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chromium / chromiumos / third_party / mesa / d3e8bdd7b2ee26393812602e81c2e2195f272a2f / . / src / egl / drivers / dri2 / platform_x11.c
blob: 9068eb5f85aef453eb182ff3b673a356f316b553 [file] [log] [blame]
/*
* Copyright © 2011 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>
*/
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <limits.h>
#include <dlfcn.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#ifdef HAVE_LIBDRM
#include <xf86drm.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include "util/macros.h"
#include "egl_dri2.h"
#include "egl_dri2_fallbacks.h"
#include "loader.h"
#ifdef HAVE_DRI3
#include "platform_x11_dri3.h"
#endif
static EGLBoolean
dri2_x11_swap_interval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
EGLint interval);
static void
swrastCreateDrawable(struct dri2_egl_display * dri2_dpy,
struct dri2_egl_surface * dri2_surf)
{
uint32_t mask;
const uint32_t function = GXcopy;
uint32_t valgc[2];
/* create GC's */
dri2_surf->gc = xcb_generate_id(dri2_dpy->conn);
mask = XCB_GC_FUNCTION;
xcb_create_gc(dri2_dpy->conn, dri2_surf->gc, dri2_surf->drawable, mask, &function);
dri2_surf->swapgc = xcb_generate_id(dri2_dpy->conn);
mask = XCB_GC_FUNCTION | XCB_GC_GRAPHICS_EXPOSURES;
valgc[0] = function;
valgc[1] = False;
xcb_create_gc(dri2_dpy->conn, dri2_surf->swapgc, dri2_surf->drawable, mask, valgc);
switch (dri2_surf->depth) {
case 32:
case 24:
dri2_surf->bytes_per_pixel = 4;
break;
case 16:
dri2_surf->bytes_per_pixel = 2;
break;
case 8:
dri2_surf->bytes_per_pixel = 1;
break;
case 0:
dri2_surf->bytes_per_pixel = 0;
break;
default:
_eglLog(_EGL_WARNING, "unsupported depth %d", dri2_surf->depth);
}
}
static void
swrastDestroyDrawable(struct dri2_egl_display * dri2_dpy,
struct dri2_egl_surface * dri2_surf)
{
xcb_free_gc(dri2_dpy->conn, dri2_surf->gc);
xcb_free_gc(dri2_dpy->conn, dri2_surf->swapgc);
}
static void
swrastGetDrawableInfo(__DRIdrawable * draw,
int *x, int *y, int *w, int *h,
void *loaderPrivate)
{
struct dri2_egl_surface *dri2_surf = loaderPrivate;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display);
xcb_get_geometry_cookie_t cookie;
xcb_get_geometry_reply_t *reply;
xcb_generic_error_t *error;
*x = *y = *w = *h = 0;
cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->drawable);
reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error);
if (reply == NULL)
return;
if (error != NULL) {
_eglLog(_EGL_WARNING, "error in xcb_get_geometry");
free(error);
} else {
*x = reply->x;
*y = reply->y;
*w = reply->width;
*h = reply->height;
}
free(reply);
}
static void
swrastPutImage(__DRIdrawable * draw, int op,
int x, int y, int w, int h,
char *data, void *loaderPrivate)
{
struct dri2_egl_surface *dri2_surf = loaderPrivate;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display);
xcb_gcontext_t gc;
switch (op) {
case __DRI_SWRAST_IMAGE_OP_DRAW:
gc = dri2_surf->gc;
break;
case __DRI_SWRAST_IMAGE_OP_SWAP:
gc = dri2_surf->swapgc;
break;
default:
return;
}
xcb_put_image(dri2_dpy->conn, XCB_IMAGE_FORMAT_Z_PIXMAP, dri2_surf->drawable,
gc, w, h, x, y, 0, dri2_surf->depth,
w*h*dri2_surf->bytes_per_pixel, (const uint8_t *)data);
}
static void
swrastGetImage(__DRIdrawable * read,
int x, int y, int w, int h,
char *data, void *loaderPrivate)
{
struct dri2_egl_surface *dri2_surf = loaderPrivate;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display);
xcb_get_image_cookie_t cookie;
xcb_get_image_reply_t *reply;
xcb_generic_error_t *error;
cookie = xcb_get_image (dri2_dpy->conn, XCB_IMAGE_FORMAT_Z_PIXMAP,
dri2_surf->drawable, x, y, w, h, ~0);
reply = xcb_get_image_reply (dri2_dpy->conn, cookie, &error);
if (reply == NULL)
return;
if (error != NULL) {
_eglLog(_EGL_WARNING, "error in xcb_get_image");
free(error);
} else {
uint32_t bytes = xcb_get_image_data_length(reply);
uint8_t *idata = xcb_get_image_data(reply);
memcpy(data, idata, bytes);
}
free(reply);
}
static xcb_screen_t *
get_xcb_screen(xcb_screen_iterator_t iter, int screen)
{
for (; iter.rem; --screen, xcb_screen_next(&iter))
if (screen == 0)
return iter.data;
return NULL;
}
/**
* Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
*/
static _EGLSurface *
dri2_x11_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
_EGLConfig *conf, void *native_surface,
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 dri2_egl_surface *dri2_surf;
xcb_get_geometry_cookie_t cookie;
xcb_get_geometry_reply_t *reply;
xcb_generic_error_t *error;
xcb_drawable_t drawable;
const __DRIconfig *config;
STATIC_ASSERT(sizeof(uintptr_t) == sizeof(native_surface));
drawable = (uintptr_t) native_surface;
(void) drv;
dri2_surf = malloc(sizeof *dri2_surf);
if (!dri2_surf) {
_eglError(EGL_BAD_ALLOC, "dri2_create_surface");
return NULL;
}
if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
goto cleanup_surf;
dri2_surf->region = XCB_NONE;
if (type == EGL_PBUFFER_BIT) {
dri2_surf->drawable = xcb_generate_id(dri2_dpy->conn);
