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dri3.c
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dri3.c
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/*
* Copyright © 2014 Axel Davy
*
* 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.
*/
#include <stdlib.h>
#include <fcntl.h>
#include <X11/Xlib.h>
#include <X11/extensions/Xfixes.h>
#include <X11/Xlib-xcb.h>
#include <stdio.h>
#include <string.h>
#include <pthread.h>
#if D3DADAPTER9_WITHDRI2
// BOOL is defined differently in Xmd.h and d3dt.h
#define BOOL hack_xmd_BOOL
#include <unistd.h>
#include <sys/ioctl.h>
#include <X11/Xlibint.h>
#include <X11/extensions/dri2tokens.h>
#include <X11/extensions/dri2proto.h>
#include <X11/extensions/extutil.h>
#define GL_GLEXT_PROTOTYPES 1
#define EGL_EGLEXT_PROTOTYPES 1
#define GL_GLEXT_LEGACY 1
#include <GL/gl.h>
/* workaround gl header bug */
#define glBlendColor glBlendColorLEV
#define glBlendEquation glBlendEquationLEV
#include <GL/glext.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <libdrm/drm_fourcc.h>
#include <libdrm/drm.h>
/*GLAPI void GLAPIENTRY glFlush( void );
GLAPI void APIENTRY glGenFramebuffers (GLsizei n, GLuint *framebuffers);
GLAPI void APIENTRY glBindFramebufferEXT (GLenum target, GLuint framebuffer);
GLAPI void APIENTRY glBlitFramebuffer (GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
GLAPI void APIENTRY glFramebufferTexture2DEXT (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
GLAPI void APIENTRY glBindFramebuffer (GLenum target, GLuint framebuffer);
GLAPI void APIENTRY glFramebufferTexture2D (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
GLAPI void APIENTRY glDeleteTexturesEXT (GLsizei n, const GLuint *textures);
EGLAPI EGLBoolean EGLAPIENTRY eglDestroyImageKHR (EGLDisplay dpy, EGLImageKHR image);*/
typedef void (APIENTRYP PFNGLEGLIMAGETARGETTEXTURE2DOESPROC) (GLenum target, GLeglImageOES image);
typedef EGLImageKHR (EGLAPIENTRYP PFNEGLCREATEIMAGEKHRPROC) (EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list);
typedef EGLDisplay (EGLAPIENTRYP PFNEGLGETPLATFORMDISPLAYEXTPROC) (EGLenum platform, void *native_display, const EGLint *attrib_list);
#undef BOOL
#endif
#include <d3d9.h>
#include "dri3.h"
#ifdef _DEBUG
#define TRACE(...) fprintf(stderr, __VA_ARGS__)
#define ERR(...) fprintf(stderr, __VA_ARGS__)
#else
#define TRACE(...)
#define ERR(...) fprintf(stderr, __VA_ARGS__)
#endif
// --------------------------------- dlls/winex11.drv/dri3.c --------------------------------------------
BOOL
DRI3CheckExtension(Display *dpy, int major, int minor)
{
xcb_connection_t *xcb_connection = XGetXCBConnection(dpy);
xcb_dri3_query_version_cookie_t dri3_cookie;
xcb_dri3_query_version_reply_t *dri3_reply;
xcb_generic_error_t *error;
const xcb_query_extension_reply_t *extension;
int fd;
xcb_prefetch_extension_data(xcb_connection, &xcb_dri3_id);
extension = xcb_get_extension_data(xcb_connection, &xcb_dri3_id);
if (!(extension && extension->present)) {
ERR("DRI3 extension is not present\n");
return FALSE;
}
dri3_cookie = xcb_dri3_query_version(xcb_connection, major, minor);
dri3_reply = xcb_dri3_query_version_reply(xcb_connection, dri3_cookie, &error);
if (!dri3_reply) {
free(error);
ERR("Issue getting requested version of DRI3: %d,%d\n", major, minor);
return FALSE;
}
if (!DRI3Open(dpy, DefaultScreen(dpy), &fd)) {
ERR("DRI3 advertised, but not working\n");
return FALSE;
}
close(fd);
TRACE("DRI3 version %d,%d found. %d %d requested\n", major, minor, (int)dri3_reply->major_version, (int)dri3_reply->minor_version);
