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/*
* Copyright © 2010 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 <GL/gl.h>
#include <GL/internal/dri_interface.h>
#include <xcb/xcb.h>
#include <xcb/dri2.h>
#include <xcb/xfixes.h>
#include <X11/Xlib-xcb.h>
#include <glapi/glapi.h>
#include "eglconfigutil.h"
#include "eglconfig.h"
#include "eglcontext.h"
#include "egldisplay.h"
#include "egldriver.h"
#include "eglcurrent.h"
#include "egllog.h"
#include "eglsurface.h"
struct dri2_egl_driver
{
_EGLDriver base;
};
struct dri2_egl_display
{
xcb_connection_t *conn;
int dri2_major;
int dri2_minor;
__DRIscreen *dri_screen;
void *driver;
__DRIcoreExtension *core;
__DRIdri2Extension *dri2;
__DRI2flushExtension *flush;
int fd;
__DRIdri2LoaderExtension loader_extension;
const __DRIextension *extensions[2];
};
struct dri2_egl_context
{
_EGLContext base;
__DRIcontext *dri_context;
};
struct dri2_egl_surface
{
_EGLSurface base;
__DRIdrawable *dri_drawable;
xcb_drawable_t drawable;
__DRIbuffer buffers[5];
int buffer_count;
xcb_xfixes_region_t region;
int have_back;
int have_fake_front;
int swap_interval;
};
struct dri2_egl_config
{
_EGLConfig base;
const __DRIconfig *dri_config;
};
static struct dri2_egl_driver *
dri2_egl_driver(_EGLDriver *drv)
{
return (struct dri2_egl_driver *) drv;
}
static struct dri2_egl_display *
dri2_egl_display(_EGLDisplay *dpy)
{
return (struct dri2_egl_display *) dpy->DriverData;
}
static struct dri2_egl_context *
dri2_egl_context(_EGLContext *ctx)
{
return (struct dri2_egl_context *) ctx;
}
static struct dri2_egl_surface *
dri2_egl_surface(_EGLSurface *surf)
{
return (struct dri2_egl_surface *) surf;
}
static struct dri2_egl_config *
dri2_egl_config(_EGLConfig *conf)
{
return (struct dri2_egl_config *) conf;
}
EGLint dri2_to_egl_attribute_map[] = {
0,
EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
0, /* __DRI_ATTRIB_LUMINANCE_SIZE */
EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
0, /* __DRI_ATTRIB_RENDER_TYPE, */
0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
0, /* __DRI_ATTRIB_CONFORMANT */
0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
0, /* __DRI_ATTRIB_STEREO */
0, /* __DRI_ATTRIB_AUX_BUFFERS */
0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
0, /* __DRI_ATTRIB_FLOAT_MODE */
0, /* __DRI_ATTRIB_RED_MASK */
0, /* __DRI_ATTRIB_GREEN_MASK */
0, /* __DRI_ATTRIB_BLUE_MASK */
0, /* __DRI_ATTRIB_ALPHA_MASK */
EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
0, /* __DRI_ATTRIB_SWAP_METHOD */
EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
0, /* __DRI_ATTRIB_YINVERTED */
};
static void
dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id)
{
struct dri2_egl_config *conf;
struct dri2_egl_display *dri2_dpy;
unsigned int attrib, value, double_buffer;
EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
int i;
dri2_dpy = disp->DriverData;
conf = malloc(sizeof *conf);
if (conf == NULL)
return;
conf->dri_config = dri_config;
_eglInitConfig(&conf->base, disp, id);
i = 0;
while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
