diff options
Diffstat (limited to 'src/gallium/winsys/drm/radeon/core/radeon_drm.c')
| -rw-r--r-- | src/gallium/winsys/drm/radeon/core/radeon_drm.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_drm.c b/src/gallium/winsys/drm/radeon/core/radeon_drm.c new file mode 100644 index 0000000000..a4011db0b8 --- /dev/null +++ b/src/gallium/winsys/drm/radeon/core/radeon_drm.c @@ -0,0 +1,188 @@ +/* + * 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; + + buffer = radeon_buffer_from_handle(api, screen, name, handle); + if (!buffer) { + return NULL; + } + + return screen->texture_blanket(screen, templ, &stride, buffer); +} + +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 +} |