xcb_create_pixmap(dri2_dpy->conn, conf->BufferSize,
dri2_surf->drawable, dri2_dpy->screen->root,
dri2_surf->base.Width, dri2_surf->base.Height);
} else {
if (!drawable) {
if (type == EGL_WINDOW_BIT)
_eglError(EGL_BAD_NATIVE_WINDOW, "dri2_create_surface");
else
_eglError(EGL_BAD_NATIVE_PIXMAP, "dri2_create_surface");
goto cleanup_surf;
}
dri2_surf->drawable = drawable;
}
config = dri2_get_dri_config(dri2_conf, type,
dri2_surf->base.GLColorspace);
if (dri2_dpy->dri2) {
dri2_surf->dri_drawable =
dri2_dpy->dri2->createNewDrawable(dri2_dpy->dri_screen, config,
dri2_surf);
} else {
assert(dri2_dpy->swrast);
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, "dri2->createNewDrawable");
goto cleanup_pixmap;
}
if (type != EGL_PBUFFER_BIT) {
cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->drawable);
reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error);
if (error != NULL) {
if (error->error_code == BadAlloc)
_eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
else if (type == EGL_WINDOW_BIT)
_eglError(EGL_BAD_NATIVE_WINDOW, "xcb_get_geometry");
else
_eglError(EGL_BAD_NATIVE_PIXMAP, "xcb_get_geometry");
free(error);
goto cleanup_dri_drawable;
} else if (reply == NULL) {
_eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
goto cleanup_dri_drawable;
}
dri2_surf->base.Width = reply->width;
dri2_surf->base.Height = reply->height;
dri2_surf->depth = reply->depth;
free(reply);
}
if (dri2_dpy->dri2) {
xcb_void_cookie_t cookie;
int conn_error;
cookie = xcb_dri2_create_drawable_checked(dri2_dpy->conn,
dri2_surf->drawable);
error = xcb_request_check(dri2_dpy->conn, cookie);
conn_error = xcb_connection_has_error(dri2_dpy->conn);
if (conn_error || error != NULL) {
if (type == EGL_PBUFFER_BIT || conn_error || error->error_code == BadAlloc)
_eglError(EGL_BAD_ALLOC, "xcb_dri2_create_drawable_checked");
else if (type == EGL_WINDOW_BIT)
_eglError(EGL_BAD_NATIVE_WINDOW,
"xcb_dri2_create_drawable_checked");
else
_eglError(EGL_BAD_NATIVE_PIXMAP,
"xcb_dri2_create_drawable_checked");
free(error);
goto cleanup_dri_drawable;
}
} else {
if (type == EGL_PBUFFER_BIT) {
dri2_surf->depth = _eglGetConfigKey(conf, EGL_BUFFER_SIZE);
}
swrastCreateDrawable(dri2_dpy, dri2_surf);
}
/* we always copy the back buffer to front */
dri2_surf->base.PostSubBufferSupportedNV = EGL_TRUE;
return &dri2_surf->base;
cleanup_dri_drawable:
dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
cleanup_pixmap:
if (type == EGL_PBUFFER_BIT)
xcb_free_pixmap(dri2_dpy->conn, dri2_surf->drawable);
cleanup_surf:
free(dri2_surf);
return NULL;
}
/**
* Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
*/
static _EGLSurface *
dri2_x11_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_x11_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
native_window, attrib_list);
if (surf != NULL) {
/* When we first create the DRI2 drawable, its swap interval on the
* server side is 1.
*/
surf->SwapInterval = 1;
/* Override that with a driconf-set value. */
dri2_x11_swap_interval(drv, disp, surf, dri2_dpy->default_swap_interval);
}
return surf;
}
static _EGLSurface *
dri2_x11_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
_EGLConfig *conf, void *native_pixmap,
const EGLint *attrib_list)
{
return dri2_x11_create_surface(drv, disp, EGL_PIXMAP_BIT, conf,
native_pixmap, attrib_list);
}
static _EGLSurface *
dri2_x11_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
_EGLConfig *conf, const EGLint *attrib_list)
{
return dri2_x11_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
XCB_WINDOW_NONE, attrib_list);
}
static EGLBoolean
dri2_x11_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);
(void) drv;
dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
if (dri2_dpy->dri2) {
xcb_dri2_destroy_drawable (dri2_dpy->conn, dri2_surf->drawable);
} else {
assert(dri2_dpy->swrast);
swrastDestroyDrawable(dri2_dpy, dri2_surf);
}
if (surf->Type == EGL_PBUFFER_BIT)
xcb_free_pixmap (dri2_dpy->conn, dri2_surf->drawable);
free(surf);
return EGL_TRUE;
}
/**
* Function utilizes swrastGetDrawableInfo to get surface
* geometry from x server and calls default query surface
* implementation that returns the updated values.
*
* In case of errors we still return values that we currently
* have.
*/
static EGLBoolean
dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy,
_EGLSurface *surf, EGLint attribute,
EGLint *value)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
int x, y, w = -1, h = -1;
__DRIdrawable *drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
switch (attribute) {
case EGL_WIDTH:
case EGL_HEIGHT:
swrastGetDrawableInfo(drawable, &x, &y, &w, &h, dri2_surf);
if (w != -1 && h != -1) {
surf->Width = w;
surf->Height = h;
}
break;
default:
break;
}
return _eglQuerySurface(drv, dpy, surf, attribute, value);
}
/**
* Process list of buffer received from the server
*
* Processes the list of buffers received in a reply from the server to either
* \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat.
