
| struct x11_image images[0]; |
| }; |
| |
| static VkResult |
| x11_get_images(struct wsi_swapchain *anv_chain, |
| uint32_t* pCount, VkImage *pSwapchainImages) |
| { |
| struct x11_swapchain *chain = (struct x11_swapchain *)anv_chain; |
| uint32_t ret_count; |
| VkResult result; |
| |
| if (pSwapchainImages == NULL) { |
| *pCount = chain->image_count; |
| return VK_SUCCESS; |
| } |
| |
| result = VK_SUCCESS; |
| ret_count = chain->image_count; |
| if (chain->image_count > *pCount) { |
| ret_count = *pCount; |
| result = VK_INCOMPLETE; |
| } |
| |
| for (uint32_t i = 0; i < ret_count; i++) |
| pSwapchainImages[i] = chain->images[i].image; |
| |
| return result; |
| } |
| |
| static VkResult |
| x11_handle_dri3_present_event(struct x11_swapchain *chain, |
| xcb_present_generic_event_t *event) |
| { |
| switch (event->evtype) { |
| case XCB_PRESENT_CONFIGURE_NOTIFY: { |
| xcb_present_configure_notify_event_t *config = (void *) event; |
| |
| if (config->width != chain->extent.width || |
| config->height != chain->extent.height) |
| return VK_ERROR_OUT_OF_DATE_KHR; |
| |
| break; |
| } |
| |
| case XCB_PRESENT_EVENT_IDLE_NOTIFY: { |
| xcb_present_idle_notify_event_t *idle = (void *) event; |
| |
| for (unsigned i = 0; i < chain->image_count; i++) { |
| if (chain->images[i].pixmap == idle->pixmap) { |
| chain->images[i].busy = false; |
| if (chain->threaded) |
| wsi_queue_push(&chain->acquire_queue, i); |
| break; |
| } |
| } |
| |
| break; |
| } |
| |
| case XCB_PRESENT_EVENT_COMPLETE_NOTIFY: { |
| xcb_present_complete_notify_event_t *complete = (void *) event; |
| if (complete->kind == XCB_PRESENT_COMPLETE_KIND_PIXMAP) |
| chain->last_present_msc = complete->msc; |
| break; |
| } |
| |
| default: |
| break; |
| } |
| |
| return VK_SUCCESS; |
| } |
| |
| |
| static uint64_t wsi_get_current_time(void) |
| { |
| uint64_t current_time; |
| struct timespec tv; |
| |
| clock_gettime(CLOCK_MONOTONIC, &tv); |
| current_time = tv.tv_nsec + tv.tv_sec*1000000000ull; |
| return current_time; |
| } |
| |
| static uint64_t wsi_get_absolute_timeout(uint64_t timeout) |
| { |
| uint64_t current_time = wsi_get_current_time(); |
| |
| timeout = MIN2(UINT64_MAX - current_time, timeout); |
| |
| return current_time + timeout; |
| } |
| |
| static VkResult |
| x11_acquire_next_image_poll_x11(struct x11_swapchain *chain, |
| uint32_t *image_index, uint64_t timeout) |
| { |
| xcb_generic_event_t *event; |
| struct pollfd pfds; |
| uint64_t atimeout; |
| while (1) { |
| for (uint32_t i = 0; i < chain->image_count; i++) { |
| if (!chain->images[i].busy) { |
| /* We found a non-busy image */ |
| xshmfence_await(chain->images[i].shm_fence); |
| *image_index = i; |
| chain->images[i].busy = true; |
| return VK_SUCCESS; |
| } |
| } |
| |
| xcb_flush(chain->conn); |
| |
| if (timeout == UINT64_MAX) { |
| event = xcb_wait_for_special_event(chain->conn, chain->special_event); |
| if (!event) |
| return VK_ERROR_OUT_OF_DATE_KHR; |
| } else { |
| event = xcb_poll_for_special_event(chain->conn, chain->special_event); |
| if (!event) { |
| int ret; |
| if (timeout == 0) |
| return VK_NOT_READY; |
| |
| atimeout = wsi_get_absolute_timeout(timeout); |
| |
| pfds.fd = xcb_get_file_descriptor(chain->conn); |
| pfds.events = POLLIN; |
| ret = poll(&pfds, 1, timeout / 1000 / 1000); |
| if (ret == 0) |
| return VK_TIMEOUT; |
| if (ret == -1) |
| return VK_ERROR_OUT_OF_DATE_KHR; |
| |
| /* If a non-special event happens, the fd will still |
