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mesa/src/egl/drivers/dri2/platform_wayland.c

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/*
* Copyright © 2011-2012 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.
*
* Authors:
* Kristian Høgsberg <krh@bitplanet.net>
* Benjamin Franzke <benjaminfranzke@googlemail.com>
*/
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <dlfcn.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <xf86drm.h>
#include "egl_dri2.h"
#include "egl_dri2_fallbacks.h"
#include "loader.h"
#include <wayland-client.h>
#include "wayland-drm-client-protocol.h"
enum wl_drm_format_flags {
HAS_ARGB8888 = 1,
HAS_XRGB8888 = 2,
HAS_RGB565 = 4,
};
static EGLBoolean
dri2_wl_swap_interval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
EGLint interval);
static void
sync_callback(void *data, struct wl_callback *callback, uint32_t serial)
{
int *done = data;
*done = 1;
wl_callback_destroy(callback);
}
static const struct wl_callback_listener sync_listener = {
sync_callback
};
static int
roundtrip(struct dri2_egl_display *dri2_dpy)
{
struct wl_callback *callback;
int done = 0, ret = 0;
callback = wl_display_sync(dri2_dpy->wl_dpy);
wl_callback_add_listener(callback, &sync_listener, &done);
wl_proxy_set_queue((struct wl_proxy *) callback, dri2_dpy->wl_queue);
while (ret != -1 && !done)
ret = wl_display_dispatch_queue(dri2_dpy->wl_dpy, dri2_dpy->wl_queue);
if (!done)
wl_callback_destroy(callback);
return ret;
}
static void
wl_buffer_release(void *data, struct wl_buffer *buffer)
{
struct dri2_egl_surface *dri2_surf = data;
int i;
for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); ++i)
if (dri2_surf->color_buffers[i].wl_buffer == buffer)
break;
if (i == ARRAY_SIZE(dri2_surf->color_buffers)) {
wl_buffer_destroy(buffer);
return;
}
dri2_surf->color_buffers[i].locked = 0;
}
static struct wl_buffer_listener wl_buffer_listener = {
wl_buffer_release
};
static void
resize_callback(struct wl_egl_window *wl_win, void *data)
{
struct dri2_egl_surface *dri2_surf = data;
struct dri2_egl_display *dri2_dpy =
dri2_egl_display(dri2_surf->base.Resource.Display);
(*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
}
/**
* Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
*/
static _EGLSurface *
dri2_wl_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
_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 = malloc(sizeof *dri2_surf);
if (!dri2_surf) {
_eglError(EGL_BAD_ALLOC, "dri2_create_surface");
return NULL;
}
memset(dri2_surf, 0, sizeof *dri2_surf);
if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
goto cleanup_surf;
if (conf->RedSize == 5)
dri2_surf->format = WL_DRM_FORMAT_RGB565;
else if (conf->AlphaSize == 0)
dri2_surf->format = WL_DRM_FORMAT_XRGB8888;
else
dri2_surf->format = WL_DRM_FORMAT_ARGB8888;
switch (type) {
case EGL_WINDOW_BIT:
dri2_surf->wl_win = window;
dri2_surf->wl_win->private = dri2_surf;
dri2_surf->wl_win->resize_callback = resize_callback;
dri2_surf->base.Width = -1;
dri2_surf->base.Height = -1;
break;
default:
goto cleanup_surf;
}
dri2_surf->dri_drawable =
(*dri2_dpy->dri2->createNewDrawable) (dri2_dpy->dri_screen,
type == EGL_WINDOW_BIT ?
dri2_conf->dri_double_config :
dri2_conf->dri_single_config,
dri2_surf);
if (dri2_surf->dri_drawable == NULL) {
_eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
goto cleanup_dri_drawable;
}
return &dri2_surf->base;
cleanup_dri_drawable:
dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
cleanup_surf:
free(dri2_surf);
return NULL;
}
/**
* Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
*/
static _EGLSurface *
dri2_wl_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);
_EGLSurface *surf;
surf = dri2_wl_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
native_window, attrib_list);
if (surf != NULL)
dri2_wl_swap_interval(drv, disp, surf, dri2_dpy->default_swap_interval);
return surf;
}
static _EGLSurface *
dri2_wl_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
_EGLConfig *conf, void *native_window,
const EGLint *attrib_list)
{
/* From the EGL_EXT_platform_wayland spec, version 3:
*
* It is not valid to call eglCreatePlatformPixmapSurfaceEXT with a <dpy>
* that belongs to Wayland. Any such call fails and generates
* EGL_BAD_PARAMETER.
