2016-03-10 2:49 GMT+02:00 Bryce Harrington <br...@osg.samsung.com>:
> From: Giulio Camuffo <giuliocamu...@gmail.com>
>
> Signed-off-by: Bryce Harrington <br...@osg.samsung.com>
> Reviewed-by: Quentin Glidic <sardemff7+...@sardemff7.net>
> Acked-by: Pekka Paalanen <pekka.paala...@collabora.co.uk>
> ---
> v4: Update to current trunk
> - Add missing param doc for mode in drm_output_choose_initial_mode
> - Rebase to account for code changes by 91880f1e to make vt
> switching configurable.
>
> Makefile.am | 3 +
> src/compositor-drm.c | 196
> ++++++++++++++++++---------------------------------
> src/compositor.h | 2 -
> src/main.c | 94 +++++++++++++++++++++++-
> 4 files changed, 165 insertions(+), 130 deletions(-)
Hi, thanks for keeping this going. I'll try to review it (for what is
worth, since the code should be mine :P), but note that the
compositor-drm.h file is missing.
--
Giulio
>
> diff --git a/Makefile.am b/Makefile.am
> index fe08d94..9330f0e 100644
> --- a/Makefile.am
> +++ b/Makefile.am
> @@ -72,6 +72,7 @@ weston_SOURCES = \
> src/log.c \
> src/compositor.c \
> src/compositor.h \
> + src/compositor-drm.h \
> src/input.c \
> src/data-device.c \
> src/screenshooter.c \
> @@ -207,6 +208,7 @@ westonincludedir = $(includedir)/weston
> westoninclude_HEADERS = \
> src/version.h \
> src/compositor.h \
> + src/compositor-drm.h \
> src/timeline-object.h \
> shared/matrix.h \
> shared/config-parser.h \
> @@ -276,6 +278,7 @@ drm_backend_la_CFLAGS = \
> $(AM_CFLAGS)
> drm_backend_la_SOURCES = \
> src/compositor-drm.c \
> + src/compositor-drm.h \
> $(INPUT_BACKEND_SOURCES) \
> shared/helpers.h \
> shared/timespec-util.h \
> diff --git a/src/compositor-drm.c b/src/compositor-drm.c
> index e01f6b9..111c882 100644
> --- a/src/compositor-drm.c
> +++ b/src/compositor-drm.c
> @@ -50,6 +50,7 @@
> #include "shared/timespec-util.h"
> #include "libbacklight.h"
> #include "compositor.h"
> +#include "compositor-drm.h"
> #include "gl-renderer.h"
> #include "pixman-renderer.h"
> #include "libinput-seat.h"
> @@ -74,17 +75,6 @@
> #define GBM_BO_USE_CURSOR GBM_BO_USE_CURSOR_64X64
> #endif
>
> -static int option_current_mode = 0;
> -
> -enum output_config {
> - OUTPUT_CONFIG_INVALID = 0,
> - OUTPUT_CONFIG_OFF,
> - OUTPUT_CONFIG_PREFERRED,
> - OUTPUT_CONFIG_CURRENT,
> - OUTPUT_CONFIG_MODE,
> - OUTPUT_CONFIG_MODELINE
> -};
> -
> struct drm_backend {
> struct weston_backend base;
> struct weston_compositor *compositor;
> @@ -130,6 +120,8 @@ struct drm_backend {
>
> int32_t cursor_width;
> int32_t cursor_height;
> +
> + struct weston_drm_backend_config *config;
> };
>
> struct drm_mode {
> @@ -220,13 +212,6 @@ struct drm_sprite {
> uint32_t formats[];
> };
>
> -struct drm_parameters {
> - int connector;
> - int tty;
> - int use_pixman;
> - const char *seat_id;
> -};
> -
> static struct gl_renderer_interface *gl_renderer;
>
> static const char default_seat[] = "seat0";
> @@ -2151,16 +2136,10 @@ setup_output_seat_constraint(struct drm_backend *b,
> }
>
> static int
> -get_gbm_format_from_section(struct weston_config_section *section,
> - uint32_t default_value,
> - uint32_t *format)
> +parse_gbm_format(const char *s, uint32_t default_value, uint32_t *format)
> {
> - char *s;
> int ret = 0;
>
> - weston_config_section_get_string(section,
> - "gbm-format", &s, NULL);
> -
> if (s == NULL)
> *format = default_value;
> else if (strcmp(s, "xrgb8888") == 0)
> @@ -2174,8 +2153,6 @@ get_gbm_format_from_section(struct
> weston_config_section *section,
> ret = -1;
> }
>
> - free(s);
> -
> return ret;
> }
>
> @@ -2185,30 +2162,45 @@ get_gbm_format_from_section(struct
> weston_config_section *section,
> * Find the most suitable mode to use for initial setup (or reconfiguration
> on
> * hotplug etc) for a DRM output.
