[Mesa-dev] [PATCH 8/9] egl/wayland: Implement swrast support
Axel Davy
axel.davy at ens.fr
Sat May 2 03:15:56 PDT 2015
Signed-off-by: Axel Davy <axel.davy at ens.fr>
---
src/egl/drivers/dri2/egl_dri2.c | 5 +-
src/egl/drivers/dri2/egl_dri2.h | 4 +
src/egl/drivers/dri2/platform_wayland.c | 704 +++++++++++++++++++++++++++++++-
3 files changed, 696 insertions(+), 17 deletions(-)
diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index 1145eed..689d5ec 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -709,7 +709,10 @@ dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
#endif
#ifdef HAVE_WAYLAND_PLATFORM
case _EGL_PLATFORM_WAYLAND:
- wl_drm_destroy(dri2_dpy->wl_drm);
+ if (dri2_dpy->wl_drm)
+ wl_drm_destroy(dri2_dpy->wl_drm);
+ if (dri2_dpy->wl_shm)
+ wl_shm_destroy(dri2_dpy->wl_shm);
wl_registry_destroy(dri2_dpy->wl_registry);
wl_event_queue_destroy(dri2_dpy->wl_queue);
if (dri2_dpy->own_device) {
diff --git a/src/egl/drivers/dri2/egl_dri2.h b/src/egl/drivers/dri2/egl_dri2.h
index 89fc308..ca0fd46 100644
--- a/src/egl/drivers/dri2/egl_dri2.h
+++ b/src/egl/drivers/dri2/egl_dri2.h
@@ -194,6 +194,7 @@ struct dri2_egl_display
struct wl_registry *wl_registry;
struct wl_drm *wl_server_drm;
struct wl_drm *wl_drm;
+ struct wl_shm *wl_shm;
struct wl_event_queue *wl_queue;
int authenticated;
int formats;
@@ -255,6 +256,9 @@ struct dri2_egl_surface
__DRIimage *dri_image;
/* for is_different_gpu case. NULL else */
__DRIimage *linear_copy;
+ /* for swrast */
+ void *data;
+ int data_size;
#endif
#ifdef HAVE_DRM_PLATFORM
struct gbm_bo *bo;
diff --git a/src/egl/drivers/dri2/platform_wayland.c b/src/egl/drivers/dri2/platform_wayland.c
index 9603c32..0ff7396 100644
--- a/src/egl/drivers/dri2/platform_wayland.c
+++ b/src/egl/drivers/dri2/platform_wayland.c
@@ -1,5 +1,6 @@
/*
* Copyright © 2011-2012 Intel Corporation
+ * Copyright © 2012 Collabora, Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -35,6 +36,7 @@
#include <unistd.h>
#include <fcntl.h>
#include <xf86drm.h>
+#include <sys/mman.h>
#include "egl_dri2.h"
#include "egl_dri2_fallbacks.h"
@@ -233,13 +235,18 @@ dri2_wl_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].dri_image);
if (dri2_surf->color_buffers[i].linear_copy)
dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].linear_copy);
+ if (dri2_surf->color_buffers[i].data)
+ munmap(dri2_surf->color_buffers[i].data,
+ dri2_surf->color_buffers[i].data_size);
}
- for (i = 0; i < __DRI_BUFFER_COUNT; i++)
- if (dri2_surf->dri_buffers[i] &&
- dri2_surf->dri_buffers[i]->attachment != __DRI_BUFFER_BACK_LEFT)
- dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
- dri2_surf->dri_buffers[i]);
+ if (dri2_dpy->dri2) {
+ for (i = 0; i < __DRI_BUFFER_COUNT; i++)
+ if (dri2_surf->dri_buffers[i] &&
+ dri2_surf->dri_buffers[i]->attachment != __DRI_BUFFER_BACK_LEFT)
+ dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
+ dri2_surf->dri_buffers[i]);
+ }
if (dri2_surf->throttle_callback)
wl_callback_destroy(dri2_surf->throttle_callback);
@@ -267,18 +274,24 @@ dri2_wl_release_buffers(struct dri2_egl_surface *dri2_surf)
dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].dri_image);
if (dri2_surf->color_buffers[i].linear_copy)
dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].linear_copy);
+ if (dri2_surf->color_buffers[i].data)
+ munmap(dri2_surf->color_buffers[i].data,
+ dri2_surf->color_buffers[i].data_size);
dri2_surf->color_buffers[i].wl_buffer = NULL;
