| /* |
| * 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 (debug_get_bool_option("RADEON_SOFTPIPE", FALSE)) { |
| 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 (debug_get_bool_option("RADEON_SOFTPIPE", FALSE)) { |
| 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 |
| } |