free(dri3_reply);
return TRUE;
}
#if D3DADAPTER9_WITHDRI2
struct DRI2priv {
Display *dpy;
EGLDisplay display;
EGLContext context;
PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES_func;
PFNEGLCREATEIMAGEKHRPROC eglCreateImageKHR_func;
PFNEGLDESTROYIMAGEKHRPROC eglDestroyImageKHR_func;
};
/* TODO: We don't free memory properly. When exiting, eglTerminate doesn't work well(crash), and things are freed automatically. Rely on it */
BOOL
DRI2FallbackInit(Display *dpy, struct DRI2priv **priv)
{
PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES_func;
PFNEGLCREATEIMAGEKHRPROC eglCreateImageKHR_func;
PFNEGLGETPLATFORMDISPLAYEXTPROC eglGetPlatformDisplayEXT_func;
PFNEGLDESTROYIMAGEKHRPROC eglDestroyImageKHR_func;
EGLDisplay display;
EGLint major, minor;
EGLConfig config;
EGLContext context;
EGLint i;
EGLBoolean b;
EGLenum current_api;
const char *extensions;
EGLint config_attribs[] = {
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE
};
EGLint context_compatibility_attribs[] = {
EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR,
EGL_NONE
};
current_api = eglQueryAPI();
eglGetPlatformDisplayEXT_func = (PFNEGLGETPLATFORMDISPLAYEXTPROC) eglGetProcAddress("eglGetPlatformDisplayEXT");
if (!eglGetPlatformDisplayEXT_func)
return FALSE;
display = eglGetPlatformDisplayEXT_func(EGL_PLATFORM_X11_EXT, dpy, NULL);
if (!display)
return FALSE;
if (eglInitialize(display, &major, &minor) != EGL_TRUE)
goto clean_egl_display;
extensions = eglQueryString(display, EGL_CLIENT_APIS);
if (!extensions || !strstr(extensions, "OpenGL"))
goto clean_egl_display;
extensions = eglQueryString(display, EGL_EXTENSIONS);
if (!extensions || !strstr(extensions, "EGL_EXT_image_dma_buf_import") ||
!strstr(extensions, "EGL_KHR_create_context") ||
!strstr(extensions, "EGL_KHR_surfaceless_context") ||
!strstr(extensions, "EGL_KHR_image_base"))
goto clean_egl_display;
if (!eglChooseConfig(display, config_attribs, &config, 1, &i))
goto clean_egl_display;
b = eglBindAPI(EGL_OPENGL_API);
if (b == EGL_FALSE)
goto clean_egl_display;
context = eglCreateContext(display, config, EGL_NO_CONTEXT, context_compatibility_attribs);
if (context == EGL_NO_CONTEXT)
goto clean_egl_display;
glEGLImageTargetTexture2DOES_func = (PFNGLEGLIMAGETARGETTEXTURE2DOESPROC) eglGetProcAddress("glEGLImageTargetTexture2DOES");
eglCreateImageKHR_func = (PFNEGLCREATEIMAGEKHRPROC) eglGetProcAddress("eglCreateImageKHR");
if (!eglCreateImageKHR_func || !glEGLImageTargetTexture2DOES_func)
goto clean_egl_display;
eglDestroyImageKHR_func = (PFNEGLDESTROYIMAGEKHRPROC) eglGetProcAddress("eglDestroyImageKHR");
if (!eglDestroyImageKHR_func)
goto clean_egl_display;
eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
*priv = calloc(1, sizeof(struct DRI2priv));
if (!*priv)
goto clean_egl;
(*priv)->dpy = dpy;
(*priv)->display = display;
(*priv)->context = context;
(*priv)->glEGLImageTargetTexture2DOES_func = glEGLImageTargetTexture2DOES_func;
(*priv)->eglCreateImageKHR_func = eglCreateImageKHR_func;
(*priv)->eglDestroyImageKHR_func = eglDestroyImageKHR_func;
eglBindAPI(current_api);
return TRUE;
clean_egl:
clean_egl_display:
eglTerminate(display);
eglBindAPI(current_api);
return FALSE;
}
/* hypothesis: at this step all textures, etc are destroyed */
void
DRI2FallbackDestroy(struct DRI2priv *priv)
{
EGLenum current_api;
current_api = eglQueryAPI();
eglBindAPI(EGL_OPENGL_API);
eglMakeCurrent(priv->display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroyContext(priv->display, priv->context);