*/
_eglError(EGL_BAD_PARAMETER, "cannot create EGL pixmap surfaces on "
"Wayland");
return NULL;
}
/**
* Called via eglDestroySurface(), drv->API.DestroySurface().
*/
static EGLBoolean
dri2_wl_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
int i;
(void) drv;
if (!_eglPutSurface(surf))
return EGL_TRUE;
(*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
if (dri2_surf->color_buffers[i].wl_buffer)
wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
if (dri2_surf->color_buffers[i].dri_image)
dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].dri_image);
}
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);
if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
dri2_surf->wl_win->private = NULL;
dri2_surf->wl_win->resize_callback = NULL;
}
free(surf);
return EGL_TRUE;
}
static void
dri2_wl_release_buffers(struct dri2_egl_surface *dri2_surf)
{
struct dri2_egl_display *dri2_dpy =
dri2_egl_display(dri2_surf->base.Resource.Display);
int i;
for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
if (dri2_surf->color_buffers[i].wl_buffer &&
!dri2_surf->color_buffers[i].locked)
wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
if (dri2_surf->color_buffers[i].dri_image)
dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].dri_image);
dri2_surf->color_buffers[i].wl_buffer = NULL;
dri2_surf->color_buffers[i].dri_image = 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]);
}
static int
get_back_bo(struct dri2_egl_surface *dri2_surf)
{
struct dri2_egl_display *dri2_dpy =
dri2_egl_display(dri2_surf->base.Resource.Display);
int i;
/* 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;
if (dri2_surf->back == NULL) {
for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
/* Get an unlocked buffer, preferrably one with a dri_buffer
* already allocated. */
if (dri2_surf->color_buffers[i].locked)
continue;
if (dri2_surf->back == NULL)
dri2_surf->back = &dri2_surf->color_buffers[i];
else if (dri2_surf->back->dri_image == NULL)
dri2_surf->back = &dri2_surf->color_buffers[i];
}
}
if (dri2_surf->back == NULL)
return -1;
if (dri2_surf->back->dri_image == NULL) {
dri2_surf->back->dri_image =
dri2_dpy->image->createImage(dri2_dpy->dri_screen,
dri2_surf->base.Width,
dri2_surf->base.Height,
__DRI_IMAGE_FORMAT_ARGB8888,
__DRI_IMAGE_USE_SHARE,
NULL);
dri2_surf->back->age = 0;
}
if (dri2_surf->back->dri_image == NULL)
return -1;
dri2_surf->back->locked = 1;
return 0;
}
static void
back_bo_to_dri_buffer(struct dri2_egl_surface *dri2_surf, __DRIbuffer *buffer)
{
struct dri2_egl_display *dri2_dpy =
dri2_egl_display(dri2_surf->base.Resource.Display);
__DRIimage *image;
int name, pitch;
image = dri2_surf->back->dri_image;
dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_NAME, &name);
dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &pitch);
buffer->attachment = __DRI_BUFFER_BACK_LEFT;
buffer->name = name;
buffer->pitch = pitch;
buffer->cpp = 4;
buffer->flags = 0;
}
static int
get_aux_bo(struct dri2_egl_surface *dri2_surf,
unsigned int attachment, unsigned int format, __DRIbuffer *buffer)
{
struct dri2_egl_display *dri2_dpy =
dri2_egl_display(dri2_surf->base.Resource.Display);
__DRIbuffer *b = dri2_surf->dri_buffers[attachment];
if (b == NULL) {
b = dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen,
attachment, format,
dri2_surf->base.Width,
dri2_surf->base.Height);
dri2_surf->dri_buffers[attachment] = b;
}
if (b == NULL)
return -1;
memcpy(buffer, b, sizeof *buffer);
return 0;
}
static int
update_buffers(struct dri2_egl_surface *dri2_surf)
{
struct dri2_egl_display *dri2_dpy =
dri2_egl_display(dri2_surf->base.Resource.Display);
int i;
if (dri2_surf->base.Type == EGL_WINDOW_BIT &&
(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;
}
if (get_back_bo(dri2_surf) < 0) {
_eglError(EGL_BAD_ALLOC, "failed to allocate color buffer");
return -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);
dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].dri_image);
dri2_surf->color_buffers[i].wl_buffer = NULL;
dri2_surf->color_buffers[i].dri_image = NULL;
}
}
return 0;
}
static __DRIbuffer *
dri2_wl_get_buffers_with_format(__DRIdrawable * driDrawable,
int *width, int *height,
unsigned int *attachments, int count,
int *out_count, void *loaderPrivate)
{
struct dri2_egl_surface *dri2_surf = loaderPrivate;
int i, j;
if (update_buffers(dri2_surf) < 0)
return NULL;
for (i = 0, j = 0; i < 2 * count; i += 2, j++) {
switch (attachments[i]) {
case __DRI_BUFFER_BACK_LEFT:
back_bo_to_dri_buffer(dri2_surf, &dri2_surf->buffers[j]);
break;
default:
if (get_aux_bo(dri2_surf, attachments[i], attachments[i + 1],
&dri2_surf->buffers[j]) < 0) {
_eglError(EGL_BAD_ALLOC, "failed to allocate aux buffer");
return NULL;
}
break;
}
}
*out_count = j;
if (j == 0)
return NULL;
*width = dri2_surf->base.Width;
*height = dri2_surf->base.Height;
return dri2_surf->buffers;
}
static __DRIbuffer *
dri2_wl_get_buffers(__DRIdrawable * driDrawable,
int *width, int *height,
unsigned int *attachments, int count,
int *out_count, void *loaderPrivate)
{
unsigned int *attachments_with_format;
__DRIbuffer *buffer;
const unsigned int format = 32;
int i;
attachments_with_format = calloc(count * 2, sizeof(unsigned int));
if (!attachments_with_format) {
*out_count = 0;
return NULL;
}
for (i = 0; i < count; ++i) {
attachments_with_format[2*i] = attachments[i];
attachments_with_format[2*i + 1] = format;
}
buffer =
dri2_wl_get_buffers_with_format(driDrawable,
width, height,
attachments_with_format, count,
out_count, loaderPrivate);
free(attachments_with_format);
return buffer;
}
static int
image_get_buffers(__DRIdrawable *driDrawable,
unsigned int format,
uint32_t *stamp,
void *loaderPrivate,
uint32_t buffer_mask,
struct __DRIimageList *buffers)
{
struct dri2_egl_surface *dri2_surf = loaderPrivate;
if (update_buffers(dri2_surf) < 0)
return 0;
buffers->image_mask = __DRI_IMAGE_BUFFER_BACK;
buffers->back = dri2_surf->back->dri_image;
return 1;
}
static void
dri2_wl_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
{
(void) driDrawable;
(void) loaderPrivate;
}
static const __DRIimageLoaderExtension image_loader_extension = {
.base = { __DRI_IMAGE_LOADER, 1 },
.getBuffers = image_get_buffers,
.flushFrontBuffer = dri2_wl_flush_front_buffer,
};
static void
wayland_throttle_callback(void *data,
struct wl_callback *callback,
uint32_t time)
{
struct dri2_egl_surface *dri2_surf = data;
dri2_surf->throttle_callback = NULL;
wl_callback_destroy(callback);
}
static const struct wl_callback_listener throttle_listener = {
wayland_throttle_callback
};
static void
create_wl_buffer(struct dri2_egl_surface *dri2_surf)
{
struct dri2_egl_display *dri2_dpy =
dri2_egl_display(dri2_surf->base.Resource.Display);
int fd, stride, name;
if (dri2_surf->current->wl_buffer != NULL)
return;
if (dri2_dpy->capabilities & WL_DRM_CAPABILITY_PRIME) {
dri2_dpy->image->queryImage(dri2_surf->current->dri_image,
__DRI_IMAGE_ATTRIB_FD, &fd);
dri2_dpy->image->queryImage(dri2_surf->current->dri_image,
__DRI_IMAGE_ATTRIB_STRIDE, &stride);
dri2_surf->current->wl_buffer =
wl_drm_create_prime_buffer(dri2_dpy->wl_drm,
fd,
dri2_surf->base.Width,
dri2_surf->base.Height,
dri2_surf->format,
0, stride,
0, 0,
0, 0);
close(fd);
} else {
dri2_dpy->image->queryImage(dri2_surf->current->dri_image,
__DRI_IMAGE_ATTRIB_NAME, &name);
dri2_dpy->image->queryImage(dri2_surf->current->dri_image,
__DRI_IMAGE_ATTRIB_STRIDE, &stride);
dri2_surf->current->wl_buffer =
wl_drm_create_buffer(dri2_dpy->wl_drm,
name,
dri2_surf->base.Width,
dri2_surf->base.Height,
stride,
dri2_surf->format);
}
wl_proxy_set_queue((struct wl_proxy *) dri2_surf->current->wl_buffer,
dri2_dpy->wl_queue);
wl_buffer_add_listener(dri2_surf->current->wl_buffer,
&wl_buffer_listener, dri2_surf);
}
/**
* Called via eglSwapBuffers(), drv->API.SwapBuffers().
