From 96d5f6823314a2a1a2355d5a72dd2c95c5311ca8 Mon Sep 17 00:00:00 2001 From: Jeffy Chen Date: Wed, 6 Jan 2021 04:11:48 +0800 Subject: [PATCH 42/95] backend-drm: Support modifier Tested on rk356x with ARM AFBC modifier. Signed-off-by: Jeffy Chen --- libweston/backend-drm/drm-internal.h | 1 + libweston/backend-drm/drm.c | 100 +++++++++++++++++++++------ libweston/backend-drm/kms.c | 3 +- libweston/pixel-formats.c | 1 + 4 files changed, 84 insertions(+), 21 deletions(-) diff --git a/libweston/backend-drm/drm-internal.h b/libweston/backend-drm/drm-internal.h index e175f16..12ee031 100644 --- a/libweston/backend-drm/drm-internal.h +++ b/libweston/backend-drm/drm-internal.h @@ -534,6 +534,7 @@ struct drm_plane { struct weston_drm_format_array formats; bool can_scale; + bool has_modifiers; }; struct drm_connector { diff --git a/libweston/backend-drm/drm.c b/libweston/backend-drm/drm.c index 756ee00..97e3382 100644 --- a/libweston/backend-drm/drm.c +++ b/libweston/backend-drm/drm.c @@ -1265,6 +1265,42 @@ err: return NULL; } +static inline bool +drm_plane_has_modifier(struct drm_plane *plane, uint32_t format) +{ + struct weston_drm_format *fmt; + const uint64_t *modifiers; + unsigned int num_modifiers, i; + + fmt = weston_drm_format_array_find_format(&plane->formats, format); + if (!fmt) + return false; + + modifiers = weston_drm_format_get_modifiers(fmt, &num_modifiers); + for (i = 0; i < num_modifiers; i++) { + if (DRM_MOD_VALID(modifiers[i])) + return true; + } + + return false; +} + +static inline bool +drm_planes_have_modifier(struct drm_device *device) +{ + struct drm_plane *plane; + + if (!device->fb_modifiers) + return false; + + wl_list_for_each_reverse(plane, &device->plane_list, link) { + if (plane->has_modifiers) + return true; + } + + return false; +} + /** * Find, or create, a special-purpose plane * @@ -1279,7 +1315,10 @@ drm_output_find_special_plane(struct drm_device *device, { struct drm_backend *b = device->backend; struct drm_plane *plane; + bool prefer_modifier = + device->fb_modifiers && type == WDRM_PLANE_TYPE_PRIMARY; +retry: wl_list_for_each(plane, &device->plane_list, link) { struct weston_output *base; bool found_elsewhere = false; @@ -1311,10 +1350,22 @@ drm_output_find_special_plane(struct drm_device *device, if (found_elsewhere) continue; + if (prefer_modifier && + !drm_plane_has_modifier(plane, output->gbm_format)) + continue; + + if (plane->type != type) + continue; + plane->possible_crtcs = (1 << output->crtc->pipe); return plane; } + if (prefer_modifier) { + prefer_modifier = false; + goto retry; + } + return NULL; } @@ -4271,9 +4322,6 @@ drm_backend_create(struct weston_compositor *compositor, compositor->backend = &b->base; - if (parse_gbm_format(config->gbm_format, DRM_FORMAT_XRGB8888, &b->gbm_format) < 0) - goto err_compositor; - /* Check if we run drm-backend using a compatible launcher */ compositor->launcher = weston_launcher_connect(compositor, seat_id, true); if (compositor->launcher == NULL) { @@ -4306,15 +4354,42 @@ drm_backend_create(struct weston_compositor *compositor, goto err_udev_dev; } + res = drmModeGetResources(b->drm->drm.fd); + if (!res) { + weston_log("Failed to get drmModeRes\n"); + goto err_udev_dev; + } + + wl_list_init(&b->drm->crtc_list); + if (drm_backend_create_crtc_list(b->drm, res) == -1) { + weston_log("Failed to create CRTC list for DRM-backend\n"); + goto err_create_crtc_list; + } + + wl_list_init(&device->plane_list); + create_sprites(b->drm, res); + + if (!drm_planes_have_modifier(b->drm)) + device->fb_modifiers = false; + + b->gbm_format = DRM_FORMAT_XRGB8888; + + /* HACK: The modifiers only work with xbgr8888 now */ + if (device->fb_modifiers) + b->gbm_format = DRM_FORMAT_XBGR8888; + + if (parse_gbm_format(config->gbm_format, b->gbm_format, &b->gbm_format) < 0) + goto err_sprite; + if (b->use_pixman) { if (init_pixman(b) < 0) { weston_log("failed to initialize pixman renderer\n"); - goto err_udev_dev; + goto err_sprite; } } else { if (init_egl(b) < 0) { weston_log("failed to initialize egl\n"); - goto err_udev_dev; + goto err_sprite; } } @@ -4328,21 +4403,6 @@ drm_backend_create(struct weston_compositor *compositor, weston_setup_vt_switch_bindings(compositor); - res = drmModeGetResources(b->drm->drm.fd); - if (!res) { - weston_log("Failed to get drmModeRes\n"); - goto err_udev_dev; - } - - wl_list_init(&b->drm->crtc_list); - if (drm_backend_create_crtc_list(b->drm, res) == -1) { - weston_log("Failed to create CRTC list for DRM-backend\n"); - goto err_create_crtc_list; - } - - wl_list_init(&device->plane_list); - create_sprites(b->drm, res); - if (udev_input_init(&b->input, compositor, b->udev, seat_id, config->configure_device) < 0) { diff --git a/libweston/backend-drm/kms.c b/libweston/backend-drm/kms.c index 3d97df2..52f0c68 100644 --- a/libweston/backend-drm/kms.c +++ b/libweston/backend-drm/kms.c @@ -38,6 +38,7 @@ #include #include +#include #include "shared/helpers.h" #include "shared/weston-drm-fourcc.h" #include "drm-internal.h" @@ -1618,7 +1619,7 @@ init_kms_caps(struct drm_device *device) weston_log("DRM: %s atomic modesetting\n", device->atomic_modeset ? "supports" : "does not support"); - if (!getenv("WESTON_DISABLE_GBM_MODIFIERS")) { + if (getenv("WESTON_ALLOW_GBM_MODIFIERS")) { ret = drmGetCap(device->drm.fd, DRM_CAP_ADDFB2_MODIFIERS, &cap); if (ret == 0) device->fb_modifiers = cap; diff --git a/libweston/pixel-formats.c b/libweston/pixel-formats.c index 10b3ed9..a7ae8c0 100644 --- a/libweston/pixel-formats.c +++ b/libweston/pixel-formats.c @@ -261,6 +261,7 @@ static const struct pixel_format_info pixel_format_table[] = { { DRM_FORMAT(XBGR8888), BITS_RGBA_FIXED(8, 8, 8, 0), + .addfb_legacy_depth = 24, .bpp = 32, GL_FORMAT(GL_RGBA), GL_TYPE(GL_UNSIGNED_BYTE), -- 2.20.1