eglTerminate(priv->display);
eglBindAPI(current_api);
free(priv);
}
BOOL
DRI2FallbackCheckSupport(Display *dpy)
{
struct DRI2priv *priv;
int fd;
if (!DRI2FallbackInit(dpy, &priv))
return FALSE;
DRI2FallbackDestroy(priv);
if (!DRI2FallbackOpen(dpy, DefaultScreen(dpy), &fd))
return FALSE;
close(fd);
return TRUE;
}
#endif
BOOL
PRESENTCheckExtension(Display *dpy, int major, int minor)
{
xcb_connection_t *xcb_connection = XGetXCBConnection(dpy);
xcb_present_query_version_cookie_t present_cookie;
xcb_present_query_version_reply_t *present_reply;
xcb_generic_error_t *error;
const xcb_query_extension_reply_t *extension;
xcb_prefetch_extension_data(xcb_connection, &xcb_present_id);
extension = xcb_get_extension_data(xcb_connection, &xcb_present_id);
if (!(extension && extension->present)) {
ERR("PRESENT extension is not present\n");
return FALSE;
}
present_cookie = xcb_present_query_version(xcb_connection, major, minor);
present_reply = xcb_present_query_version_reply(xcb_connection, present_cookie, &error);
if (!present_reply) {
free(error);
ERR("Issue getting requested version of PRESENT: %d,%d\n", major, minor);
return FALSE;
}
TRACE("PRESENT version %d,%d found. %d %d requested\n", major, minor, (int)present_reply->major_version, (int)present_reply->minor_version);
free(present_reply);
return TRUE;
}
BOOL
DRI3Open(Display *dpy, int screen, int *device_fd)
{
xcb_dri3_open_cookie_t cookie;
xcb_dri3_open_reply_t *reply;
xcb_connection_t *xcb_connection = XGetXCBConnection(dpy);
int fd;
Window root = RootWindow(dpy, screen);
cookie = xcb_dri3_open(xcb_connection, root, 0);
reply = xcb_dri3_open_reply(xcb_connection, cookie, NULL);
if (!reply)
return FALSE;
if (reply->nfd != 1) {
free(reply);
return FALSE;
}
fd = xcb_dri3_open_reply_fds(xcb_connection, reply)[0];
fcntl(fd, F_SETFD, FD_CLOEXEC);
*device_fd = fd;
return TRUE;
}
#if D3DADAPTER9_WITHDRI2
static XExtensionInfo _dri2_info_data;
static XExtensionInfo *dri2_info = &_dri2_info_data;
static char dri2_name[] = DRI2_NAME;
#define DRI2CheckExtension(dpy, i, val) \
XextCheckExtension(dpy, i, dri2_name, val)
static int
close_display(Display *dpy,
XExtCodes *codes);
static Bool
wire_to_event(Display *dpy,
XEvent *re,
xEvent *event);
static Status
event_to_wire(Display *dpy,
XEvent *re,
xEvent *event);
static int
error( Display *dpy,
xError *err,
XExtCodes *codes,
int *ret_code );
static XExtensionHooks dri2_hooks = {
NULL, /* create_gc */
NULL, /* copy_gc */
NULL, /* flush_gc */
NULL, /* free_gc */
NULL, /* create_font */
NULL, /* free_font */
close_display, /* close_display */
wire_to_event, /* wire_to_event */
event_to_wire, /* event_to_wire */
error, /* error */
NULL, /* error_string */
};
static XEXT_GENERATE_CLOSE_DISPLAY(close_display, dri2_info);
static XEXT_GENERATE_FIND_DISPLAY(find_display, dri2_info,
dri2_name, &dri2_hooks, 0, NULL);
static Bool
wire_to_event(Display *dpy,
XEvent *re,
xEvent *event)
{
XExtDisplayInfo *info = find_display(dpy);
DRI2CheckExtension(dpy, info, False);
TRACE("dri2 wire_to_event\n");
return False;
}
static Status
event_to_wire(Display *dpy,
XEvent *re,
xEvent *event)
{
XExtDisplayInfo *info = find_display(dpy);
DRI2CheckExtension(dpy, info, False);
TRACE("dri2 event_to_wire\n");
return False;
}
static int
error(Display *dpy,
xError *err,
XExtCodes *codes,
int *ret_code)
{
TRACE("dri2 error\n");
return False;
}
#define XALIGN(x) (((x) + 3) & (~3))
static BOOL
DRI2Connect(Display *dpy,
XID window,
unsigned driver_type,
