* [OSS-Tools] [PATCH platsch V4 3/4] platsch: split into platsch and libplatsch
2024-06-14 9:23 [OSS-Tools] [PATCH platsch V4 1/4] platsch: constify draw_buffer LI Qingwu
2024-06-14 9:23 ` [OSS-Tools] [PATCH platsch V4 2/4] convert to meson build LI Qingwu
@ 2024-06-14 9:23 ` LI Qingwu
2024-06-14 13:47 ` Philipp Zabel
2024-06-14 9:23 ` [OSS-Tools] [PATCH platsch V4 4/4] Add spinner executable for boot animation and text show LI Qingwu
2 siblings, 1 reply; 7+ messages in thread
From: LI Qingwu @ 2024-06-14 9:23 UTC (permalink / raw)
To: Qing-wu.Li, oss-tools, m.felsch
Signed-off-by: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn>
---
libplatsch.c | 590 +++++++++++++++++++++++++++++++++++++++++++++++++++
libplatsch.h | 51 +++++
meson.build | 7 +-
platsch.c | 582 +-------------------------------------------------
4 files changed, 652 insertions(+), 578 deletions(-)
create mode 100644 libplatsch.c
create mode 100644 libplatsch.h
diff --git a/libplatsch.c b/libplatsch.c
new file mode 100644
index 0000000..1d48e0e
--- /dev/null
+++ b/libplatsch.c
@@ -0,0 +1,590 @@
+/*
+ * Copyright (C) 2019 Pengutronix, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
+ *
+ * Permission to use, copy, modify, and/or distribute this software
+ * for any purpose with or without fee is hereby granted.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Some code parts base on example code written in 2012 by David Herrmann
+ * <dh.herrmann@googlemail.com> and dedicated to the Public Domain. It was found
+ * in 2019 on
+ * https://raw.githubusercontent.com/dvdhrm/docs/master/drm-howto/modeset.c
+ */
+
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <libgen.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "libplatsch.h"
+#include <drm_fourcc.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+#include "libplatsch.h"
+
+void redirect_stdfd(void)
+{
+ int devnull = open("/dev/null", O_RDWR, 0);
+
+ if (devnull < 0) {
+ error("Failed to open /dev/null: %m\n");
+ return;
+ }
+
+ close(STDIN_FILENO);
+ dup2(devnull, STDIN_FILENO);
+ close(STDOUT_FILENO);
+ dup2(devnull, STDOUT_FILENO);
+ close(STDERR_FILENO);
+ dup2(devnull, STDERR_FILENO);
+ close(devnull);
+}
+
+ssize_t readfull(int fd, void *buf, size_t count)
+{
+ ssize_t ret = 0, err;
+
+ while (count > 0) {
+ err = read(fd, buf, count);
+ if (err < 0)
+ return err;
+ else if (err > 0) {
+ buf += err;
+ count -= err;
+ ret += err;
+ } else {
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
+void draw_buffer(struct modeset_dev *dev, const char *dir, const char *base)
+{
+ int fd_src;
+ char filename[128];
+ ssize_t size;
+ int ret;
+
+ /*
+ * make it easy and load a raw file in the right format instead of
+ * opening an (say) PNG and convert the image data to the right format.
+ */
+ ret = snprintf(filename, sizeof(filename), "%s/%s-%ux%u-%s.bin", dir, base, dev->width,
+ dev->height, dev->format->name);
+ if (ret >= sizeof(filename)) {
+ error("Failed to fit filename into buffer\n");
+ return;
+ }
+
+ fd_src = open(filename, O_RDONLY | O_CLOEXEC);
+ if (fd_src < 0) {
+ error("Failed to open %s: %m\n", filename);
+ return;
+ }
+
+ size = readfull(fd_src, dev->map, dev->size);
+ if (size < dev->size) {
+ if (size < 0)
+ error("Failed to read from %s: %m\n", filename);
+ else
+ error("Could only read %zd/%u bytes from %s\n", size, dev->size, filename);
+ }
+
+ ret = close(fd_src);
+ if (ret < 0) {
+ /* Nothing we can do about this, so just warn */
+ error("Failed to close image file\n");
+ }
+
+ return;
+}
+
+static struct modeset_dev *modeset_list = NULL;
+
+static int drmprepare_crtc(int fd, drmModeRes *res, drmModeConnector *conn, struct modeset_dev *dev)
+{
+ drmModeEncoder *enc;
+ unsigned int i, j;
+ int32_t crtc_id;
+ struct modeset_dev *iter;
+
+ /* first try the currently connected encoder+crtc */
+ if (conn->encoder_id) {
+ debug("connector #%d uses encoder #%d\n", conn->connector_id, conn->encoder_id);
+ enc = drmModeGetEncoder(fd, conn->encoder_id);
+ assert(enc);
+ assert(enc->encoder_id == conn->encoder_id);
+ } else {
+ debug("connector #%d has no active encoder\n", conn->connector_id);
+ enc = NULL;
+ dev->setmode = 1;
+ }
+
+ if (enc) {
+ if (enc->crtc_id) {
+ crtc_id = enc->crtc_id;
+ assert(crtc_id >= 0);
+
+ for (iter = modeset_list; iter; iter = iter->next) {
+ if (iter->crtc_id == crtc_id) {
+ crtc_id = -1;
+ break;
+ }
+ }
+
+ if (crtc_id > 0) {
+ debug("encoder #%d uses crtc #%d\n", enc->encoder_id, enc->crtc_id);
+ drmModeFreeEncoder(enc);
+ dev->crtc_id = crtc_id;
+ return 0;
+ } else {
+ debug("encoder #%d used crtc #%d, but that's in use\n",
+ enc->encoder_id, iter->crtc_id);
+ }
+ } else {
+ debug("encoder #%d doesn't have an active crtc\n", enc->encoder_id);
+ }
+
+ drmModeFreeEncoder(enc);
+ }
+
+ /* If the connector is not currently bound to an encoder or if the
+ * encoder+crtc is already used by another connector (actually unlikely
+ * but let's be safe), iterate all other available encoders to find a
+ * matching CRTC. */
+ for (i = 0; i < conn->count_encoders; ++i) {
+ enc = drmModeGetEncoder(fd, conn->encoders[i]);
+ if (!enc) {
+ error("Cannot retrieve encoder %u: %m\n", conn->encoders[i]);
+ continue;
+ }
+ assert(enc->encoder_id == conn->encoders[i]);
+
+ /* iterate all global CRTCs */
+ for (j = 0; j < res->count_crtcs; ++j) {
+ /* check whether this CRTC works with the encoder */
+ if (!(enc->possible_crtcs & (1 << j)))
+ continue;
+
+ /* check that no other device already uses this CRTC */
+ crtc_id = res->crtcs[j];
+ for (iter = modeset_list; iter; iter = iter->next) {
+ if (iter->crtc_id == crtc_id) {
+ crtc_id = -1;
+ break;
+ }
+ }
+
+ /* we have found a CRTC, so save it and return */
+ if (crtc_id >= 0) {
+ debug("encoder #%d will use crtc #%d\n", enc->encoder_id, crtc_id);
+ drmModeFreeEncoder(enc);
+ dev->crtc_id = crtc_id;
+ return 0;
+ }
+ }
+ drmModeFreeEncoder(enc);
+ }
+
+ error("Cannot find suitable CRTC for connector #%u\n", conn->connector_id);
+ return -ENOENT;
+}
+
+static int modeset_create_fb(int fd, struct modeset_dev *dev)
+{
+ struct drm_mode_create_dumb creq;
+ struct drm_mode_destroy_dumb dreq;
+ struct drm_mode_map_dumb mreq;
+ int ret;
+
+ /* create dumb buffer */
+ memset(&creq, 0, sizeof(creq));
+ creq.width = dev->width;
+ creq.height = dev->height;
+ creq.bpp = dev->format->bpp;
+ ret = drmIoctl(fd, DRM_IOCTL_MODE_CREATE_DUMB, &creq);
+ if (ret < 0) {
+ error("Cannot create dumb buffer: %m\n");
+ return -errno;
+ }
+ dev->stride = creq.pitch;
+ dev->size = creq.size;
+ dev->handle = creq.handle;
+
+ /* create framebuffer object for the dumb-buffer */
+ ret = drmModeAddFB2(fd, dev->width, dev->height,
+ dev->format->format,
+ (uint32_t[4]){ dev->handle, },
+ (uint32_t[4]){ dev->stride, },
+ (uint32_t[4]){ 0, },
+ &dev->fb_id, 0);
+ if (ret) {
+ ret = -errno;
+ error("Cannot create framebuffer: %m\n");
+ goto err_destroy;
+ }
+
+ /* prepare buffer for memory mapping */
+ memset(&mreq, 0, sizeof(mreq));
+ mreq.handle = dev->handle;
+ ret = drmIoctl(fd, DRM_IOCTL_MODE_MAP_DUMB, &mreq);
+ if (ret) {
+ ret = -errno;
+ error("Cannot get mmap offset: %m\n");
+ goto err_fb;
+ }
+
+ /* perform actual memory mapping */
+ dev->map = mmap(0, dev->size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, mreq.offset);
+ if (dev->map == MAP_FAILED) {
+ ret = -errno;
+ error("Cannot mmap dumb buffer: %m\n");
+ goto err_fb;
+ }
+
+ /*
+ * Clear the framebuffer. Normally it's overwritten later with some
+ * image data, but in case this fails, initialize to all-black.
