/*
* 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 <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <limits.h>
#include <dlfcn.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <xf86drm.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "egl_dri2.h"
static void
swrastCreateDrawable(struct dri2_egl_display * dri2_dpy,
struct dri2_egl_surface * dri2_surf,
int depth)
{
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);
dri2_surf->depth = depth;
switch (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", 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;
*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 {
*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);
}
/**
* Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
*/
static _EGLSurface *
dri2_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
_EGLConfig *conf, EGLNativeWindowType 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 dri2_egl_surface *dri2_surf;
xcb_get_geometry_cookie_t cookie;
xcb_get_geometry_reply_t *reply;
xcb_screen_iterator_t s;
xcb_generic_error_t *error;
(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);
s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
xcb_create_pixmap(dri2_dpy->conn, conf->BufferSize,
dri2_surf->drawable, s.data->root,
dri2_surf->base.Width, dri2_surf->base.Height);
} else {
dri2_surf->drawable = window;
}
if (dri2_dpy->dri2) {
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);
} else {
assert(dri2_dpy->swrast);
dri2_surf->dri_drawable =
(*dri2_dpy->swrast->createNewDrawable) (dri2_dpy->dri_screen,
dri2_conf->dri_double_config,
dri2_surf);
}
if (dri2_surf->dri_drawable == NULL) {
_eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
goto cleanup_pixmap;
}
if (dri2_dpy->dri2) {
xcb_dri2_create_drawable (dri2_dpy->conn, dri2_surf->drawable);
} else {
swrastCreateDrawable(dri2_dpy, dri2_surf, _eglGetConfigKey(conf, EGL_BUFFER_SIZE));
}
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 (reply == NULL || error != NULL) {
_eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
free(error);
goto cleanup_dri_drawable;
}
dri2_surf->base.Width = reply->width;
dri2_surf->base.Height = reply->height;
free(reply);
}
/* 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_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
_EGLConfig *conf, EGLNativeWindowType window,
const EGLint *attrib_list)
{
return dri2_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
window, attrib_list);
}
static _EGLSurface *
dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
_EGLConfig *conf, EGLNativePixmapType pixmap,
const EGLint *attrib_list)
{
return dri2_create_surface(drv, disp, EGL_PIXMAP_BIT, conf,
pixmap, attrib_list);
}
static _EGLSurface *
dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
_EGLConfig *conf, const EGLint *attrib_list)
{
return dri2_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
XCB_WINDOW_NONE, attrib_list);
}
static EGLBoolean
dri2_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;
if (!_eglPutSurface(surf))
return EGL_TRUE;
(*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;
}
/**
* 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_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;
unsigned i;
dri2_surf->buffer_count = count;
dri2_surf->have_fake_front = 0;
/* This assumes the DRI2 buffer attachment tokens matches the
* __DRIbuffer tokens. */
for (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 = 1;
}
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_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);
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_process_buffers(dri2_surf, buffers, *out_count);
free(reply);
return dri2_surf->buffers;
}
static __DRIbuffer *