dri2_surf->color_buffers[i].dri_image = NULL;
dri2_surf->color_buffers[i].linear_copy = NULL;
+ dri2_surf->color_buffers[i].data = NULL;
dri2_surf->color_buffers[i].locked = 0;
}
- for (i = 0; i < __DRI_BUFFER_COUNT; i++)
- if (dri2_surf->dri_buffers[i] &&
- dri2_surf->dri_buffers[i]->attachment != __DRI_BUFFER_BACK_LEFT)
- dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
- dri2_surf->dri_buffers[i]);
+ if (dri2_dpy->dri2) {
+ for (i = 0; i < __DRI_BUFFER_COUNT; i++)
+ if (dri2_surf->dri_buffers[i] &&
+ dri2_surf->dri_buffers[i]->attachment != __DRI_BUFFER_BACK_LEFT)
+ dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
+ dri2_surf->dri_buffers[i]);
+ }
}
static int
@@ -946,7 +959,7 @@ static const struct wl_drm_listener drm_listener = {
};
static void
-registry_handle_global(void *data, struct wl_registry *registry, uint32_t name,
+registry_handle_global_drm(void *data, struct wl_registry *registry, uint32_t name,
const char *interface, uint32_t version)
{
struct dri2_egl_display *dri2_dpy = data;
@@ -966,8 +979,8 @@ registry_handle_global_remove(void *data, struct wl_registry *registry,
{
}
-static const struct wl_registry_listener registry_listener = {
- registry_handle_global,
+static const struct wl_registry_listener registry_listener_drm = {
+ registry_handle_global_drm,
registry_handle_global_remove
};
@@ -1064,8 +1077,8 @@ is_render_node_capable(struct dri2_egl_display *dri2_dpy)
return EGL_FALSE;
}
-EGLBoolean
-dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp)
+static EGLBoolean
+dri2_initialize_wayland_drm(_EGLDriver *drv, _EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy;
const __DRIconfig *config;
@@ -1101,7 +1114,7 @@ dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp)
wl_proxy_set_queue((struct wl_proxy *) dri2_dpy->wl_registry,
dri2_dpy->wl_queue);
wl_registry_add_listener(dri2_dpy->wl_registry,
- ®istry_listener, dri2_dpy);
+ ®istry_listener_drm, dri2_dpy);
if (roundtrip(dri2_dpy) < 0 || dri2_dpy->wl_drm == NULL)
goto cleanup_registry;
@@ -1237,3 +1250,662 @@ dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp)
return EGL_FALSE;
}
+
+static int
+dri2_wl_swrast_get_stride_for_format(int format, int w)
+{
+ if (format == WL_SHM_FORMAT_RGB565)
+ return 2 * w;
+ else /* ARGB8888 || XRGB8888 */
+ return 4 * w;
+}
+
+/*
+ * Taken from weston shared/os-compatibility.c
+ */
+
+static int
+set_cloexec_or_close(int fd)
+{
+ long flags;
+
+ if (fd == -1)
+ return -1;
+
+ flags = fcntl(fd, F_GETFD);
+ if (flags == -1)
+ goto err;
+
+ if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1)
+ goto err;
+
+ return fd;
+
+err:
+ close(fd);
+ return -1;
+}
+
+/*
+ * Taken from weston shared/os-compatibility.c
+ */
+
+static int
+create_tmpfile_cloexec(char *tmpname)
+{
+ int fd;
+
+#ifdef HAVE_MKOSTEMP
+ fd = mkostemp(tmpname, O_CLOEXEC);
+ if (fd >= 0)
+ unlink(tmpname);
+#else
+ fd = mkstemp(tmpname);
+ if (fd >= 0) {
+ fd = set_cloexec_or_close(fd);
+ unlink(tmpname);
+ }
+#endif
+
+ return fd;
+}
+
+/*
+ * Taken from weston shared/os-compatibility.c
+ *
+ * Create a new, unique, anonymous file of the given size, and
+ * return the file descriptor for it. The file descriptor is set
+ * CLOEXEC. The file is immediately suitable for mmap()'ing
+ * the given size at offset zero.
+ *
+ * The file should not have a permanent backing store like a disk,
+ * but may have if XDG_RUNTIME_DIR is not properly implemented in OS.
+ *
+ * The file name is deleted from the file system.