*/
static EGLBoolean
dri2_wl_swap_buffers_with_damage(_EGLDriver *drv,
_EGLDisplay *disp,
_EGLSurface *draw,
const EGLint *rects,
EGLint n_rects)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
struct dri2_egl_context *dri2_ctx;
_EGLContext *ctx;
int i;
for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++)
if (dri2_surf->color_buffers[i].age > 0)
dri2_surf->color_buffers[i].age++;
/* Make sure we have a back buffer in case we're swapping without ever
* rendering. */
if (get_back_bo(dri2_surf) < 0) {
_eglError(EGL_BAD_ALLOC, "dri2_swap_buffers");
return EGL_FALSE;
}
if (draw->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->back->age = 1;
dri2_surf->current = dri2_surf->back;
dri2_surf->back = NULL;
create_wl_buffer(dri2_surf);
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;
if (n_rects == 0) {
wl_surface_damage(dri2_surf->wl_win->surface,
0, 0, INT32_MAX, INT32_MAX);
} else {
for (i = 0; i < n_rects; i++) {
const int *rect = &rects[i * 4];
wl_surface_damage(dri2_surf->wl_win->surface,
rect[0],
dri2_surf->base.Height - rect[1] - rect[3],
rect[2], rect[3]);
}
}
if (dri2_dpy->flush->base.version >= 4) {
ctx = _eglGetCurrentContext();
dri2_ctx = dri2_egl_context(ctx);
(*dri2_dpy->flush->flush_with_flags)(dri2_ctx->dri_context,
dri2_surf->dri_drawable,
__DRI2_FLUSH_DRAWABLE,
__DRI2_THROTTLE_SWAPBUFFER);
} else {
(*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
}
(*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
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);
return EGL_TRUE;
}
static EGLint
dri2_wl_query_buffer_age(_EGLDriver *drv,
_EGLDisplay *disp, _EGLSurface *surface)
{
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surface);
if (get_back_bo(dri2_surf) < 0) {
_eglError(EGL_BAD_ALLOC, "dri2_query_buffer_age");
return 0;
}
return dri2_surf->back->age;
}
static EGLBoolean
dri2_wl_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
{
return dri2_wl_swap_buffers_with_damage (drv, disp, draw, NULL, 0);
}
static struct wl_buffer *
dri2_wl_create_wayland_buffer_from_image(_EGLDriver *drv,
_EGLDisplay *disp,
_EGLImage *img)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_image *dri2_img = dri2_egl_image(img);
__DRIimage *image = dri2_img->dri_image;
struct wl_buffer *buffer;
int width, height, format, pitch;
enum wl_drm_format wl_format;
dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_FORMAT, &format);
switch (format) {
case __DRI_IMAGE_FORMAT_ARGB8888:
if (!(dri2_dpy->formats & HAS_ARGB8888))
goto bad_format;
wl_format = WL_DRM_FORMAT_ARGB8888;
break;
case __DRI_IMAGE_FORMAT_XRGB8888:
if (!(dri2_dpy->formats & HAS_XRGB8888))
goto bad_format;
wl_format = WL_DRM_FORMAT_XRGB8888;
break;
default:
goto bad_format;
}
dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_WIDTH, &width);
dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_HEIGHT, &height);
dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &pitch);
if (dri2_dpy->capabilities & WL_DRM_CAPABILITY_PRIME) {
int fd;
dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_FD, &fd);
buffer =
wl_drm_create_prime_buffer(dri2_dpy->wl_drm,
fd,
width, height,
wl_format,
0, pitch,
0, 0,
0, 0);
close(fd);
} else {
int name;
dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_NAME, &name);
buffer =
wl_drm_create_buffer(dri2_dpy->wl_drm,
name,
width, height,
pitch,
wl_format);
}
/* The buffer object will have been created with our internal event queue
* because it is using the wl_drm object as a proxy factory. We want the
* buffer to be used by the application so we'll reset it to the display's
