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Atomic modesetting
This commit is contained in:
Scott Anderson
Drew DeVault
parent
913829e381
commit
af67966d92
11 changed files with 350 additions and 72 deletions
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@ -23,28 +23,33 @@
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#include "backend/drm-util.h"
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bool wlr_drm_check_features(struct wlr_backend_state *drm) {
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extern const struct wlr_drm_interface legacy_iface;
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extern const struct wlr_drm_interface atomic_iface;
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if (drmSetClientCap(drm->fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1)) {
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wlr_log(L_INFO, "DRM universal planes unsupported");
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wlr_log(L_ERROR, "DRM universal planes unsupported");
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return false;
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}
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if (drmSetClientCap(drm->fd, DRM_CLIENT_CAP_ATOMIC, 1)) {
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wlr_log(L_INFO, "Atomic modesetting unsupported");
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wlr_log(L_DEBUG, "Atomic modesetting unsupported, using legacy DRM interface");
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drm->iface = &legacy_iface;
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} else {
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wlr_log(L_DEBUG, "Using atomic DRM interface");
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drm->iface = &atomic_iface;
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}
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return true;
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}
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static int cmp_plane(const void *arg1, const void *arg2)
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{
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static int cmp_plane(const void *arg1, const void *arg2) {
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const struct wlr_drm_plane *a = arg1;
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const struct wlr_drm_plane *b = arg2;
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return (int)a->type - (int)b->type;
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}
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static bool init_planes(struct wlr_backend_state *drm)
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{
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static bool init_planes(struct wlr_backend_state *drm) {
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drmModePlaneRes *plane_res = drmModeGetPlaneResources(drm->fd);
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if (!plane_res) {
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wlr_log_errno(L_ERROR, "Failed to get DRM plane resources");
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@ -150,6 +155,15 @@ void wlr_drm_resources_free(struct wlr_backend_state *drm) {
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return;
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}
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
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struct wlr_drm_crtc *crtc = &drm->crtcs[i];
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drmModeAtomicFree(crtc->atomic);
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if (crtc->mode_id) {
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drmModeDestroyPropertyBlob(drm->fd, crtc->mode_id);
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}
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}
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free(drm->crtcs);
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free(drm->planes);
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}
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@ -180,7 +194,7 @@ void wlr_drm_renderer_free(struct wlr_drm_renderer *renderer) {
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}
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static bool wlr_drm_plane_renderer_init(struct wlr_drm_renderer *renderer,
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struct wlr_drm_plane *plane, uint32_t width, uint32_t height, uint32_t flags) {
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struct wlr_drm_plane *plane, uint32_t width, uint32_t height, uint32_t format, uint32_t flags) {
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if (plane->width == width && plane->height == height) {
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return true;
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}
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@ -189,7 +203,7 @@ static bool wlr_drm_plane_renderer_init(struct wlr_drm_renderer *renderer,
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plane->height = height;
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plane->gbm = gbm_surface_create(renderer->gbm, width, height,
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GBM_FORMAT_ARGB8888, GBM_BO_USE_RENDERING | flags);
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format, GBM_BO_USE_RENDERING | flags);
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if (!plane->gbm) {
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wlr_log_errno(L_ERROR, "Failed to create GBM surface for plane");
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return false;
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@ -210,6 +224,8 @@ static void wlr_drm_plane_renderer_free(struct wlr_drm_renderer *renderer,
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return;
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}
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eglMakeCurrent(renderer->egl.display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
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if (plane->front) {
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gbm_surface_release_buffer(plane->gbm, plane->front);
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}
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@ -245,30 +261,6 @@ static void wlr_drm_plane_renderer_free(struct wlr_drm_renderer *renderer,
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plane->cursor_bo = NULL;
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}
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static void free_fb(struct gbm_bo *bo, void *data) {
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uint32_t id = (uintptr_t)data;
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if (id) {
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struct gbm_device *gbm = gbm_bo_get_device(bo);
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drmModeRmFB(gbm_device_get_fd(gbm), id);
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}
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}
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static uint32_t get_fb_for_bo(struct gbm_bo *bo) {
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uint32_t id = (uintptr_t)gbm_bo_get_user_data(bo);
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if (id) {
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return id;
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}
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struct gbm_device *gbm = gbm_bo_get_device(bo);
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drmModeAddFB(gbm_device_get_fd(gbm), gbm_bo_get_width(bo), gbm_bo_get_height(bo),
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24, 32, gbm_bo_get_stride(bo), gbm_bo_get_handle(bo).u32, &id);
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gbm_bo_set_user_data(bo, (void *)(uintptr_t)id, free_fb);
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return id;
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}
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static void wlr_drm_plane_make_current(struct wlr_drm_renderer *renderer,
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struct wlr_drm_plane *plane) {
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eglMakeCurrent(renderer->egl.display, plane->egl, plane->egl,
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@ -292,14 +284,14 @@ static void wlr_drm_output_make_current(struct wlr_output_state *output) {
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}
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static void wlr_drm_output_swap_buffers(struct wlr_output_state *output) {
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struct wlr_backend_state *drm = wl_container_of(output->renderer, drm, renderer);
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struct wlr_drm_renderer *renderer = output->renderer;
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struct wlr_drm_crtc *crtc = output->crtc;
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struct wlr_drm_plane *plane = crtc->primary;
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wlr_drm_plane_swap_buffers(renderer, plane);
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uint32_t fb_id = get_fb_for_bo(plane->back);