| * poll. So recalculate the timeout now just in case. |
| */ |
| uint64_t current_time = wsi_get_current_time(); |
| if (atimeout > current_time) |
| timeout = atimeout - current_time; |
| else |
| timeout = 0; |
| continue; |
| } |
| } |
| |
| VkResult result = x11_handle_dri3_present_event(chain, (void *)event); |
| free(event); |
| if (result != VK_SUCCESS) |
| return result; |
| } |
| } |
| |
| static VkResult |
| x11_acquire_next_image_from_queue(struct x11_swapchain *chain, |
| uint32_t *image_index_out, uint64_t timeout) |
| { |
| assert(chain->threaded); |
| |
| uint32_t image_index; |
| VkResult result = wsi_queue_pull(&chain->acquire_queue, |
| &image_index, timeout); |
| if (result != VK_SUCCESS) { |
| return result; |
| } else if (chain->status != VK_SUCCESS) { |
| return chain->status; |
| } |
| |
| assert(image_index < chain->image_count); |
| xshmfence_await(chain->images[image_index].shm_fence); |
| |
| *image_index_out = image_index; |
| |
| return VK_SUCCESS; |
| } |
| |
| static VkResult |
| x11_present_to_x11(struct x11_swapchain *chain, uint32_t image_index, |
| uint32_t target_msc) |
| { |
| struct x11_image *image = &chain->images[image_index]; |
| |
| assert(image_index < chain->image_count); |
| |
| uint32_t options = XCB_PRESENT_OPTION_NONE; |
| |
| int64_t divisor = 0; |
| int64_t remainder = 0; |
| |
| if (chain->base.present_mode == VK_PRESENT_MODE_IMMEDIATE_KHR) |
| options |= XCB_PRESENT_OPTION_ASYNC; |
| |
| xshmfence_reset(image->shm_fence); |
| |
| ++chain->send_sbc; |
| xcb_void_cookie_t cookie = |
| xcb_present_pixmap(chain->conn, |
| chain->window, |
| image->pixmap, |
| (uint32_t) chain->send_sbc, |
| 0, /* valid */ |
| 0, /* update */ |
| 0, /* x_off */ |
| 0, /* y_off */ |
| XCB_NONE, /* target_crtc */ |
| XCB_NONE, |
| image->sync_fence, |
| options, |
| target_msc, |
| divisor, |
| remainder, 0, NULL); |
| xcb_discard_reply(chain->conn, cookie.sequence); |
| image->busy = true; |
| |
| xcb_flush(chain->conn); |
| |
| return VK_SUCCESS; |
| } |
| |
| static VkResult |
| x11_acquire_next_image(struct wsi_swapchain *anv_chain, |
| uint64_t timeout, |
| VkSemaphore semaphore, |
| uint32_t *image_index) |
| { |
| struct x11_swapchain *chain = (struct x11_swapchain *)anv_chain; |
| |
| if (chain->threaded) { |
| return x11_acquire_next_image_from_queue(chain, image_index, timeout); |
| } else { |
| return x11_acquire_next_image_poll_x11(chain, image_index, timeout); |
| } |
| } |
| |
| static VkResult |
| x11_queue_present(struct wsi_swapchain *anv_chain, |
| uint32_t image_index) |
| { |
| struct x11_swapchain *chain = (struct x11_swapchain *)anv_chain; |
| |
| if (chain->threaded) { |
| wsi_queue_push(&chain->present_queue, image_index); |
| return chain->status; |
| } else { |
| return x11_present_to_x11(chain, image_index, 0); |
| } |
| } |
| |
| static void * |
| x11_manage_fifo_queues(void *state) |
| { |
| struct x11_swapchain *chain = state; |
| VkResult result; |
| |
| assert(chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR); |
| |
| while (chain->status == VK_SUCCESS) { |
| /* It should be safe to unconditionally block here. Later in the loop |
| * we blocks until the previous present has landed on-screen. At that |
| * point, we should have received IDLE_NOTIFY on all images presented |
| * before that point so the client should be able to acquire any image |
| * other than the currently presented one. |
| */ |