> *
> + * @param backend The DRM backend object
> * @param output DRM output to choose mode for
> - * @param kind Strategy and preference to use when choosing mode
> - * @param width Desired width for this output
> - * @param height Desired height for this output
> + * @param mode Controls how to select the mode
> + * @param config Desired configuration for the output
> * @param current_mode Mode currently being displayed on this output
> - * @param modeline Manually-entered mode (may be NULL)
> * @returns A mode from the output's mode list, or NULL if none available
> */
> static struct drm_mode *
> -drm_output_choose_initial_mode(struct drm_output *output,
> - enum output_config kind,
> - int width, int height,
> - const drmModeModeInfo *current_mode,
> - const drmModeModeInfo *modeline)
> +drm_output_choose_initial_mode(struct drm_backend *backend,
> + struct drm_output *output,
> + enum weston_drm_backend_output_mode mode,
> + struct weston_drm_backend_output_config
> *config,
> + const drmModeModeInfo *current_mode)
> {
> struct drm_mode *preferred = NULL;
> struct drm_mode *current = NULL;
> struct drm_mode *configured = NULL;
> struct drm_mode *best = NULL;
> struct drm_mode *drm_mode;
> + drmModeModeInfo modeline;
> + int32_t width, height;
> +
> + if (mode == WESTON_DRM_BACKEND_OUTPUT_PREFERRED && config->modeline) {
> + if (sscanf(config->modeline, "%dx%d", &width, &height) != 2) {
> + width = -1;
> +
> + if (parse_modeline(config->modeline, &modeline) == 0)
> {
> + configured = drm_output_add_mode(output,
> &modeline);
> + if (!configured)
> + return NULL;
> + } else {
> + weston_log("Invalid modeline \"%s\" for
> output %s\n",
> + config->modeline,
> output->base.name);
> + }
> + }
> + }
>
> wl_list_for_each_reverse(drm_mode, &output->base.mode_list,
> base.link) {
> - if (kind == OUTPUT_CONFIG_MODE &&
> - width == drm_mode->base.width &&
> + if (width == drm_mode->base.width &&
> height == drm_mode->base.height)
> configured = drm_mode;
>
> @@ -2222,24 +2214,15 @@ drm_output_choose_initial_mode(struct drm_output
> *output,
> best = drm_mode;
> }
>
> - if (kind == OUTPUT_CONFIG_MODELINE) {
> - configured = drm_output_add_mode(output, modeline);
> - if (!configured)
> - return NULL;
> - }
> -
> if (current == NULL && current_mode->clock != 0) {
> current = drm_output_add_mode(output, current_mode);
> if (!current)
> return NULL;
> }
>
> - if (kind == OUTPUT_CONFIG_CURRENT)
> + if (mode == WESTON_DRM_BACKEND_OUTPUT_CURRENT)
> configured = current;
>
> - if (option_current_mode && current)
> - return current;
> -
> if (configured)
> return configured;
>
> @@ -2303,12 +2286,10 @@ create_output_for_connector(struct drm_backend *b,
> struct drm_output *output;
> struct drm_mode *drm_mode, *next, *current;
> struct weston_mode *m;
> - struct weston_config_section *section;
> - drmModeModeInfo crtc_mode, modeline;
> - int i, width, height, scale;
> - char *s;
> - enum output_config config;
> - uint32_t transform;
> + drmModeModeInfo crtc_mode;
> + int i;
> + enum weston_drm_backend_output_mode mode;
> + struct weston_drm_backend_output_config config = { 0 };
>
> i = find_crtc_for_connector(b, resources, connector);
> if (i < 0) {
> @@ -2327,42 +2308,14 @@ create_output_for_connector(struct drm_backend *b,
> output->base.serial_number = "unknown";
> wl_list_init(&output->base.mode_list);
>
> - section = weston_config_get_section(b->compositor->config, "output",
> "name",
> - output->base.name);
> - weston_config_section_get_string(section, "mode", &s, "preferred");
> - if (strcmp(s, "off") == 0)
> - config = OUTPUT_CONFIG_OFF;
> - else if (strcmp(s, "preferred") == 0)
> - config = OUTPUT_CONFIG_PREFERRED;