dri2_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_process_buffers(dri2_surf, buffers, *out_count);
free(reply);
return dri2_surf->buffers;
}
static void
dri2_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 char *
dri2_strndup(const char *s, int length)
{
char *d;
d = malloc(length + 1);
if (d == NULL)
return NULL;
memcpy(d, s, length);
d[length] = '\0';
return d;
}
static EGLBoolean
dri2_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;
xcb_screen_iterator_t s;
char *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);
s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
connect_cookie = xcb_dri2_connect_unchecked (dri2_dpy->conn,
s.data->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;
}
driver_name = xcb_dri2_connect_driver_name (connect);
dri2_dpy->driver_name =
dri2_strndup(driver_name,
xcb_dri2_connect_driver_name_length (connect));
#if XCB_DRI2_CONNECT_DEVICE_NAME_BROKEN
device_name = driver_name + ((connect->driver_name_length + 3) & ~3);
#else
device_name = xcb_dri2_connect_device_name (connect);
#endif
dri2_dpy->device_name =
dri2_strndup(device_name,
xcb_dri2_connect_device_name_length (connect));
if (dri2_dpy->device_name == NULL || dri2_dpy->driver_name == NULL) {
free(dri2_dpy->device_name);
free(dri2_dpy->driver_name);
free(connect);
return EGL_FALSE;
}
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);
xcb_dri2_authenticate_reply_t *authenticate;
xcb_dri2_authenticate_cookie_t authenticate_cookie;
xcb_screen_iterator_t s;
int ret = 0;
s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
authenticate_cookie =
xcb_dri2_authenticate_unchecked(dri2_dpy->conn, s.data->root, id);
authenticate =
xcb_dri2_authenticate_reply(dri2_dpy->conn, authenticate_cookie, NULL);
if (authenticate == NULL || !authenticate->authenticated)
ret = -1;
if (authenticate)
free(authenticate);
return ret;
}
static EGLBoolean
dri2_authenticate(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
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_authenticate(disp, magic) < 0) {
_eglLog(_EGL_WARNING, "DRI2: failed to authenticate");
return EGL_FALSE;
}
return EGL_TRUE;
}
static EGLBoolean
dri2_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
_EGLDisplay *disp)
{
xcb_screen_iterator_t s;
xcb_depth_iterator_t d;
xcb_visualtype_t *visuals;
int i, j, id;
EGLint surface_type;
EGLint config_attrs[] = {
EGL_NATIVE_VISUAL_ID, 0,
EGL_NATIVE_VISUAL_TYPE, 0,
EGL_NONE
};
s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
d = xcb_screen_allowed_depths_iterator(s.data);
id = 1;
surface_type =
EGL_WINDOW_BIT |
EGL_PIXMAP_BIT |
EGL_PBUFFER_BIT |
EGL_SWAP_BEHAVIOR_PRESERVED_BIT;
while (d.rem > 0) {
EGLBoolean class_added[6] = { 0, };
visuals = xcb_depth_visuals(d.data);
for (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 (j = 0; dri2_dpy->driver_configs[j]; j++) {
config_attrs[1] = visuals[i].visual_id;
config_attrs[3] = visuals[i]._class;
dri2_add_config(disp, dri2_dpy->driver_configs[j], id++,
d.data->depth, surface_type, config_attrs, NULL);
}
}
xcb_depth_next(&d);
}
if (!_eglGetArraySize(disp->Configs)) {
_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;
#ifdef __DRI2_FLUSH
if (dri2_dpy->flush)
(*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
#endif
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_swap_buffers_msc(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw,
int64_t msc, int64_t divisor, int64_t remainder)
{
#if XCB_DRI2_MINOR_VERSION >= 3
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;
#ifdef __DRI2_FLUSH
if (dri2_dpy->flush)
(*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
#endif
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);
}
#if __DRI2_FLUSH_VERSION >= 3
/* If the server doesn't send invalidate events */
if (dri2_dpy->invalidate_available && dri2_dpy->flush &&