*/
static void
dri2_x11_process_buffers(struct dri2_egl_surface *dri2_surf,
xcb_dri2_dri2_buffer_t *buffers, unsigned count)
{
struct dri2_egl_display *dri2_dpy =
dri2_egl_display(dri2_surf->base.Resource.Display);
xcb_rectangle_t rectangle;
dri2_surf->have_fake_front = false;
/* This assumes the DRI2 buffer attachment tokens matches the
* __DRIbuffer tokens. */
for (unsigned i = 0; i < count; i++) {
dri2_surf->buffers[i].attachment = buffers[i].attachment;
dri2_surf->buffers[i].name = buffers[i].name;
dri2_surf->buffers[i].pitch = buffers[i].pitch;
dri2_surf->buffers[i].cpp = buffers[i].cpp;
dri2_surf->buffers[i].flags = buffers[i].flags;
/* We only use the DRI drivers single buffer configs. This
* means that if we try to render to a window, DRI2 will give us
* the fake front buffer, which we'll use as a back buffer.
* Note that EGL doesn't require that several clients rendering
* to the same window must see the same aux buffers. */
if (dri2_surf->buffers[i].attachment == __DRI_BUFFER_FAKE_FRONT_LEFT)
dri2_surf->have_fake_front = true;
}
if (dri2_surf->region != XCB_NONE)
xcb_xfixes_destroy_region(dri2_dpy->conn, dri2_surf->region);
rectangle.x = 0;
rectangle.y = 0;
rectangle.width = dri2_surf->base.Width;
rectangle.height = dri2_surf->base.Height;
dri2_surf->region = xcb_generate_id(dri2_dpy->conn);
xcb_xfixes_create_region(dri2_dpy->conn, dri2_surf->region, 1, &rectangle);
}
static __DRIbuffer *
dri2_x11_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;
struct dri2_egl_display *dri2_dpy =
dri2_egl_display(dri2_surf->base.Resource.Display);
xcb_dri2_dri2_buffer_t *buffers;
xcb_dri2_get_buffers_reply_t *reply;
xcb_dri2_get_buffers_cookie_t cookie;
(void) driDrawable;
cookie = xcb_dri2_get_buffers_unchecked (dri2_dpy->conn,
dri2_surf->drawable,
count, count, attachments);
reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn, cookie, NULL);
if (reply == NULL)
return NULL;
buffers = xcb_dri2_get_buffers_buffers (reply);
if (buffers == NULL)
return NULL;
*out_count = reply->count;
dri2_surf->base.Width = *width = reply->width;
dri2_surf->base.Height = *height = reply->height;
dri2_x11_process_buffers(dri2_surf, buffers, *out_count);
free(reply);
return dri2_surf->buffers;
}
static __DRIbuffer *
dri2_x11_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;
struct dri2_egl_display *dri2_dpy =
dri2_egl_display(dri2_surf->base.Resource.Display);
xcb_dri2_dri2_buffer_t *buffers;
xcb_dri2_get_buffers_with_format_reply_t *reply;
xcb_dri2_get_buffers_with_format_cookie_t cookie;
xcb_dri2_attach_format_t *format_attachments;
(void) driDrawable;
format_attachments = (xcb_dri2_attach_format_t *) attachments;
cookie = xcb_dri2_get_buffers_with_format_unchecked (dri2_dpy->conn,
dri2_surf->drawable,
count, count,
format_attachments);
reply = xcb_dri2_get_buffers_with_format_reply (dri2_dpy->conn,
cookie, NULL);
if (reply == NULL)
return NULL;
buffers = xcb_dri2_get_buffers_with_format_buffers (reply);
dri2_surf->base.Width = *width = reply->width;
dri2_surf->base.Height = *height = reply->height;
*out_count = reply->count;
dri2_x11_process_buffers(dri2_surf, buffers, *out_count);
free(reply);
return dri2_surf->buffers;
}
static void
dri2_x11_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
{
(void) driDrawable;
/* FIXME: Does EGL support front buffer rendering at all? */
#if 0
struct dri2_egl_surface *dri2_surf = loaderPrivate;
dri2WaitGL(dri2_surf);
#else
(void) loaderPrivate;
#endif
}
static int
dri2_x11_do_authenticate(struct dri2_egl_display *dri2_dpy, uint32_t id)
{
xcb_dri2_authenticate_reply_t *authenticate;
xcb_dri2_authenticate_cookie_t authenticate_cookie;
int ret = 0;
authenticate_cookie =
xcb_dri2_authenticate_unchecked(dri2_dpy->conn, dri2_dpy->screen->root, id);
authenticate =
xcb_dri2_authenticate_reply(dri2_dpy->conn, authenticate_cookie, NULL);
if (authenticate == NULL || !authenticate->authenticated)
ret = -1;
free(authenticate);
return ret;
}
static EGLBoolean
dri2_x11_local_authenticate(struct dri2_egl_display *dri2_dpy)
{
#ifdef HAVE_LIBDRM
drm_magic_t magic;
if (drmGetMagic(dri2_dpy->fd, &magic)) {
_eglLog(_EGL_WARNING, "DRI2: failed to get drm magic");
return EGL_FALSE;
}
if (dri2_x11_do_authenticate(dri2_dpy, magic) < 0) {
_eglLog(_EGL_WARNING, "DRI2: failed to authenticate");
return EGL_FALSE;
}
#endif
return EGL_TRUE;
}
static EGLBoolean
dri2_x11_connect(struct dri2_egl_display *dri2_dpy)
{
xcb_xfixes_query_version_reply_t *xfixes_query;