+ *
+ * The file is suitable for buffer sharing between processes by
+ * transmitting the file descriptor over Unix sockets using the
+ * SCM_RIGHTS methods.
+ *
+ * If the C library implements posix_fallocate(), it is used to
+ * guarantee that disk space is available for the file at the
+ * given size. If disk space is insufficent, errno is set to ENOSPC.
+ * If posix_fallocate() is not supported, program may receive
+ * SIGBUS on accessing mmap()'ed file contents instead.
+ */
+static int
+os_create_anonymous_file(off_t size)
+{
+ static const char template[] = "/mesa-shared-XXXXXX";
+ const char *path;
+ char *name;
+ int fd;
+ int ret;
+
+ path = getenv("XDG_RUNTIME_DIR");
+ if (!path) {
+ errno = ENOENT;
+ return -1;
+ }
+
+ name = malloc(strlen(path) + sizeof(template));
+ if (!name)
+ return -1;
+
+ strcpy(name, path);
+ strcat(name, template);
+
+ fd = create_tmpfile_cloexec(name);
+
+ free(name);
+
+ if (fd < 0)
+ return -1;
+
+ ret = ftruncate(fd, size);
+ if (ret < 0) {
+ close(fd);
+ return -1;
+ }
+
+ return fd;
+}
+
+
+static EGLBoolean
+dri2_wl_swrast_allocate_buffer(struct dri2_egl_display *dri2_dpy,
+ int format, int w, int h,
+ void **data, int *size,
+ struct wl_buffer **buffer)
+{
+ struct wl_shm_pool *pool;
+ int fd, stride, size_map;
+ void *data_map;
+
+ stride = dri2_wl_swrast_get_stride_for_format(format, w);
+ size_map = h * stride;
+
+ /* Create a sharable buffer */
+ fd = os_create_anonymous_file(size_map);
+ if (fd < 0)
+ return EGL_FALSE;
+
+ data_map = mmap(NULL, size_map, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ if (data_map == MAP_FAILED) {
+ close(fd);
+ return EGL_FALSE;
+ }
+
+ /* Share it in a wl_buffer */
+ pool = wl_shm_create_pool(dri2_dpy->wl_shm, fd, size_map);
+ *buffer = wl_shm_pool_create_buffer(pool, 0, w, h, stride, format);
+ wl_shm_pool_destroy(pool);
+ close(fd);
+
+ *data = data_map;
+ *size = size_map;
+ return EGL_TRUE;
+}
+
+static int
+swrast_update_buffers(struct dri2_egl_surface *dri2_surf)
+{
+ struct dri2_egl_display *dri2_dpy =
+ dri2_egl_display(dri2_surf->base.Resource.Display);
+ int i;
+
+ /* we need to do the following operations only once per frame */
+ if (dri2_surf->back)
+ return 0;
+
+ if (dri2_surf->base.Width != dri2_surf->wl_win->width ||
+ dri2_surf->base.Height != dri2_surf->wl_win->height) {
+
+ dri2_wl_release_buffers(dri2_surf);
+
+ dri2_surf->base.Width = dri2_surf->wl_win->width;
+ dri2_surf->base.Height = dri2_surf->wl_win->height;
+ dri2_surf->dx = dri2_surf->wl_win->dx;
+ dri2_surf->dy = dri2_surf->wl_win->dy;
+ dri2_surf->current = NULL;
+ }
+
+ /* find back buffer */
+
+ /* We always want to throttle to some event (either a frame callback or
+ * a sync request) after the commit so that we can be sure the
+ * compositor has had a chance to handle it and send us a release event
+ * before we look for a free buffer */
+ while (dri2_surf->throttle_callback != NULL)
+ if (wl_display_dispatch_queue(dri2_dpy->wl_dpy,
+ dri2_dpy->wl_queue) == -1)
+ return -1;
+
+ /* try get free buffer already created */
+ for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
+ if (!dri2_surf->color_buffers[i].locked &&
+ dri2_surf->color_buffers[i].wl_buffer) {
+ dri2_surf->back = &dri2_surf->color_buffers[i];
+ break;
+ }
+ }
+
+ /* else choose any another free location */
+ if (!dri2_surf->back) {
+ for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
+ if (!dri2_surf->color_buffers[i].locked) {
+ dri2_surf->back = &dri2_surf->color_buffers[i];
+ if (!dri2_wl_swrast_allocate_buffer(dri2_dpy,
+ dri2_surf->format,
+ dri2_surf->base.Width,
+ dri2_surf->base.Height,
+ &dri2_surf->back->data,
+ &dri2_surf->back->data_size,
+ &dri2_surf->back->wl_buffer)) {
+ _eglError(EGL_BAD_ALLOC, "failed to allocate color buffer");
+ return -1;
+ }
+ wl_proxy_set_queue((struct wl_proxy *) dri2_surf->back->wl_buffer,
+ dri2_dpy->wl_queue);
+ wl_buffer_add_listener(dri2_surf->back->wl_buffer,
+ &wl_buffer_listener, dri2_surf);
+ break;
+ }
+ }
+ }
+
+ if (!dri2_surf->back) {
+ _eglError(EGL_BAD_ALLOC, "failed to find free buffer");
+ return -1;
+ }
+
+ dri2_surf->back->locked = 1;
+
+ /* If we have an extra unlocked buffer at this point, we had to do triple
+ * buffering for a while, but now can go back to just double buffering.