dri2_dpy->flush->base.version >= 3 && dri2_dpy->flush->invalidate)
(*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
#endif
return swap_count;
#else
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
return dri2_copy_region(drv, disp, draw, dri2_surf->region) ? 0 : -1;
#endif /* XCB_DRI2_MINOR_VERSION >= 3 */
}
static EGLBoolean
dri2_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->dri2) {
return dri2_swap_buffers_msc(drv, disp, draw, 0, 0, 0) != -1;
} else {
assert(dri2_dpy->swrast);
dri2_dpy->core->swapBuffers(dri2_surf->dri_drawable);
return EGL_TRUE;
}
}
static EGLBoolean
dri2_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];
int i;
if (numRects > (int)ARRAY_SIZE(rectangles))
return dri2_copy_region(drv, disp, draw, dri2_surf->region);
for (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_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_swap_buffers_region(drv, disp, draw, 1, rect);
}
static EGLBoolean
dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf, EGLint interval)
{
#if XCB_DRI2_MINOR_VERSION >= 3
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
#endif
/* XXX Check vblank_mode here? */
if (interval > surf->Config->MaxSwapInterval)
interval = surf->Config->MaxSwapInterval;
else if (interval < surf->Config->MinSwapInterval)
interval = surf->Config->MinSwapInterval;
#if XCB_DRI2_MINOR_VERSION >= 3
if (interval != surf->SwapInterval && dri2_dpy->swap_available)
xcb_dri2_swap_interval(dri2_dpy->conn, dri2_surf->drawable, interval);
#endif
surf->SwapInterval = interval;
return EGL_TRUE;
}
static EGLBoolean
dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
EGLNativePixmapType 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;
(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);
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;
}
if (!_eglInitImage(&dri2_img->base, disp)) {
free(buffers_reply);
free(geometry_reply);
free(dri2_img);
return EGL_NO_IMAGE_KHR;
}
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_initialize_x11_swrast(_EGLDriver *drv, _EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy;
drv->API.CreateWindowSurface = dri2_create_window_surface;
drv->API.CreatePixmapSurface = dri2_create_pixmap_surface;
drv->API.CreatePbufferSurface = dri2_create_pbuffer_surface;
drv->API.DestroySurface = dri2_destroy_surface;
drv->API.SwapBuffers = dri2_swap_buffers;
drv->API.CopyBuffers = dri2_copy_buffers;
drv->API.SwapBuffersRegionNOK = NULL;
drv->API.CreateImageKHR = NULL;
drv->API.DestroyImageKHR = NULL;
drv->API.CreateDRMImageMESA = NULL;
drv->API.ExportDRMImageMESA = NULL;
dri2_dpy = malloc(sizeof *dri2_dpy);
if (!dri2_dpy)
return _eglError(EGL_BAD_ALLOC, "eglInitialize");
memset(dri2_dpy, 0, sizeof *dri2_dpy);
disp->DriverData = (void *) dri2_dpy;
if (disp->PlatformDisplay == NULL) {
dri2_dpy->conn = xcb_connect(0, 0);
} else {
dri2_dpy->conn = XGetXCBConnection((Display *) disp->PlatformDisplay);
}
if (xcb_connection_has_error(dri2_dpy->conn)) {
_eglLog(_EGL_WARNING, "DRI2: xcb_connect failed");
goto cleanup_dpy;
}
if (!dri2_load_driver_swrast(disp))
goto cleanup_conn;
dri2_dpy->swrast_loader_extension.base.name = __DRI_SWRAST_LOADER;
dri2_dpy->swrast_loader_extension.base.version = __DRI_SWRAST_LOADER_VERSION;
dri2_dpy->swrast_loader_extension.getDrawableInfo = swrastGetDrawableInfo;
dri2_dpy->swrast_loader_extension.putImage = swrastPutImage;
dri2_dpy->swrast_loader_extension.getImage = swrastGetImage;
dri2_dpy->extensions[0] = &dri2_dpy->swrast_loader_extension.base;
dri2_dpy->extensions[1] = NULL;
dri2_dpy->extensions[2] = NULL;
if (!dri2_create_screen(disp))
goto cleanup_driver;
if (dri2_dpy->conn) {
if (!dri2_add_configs_for_visuals(dri2_dpy, disp))
goto cleanup_configs;
}
/* we're supporting EGL 1.4 */