switch (attrib) {
case 0:
break;
case __DRI_ATTRIB_RENDER_TYPE:
if (value & __DRI_ATTRIB_RGBA_BIT)
value = EGL_RGB_BUFFER;
else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
value = EGL_LUMINANCE_BUFFER;
else
/* not valid */;
_eglSetConfigKey(&conf->base, EGL_COLOR_BUFFER_TYPE, value);
break;
case __DRI_ATTRIB_CONFIG_CAVEAT:
if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
value = EGL_NON_CONFORMANT_CONFIG;
else if (value & __DRI_ATTRIB_SLOW_BIT)
value = EGL_SLOW_CONFIG;
else
value = EGL_NONE;
_eglSetConfigKey(&conf->base, EGL_CONFIG_CAVEAT, value);
break;
case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
bind_to_texture_rgb = value;
break;
case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
bind_to_texture_rgba = value;
break;
case __DRI_ATTRIB_DOUBLE_BUFFER:
double_buffer = value;
break;
default:
key = dri2_to_egl_attribute_map[attrib];
if (key != 0)
_eglSetConfigKey(&conf->base, key, value);
break;
}
}
/* EGL_SWAP_BEHAVIOR_PRESERVED_BIT */
if (double_buffer) {
/* FIXME: Figure out how to get the visual ID and types */
_eglSetConfigKey(&conf->base, EGL_SURFACE_TYPE, EGL_WINDOW_BIT);
_eglSetConfigKey(&conf->base, EGL_NATIVE_VISUAL_ID, 0x21);
_eglSetConfigKey(&conf->base, EGL_NATIVE_VISUAL_TYPE,
XCB_VISUAL_CLASS_TRUE_COLOR);
} else {
_eglSetConfigKey(&conf->base,
EGL_SURFACE_TYPE, EGL_PIXMAP_BIT | EGL_PBUFFER_BIT);
_eglSetConfigKey(&conf->base,
EGL_BIND_TO_TEXTURE_RGB, bind_to_texture_rgb);
_eglSetConfigKey(&conf->base,
EGL_BIND_TO_TEXTURE_RGBA, bind_to_texture_rgba);
}
/* EGL_OPENGL_ES_BIT, EGL_OPENVG_BIT, EGL_OPENGL_ES2_BIT */
_eglSetConfigKey(&conf->base, EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT);
_eglSetConfigKey(&conf->base, EGL_CONFORMANT, EGL_OPENGL_BIT);
if (!_eglValidateConfig(&conf->base, EGL_FALSE)) {
_eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
free(conf);
return;
}
_eglAddConfig(disp, &conf->base);
}
/**
* 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;
int i;
dri2_surf->buffer_count = count;
dri2_surf->have_fake_front = 0;
dri2_surf->have_back = 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;
if (dri2_surf->buffers[i].attachment == __DRI_BUFFER_FAKE_FRONT_LEFT)
dri2_surf->have_fake_front = 1;
if (dri2_surf->buffers[i].attachment == __DRI_BUFFER_BACK_LEFT)
dri2_surf->have_back = 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;
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 void
dri2_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
{
/* FIXME: Does EGL support front buffer rendering at all? */
#if 0
struct dri2_egl_surface *dri2_surf = loaderPrivate;
dri2WaitGL(dri2_surf);
#endif
}
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;
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;
}
#ifdef GLX_USE_TLS
static const char dri_driver_format[] = "%.*s/tls/%.*s_dri.so";
#else
static const char dri_driver_format[] = "%.*s/%.*s_dri.so";
#endif
static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
/**
* Called via eglInitialize(), GLX_drv->API.Initialize().