> - else if (strcmp(s, "current") == 0)
> - config = OUTPUT_CONFIG_CURRENT;
> - else if (sscanf(s, "%dx%d", &width, &height) == 2)
> - config = OUTPUT_CONFIG_MODE;
> - else if (parse_modeline(s, &modeline) == 0)
> - config = OUTPUT_CONFIG_MODELINE;
> - else {
> - weston_log("Invalid mode \"%s\" for output %s\n",
> - s, output->base.name);
> - config = OUTPUT_CONFIG_PREFERRED;
> - }
> - free(s);
> -
> - weston_config_section_get_int(section, "scale", &scale, 1);
> - weston_config_section_get_string(section, "transform", &s, "normal");
> - if (weston_parse_transform(s, &transform) < 0)
> - weston_log("Invalid transform \"%s\" for output %s\n",
> - s, output->base.name);
> -
> - free(s);
> -
> - if (get_gbm_format_from_section(section,
> - b->format,
> - &output->format) == -1)
> + mode = b->config->configure_output(b->compositor, b->config,
> + output->base.name, &config);
> + if (parse_gbm_format(config.format, b->format, &output->format) == -1)
> output->format = b->format;
>
> - weston_config_section_get_string(section, "seat", &s, "");
> - setup_output_seat_constraint(b, &output->base, s);
> - free(s);
> + setup_output_seat_constraint(b, &output->base,
> + config.seat ? config.seat : "");
> + free(config.seat);
>
> output->crtc_id = resources->crtcs[i];
> output->pipe = i;
> @@ -2382,16 +2335,15 @@ create_output_for_connector(struct drm_backend *b,
> goto err_free;
> }
>
> - if (config == OUTPUT_CONFIG_OFF) {
> + if (mode == WESTON_DRM_BACKEND_OUTPUT_OFF) {
> weston_log("Disabling output %s\n", output->base.name);
> drmModeSetCrtc(b->drm.fd, output->crtc_id,
> 0, 0, 0, 0, 0, NULL);
> goto err_free;
> }
>
> - current = drm_output_choose_initial_mode(output, config,
> - width, height,
> - &crtc_mode, &modeline);
> + current = drm_output_choose_initial_mode(b, output, mode, &config,
> + &crtc_mode);
> if (!current)
> goto err_free;
> output->base.current_mode = ¤t->base;
> @@ -2399,7 +2351,7 @@ create_output_for_connector(struct drm_backend *b,
>
> weston_output_init(&output->base, b->compositor, x, y,
> connector->mmWidth, connector->mmHeight,
> - transform, scale);
> + config.base.transform, config.base.scale);
>
> if (b->use_pixman) {
> if (drm_output_init_pixman(output, b) < 0) {
> @@ -2477,6 +2429,7 @@ err_free:
> b->crtc_allocator &= ~(1 << output->crtc_id);
> b->connector_allocator &= ~(1 << output->connector_id);
> free(output);
> + free(config.modeline);
>
> return -1;
> }
> @@ -2744,6 +2697,10 @@ drm_destroy(struct weston_compositor *ec)
>
> close(b->drm.fd);
>
> + free(b->config->format);
> + free(b->config->seat_id);
> + free(b->config);
> +
> free(b);
> }
>
> @@ -3067,15 +3024,13 @@ renderer_switch_binding(struct weston_keyboard
> *keyboard, uint32_t time,
>
> static struct drm_backend *
> drm_backend_create(struct weston_compositor *compositor,
> - struct drm_parameters *param,
> - int *argc, char *argv[],
> - struct weston_config *config)
> + struct weston_drm_backend_config *config)
> {
> struct drm_backend *b;
> - struct weston_config_section *section;
> struct udev_device *drm_device;
> struct wl_event_loop *loop;
> const char *path;
> + const char *seat_id = default_seat;
>
> weston_log("initializing drm backend\n");
>
> @@ -3095,18 +3050,17 @@ drm_backend_create(struct weston_compositor
> *compositor,
> */
> b->sprites_are_broken = 1;
> b->compositor = compositor;
> + b->use_pixman = config->use_pixman;
> + b->config = config;
>
> - section = weston_config_get_section(config, "core", NULL, NULL);
> - if (get_gbm_format_from_section(section,
> - GBM_FORMAT_XRGB8888,
> - &b->format) == -1)
> - goto err_base;
> -
> - b->use_pixman = param->use_pixman;