+ * That means we can free any unlocked buffer now. */
+ for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
+ if (!dri2_surf->color_buffers[i].locked &&
+ dri2_surf->color_buffers[i].wl_buffer) {
+ wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
+ munmap(dri2_surf->color_buffers[i].data,
+ dri2_surf->color_buffers[i].data_size);
+ dri2_surf->color_buffers[i].wl_buffer = NULL;
+ dri2_surf->color_buffers[i].data = NULL;
+ }
+ }
+
+ return 0;
+}
+
+static void*
+dri2_wl_swrast_get_frontbuffer_data(struct dri2_egl_surface *dri2_surf)
+{
+ /* if there has been a resize: */
+ if (!dri2_surf->current)
+ return NULL;
+
+ return dri2_surf->current->data;
+}
+
+static void*
+dri2_wl_swrast_get_backbuffer_data(struct dri2_egl_surface *dri2_surf)
+{
+ assert(dri2_surf->back);
+ return dri2_surf->back->data;
+}
+
+static void
+dri2_wl_swrast_commit_backbuffer(struct dri2_egl_surface *dri2_surf)
+{
+ struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display);
+
+ if (dri2_surf->base.SwapInterval > 0) {
+ dri2_surf->throttle_callback =
+ wl_surface_frame(dri2_surf->wl_win->surface);
+ wl_callback_add_listener(dri2_surf->throttle_callback,
+ &throttle_listener, dri2_surf);
+ wl_proxy_set_queue((struct wl_proxy *) dri2_surf->throttle_callback,
+ dri2_dpy->wl_queue);
+ }
+
+ dri2_surf->current = dri2_surf->back;
+ dri2_surf->back = NULL;
+
+ wl_surface_attach(dri2_surf->wl_win->surface,
+ dri2_surf->current->wl_buffer,
+ dri2_surf->dx, dri2_surf->dy);
+
+ dri2_surf->wl_win->attached_width = dri2_surf->base.Width;
+ dri2_surf->wl_win->attached_height = dri2_surf->base.Height;
+ /* reset resize growing parameters */
+ dri2_surf->dx = 0;
+ dri2_surf->dy = 0;
+
+ wl_surface_damage(dri2_surf->wl_win->surface,
+ 0, 0, INT32_MAX, INT32_MAX);
+ wl_surface_commit(dri2_surf->wl_win->surface);
+
+ /* If we're not waiting for a frame callback then we'll at least throttle
+ * to a sync callback so that we always give a chance for the compositor to
+ * handle the commit and send a release event before checking for a free
+ * buffer */
+ if (dri2_surf->throttle_callback == NULL) {
+ dri2_surf->throttle_callback = wl_display_sync(dri2_dpy->wl_dpy);
+ wl_callback_add_listener(dri2_surf->throttle_callback,
+ &throttle_listener, dri2_surf);
+ wl_proxy_set_queue((struct wl_proxy *) dri2_surf->throttle_callback,
+ dri2_dpy->wl_queue);
+ }
+
+ wl_display_flush(dri2_dpy->wl_dpy);
+}
+
+static void
+dri2_wl_swrast_get_drawable_info(__DRIdrawable * draw,
+ int *x, int *y, int *w, int *h,
+ void *loaderPrivate)
+{
+ struct dri2_egl_surface *dri2_surf = loaderPrivate;
+
+ (void) swrast_update_buffers(dri2_surf);
+ *x = 0;
+ *y = 0;
+ *w = dri2_surf->base.Width;
+ *h = dri2_surf->base.Height;
+}
+
+static void
+dri2_wl_swrast_get_image(__DRIdrawable * read,
+ int x, int y, int w, int h,
+ char *data, void *loaderPrivate)
+{
+ struct dri2_egl_surface *dri2_surf = loaderPrivate;
+ int copy_width = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, w);
+ int x_offset = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, x);
+ int src_stride = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, dri2_surf->base.Width);