| uint32_t image_index; |
| result = wsi_queue_pull(&chain->present_queue, &image_index, INT64_MAX); |
| if (result != VK_SUCCESS) { |
| goto fail; |
| } else if (chain->status != VK_SUCCESS) { |
| return NULL; |
| } |
| |
| uint64_t target_msc = chain->last_present_msc + 1; |
| result = x11_present_to_x11(chain, image_index, target_msc); |
| if (result != VK_SUCCESS) |
| goto fail; |
| |
| while (chain->last_present_msc < target_msc) { |
| xcb_generic_event_t *event = |
| xcb_wait_for_special_event(chain->conn, chain->special_event); |
| if (!event) |
| goto fail; |
| |
| result = x11_handle_dri3_present_event(chain, (void *)event); |
| if (result != VK_SUCCESS) |
| goto fail; |
| } |
| } |
| |
| fail: |
| chain->status = result; |
| wsi_queue_push(&chain->acquire_queue, UINT32_MAX); |
| |
| return NULL; |
| } |
| |
| static VkResult |
| x11_image_init(VkDevice device_h, struct x11_swapchain *chain, |
| const VkSwapchainCreateInfoKHR *pCreateInfo, |
| const VkAllocationCallbacks* pAllocator, |
| struct x11_image *image) |
| { |
| xcb_void_cookie_t cookie; |
| VkResult result; |
| uint32_t row_pitch; |
| uint32_t offset; |
| uint32_t bpp = 32; |
| int fd; |
| uint32_t size; |
| |
| result = chain->base.image_fns->create_wsi_image(device_h, |
| pCreateInfo, |
| pAllocator, |
| &image->image, |
| &image->memory, |
| &size, |
| &offset, |
| &row_pitch, |
| &fd); |
| if (result != VK_SUCCESS) |
| return result; |
| |
| image->pixmap = xcb_generate_id(chain->conn); |
| |
| cookie = |
| xcb_dri3_pixmap_from_buffer_checked(chain->conn, |
| image->pixmap, |
| chain->window, |
| size, |
| pCreateInfo->imageExtent.width, |
| pCreateInfo->imageExtent.height, |
| row_pitch, |
| chain->depth, bpp, fd); |
| xcb_discard_reply(chain->conn, cookie.sequence); |
| |
| int fence_fd = xshmfence_alloc_shm(); |
| if (fence_fd < 0) |
| goto fail_pixmap; |
| |
| image->shm_fence = xshmfence_map_shm(fence_fd); |
| if (image->shm_fence == NULL) |
| goto fail_shmfence_alloc; |
| |
| image->sync_fence = xcb_generate_id(chain->conn); |
| xcb_dri3_fence_from_fd(chain->conn, |
| image->pixmap, |
| image->sync_fence, |
| false, |
| fence_fd); |
| |
| image->busy = false; |
| xshmfence_trigger(image->shm_fence); |
| |
| return VK_SUCCESS; |
| |
| fail_shmfence_alloc: |
| close(fence_fd); |
| |
| fail_pixmap: |
| cookie = xcb_free_pixmap(chain->conn, image->pixmap); |
| xcb_discard_reply(chain->conn, cookie.sequence); |
| |
| chain->base.image_fns->free_wsi_image(device_h, pAllocator, |
| image->image, image->memory); |
| |
| return result; |
| } |
| |
| static void |
| x11_image_finish(struct x11_swapchain *chain, |
| const VkAllocationCallbacks* pAllocator, |
| struct x11_image *image) |
| { |
| xcb_void_cookie_t cookie; |
| |
| cookie = xcb_sync_destroy_fence(chain->conn, image->sync_fence); |
| xcb_discard_reply(chain->conn, cookie.sequence); |
| xshmfence_unmap_shm(image->shm_fence); |
| |
| cookie = xcb_free_pixmap(chain->conn, image->pixmap); |
| xcb_discard_reply(chain->conn, cookie.sequence); |
| |
| chain->base.image_fns->free_wsi_image(chain->base.device, pAllocator, |
| image->image, image->memory); |
| } |
| |
| static VkResult |
| x11_swapchain_destroy(struct wsi_swapchain *anv_chain, |
| const VkAllocationCallbacks *pAllocator) |
| { |
| struct x11_swapchain *chain = (struct x11_swapchain *)anv_chain; |
| xcb_void_cookie_t cookie; |
| |
| for (uint32_t i = 0; i < chain->image_count; i++) |
