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xserver-multidpi/hw/kdrive/ephyr/ephyrhostglx.c

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/*
* Xephyr - A kdrive X server thats runs in a host X window.
* Authored by Matthew Allum <mallum@openedhand.com>
*
* Copyright © 2007 OpenedHand Ltd
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of OpenedHand Ltd not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. OpenedHand Ltd makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* OpenedHand Ltd DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL OpenedHand Ltd BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* a lots of the content of this file has been adapted from the mesa source
* code.
* Authors:
* Dodji Seketeli <dodji@openedhand.com>
*/
#ifdef HAVE_CONFIG_H
#include <kdrive-config.h>
#endif
#include <X11/Xdefs.h>
#include <X11/Xmd.h>
#include <GL/glxproto.h>
#include <xcb/glx.h>
#include "ephyrhostglx.h"
#define _HAVE_XALLOC_DECLS
#include "ephyrlog.h"
#include "hostx.h"
static int glx_major, glx_minor;
enum VisualConfRequestType {
EPHYR_GET_FB_CONFIG,
EPHYR_VENDOR_PRIV_GET_FB_CONFIG_SGIX,
EPHYR_GET_VISUAL_CONFIGS
};
static Bool ephyrHostGLXGetVisualConfigsInternal
(enum VisualConfRequestType a_type,
xcb_glx_get_visual_configs_reply_t *reply,
int32_t a_screen,
int32_t *a_num_visuals,
int32_t *a_num_props,
int32_t *a_props_buf_size,
int32_t **a_props_buf);
Bool
ephyrHostGLXQueryVersion(int *a_major, int *a_minor)
{
Bool is_ok = FALSE;
xcb_connection_t *conn = hostx_get_xcbconn();
xcb_glx_query_version_cookie_t cookie;
xcb_glx_query_version_reply_t *reply;
EPHYR_RETURN_VAL_IF_FAIL(a_major && a_minor, FALSE);
EPHYR_LOG("enter\n");
if (glx_major) {
*a_major = glx_major;
*a_minor = glx_minor;
return TRUE;
}
/* Send the glXQueryVersion request */
cookie = xcb_glx_query_version(conn, 2, 1);
reply = xcb_glx_query_version_reply(conn, cookie, NULL);
if (!reply)
goto out;
*a_major = reply->major_version;
*a_minor = reply->minor_version;
free(reply);
EPHYR_LOG("major:%d, minor:%d\n", *a_major, *a_minor);
is_ok = TRUE;
out:
EPHYR_LOG("leave\n");
return is_ok;
}
Bool
ephyrHostGLXGetString(int a_context_tag,
int a_string_name,
char **a_string)
{
Bool is_ok = FALSE;
xcb_connection_t *conn = hostx_get_xcbconn();
xcb_glx_get_string_cookie_t cookie;
xcb_glx_get_string_reply_t *reply;
EPHYR_RETURN_VAL_IF_FAIL(conn && a_string, FALSE);
EPHYR_LOG("enter\n");
cookie = xcb_glx_get_string(conn, a_context_tag, a_string_name);
reply = xcb_glx_get_string_reply(conn, cookie, NULL);
if (!reply)
goto out;
*a_string = malloc(reply->n + 1);
memcpy(*a_string, xcb_glx_get_string_string(reply), reply->n);
(*a_string)[reply->n] = '\0';
free(reply);
is_ok = TRUE;
out:
EPHYR_LOG("leave\n");
return is_ok;
}
Bool ephyrHostGLXQueryServerString(int a_screen_number,
int a_string_name,
char **a_string)
{