*/
static EGLBoolean
dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp,
EGLint *major, EGLint *minor)
{
const __DRIextension **extensions;
const __DRIconfig **driver_configs;
struct dri2_egl_display *dri2_dpy;
char path[PATH_MAX], *search_paths, *p, *next, *end;
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 = NULL;
xcb_dri2_connect_cookie_t connect_cookie;
xcb_dri2_authenticate_reply_t *authenticate;
xcb_dri2_authenticate_cookie_t authenticate_cookie;
xcb_generic_error_t *error;
drm_magic_t magic;
xcb_screen_iterator_t s;
int i;
dri2_dpy = malloc(sizeof *dri2_dpy);
if (!dri2_dpy)
return _eglError(EGL_BAD_ALLOC, "eglInitialize");
disp->DriverData = (void *) dri2_dpy;
dri2_dpy->conn = XGetXCBConnection(disp->NativeDisplay);
if (!dri2_dpy->conn) {
dri2_dpy->conn = xcb_connect(0, 0);
if (!dri2_dpy->conn) {
_eglLog(_EGL_WARNING, "DRI2: xcb_connect failed");
free(dri2_dpy);
return EGL_FALSE;
}
}
xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id);
xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id);
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_FATAL, "DRI2: failed to query xfixes version");
free(error);
goto handle_error;
}
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_FATAL, "DRI2: failed to query version");
free(error);
goto handle_error;
}
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->driver_name_length == 0 && connect->device_name_length == 0) {
_eglLog(_EGL_FATAL, "DRI2: failed to authenticate");
goto handle_error;
}
search_paths = NULL;
if (geteuid() == getuid()) {
/* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
search_paths = getenv("LIBGL_DRIVERS_PATH");
}
if (search_paths == NULL)
search_paths = DEFAULT_DRIVER_DIR;
dri2_dpy->driver = NULL;
end = search_paths + strlen(search_paths);
for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
next = strchr(p, ':');
if (next == NULL)
next = end;
snprintf(path, sizeof path,
dri_driver_format,
next - p, p,
xcb_dri2_connect_driver_name_length (connect),
xcb_dri2_connect_driver_name (connect));
dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
}
if (dri2_dpy->driver == NULL) {
_eglLog(_EGL_FATAL,
"DRI2: failed to open any driver (search paths %s)",
search_paths);
goto handle_error;
}
_eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
if (extensions == NULL) {
_eglLog(_EGL_FATAL,
"DRI2: driver exports no extensions (%s)", dlerror());
goto handle_error;
}
for (i = 0; extensions[i]; i++) {
if (strcmp(extensions[i]->name, __DRI_CORE) == 0)
dri2_dpy->core = (__DRIcoreExtension *) extensions[i];
if (strcmp(extensions[i]->name, __DRI_DRI2) == 0)
dri2_dpy->dri2 = (__DRIdri2Extension *) extensions[i];
}
if (dri2_dpy->core == NULL) {
_eglLog(_EGL_FATAL, "DRI2: driver has no core extension");
goto handle_error;
}
if (dri2_dpy->dri2 == NULL) {
_eglLog(_EGL_FATAL, "DRI2: driver has no dri2 extension");
goto handle_error;
}
snprintf(path, sizeof path, "%.*s",
xcb_dri2_connect_device_name_length (connect),
xcb_dri2_connect_device_name (connect));
dri2_dpy->fd = open (path, O_RDWR);
if (dri2_dpy->fd == -1) {
_eglLog(_EGL_FATAL,
"DRI2: could not open %s (%s)", path, strerror(errno));
goto handle_error;
}
if (drmGetMagic(dri2_dpy->fd, &magic)) {
_eglLog(_EGL_FATAL, "DRI2: failed to get drm magic");
goto handle_error;
}
authenticate_cookie = xcb_dri2_authenticate_unchecked (dri2_dpy->conn,
s.data->root, magic);