+ */
+ memset(dev->map, 0x0, dev->size);
+
+ return 0;
+
+err_fb:
+ drmModeRmFB(fd, dev->fb_id);
+err_destroy:
+ memset(&dreq, 0, sizeof(dreq));
+ dreq.handle = dev->handle;
+ drmIoctl(fd, DRM_IOCTL_MODE_DESTROY_DUMB, &dreq);
+ return ret;
+}
+
+/* Returns lowercase connector type names with '_' for '-' */
+static char *get_normalized_conn_type_name(uint32_t connector_type)
+{
+ int i;
+ const char *connector_name;
+ char *normalized_name;
+
+ connector_name = drmModeGetConnectorTypeName(connector_type);
+ if (!connector_name)
+ return NULL;
+
+ normalized_name = strdup(connector_name);
+
+ for (i = 0; normalized_name[i]; i++) {
+ normalized_name[i] = tolower(normalized_name[i]);
+ if (normalized_name[i] == '-')
+ normalized_name[i] = '_';
+ }
+
+ return normalized_name;
+}
+
+static const struct platsch_format *platsch_format_find(const char *name)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(platsch_formats); i++)
+ if (!strcmp(platsch_formats[i].name, name))
+ return &platsch_formats[i];
+
+ return NULL;
+}
+
+static int set_env_connector_mode(drmModeConnector *conn, struct modeset_dev *dev)
+{
+ int ret, i = 0;
+ u_int32_t width = 0, height = 0;
+ const char *mode;
+ char *connector_type_name, mode_env_name[32], fmt_specifier[32] = "";
+ const struct platsch_format *format = NULL;
+
+ connector_type_name = get_normalized_conn_type_name(conn->connector_type);
+ if (!connector_type_name) {
+ error("could not look up name for connector type %u\n", conn->connector_type);
+ goto fallback;
+ }
+
+ ret = snprintf(mode_env_name, sizeof(mode_env_name), "platsch_%s%u_mode",
+ connector_type_name, conn->connector_type_id);
+ free(connector_type_name);
+ if (ret >= sizeof(mode_env_name)) {
+ error("failed to fit platsch env mode variable name into buffer\n");
+ return -EFAULT;
+ }
+
+ /* check for connector mode configuration in environment */
+ debug("looking up %s env variable\n", mode_env_name);
+ mode = getenv(mode_env_name);
+ if (!mode)
+ goto fallback;
+
+ /* format suffix is optional */
+ ret = sscanf(mode, "%ux%u@%s", &width, &height, fmt_specifier);
+ if (ret < 2) {
+ error("error while scanning %s for mode\n", mode_env_name);
+ return -EFAULT;
+ }
+
+ /* use first mode matching given resolution */
+ for (i = 0; i < conn->count_modes; i++) {
+ drmModeModeInfo mode = conn->modes[i];
+ if (mode.hdisplay == width && mode.vdisplay == height) {
+ memcpy(&dev->mode, &mode, sizeof(dev->mode));
+ dev->width = width;
+ dev->height = height;
+ break;
+ }
+ }
+
+ if (i == conn->count_modes) {
+ error("no mode available matching %ux%u\n", width, height);
+ return -ENOENT;
+ }
+
+ format = platsch_format_find(fmt_specifier);
+ if (!format) {
+ if (strlen(fmt_specifier))
+ error("unknown format specifier %s\n", fmt_specifier);
+ goto fallback_format;
+ }
+
+ dev->format = format;
+
+ return 0;
+
+fallback:
+ memcpy(&dev->mode, &conn->modes[0], sizeof(dev->mode));
+ dev->width = conn->modes[0].hdisplay;
+ dev->height = conn->modes[0].vdisplay;
+ debug("using default mode for connector #%u\n", conn->connector_id);
+
+fallback_format:
+ dev->format = &platsch_formats[0];
+ debug("using default format %s for connector #%u\n", dev->format->name, conn->connector_id);
+
+ return 0;
+}
+
+static int drmprepare_connector(int fd, drmModeRes *res, drmModeConnector *conn,
+ struct modeset_dev *dev)
+{
+ int ret;
+
+ /* check if a monitor is connected */
+ if (conn->connection != DRM_MODE_CONNECTED) {
+ error("Ignoring unused connector #%u\n", conn->connector_id);
+ return -ENOENT;
+ }
+
+ /* check if there is at least one valid mode */
+ if (conn->count_modes == 0) {
+ error("no valid mode for connector #%u\n", conn->connector_id);
+ return -EFAULT;
+ }
+
+ /* configure mode information in our device structure */
+ ret = set_env_connector_mode(conn, dev);
+ if (ret) {
+ error("no valid mode for connector #%u\n", conn->connector_id);
+ return ret;
+ }
+ debug("mode for connector #%u is %ux%u@%s\n", conn->connector_id, dev->width, dev->height,
+ dev->format->name);
+
+ /* find a crtc for this connector */
+ ret = drmprepare_crtc(fd, res, conn, dev);
+ if (ret) {
+ error("no valid crtc for connector #%u\n", conn->connector_id);
+ return ret;
+ }
+
+ /* create a framebuffer for this CRTC */
+ ret = modeset_create_fb(fd, dev);
+ if (ret) {
+ error("cannot create framebuffer for connector #%u\n", conn->connector_id);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int drmprepare(int fd)
+{
+ drmModeRes *res;
+ drmModeConnector *conn;
+ unsigned int i;
+ struct modeset_dev *dev;
+ int ret;
+
+ /* retrieve resources */
+ res = drmModeGetResources(fd);
+ if (!res) {
+ error("cannot retrieve DRM resources: %m\n");
+ return -errno;
+ }
+
+ debug("Found %d connectors\n", res->count_connectors);
+
+ /* iterate all connectors */
+ for (i = 0; i < res->count_connectors; ++i) {
+ /* get information for each connector */
+ conn = drmModeGetConnector(fd, res->connectors[i]);
+ if (!conn) {
+ error("Cannot retrieve DRM connector #%u: %m\n", res->connectors[i]);
+ continue;
+ }
+ assert(conn->connector_id == res->connectors[i]);
+
+ debug("Connector #%u has type %s\n", conn->connector_id,
+ drmModeGetConnectorTypeName(conn->connector_type));
+
+ /* create a device structure */
+ dev = malloc(sizeof(*dev));
+ if (!dev) {
+ error("Cannot allocate memory for connector #%u: %m\n", res->connectors[i]);
+ continue;
+ }
+ memset(dev, 0, sizeof(*dev));
+ dev->conn_id = conn->connector_id;
+
+ ret = drmprepare_connector(fd, res, conn, dev);
+ if (ret) {
+ if (ret != -ENOENT) {
+ error("Cannot setup device for connector #%u: %m\n",
+ res->connectors[i]);
+ }
+ free(dev);
+ drmModeFreeConnector(conn);
+ continue;
+ }
+
+ /* free connector data and link device into global list */
+ drmModeFreeConnector(conn);
+ dev->next = modeset_list;
+ modeset_list = dev;
+ }
+
+ /* free resources again */
+ drmModeFreeResources(res);
+ return 0;
+}
+
+static int drmfd;
+
+struct modeset_dev *init(void)
+{
+ static char drmdev[128];
+ int ret = 0, i;
+
+ for (i = 0; i < 64; i++) {
+ struct drm_mode_card_res res = {0};
+
+ /*
+ * XXX: Maybe use drmOpen instead?