Bool is_ok = FALSE;
xcb_connection_t *conn = hostx_get_xcbconn();
int default_screen = hostx_get_screen();
xcb_glx_query_server_string_cookie_t cookie;
xcb_glx_query_server_string_reply_t *reply;
EPHYR_RETURN_VAL_IF_FAIL(conn && a_string, FALSE);
EPHYR_LOG("enter\n");
cookie = xcb_glx_query_server_string(conn, default_screen, a_string_name);
reply = xcb_glx_query_server_string_reply(conn, cookie, NULL);
if (!reply)
goto out;
*a_string = malloc(reply->str_len + 1);
memcpy(*a_string, xcb_glx_query_server_string_string(reply), reply->str_len);
(*a_string)[reply->str_len] = '\0';
free(reply);
is_ok = TRUE;
out:
EPHYR_LOG("leave\n");
return is_ok;
}
static Bool
ephyrHostGLXGetVisualConfigsInternal(enum VisualConfRequestType a_type,
xcb_glx_get_visual_configs_reply_t *reply,
int32_t a_screen,
int32_t * a_num_visuals,
int32_t * a_num_props,
int32_t * a_props_buf_size,
int32_t ** a_props_buf)
{
Bool is_ok = FALSE;
int num_props = 0, num_visuals = 0, props_buf_size = 0;
int props_per_visual_size = 0;
int32_t *props_buf = NULL;
if (!reply->num_visuals) {
EPHYR_LOG_ERROR("screen does not support GL rendering\n");
goto out;
}
num_visuals = reply->num_visuals;
num_props = reply->num_properties;
if (a_type != EPHYR_GET_VISUAL_CONFIGS) {
num_props *= 2;
}
props_per_visual_size = num_props * sizeof(uint32_t);
props_buf_size = props_per_visual_size * reply->num_visuals;
props_buf = malloc(props_buf_size);
if (!props_buf)
goto out;
memcpy(props_buf, xcb_glx_get_visual_configs_property_list(reply),
props_buf_size);
*a_num_visuals = num_visuals;
*a_num_props = reply->num_properties;
*a_props_buf_size = props_buf_size;
*a_props_buf = props_buf;
is_ok = TRUE;
out:
return is_ok;
}
Bool
ephyrHostGLXGetVisualConfigs(int32_t a_screen,
int32_t * a_num_visuals,
int32_t * a_num_props,
int32_t * a_props_buf_size, int32_t ** a_props_buf)
{
Bool is_ok = FALSE;
xcb_glx_get_visual_configs_cookie_t cookie;
xcb_glx_get_visual_configs_reply_t *reply;
xcb_connection_t *conn = hostx_get_xcbconn();
int screen = hostx_get_screen();
EPHYR_LOG("enter\n");
cookie = xcb_glx_get_visual_configs(conn, screen);
reply = xcb_glx_get_visual_configs_reply(conn, cookie, NULL);
if (!reply)
goto out;
is_ok = ephyrHostGLXGetVisualConfigsInternal
(EPHYR_GET_VISUAL_CONFIGS,
reply,
a_screen,
a_num_visuals,
a_num_props,
a_props_buf_size,
a_props_buf);
out:
free(reply);
EPHYR_LOG("leave:%d\n", is_ok);
return is_ok;
}
Bool
ephyrHostGLXVendorPrivGetFBConfigsSGIX(int a_screen,
int32_t * a_num_visuals,
int32_t * a_num_props,
int32_t * a_props_buf_size,
int32_t ** a_props_buf)
{
Bool is_ok=FALSE;
xcb_connection_t *conn = hostx_get_xcbconn();
int screen = hostx_get_screen();
xcb_glx_vendor_private_with_reply_cookie_t cookie;
union {
xcb_glx_vendor_private_with_reply_reply_t *vprep;
xcb_glx_get_visual_configs_reply_t *rep;
} reply;
EPHYR_LOG("enter\n");