* default event queue */
if (buffer)
wl_proxy_set_queue((struct wl_proxy *) buffer, NULL);
return buffer;
bad_format:
_eglError(EGL_BAD_MATCH, "unsupported image format");
return NULL;
}
static int
dri2_wl_authenticate(_EGLDisplay *disp, uint32_t id)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
int ret = 0;
dri2_dpy->authenticated = 0;
wl_drm_authenticate(dri2_dpy->wl_drm, id);
if (roundtrip(dri2_dpy) < 0)
ret = -1;
if (!dri2_dpy->authenticated)
ret = -1;
/* reset authenticated */
dri2_dpy->authenticated = 1;
return ret;
}
static void
drm_handle_device(void *data, struct wl_drm *drm, const char *device)
{
struct dri2_egl_display *dri2_dpy = data;
drm_magic_t magic;
dri2_dpy->device_name = strdup(device);
if (!dri2_dpy->device_name)
return;
#ifdef O_CLOEXEC
dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR | O_CLOEXEC);
if (dri2_dpy->fd == -1 && errno == EINVAL)
#endif
{
dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR);
if (dri2_dpy->fd != -1)
fcntl(dri2_dpy->fd, F_SETFD, fcntl(dri2_dpy->fd, F_GETFD) |
FD_CLOEXEC);
}
if (dri2_dpy->fd == -1) {
_eglLog(_EGL_WARNING, "wayland-egl: could not open %s (%s)",
dri2_dpy->device_name, strerror(errno));
return;
}
drmGetMagic(dri2_dpy->fd, &magic);
wl_drm_authenticate(dri2_dpy->wl_drm, magic);
}
static void
drm_handle_format(void *data, struct wl_drm *drm, uint32_t format)
{
struct dri2_egl_display *dri2_dpy = data;
switch (format) {
case WL_DRM_FORMAT_ARGB8888:
dri2_dpy->formats |= HAS_ARGB8888;
break;
case WL_DRM_FORMAT_XRGB8888:
dri2_dpy->formats |= HAS_XRGB8888;
break;
case WL_DRM_FORMAT_RGB565:
dri2_dpy->formats |= HAS_RGB565;
break;
}
}
static void
drm_handle_capabilities(void *data, struct wl_drm *drm, uint32_t value)
{
struct dri2_egl_display *dri2_dpy = data;
dri2_dpy->capabilities = value;
}
static void
drm_handle_authenticated(void *data, struct wl_drm *drm)
{
struct dri2_egl_display *dri2_dpy = data;
dri2_dpy->authenticated = 1;
}
static const struct wl_drm_listener drm_listener = {
drm_handle_device,
drm_handle_format,
drm_handle_authenticated,
drm_handle_capabilities
};
static void
registry_handle_global(void *data, struct wl_registry *registry, uint32_t name,
const char *interface, uint32_t version)
{
struct dri2_egl_display *dri2_dpy = data;
if (version > 1)
version = 2;
if (strcmp(interface, "wl_drm") == 0) {
dri2_dpy->wl_drm =
wl_registry_bind(registry, name, &wl_drm_interface, version);
wl_drm_add_listener(dri2_dpy->wl_drm, &drm_listener, dri2_dpy);
}
}
static void
registry_handle_global_remove(void *data, struct wl_registry *registry,
uint32_t name)
{
}
static const struct wl_registry_listener registry_listener = {
registry_handle_global,
registry_handle_global_remove
};
static EGLBoolean
dri2_wl_swap_interval(_EGLDriver *drv,
_EGLDisplay *disp,
_EGLSurface *surf,
EGLint interval)
{
if (interval > surf->Config->MaxSwapInterval)
interval = surf->Config->MaxSwapInterval;
else if (interval < surf->Config->MinSwapInterval)
interval = surf->Config->MinSwapInterval;
surf->SwapInterval = interval;
return EGL_TRUE;
}
static void
dri2_wl_setup_swap_interval(struct dri2_egl_display *dri2_dpy)
{
GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
/* We can't use values greater than 1 on Wayland because we are using the
* frame callback to synchronise the frame and the only way we be sure to
* get a frame callback is to attach a new buffer. Therefore we can't just
* sit drawing nothing to wait until the next ‘n’ frame callbacks */
if (dri2_dpy->config)
dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
