* IN THE SOFTWARE.
*/
+#include <X11/xshmfence.h>
#include <xcb/xcb.h>
#include <xcb/dri3.h>
#include <xcb/present.h>
struct anv_image * image;
struct anv_device_memory * memory;
xcb_pixmap_t pixmap;
- xcb_get_geometry_cookie_t geom_cookie;
bool busy;
+ struct xshmfence * shm_fence;
+ uint32_t sync_fence;
};
struct x11_swapchain {
xcb_gc_t gc;
VkExtent2D extent;
uint32_t image_count;
- uint32_t next_image;
+
+ xcb_present_event_t event_id;
+ xcb_special_event_t * special_event;
+ uint64_t send_sbc;
+ uint32_t stamp;
+
struct x11_image images[0];
};
return VK_SUCCESS;
}
+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(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;
+ break;
+ }
+ }
+
+ break;
+ }
+
+ case XCB_PRESENT_COMPLETE_NOTIFY:
+ default:
+ break;
+ }
+
+ return VK_SUCCESS;
+}
+
static VkResult
x11_acquire_next_image(struct anv_swapchain *anv_chain,
uint64_t timeout,
uint32_t *image_index)
{
struct x11_swapchain *chain = (struct x11_swapchain *)anv_chain;
- struct x11_image *image = &chain->images[chain->next_image];
-
- if (image->busy) {
- xcb_generic_error_t *err;
- xcb_get_geometry_reply_t *geom =
- xcb_get_geometry_reply(chain->conn, image->geom_cookie, &err);
- if (!geom) {
- free(err);
- return vk_error(VK_ERROR_OUT_OF_DATE_KHR);
+
+ 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;
+ return VK_SUCCESS;
+ }
}
- if (geom->width != chain->extent.width ||
- geom->height != chain->extent.height) {
- free(geom);
+ xcb_flush(chain->conn);
+ xcb_generic_event_t *event =
+ xcb_wait_for_special_event(chain->conn, chain->special_event);
+ if (!event)
return vk_error(VK_ERROR_OUT_OF_DATE_KHR);
- }
- free(geom);
- image->busy = false;
+ VkResult result = x11_handle_dri3_present_event(chain, (void *)event);
+ free(event);
+ if (result != VK_SUCCESS)
+ return result;
}
-
- *image_index = chain->next_image;
- chain->next_image = (chain->next_image + 1) % chain->image_count;
- return VK_SUCCESS;
}
static VkResult
assert(image_index < chain->image_count);
- xcb_void_cookie_t cookie;
+ uint32_t options = XCB_PRESENT_OPTION_NONE;
- cookie = xcb_copy_area(chain->conn,
- image->pixmap,
- chain->window,
- chain->gc,
- 0, 0,
- 0, 0,
- chain->extent.width,
- chain->extent.height);
- xcb_discard_reply(chain->conn, cookie.sequence);
+ int64_t target_msc = 0;
+ int64_t divisor = 0;
+ int64_t remainder = 0;
+
+ options |= XCB_PRESENT_OPTION_ASYNC;
- image->geom_cookie = xcb_get_geometry(chain->conn, chain->window);
+ 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);
const VkAllocationCallbacks* pAllocator,
struct x11_image *image)
{
+ xcb_void_cookie_t cookie;
VkResult result;
VkImage image_h;
uint32_t depth = 24;
image->pixmap = xcb_generate_id(chain->conn);
- xcb_void_cookie_t cookie =
+ cookie =
xcb_dri3_pixmap_from_buffer_checked(chain->conn,
image->pixmap,
chain->window,
pCreateInfo->imageExtent.height,
surface->isl.row_pitch,
depth, bpp, fd);
+ xcb_discard_reply(chain->conn, cookie.sequence);
- image->busy = false;
+ int fence_fd = xshmfence_alloc_shm();
+ if (fence_fd < 0)
+ goto fail_pixmap;
- xcb_discard_reply(chain->conn, cookie.sequence);
+ 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);
+
fail_alloc_memory:
anv_FreeMemory(anv_device_to_handle(chain->base.device),
anv_device_memory_to_handle(image->memory), pAllocator);
const VkAllocationCallbacks* pAllocator,
struct x11_image *image)
{
- if (image->busy)
- xcb_discard_reply(chain->conn, image->geom_cookie.sequence);
+ 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);
- xcb_void_cookie_t cookie = xcb_free_pixmap(chain->conn, image->pixmap);
+ cookie = xcb_free_pixmap(chain->conn, image->pixmap);
xcb_discard_reply(chain->conn, cookie.sequence);
anv_DestroyImage(anv_device_to_handle(chain->base.device),
for (uint32_t i = 0; i < chain->image_count; i++)
x11_image_finish(chain, pAllocator, &chain->images[i]);
+ xcb_unregister_for_special_event(chain->conn, chain->special_event);
+
anv_free2(&chain->base.device->alloc, pAllocator, chain);
return VK_SUCCESS;
xcb_void_cookie_t cookie;
VkResult result;
+ assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
+
int num_images = pCreateInfo->minImageCount;
- assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_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 Wayland compositor
+ * 4) One to render to
+ */
+ if (pCreateInfo->presentMode == VK_PRESENT_MODE_MAILBOX_KHR)
+ num_images = MAX2(num_images, 4);
size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]);
chain = anv_alloc2(&device->alloc, pAllocator, size, 8,
chain->window = surface->window;
chain->extent = pCreateInfo->imageExtent;
chain->image_count = num_images;
- chain->next_image = 0;
+
+ 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(VK_ERROR_OUT_OF_HOST_MEMORY);
- goto fail_alloc;
+ goto fail_register;
}
cookie = xcb_create_gc(chain->conn,
for (uint32_t j = 0; j < image; j++)
x11_image_finish(chain, pAllocator, &chain->images[j]);
-fail_alloc:
+fail_register:
+ xcb_unregister_for_special_event(chain->conn, chain->special_event);
+
anv_free2(&device->alloc, pAllocator, chain);
return result;
projects / mesa.git / commitdiff