char **device )
{
XExtDisplayInfo *info = find_display(dpy);
xDRI2ConnectReply rep;
xDRI2ConnectReq *req;
int dev_len, driv_len;
char *driver;
DRI2CheckExtension(dpy, info, False);
LockDisplay(dpy);
GetReq(DRI2Connect, req);
req->reqType = info->codes->major_opcode;
req->dri2ReqType = X_DRI2Connect;
req->window = window;
req->driverType = driver_type;
if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
UnlockDisplay(dpy);
SyncHandle();
return False;
}
/* check string lengths */
dev_len = rep.deviceNameLength;
driv_len = rep.driverNameLength;
if (dev_len == 0 || driv_len == 0) {
_XEatData(dpy, XALIGN(dev_len) + XALIGN(driv_len));
UnlockDisplay(dpy);
SyncHandle();
return False;
}
/* read out driver */
driver = calloc(1, driv_len + 1);
if (!driver) {
_XEatData(dpy, XALIGN(dev_len) + XALIGN(driv_len));
UnlockDisplay(dpy);
SyncHandle();
return False;
}
_XReadPad(dpy, driver, driv_len);
free(driver); /* we don't need the driver */
/* read out device */
*device = calloc(1, dev_len + 1);
if (!*device) {
_XEatData(dpy, XALIGN(dev_len));
UnlockDisplay(dpy);
SyncHandle();
return False;
}
_XReadPad(dpy, *device, dev_len);
(*device)[dev_len] = '\0';
UnlockDisplay(dpy);
SyncHandle();
return True;
}
static Bool
DRI2Authenticate(Display *dpy,
XID window,
uint32_t token)
{
XExtDisplayInfo *info = find_display(dpy);
xDRI2AuthenticateReply rep;
xDRI2AuthenticateReq *req;
DRI2CheckExtension(dpy, info, False);
LockDisplay(dpy);
GetReq(DRI2Authenticate, req);
req->reqType = info->codes->major_opcode;
req->dri2ReqType = X_DRI2Authenticate;
req->window = window;
req->magic = token;
if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
UnlockDisplay(dpy);
SyncHandle();
return False;
}
UnlockDisplay(dpy);
SyncHandle();
return rep.authenticated ? True : False;
}
BOOL
DRI2FallbackOpen(Display *dpy, int screen, int *device_fd)
{
char *device;
int fd;
Window root = RootWindow(dpy, screen);
drm_auth_t auth;
if (!DRI2Connect(dpy, root, DRI2DriverDRI, &device))
return FALSE;
fd = open(device, O_RDWR);
free(device);
if (fd < 0)
return FALSE;
if (ioctl(fd, DRM_IOCTL_GET_MAGIC, &auth) != 0) {
close(fd);
return FALSE;
}
if (!DRI2Authenticate(dpy, root, auth.magic)) {
close(fd);
return FALSE;
}
*device_fd = fd;
return TRUE;
}
#endif
BOOL
DRI3PixmapFromDmaBuf(Display *dpy, int screen, int fd, int width, int height, int stride, int depth, int bpp, Pixmap *pixmap)
{
xcb_connection_t *xcb_connection = XGetXCBConnection(dpy);
Window root = RootWindow(dpy, screen);
xcb_void_cookie_t cookie;
xcb_generic_error_t *error;
cookie = xcb_dri3_pixmap_from_buffer_checked(xcb_connection,
(*pixmap = xcb_generate_id(xcb_connection)),
root,
0,
width, height, stride,
depth, bpp, fd);
error = xcb_request_check(xcb_connection, cookie); /* performs a flush */
if (error) {
ERR("Error using DRI3 to convert a DmaBufFd to pixmap\n");
return FALSE;
}
return TRUE;
}
BOOL
DRI3DmaBufFromPixmap(Display *dpy, Pixmap pixmap, int *fd, int *width, int *height, int *stride, int *depth, int *bpp)
{
xcb_connection_t *xcb_connection = XGetXCBConnection(dpy);
xcb_dri3_buffer_from_pixmap_cookie_t bp_cookie;
xcb_dri3_buffer_from_pixmap_reply_t *bp_reply;
bp_cookie = xcb_dri3_buffer_from_pixmap(xcb_connection, pixmap);
bp_reply = xcb_dri3_buffer_from_pixmap_reply(xcb_connection, bp_cookie, NULL);
if (!bp_reply)
return FALSE;
*fd = xcb_dri3_buffer_from_pixmap_reply_fds(xcb_connection, bp_reply)[0];
*width = bp_reply->width;
*height = bp_reply->height;
*stride = bp_reply->stride;
*depth = bp_reply->depth;