+ * (Where should name/busid come from?)
+ * XXX: Loop through drm devices to find one with connectors.
+ */
+ ret = snprintf(drmdev, sizeof(drmdev), DRM_DEV_NAME, DRM_DIR_NAME, i);
+ if (ret >= sizeof(drmdev)) {
+ error("Huh, device name overflowed buffer\n");
+ goto execinit;
+ }
+
+ drmfd = open(drmdev, O_RDWR | O_CLOEXEC, 0);
+ if (drmfd < 0) {
+ error("Failed to open drm device: %m\n");
+ goto execinit;
+ }
+
+ ret = drmIoctl(drmfd, DRM_IOCTL_MODE_GETRESOURCES, &res);
+ if (ret < 0) {
+ close(drmfd);
+ continue;
+ } else {
+ /* Device found */
+ break;
+ }
+ }
+
+ if (i == 64) {
+ error("No suitable DRM device found\n");
+ goto execinit;
+ }
+
+ ret = drmprepare(drmfd);
+ if (ret) {
+ error("Failed to prepare DRM device\n");
+ goto execinit;
+ }
+
+ return modeset_list;
+
+execinit:
+ return NULL;
+}
+
+void update_display(struct modeset_dev *dev)
+{
+ int ret = 0;
+
+ if (dev->setmode) {
+ ret = drmModeSetCrtc(drmfd, dev->crtc_id, dev->fb_id, 0, 0, &dev->conn_id, 1,
+ &dev->mode);
+ if (ret) {
+ error("Cannot set CRTC for connector #%u: %m\n", dev->conn_id);
+ }
+ dev->setmode = 0;
+ } else {
+ ret = drmModePageFlip(drmfd, dev->crtc_id, dev->fb_id, 0, NULL);
+ if (ret) {
+ error("Page flip failed on connector #%u: %m\n", dev->conn_id);
+ }
+ }
+}
+
+void draw(struct modeset_dev *dev, const char *dir, const char *base)
+{
+ draw_buffer(dev, dir, base);
+ update_display(dev);
+}
+
+void finish(void) { drmDropMaster(drmfd); }
+
+void deinit(void)
+{
+ struct modeset_dev *iter;
+
+ for (iter = modeset_list; iter; iter = iter->next) {
+ if (iter->map) {
+ munmap(iter->map, iter->size);
+ }
+ if (iter->fb_id) {
+ drmModeRmFB(drmfd, iter->fb_id);
+ }
+ free(iter);
+ }
+}
diff --git a/libplatsch.h b/libplatsch.h
new file mode 100644
index 0000000..77f74a9
--- /dev/null
+++ b/libplatsch.h
@@ -0,0 +1,51 @@
+#ifndef __LIBPLATSCH_H__
+#define __LIBPLATSCH_H__
+
+#include <xf86drmMode.h>
+#include <drm_fourcc.h>
+#include "libplatsch.h"
+#include <unistd.h>
+
+
+
+#define debug(fmt, ...) printf("%s:%d: " fmt, __func__, __LINE__, ##__VA_ARGS__)
+#define error(fmt, ...) fprintf(stderr, fmt, ##__VA_ARGS__)
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*a))
+
+struct platsch_format {
+ uint32_t format;
+ uint32_t bpp;
+ const char *name;
+};
+
+struct modeset_dev {
+ struct modeset_dev *next;
+
+ uint32_t width;
+ uint32_t height;
+ uint32_t stride;
+ uint32_t size;
+ const struct platsch_format *format;
+ uint32_t handle;
+ void *map;
+ bool setmode;
+ drmModeModeInfo mode;
+ uint32_t fb_id;
+ uint32_t conn_id;
+ uint32_t crtc_id;
+};
+
+static const struct platsch_format platsch_formats[] = {
+ { DRM_FORMAT_RGB565, 16, "RGB565" }, /* default */
+ { DRM_FORMAT_XRGB8888, 32, "XRGB8888" },
+};
+
+ssize_t readfull(int fd, void *buf, size_t count);
+struct modeset_dev *init(void);
+void draw(struct modeset_dev *dev, const char *dir, const char *base);
+void finish(void);
+void redirect_stdfd(void);
+void update_display(struct modeset_dev *dev);
+
+#endif
\ No newline at end of file
diff --git a/meson.build b/meson.build
index 0aadbe9..4c2ad7b 100644
--- a/meson.build
+++ b/meson.build
@@ -1,13 +1,10 @@
project('platsch', 'c', version: '2024.06.0')
dep_libdrm = dependency('libdrm', version : '>= 2.4.112', required : true)
-sources = ['platsch.c']
+sources = ['libplatsch.c']
-# Define the headers
-headers = ['platsch.h']
-# Create the platsch executable
-executable('platsch',
+libplatsch = static_library('libplatsch',
sources,
dependencies: dep_libdrm,
install: true,
diff --git a/platsch.c b/platsch.c
index 1aaa8d5..917fec0 100644
--- a/platsch.c
+++ b/platsch.c
@@ -19,528 +19,15 @@
* https://raw.githubusercontent.com/dvdhrm/docs/master/drm-howto/modeset.c
*/
-#include <assert.h>
-#include <ctype.h>
-#include <errno.h>
#include <getopt.h>
#include <libgen.h>
-#include <stdarg.h>
-#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-#include <fcntl.h>
-#include <xf86drm.h>
-#include <xf86drmMode.h>
-#include <drm_fourcc.h>
+#include "libplatsch.h"
-#define debug(fmt, ...) printf("%s:%d: " fmt, __func__, __LINE__, ##__VA_ARGS__)
-#define error(fmt, ...) fprintf(stderr, fmt, ##__VA_ARGS__)
-
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*a))
-
-struct platsch_format {
- uint32_t format;
- uint32_t bpp;
- const char *name;
-};
-
-static const struct platsch_format platsch_formats[] = {
- { DRM_FORMAT_RGB565, 16, "RGB565" }, /* default */
- { DRM_FORMAT_XRGB8888, 32, "XRGB8888" },
-};
-
-void redirect_stdfd(void)
-{
- int devnull = open("/dev/null", O_RDWR, 0);
-
- if (devnull < 0) {
- error("Failed to open /dev/null: %m\n");
- return;
- }
-
- close(STDIN_FILENO);
- dup2(devnull, STDIN_FILENO);
- close(STDOUT_FILENO);
- dup2(devnull, STDOUT_FILENO);
- close(STDERR_FILENO);
- dup2(devnull, STDERR_FILENO);
- close(devnull);
-}
-
-ssize_t readfull(int fd, void *buf, size_t count)
-{
- ssize_t ret = 0, err;
-
- while (count > 0) {
- err = read(fd, buf, count);
- if (err < 0)
- return err;
- else if (err > 0) {
- buf += err;
- count -= err;
- ret += err;
- } else {
- return ret;
- }
- }
-
- return ret;
-}
-
-struct modeset_dev {
- struct modeset_dev *next;
-
- uint32_t width;
- uint32_t height;
- uint32_t stride;
- uint32_t size;