xcb_xfixes_query_version_cookie_t xfixes_query_cookie;
xcb_dri2_query_version_reply_t *dri2_query;
xcb_dri2_query_version_cookie_t dri2_query_cookie;
xcb_dri2_connect_reply_t *connect;
xcb_dri2_connect_cookie_t connect_cookie;
xcb_generic_error_t *error;
char *driver_name, *loader_driver_name, *device_name;
const xcb_query_extension_reply_t *extension;
xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id);
xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id);
extension = xcb_get_extension_data(dri2_dpy->conn, &xcb_xfixes_id);
if (!(extension && extension->present))
return EGL_FALSE;
extension = xcb_get_extension_data(dri2_dpy->conn, &xcb_dri2_id);
if (!(extension && extension->present))
return EGL_FALSE;
xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->conn,
XCB_XFIXES_MAJOR_VERSION,
XCB_XFIXES_MINOR_VERSION);
dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->conn,
XCB_DRI2_MAJOR_VERSION,
XCB_DRI2_MINOR_VERSION);
connect_cookie = xcb_dri2_connect_unchecked(dri2_dpy->conn, dri2_dpy->screen->root,
XCB_DRI2_DRIVER_TYPE_DRI);
xfixes_query =
xcb_xfixes_query_version_reply (dri2_dpy->conn,
xfixes_query_cookie, &error);
if (xfixes_query == NULL ||
error != NULL || xfixes_query->major_version < 2) {
_eglLog(_EGL_WARNING, "DRI2: failed to query xfixes version");
free(error);
return EGL_FALSE;
}
free(xfixes_query);
dri2_query =
xcb_dri2_query_version_reply (dri2_dpy->conn, dri2_query_cookie, &error);
if (dri2_query == NULL || error != NULL) {
_eglLog(_EGL_WARNING, "DRI2: failed to query version");
free(error);
return EGL_FALSE;
}
dri2_dpy->dri2_major = dri2_query->major_version;
dri2_dpy->dri2_minor = dri2_query->minor_version;
free(dri2_query);
connect = xcb_dri2_connect_reply (dri2_dpy->conn, connect_cookie, NULL);
if (connect == NULL ||
connect->driver_name_length + connect->device_name_length == 0) {
_eglLog(_EGL_WARNING, "DRI2: failed to authenticate");
return EGL_FALSE;
}
device_name = xcb_dri2_connect_device_name (connect);
dri2_dpy->fd = loader_open_device(device_name);
if (dri2_dpy->fd == -1) {
_eglLog(_EGL_WARNING,
"DRI2: could not open %s (%s)", device_name, strerror(errno));
free(connect);
return EGL_FALSE;
}
if (!dri2_x11_local_authenticate(dri2_dpy)) {
close(dri2_dpy->fd);
free(connect);
return EGL_FALSE;
}
driver_name = xcb_dri2_connect_driver_name (connect);
/* If Mesa knows about the appropriate driver for this fd, then trust it.
* Otherwise, default to the server's value.
*/
loader_driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
if (loader_driver_name) {
dri2_dpy->driver_name = loader_driver_name;
} else {
dri2_dpy->driver_name =
strndup(driver_name,
xcb_dri2_connect_driver_name_length(connect));
}
if (dri2_dpy->driver_name == NULL) {
close(dri2_dpy->fd);
free(dri2_dpy->driver_name);
free(connect);
return EGL_FALSE;
}
#ifdef HAVE_WAYLAND_PLATFORM
dri2_dpy->device_name =
strndup(device_name,
xcb_dri2_connect_device_name_length(connect));
#endif
free(connect);
return EGL_TRUE;
}
static int
dri2_x11_authenticate(_EGLDisplay *disp, uint32_t id)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
return dri2_x11_do_authenticate(dri2_dpy, id);
}
static EGLBoolean
dri2_x11_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
_EGLDisplay *disp, bool supports_preserved)
{
xcb_depth_iterator_t d;
xcb_visualtype_t *visuals;
int config_count = 0;
EGLint surface_type;
d = xcb_screen_allowed_depths_iterator(dri2_dpy->screen);
surface_type =
EGL_WINDOW_BIT |
EGL_PIXMAP_BIT |
EGL_PBUFFER_BIT;
if (supports_preserved)
surface_type |= EGL_SWAP_BEHAVIOR_PRESERVED_BIT;
while (d.rem > 0) {
EGLBoolean class_added[6] = { 0, };
visuals = xcb_depth_visuals(d.data);
for (int i = 0; i < xcb_depth_visuals_length(d.data); i++) {
if (class_added[visuals[i]._class])
continue;
class_added[visuals[i]._class] = EGL_TRUE;
for (int j = 0; dri2_dpy->driver_configs[j]; j++) {
struct dri2_egl_config *dri2_conf;
const __DRIconfig *config = dri2_dpy->driver_configs[j];
const EGLint config_attrs[] = {
EGL_NATIVE_VISUAL_ID, visuals[i].visual_id,
EGL_NATIVE_VISUAL_TYPE, visuals[i]._class,
EGL_NONE
};
unsigned int rgba_masks[4] = {
visuals[i].red_mask,
visuals[i].green_mask,
visuals[i].blue_mask,
0,
};
dri2_conf = dri2_add_config(disp, config, config_count + 1,
surface_type, config_attrs,
rgba_masks);
if (dri2_conf)
if (dri2_conf->base.ConfigID == config_count + 1)
config_count++;
/* Allow a 24-bit RGB visual to match a 32-bit RGBA EGLConfig.