*bpp = bp_reply->depth;
return TRUE;
}
struct PRESENTPriv {
xcb_connection_t *xcb_connection;
xcb_connection_t *xcb_connection_bis; /* to avoid libxcb thread bugs, use a different connection to present pixmaps */
XID window;
uint64_t last_msc;
uint64_t last_target;
uint32_t last_serial_given;
xcb_special_event_t *special_event;
PRESENTPixmapPriv *first_present_priv;
int pixmap_present_pending;
BOOL notify_with_serial_pending;
pthread_mutex_t mutex_present; /* protect readind/writing present_priv things */
pthread_mutex_t mutex_xcb_wait;
BOOL xcb_wait;
};
struct PRESENTPixmapPriv {
PRESENTpriv *present_priv;
Pixmap pixmap;
BOOL released;
unsigned int width;
unsigned int height;
unsigned int depth;
BOOL present_complete_pending;
uint32_t serial;
#if D3DADAPTER9_WITHDRI2
struct {
BOOL is_dri2;
struct DRI2priv *dri2_priv;
GLuint fbo_read;
GLuint fbo_write;
GLuint texture_read;
GLuint texture_write;
} dri2_info;
#endif
BOOL last_present_was_flip;
PRESENTPixmapPriv *next;
};
static PRESENTPixmapPriv *PRESENTFindPixmapPriv(PRESENTpriv *present_priv, uint32_t serial)
{
PRESENTPixmapPriv *current = present_priv->first_present_priv;
while (current) {
if (current->serial == serial)
return current;
current = current->next;
}
return NULL;
}
static void PRESENThandle_events(PRESENTpriv *present_priv, xcb_present_generic_event_t *ge)
{
PRESENTPixmapPriv *present_pixmap_priv = NULL;
switch (ge->evtype) {
case XCB_PRESENT_COMPLETE_NOTIFY: {
xcb_present_complete_notify_event_t *ce = (void *) ge;
if (ce->kind == XCB_PRESENT_COMPLETE_KIND_NOTIFY_MSC) {
if (ce->serial)
present_priv->notify_with_serial_pending = FALSE;
free(ce);
return;
}
present_pixmap_priv = PRESENTFindPixmapPriv(present_priv, ce->serial);
if (!present_pixmap_priv || ce->kind != XCB_PRESENT_COMPLETE_KIND_PIXMAP) {
ERR("FATAL ERROR: PRESENT handling failed\n");
free(ce);
return;
}
present_pixmap_priv->present_complete_pending = FALSE;
switch (ce->mode) {
case XCB_PRESENT_COMPLETE_MODE_FLIP:
present_pixmap_priv->last_present_was_flip = TRUE;
break;
case XCB_PRESENT_COMPLETE_MODE_COPY:
present_pixmap_priv->last_present_was_flip = FALSE;
break;
}
present_priv->pixmap_present_pending--;
present_priv->last_msc = ce->msc;
break;
}
case XCB_PRESENT_EVENT_IDLE_NOTIFY: {
xcb_present_idle_notify_event_t *ie = (void *) ge;
present_pixmap_priv = PRESENTFindPixmapPriv(present_priv, ie->serial);
if (!present_pixmap_priv || present_pixmap_priv->pixmap != ie->pixmap) {
ERR("FATAL ERROR: PRESENT handling failed\n");
free(ie);
return;
}
present_pixmap_priv->released = TRUE;
break;
}
}
free(ge);
}
static void PRESENTflush_events(PRESENTpriv *present_priv, BOOL assert_no_other_thread_waiting)
{
xcb_generic_event_t *ev;
if ((present_priv->xcb_wait && !assert_no_other_thread_waiting) || /* don't steal events to someone waiting */
!present_priv->special_event)
return;
while ((ev = xcb_poll_for_special_event(present_priv->xcb_connection, present_priv->special_event)) != NULL) {
PRESENThandle_events(present_priv, (void *) ev);
}
}
static BOOL PRESENTwait_events(PRESENTpriv *present_priv, BOOL allow_other_threads)
{
xcb_generic_event_t *ev;
if (allow_other_threads) {
present_priv->xcb_wait = TRUE;
pthread_mutex_lock(&present_priv->mutex_xcb_wait);
pthread_mutex_unlock(&present_priv->mutex_present);
}
ev = xcb_wait_for_special_event(present_priv->xcb_connection, present_priv->special_event);
if (allow_other_threads) {
pthread_mutex_unlock(&present_priv->mutex_xcb_wait);
pthread_mutex_lock(&present_priv->mutex_present);