- const struct platsch_format *format;
- uint32_t handle;
- void *map;
-
- bool setmode;
- drmModeModeInfo mode;
- uint32_t fb_id;
- uint32_t conn_id;
- uint32_t crtc_id;
-};
-
-void draw_buffer(struct modeset_dev *dev, const char *dir, const char *base)
-{
- int fd_src;
- char filename[128];
- ssize_t size;
- int ret;
-
- /*
- * make it easy and load a raw file in the right format instead of
- * opening an (say) PNG and convert the image data to the right format.
- */
- ret = snprintf(filename, sizeof(filename),
- "%s/%s-%ux%u-%s.bin",
- dir, base, dev->width, dev->height, dev->format->name);
- if (ret >= sizeof(filename)) {
- error("Failed to fit filename into buffer\n");
- return;
- }
-
- fd_src = open(filename, O_RDONLY | O_CLOEXEC);
- if (fd_src < 0) {
- error("Failed to open %s: %m\n", filename);
- return;
- }
-
- size = readfull(fd_src, dev->map, dev->size);
- if (size < dev->size) {
- if (size < 0)
- error("Failed to read from %s: %m\n", filename);
- else
- error("Could only read %zd/%u bytes from %s\n",
- size, dev->size, filename);
- }
-
- ret = close(fd_src);
- if (ret < 0) {
- /* Nothing we can do about this, so just warn */
- error("Failed to close image file\n");
- }
-
- return;
-}
-
-static struct modeset_dev *modeset_list = NULL;
-
-static int drmprepare_crtc(int fd, drmModeRes *res, drmModeConnector *conn,
- struct modeset_dev *dev)
-{
- drmModeEncoder *enc;
- unsigned int i, j;
- int32_t crtc_id;
- struct modeset_dev *iter;
-
- /* first try the currently connected encoder+crtc */
- if (conn->encoder_id) {
- debug("connector #%d uses encoder #%d\n", conn->connector_id,
- conn->encoder_id);
- enc = drmModeGetEncoder(fd, conn->encoder_id);
- assert(enc);
- assert(enc->encoder_id == conn->encoder_id);
- } else {
- debug("connector #%d has no active encoder\n",
- conn->connector_id);
- enc = NULL;
- dev->setmode = 1;
- }
-
- if (enc) {
- if (enc->crtc_id) {
- crtc_id = enc->crtc_id;
- assert(crtc_id >= 0);
-
- for (iter = modeset_list; iter; iter = iter->next) {
- if (iter->crtc_id == crtc_id) {
- crtc_id = -1;
- break;
- }
- }
-
- if (crtc_id > 0) {
- debug("encoder #%d uses crtc #%d\n",
- enc->encoder_id, enc->crtc_id);
- drmModeFreeEncoder(enc);
- dev->crtc_id = crtc_id;
- return 0;
- } else {
- debug("encoder #%d used crtc #%d, but that's in use\n",
- enc->encoder_id, iter->crtc_id);
- }
- } else {
- debug("encoder #%d doesn't have an active crtc\n",
- enc->encoder_id);
- }
-
- drmModeFreeEncoder(enc);
- }
-
- /* If the connector is not currently bound to an encoder or if the
- * encoder+crtc is already used by another connector (actually unlikely
- * but let's be safe), iterate all other available encoders to find a
- * matching CRTC. */
- for (i = 0; i < conn->count_encoders; ++i) {
- enc = drmModeGetEncoder(fd, conn->encoders[i]);
- if (!enc) {
- error("Cannot retrieve encoder %u: %m\n",
- conn->encoders[i]);
- continue;
- }
- assert(enc->encoder_id == conn->encoders[i]);
-
- /* iterate all global CRTCs */
- for (j = 0; j < res->count_crtcs; ++j) {
- /* check whether this CRTC works with the encoder */
- if (!(enc->possible_crtcs & (1 << j)))
- continue;
-
- /* check that no other device already uses this CRTC */
- crtc_id = res->crtcs[j];
- for (iter = modeset_list; iter; iter = iter->next) {
- if (iter->crtc_id == crtc_id) {
- crtc_id = -1;
- break;
- }
- }
-
- /* we have found a CRTC, so save it and return */
- if (crtc_id >= 0) {
- debug("encoder #%d will use crtc #%d\n",
- enc->encoder_id, crtc_id);
- drmModeFreeEncoder(enc);
- dev->crtc_id = crtc_id;
- return 0;
- }
-
- }
- drmModeFreeEncoder(enc);
- }
-
- error("Cannot find suitable CRTC for connector #%u\n",
- conn->connector_id);
- return -ENOENT;
-}
-
-static int modeset_create_fb(int fd, struct modeset_dev *dev)
-{
- struct drm_mode_create_dumb creq;
- struct drm_mode_destroy_dumb dreq;
- struct drm_mode_map_dumb mreq;
- int ret;
-
- /* create dumb buffer */
- memset(&creq, 0, sizeof(creq));
- creq.width = dev->width;
- creq.height = dev->height;
- creq.bpp = dev->format->bpp;
- ret = drmIoctl(fd, DRM_IOCTL_MODE_CREATE_DUMB, &creq);
- if (ret < 0) {
- error("Cannot create dumb buffer: %m\n");
- return -errno;
- }
- dev->stride = creq.pitch;
- dev->size = creq.size;
- dev->handle = creq.handle;
-
- /* create framebuffer object for the dumb-buffer */
- ret = drmModeAddFB2(fd, dev->width, dev->height,
- dev->format->format,
- (uint32_t[4]){ dev->handle, },
- (uint32_t[4]){ dev->stride, },
- (uint32_t[4]){ 0, },
- &dev->fb_id, 0);
- if (ret) {
- ret = -errno;
- error("Cannot create framebuffer: %m\n");
- goto err_destroy;
- }
-
- /* prepare buffer for memory mapping */
- memset(&mreq, 0, sizeof(mreq));
- mreq.handle = dev->handle;
- ret = drmIoctl(fd, DRM_IOCTL_MODE_MAP_DUMB, &mreq);
- if (ret) {
- ret = -errno;
- error("Cannot get mmap offset: %m\n");
- goto err_fb;
- }
-
- /* perform actual memory mapping */
- dev->map = mmap(0, dev->size, PROT_READ | PROT_WRITE, MAP_SHARED,
- fd, mreq.offset);
- if (dev->map == MAP_FAILED) {
- ret = -errno;
- error("Cannot mmap dumb buffer: %m\n");
- goto err_fb;
- }
-
- /*
- * Clear the framebuffer. Normally it's overwritten later with some
- * image data, but in case this fails, initialize to all-black.