* Otherwise it will only match a 32-bit RGBA visual. On a
* composited window manager on X11, this will make all of the
* EGLConfigs with destination alpha get blended by the
* compositor. This is probably not what the application
* wants... especially on drivers that only have 32-bit RGBA
* EGLConfigs! */
if (d.data->depth == 24) {
rgba_masks[3] =
~(rgba_masks[0] | rgba_masks[1] | rgba_masks[2]);
dri2_conf = dri2_add_config(disp, config, config_count + 1,
surface_type, config_attrs,
rgba_masks);
if (dri2_conf)
if (dri2_conf->base.ConfigID == config_count + 1)
config_count++;
}
}
}
xcb_depth_next(&d);
}
if (!config_count) {
_eglLog(_EGL_WARNING, "DRI2: failed to create any config");
return EGL_FALSE;
}
return EGL_TRUE;
}
static EGLBoolean
dri2_copy_region(_EGLDriver *drv, _EGLDisplay *disp,
_EGLSurface *draw, xcb_xfixes_region_t region)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
enum xcb_dri2_attachment_t render_attachment;
xcb_dri2_copy_region_cookie_t cookie;
/* No-op for a pixmap or pbuffer surface */
if (draw->Type == EGL_PIXMAP_BIT || draw->Type == EGL_PBUFFER_BIT)
return EGL_TRUE;
dri2_dpy->flush->flush(dri2_surf->dri_drawable);
if (dri2_surf->have_fake_front)
render_attachment = XCB_DRI2_ATTACHMENT_BUFFER_FAKE_FRONT_LEFT;
else
render_attachment = XCB_DRI2_ATTACHMENT_BUFFER_BACK_LEFT;
cookie = xcb_dri2_copy_region_unchecked(dri2_dpy->conn,
dri2_surf->drawable,
region,
XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT,
render_attachment);
free(xcb_dri2_copy_region_reply(dri2_dpy->conn, cookie, NULL));
return EGL_TRUE;
}
static int64_t
dri2_x11_swap_buffers_msc(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw,
int64_t msc, int64_t divisor, int64_t remainder)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
uint32_t msc_hi = msc >> 32;
uint32_t msc_lo = msc & 0xffffffff;
uint32_t divisor_hi = divisor >> 32;
uint32_t divisor_lo = divisor & 0xffffffff;
uint32_t remainder_hi = remainder >> 32;
uint32_t remainder_lo = remainder & 0xffffffff;
xcb_dri2_swap_buffers_cookie_t cookie;
xcb_dri2_swap_buffers_reply_t *reply;
int64_t swap_count = -1;
/* No-op for a pixmap or pbuffer surface */
if (draw->Type == EGL_PIXMAP_BIT || draw->Type == EGL_PBUFFER_BIT)
return 0;
if (draw->SwapBehavior == EGL_BUFFER_PRESERVED || !dri2_dpy->swap_available)
return dri2_copy_region(drv, disp, draw, dri2_surf->region) ? 0 : -1;
dri2_flush_drawable_for_swapbuffers(disp, draw);
cookie = xcb_dri2_swap_buffers_unchecked(dri2_dpy->conn, dri2_surf->drawable,
msc_hi, msc_lo, divisor_hi, divisor_lo, remainder_hi, remainder_lo);
reply = xcb_dri2_swap_buffers_reply(dri2_dpy->conn, cookie, NULL);
if (reply) {
swap_count = (((int64_t)reply->swap_hi) << 32) | reply->swap_lo;
free(reply);
}
/* Since we aren't watching for the server's invalidate events like we're
* supposed to (due to XCB providing no mechanism for filtering the events
* the way xlib does), and SwapBuffers is a common cause of invalidate
* events, just shove one down to the driver, even though we haven't told
* the driver that we're the kind of loader that provides reliable
* invalidate events. This causes the driver to request buffers again at
* its next draw, so that we get the correct buffers if a pageflip
* happened. The driver should still be using the viewport hack to catch
* window resizes.
*/
if (dri2_dpy->flush->base.version >= 3 && dri2_dpy->flush->invalidate)
dri2_dpy->flush->invalidate(dri2_surf->dri_drawable);
return swap_count;
}
static EGLBoolean
dri2_x11_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);
if (!dri2_dpy->flush) {
dri2_dpy->core->swapBuffers(dri2_surf->dri_drawable);
return EGL_TRUE;
}
if (dri2_x11_swap_buffers_msc(drv, disp, draw, 0, 0, 0) == -1) {
/* Swap failed with a window drawable. */
return _eglError(EGL_BAD_NATIVE_WINDOW, __func__);
}
return EGL_TRUE;
}
static EGLBoolean
dri2_x11_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *disp,
_EGLSurface *draw,
EGLint numRects, const EGLint *rects)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
EGLBoolean ret;
xcb_xfixes_region_t region;
xcb_rectangle_t rectangles[16];
if (numRects > (int)ARRAY_SIZE(rectangles))
return dri2_copy_region(drv, disp, draw, dri2_surf->region);
for (int i = 0; i < numRects; i++) {
rectangles[i].x = rects[i * 4];
rectangles[i].y = dri2_surf->base.Height - rects[i * 4 + 1] - rects[i * 4 + 3];
rectangles[i].width = rects[i * 4 + 2];
rectangles[i].height = rects[i * 4 + 3];
}
region = xcb_generate_id(dri2_dpy->conn);
xcb_xfixes_create_region(dri2_dpy->conn, region, numRects, rectangles);
