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/*
* Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
*
* 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
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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:
* Jerome Glisse
* Corbin Simpson <MostAwesomeDude@gmail.com>
* Joakim Sindholt <opensource@zhasha.com>
*/
#include <sys/ioctl.h>
#include "trace/tr_drm.h"
#include "util/u_inlines.h"
#include "util/u_debug.h"
#include "state_tracker/drm_api.h"
#include "radeon_priv.h"
#include "r600_screen.h"
#include "r600_texture.h"
static struct pipe_screen *r600_drm_create_screen(struct drm_api* api, int drmfd,
struct drm_create_screen_arg *arg)
{
struct radeon *rw = radeon_new(drmfd, 0);
if (rw == NULL)
return NULL;
return radeon_create_screen(rw);
}
static boolean r600_buffer_from_texture(struct drm_api *api,
struct pipe_screen *screen,
struct pipe_texture *texture,
struct pipe_buffer **buffer,
unsigned *stride)
{
return r600_get_texture_buffer(screen, texture, buffer, stride);
}
static struct pipe_buffer *r600_buffer_from_handle(struct drm_api *api,
struct pipe_screen *screen,
const char *name,
unsigned handle)
{
struct radeon *rw = (struct radeon*)screen->winsys;
struct r600_pipe_buffer *rbuffer;
struct radeon_bo *bo = NULL;
bo = radeon_bo(rw, handle, 0, 0, NULL);
if (bo == NULL) {
return NULL;
}
rbuffer = calloc(1, sizeof(struct r600_pipe_buffer));
if (rbuffer == NULL) {
radeon_bo_decref(rw, bo);
return NULL;
}
pipe_reference_init(&rbuffer->base.reference, 1);
rbuffer->base.screen = screen;
rbuffer->base.usage = PIPE_BUFFER_USAGE_PIXEL;
rbuffer->bo = bo;
return &rbuffer->base;
}
static struct pipe_texture *r600_texture_from_shared_handle(struct drm_api *api,
struct pipe_screen *screen,
struct pipe_texture *templ,
const char *name,
unsigned stride,
unsigned handle)
{
struct pipe_buffer *buffer;
struct pipe_texture *blanket;
buffer = r600_buffer_from_handle(api, screen, name, handle);
if (buffer == NULL) {
return NULL;
}
blanket = screen->texture_blanket(screen, templ, &stride, buffer);
pipe_buffer_reference(&buffer, NULL);
return blanket;
}
static boolean r600_shared_handle_from_texture(struct drm_api *api,
struct pipe_screen *screen,
struct pipe_texture *texture,
unsigned *stride,
unsigned *handle)
{
struct radeon *rw = (struct radeon*)screen->winsys;
struct drm_gem_flink flink;
struct r600_pipe_buffer* rbuffer;
struct pipe_buffer *buffer = NULL;
int r;
if (!r600_buffer_from_texture(api, screen, texture, &buffer, stride)) {
return FALSE;
}
rbuffer = (struct r600_pipe_buffer*)buffer;
if (!rbuffer->flink) {
flink.handle = rbuffer->bo->handle;
r = ioctl(rw->fd, DRM_IOCTL_GEM_FLINK, &flink);
if (r) {
return FALSE;
}
rbuffer->flink = flink.name;
}
*handle = rbuffer->flink;
return TRUE;
}
static boolean r600_local_handle_from_texture(struct drm_api *api,
struct pipe_screen *screen,
struct pipe_texture *texture,
unsigned *stride,
unsigned *handle)
{
struct pipe_buffer *buffer = NULL;
if (!r600_buffer_from_texture(api, screen, texture, &buffer, stride)) {
return FALSE;
}
*handle = ((struct r600_pipe_buffer*)buffer)->bo->handle;
pipe_buffer_reference(&buffer, NULL);
return TRUE;
}
static void r600_drm_api_destroy(struct drm_api *api)
{
return;
}
struct drm_api drm_api_hooks = {
.name = "r600",
.driver_name = "r600",
.create_screen = r600_drm_create_screen,
.texture_from_shared_handle = r600_texture_from_shared_handle,
.shared_handle_from_texture = r600_shared_handle_from_texture,
.local_handle_from_texture = r600_local_handle_from_texture,
.destroy = r600_drm_api_destroy,
};
struct drm_api* drm_api_create()
{
#ifdef DEBUG
return trace_drm_create(&drm_api_hooks);
#else
return &drm_api_hooks;
#endif
}
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