- */
- memset(dev->map, 0x0, dev->size);
-
- return 0;
-
-err_fb:
- drmModeRmFB(fd, dev->fb_id);
-err_destroy:
- memset(&dreq, 0, sizeof(dreq));
- dreq.handle = dev->handle;
- drmIoctl(fd, DRM_IOCTL_MODE_DESTROY_DUMB, &dreq);
- return ret;
-}
-
-/* Returns lowercase connector type names with '_' for '-' */
-static char *get_normalized_conn_type_name(uint32_t connector_type)
-{
- int i;
- const char *connector_name;
- char *normalized_name;
-
- connector_name = drmModeGetConnectorTypeName(connector_type);
- if (!connector_name)
- return NULL;
-
- normalized_name = strdup(connector_name);
-
- for (i = 0; normalized_name[i]; i++) {
- normalized_name[i] = tolower(normalized_name[i]);
- if (normalized_name[i] == '-')
- normalized_name[i] = '_';
- }
-
- return normalized_name;
-}
-
-static const struct platsch_format *platsch_format_find(const char *name)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(platsch_formats); i++)
- if (!strcmp(platsch_formats[i].name, name))
- return &platsch_formats[i];
-
- return NULL;
-}
-
-static int set_env_connector_mode(drmModeConnector *conn,
- struct modeset_dev *dev)
-{
- int ret, i = 0;
- u_int32_t width = 0, height = 0;
- const char *mode;
- char *connector_type_name, mode_env_name[32], fmt_specifier[32] = "";
- const struct platsch_format *format = NULL;
-
- connector_type_name = get_normalized_conn_type_name(conn->connector_type);
- if (!connector_type_name) {
- error("could not look up name for connector type %u\n",
- conn->connector_type);
- goto fallback;
- }
-
- ret = snprintf(mode_env_name, sizeof(mode_env_name), "platsch_%s%u_mode",
- connector_type_name, conn->connector_type_id);
- free(connector_type_name);
- if (ret >= sizeof(mode_env_name)) {
- error("failed to fit platsch env mode variable name into buffer\n");
- return -EFAULT;
- }
-
- /* check for connector mode configuration in environment */
- debug("looking up %s env variable\n", mode_env_name);
- mode = getenv(mode_env_name);
- if (!mode)
- goto fallback;
-
- /* format suffix is optional */
- ret = sscanf(mode, "%ux%u@%s", &width, &height, fmt_specifier);
- if (ret < 2) {
- error("error while scanning %s for mode\n", mode_env_name);
- return -EFAULT;
- }
-
- /* use first mode matching given resolution */
- for (i = 0; i < conn->count_modes; i++) {
- drmModeModeInfo mode = conn->modes[i];
- if (mode.hdisplay == width && mode.vdisplay == height) {
- memcpy(&dev->mode, &mode, sizeof(dev->mode));
- dev->width = width;
- dev->height = height;
- break;
- }
- }
-
- if (i == conn->count_modes) {
- error("no mode available matching %ux%u\n", width, height);
- return -ENOENT;
- }
-
- format = platsch_format_find(fmt_specifier);
- if (!format) {
- if (strlen(fmt_specifier))
- error("unknown format specifier %s\n", fmt_specifier);
- goto fallback_format;
- }
-
- dev->format = format;
-
- return 0;
-
-fallback:
- memcpy(&dev->mode, &conn->modes[0], sizeof(dev->mode));
- dev->width = conn->modes[0].hdisplay;
- dev->height = conn->modes[0].vdisplay;
- debug("using default mode for connector #%u\n", conn->connector_id);
-
-fallback_format:
- dev->format = &platsch_formats[0];
- debug("using default format %s for connector #%u\n", dev->format->name,
- conn->connector_id);
-
- return 0;
-}
-
-static int drmprepare_connector(int fd, drmModeRes *res, drmModeConnector *conn,
- struct modeset_dev *dev)
-{
- int ret;
-
- /* check if a monitor is connected */
- if (conn->connection != DRM_MODE_CONNECTED) {
- error("Ignoring unused connector #%u\n", conn->connector_id);
- return -ENOENT;
- }
-
- /* check if there is at least one valid mode */
- if (conn->count_modes == 0) {
- error("no valid mode for connector #%u\n", conn->connector_id);
- return -EFAULT;
- }
-
- /* configure mode information in our device structure */
- ret = set_env_connector_mode(conn, dev);
- if (ret) {
- error("no valid mode for connector #%u\n", conn->connector_id);
- return ret;
- }
- debug("mode for connector #%u is %ux%u@%s\n",
- conn->connector_id, dev->width, dev->height, dev->format->name);
-
- /* find a crtc for this connector */
- ret = drmprepare_crtc(fd, res, conn, dev);
- if (ret) {
- error("no valid crtc for connector #%u\n", conn->connector_id);
- return ret;
- }
-
- /* create a framebuffer for this CRTC */
- ret = modeset_create_fb(fd, dev);
- if (ret) {
- error("cannot create framebuffer for connector #%u\n",
- conn->connector_id);
- return ret;
- }
-
- return 0;
-}
-
-static int drmprepare(int fd)
-{
- drmModeRes *res;
- drmModeConnector *conn;
- unsigned int i;
- struct modeset_dev *dev;
- int ret;
-
- /* retrieve resources */
- res = drmModeGetResources(fd);
- if (!res) {
- error("cannot retrieve DRM resources: %m\n");
- return -errno;
- }
-
- debug("Found %d connectors\n", res->count_connectors);
-
- /* iterate all connectors */
- for (i = 0; i < res->count_connectors; ++i) {
- /* get information for each connector */
- conn = drmModeGetConnector(fd, res->connectors[i]);
- if (!conn) {
- error("Cannot retrieve DRM connector #%u: %m\n",
- res->connectors[i]);
- continue;
- }
- assert(conn->connector_id == res->connectors[i]);
-
- debug("Connector #%u has type %s\n", conn->connector_id,
- drmModeGetConnectorTypeName(conn->connector_type));
-
- /* create a device structure */
- dev = malloc(sizeof(*dev));
- if (!dev) {
- error("Cannot allocate memory for connector #%u: %m\n",
- res->connectors[i]);
- continue;
- }
- memset(dev, 0, sizeof(*dev));
- dev->conn_id = conn->connector_id;
-
- ret = drmprepare_connector(fd, res, conn, dev);
- if (ret) {
- if (ret != -ENOENT) {
- error("Cannot setup device for connector #%u: %m\n",
- res->connectors[i]);
- }
- free(dev);
- drmModeFreeConnector(conn);
- continue;
- }
-
- /* free connector data and link device into global list */
- drmModeFreeConnector(conn);
- dev->next = modeset_list;
- modeset_list = dev;
- }
-
- /* free resources again */
- drmModeFreeResources(res);
- return 0;
-}
static struct option longopts[] =
{
@@ -561,14 +48,12 @@ static void usage(const char *prog)
int main(int argc, char *argv[])
{
char **initsargv;
- int drmfd;
- char drmdev[128];
struct modeset_dev *iter;
bool pid1 = getpid() == 1;
const char *dir = "/usr/share/platsch";
const char *base = "splash";
const char *env;
- int ret = 0, c, i;
+ int ret = 0, c;
env = getenv("platsch_directory");
if (env)
@@ -580,7 +65,7 @@ int main(int argc, char *argv[])
if (!pid1) {
while ((c = getopt_long(argc, argv, "hd:b:", longopts, NULL)) != EOF) {
- switch(c) {
+ switch (c) {
case 'd':
dir = optarg;
break;
@@ -604,67 +89,18 @@ int main(int argc, char *argv[])
}
}
- for (i = 0; i < 64; i++) {
- struct drm_mode_card_res res = {0};
-
- /*
- * XXX: Maybe use drmOpen instead?