ret = dri2_copy_region(drv, disp, draw, region);
xcb_xfixes_destroy_region(dri2_dpy->conn, region);
return ret;
}
static EGLBoolean
dri2_x11_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw,
EGLint x, EGLint y, EGLint width, EGLint height)
{
const EGLint rect[4] = { x, y, width, height };
if (x < 0 || y < 0 || width < 0 || height < 0)
_eglError(EGL_BAD_PARAMETER, "eglPostSubBufferNV");
return dri2_x11_swap_buffers_region(drv, disp, draw, 1, rect);
}
static EGLBoolean
dri2_x11_swap_interval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
EGLint interval)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
if (dri2_dpy->swap_available)
xcb_dri2_swap_interval(dri2_dpy->conn, dri2_surf->drawable, interval);
return EGL_TRUE;
}
static EGLBoolean
dri2_x11_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
void *native_pixmap_target)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
xcb_gcontext_t gc;
xcb_pixmap_t target;
STATIC_ASSERT(sizeof(uintptr_t) == sizeof(native_pixmap_target));
target = (uintptr_t) native_pixmap_target;
(void) drv;
dri2_dpy->flush->flush(dri2_surf->dri_drawable);
gc = xcb_generate_id(dri2_dpy->conn);
xcb_create_gc(dri2_dpy->conn, gc, target, 0, NULL);
xcb_copy_area(dri2_dpy->conn,
dri2_surf->drawable,
target,
gc,
0, 0,
0, 0,
dri2_surf->base.Width,
dri2_surf->base.Height);
xcb_free_gc(dri2_dpy->conn, gc);
return EGL_TRUE;
}
static _EGLImage *
dri2_create_image_khr_pixmap(_EGLDisplay *disp, _EGLContext *ctx,
EGLClientBuffer buffer, const EGLint *attr_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_image *dri2_img;
unsigned int attachments[1];
xcb_drawable_t drawable;
xcb_dri2_get_buffers_cookie_t buffers_cookie;
xcb_dri2_get_buffers_reply_t *buffers_reply;
xcb_dri2_dri2_buffer_t *buffers;
xcb_get_geometry_cookie_t geometry_cookie;
xcb_get_geometry_reply_t *geometry_reply;
xcb_generic_error_t *error;
int stride, format;
(void) ctx;
drawable = (xcb_drawable_t) (uintptr_t) buffer;
xcb_dri2_create_drawable (dri2_dpy->conn, drawable);
attachments[0] = XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT;
buffers_cookie =
xcb_dri2_get_buffers_unchecked (dri2_dpy->conn,
drawable, 1, 1, attachments);
geometry_cookie = xcb_get_geometry (dri2_dpy->conn, drawable);
buffers_reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn,
buffers_cookie, NULL);
if (buffers_reply == NULL)
return NULL;
buffers = xcb_dri2_get_buffers_buffers (buffers_reply);
if (buffers == NULL) {
return NULL;
}
geometry_reply = xcb_get_geometry_reply (dri2_dpy->conn,
geometry_cookie, &error);
if (geometry_reply == NULL || error != NULL) {
_eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
free(error);
free(buffers_reply);
return NULL;
}
switch (geometry_reply->depth) {
case 16:
format = __DRI_IMAGE_FORMAT_RGB565;
break;
case 24:
format = __DRI_IMAGE_FORMAT_XRGB8888;
break;
case 32:
format = __DRI_IMAGE_FORMAT_ARGB8888;
break;
default:
_eglError(EGL_BAD_PARAMETER,
"dri2_create_image_khr: unsupported pixmap depth");
free(buffers_reply);
free(geometry_reply);
return NULL;
}
dri2_img = malloc(sizeof *dri2_img);
if (!dri2_img) {
free(buffers_reply);
free(geometry_reply);
_eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
_eglInitImage(&dri2_img->base, disp);
stride = buffers[0].pitch / buffers[0].cpp;
dri2_img->dri_image =
dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
buffers_reply->width,
buffers_reply->height,
format,
buffers[0].name,
stride,
dri2_img);
free(buffers_reply);
free(geometry_reply);
return &dri2_img->base;
}
static _EGLImage *
dri2_x11_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
_EGLContext *ctx, EGLenum target,
EGLClientBuffer buffer, const EGLint *attr_list)
{
(void) drv;
switch (target) {
case EGL_NATIVE_PIXMAP_KHR:
return dri2_create_image_khr_pixmap(disp, ctx, buffer, attr_list);
default:
return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list);
}
}
static EGLBoolean
dri2_x11_get_sync_values(_EGLDisplay *display, _EGLSurface *surface,
EGLuint64KHR *ust, EGLuint64KHR *msc,
EGLuint64KHR *sbc)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(display);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surface);
xcb_dri2_get_msc_cookie_t cookie;
xcb_dri2_get_msc_reply_t *reply;
cookie = xcb_dri2_get_msc(dri2_dpy->conn, dri2_surf->drawable);
reply = xcb_dri2_get_msc_reply(dri2_dpy->conn, cookie, NULL);
if (!reply)
return _eglError(EGL_BAD_ACCESS, __func__);
*ust = ((EGLuint64KHR) reply->ust_hi << 32) | reply->ust_lo;
*msc = ((EGLuint64KHR) reply->msc_hi << 32) | reply->msc_lo;