"vblank_mode", &vblank_mode);
switch (vblank_mode) {
case DRI_CONF_VBLANK_NEVER:
dri2_dpy->min_swap_interval = 0;
dri2_dpy->max_swap_interval = 0;
dri2_dpy->default_swap_interval = 0;
break;
case DRI_CONF_VBLANK_ALWAYS_SYNC:
dri2_dpy->min_swap_interval = 1;
dri2_dpy->max_swap_interval = 1;
dri2_dpy->default_swap_interval = 1;
break;
case DRI_CONF_VBLANK_DEF_INTERVAL_0:
dri2_dpy->min_swap_interval = 0;
dri2_dpy->max_swap_interval = 1;
dri2_dpy->default_swap_interval = 0;
break;
default:
case DRI_CONF_VBLANK_DEF_INTERVAL_1:
dri2_dpy->min_swap_interval = 0;
dri2_dpy->max_swap_interval = 1;
dri2_dpy->default_swap_interval = 1;
break;
}
}
static struct dri2_egl_display_vtbl dri2_wl_display_vtbl = {
.authenticate = dri2_wl_authenticate,
.create_window_surface = dri2_wl_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_create_image_khr,
.swap_interval = dri2_wl_swap_interval,
.swap_buffers = dri2_wl_swap_buffers,
.swap_buffers_with_damage = dri2_wl_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_wl_query_buffer_age,
.create_wayland_buffer_from_image = dri2_wl_create_wayland_buffer_from_image,
.get_sync_values = dri2_fallback_get_sync_values,
};
EGLBoolean
dri2_initialize_wayland(_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,
&registry_listener, dri2_dpy);
if (roundtrip(dri2_dpy) < 0 || dri2_dpy->wl_drm == NULL)
goto cleanup_dpy;
if (roundtrip(dri2_dpy) < 0 || dri2_dpy->fd == -1)
goto cleanup_drm;
if (roundtrip(dri2_dpy) < 0 || !dri2_dpy->authenticated)
goto cleanup_fd;
dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd, 0);
if (dri2_dpy->driver_name == NULL) {
_eglError(EGL_BAD_ALLOC, "DRI2: failed to get driver name");
goto cleanup_fd;
}
if (!dri2_load_driver(disp))
goto cleanup_driver_name;
dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER;
dri2_dpy->dri2_loader_extension.base.version = 3;
dri2_dpy->dri2_loader_extension.getBuffers = dri2_wl_get_buffers;
dri2_dpy->dri2_loader_extension.flushFrontBuffer = dri2_wl_flush_front_buffer;
dri2_dpy->dri2_loader_extension.getBuffersWithFormat =
dri2_wl_get_buffers_with_format;
dri2_dpy->extensions[0] = &dri2_dpy->dri2_loader_extension.base;
dri2_dpy->extensions[1] = &image_loader_extension.base;
dri2_dpy->extensions[2] = &image_lookup_extension.base;
dri2_dpy->extensions[3] = &use_invalidate.base;
dri2_dpy->extensions[4] = NULL;
dri2_dpy->swap_available = EGL_TRUE;
if (!dri2_create_screen(disp))
goto cleanup_driver;
dri2_wl_setup_swap_interval(dri2_dpy);
/* The server shouldn't advertise WL_DRM_CAPABILITY_PRIME if the driver
* doesn't have createImageFromFds, since we're using the same driver on
* both sides. We don't want crash if that happens anyway, so fall back to
* gem names if we don't have prime support. */
if (dri2_dpy->image->base.version < 7 ||
dri2_dpy->image->createImageFromFds == NULL)
dri2_dpy->capabilities &= ~WL_DRM_CAPABILITY_PRIME;
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);
}
disp->Extensions.WL_bind_wayland_display = EGL_TRUE;
disp->Extensions.WL_create_wayland_buffer_from_image = EGL_TRUE;
disp->Extensions.EXT_buffer_age = EGL_TRUE;
disp->Extensions.EXT_swap_buffers_with_damage = EGL_TRUE;
/* 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_display_vtbl;
return EGL_TRUE;
cleanup_driver:
dlclose(dri2_dpy->driver);
cleanup_driver_name:
free(dri2_dpy->driver_name);
cleanup_fd:
close(dri2_dpy->fd);
cleanup_drm:
free(dri2_dpy->device_name);
wl_drm_destroy(dri2_dpy->wl_drm);
cleanup_dpy:
free(dri2_dpy);
return EGL_FALSE;
}
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