- * (Where should name/busid come from?)
- * XXX: Loop through drm devices to find one with connectors.
- */
- ret = snprintf(drmdev, sizeof(drmdev), DRM_DEV_NAME, DRM_DIR_NAME, i);
- if (ret >= sizeof(drmdev)) {
- error("Huh, device name overflowed buffer\n");
- goto execinit;
- }
-
- drmfd = open(drmdev, O_RDWR | O_CLOEXEC, 0);
- if (drmfd < 0) {
- error("Failed to open drm device: %m\n");
- goto execinit;
- }
-
- ret = drmIoctl(drmfd, DRM_IOCTL_MODE_GETRESOURCES, &res);
- if (ret < 0) {
- close(drmfd);
- continue;
- } else {
- /* Device found */
- break;
- }
+ struct modeset_dev *modeset_list = init();
+ if (!modeset_list) {
+ error("Failed to initialize modeset\n");
+ return EXIT_FAILURE;
}
- ret = drmprepare(drmfd);
- assert(!ret);
-
for (iter = modeset_list; iter; iter = iter->next) {
-
- /* draw first then set the mode */
- draw_buffer(iter, dir, base);
-
- if (iter->setmode) {
- debug("set crtc\n");
-
- ret = drmModeSetCrtc(drmfd, iter->crtc_id, iter->fb_id,
- 0, 0, &iter->conn_id, 1, &iter->mode);
- if (ret)
- error("Cannot set CRTC for connector #%u: %m\n",
- iter->conn_id);
- } else {
- debug("page flip\n");
- ret = drmModePageFlip(drmfd, iter->crtc_id, iter->fb_id,
- 0, NULL);
- if (ret)
- error("Page flip failed on connector #%u: %m\n",
- iter->conn_id);
- }
+ draw(iter, dir, base);
}
- ret = drmDropMaster(drmfd);
- if (ret)
- error("Failed to drop master on drm device\n");
+ finish();
-execinit:
if (pid1) {
ret = fork();
if (ret < 0) {
--
2.34.1
^ permalink raw reply [flat|nested] 7+ messages in thread* [OSS-Tools] [PATCH platsch V4 4/4] Add spinner executable for boot animation and text show
2024-06-14 9:23 [OSS-Tools] [PATCH platsch V4 1/4] platsch: constify draw_buffer LI Qingwu
2024-06-14 9:23 ` [OSS-Tools] [PATCH platsch V4 2/4] convert to meson build LI Qingwu
2024-06-14 9:23 ` [OSS-Tools] [PATCH platsch V4 3/4] platsch: split into platsch and libplatsch LI Qingwu
@ 2024-06-14 9:23 ` LI Qingwu
2024-06-14 10:44 ` LI Qingwu
2 siblings, 1 reply; 7+ messages in thread
From: LI Qingwu @ 2024-06-14 9:23 UTC (permalink / raw)
To: Qing-wu.Li, oss-tools, m.felsch
This commit introduces a new executable, spinner,
which supports two types of animations for boot sequences:
1 static PNG and text support.
2 rotates square PNG images per frame
3 shows a sequence of square images from a strip of PNG images.
Signed-off-by: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn>
---
README.rst | 37 ++++++
meson.build | 24 ++++
meson_options.txt | 1 +
spinner.c | 299 ++++++++++++++++++++++++++++++++++++++++++++++
spinner_conf.c | 67 +++++++++++
spinner_conf.h | 33 +++++
6 files changed, 461 insertions(+)
create mode 100644 meson_options.txt
create mode 100644 spinner.c
create mode 100644 spinner_conf.c
create mode 100644 spinner_conf.h
diff --git a/README.rst b/README.rst
index f1c0812..a0f7f7e 100644
--- a/README.rst
+++ b/README.rst
@@ -149,3 +149,40 @@ Compiling Instructions
meson setup build
meson compile -C build
+
+
+Spinner - Splash Screen with Animation
+======================================
+
+The `spinner` executable is designed to provide boot animations. It supports two types of animations:
+
+1. **static PNG and text support**: Show a static png image and text.
+1. **Square PNG Rotation Animation**: Rotates a square PNG image.
+2. **Sequence Move Rectangle Animation**: Displays a sequence of square images from a strip of PNG images.
+
+spinner Configuration
+---------------------
+
+The configuration for the `spinner` executable is read from a configuration file,
+with a default path of `/usr/share/platsch/spinner.conf`.
+The directory of the configuration file can be set via the `platsch_directory` environment variable.
+
+
+spinner Configuration
+---------------------
+
+Here is a sample of a configuration file (`spinner.conf`):
+
+.. code-block:: ini
+
+ symbol="/usr/share/platsch/Spinner.png"
+ fps=20
+ text=""
+ text_x=350
+ text_y=400
+ text_font="Sans"
+ text_size=30
+
+Set text to empty if you don't want to display any text.
+Set the symbol to empty if you don't want to display any animation.
+The background image is indicated by ``--directory`` and ``--basename``.
diff --git a/meson.build b/meson.build
index 4c2ad7b..46413a0 100644
--- a/meson.build
+++ b/meson.build
@@ -10,3 +10,27 @@ libplatsch = static_library('libplatsch',
install: true,
include_directories: include_directories('.')
)
+
+# Create the spinner executable if SPINNER true
+if get_option('SPINNER')
+ spinner_dep = [
+ dependency('cairo', required: true),
+ dependency('libdrm', required: true)
+ ]
+
+ spinner_src = [
+ 'spinner.c',
+ 'spinner_conf.c'
+ ]
+
+ args = ['-DSPINNER']
+
+ executable('spinner',
+ spinner_src,
+ dependencies: spinner_dep,
+ link_with: libplatsch,
+ c_args: args,
+ install: true,
+ include_directories: include_directories('.')