*sbc = ((EGLuint64KHR) reply->sbc_hi << 32) | reply->sbc_lo;
free(reply);
return EGL_TRUE;
}
static const struct dri2_egl_display_vtbl dri2_x11_swrast_display_vtbl = {
.authenticate = NULL,
.create_window_surface = dri2_x11_create_window_surface,
.create_pixmap_surface = dri2_x11_create_pixmap_surface,
.create_pbuffer_surface = dri2_x11_create_pbuffer_surface,
.destroy_surface = dri2_x11_destroy_surface,
.create_image = dri2_fallback_create_image_khr,
.swap_buffers = dri2_x11_swap_buffers,
.set_damage_region = dri2_fallback_set_damage_region,
.swap_buffers_region = dri2_fallback_swap_buffers_region,
.post_sub_buffer = dri2_fallback_post_sub_buffer,
.copy_buffers = dri2_x11_copy_buffers,
.query_buffer_age = dri2_fallback_query_buffer_age,
.query_surface = dri2_query_surface,
.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 struct dri2_egl_display_vtbl dri2_x11_display_vtbl = {
.authenticate = dri2_x11_authenticate,
.create_window_surface = dri2_x11_create_window_surface,
.create_pixmap_surface = dri2_x11_create_pixmap_surface,
.create_pbuffer_surface = dri2_x11_create_pbuffer_surface,
.destroy_surface = dri2_x11_destroy_surface,
.create_image = dri2_x11_create_image_khr,
.swap_interval = dri2_x11_swap_interval,
.swap_buffers = dri2_x11_swap_buffers,
.swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
.swap_buffers_region = dri2_x11_swap_buffers_region,
.set_damage_region = dri2_fallback_set_damage_region,
.post_sub_buffer = dri2_x11_post_sub_buffer,
.copy_buffers = dri2_x11_copy_buffers,
.query_buffer_age = dri2_fallback_query_buffer_age,
.query_surface = dri2_query_surface,
.create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image,
.get_sync_values = dri2_x11_get_sync_values,
.get_dri_drawable = dri2_surface_get_dri_drawable,
};
static const __DRIswrastLoaderExtension swrast_loader_extension = {
.base = { __DRI_SWRAST_LOADER, 1 },
.getDrawableInfo = swrastGetDrawableInfo,
.putImage = swrastPutImage,
.getImage = swrastGetImage,
};
static const __DRIextension *swrast_loader_extensions[] = {
&swrast_loader_extension.base,
NULL,
};
static EGLBoolean
dri2_get_xcb_connection(_EGLDriver *drv, _EGLDisplay *disp,
struct dri2_egl_display *dri2_dpy)
{
xcb_screen_iterator_t s;
int screen = (uintptr_t)disp->Options.Platform;
const char *msg;
disp->DriverData = (void *) dri2_dpy;
if (disp->PlatformDisplay == NULL) {
dri2_dpy->conn = xcb_connect(NULL, &screen);
dri2_dpy->own_device = true;
} else {
Display *dpy = disp->PlatformDisplay;
dri2_dpy->conn = XGetXCBConnection(dpy);
screen = DefaultScreen(dpy);
}
if (!dri2_dpy->conn || xcb_connection_has_error(dri2_dpy->conn)) {
msg = "xcb_connect failed";
goto disconnect;
}
s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
dri2_dpy->screen = get_xcb_screen(s, screen);
if (!dri2_dpy->screen) {
msg = "failed to get xcb screen";
goto disconnect;
}
return EGL_TRUE;
disconnect:
if (disp->PlatformDisplay == NULL)
xcb_disconnect(dri2_dpy->conn);
return _eglError(EGL_BAD_ALLOC, msg);
}
static EGLBoolean
dri2_initialize_x11_swrast(_EGLDriver *drv, _EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy;
dri2_dpy = calloc(1, sizeof *dri2_dpy);
if (!dri2_dpy)
return _eglError(EGL_BAD_ALLOC, "eglInitialize");
dri2_dpy->fd = -1;
if (!dri2_get_xcb_connection(drv, disp, dri2_dpy))
goto cleanup;
/*
* Every hardware driver_name is set using strdup. Doing the same in
* here will allow is to simply free the memory at dri2_terminate().
*/
dri2_dpy->driver_name = strdup("swrast");
if (!dri2_load_driver_swrast(disp))
goto cleanup;
dri2_dpy->loader_extensions = swrast_loader_extensions;
if (!dri2_create_screen(disp))
goto cleanup;
if (!dri2_setup_extensions(disp))
goto cleanup;
dri2_setup_screen(disp);
if (!dri2_x11_add_configs_for_visuals(dri2_dpy, disp, true))
goto cleanup;
/* Fill vtbl last to prevent accidentally calling virtual function during
* initialization.
*/
dri2_dpy->vtbl = &dri2_x11_swrast_display_vtbl;
return EGL_TRUE;
cleanup:
dri2_display_destroy(disp);
return EGL_FALSE;
}
static void
dri2_x11_setup_swap_interval(struct dri2_egl_display *dri2_dpy)
{
GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
int arbitrary_max_interval = 1000;
/* default behavior for no SwapBuffers support: no vblank syncing
* either.
*/
dri2_dpy->min_swap_interval = 0;
dri2_dpy->max_swap_interval = 0;
dri2_dpy->default_swap_interval = 0;
if (!dri2_dpy->swap_available)
return;
/* If we do have swapbuffers, then we can support pretty much any swap
* interval, but we allow driconf to override applications.