disp->VersionMajor = 1;
disp->VersionMinor = 4;
return EGL_TRUE;
cleanup_configs:
_eglCleanupDisplay(disp);
dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
cleanup_driver:
dlclose(dri2_dpy->driver);
cleanup_conn:
if (disp->PlatformDisplay == NULL)
xcb_disconnect(dri2_dpy->conn);
cleanup_dpy:
free(dri2_dpy);
return EGL_FALSE;
}
static EGLBoolean
dri2_initialize_x11_dri2(_EGLDriver *drv, _EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy;
drv->API.CreateWindowSurface = dri2_create_window_surface;
drv->API.CreatePixmapSurface = dri2_create_pixmap_surface;
drv->API.CreatePbufferSurface = dri2_create_pbuffer_surface;
drv->API.DestroySurface = dri2_destroy_surface;
drv->API.SwapBuffers = dri2_swap_buffers;
drv->API.CopyBuffers = dri2_copy_buffers;
drv->API.CreateImageKHR = dri2_x11_create_image_khr;
drv->API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
drv->API.PostSubBufferNV = dri2_post_sub_buffer;
drv->API.SwapInterval = dri2_swap_interval;
dri2_dpy = malloc(sizeof *dri2_dpy);
if (!dri2_dpy)
return _eglError(EGL_BAD_ALLOC, "eglInitialize");
memset(dri2_dpy, 0, sizeof *dri2_dpy);
disp->DriverData = (void *) dri2_dpy;
if (disp->PlatformDisplay == NULL) {
dri2_dpy->conn = xcb_connect(0, 0);
} else {
dri2_dpy->conn = XGetXCBConnection((Display *) disp->PlatformDisplay);
}
if (xcb_connection_has_error(dri2_dpy->conn)) {
_eglLog(_EGL_WARNING, "DRI2: xcb_connect failed");
goto cleanup_dpy;
}
if (dri2_dpy->conn) {
if (!dri2_connect(dri2_dpy))
goto cleanup_conn;
}
if (!dri2_load_driver(disp))
goto cleanup_conn;
#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,
"DRI2: could not open %s (%s)", dri2_dpy->device_name,
strerror(errno));
goto cleanup_driver;
}
if (dri2_dpy->conn) {
if (!dri2_authenticate(disp))
goto cleanup_fd;
}
if (dri2_dpy->dri2_minor >= 1) {
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_get_buffers;
dri2_dpy->dri2_loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
dri2_dpy->dri2_loader_extension.getBuffersWithFormat =
dri2_get_buffers_with_format;
} else {
dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER;
dri2_dpy->dri2_loader_extension.base.version = 2;
dri2_dpy->dri2_loader_extension.getBuffers = dri2_get_buffers;
dri2_dpy->dri2_loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
dri2_dpy->dri2_loader_extension.getBuffersWithFormat = NULL;
}
dri2_dpy->extensions[0] = &dri2_dpy->dri2_loader_extension.base;
dri2_dpy->extensions[1] = &image_lookup_extension.base;
dri2_dpy->extensions[2] = NULL;
#if XCB_DRI2_MINOR_VERSION >= 3
dri2_dpy->swap_available = (dri2_dpy->dri2_minor >= 2);
dri2_dpy->invalidate_available = (dri2_dpy->dri2_minor >= 3);
#endif
if (!dri2_create_screen(disp))
goto cleanup_fd;
if (dri2_dpy->conn) {
if (!dri2_add_configs_for_visuals(dri2_dpy, disp))
goto cleanup_configs;
}
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;
#ifdef HAVE_WAYLAND_PLATFORM
disp->Extensions.WL_bind_wayland_display = EGL_TRUE;
#endif
dri2_dpy->authenticate = dri2_x11_authenticate;
/* we're supporting EGL 1.4 */
disp->VersionMajor = 1;
disp->VersionMinor = 4;
return EGL_TRUE;
cleanup_configs:
_eglCleanupDisplay(disp);
dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
cleanup_fd:
close(dri2_dpy->fd);
cleanup_driver:
dlclose(dri2_dpy->driver);
cleanup_conn:
if (disp->PlatformDisplay == NULL)
xcb_disconnect(dri2_dpy->conn);
cleanup_dpy:
free(dri2_dpy);
return EGL_FALSE;
}
EGLBoolean
dri2_initialize_x11(_EGLDriver *drv, _EGLDisplay *disp)
{
EGLBoolean initialized = EGL_TRUE;
int x11_dri2_accel = (getenv("LIBGL_ALWAYS_SOFTWARE") == NULL);
if (x11_dri2_accel) {
if (!dri2_initialize_x11_dri2(drv, disp)) {
initialized = dri2_initialize_x11_swrast(drv, disp);
}
} else {
initialized = dri2_initialize_x11_swrast(drv, disp);
}
return initialized;
}