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android / platform / external / mesa3d / 534ea2b5ba0282a350dc02d21bfbc8ffa1f8635d / . / src / egl / drivers / dri2 / platform_wayland.c
blob: fd4812a4feee2f022f1f761af6488199392ff43b [file] [log] [blame]
/*
* 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"),
* 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 <stdint.h>
#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 <sys/mman.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 = {
.done = 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 const struct wl_buffer_listener wl_buffer_listener = {
.release = 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);
}
static void
destroy_window_callback(void *data)
{
struct dri2_egl_surface *dri2_surf = data;
dri2_surf->wl_win = NULL;
}
/**
* Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
*/
static _EGLSurface *
dri2_wl_create_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;
const __DRIconfig *config;
(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_DRM_FORMAT_RGB565;
else if (conf->AlphaSize == 0)
dri2_surf->format = WL_DRM_FORMAT_XRGB8888;
else
dri2_surf->format = WL_DRM_FORMAT_ARGB8888;
if (!window) {
_eglError(EGL_BAD_NATIVE_WINDOW, "dri2_create_surface");
goto cleanup_surf;
}
dri2_surf->wl_win = window;
dri2_surf->wl_win->private = dri2_surf;
dri2_surf->wl_win->resize_callback = resize_callback;
dri2_surf->wl_win->destroy_window_callback = destroy_window_callback;
dri2_surf->base.Width = -1;
dri2_surf->base.Height = -1;
config = dri2_get_dri_config(dri2_conf, EGL_WINDOW_BIT,
dri2_surf->base.GLColorspace);
dri2_surf->dri_drawable =
(*dri2_dpy->dri2->createNewDrawable)(dri2_dpy->dri_screen, config,
dri2_surf);
if (dri2_surf->dri_drawable == NULL) {
_eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
goto cleanup_surf;
}
return &dri2_surf->base;
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, 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;
(*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);
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);
}
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);
if (dri2_surf->wl_win) {
dri2_surf->wl_win->private = NULL;
dri2_surf->wl_win->resize_callback = NULL;
dri2_surf->wl_win->destroy_window_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);
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;
}
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
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, use_flags;
unsigned int dri_image_format;
/* currently supports three WL DRM formats,
* WL_DRM_FORMAT_ARGB8888, WL_DRM_FORMAT_XRGB8888,
* and WL_DRM_FORMAT_RGB565
*/
switch (dri2_surf->format) {
case WL_DRM_FORMAT_ARGB8888:
dri_image_format = __DRI_IMAGE_FORMAT_ARGB8888;
break;
case WL_DRM_FORMAT_XRGB8888:
dri_image_format = __DRI_IMAGE_FORMAT_XRGB8888;
break;
case WL_DRM_FORMAT_RGB565:
dri_image_format = __DRI_IMAGE_FORMAT_RGB565;
break;
default:
/* format is not supported */
return -1;
}
/* There might be a buffer release already queued that wasn't processed */
wl_display_dispatch_queue_pending(dri2_dpy->wl_dpy, dri2_dpy->wl_queue);
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;
use_flags = __DRI_IMAGE_USE_SHARE | __DRI_IMAGE_USE_BACKBUFFER;
if (dri2_dpy->is_different_gpu &&
dri2_surf->back->linear_copy == NULL) {
dri2_surf->back->linear_copy =
dri2_dpy->image->createImage(dri2_dpy->dri_screen,
dri2_surf->base.Width,
dri2_surf->base.Height,
dri_image_format,
use_flags |
__DRI_IMAGE_USE_LINEAR,
NULL);
if (dri2_surf->back->linear_copy == 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,
dri2_dpy->is_different_gpu ?