+ int dst_stride = copy_width;
+ char *src, *dst;
+
+ src = dri2_wl_swrast_get_frontbuffer_data(dri2_surf);
+ if (!src) {
+ memset(data, 0, copy_width * h);
+ return;
+ }
+
+ assert(data != src);
+ assert(copy_width <= src_stride);
+
+ src += x_offset;
+ src += y * src_stride;
+ dst = data;
+
+ if (copy_width > src_stride-x_offset)
+ copy_width = src_stride-x_offset;
+ if (h > dri2_surf->base.Height-y)
+ h = dri2_surf->base.Height-y;
+
+ for (; h>0; h--) {
+ memcpy(dst, src, copy_width);
+ src += src_stride;
+ dst += dst_stride;
+ }
+}
+
+static void
+dri2_wl_swrast_put_image2(__DRIdrawable * draw, int op,
+ int x, int y, int w, int h, int stride,
+ char *data, void *loaderPrivate)
+{
+ struct dri2_egl_surface *dri2_surf = loaderPrivate;
+ int copy_width = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, w);
+ int dst_stride = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, dri2_surf->base.Width);
+ int x_offset = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, x);
+ char *src, *dst;
+
+ assert(copy_width <= stride);
+
+ (void) swrast_update_buffers(dri2_surf);
+ dst = dri2_wl_swrast_get_backbuffer_data(dri2_surf);
+
+ /* partial copy, copy old content */
+ if (copy_width < dst_stride)
+ dri2_wl_swrast_get_image(draw, 0, 0,
+ dri2_surf->base.Width, dri2_surf->base.Height,
+ dst, loaderPrivate);
+
+ dst += x_offset;
+ dst += y * dst_stride;
+
+ src = data;
+
+ /* drivers expect we do these checks (and some rely on it) */
+ if (copy_width > dst_stride-x_offset)
+ copy_width = dst_stride-x_offset;
+ if (h > dri2_surf->base.Height-y)
+ h = dri2_surf->base.Height-y;
+
+ for (; h>0; h--) {
+ memcpy(dst, src, copy_width);
+ src += stride;
+ dst += dst_stride;
+ }
+ dri2_wl_swrast_commit_backbuffer(dri2_surf);
+}
+
+static void
+dri2_wl_swrast_put_image(__DRIdrawable * draw, int op,
+ int x, int y, int w, int h,
+ char *data, void *loaderPrivate)
+{
+ struct dri2_egl_surface *dri2_surf = loaderPrivate;
+ int stride;
+
+ stride = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, w);
+ dri2_wl_swrast_put_image2(draw, op, x, y, w, h,
+ stride, data, loaderPrivate);
+}
+
+/**
+ * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
+ */
+static _EGLSurface *
+dri2_wl_swrast_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
+ _EGLConfig *conf, void *native_window,
+ const EGLint *attrib_list)
+{
+ struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+ struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
+ struct wl_egl_window *window = native_window;
+ struct dri2_egl_surface *dri2_surf;
+
+ (void) drv;
+
+ dri2_surf = calloc(1, sizeof *dri2_surf);
+ if (!dri2_surf) {
+ _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
+ return NULL;
+ }
+
+ if (!_eglInitSurface(&dri2_surf->base, disp, EGL_WINDOW_BIT, conf, attrib_list))
+ goto cleanup_surf;
+
+ if (conf->RedSize == 5)
+ dri2_surf->format = WL_SHM_FORMAT_RGB565;
+ else if (conf->AlphaSize == 0)
+ dri2_surf->format = WL_SHM_FORMAT_XRGB8888;
+ else
+ dri2_surf->format = WL_SHM_FORMAT_ARGB8888;
+
+ dri2_surf->wl_win = window;
+
+ dri2_surf->base.Width = -1;
+ dri2_surf->base.Height = -1;