+ )
+endif
diff --git a/meson_options.txt b/meson_options.txt
new file mode 100644
index 0000000..d1149fe
--- /dev/null
+++ b/meson_options.txt
@@ -0,0 +1 @@
+option('SPINNER', type: 'boolean', value: false, description: 'Enable spinner build')
diff --git a/spinner.c b/spinner.c
new file mode 100644
index 0000000..ef9ee6b
--- /dev/null
+++ b/spinner.c
@@ -0,0 +1,299 @@
+
+#include <cairo.h>
+#include <math.h>
+#include <sys/time.h>
+
+#include "libplatsch.h"
+#include "spinner_conf.h"
+
+typedef struct spinner {
+ cairo_format_t fmt;
+ cairo_surface_t *background_surface;
+ cairo_surface_t *symbol_surface;
+ cairo_surface_t *drawing_surface;
+ cairo_t *cr_background;
+ cairo_t *cr_drawing;
+ cairo_t *disp_cr;
+ int background_height;
+ int background_width;
+ int display_height;
+ int display_width;
+ int symbol_height;
+ int symbol_width;
+ struct modeset_dev *dev;
+ struct spinner *next;
+} spinner_t;
+
+void on_draw_Sequence_animation(cairo_t *cr, spinner_t *data)
+{
+ static int current_frame;
+ int num_frames = data->symbol_width / data->symbol_height;
+ int frame_width = data->symbol_height;
+
+ cairo_set_source_surface(cr, data->background_surface, 0, 0);
+ cairo_paint(cr);
+
+ cairo_save(cr);
+
+ cairo_translate(cr, data->display_width / 2, data->display_height / 2);
+
+ cairo_set_source_surface(cr, data->symbol_surface,
+ -frame_width / 2 - current_frame * frame_width, -frame_width / 2);
+
+ cairo_rectangle(cr, -frame_width / 2, -frame_width / 2, frame_width, frame_width);
+ cairo_clip(cr);
+ cairo_paint(cr);
+
+ cairo_restore(cr);
+
+ current_frame = (current_frame + 1) % num_frames;
+}
+
+void on_draw_rotation_animation(cairo_t *cr, spinner_t *data)
+{
+ static float angle = 0.0;
+
+ cairo_set_source_surface(cr, data->background_surface, 0, 0);
+ cairo_paint(cr);
+ cairo_save(cr);
+ cairo_translate(cr, data->background_width / 2, data->background_height / 2);
+ cairo_rotate(cr, angle);
+ cairo_translate(cr, -data->symbol_width / 2, -data->symbol_height / 2);
+ cairo_set_source_surface(cr, data->symbol_surface, 0, 0);
+ cairo_paint(cr);
+ cairo_restore(cr);
+ angle += 0.1;
+ if (angle > 2 * M_PI)
+ angle = 0.0;
+}
+
+static uint32_t convert_to_cairo_format(uint32_t format)
+{
+ switch (format) {
+ case DRM_FORMAT_RGB565:
+ return CAIRO_FORMAT_RGB16_565;
+ case DRM_FORMAT_XRGB8888:
+ return CAIRO_FORMAT_ARGB32;
+ }
+ return CAIRO_FORMAT_INVALID;
+}
+
+static void cairo_draw_text(cairo_t *cr, Config config)
+{
+ if (strlen(config.text) > 0) {
+ cairo_select_font_face(cr, config.text_font, CAIRO_FONT_SLANT_NORMAL,
+ CAIRO_FONT_WEIGHT_NORMAL);
+ cairo_set_font_size(cr, (double)config.text_size);
+ cairo_move_to(cr, config.text_x, config.text_y);
+ cairo_set_source_rgb(cr, 0, 0, 0);
+ cairo_show_text(cr, config.text);
+ }
+}
+
+static int cairo_create_display_surface(struct modeset_dev *dev, spinner_t *spinner_node)
+{
+ cairo_surface_t *disp_surface = cairo_image_surface_create_for_data(
+ dev->map, convert_to_cairo_format(dev->format->format), dev->width, dev->height,
+ dev->stride);
+ if (cairo_surface_status(disp_surface)) {
+ error("Failed to create cairo surface\n");
+ return EXIT_FAILURE;
+ }
+ spinner_node->display_width = cairo_image_surface_get_width(disp_surface);
+ spinner_node->display_height = cairo_image_surface_get_height(disp_surface);
+ spinner_node->fmt = cairo_image_surface_get_format(disp_surface);
+ spinner_node->disp_cr = cairo_create(disp_surface);
+ return EXIT_SUCCESS;
+}
+
+// create a surface and paint background image
+static int cairo_create_background_surface(spinner_t *spinner_node, Config config, const char *dir,
+ const char *base)
+{
+ char filename[128];
+ int ret;
+
+ ret = snprintf(filename, sizeof(filename), "%s/%s.png", dir, base);
+ if (ret >= sizeof(filename)) {
+ error("Failed to fit filename into buffer\n");
+ return EXIT_FAILURE;
+ }
+
+ spinner_node->background_surface = cairo_image_surface_create(
+ spinner_node->fmt, spinner_node->display_width, spinner_node->display_height);
+ if (cairo_surface_status(spinner_node->background_surface)) {
+ error("Failed to create background surface\n");
+ return EXIT_FAILURE;
+ }
+
+ cairo_surface_t *bk_img_surface = cairo_image_surface_create_from_png(filename);
+
+ if (cairo_surface_status(bk_img_surface)) {
+ error("Failed to create cairo surface from %s\n", filename);
+ return EXIT_FAILURE;
+ }
+
+ int image_width = cairo_image_surface_get_width(bk_img_surface);
+ int image_height = cairo_image_surface_get_height(bk_img_surface);
+ double scale_x = (double)spinner_node->display_width / image_width;
+ double scale_y = (double)spinner_node->display_height / image_height;
+
+ spinner_node->cr_background = cairo_create(spinner_node->background_surface);
+ cairo_scale(spinner_node->cr_background, scale_x, scale_y);
+ cairo_set_source_surface(spinner_node->cr_background, bk_img_surface, 0, 0);
+
+ spinner_node->background_width =
+ cairo_image_surface_get_width(spinner_node->background_surface);
+ spinner_node->background_height =
+ cairo_image_surface_get_height(spinner_node->background_surface);
+
+ cairo_paint(spinner_node->cr_background);
+ cairo_draw_text(spinner_node->cr_background, config);
+ return EXIT_SUCCESS;
+}
+
+static int cairo_create_symbol_surface(spinner_t *spinner_node, Config config)
+{
+ if (strlen(config.symbol) == 0)
+ return EXIT_FAILURE;
+
+ spinner_node->symbol_surface = cairo_image_surface_create_from_png(config.symbol);
+ if (cairo_surface_status(spinner_node->symbol_surface)) {
+ error("Failed loading %s\n", config.symbol);
+ spinner_node->symbol_surface = NULL;
+ return EXIT_FAILURE;
+ }
+ spinner_node->symbol_width = cairo_image_surface_get_width(spinner_node->symbol_surface);
+ spinner_node->symbol_height = cairo_image_surface_get_height(spinner_node->symbol_surface);
+ return EXIT_SUCCESS;
+}
+
+int main(int argc, char *argv[])
+{
+ bool pid1 = getpid() == 1;
+ char filename[128];
+ Config config = DEFAULT_CONFIG;
+ const char *base = "splash";
+ const char *dir = "/usr/share/platsch";
+ const char *env;
+ int ret;
+ long elapsed_time;
+
+ spinner_t *spinner_list = NULL, *spinner_node = NULL, *spinner_iter = NULL;
+ struct modeset_dev *iter;
+ struct timeval start, end;
+
+ env = getenv("platsch_directory");
+ if (env)
+ dir = env;
+
+ env = getenv("platsch_basename");
+ if (env)
+ base = env;
+
+ ret = snprintf(filename, sizeof(filename), "%s/spinner.conf", dir);
+ if (ret >= sizeof(filename)) {
+ error("Failed to fit filename\n");
+ return EXIT_FAILURE;
+ }
+
+ parseConfig(filename, &config);
+
+ struct modeset_dev *modeset_list = init();
+
+ if (!modeset_list) {
+ error("Failed to initialize modeset\n");
+ return EXIT_FAILURE;
+ }
+
+ for (iter = modeset_list; iter; iter = iter->next) {
+ spinner_node = (spinner_t *)malloc(sizeof(spinner_t));
+ if (!spinner_node) {
+ error("Failed to allocate memory for spinner_node\n");
+ return EXIT_FAILURE;
+ }
+ memset(spinner_node, 0, sizeof(*spinner_node));
+
+ if (cairo_create_display_surface(iter, spinner_node))
+ return EXIT_FAILURE;
+
+ if (cairo_create_background_surface(spinner_node, config, dir, base))
+ return EXIT_FAILURE;
+
+ cairo_create_symbol_surface(spinner_node, config);
+
+ spinner_node->drawing_surface = cairo_image_surface_create(
+ spinner_node->fmt, spinner_node->display_width, spinner_node->display_height);
+ if (cairo_surface_status(spinner_node->drawing_surface)) {
+ error("Failed to create drawing surface\n");
+ return EXIT_FAILURE;
+ }
+ // create cairo context for drawing surface to avoid frlickering
+ spinner_node->cr_drawing = cairo_create(spinner_node->drawing_surface);
+ // draw static image with text as first frame
+ cairo_set_source_surface(spinner_node->disp_cr, spinner_node->background_surface, 0,
+ 0);
+ cairo_paint(spinner_node->disp_cr);
+ update_display(iter);
+
+ spinner_node->next = spinner_list;
+ spinner_list = spinner_node;
+ }
+
+ char **initsargv;
+
+ ret = fork();
+ if (ret < 0)
+ error("failed to fork for init: %m\n");
+ else if (ret == 0)
+ /*
+ * Always fork to make sure that got the required
+ * resources for drawing the animation in the child.