authenticate = xcb_dri2_authenticate_reply (dri2_dpy->conn,
authenticate_cookie, NULL);
if (authenticate == NULL || !authenticate->authenticated) {
_eglLog(_EGL_FATAL, "DRI2: failed to authenticate");
goto handle_error;
}
if (dri2_dpy->dri2_minor >= 1) {
dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER;
dri2_dpy->loader_extension.base.version = 3;
dri2_dpy->loader_extension.getBuffers = dri2_get_buffers;
dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
dri2_dpy->loader_extension.getBuffersWithFormat =
dri2_get_buffers_with_format;
} else {
dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER;
dri2_dpy->loader_extension.base.version = 2;
dri2_dpy->loader_extension.getBuffers = dri2_get_buffers;
dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
dri2_dpy->loader_extension.getBuffersWithFormat = NULL;
}
dri2_dpy->extensions[0] = &dri2_dpy->loader_extension.base;
dri2_dpy->extensions[1] = NULL;
dri2_dpy->dri_screen =
dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
&driver_configs, dri2_dpy);
if (dri2_dpy->dri_screen == NULL) {
_eglLog(_EGL_FATAL, "DRI2: failed to create dri screen");
free(dri2_dpy);
goto handle_error;
}
extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
for (i = 0; extensions[i]; i++) {
if ((strcmp(extensions[i]->name, __DRI2_FLUSH) == 0))
dri2_dpy->flush = (__DRI2flushExtension *) extensions[i];
}
if (dri2_dpy->flush == NULL) {
_eglLog(_EGL_FATAL, "DRI2: driver doesn't support the flush extension");
free(dri2_dpy);
goto handle_error;
}
for (i = 0; driver_configs[i]; i++)
dri2_add_config(disp, driver_configs[i], i + 1);
if (!disp->NumConfigs) {
_eglLog(_EGL_WARNING, "DRI2: failed to create any config");
goto handle_error;
}
disp->ClientAPIsMask = EGL_OPENGL_BIT;
/* we're supporting EGL 1.4 */
*major = 1;
*minor = 4;
free (connect);
return EGL_TRUE;
handle_error:
free(connect);
free(dri2_dpy);
return EGL_FALSE;
}
/**
* Called via eglTerminate(), drv->API.Terminate().
*/
static EGLBoolean
dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
_eglReleaseDisplayResources(drv, disp);
_eglCleanupDisplay(disp);
close(dri2_dpy->fd);
dlclose(dri2_dpy->driver);
free(dri2_dpy);
disp->DriverData = NULL;
return EGL_TRUE;
}
/**
* Called via eglCreateContext(), drv->API.CreateContext().
*/
static _EGLContext *
dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
_EGLContext *share_list, const EGLint *attrib_list)
{
struct dri2_egl_context *dri2_ctx;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
dri2_ctx = malloc(sizeof *dri2_ctx);
if (!dri2_ctx) {
_eglError(EGL_BAD_ALLOC, "eglCreateContext");
return NULL;
}
if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list)) {
free(dri2_ctx);
return NULL;
}
dri2_ctx->dri_context =
dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
dri2_config->dri_config,
dri2_ctx_shared ?
dri2_ctx_shared->dri_context : NULL,
dri2_ctx);
if (!dri2_ctx->dri_context) {
free(dri2_ctx);
return NULL;
}
return &dri2_ctx->base;
}
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);
if (_eglIsSurfaceBound(surf))
return EGL_TRUE;
(*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
xcb_dri2_destroy_drawable (dri2_dpy->conn, dri2_surf->drawable);
if (surf->Type == EGL_PBUFFER_BIT)
xcb_free_pixmap (dri2_dpy->conn, dri2_surf->drawable);
free(surf);
return EGL_TRUE;
}
/**
* Called via eglMakeCurrent(), drv->API.MakeCurrent().
