aboutsummaryrefslogtreecommitdiffstats
path: root/compositor/compositor-drm.c
diff options
context:
space:
mode:
Diffstat (limited to 'compositor/compositor-drm.c')
-rw-r--r--compositor/compositor-drm.c383
1 files changed, 0 insertions, 383 deletions
diff --git a/compositor/compositor-drm.c b/compositor/compositor-drm.c
deleted file mode 100644
index 50f353b..0000000
--- a/compositor/compositor-drm.c
+++ /dev/null
@@ -1,383 +0,0 @@
-/*
- * Copyright © 2008-2010 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 <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-
-#define GL_GLEXT_PROTOTYPES
-#define EGL_EGLEXT_PROTOTYPES
-#include <GLES2/gl2.h>
-#include <GLES2/gl2ext.h>
-#include <EGL/egl.h>
-#include <EGL/eglext.h>
-
-#include "compositor.h"
-
-struct drm_compositor {
- struct wlsc_compositor base;
-
- struct udev *udev;
- struct wl_event_source *drm_source;
-
- struct tty *tty;
-};
-
-struct drm_output {
- struct wlsc_output base;
-
- drmModeModeInfo mode;
- uint32_t crtc_id;
- uint32_t connector_id;
- GLuint rbo[2];
- uint32_t fb_id[2];
- EGLImageKHR image[2];
- uint32_t current;
-};
-
-static void
-drm_compositor_present(struct wlsc_compositor *ec)
-{
- struct drm_compositor *c = (struct drm_compositor *) ec;
- struct drm_output *output;
-
- wl_list_for_each(output, &ec->output_list, base.link) {
- output->current ^= 1;
-
- glFramebufferRenderbuffer(GL_FRAMEBUFFER,
- GL_COLOR_ATTACHMENT0,
- GL_RENDERBUFFER,
- output->rbo[output->current]);
- glFlush();
-
- drmModePageFlip(c->base.drm.fd, output->crtc_id,
- output->fb_id[output->current ^ 1],
- DRM_MODE_PAGE_FLIP_EVENT, output);
- }
-}
-
-static void
-page_flip_handler(int fd, unsigned int frame,
- unsigned int sec, unsigned int usec, void *data)
-{
- struct wlsc_output *output = data;
- struct wlsc_compositor *compositor = output->compositor;
- uint32_t msecs;
-
- msecs = sec * 1000 + usec / 1000;
- wlsc_compositor_finish_frame(compositor, msecs);
-}
-
-static void
-on_drm_input(int fd, uint32_t mask, void *data)
-{
- drmEventContext evctx;
-
- memset(&evctx, 0, sizeof evctx);
- evctx.version = DRM_EVENT_CONTEXT_VERSION;
- evctx.page_flip_handler = page_flip_handler;
- drmHandleEvent(fd, &evctx);
-}
-
-static int
-init_egl(struct drm_compositor *ec, struct udev_device *device)
-{
- EGLint major, minor;
- const char *extensions, *filename;
- int fd;
- static const EGLint context_attribs[] = {
- EGL_CONTEXT_CLIENT_VERSION, 2,
- EGL_NONE
- };
-
- filename = udev_device_get_devnode(device);
- fd = open(filename, O_RDWR);
- if (fd < 0) {
- /* Probably permissions error */
- fprintf(stderr, "couldn't open %s, skipping\n",
- udev_device_get_devnode(device));
- return -1;
- }
-
- wlsc_drm_init(&ec->base, fd, filename);
-
- ec->base.display = eglGetDRMDisplayMESA(ec->base.drm.fd);
- if (ec->base.display == NULL) {
- fprintf(stderr, "failed to create display\n");
- return -1;
- }
-
- if (!eglInitialize(ec->base.display, &major, &minor)) {
- fprintf(stderr, "failed to initialize display\n");
- return -1;
- }
-
- extensions = eglQueryString(ec->base.display, EGL_EXTENSIONS);
- if (!strstr(extensions, "EGL_KHR_surfaceless_opengl")) {