present_priv->xcb_wait = FALSE;
}
if (!ev) {
ERR("FATAL error: xcb had an error\n");
return FALSE;
}
PRESENThandle_events(present_priv, (void *) ev);
return TRUE;
}
static struct xcb_connection_t *
create_xcb_connection(Display *dpy)
{
int screen_num = DefaultScreen(dpy);
xcb_connection_t *ret;
xcb_xfixes_query_version_cookie_t cookie;
xcb_xfixes_query_version_reply_t *rep;
ret = xcb_connect(DisplayString(dpy), &screen_num);
cookie = xcb_xfixes_query_version_unchecked(ret, XCB_XFIXES_MAJOR_VERSION, XCB_XFIXES_MINOR_VERSION);
rep = xcb_xfixes_query_version_reply(ret, cookie, NULL);
if (rep)
free(rep);
return ret;
}
BOOL
PRESENTInit(Display *dpy, PRESENTpriv **present_priv)
{
*present_priv = (PRESENTpriv *) calloc(1, sizeof(PRESENTpriv));
if (!*present_priv) {
return FALSE;
}
(*present_priv)->xcb_connection = create_xcb_connection(dpy);
(*present_priv)->xcb_connection_bis = create_xcb_connection(dpy);
pthread_mutex_init(&(*present_priv)->mutex_present, NULL);
pthread_mutex_init(&(*present_priv)->mutex_xcb_wait, NULL);
return TRUE;
}
static void PRESENTForceReleases(PRESENTpriv *present_priv)
{
PRESENTPixmapPriv *current = NULL;
if (!present_priv->window)
return;
/* There should be no other thread listening for events here.
* This can happen when hDestWindowOverride changes without reset.
* This case should never happen, but can happen in theory.*/
if (present_priv->xcb_wait) {
xcb_present_notify_msc(present_priv->xcb_connection, present_priv->window, 0, 0, 0, 0);
xcb_flush(present_priv->xcb_connection);
pthread_mutex_lock(&present_priv->mutex_xcb_wait);
pthread_mutex_unlock(&present_priv->mutex_xcb_wait);
/* the problem here is that we don't have access to the event the other thread got.
* It is either presented event, idle event or notify event.
*/
while (present_priv->pixmap_present_pending >= 2)
PRESENTwait_events(present_priv, FALSE);
PRESENTflush_events(present_priv, TRUE);
/* Remaining events to come can be a pair of present/idle,
* or an idle, or nothing. To be sure we are after all pixmaps
* have been presented, add an event to the queue that can only
* be after the present event, then if we receive an event more,
* we are sure all pixmaps were presented */
present_priv->notify_with_serial_pending = TRUE;
xcb_present_notify_msc(present_priv->xcb_connection, present_priv->window, 1, present_priv->last_target + 5, 0, 0);
xcb_flush(present_priv->xcb_connection);
while (present_priv->notify_with_serial_pending)
PRESENTwait_events(present_priv, FALSE);
/* Now we are sure we are not expecting any new event */
} else {
while (present_priv->pixmap_present_pending) /* wait all sent pixmaps are presented */
PRESENTwait_events(present_priv, FALSE);
PRESENTflush_events(present_priv, TRUE); /* may be remaining idle event */
/* Since idle events are send with the complete events when it is not flips,
* we are not expecting any new event here */
}
current = present_priv->first_present_priv;
while (current) {
if (!current->released) {
if (!current->last_present_was_flip && !present_priv->xcb_wait) {
ERR("ERROR: a pixmap seems not released by PRESENT for no reason. Code bug.\n");
} else {
/* Present the same pixmap with a non-valid part to force the copy mode and the releases */
xcb_xfixes_region_t valid, update;
xcb_rectangle_t rect_update;
rect_update.x = 0;
rect_update.y = 0;
rect_update.width = 8;
rect_update.height = 1;
valid = xcb_generate_id(present_priv->xcb_connection);
update = xcb_generate_id(present_priv->xcb_connection);