cookie = xcb_glx_vendor_private_with_reply(conn,
X_GLXvop_GetFBConfigsSGIX,
0, 4, (uint8_t *)&screen);
reply.vprep = xcb_glx_vendor_private_with_reply_reply(conn, cookie, NULL);
if (!reply.vprep)
goto out;
is_ok = ephyrHostGLXGetVisualConfigsInternal
(EPHYR_VENDOR_PRIV_GET_FB_CONFIG_SGIX,
reply.rep,
a_screen,
a_num_visuals,
a_num_props,
a_props_buf_size,
a_props_buf);
out:
free(reply.vprep);
EPHYR_LOG("leave\n");
return is_ok;
}
Bool
ephyrHostGLXSendClientInfo(int32_t a_major, int32_t a_minor,
const char *a_extension_list)
{
xcb_connection_t *conn = hostx_get_xcbconn();
int size;
EPHYR_RETURN_VAL_IF_FAIL(conn && a_extension_list, FALSE);
size = strlen (a_extension_list) + 1;
xcb_glx_client_info(conn, a_major, a_minor, size, a_extension_list);
return TRUE;
}
Bool
ephyrHostGLXCreateContext(int a_screen,
int a_generic_id,
int a_context_id,
int a_share_list_ctxt_id,
int a_render_type,
Bool a_direct,
int code)
{
xcb_connection_t *conn = hostx_get_xcbconn();
Bool is_ok = FALSE;
int remote_context_id = 0;
EPHYR_LOG("enter. screen:%d, generic_id:%d, contextid:%d, rendertype:%d, "
"direct:%d\n", a_screen, a_generic_id, a_context_id,
a_render_type, a_direct);
if (!hostx_allocate_resource_id_peer(a_context_id, &remote_context_id)) {
EPHYR_LOG_ERROR("failed to peer the context id %d host X",
remote_context_id);
goto out;
}
switch (code) {
case X_GLXCreateContext: {
xcb_glx_create_context(conn,
remote_context_id,
a_generic_id,
hostx_get_screen(),
a_share_list_ctxt_id,
a_direct);
}
case X_GLXCreateNewContext: {
xcb_glx_create_new_context(conn,
remote_context_id,
a_generic_id,
hostx_get_screen(),
a_render_type,
a_share_list_ctxt_id,
a_direct);
}
default:
/* This should never be reached !*/
EPHYR_LOG("Internal error! Invalid CreateContext code!\n");
}
is_ok = TRUE;
out:
EPHYR_LOG("leave\n");
return is_ok;
}
Bool
ephyrHostDestroyContext(int a_ctxt_id)
{
xcb_connection_t *conn = hostx_get_xcbconn();
Bool is_ok = FALSE;
int remote_ctxt_id = 0;
EPHYR_LOG("enter:%d\n", a_ctxt_id);
if (!hostx_get_resource_id_peer(a_ctxt_id, &remote_ctxt_id)) {
EPHYR_LOG_ERROR("failed to get remote glx ctxt id\n");
goto out;
}
EPHYR_LOG("host context id:%d\n", remote_ctxt_id);
xcb_glx_destroy_context(conn, remote_ctxt_id);
is_ok = TRUE;
out:
EPHYR_LOG("leave\n");
return is_ok;
}
Bool
ephyrHostGLXMakeCurrent(int a_drawable, int a_readable,
int a_glx_ctxt_id, int a_old_ctxt_tag, int *a_ctxt_tag)
{
xcb_connection_t *conn = hostx_get_xcbconn();
Bool is_ok = FALSE;
int remote_glx_ctxt_id = 0;
EPHYR_RETURN_VAL_IF_FAIL(a_ctxt_tag, FALSE);
EPHYR_LOG("enter. drawable:%d, read:%d, context:%d, oldtag:%d\n",
a_drawable, a_readable, a_glx_ctxt_id, a_old_ctxt_tag);
if (!hostx_get_resource_id_peer(a_glx_ctxt_id, &remote_glx_ctxt_id)) {
EPHYR_LOG_ERROR("failed to get remote glx ctxt id\n");
goto out;
}
/* If both drawables are the same, use the old MakeCurrent request.
