diff --git a/drm.c b/drm.c new file mode 100644 index 00000000..b4e24017 --- /dev/null +++ b/drm.c @@ -0,0 +1,163 @@ +/* + * Copyright © 2010 Kristian Høgsberg + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include +#include +#include + +#include "compositor.h" + +static void +drm_authenticate(struct wl_client *client, + struct wl_drm *drm_base, uint32_t id) +{ + struct wlsc_drm *drm = (struct wlsc_drm *) drm_base; + struct wlsc_compositor *compositor = + container_of(drm, struct wlsc_compositor, drm); + + if (compositor->authenticate(compositor, id) < 0) + wl_client_post_event(client, + (struct wl_object *) compositor->wl_display, + WL_DISPLAY_INVALID_OBJECT, 0); + else + wl_client_post_event(client, &drm->base, WL_DRM_AUTHENTICATED); +} + +static void +destroy_buffer(struct wl_resource *resource, struct wl_client *client) +{ + struct wlsc_buffer *buffer = + container_of(resource, struct wlsc_buffer, base.base); + +#if 0 + /* FIXME: Need backlink to EGL display here */ + eglDestroyImageKHR(ec->display, buffer->image); +#endif + + free(buffer); +} + +static void +buffer_destroy(struct wl_client *client, struct wl_buffer *buffer) +{ + wl_resource_destroy(&buffer->base, client); +} + +const static struct wl_buffer_interface buffer_interface = { + buffer_destroy +}; + +static void +drm_create_buffer(struct wl_client *client, struct wl_drm *drm_base, + uint32_t id, uint32_t name, int32_t width, int32_t height, + uint32_t stride, struct wl_visual *visual) +{ + struct wlsc_drm *drm = (struct wlsc_drm *) drm_base; + struct wlsc_compositor *compositor = + container_of(drm, struct wlsc_compositor, drm); + struct wlsc_buffer *buffer; + EGLint attribs[] = { + EGL_WIDTH, 0, + EGL_HEIGHT, 0, + EGL_IMAGE_STRIDE_MESA, 0, + EGL_IMAGE_FORMAT_MESA, EGL_IMAGE_FORMAT_ARGB8888_MESA, + EGL_NONE + }; + + if (visual != &compositor->argb_visual && + visual != &compositor->premultiplied_argb_visual && + visual != &compositor->rgb_visual) { + /* FIXME: Define a real exception event instead of + * abusing this one */ + wl_client_post_event(client, + (struct wl_object *) compositor->wl_display, + WL_DISPLAY_INVALID_OBJECT, 0); + fprintf(stderr, "invalid visual in create_buffer\n"); + return; + } + + buffer = malloc(sizeof *buffer); + if (buffer == NULL) { + wl_client_post_event(client, + (struct wl_object *) compositor->wl_display, + WL_DISPLAY_NO_MEMORY, 0); + return; + } + + attribs[1] = width; + attribs[3] = height; + attribs[5] = stride / 4; + + buffer->width = width; + buffer->height = height; + buffer->visual = visual; + buffer->image = eglCreateImageKHR(compositor->display, + compositor->context, + EGL_DRM_IMAGE_MESA, + (EGLClientBuffer) name, attribs); + if (buffer->image == NULL) { + /* FIXME: Define a real exception event instead of + * abusing this one */ + free(buffer); + wl_client_post_event(client, + (struct wl_object *) compositor->wl_display, + WL_DISPLAY_INVALID_OBJECT, 0); + fprintf(stderr, "failed to create image for name %d\n", name); + return; + } + + buffer->base.base.base.id = id; + buffer->base.base.base.interface = &wl_buffer_interface; + buffer->base.base.base.implementation = (void (**)(void)) + &buffer_interface; + + buffer->base.base.destroy = destroy_buffer; + + wl_client_add_resource(client, &buffer->base.base); +} + +const static struct wl_drm_interface drm_interface = { + drm_authenticate, + drm_create_buffer +}; + +static void +post_drm_device(struct wl_client *client, struct wl_object *global) +{ + struct wlsc_drm *drm = container_of(global, struct wlsc_drm, base); + + wl_client_post_event(client, global, WL_DRM_DEVICE, drm->filename); +} + +int +wlsc_drm_init(struct wlsc_compositor *ec, int fd, const char *filename) +{ + struct wlsc_drm *drm = &ec->drm; + + drm->fd = fd; + drm->filename = strdup(filename); + if (drm->filename == NULL) + return -1; + + drm->base.interface = &wl_drm_interface; + drm->base.implementation = (void (**)(void)) &drm_interface; + wl_display_add_object(ec->wl_display, &drm->base); + wl_display_add_global(ec->wl_display, &drm->base, post_drm_device); + + return 0; +}