- fprintf(stderr, "EGL_KHR_surfaceless_opengl not available\n");
- return -1;
- }
-
- if (!eglBindAPI(EGL_OPENGL_ES_API)) {
- fprintf(stderr, "failed to bind api EGL_OPENGL_ES_API\n");
- return -1;
- }
-
- ec->base.context = eglCreateContext(ec->base.display, NULL,
- EGL_NO_CONTEXT, context_attribs);
- if (ec->base.context == NULL) {
- fprintf(stderr, "failed to create context\n");
- return -1;
- }
-
- if (!eglMakeCurrent(ec->base.display, EGL_NO_SURFACE,
- EGL_NO_SURFACE, ec->base.context)) {
- fprintf(stderr, "failed to make context current\n");
- return -1;
- }
-
- return 0;
-}
-
-static drmModeModeInfo builtin_1024x768 = {
- 63500, /* clock */
- 1024, 1072, 1176, 1328, 0,
- 768, 771, 775, 798, 0,
- 59920,
- DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC,
- 0,
- "1024x768"
-};
-
-static int
-create_output_for_connector(struct drm_compositor *ec,
- drmModeRes *resources,
- drmModeConnector *connector)
-{
- struct drm_output *output;
- drmModeEncoder *encoder;
- drmModeModeInfo *mode;
- int i, ret;
- EGLint handle, stride, attribs[] = {
- EGL_WIDTH, 0,
- EGL_HEIGHT, 0,
- EGL_DRM_BUFFER_FORMAT_MESA, EGL_DRM_BUFFER_FORMAT_ARGB32_MESA,
- EGL_DRM_BUFFER_USE_MESA, EGL_DRM_BUFFER_USE_SCANOUT_MESA,
- EGL_NONE
- };
-
- output = malloc(sizeof *output);
- if (output == NULL)
- return -1;
-
- if (connector->count_modes > 0)
- mode = &connector->modes[0];
- else
- mode = &builtin_1024x768;
-
- encoder = drmModeGetEncoder(ec->base.drm.fd, connector->encoders[0]);
- if (encoder == NULL) {
- fprintf(stderr, "No encoder for connector.\n");
- return -1;
- }
-
- for (i = 0; i < resources->count_crtcs; i++) {
- if (encoder->possible_crtcs & (1 << i))
- break;
- }
- if (i == resources->count_crtcs) {
- fprintf(stderr, "No usable crtc for encoder.\n");
- return -1;
- }
-
- memset(output, 0, sizeof *output);
- wlsc_output_init(&output->base, &ec->base, 0, 0,
- mode->hdisplay, mode->vdisplay);
-
- output->crtc_id = resources->crtcs[i];
- output->connector_id = connector->connector_id;
- output->mode = *mode;
-
- drmModeFreeEncoder(encoder);
-
- glGenRenderbuffers(2, output->rbo);
- for (i = 0; i < 2; i++) {
- glBindRenderbuffer(GL_RENDERBUFFER, output->rbo[i]);
-
- attribs[1] = output->base.width;
- attribs[3] = output->base.height;
- output->image[i] =
- eglCreateDRMImageMESA(ec->base.display, attribs);
- glEGLImageTargetRenderbufferStorageOES(GL_RENDERBUFFER,
- output->image[i]);
- eglExportDRMImageMESA(ec->base.display, output->image[i],
- NULL, &handle, &stride);
-
- ret = drmModeAddFB(ec->base.drm.fd,
- output->base.width, output->base.height,
- 32, 32, stride, handle, &output->fb_id[i]);
- if (ret) {
- fprintf(stderr, "failed to add fb %d: %m\n", i);
- return -1;
- }
- }
-
- output->current = 0;
- glFramebufferRenderbuffer(GL_FRAMEBUFFER,
- GL_COLOR_ATTACHMENT0,
- GL_RENDERBUFFER,
- output->rbo[output->current]);
- ret = drmModeSetCrtc(ec->base.drm.fd, output->crtc_id,
- output->fb_id[output->current ^ 1], 0, 0,
- &output->connector_id, 1, &output->mode);
- if (ret) {
- fprintf(stderr, "failed to set mode: %m\n");
- return -1;
- }
-
- wl_list_insert(ec->base.output_list.prev, &output->base.link);
-
- return 0;