> + if (parse_gbm_format(config->format, GBM_FORMAT_XRGB8888, &b->format)
> < 0)
> + goto err_compositor;
>
> + if (config->seat_id)
> + seat_id = config->seat_id;
> /* Check if we run drm-backend using weston-launch */
> - compositor->launcher = weston_launcher_connect(compositor, param->tty,
> - param->seat_id, true);
> + compositor->launcher = weston_launcher_connect(compositor,
> config->tty,
> + seat_id, true);
> if (compositor->launcher == NULL) {
> weston_log("fatal: drm backend should be run "
> "using weston-launch binary or as root\n");
> @@ -3122,7 +3076,7 @@ drm_backend_create(struct weston_compositor *compositor,
> b->session_listener.notify = session_notify;
> wl_signal_add(&compositor->session_signal, &b->session_listener);
>
> - drm_device = find_primary_gpu(b, param->seat_id);
> + drm_device = find_primary_gpu(b, seat_id);
> if (drm_device == NULL) {
> weston_log("no drm device found\n");
> goto err_udev;
> @@ -3148,6 +3102,7 @@ drm_backend_create(struct weston_compositor *compositor,
>
> b->base.destroy = drm_destroy;
> b->base.restore = drm_restore;
> + b->base.create_output = NULL;
>
> b->prev_state = WESTON_COMPOSITOR_ACTIVE;
>
> @@ -3157,12 +3112,12 @@ drm_backend_create(struct weston_compositor
> *compositor,
> create_sprites(b);
>
> if (udev_input_init(&b->input,
> - compositor, b->udev, param->seat_id) < 0) {
> + compositor, b->udev, seat_id) < 0) {
> weston_log("failed to create input devices\n");
> goto err_sprite;
> }
>
> - if (create_outputs(b, param->connector, drm_device) < 0) {
> + if (create_outputs(b, config->connector, drm_device) < 0) {
> weston_log("failed to create output for %s\n", path);
> goto err_udev_input;
> }
> @@ -3237,32 +3192,21 @@ err_udev:
> udev_unref(b->udev);
> err_compositor:
> weston_compositor_shutdown(compositor);
> -err_base:
> +
> free(b);
> return NULL;
> }
>
> WL_EXPORT int
> backend_init(struct weston_compositor *compositor, int *argc, char *argv[],
> - struct weston_config *config,
> - struct weston_backend_config *config_base)
> + struct weston_config *wc,
> + struct weston_backend_config *config_base)
> {
> struct drm_backend *b;
> - struct drm_parameters param = { 0, };
> -
> - const struct weston_option drm_options[] = {
> - { WESTON_OPTION_INTEGER, "connector", 0, ¶m.connector },
> - { WESTON_OPTION_STRING, "seat", 0, ¶m.seat_id },
> - { WESTON_OPTION_INTEGER, "tty", 0, ¶m.tty },
> - { WESTON_OPTION_BOOLEAN, "current-mode", 0,
> &option_current_mode },
> - { WESTON_OPTION_BOOLEAN, "use-pixman", 0, ¶m.use_pixman },
> - };
> -
> - param.seat_id = default_seat;
> -
> - parse_options(drm_options, ARRAY_LENGTH(drm_options), argc, argv);
> + struct weston_drm_backend_config *config =
> + (struct weston_drm_backend_config
> *)config_base;
>
> - b = drm_backend_create(compositor, ¶m, argc, argv, config);
> + b = drm_backend_create(compositor, config);
> if (b == NULL)
> return -1;
> return 0;
> diff --git a/src/compositor.h b/src/compositor.h
> index 794a1b0..30462cf 100644
> --- a/src/compositor.h
> +++ b/src/compositor.h
> @@ -673,8 +673,6 @@ enum weston_capability {
> */
> struct weston_backend_output_config {
> uint32_t transform;
> - uint32_t width;
> - uint32_t height;
> uint32_t scale;
> };
>
> diff --git a/src/main.c b/src/main.c
> index 43de354..66c054e 100644
> --- a/src/main.c
> +++ b/src/main.c
> @@ -47,6 +47,8 @@
> #include "git-version.h"
> #include "version.h"
>
> +#include "compositor-drm.h"
> +
> static struct wl_list child_process_list;
> static struct weston_compositor *segv_compositor;
>
> @@ -670,13 +672,101 @@ load_backend_new(struct weston_compositor *compositor,
> const char *backend,
> return backend_init(compositor, NULL, NULL, NULL, config_base);