*/
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 = arbitrary_max_interval;
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 = arbitrary_max_interval;
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 = arbitrary_max_interval;
dri2_dpy->default_swap_interval = 1;
break;
}
}
#ifdef HAVE_DRI3
static const __DRIextension *dri3_image_loader_extensions[] = {
&dri3_image_loader_extension.base,
&image_lookup_extension.base,
&use_invalidate.base,
NULL,
};
static EGLBoolean
dri2_initialize_x11_dri3(_EGLDriver *drv, _EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy;
dri2_dpy = calloc(1, sizeof *dri2_dpy);
if (!dri2_dpy)
return _eglError(EGL_BAD_ALLOC, "eglInitialize");
dri2_dpy->fd = -1;
if (!dri2_get_xcb_connection(drv, disp, dri2_dpy))
goto cleanup;
if (!dri3_x11_connect(dri2_dpy))
goto cleanup;
if (!dri2_load_driver_dri3(disp))
goto cleanup;
dri2_dpy->loader_extensions = dri3_image_loader_extensions;
dri2_dpy->swap_available = true;
dri2_dpy->invalidate_available = true;
if (!dri2_create_screen(disp))
goto cleanup;
if (!dri2_setup_extensions(disp))
goto cleanup;
dri2_setup_screen(disp);
dri2_x11_setup_swap_interval(dri2_dpy);
if (!dri2_dpy->is_different_gpu)
disp->Extensions.KHR_image_pixmap = EGL_TRUE;
disp->Extensions.NOK_texture_from_pixmap = EGL_TRUE;
disp->Extensions.CHROMIUM_sync_control = EGL_TRUE;
disp->Extensions.EXT_buffer_age = EGL_TRUE;
dri2_set_WL_bind_wayland_display(drv, disp);
if (!dri2_x11_add_configs_for_visuals(dri2_dpy, disp, false))
goto cleanup;
dri2_dpy->loader_dri3_ext.core = dri2_dpy->core;
dri2_dpy->loader_dri3_ext.image_driver = dri2_dpy->image_driver;
dri2_dpy->loader_dri3_ext.flush = dri2_dpy->flush;
dri2_dpy->loader_dri3_ext.tex_buffer = dri2_dpy->tex_buffer;
dri2_dpy->loader_dri3_ext.image = dri2_dpy->image;
dri2_dpy->loader_dri3_ext.config = dri2_dpy->config;
/* Fill vtbl last to prevent accidentally calling virtual function during
* initialization.
*/
dri2_dpy->vtbl = &dri3_x11_display_vtbl;
_eglLog(_EGL_INFO, "Using DRI3");
return EGL_TRUE;
cleanup:
dri2_display_destroy(disp);
return EGL_FALSE;
}
#endif
static const __DRIdri2LoaderExtension dri2_loader_extension_old = {
.base = { __DRI_DRI2_LOADER, 2 },
.getBuffers = dri2_x11_get_buffers,
.flushFrontBuffer = dri2_x11_flush_front_buffer,
.getBuffersWithFormat = NULL,
};
static const __DRIdri2LoaderExtension dri2_loader_extension = {
.base = { __DRI_DRI2_LOADER, 3 },
.getBuffers = dri2_x11_get_buffers,
.flushFrontBuffer = dri2_x11_flush_front_buffer,
.getBuffersWithFormat = dri2_x11_get_buffers_with_format,
};
static const __DRIextension *dri2_loader_extensions_old[] = {
&dri2_loader_extension_old.base,
&image_lookup_extension.base,
&background_callable_extension.base,
NULL,
};
static const __DRIextension *dri2_loader_extensions[] = {
&dri2_loader_extension.base,
&image_lookup_extension.base,
&background_callable_extension.base,
NULL,
};
static EGLBoolean
dri2_initialize_x11_dri2(_EGLDriver *drv, _EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy;
dri2_dpy = calloc(1, sizeof *dri2_dpy);
if (!dri2_dpy)
return _eglError(EGL_BAD_ALLOC, "eglInitialize");
dri2_dpy->fd = -1;
if (!dri2_get_xcb_connection(drv, disp, dri2_dpy))
goto cleanup;
if (!dri2_x11_connect(dri2_dpy))
goto cleanup;
if (!dri2_load_driver(disp))
goto cleanup;
if (dri2_dpy->dri2_minor >= 1)
dri2_dpy->loader_extensions = dri2_loader_extensions;
else
dri2_dpy->loader_extensions = dri2_loader_extensions_old;
dri2_dpy->swap_available = (dri2_dpy->dri2_minor >= 2);
dri2_dpy->invalidate_available = (dri2_dpy->dri2_minor >= 3);
if (!dri2_create_screen(disp))
goto cleanup;
if (!dri2_setup_extensions(disp))
goto cleanup;
dri2_setup_screen(disp);
dri2_x11_setup_swap_interval(dri2_dpy);
disp->Extensions.KHR_image_pixmap = EGL_TRUE;
disp->Extensions.NOK_swap_region = EGL_TRUE;
disp->Extensions.NOK_texture_from_pixmap = EGL_TRUE;
disp->Extensions.NV_post_sub_buffer = EGL_TRUE;
disp->Extensions.CHROMIUM_sync_control = EGL_TRUE;
dri2_set_WL_bind_wayland_display(drv, disp);
if (!dri2_x11_add_configs_for_visuals(dri2_dpy, disp, true))
goto cleanup;
/* Fill vtbl last to prevent accidentally calling virtual function during
* initialization.
*/
dri2_dpy->vtbl = &dri2_x11_display_vtbl;
_eglLog(_EGL_INFO, "Using DRI2");
return EGL_TRUE;
cleanup:
dri2_display_destroy(disp);
return EGL_FALSE;
}
EGLBoolean
dri2_initialize_x11(_EGLDriver *drv, _EGLDisplay *disp)
{
EGLBoolean initialized = EGL_FALSE;
if (!getenv("LIBGL_ALWAYS_SOFTWARE")) {
#ifdef HAVE_DRI3
if (!getenv("LIBGL_DRI3_DISABLE"))
initialized = dri2_initialize_x11_dri3(drv, disp);
#endif
if (!initialized)
initialized = dri2_initialize_x11_dri2(drv, disp);
}
if (!initialized)
initialized = dri2_initialize_x11_swrast(drv, disp);
return initialized;
}