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/*
* Copyright © 2009 Corbin Simpson
* 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, 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 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 COPYRIGHT HOLDERS, AUTHORS
* AND/OR ITS 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.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*/
/*
* Authors:
* Corbin Simpson <MostAwesomeDude@gmail.com>
* Joakim Sindholt <opensource@zhasha.com>
*/
#include "radeon_drm.h"
/* Create a pipe_screen. */
struct pipe_screen* radeon_create_screen(struct drm_api* api,
int drmFB,
struct drm_create_screen_arg *arg)
{
struct radeon_winsys* winsys = radeon_pipe_winsys(drmFB);
if (getenv("RADEON_SOFTPIPE")) {
return softpipe_create_screen((struct pipe_winsys*)winsys);
} else {
struct r300_winsys* r300 = radeon_create_r300_winsys(drmFB, winsys);
FREE(winsys);
return r300_create_screen(r300);
}
}
/* Create a pipe_context. */
struct pipe_context* radeon_create_context(struct drm_api* api,
struct pipe_screen* screen)
{
if (getenv("RADEON_SOFTPIPE")) {
return radeon_create_softpipe(screen->winsys);
} else {
return r300_create_context(screen,
(struct r300_winsys*)screen->winsys);
}
}
boolean radeon_buffer_from_texture(struct drm_api* api,
struct pipe_texture* texture,
struct pipe_buffer** buffer,
unsigned* stride)
{
/* XXX fix this */
return r300_get_texture_buffer(texture, buffer, stride);
}
/* Create a buffer from a handle. */
/* XXX what's up with name? */
struct pipe_buffer* radeon_buffer_from_handle(struct drm_api* api,
struct pipe_screen* screen,
const char* name,
unsigned handle)
{
struct radeon_bo_manager* bom =
((struct radeon_winsys*)screen->winsys)->priv->bom;
struct radeon_pipe_buffer* radeon_buffer;
struct radeon_bo* bo = NULL;
bo = radeon_bo_open(bom, handle, 0, 0, 0, 0);
if (bo == NULL) {
return NULL;
}
radeon_buffer = CALLOC_STRUCT(radeon_pipe_buffer);
if (radeon_buffer == NULL) {
radeon_bo_unref(bo);
return NULL;
}
pipe_reference_init(&radeon_buffer->base.reference, 1);
radeon_buffer->base.screen = screen;
radeon_buffer->base.usage = PIPE_BUFFER_USAGE_PIXEL;
radeon_buffer->bo = bo;
return &radeon_buffer->base;
}
static struct pipe_texture*
radeon_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 = radeon_buffer_from_handle(api, screen, name, handle);
if (!buffer) {
return NULL;
}
blanket = screen->texture_blanket(screen, templ, &stride, buffer);
pipe_buffer_reference(&buffer, NULL);
return blanket;
}
static boolean radeon_shared_handle_from_texture(struct drm_api *api,
struct pipe_screen *screen,
struct pipe_texture *texture,
unsigned *stride,
unsigned *handle)
{
int retval, fd;
struct drm_gem_flink flink;
struct radeon_pipe_buffer* radeon_buffer;
struct pipe_buffer *buffer;
if (!radeon_buffer_from_texture(api, texture, &buffer, stride)) {
return FALSE;
}
radeon_buffer = (struct radeon_pipe_buffer*)buffer;
if (!radeon_buffer->flinked) {
fd = ((struct radeon_winsys*)screen->winsys)->priv->fd;
flink.handle = radeon_buffer->bo->handle;
retval = ioctl(fd, DRM_IOCTL_GEM_FLINK, &flink);
if (retval) {
debug_printf("radeon: DRM_IOCTL_GEM_FLINK failed, error %d\n",
retval);
return FALSE;
}
radeon_buffer->flink = flink.name;
radeon_buffer->flinked = TRUE;
}
*handle = radeon_buffer->flink;
return TRUE;
}
static boolean radeon_local_handle_from_texture(struct drm_api *api,
struct pipe_screen *screen,
struct pipe_texture *texture,
unsigned *stride,
unsigned *handle)
{
struct pipe_buffer *buffer;
if (!radeon_buffer_from_texture(api, texture, &buffer, stride)) {
return FALSE;
}
*handle = ((struct radeon_pipe_buffer*)buffer)->bo->handle;
pipe_buffer_reference(&buffer, NULL);
return TRUE;
}
struct drm_api drm_api_hooks = {
.create_screen = radeon_create_screen,
.create_context = radeon_create_context,
.texture_from_shared_handle = radeon_texture_from_shared_handle,
.shared_handle_from_texture = radeon_shared_handle_from_texture,
.local_handle_from_texture = radeon_local_handle_from_texture,
};
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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