> }
>
> +struct drm_config {
> + struct weston_drm_backend_config base;
> + bool use_current_mode;
> +};
> +
> +static enum weston_drm_backend_output_mode
> +drm_configure_output(struct weston_compositor *c,
> + struct weston_drm_backend_config *backend_config,
> + const char *name,
> + struct weston_drm_backend_output_config *config)
> +{
> + struct drm_config *drm_config = (struct drm_config *)backend_config;
> + struct weston_config *wc = weston_compositor_get_user_data(c);
> + struct weston_config_section *section;
> + char *s;
> + int scale;
> + enum weston_drm_backend_output_mode mode =
> + WESTON_DRM_BACKEND_OUTPUT_PREFERRED;
> +
> + section = weston_config_get_section(wc, "output", "name", name);
> + weston_config_section_get_string(section, "mode", &s, "preferred");
> + if (strcmp(s, "off") == 0) {
> + free(s);
> + return WESTON_DRM_BACKEND_OUTPUT_OFF;
> + }
> +
> + if (drm_config->use_current_mode || strcmp(s, "current") == 0) {
> + mode = WESTON_DRM_BACKEND_OUTPUT_CURRENT;
> + } else if (strcmp(s, "preferred") != 0) {
> + config->modeline = s;
> + s = NULL;
> + }
> + free(s);
> +
> + weston_config_section_get_int(section, "scale", &scale, 1);
> + config->base.scale = scale >= 1 ? scale : 1;
> + weston_config_section_get_string(section, "transform", &s, "normal");
> + if (weston_parse_transform(s, &config->base.transform) < 0)
> + weston_log("Invalid transform \"%s\" for output %s\n",
> + s, name);
> + free(s);
> +
> + weston_config_section_get_string(section,
> + "gbm-format", &config->format, NULL);
> + weston_config_section_get_string(section, "seat", &config->seat, "");
> + return mode;
> +}
> +
> +static int
> +load_drm_backend(struct weston_compositor *c, const char *backend,
> + int *argc, char **argv, struct weston_config *wc)
> +{
> + struct drm_config *config;
> + struct weston_config_section *section;
> + int ret = 0;
> +
> + config = zalloc(sizeof *config);
> + if (!config)
> + return -1;
> +
> + const struct weston_option options[] = {
> + { WESTON_OPTION_INTEGER, "connector", 0,
> &config->base.connector },
> + { WESTON_OPTION_STRING, "seat", 0, &config->base.seat_id },
> + { WESTON_OPTION_INTEGER, "tty", 0, &config->base.tty },
> + { WESTON_OPTION_BOOLEAN, "current-mode", 0,
> + &config->use_current_mode },
> + { WESTON_OPTION_BOOLEAN, "use-pixman", 0,
> &config->base.use_pixman },
> + };
> +
> + parse_options(options, ARRAY_LENGTH(options), argc, argv);
> +
> + section = weston_config_get_section(wc, "core", NULL, NULL);
> + weston_config_section_get_string(section,
> + "gbm-format", &config->base.format,
> + NULL);
> +
> + config->base.configure_output = drm_configure_output;
> +
> + if (load_backend_new(c, backend, &config->base.base) < 0) {
> + ret = -1;
> + free(config->base.format);
> + free(config->base.seat_id);
> + free(config);
> + }
> +
> + return ret;
> +}
> +
> static int
> load_backend(struct weston_compositor *compositor, const char *backend,
> int *argc, char **argv, struct weston_config *config)
> {
> -#if 0
> if (strstr(backend, "drm-backend.so"))
> return load_drm_backend(compositor, backend, argc, argv,
> config);
> +#if 0
> else if (strstr(backend, "wayland-backend.so"))
> return load_wayland_backend(compositor, backend, argc, argv,
> config);
> else if (strstr(backend, "x11-backend.so"))
> @@ -785,7 +875,7 @@ int main(int argc, char *argv[])
> backend = weston_choose_default_backend();
> }
>
> - ec = weston_compositor_create(display, NULL);
> + ec = weston_compositor_create(display, config);
> if (ec == NULL) {
> weston_log("fatal: failed to create compositor\n");
> goto out;
> --
> 1.9.1
>
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