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/**********************************************************
* Copyright 2009 VMware, Inc. All rights reserved.
*
* 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 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 "pipe/p_compiler.h"
#include "util/u_inlines.h"
#include "util/u_memory.h"
#include "util/u_format.h"
#include "vmw_screen.h"
#include "vmw_surface.h"
#include "svga_drm_public.h"
#include "state_tracker/drm_driver.h"
#include "vmwgfx_drm.h"
#include <xf86drm.h>
#include <stdio.h>
struct dri1_api_version {
int major;
int minor;
int patch_level;
};
static struct svga_winsys_surface *
vmw_drm_surface_from_handle(struct svga_winsys_screen *sws,
struct winsys_handle *whandle,
SVGA3dSurfaceFormat *format);
static boolean
vmw_drm_surface_get_handle(struct svga_winsys_screen *sws,
struct svga_winsys_surface *surface,
unsigned stride,
struct winsys_handle *whandle);
static struct dri1_api_version drm_required = { 1, 0, 0 };
static struct dri1_api_version drm_compat = { 1, 0, 0 };
static struct dri1_api_version drm_scanout = { 0, 9, 0 };
static boolean
vmw_dri1_check_version(const struct dri1_api_version *cur,
const struct dri1_api_version *required,
const struct dri1_api_version *compat,
const char component[])
{
if (cur->major > required->major && cur->major <= compat->major)
return TRUE;
if (cur->major == required->major && cur->minor >= required->minor)
return TRUE;
fprintf(stderr, "%s version failure.\n", component);
fprintf(stderr, "%s version is %d.%d.%d and this driver can only work\n"
"with versions %d.%d.x through %d.x.x.\n",
component,
cur->major,
cur->minor,
cur->patch_level, required->major, required->minor, compat->major);
return FALSE;
}
/* This is actually the entrypoint to the entire driver,
* called by the target bootstrap code.
*/
struct svga_winsys_screen *
svga_drm_winsys_screen_create(int fd)
{
struct vmw_winsys_screen *vws;
boolean use_old_scanout_flag = FALSE;
struct dri1_api_version drm_ver;
drmVersionPtr ver;
ver = drmGetVersion(fd);
if (ver == NULL)
return NULL;
drm_ver.major = ver->version_major;
drm_ver.minor = ver->version_minor;
drm_ver.patch_level = 0; /* ??? */
drmFreeVersion(ver);
if (!vmw_dri1_check_version(&drm_ver, &drm_required,
&drm_compat, "vmwgfx drm driver"))
return NULL;
if (!vmw_dri1_check_version(&drm_ver, &drm_scanout,
&drm_compat, "use old scanout field (not a error)"))
use_old_scanout_flag = TRUE;
vws = vmw_winsys_create( fd, use_old_scanout_flag );
if (!vws)
goto out_no_vws;
/* XXX do this properly */
vws->base.surface_from_handle = vmw_drm_surface_from_handle;
vws->base.surface_get_handle = vmw_drm_surface_get_handle;
return &vws->base;
out_no_vws:
return NULL;
}
static INLINE boolean
vmw_dri1_intersect_src_bbox(struct drm_clip_rect *dst,
int dst_x,
int dst_y,
const struct drm_clip_rect *src,
const struct drm_clip_rect *bbox)
{
int xy1;
int xy2;
xy1 = ((int)src->x1 > (int)bbox->x1 + dst_x) ? src->x1 :
(int)bbox->x1 + dst_x;
xy2 = ((int)src->x2 < (int)bbox->x2 + dst_x) ? src->x2 :
(int)bbox->x2 + dst_x;
if (xy1 >= xy2 || xy1 < 0)
return FALSE;
dst->x1 = xy1;
dst->x2 = xy2;
xy1 = ((int)src->y1 > (int)bbox->y1 + dst_y) ? src->y1 :
(int)bbox->y1 + dst_y;
xy2 = ((int)src->y2 < (int)bbox->y2 + dst_y) ? src->y2 :
(int)bbox->y2 + dst_y;
if (xy1 >= xy2 || xy1 < 0)
return FALSE;
dst->y1 = xy1;
dst->y2 = xy2;
return TRUE;
}
static struct svga_winsys_surface *
vmw_drm_surface_from_handle(struct svga_winsys_screen *sws,
struct winsys_handle *whandle,
SVGA3dSurfaceFormat *format)
{
struct vmw_svga_winsys_surface *vsrf;
struct svga_winsys_surface *ssrf;
struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
union drm_vmw_surface_reference_arg arg;
struct drm_vmw_surface_arg *req = &arg.req;
struct drm_vmw_surface_create_req *rep = &arg.rep;
int ret;
int i;
/**
* The vmware device specific handle is the hardware SID.
* FIXME: We probably want to move this to the ioctl implementations.
*/
memset(&arg, 0, sizeof(arg));
req->sid = whandle->handle;
ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_REF_SURFACE,
&arg, sizeof(arg));
if (ret) {
fprintf(stderr, "Failed referencing shared surface. SID %d.\n"
"Error %d (%s).\n",
whandle->handle, ret, strerror(-ret));
return NULL;
}
if (rep->mip_levels[0] != 1) {
fprintf(stderr, "Incorrect number of mipmap levels on shared surface."
" SID %d, levels %d\n",
whandle->handle, rep->mip_levels[0]);
goto out_mip;
}
for (i=1; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
if (rep->mip_levels[i] != 0) {
fprintf(stderr, "Incorrect number of faces levels on shared surface."
" SID %d, face %d present.\n",
whandle->handle, i);
goto out_mip;
}
}
vsrf = CALLOC_STRUCT(vmw_svga_winsys_surface);
if (!vsrf)
goto out_mip;
pipe_reference_init(&vsrf->refcnt, 1);
p_atomic_set(&vsrf->validated, 0);
vsrf->screen = vws;
vsrf->sid = whandle->handle;
ssrf = svga_winsys_surface(vsrf);
*format = rep->format;
return ssrf;
out_mip:
vmw_ioctl_surface_destroy(vws, whandle->handle);
return NULL;
}
static boolean
vmw_drm_surface_get_handle(struct svga_winsys_screen *sws,
struct svga_winsys_surface *surface,
unsigned stride,
struct winsys_handle *whandle)
{
struct vmw_svga_winsys_surface *vsrf;
if (!surface)
return FALSE;
vsrf = vmw_svga_winsys_surface(surface);
whandle->handle = vsrf->sid;
whandle->stride = stride;
return TRUE;
}
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