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drmModePageFlip(renderer->fd, crtc->id, fb_id, DRM_MODE_PAGE_FLIP_EVENT, output);
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drm->iface->crtc_pageflip(drm, output, crtc, get_fb_for_bo(plane->back), NULL);
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output->pageflip_pending = true;
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}
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@ -308,8 +300,8 @@ void wlr_drm_output_start_renderer(struct wlr_output_state *output) {
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return;
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}
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struct wlr_backend_state *drm = wl_container_of(output->renderer, drm, renderer);
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struct wlr_drm_renderer *renderer = output->renderer;
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struct wlr_output_mode *mode = output->base->current_mode;
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struct wlr_drm_crtc *crtc = output->crtc;
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struct wlr_drm_plane *plane = crtc->primary;
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@ -325,28 +317,22 @@ void wlr_drm_output_start_renderer(struct wlr_output_state *output) {
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bo = plane->back;
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}
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uint32_t fb_id = get_fb_for_bo(bo);
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drmModeSetCrtc(renderer->fd, crtc->id, fb_id, 0, 0,
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&output->connector, 1, &mode->state->mode);
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drmModePageFlip(renderer->fd, crtc->id, fb_id, DRM_MODE_PAGE_FLIP_EVENT, output);
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drmModeModeInfo *mode = &output->base->current_mode->state->mode;
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drm->iface->crtc_pageflip(drm, output, crtc, get_fb_for_bo(bo), mode);
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output->pageflip_pending = true;
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}
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static void wlr_drm_output_enable(struct wlr_output_state *output, bool enable) {
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struct wlr_backend_state *state =
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wl_container_of(output->renderer, state, renderer);
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struct wlr_backend_state *drm =
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wl_container_of(output->renderer, drm, renderer);
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if (output->state != WLR_DRM_OUTPUT_CONNECTED) {
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return;
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}
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if (enable) {
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drmModeConnectorSetProperty(state->fd, output->connector, output->props.dpms,
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DRM_MODE_DPMS_ON);
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drm->iface->conn_enable(drm, output, enable);
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if (enable) {
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wlr_drm_output_start_renderer(output);
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} else {
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drmModeConnectorSetProperty(state->fd, output->connector, output->props.dpms,
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DRM_MODE_DPMS_OFF);
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}
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}
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@ -515,7 +501,8 @@ static bool wlr_drm_output_set_mode(struct wlr_output_state *output,
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}
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if (!wlr_drm_plane_renderer_init(&drm->renderer, crtc->primary,
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mode->width, mode->height, GBM_BO_USE_SCANOUT)) {
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mode->width, mode->height, GBM_FORMAT_XRGB8888,
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GBM_BO_USE_SCANOUT)) {
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wlr_log(L_ERROR, "Failed to initalise renderer for plane");
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goto error_enc;
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}
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@ -541,22 +528,6 @@ static void wlr_drm_output_transform(struct wlr_output_state *output,
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output->base->transform = transform;
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}
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bool wlr_drm_crtc_set_cursor(struct wlr_backend_state *drm, struct wlr_drm_crtc *crtc) {
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if (!crtc || !crtc->cursor || !crtc->cursor->gbm) {
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return true;
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}
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struct wlr_drm_plane *plane = crtc->cursor;
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uint32_t bo_handle = gbm_bo_get_handle(plane->cursor_bo).u32;
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if (drmModeSetCursor(drm->fd, crtc->id, bo_handle, plane->width, plane->height)) {
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wlr_log_errno(L_ERROR, "Failed to set hardware cursor");
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return false;
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}
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return true;
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}
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static bool wlr_drm_output_set_cursor(struct wlr_output_state *output,
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const uint8_t *buf, int32_t stride, uint32_t width, uint32_t height) {
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struct wlr_backend_state *drm = wl_container_of(output->renderer, drm, renderer);
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@ -565,10 +536,10 @@ static bool wlr_drm_output_set_cursor(struct wlr_output_state *output,
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struct wlr_drm_plane *plane = crtc->cursor;
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if (!buf) {
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drmModeSetCursor(drm->fd, crtc->id, 0, 0, 0);
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return true;
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return drm->iface->crtc_set_cursor(drm, crtc, NULL);
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}
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// We don't have a real cursor plane, so we make a fake one
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if (!plane) {
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plane = calloc(1, sizeof(*plane));
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if (!plane) {
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@ -591,7 +562,7 @@ static bool wlr_drm_output_set_cursor(struct wlr_output_state *output,
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return false;
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}
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if (!wlr_drm_plane_renderer_init(renderer, plane, w, h, 0)) {
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if (!wlr_drm_plane_renderer_init(renderer, plane, w, h, GBM_FORMAT_ARGB8888, 0)) {
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wlr_log(L_ERROR, "Cannot allocate cursor resources");
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return false;
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}
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@ -653,14 +624,14 @@ static bool wlr_drm_output_set_cursor(struct wlr_output_state *output,
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gbm_bo_unmap(bo, bo_data);
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return wlr_drm_crtc_set_cursor(drm, crtc);
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return drm->iface->crtc_set_cursor(drm, crtc, bo);
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}
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static bool wlr_drm_output_move_cursor(struct wlr_output_state *output,
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int x, int y) {
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struct wlr_backend_state *drm =
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wl_container_of(output->renderer, drm, renderer);
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return !drmModeMoveCursor(drm->fd, output->crtc->id, x, y);
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return drm->iface->crtc_move_cursor(drm, output->crtc, x, y);
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}
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static void wlr_drm_output_destroy(struct wlr_output_state *output) {
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