| x11_image_finish(chain, pAllocator, &chain->images[i]); |
| |
| if (chain->threaded) { |
| chain->status = VK_ERROR_OUT_OF_DATE_KHR; |
| /* Push a UINT32_MAX to wake up the manager */ |
| wsi_queue_push(&chain->present_queue, UINT32_MAX); |
| pthread_join(chain->queue_manager, NULL); |
| wsi_queue_destroy(&chain->acquire_queue); |
| wsi_queue_destroy(&chain->present_queue); |
| } |
| |
| xcb_unregister_for_special_event(chain->conn, chain->special_event); |
| cookie = xcb_present_select_input_checked(chain->conn, chain->event_id, |
| chain->window, |
| XCB_PRESENT_EVENT_MASK_NO_EVENT); |
| xcb_discard_reply(chain->conn, cookie.sequence); |
| |
| vk_free(pAllocator, chain); |
| |
| return VK_SUCCESS; |
| } |
| |
| static VkResult |
| x11_surface_create_swapchain(VkIcdSurfaceBase *icd_surface, |
| VkDevice device, |
| struct wsi_device *wsi_device, |
| const VkSwapchainCreateInfoKHR *pCreateInfo, |
| const VkAllocationCallbacks* pAllocator, |
| const struct wsi_image_fns *image_fns, |
| struct wsi_swapchain **swapchain_out) |
| { |
| struct x11_swapchain *chain; |
| xcb_void_cookie_t cookie; |
| VkResult result; |
| |
| assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR); |
| |
| const unsigned num_images = pCreateInfo->minImageCount; |
| |
| size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]); |
| chain = vk_alloc(pAllocator, size, 8, |
| VK_SYSTEM_ALLOCATION_SCOPE_OBJECT); |
| if (chain == NULL) |
| return VK_ERROR_OUT_OF_HOST_MEMORY; |
| |
| xcb_connection_t *conn = x11_surface_get_connection(icd_surface); |
| xcb_window_t window = x11_surface_get_window(icd_surface); |
| xcb_get_geometry_reply_t *geometry = |
| xcb_get_geometry_reply(conn, xcb_get_geometry(conn, window), NULL); |
| |
| if (geometry == NULL) |
| return VK_ERROR_SURFACE_LOST_KHR; |
| |
| chain->base.device = device; |
| chain->base.destroy = x11_swapchain_destroy; |
| chain->base.get_images = x11_get_images; |
| chain->base.acquire_next_image = x11_acquire_next_image; |
| chain->base.queue_present = x11_queue_present; |
| chain->base.image_fns = image_fns; |
| chain->base.present_mode = pCreateInfo->presentMode; |
| chain->conn = conn; |
| chain->window = window; |
| chain->depth = geometry->depth; |
| chain->extent = pCreateInfo->imageExtent; |
| chain->image_count = num_images; |
| chain->send_sbc = 0; |
| chain->last_present_msc = 0; |
| chain->threaded = false; |
| chain->status = VK_SUCCESS; |
| |
| free(geometry); |
| |
| chain->event_id = xcb_generate_id(chain->conn); |
| xcb_present_select_input(chain->conn, chain->event_id, chain->window, |
| XCB_PRESENT_EVENT_MASK_CONFIGURE_NOTIFY | |
| XCB_PRESENT_EVENT_MASK_COMPLETE_NOTIFY | |
| XCB_PRESENT_EVENT_MASK_IDLE_NOTIFY); |
| |
| /* Create an XCB event queue to hold present events outside of the usual |
| * application event queue |
| */ |
| chain->special_event = |
| xcb_register_for_special_xge(chain->conn, &xcb_present_id, |
| chain->event_id, NULL); |
| |
| chain->gc = xcb_generate_id(chain->conn); |
| if (!chain->gc) { |
| /* FINISHME: Choose a better error. */ |
| result = VK_ERROR_OUT_OF_HOST_MEMORY; |
| goto fail_register; |
| } |
| |
| cookie = xcb_create_gc(chain->conn, |
| chain->gc, |
| chain->window, |
| XCB_GC_GRAPHICS_EXPOSURES, |
| (uint32_t []) { 0 }); |
| xcb_discard_reply(chain->conn, cookie.sequence); |
| |
| uint32_t image = 0; |
| for (; image < chain->image_count; image++) { |
| result = x11_image_init(device, chain, pCreateInfo, pAllocator, |