* Otherwise, if we have GLX 1.3 or higher, use the MakeContextCurrent
* request which supports separate read and draw targets. Failing that,
* try the SGI MakeCurrentRead extension. Logic cribbed from Mesa. */
if (a_drawable == a_readable) {
xcb_glx_make_current_cookie_t cookie;
xcb_glx_make_current_reply_t *reply;
cookie = xcb_glx_make_current(conn,
a_drawable,
remote_glx_ctxt_id,
a_old_ctxt_tag);
reply = xcb_glx_make_current_reply(conn, cookie, NULL);
if (!reply)
goto out;
*a_ctxt_tag = reply->context_tag;
free(reply);
}
else if (glx_major > 1 || glx_minor >= 3) {
xcb_glx_make_context_current_cookie_t cookie;
xcb_glx_make_context_current_reply_t *reply;
cookie = xcb_glx_make_context_current(conn,
a_old_ctxt_tag,
a_drawable,
a_readable,
remote_glx_ctxt_id);
reply = xcb_glx_make_context_current_reply(conn, cookie, NULL);
if (!reply)
goto out;
*a_ctxt_tag = reply->context_tag;
free(reply);
}
else {
xcb_glx_vendor_private_with_reply_cookie_t cookie;
xcb_glx_vendor_private_with_reply_reply_t *reply;
uint32_t data[3] = {
a_drawable, a_readable, remote_glx_ctxt_id,
};
EPHYR_LOG("enter\n");
cookie = xcb_glx_vendor_private_with_reply(conn,
X_GLXvop_MakeCurrentReadSGI,
a_old_ctxt_tag,
sizeof(data),
(uint8_t *)data);
reply = xcb_glx_vendor_private_with_reply_reply(conn, cookie, NULL);
*a_ctxt_tag = reply->retval;
free(reply);
}
EPHYR_LOG("context tag:%d\n", *a_ctxt_tag);
is_ok = TRUE;
out:
EPHYR_LOG("leave\n");
return is_ok;
}
Bool
ephyrHostGetIntegerValue(int a_current_context_tag, int a_int, int *a_val)
{
xcb_connection_t *conn = hostx_get_xcbconn();
Bool is_ok = FALSE;
int size = 0;
xcb_glx_get_integerv_cookie_t cookie;
xcb_glx_get_integerv_reply_t *reply;
EPHYR_RETURN_VAL_IF_FAIL(a_val, FALSE);
EPHYR_LOG("enter\n");
cookie = xcb_glx_get_integerv(conn, a_current_context_tag, a_int);
reply = xcb_glx_get_integerv_reply(conn, cookie, NULL);
if (!reply)
goto out;
size = reply->n;
if (!size) {
EPHYR_LOG_ERROR("X_GLsop_GetIngerv failed\n");
goto out;
}
*a_val = reply->datum;
is_ok = TRUE;
out:
free(reply);
EPHYR_LOG("leave\n");
return is_ok;
}
Bool
ephyrHostIsContextDirect(int a_ctxt_id, int *a_is_direct)
{
Bool is_ok = FALSE;
xcb_connection_t *conn = hostx_get_xcbconn();
xcb_glx_is_direct_cookie_t cookie;
xcb_glx_is_direct_reply_t *reply = NULL;
int remote_glx_ctxt_id = 0;
EPHYR_LOG("enter\n");
if (!hostx_get_resource_id_peer (a_ctxt_id, &remote_glx_ctxt_id)) {
EPHYR_LOG_ERROR ("failed to get remote glx ctxt id\n");
goto out;
}
/* Send the glXIsDirect request */
cookie = xcb_glx_is_direct(conn, remote_glx_ctxt_id);
reply = xcb_glx_is_direct_reply(conn, cookie, NULL);
if (!reply) {
EPHYR_LOG_ERROR("fail in reading reply from host\n");
goto out;
}
*a_is_direct = reply->is_direct;
is_ok = TRUE;
out:
free(reply);
EPHYR_LOG("leave\n");
return is_ok;
}
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