xcb_xfixes_create_region(present_priv->xcb_connection, valid, 1, &rect_update);
xcb_xfixes_create_region(present_priv->xcb_connection, update, 1, &rect_update);
/* here we know the pixmap has been presented. Thus if it is on screen,
* the following request can only make it released by the server if it is not */
xcb_present_pixmap(present_priv->xcb_connection, present_priv->window,
current->pixmap, 0, valid, update, 0, 0, None, None,
None, XCB_PRESENT_OPTION_COPY | XCB_PRESENT_OPTION_ASYNC, 0, 0, 0, 0, NULL);
xcb_flush(present_priv->xcb_connection);
PRESENTwait_events(present_priv, FALSE); /* by assumption this can only be idle event */
PRESENTflush_events(present_priv, TRUE); /* Shoudln't be needed */
}
}
current = current->next;
}
/* Now all pixmaps are released (possibility if xcb_wait is true that one is not aware yet),
* and we don't expect any new Present event to come from Xserver */
}
static void PRESENTFreeXcbQueue(PRESENTpriv *present_priv)
{
if (present_priv->window) {
xcb_unregister_for_special_event(present_priv->xcb_connection, present_priv->special_event);
present_priv->last_msc = 0;
present_priv->last_target = 0;
present_priv->special_event = NULL;
}
}
static BOOL PRESENTPrivChangeWindow(PRESENTpriv *present_priv, XID window)
{
xcb_void_cookie_t cookie;
xcb_generic_error_t *error;
xcb_present_event_t eid;
PRESENTForceReleases(present_priv);
PRESENTFreeXcbQueue(present_priv);
present_priv->window = window;
if (window) {
cookie = xcb_present_select_input_checked(present_priv->xcb_connection,
(eid = xcb_generate_id(present_priv->xcb_connection)),
window,
XCB_PRESENT_EVENT_MASK_COMPLETE_NOTIFY|
XCB_PRESENT_EVENT_MASK_IDLE_NOTIFY);
present_priv->special_event = xcb_register_for_special_xge(present_priv->xcb_connection,
&xcb_present_id,
eid, NULL);
error = xcb_request_check(present_priv->xcb_connection, cookie); /* performs a flush */
if (error || !present_priv->special_event) {
ERR("FAILED to use the X PRESENT extension. Was the destination a window ?\n");
if (present_priv->special_event)
xcb_unregister_for_special_event(present_priv->xcb_connection, present_priv->special_event);
present_priv->special_event = NULL;
present_priv->window = 0;
}
}
return (present_priv->window != 0);
}
/* Destroy the content, except the link and the struct mem */
static void
PRESENTDestroyPixmapContent(Display *dpy, PRESENTPixmapPriv *present_pixmap)
{
XFreePixmap(dpy, present_pixmap->pixmap);
#if D3DADAPTER9_WITHDRI2
if (present_pixmap->dri2_info.is_dri2) {
struct DRI2priv *dri2_priv = present_pixmap->dri2_info.dri2_priv;
EGLenum current_api;
current_api = eglQueryAPI();
eglBindAPI(EGL_OPENGL_API);
eglMakeCurrent(dri2_priv->display, EGL_NO_SURFACE, EGL_NO_SURFACE, dri2_priv->context);
glDeleteFramebuffers(1, &present_pixmap->dri2_info.fbo_read);
glDeleteFramebuffers(1, &present_pixmap->dri2_info.fbo_write);
glDeleteTextures(1, &present_pixmap->dri2_info.texture_read);
glDeleteTextures(1, &present_pixmap->dri2_info.texture_write);
eglMakeCurrent(dri2_priv->display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglBindAPI(current_api);
}
#endif
}
void
PRESENTDestroy(Display *dpy, PRESENTpriv *present_priv)
{
PRESENTPixmapPriv *current = NULL;
pthread_mutex_lock(&present_priv->mutex_present);
PRESENTForceReleases(present_priv);
current = present_priv->first_present_priv;
while (current) {
PRESENTPixmapPriv *next = current->next;
PRESENTDestroyPixmapContent(dpy, current);
free(current);
current = next;
}
PRESENTFreeXcbQueue(present_priv);