0 : use_flags,
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.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);
if (dri2_dpy->is_different_gpu)
dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].linear_copy);
dri2_surf->color_buffers[i].wl_buffer = NULL;
dri2_surf->color_buffers[i].dri_image = NULL;
dri2_surf->color_buffers[i].linear_copy = 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)
{
struct dri2_egl_surface *dri2_surf = loaderPrivate;
unsigned int *attachments_with_format;
__DRIbuffer *buffer;
unsigned int bpp;
int i;
switch (dri2_surf->format) {
case WL_DRM_FORMAT_ARGB8888:
case WL_DRM_FORMAT_XRGB8888:
bpp = 32;
break;
case WL_DRM_FORMAT_RGB565:
bpp = 16;
break;
default:
/* format is not supported */
return NULL;
}
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] = bpp;
}
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 __DRIdri2LoaderExtension dri2_loader_extension = {
.base = { __DRI_DRI2_LOADER, 3 },
.getBuffers = dri2_wl_get_buffers,
.flushFrontBuffer = dri2_wl_flush_front_buffer,
.getBuffersWithFormat = dri2_wl_get_buffers_with_format,
};
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 = {
.done = 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);
__DRIimage *image;
int fd, stride, name;
if (dri2_surf->current->wl_buffer != NULL)
return;
if (dri2_dpy->is_different_gpu) {
image = dri2_surf->current->linear_copy;
} else {
image = dri2_surf->current->dri_image;
}
if (dri2_dpy->capabilities & WL_DRM_CAPABILITY_PRIME) {
dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_FD, &fd);
dri2_dpy->image->queryImage(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(image, __DRI_IMAGE_ATTRIB_NAME, &name);
dri2_dpy->image->queryImage(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);
}
static EGLBoolean
try_damage_buffer(struct dri2_egl_surface *dri2_surf,
const EGLint *rects,
EGLint n_rects)
{
/* The WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION macro and
* wl_proxy_get_version() were both introduced in wayland 1.10.
* Instead of bumping our wayland dependency we just make this
* function conditional on the required 1.10 features, falling
* back to old (correct but suboptimal) behaviour for older
* wayland.
*/
#ifdef WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION
int i;
if (wl_proxy_get_version((struct wl_proxy *) dri2_surf->wl_win->surface)
< WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION)
return EGL_FALSE;
for (i = 0; i < n_rects; i++) {
const int *rect = &rects[i * 4];
wl_surface_damage_buffer(dri2_surf->wl_win->surface,
rect[0],
dri2_surf->base.Height - rect[1] - rect[3],
rect[2], rect[3]);
}
return EGL_TRUE;
#endif
return EGL_FALSE;
}
/**
* 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);
int i;
while (dri2_surf->throttle_callback != NULL)
if (wl_display_dispatch_queue(dri2_dpy->wl_dpy,
dri2_dpy->wl_queue) == -1)
return -1;
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 the compositor doesn't support damage_buffer, we deliberately
* ignore the damage region and post maximum damage, due to
* https://bugs.freedesktop.org/78190 */
if (!n_rects || !try_damage_buffer(dri2_surf, rects, n_rects))
wl_surface_damage(dri2_surf->wl_win->surface,
0, 0, INT32_MAX, INT32_MAX);
if (dri2_dpy->is_different_gpu) {
_EGLContext *ctx = _eglGetCurrentContext();
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
dri2_dpy->image->blitImage(dri2_ctx->dri_context,
dri2_surf->current->linear_copy,
dri2_surf->current->dri_image,
0, 0, dri2_surf->base.Width,
dri2_surf->base.Height,
0, 0, dri2_surf->base.Width,
dri2_surf->base.Height, 0);
}
dri2_flush_drawable_for_swapbuffers(disp, draw);
(*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;
if (dri2_dpy->is_render_node) {
_eglLog(_EGL_WARNING, "wayland-egl: client asks server to "
"authenticate for render-nodes");
return 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;