+
+ dri2_surf->dri_drawable =
+ (*dri2_dpy->swrast->createNewDrawable) (dri2_dpy->dri_screen,
+ dri2_conf->dri_double_config,
+ dri2_surf);
+ if (dri2_surf->dri_drawable == NULL) {
+ _eglError(EGL_BAD_ALLOC, "swrast->createNewDrawable");
+ goto cleanup_dri_drawable;
+ }
+
+ dri2_wl_swap_interval(drv, disp, &dri2_surf->base,
+ dri2_dpy->default_swap_interval);
+
+ return &dri2_surf->base;
+
+ cleanup_dri_drawable:
+ dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
+ cleanup_surf:
+ free(dri2_surf);
+
+ return NULL;
+}
+
+static EGLBoolean
+dri2_wl_swrast_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
+{
+ struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+ struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
+
+ dri2_dpy->core->swapBuffers(dri2_surf->dri_drawable);
+ return EGL_TRUE;
+}
+
+static void
+shm_handle_format(void *data, struct wl_shm *shm, uint32_t format)
+{
+ struct dri2_egl_display *dri2_dpy = data;
+
+ switch (format) {
+ case WL_SHM_FORMAT_ARGB8888:
+ dri2_dpy->formats |= HAS_ARGB8888;
+ break;
+ case WL_SHM_FORMAT_XRGB8888:
+ dri2_dpy->formats |= HAS_XRGB8888;
+ break;
+ case WL_SHM_FORMAT_RGB565:
+ dri2_dpy->formats |= HAS_RGB565;
+ break;
+ }
+}
+
+static const struct wl_shm_listener shm_listener = {
+ shm_handle_format
+};
+
+static void
+registry_handle_global_swrast(void *data, struct wl_registry *registry, uint32_t name,
+ const char *interface, uint32_t version)
+{
+ struct dri2_egl_display *dri2_dpy = data;
+
+ if (strcmp(interface, "wl_shm") == 0) {
+ dri2_dpy->wl_shm =
+ wl_registry_bind(registry, name, &wl_shm_interface, 1);
+ wl_shm_add_listener(dri2_dpy->wl_shm, &shm_listener, dri2_dpy);
+ }
+}
+
+static const struct wl_registry_listener registry_listener_swrast = {
+ registry_handle_global_swrast,
+ registry_handle_global_remove
+};
+
+static struct dri2_egl_display_vtbl dri2_wl_swrast_display_vtbl = {
+ .authenticate = NULL,
+ .create_window_surface = dri2_wl_swrast_create_window_surface,
+ .create_pixmap_surface = dri2_wl_create_pixmap_surface,
+ .create_pbuffer_surface = dri2_fallback_create_pbuffer_surface,
+ .destroy_surface = dri2_wl_destroy_surface,
+ .create_image = dri2_fallback_create_image_khr,
+ .swap_interval = dri2_wl_swap_interval,
+ .swap_buffers = dri2_wl_swrast_swap_buffers,
+ .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
+ .swap_buffers_region = dri2_fallback_swap_buffers_region,
+ .post_sub_buffer = dri2_fallback_post_sub_buffer,
+ .copy_buffers = dri2_fallback_copy_buffers,
+ .query_buffer_age = dri2_fallback_query_buffer_age,
+ .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image,
+ .get_sync_values = dri2_fallback_get_sync_values,
+};
+
+static EGLBoolean
+dri2_initialize_wayland_swrast(_EGLDriver *drv, _EGLDisplay *disp)
+{
+ struct dri2_egl_display *dri2_dpy;
+ const __DRIconfig *config;
+ uint32_t types;
+ int i;
+ static const unsigned int argb_masks[4] =
+ { 0xff0000, 0xff00, 0xff, 0xff000000 };
+ static const unsigned int rgb_masks[4] = { 0xff0000, 0xff00, 0xff, 0 };
+ static const unsigned int rgb565_masks[4] = { 0xf800, 0x07e0, 0x001f, 0 };
+
+ loader_set_logger(_eglLog);
