diff options
Diffstat (limited to 'backend/drm/renderer.c')
| -rw-r--r-- | backend/drm/renderer.c | 241 |
1 files changed, 120 insertions, 121 deletions
diff --git a/backend/drm/renderer.c b/backend/drm/renderer.c index 27ad70c8..b4dddd2a 100644 --- a/backend/drm/renderer.c +++ b/backend/drm/renderer.c @@ -22,7 +22,8 @@ bool init_drm_renderer(struct wlr_drm_backend *drm, struct wlr_drm_renderer *renderer, wlr_renderer_create_func_t create_renderer_func) { - // TODO: get rid of renderer->gbm + renderer->backend = drm; + renderer->gbm = gbm_create_device(drm->fd); if (!renderer->gbm) { wlr_log(WLR_ERROR, "Failed to create GBM device"); @@ -53,7 +54,6 @@ bool init_drm_renderer(struct wlr_drm_backend *drm, goto error_wlr_rend; } - renderer->fd = drm->fd; return true; error_wlr_rend: @@ -142,6 +142,44 @@ void drm_surface_unset_current(struct wlr_drm_surface *surf) { surf->back_buffer = NULL; } +static struct wlr_buffer *drm_surface_blit(struct wlr_drm_surface *surf, + struct wlr_buffer *buffer) { + struct wlr_renderer *renderer = surf->renderer->wlr_rend; + + struct wlr_dmabuf_attributes attribs = {0}; + if (!wlr_buffer_get_dmabuf(buffer, &attribs)) { + return NULL; + } + + struct wlr_texture *tex = wlr_texture_from_dmabuf(renderer, &attribs); + if (tex == NULL) { + return NULL; + } + + if (!drm_surface_make_current(surf, NULL)) { + wlr_texture_destroy(tex); + return NULL; + } + + float mat[9]; + wlr_matrix_projection(mat, 1, 1, WL_OUTPUT_TRANSFORM_NORMAL); + + wlr_renderer_begin(renderer, surf->width, surf->height); + wlr_renderer_clear(renderer, (float[]){ 0.0, 0.0, 0.0, 0.0 }); + wlr_render_texture_with_matrix(renderer, tex, mat, 1.0f); + wlr_renderer_end(renderer); + + assert(surf->back_buffer != NULL); + struct wlr_buffer *out = wlr_buffer_lock(surf->back_buffer); + + drm_surface_unset_current(surf); + + wlr_texture_destroy(tex); + + return out; +} + + void drm_plane_finish_surface(struct wlr_drm_plane *plane) { if (!plane) { return; @@ -250,30 +288,19 @@ void drm_fb_clear(struct wlr_drm_fb *fb) { } struct gbm_device *gbm = gbm_bo_get_device(fb->bo); - if (fb->mgpu_bo) { - gbm = gbm_bo_get_device(fb->mgpu_bo); - } if (drmModeRmFB(gbm_device_get_fd(gbm), fb->id) != 0) { wlr_log(WLR_ERROR, "drmModeRmFB failed"); } gbm_bo_destroy(fb->bo); wlr_buffer_unlock(fb->wlr_buf); + wlr_buffer_unlock(fb->mgpu_wlr_buf); - fb->wlr_buf = NULL; - fb->bo = NULL; - - if (fb->mgpu_bo) { - assert(fb->mgpu_surf); - gbm_bo_destroy(fb->mgpu_bo); - wlr_buffer_unlock(fb->mgpu_wlr_buf); - fb->mgpu_bo = NULL; - fb->mgpu_wlr_buf = NULL; - fb->mgpu_surf = NULL; - } + memset(fb, 0, sizeof(*fb)); } -bool drm_fb_lock_surface(struct wlr_drm_fb *fb, struct wlr_drm_surface *surf) { +bool drm_fb_lock_surface(struct wlr_drm_fb *fb, struct wlr_drm_backend *drm, + struct wlr_drm_surface *surf, struct wlr_drm_surface *mgpu) { assert(surf->back_buffer != NULL); struct wlr_buffer *buffer = wlr_buffer_lock(surf->back_buffer); @@ -282,18 +309,70 @@ bool drm_fb_lock_surface(struct wlr_drm_fb *fb, struct wlr_drm_surface *surf) { // making another context current. drm_surface_unset_current(surf); - bool ok = drm_fb_import_wlr(fb, surf->renderer, buffer, NULL); + bool ok = drm_fb_import(fb, drm, buffer, mgpu, NULL); wlr_buffer_unlock(buffer); return ok; } -bool drm_fb_import_wlr(struct wlr_drm_fb *fb, struct wlr_drm_renderer *renderer, - struct wlr_buffer *buf, struct wlr_drm_format_set *set) { +static struct gbm_bo *get_bo_for_dmabuf(struct gbm_device *gbm, + struct wlr_dmabuf_attributes *attribs) { + if (attribs->modifier != DRM_FORMAT_MOD_INVALID || + attribs->n_planes > 1 || attribs->offset[0] != 0) { + struct gbm_import_fd_modifier_data data = { + .width = attribs->width, + .height = attribs->height, + .format = attribs->format, + .num_fds = attribs->n_planes, + .modifier = attribs->modifier, + }; + + if ((size_t)attribs->n_planes > sizeof(data.fds) / sizeof(data.fds[0])) { + return false; + } + + for (size_t i = 0; i < (size_t)attribs->n_planes; ++i) { + data.fds[i] = attribs->fd[i]; + data.strides[i] = attribs->stride[i]; + data.offsets[i] = attribs->offset[i]; + } + + return gbm_bo_import(gbm, GBM_BO_IMPORT_FD_MODIFIER, + &data, GBM_BO_USE_SCANOUT); + } else { + struct gbm_import_fd_data data = { + .fd = attribs->fd[0], + .width = attribs->width, + .height = attribs->height, + .stride = attribs->stride[0], + .format = attribs->format, + }; + + return gbm_bo_import(gbm, GBM_BO_IMPORT_FD, &data, GBM_BO_USE_SCANOUT); + } +} + +bool drm_fb_import(struct wlr_drm_fb *fb, struct wlr_drm_backend *drm, + struct wlr_buffer *buf, struct wlr_drm_surface *mgpu, + struct wlr_drm_format_set *set) { drm_fb_clear(fb); + fb->wlr_buf = wlr_buffer_lock(buf); + + if (drm->parent && mgpu) { + // Perform a copy across GPUs + fb->mgpu_wlr_buf = drm_surface_blit(mgpu, buf); + if (!fb->mgpu_wlr_buf) { + wlr_log(WLR_ERROR, "Failed to blit buffer across GPUs"); + goto error_mgpu_wlr_buf; + } + + buf = fb->mgpu_wlr_buf; + } + struct wlr_dmabuf_attributes attribs; if (!wlr_buffer_get_dmabuf(buf, &attribs)) { - return false; + wlr_log(WLR_ERROR, "Failed to get DMA-BUF from buffer"); + goto error_get_dmabuf; } if (set && !wlr_drm_format_set_has(set, attribs.format, attribs.modifier)) { @@ -303,52 +382,34 @@ bool drm_fb_import_wlr(struct wlr_drm_fb *fb, struct wlr_drm_renderer *renderer, if (wlr_drm_format_set_has(set, format, attribs.modifier)) { attribs.format = format; } else { - return false; + wlr_log(WLR_ERROR, "Buffer format 0x%"PRIX32" cannot be scanned out", + attribs.format); + goto error_get_dmabuf; } } - if (attribs.modifier != DRM_FORMAT_MOD_INVALID || - attribs.n_planes > 1 || attribs.offset[0] != 0) { - struct gbm_import_fd_modifier_data data = { - .width = attribs.width, - .height = attribs.height, - .format = attribs.format, - .num_fds = attribs.n_planes, - .modifier = attribs.modifier, - }; - - if ((size_t)attribs.n_planes > sizeof(data.fds) / sizeof(data.fds[0])) { - return false; - } - - for (size_t i = 0; i < (size_t)attribs.n_planes; ++i) { - data.fds[i] = attribs.fd[i]; - data.strides[i] = attribs.stride[i]; - data.offsets[i] = attribs.offset[i]; - } - - fb->bo = gbm_bo_import(renderer->gbm, GBM_BO_IMPORT_FD_MODIFIER, - &data, GBM_BO_USE_SCANOUT); - } else { - struct gbm_import_fd_data data = { - .fd = attribs.fd[0], - .width = attribs.width, - .height = attribs.height, - .stride = attribs.stride[0], - .format = attribs.format, - }; - - fb->bo = gbm_bo_import(renderer->gbm, GBM_BO_IMPORT_FD, - &data, GBM_BO_USE_SCANOUT); - } - + fb->bo = get_bo_for_dmabuf(drm->renderer.gbm, &attribs); if (!fb->bo) { - return false; + wlr_log(WLR_ERROR, "Failed to import DMA-BUF in GBM"); + goto error_get_dmabuf; } - fb->wlr_buf = wlr_buffer_lock(buf); + fb->id = get_fb_for_bo(fb->bo, drm->addfb2_modifiers); + if (!fb->id) { + wlr_log(WLR_ERROR, "Failed to import GBM BO in KMS"); + goto error_get_fb_for_bo; + } return true; + +error_get_fb_for_bo: + gbm_bo_destroy(fb->bo); +error_get_dmabuf: + wlr_buffer_unlock(fb->mgpu_wlr_buf); +error_mgpu_wlr_buf: + wlr_buffer_unlock(fb->wlr_buf); + memset(fb, 0, sizeof(*fb)); + return false; } void drm_fb_move(struct wlr_drm_fb *new, struct wlr_drm_fb *old) { @@ -370,65 +431,3 @@ bool drm_surface_render_black_frame(struct wlr_drm_surface *surf) { return true; } - -uint32_t drm_fb_acquire(struct wlr_drm_fb *fb, struct wlr_drm_backend *drm, - struct wlr_drm_surface *mgpu) { - if (fb->id) { - return fb->id; - } - - if (!fb->bo) { - wlr_log(WLR_ERROR, "Tried to acquire an FB with a NULL BO"); - return 0; - } - - if (!drm->parent) { - fb->id = get_fb_for_bo(fb->bo, drm->addfb2_modifiers); - return fb->id; - } - - /* Perform copy across GPUs */ - - struct wlr_renderer *renderer = mgpu->renderer->wlr_rend; - - struct wlr_dmabuf_attributes attribs = {0}; - if (!wlr_buffer_get_dmabuf(fb->wlr_buf, &attribs)) { - return 0; - } - - struct wlr_texture *tex = wlr_texture_from_dmabuf(renderer, &attribs); - if (tex == NULL) { - return 0; - } - - if (!drm_surface_make_current(mgpu, NULL)) { - wlr_texture_destroy(tex); - return 0; - } - - float mat[9]; - wlr_matrix_projection(mat, 1, 1, WL_OUTPUT_TRANSFORM_NORMAL); - - wlr_renderer_begin(renderer, mgpu->width, mgpu->height); - wlr_renderer_clear(renderer, (float[]){ 0.0, 0.0, 0.0, 0.0 }); - wlr_render_texture_with_matrix(renderer, tex, mat, 1.0f); - wlr_renderer_end(renderer); - - struct wlr_drm_fb mgpu_fb = { - .bo = fb->mgpu_bo, - .wlr_buf = fb->mgpu_wlr_buf, - }; - if (!drm_fb_lock_surface(&mgpu_fb, mgpu)) { - wlr_texture_destroy(tex); - return 0; - } - - wlr_texture_destroy(tex); - - fb->mgpu_bo = mgpu_fb.bo; - fb->mgpu_wlr_buf = mgpu_fb.wlr_buf; - fb->mgpu_surf = mgpu; - - fb->id = get_fb_for_bo(fb->mgpu_bo, drm->addfb2_modifiers); - return fb->id; -} |