dri2_dpy->fd = loader_open_device(dri2_dpy->device_name);
if (dri2_dpy->fd == -1) {
_eglLog(_EGL_WARNING, "wayland-egl: could not open %s (%s)",
dri2_dpy->device_name, strerror(errno));
return;
}
if (drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER) {
dri2_dpy->authenticated = 1;
} else {
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 = {
.device = drm_handle_device,
.format = drm_handle_format,
.authenticated = drm_handle_authenticated,
.capabilities = drm_handle_capabilities
};
static void
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;
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_drm = {
.global = registry_handle_global_drm,
.global_remove = 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,
.get_dri_drawable = dri2_surface_get_dri_drawable,
};
static const __DRIextension *dri2_loader_extensions[] = {
&dri2_loader_extension.base,
&image_loader_extension.base,
&image_lookup_extension.base,
&use_invalidate.base,
NULL,
};
static const __DRIextension *image_loader_extensions[] = {
&image_loader_extension.base,
&image_lookup_extension.base,
&use_invalidate.base,
NULL,
};
static EGLBoolean
dri2_wl_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
static const struct {
const char *format_name;
int has_format;
unsigned int rgba_masks[4];
} visuals[] = {
{ "XRGB8888", HAS_XRGB8888, { 0xff0000, 0xff00, 0x00ff, 0xff000000 } },
{ "ARGB8888", HAS_ARGB8888, { 0xff0000, 0xff00, 0x00ff, 0 } },
{ "RGB565", HAS_RGB565, { 0x00f800, 0x07e0, 0x001f, 0 } },
};
unsigned int format_count[ARRAY_SIZE(visuals)] = { 0 };
unsigned int count, i, j;
count = 0;
for (i = 0; dri2_dpy->driver_configs[i]; i++) {
for (j = 0; j < ARRAY_SIZE(visuals); j++) {
struct dri2_egl_config *dri2_conf;
if (!(dri2_dpy->formats & visuals[j].has_format))
continue;
dri2_conf = dri2_add_config(disp, dri2_dpy->driver_configs[i],
count + 1, EGL_WINDOW_BIT, NULL, visuals[j].rgba_masks);
if (dri2_conf) {
count++;
format_count[j]++;
}
}
}
for (i = 0; i < ARRAY_SIZE(format_count); i++) {
if (!format_count[i]) {
_eglLog(_EGL_DEBUG, "No DRI config supports native format %s",
visuals[i].format_name);
}
}
return (count != 0);
}
static EGLBoolean
dri2_initialize_wayland_drm(_EGLDriver *drv, _EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy;
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_drm, dri2_dpy);
if (roundtrip(dri2_dpy) < 0 || dri2_dpy->wl_drm == NULL)
goto cleanup_registry;
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->fd = loader_get_user_preferred_fd(dri2_dpy->fd,
&dri2_dpy->is_different_gpu);
if (dri2_dpy->is_different_gpu) {
free(dri2_dpy->device_name);
dri2_dpy->device_name = loader_get_device_name_for_fd(dri2_dpy->fd);
if (!dri2_dpy->device_name) {
_eglError(EGL_BAD_ALLOC, "wayland-egl: failed to get device name "
"for requested GPU");
goto cleanup_fd;
}
}
/* we have to do the check now, because loader_get_user_preferred_fd
* will return a render-node when the requested gpu is different
* to the server, but also if the client asks for the same gpu than
* the server by requesting its pci-id */
dri2_dpy->is_render_node = drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER;
dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
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;
/* render nodes cannot use Gem names, and thus do not support
* the __DRI_DRI2_LOADER extension */
if (!dri2_dpy->is_render_node)
dri2_dpy->loader_extensions = dri2_loader_extensions;
else
dri2_dpy->loader_extensions = image_loader_extensions;
if (!dri2_create_screen(disp))
goto cleanup_driver;
dri2_wl_setup_swap_interval(dri2_dpy);
/* To use Prime, we must have _DRI_IMAGE v7 at least.
* createImageFromFds support indicates that Prime export/import
* is supported by the driver. 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;
/* We cannot use Gem names with render-nodes, only prime fds (dma-buf).