-}
-
-static int
-create_outputs(struct drm_compositor *ec, int option_connector)
-{
- drmModeConnector *connector;
- drmModeRes *resources;
- int i;
-
- resources = drmModeGetResources(ec->base.drm.fd);
- if (!resources) {
- fprintf(stderr, "drmModeGetResources failed\n");
- return -1;
- }
-
- for (i = 0; i < resources->count_connectors; i++) {
- connector = drmModeGetConnector(ec->base.drm.fd, resources->connectors[i]);
- if (connector == NULL)
- continue;
-
- if (connector->connection == DRM_MODE_CONNECTED &&
- (option_connector == 0 ||
- connector->connector_id == option_connector))
- if (create_output_for_connector(ec, resources, connector) < 0)
- return -1;
-
- drmModeFreeConnector(connector);
- }
-
- if (wl_list_empty(&ec->base.output_list)) {
- fprintf(stderr, "No currently active connector found.\n");
- return -1;
- }
-
- drmModeFreeResources(resources);
-
- return 0;
-}
-
-static int
-drm_authenticate(struct wlsc_compositor *c, uint32_t id)
-{
- struct drm_compositor *ec = (struct drm_compositor *) c;
-
- return drmAuthMagic(ec->base.drm.fd, id);
-}
-
-static void
-drm_destroy(struct wlsc_compositor *ec)
-{
- struct drm_compositor *d = (struct drm_compositor *) ec;
-
- tty_destroy(d->tty);
-
- free(d);
-}
-
-struct wlsc_compositor *
-drm_compositor_create(struct wl_display *display, int connector)
-{
- struct drm_compositor *ec;
- struct udev_enumerate *e;
- struct udev_list_entry *entry;
- struct udev_device *device;
- const char *path;
- struct wl_event_loop *loop;
-
- ec = malloc(sizeof *ec);
- if (ec == NULL)
- return NULL;
-
- memset(ec, 0, sizeof *ec);
- ec->udev = udev_new();
- if (ec->udev == NULL) {
- fprintf(stderr, "failed to initialize udev context\n");
- return NULL;
- }
-
- e = udev_enumerate_new(ec->udev);
- udev_enumerate_add_match_subsystem(e, "drm");
- udev_enumerate_add_match_property(e, "WAYLAND_SEAT", "1");
- udev_enumerate_scan_devices(e);
- device = NULL;
- udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
- path = udev_list_entry_get_name(entry);
- device = udev_device_new_from_syspath(ec->udev, path);
- break;
- }
- udev_enumerate_unref(e);
-
- if (device == NULL) {
- fprintf(stderr, "no drm device found\n");
- return NULL;
- }
-
- ec->base.wl_display = display;
- if (init_egl(ec, device) < 0) {
- fprintf(stderr, "failed to initialize egl\n");
- return NULL;
- }
-
- ec->base.destroy = drm_destroy;
- ec->base.authenticate = drm_authenticate;
- ec->base.present = drm_compositor_present;
- ec->base.create_buffer = wlsc_drm_buffer_create;
- ec->base.focus = 1;
-
- /* Can't init base class until we have a current egl context */
- if (wlsc_compositor_init(&ec->base, display) < 0)
- return NULL;
-
- if (create_outputs(ec, connector) < 0) {
- fprintf(stderr, "failed to create output for %s\n", path);
- return NULL;
- }
-
- evdev_input_add_devices(&ec->base, ec->udev);
-
- loop = wl_display_get_event_loop(ec->base.wl_display);
- ec->drm_source =
- wl_event_loop_add_fd(loop, ec->base.drm.fd,
- WL_EVENT_READABLE, on_drm_input, ec);
- ec->tty = tty_create(&ec->base);
-
- return &ec->base;
-}
generated by cgit v1.2.3-70-g09d2 (git 2.52.0) at 2026-01-04 15:01:43 +0000