xcb_disconnect(present_priv->xcb_connection);
xcb_disconnect(present_priv->xcb_connection_bis);
pthread_mutex_unlock(&present_priv->mutex_present);
pthread_mutex_destroy(&present_priv->mutex_present);
pthread_mutex_destroy(&present_priv->mutex_xcb_wait);
free(present_priv);
}
BOOL
PRESENTPixmapInit(PRESENTpriv *present_priv, Pixmap pixmap, PRESENTPixmapPriv **present_pixmap_priv)
{
xcb_get_geometry_cookie_t cookie;
xcb_get_geometry_reply_t *reply;
cookie = xcb_get_geometry(present_priv->xcb_connection, pixmap);
reply = xcb_get_geometry_reply(present_priv->xcb_connection, cookie, NULL);
if (!reply)
return FALSE;
*present_pixmap_priv = (PRESENTPixmapPriv *) calloc(1, sizeof(PRESENTPixmapPriv));
if (!*present_pixmap_priv) {
free(reply);
return FALSE;
}
pthread_mutex_lock(&present_priv->mutex_present);
(*present_pixmap_priv)->released = TRUE;
(*present_pixmap_priv)->pixmap = pixmap;
(*present_pixmap_priv)->present_priv = present_priv;
(*present_pixmap_priv)->next = present_priv->first_present_priv;
(*present_pixmap_priv)->width = reply->width;
(*present_pixmap_priv)->height = reply->height;
(*present_pixmap_priv)->depth = reply->depth;
#if D3DADAPTER9_WITHDRI2
(*present_pixmap_priv)->dri2_info.is_dri2 = FALSE;
#endif
free(reply);
present_priv->last_serial_given++;
(*present_pixmap_priv)->serial = present_priv->last_serial_given;
present_priv->first_present_priv = *present_pixmap_priv;
pthread_mutex_unlock(&present_priv->mutex_present);
return TRUE;
}
#if D3DADAPTER9_WITHDRI2
BOOL
DRI2FallbackPRESENTPixmap(PRESENTpriv *present_priv, struct DRI2priv *dri2_priv,
int fd, int width, int height, int stride, int depth,
int bpp, PRESENTPixmapPriv **present_pixmap_priv)
{
Window root = RootWindow(dri2_priv->dpy, DefaultScreen(dri2_priv->dpy));
Pixmap pixmap;
EGLImageKHR image;
GLuint texture_read, texture_write, fbo_read, fbo_write;
EGLint attribs[] = {
EGL_WIDTH, 0,
EGL_HEIGHT, 0,
EGL_LINUX_DRM_FOURCC_EXT, DRM_FORMAT_ARGB8888,
EGL_DMA_BUF_PLANE0_FD_EXT, 0,
EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0,
EGL_DMA_BUF_PLANE0_PITCH_EXT, 0,
EGL_NONE
};
EGLenum current_api;
int status;
pthread_mutex_lock(&present_priv->mutex_present);
pixmap = XCreatePixmap(dri2_priv->dpy, root, width, height, 24);
if (!pixmap)
goto fail;
attribs[1] = width;
attribs[3] = height;
attribs[7] = fd;
attribs[11] = stride;
current_api = eglQueryAPI();
eglBindAPI(EGL_OPENGL_API);
/* We bind the dma-buf to a EGLImage, then to a texture, and then to a fbo.
* Note that we can delete the EGLImage, but we shouldn't delete the texture,
* else the fbo is invalid */
image = dri2_priv->eglCreateImageKHR_func(dri2_priv->display,
EGL_NO_CONTEXT,
EGL_LINUX_DMA_BUF_EXT,
NULL, attribs);
if (image == EGL_NO_IMAGE_KHR)
goto fail;
close(fd);
eglMakeCurrent(dri2_priv->display, EGL_NO_SURFACE, EGL_NO_SURFACE, dri2_priv->context);
glGenTextures(1, &texture_read);
glBindTexture(GL_TEXTURE_2D, texture_read);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
dri2_priv->glEGLImageTargetTexture2DOES_func(GL_TEXTURE_2D, image);
glGenFramebuffers(1, &fbo_read);
glBindFramebuffer(GL_FRAMEBUFFER, fbo_read);
glFramebufferTexture2D(GL_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D, texture_read,
0);
status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if (status != GL_FRAMEBUFFER_COMPLETE)
goto fail;
glBindTexture(GL_TEXTURE_2D, 0);
dri2_priv->eglDestroyImageKHR_func(dri2_priv->display, image);
/* We bind a newly created pixmap (to which we want to copy the content)