+ */
+ goto drawing;
+
+ if (pid1) {
+ initsargv = calloc(sizeof(argv[0]), argc + 1);
+
+ if (!initsargv) {
+ error("failed to allocate argv for init\n");
+ return EXIT_FAILURE;
+ }
+ memcpy(initsargv, argv, argc * sizeof(argv[0]));
+ initsargv[0] = "/sbin/init";
+ initsargv[argc] = NULL;
+
+ execv("/sbin/init", initsargv);
+
+ error("failed to exec init: %m\n");
+
+ return EXIT_FAILURE;
+ }
+ return 0;
+
+drawing:
+ while (true) {
+ gettimeofday(&start, NULL);
+ for (spinner_iter = spinner_list; spinner_iter; spinner_iter = spinner_iter->next) {
+ if (spinner_node->symbol_surface == NULL)
+ usleep(1000000 / config.fps);
+ if (spinner_node->symbol_width / spinner_node->symbol_height > 2)
+ on_draw_Sequence_animation(spinner_iter->cr_drawing, spinner_iter);
+ else
+ on_draw_rotation_animation(spinner_iter->cr_drawing, spinner_iter);
+
+ cairo_set_source_surface(spinner_iter->disp_cr,
+ spinner_iter->drawing_surface, 0, 0);
+ cairo_paint(spinner_iter->disp_cr);
+ }
+ gettimeofday(&end, NULL);
+ elapsed_time =
+ (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_usec - start.tv_usec);
+
+ long sleep_time = (1000000 / config.fps) - elapsed_time;
+
+ if (sleep_time > 0)
+ usleep(sleep_time);
+ }
+ redirect_stdfd();
+}
diff --git a/spinner_conf.c b/spinner_conf.c
new file mode 100644
index 0000000..491b1c3
--- /dev/null
+++ b/spinner_conf.c
@@ -0,0 +1,67 @@
+#include "spinner_conf.h"
+#include <errno.h>
+
+int parseConfig(const char *filename, Config *config)
+{
+ char *value_end;
+ char *value_start;
+ char key[MAX_LINE_LENGTH];
+ char line[MAX_LINE_LENGTH];
+ char value[MAX_LINE_LENGTH];
+ FILE *file;
+
+ file = fopen(filename, "r");
+ if (file == NULL) {
+ fprintf(stderr, "Unable to open file: %s\n", filename);
+ return -EFAULT;
+ }
+
+ while (fgets(line, sizeof(line), file)) {
+ if (strlen(line) > MAX_LINE_LENGTH) {
+ fprintf(stderr, "conf string too long\n");
+ continue;
+ }
+ if (line[0] != '#' && sscanf(line, "%[^=]=%[^\n]", key, value) == 2) {
+ value_start = strchr(line, '=') + 1;
+ value_end = line + strlen(line) - 1;
+
+ while (isspace(*value_start))
+ value_start++;
+ while (isspace(*value_end) || *value_end == '"')
+ value_end--;
+
+ if (*value_start == '"')
+ value_start++;
+ if (*value_end == '"')
+ value_end--;
+
+ if (value_end < value_start) {
+ memset(value, 0, sizeof(value));
+ continue;
+ } else {
+ strncpy(value, value_start, value_end - value_start + 1);
+ value[value_end - value_start + 1] = '\0';
+ value[sizeof(value) - 1] = '\0';
+ }
+ value[MAX_LINE_LENGTH - 1] = '\0';
+
+ if (strcmp(key, "symbol") == 0) {
+ strncpy(config->symbol, value, MAX_LINE_LENGTH);
+ } else if (strcmp(key, "text") == 0) {
+ strncpy(config->text, value, MAX_LINE_LENGTH);
+ } else if (strcmp(key, "fps") == 0) {
+ config->fps = atoi(value);
+ } else if (strcmp(key, "text_x") == 0) {
+ config->text_x = atoi(value);
+ } else if (strcmp(key, "text_y") == 0) {
+ config->text_y = atoi(value);
+ } else if (strcmp(key, "text_font") == 0) {
+ strncpy(config->text_font, value, MAX_LINE_LENGTH);
+ } else if (strcmp(key, "text_size") == 0) {
+ config->text_size = atoi(value);
+ }
+ }
+ }
+ fclose(file);
+ return 0;
+}
diff --git a/spinner_conf.h b/spinner_conf.h
new file mode 100644
index 0000000..4f8501b
--- /dev/null
+++ b/spinner_conf.h
@@ -0,0 +1,33 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+#ifndef __SPINNER_CONF_H__
+#define __SPINNER_CONF_H__
+
+
+#define MAX_LINE_LENGTH 128
+
+typedef struct {
+ char symbol[MAX_LINE_LENGTH];
+ int fps;
+ int text_x;
+ int text_y;
+ char text_font[MAX_LINE_LENGTH];
+ int text_size;
+ char text[MAX_LINE_LENGTH];
+} Config;
+
+int parseConfig(const char *filename, Config *config);
+
+#define DEFAULT_CONFIG { \
+ .symbol = "", \
+ .fps = 20, \
+ .text_x = 0, \
+ .text_y = 0, \
+ .text_font = "Sans", \
+ .text_size = 30, \
+ .text = "" \
+}
+#endif
--
2.34.1
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