* The server needs to accept them */
if (dri2_dpy->is_render_node &&
!(dri2_dpy->capabilities & WL_DRM_CAPABILITY_PRIME)) {
_eglLog(_EGL_WARNING, "wayland-egl: display is not render-node capable");
goto cleanup_screen;
}
if (dri2_dpy->is_different_gpu &&
(dri2_dpy->image->base.version < 9 ||
dri2_dpy->image->blitImage == NULL)) {
_eglLog(_EGL_WARNING, "wayland-egl: Different GPU selected, but the "
"Image extension in the driver is not "
"compatible. Version 9 or later and blitImage() "
"are required");
goto cleanup_screen;
}
if (!dri2_wl_add_configs_for_visuals(drv, disp)) {
_eglError(EGL_NOT_INITIALIZED, "DRI2: failed to add configs");
goto cleanup_screen;
}
dri2_set_WL_bind_wayland_display(drv, disp);
/* When cannot convert EGLImage to wl_buffer when on a different gpu,
* because the buffer of the EGLImage has likely a tiling mode the server
* gpu won't support. These is no way to check for now. Thus do not support the
* extension */
if (!dri2_dpy->is_different_gpu) {
disp->Extensions.WL_create_wayland_buffer_from_image = EGL_TRUE;
} else {
dri2_wl_display_vtbl.create_wayland_buffer_from_image =
dri2_fallback_create_wayland_buffer_from_image;
}
disp->Extensions.EXT_buffer_age = EGL_TRUE;
disp->Extensions.EXT_swap_buffers_with_damage = EGL_TRUE;
/* Fill vtbl last to prevent accidentally calling virtual function during
* initialization.
*/
dri2_dpy->vtbl = &dri2_wl_display_vtbl;
return EGL_TRUE;
cleanup_screen:
dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
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_registry:
wl_registry_destroy(dri2_dpy->wl_registry);
wl_event_queue_destroy(dri2_dpy->wl_queue);
cleanup_dpy:
free(dri2_dpy);
disp->DriverData = NULL;
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
*/
#ifndef HAVE_MKOSTEMP
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;
}
#endif
/*
* 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 */
/* There might be a buffer release already queued that wasn't processed */
wl_display_dispatch_queue_pending(dri2_dpy->wl_dpy, dri2_dpy->wl_queue);
/* 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);
while (dri2_surf->throttle_callback != NULL)
if (wl_display_dispatch_queue(dri2_dpy->wl_dpy,
dri2_dpy->wl_queue) == -1)
return;
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;
const __DRIconfig *config;
(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;
config = dri2_get_dri_config(dri2_conf, EGL_WINDOW_BIT,
dri2_surf->base.GLColorspace);
dri2_surf->dri_drawable =
(*dri2_dpy->swrast->createNewDrawable)(dri2_dpy->dri_screen,
config, dri2_surf);
if (dri2_surf->dri_drawable == NULL) {
_eglError(EGL_BAD_ALLOC, "swrast->createNewDrawable");
goto cleanup_surf;
}
dri2_wl_swap_interval(drv, disp, &dri2_surf->base,
dri2_dpy->default_swap_interval);
return &dri2_surf->base;
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 = {
.format = 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 = {
.global = registry_handle_global_swrast,
.global_remove = 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,
.get_dri_drawable = dri2_surface_get_dri_drawable,
};
static const __DRIswrastLoaderExtension swrast_loader_extension = {
.base = { __DRI_SWRAST_LOADER, 2 },
.getDrawableInfo = dri2_wl_swrast_get_drawable_info,
.putImage = dri2_wl_swrast_put_image,
.getImage = dri2_wl_swrast_get_image,
.putImage2 = dri2_wl_swrast_put_image2,
};
static const __DRIextension *swrast_loader_extensions[] = {
&swrast_loader_extension.base,
NULL,
};
static EGLBoolean
dri2_initialize_wayland_swrast(_EGLDriver *drv, _EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy;
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_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->fd = -1;
dri2_dpy->driver_name = strdup("swrast");
if (!dri2_load_driver_swrast(disp))
goto cleanup_shm;
dri2_dpy->loader_extensions = swrast_loader_extensions;
if (!dri2_create_screen(disp))
goto cleanup_driver;
dri2_wl_setup_swap_interval(dri2_dpy);
if (!dri2_wl_add_configs_for_visuals(drv, disp)) {
_eglError(EGL_NOT_INITIALIZED, "DRI2: failed to add configs");
goto cleanup_screen;
}
/* Fill vtbl last to prevent accidentally calling virtual function during
* initialization.
*/
dri2_dpy->vtbl = &dri2_wl_swrast_display_vtbl;
return EGL_TRUE;
cleanup_screen:
dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
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);
disp->DriverData = NULL;
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;
}