| &chain->images[image]); |
| if (result != VK_SUCCESS) |
| goto fail_init_images; |
| } |
| |
| if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) { |
| chain->threaded = true; |
| |
| /* Initialize our queues. We make them image_count + 1 because we will |
| * occasionally use UINT32_MAX to signal the other thread that an error |
| * has occurred and we don't want an overflow. |
| */ |
| int ret; |
| ret = wsi_queue_init(&chain->acquire_queue, chain->image_count + 1); |
| if (ret) { |
| goto fail_init_images; |
| } |
| |
| ret = wsi_queue_init(&chain->present_queue, chain->image_count + 1); |
| if (ret) { |
| wsi_queue_destroy(&chain->acquire_queue); |
| goto fail_init_images; |
| } |
| |
| for (unsigned i = 0; i < chain->image_count; i++) |
| wsi_queue_push(&chain->acquire_queue, i); |
| |
| ret = pthread_create(&chain->queue_manager, NULL, |
| x11_manage_fifo_queues, chain); |
| if (ret) { |
| wsi_queue_destroy(&chain->present_queue); |
| wsi_queue_destroy(&chain->acquire_queue); |
| goto fail_init_images; |
| } |
| } |
| |
| *swapchain_out = &chain->base; |
| |
| return VK_SUCCESS; |
| |
| fail_init_images: |
| for (uint32_t j = 0; j < image; j++) |
| x11_image_finish(chain, pAllocator, &chain->images[j]); |
| |
| fail_register: |
| xcb_unregister_for_special_event(chain->conn, chain->special_event); |
| |
| vk_free(pAllocator, chain); |
| |
| return result; |
| } |
| |
| VkResult |
| wsi_x11_init_wsi(struct wsi_device *wsi_device, |
| const VkAllocationCallbacks *alloc) |
| { |
| struct wsi_x11 *wsi; |
| VkResult result; |
| |
| wsi = vk_alloc(alloc, sizeof(*wsi), 8, |
| VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE); |
| if (!wsi) { |
| result = VK_ERROR_OUT_OF_HOST_MEMORY; |
| goto fail; |
| } |
| |
| int ret = pthread_mutex_init(&wsi->mutex, NULL); |
| if (ret != 0) { |
| if (ret == ENOMEM) { |
| result = VK_ERROR_OUT_OF_HOST_MEMORY; |
| } else { |
| /* FINISHME: Choose a better error. */ |
| result = VK_ERROR_OUT_OF_HOST_MEMORY; |
| } |
| |
| goto fail_alloc; |
| } |
| |
| wsi->connections = _mesa_hash_table_create(NULL, _mesa_hash_pointer, |
| _mesa_key_pointer_equal); |
| if (!wsi->connections) { |
| result = VK_ERROR_OUT_OF_HOST_MEMORY; |
| goto fail_mutex; |
| } |
| |
| wsi->base.get_support = x11_surface_get_support; |
| wsi->base.get_capabilities = x11_surface_get_capabilities; |
| wsi->base.get_formats = x11_surface_get_formats; |
| wsi->base.get_present_modes = x11_surface_get_present_modes; |
| wsi->base.create_swapchain = x11_surface_create_swapchain; |
| |
| wsi_device->wsi[VK_ICD_WSI_PLATFORM_XCB] = &wsi->base; |
| wsi_device->wsi[VK_ICD_WSI_PLATFORM_XLIB] = &wsi->base; |
| |
| return VK_SUCCESS; |
| |
| fail_mutex: |
| pthread_mutex_destroy(&wsi->mutex); |
| fail_alloc: |
| vk_free(alloc, wsi); |
| fail: |
| wsi_device->wsi[VK_ICD_WSI_PLATFORM_XCB] = NULL; |
| wsi_device->wsi[VK_ICD_WSI_PLATFORM_XLIB] = NULL; |
| |
| return result; |
| } |
| |
| void |
| wsi_x11_finish_wsi(struct wsi_device *wsi_device, |
| const VkAllocationCallbacks *alloc) |
| { |
| struct wsi_x11 *wsi = |
| (struct wsi_x11 *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_XCB]; |
| |
| if (wsi) { |
| struct hash_entry *entry; |
| hash_table_foreach(wsi->connections, entry) |
| wsi_x11_connection_destroy(alloc, entry->data); |
| |
| _mesa_hash_table_destroy(wsi->connections, NULL); |
| |
| pthread_mutex_destroy(&wsi->mutex); |
| |
| vk_free(alloc, wsi); |
| } |
| } |