+
+ dri2_dpy = calloc(1, sizeof *dri2_dpy);
+ if (!dri2_dpy)
+ return _eglError(EGL_BAD_ALLOC, "eglInitialize");
+
+ disp->DriverData = (void *) dri2_dpy;
+ if (disp->PlatformDisplay == NULL) {
+ dri2_dpy->wl_dpy = wl_display_connect(NULL);
+ if (dri2_dpy->wl_dpy == NULL)
+ goto cleanup_dpy;
+ dri2_dpy->own_device = 1;
+ } else {
+ dri2_dpy->wl_dpy = disp->PlatformDisplay;
+ }
+
+ dri2_dpy->wl_queue = wl_display_create_queue(dri2_dpy->wl_dpy);
+
+ if (dri2_dpy->own_device)
+ wl_display_dispatch_pending(dri2_dpy->wl_dpy);
+
+ dri2_dpy->wl_registry = wl_display_get_registry(dri2_dpy->wl_dpy);
+ wl_proxy_set_queue((struct wl_proxy *) dri2_dpy->wl_registry,
+ dri2_dpy->wl_queue);
+ wl_registry_add_listener(dri2_dpy->wl_registry,
+ ®istry_listener_swrast, dri2_dpy);
+
+ if (roundtrip(dri2_dpy) < 0 || dri2_dpy->wl_shm == NULL)
+ goto cleanup_registry;
+
+ if (roundtrip(dri2_dpy) < 0 || dri2_dpy->formats == 0)
+ goto cleanup_shm;
+
+ dri2_dpy->driver_name = strdup("swrast");
+ if (!dri2_load_driver_swrast(disp))
+ goto cleanup_shm;
+
+ dri2_dpy->swrast_loader_extension.base.name = __DRI_SWRAST_LOADER;
+ dri2_dpy->swrast_loader_extension.base.version = 2;
+ dri2_dpy->swrast_loader_extension.getDrawableInfo = dri2_wl_swrast_get_drawable_info;
+ dri2_dpy->swrast_loader_extension.putImage = dri2_wl_swrast_put_image;
+ dri2_dpy->swrast_loader_extension.getImage = dri2_wl_swrast_get_image;
+ dri2_dpy->swrast_loader_extension.putImage2 = dri2_wl_swrast_put_image2;
+
+ dri2_dpy->extensions[0] = &dri2_dpy->swrast_loader_extension.base;
+ dri2_dpy->extensions[1] = NULL;
+
+ if (!dri2_create_screen(disp))
+ goto cleanup_driver;
+
+ dri2_wl_setup_swap_interval(dri2_dpy);
+
+ types = EGL_WINDOW_BIT;
+ for (i = 0; dri2_dpy->driver_configs[i]; i++) {
+ config = dri2_dpy->driver_configs[i];
+ if (dri2_dpy->formats & HAS_XRGB8888)
+ dri2_add_config(disp, config, i + 1, types, NULL, rgb_masks);
+ if (dri2_dpy->formats & HAS_ARGB8888)
+ dri2_add_config(disp, config, i + 1, types, NULL, argb_masks);
+ if (dri2_dpy->formats & HAS_RGB565)
+ dri2_add_config(disp, config, i + 1, types, NULL, rgb565_masks);
+ }
+
+ /* we're supporting EGL 1.4 */
+ disp->VersionMajor = 1;
+ disp->VersionMinor = 4;
+
+ /* Fill vtbl last to prevent accidentally calling virtual function during
+ * initialization.
+ */
+ dri2_dpy->vtbl = &dri2_wl_swrast_display_vtbl;
+
+ return EGL_TRUE;
+
+ cleanup_driver:
+ dlclose(dri2_dpy->driver);
+ cleanup_shm:
+ wl_shm_destroy(dri2_dpy->wl_shm);
+ cleanup_registry:
+ wl_registry_destroy(dri2_dpy->wl_registry);
+ wl_event_queue_destroy(dri2_dpy->wl_queue);
+ cleanup_dpy:
+ free(dri2_dpy);
+
+ return EGL_FALSE;
+}
+
+EGLBoolean
+dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp)
+{
+ EGLBoolean initialized = EGL_TRUE;
+
+ int hw_accel = (getenv("LIBGL_ALWAYS_SOFTWARE") == NULL);
+
+ if (hw_accel) {
+ if (!dri2_initialize_wayland_drm(drv, disp)) {
+ initialized = dri2_initialize_wayland_swrast(drv, disp);
+ }
+ } else {
+ initialized = dri2_initialize_wayland_swrast(drv, disp);
+ }
+
+ return initialized;
+
+}
--
2.3.7
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