*/
static EGLBoolean
dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
_EGLSurface *rsurf, _EGLContext *ctx)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
__DRIdrawable *ddraw, *rdraw;
__DRIcontext *cctx;
/* bind the new context and return the "orphaned" one */
if (!_eglBindContext(&ctx, &dsurf, &rsurf))
return EGL_FALSE;
ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
if (dsurf)
dri2_destroy_surface(drv, disp, dsurf);
if (rsurf && rsurf != dsurf)
dri2_destroy_surface(drv, disp, rsurf);
if (ctx != NULL)
dri2_dpy->core->unbindContext(dri2_egl_context(ctx)->dri_context);
return EGL_TRUE;
} else {
_eglBindContext(&ctx, &dsurf, &rsurf);
return EGL_FALSE;
}
}
/**
* 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;
dri2_surf = malloc(sizeof *dri2_surf);
if (!dri2_surf) {
_eglError(EGL_BAD_ALLOC, "eglCreateWindowSurface");
return NULL;
}
if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list)) {
free(dri2_surf);
return NULL;
}
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,
_eglGetConfigKey(conf, EGL_BUFFER_SIZE),
dri2_surf->drawable, s.data->root,
dri2_surf->base.Width, dri2_surf->base.Height);
} else {
dri2_surf->drawable = window;
}
dri2_surf->dri_drawable =
(*dri2_dpy->dri2->createNewDrawable) (dri2_dpy->dri_screen,
dri2_conf->dri_config, dri2_surf);
if (dri2_surf == NULL) {
_eglError(EGL_BAD_ALLOC, "eglCreateWindowSurface");
free(dri2_surf);
return NULL;
}
xcb_dri2_create_drawable (dri2_dpy->conn, dri2_surf->drawable);
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(dri2_surf);
free(error);
return NULL;
}
dri2_surf->base.Width = reply->width;
dri2_surf->base.Height = reply->height;
free(reply);
return &dri2_surf->base;
}
/**
* 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_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);
xcb_dri2_copy_region_cookie_t cookie;
(*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
#if 0
/* FIXME: Add support for dri swapbuffers, that'll give us swap
* interval and page flipping (at least for fullscreen windows) as
* well as the page flip event. */
#if __DRI2_FLUSH_VERSION >= 2
if (pdraw->psc->f)
(*pdraw->psc->f->flushInvalidate)(pdraw->driDrawable);
#endif
#endif
if (!dri2_surf->have_back)
return EGL_TRUE;
cookie = xcb_dri2_copy_region_unchecked(dri2_dpy->conn,
dri2_surf->drawable,
dri2_surf->region,
XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT,
XCB_DRI2_ATTACHMENT_BUFFER_BACK_LEFT);
free(xcb_dri2_copy_region_reply(dri2_dpy->conn, cookie, NULL));
return EGL_TRUE;
}
/*
* Called from eglGetProcAddress() via drv->API.GetProcAddress().
*/
static _EGLProc
dri2_get_proc_address(_EGLDriver *drv, const char *procname)
{
/* FIXME: Do we need to support lookup of EGL symbols too? */
return (_EGLProc) _glapi_get_proc_address(procname);
}
static EGLBoolean
dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
/* FIXME: If EGL allows frontbuffer rendering for window surfaces,
* we need to copy fake to real here.*/
(*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
return EGL_TRUE;
}
static EGLBoolean
dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
{
if (engine != EGL_CORE_NATIVE_ENGINE)
return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
/* glXWaitX(); */
return EGL_TRUE;
}
static void
dri2_unload(_EGLDriver *drv)
{
struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
free(dri2_drv);
}
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;
(*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;
}
/**
* This is the main entrypoint into the driver, called by libEGL.
* Create a new _EGLDriver object and init its dispatch table.
*/
_EGLDriver *
_eglMain(const char *args)
{
struct dri2_egl_driver *dri2_drv;
dri2_drv = malloc(sizeof *dri2_drv);
if (!dri2_drv)
return NULL;
_eglInitDriverFallbacks(&dri2_drv->base);
dri2_drv->base.API.Initialize = dri2_initialize;
dri2_drv->base.API.Terminate = dri2_terminate;
dri2_drv->base.API.CreateContext = dri2_create_context;
dri2_drv->base.API.MakeCurrent = dri2_make_current;
dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
dri2_drv->base.API.WaitClient = dri2_wait_client;
dri2_drv->base.API.WaitNative = dri2_wait_native;
dri2_drv->base.API.CopyBuffers = dri2_copy_buffers;
dri2_drv->base.Name = "DRI2";
dri2_drv->base.Unload = dri2_unload;
return &dri2_drv->base;
}
|