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Re: [Qemu-devel] [PATCH v6] showing a splash picture when start


From: Wayne Xia
Subject: Re: [Qemu-devel] [PATCH v6] showing a splash picture when start
Date: Wed, 27 Jul 2011 18:07:12 +0800
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.2.18) Gecko/20110616 Thunderbird/3.1.11

Thanks, following is my comments.

On 07/10/2011 05:09 AM, Wayne Xia wrote:
Added options to let qemu transfer two configuration files to bios:
"bootsplash.bmp" and "etc/boot-menu-wait", which could be specified by
command
-boot splash=P,splash-time=T
P is jpg/bmp file name or an absolute path, T have a max value of
0xffff, unit
is ms. With these two options, if user invoke qemu with menu=on
option, then
a splash picture would be showed in a given time. For example:
qemu -boot menu=on,splash=/root/boot.bmp,splash-time=5000
would make boot.bmp shown as a brand with 5 seconds in the booting up
process.
This feature need the new seabios's support, which could be got from git.

Please include documentation in qemu-doc.texi including information on
what image formats are supported and what restrictions are present (for
instance 24-bit depth bitmaps with what resolution?).

Regards,

Anthony Liguori

added the information in qemu-options.hx.


Signed-off-by: Wayne Xia<address@hidden>
---
hw/fw_cfg.c | 140
++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
qemu-config.c | 27 +++++++++++
sysemu.h | 3 +
vl.c | 17 +++++++-
4 files changed, 185 insertions(+), 2 deletions(-)

diff --git a/hw/fw_cfg.c b/hw/fw_cfg.c
index 85c8c3c..434fc96 100644
--- a/hw/fw_cfg.c
+++ b/hw/fw_cfg.c
@@ -26,6 +26,7 @@
#include "isa.h"
#include "fw_cfg.h"
#include "sysbus.h"
+#include "qemu-error.h"

/* debug firmware config */
//#define DEBUG_FW_CFG
@@ -56,6 +57,143 @@ struct FWCfgState {
Notifier machine_ready;
};

+#define JPG_FILE 0
+#define BMP_FILE 1
+
+static FILE *probe_splashfile(char *filename, int *file_sizep, int
*file_typep)
+{
+ FILE *fp = NULL;
+ int fop_ret;
+ int file_size;
+ int file_type = -1;
+ unsigned char buf[2] = {0, 0};
+ unsigned int filehead_value = 0;
+ int bmp_bpp;
+
+ fp = fopen(filename, "rb");
+ if (fp == NULL) {
+ error_report("failed to open file '%s'.", filename);
+ return fp;
+ }
+ /* check file size */
+ fseek(fp, 0L, SEEK_END);
+ file_size = ftell(fp);
+ if (file_size< 2) {
+ error_report("file size is less than 2 bytes '%s'.", filename);
+ fclose(fp);
+ fp = NULL;
+ return fp;
+ }
+ /* check magic ID */
+ fseek(fp, 0L, SEEK_SET);
+ fop_ret = fread(buf, 1, 2, fp);
+ filehead_value = (buf[0] + (buf[1]<< 8))& 0xffff;
+ if (filehead_value == 0xd8ff) {
+ file_type = JPG_FILE;
+ } else {
+ if (filehead_value == 0x4d42) {
+ file_type = BMP_FILE;
+ }
+ }
+ if (file_type< 0) {
+ error_report("'%s' not jpg/bmp file,head:0x%x.",
+ filename, filehead_value);
+ fclose(fp);
+ fp = NULL;
+ return fp;
+ }
+ /* check BMP bpp */
+ if (file_type == BMP_FILE) {
+ fseek(fp, 28, SEEK_SET);
+ fop_ret = fread(buf, 1, 2, fp);
+ bmp_bpp = (buf[0] + (buf[1]<< 8))& 0xffff;
+ if (bmp_bpp != 24) {
+ error_report("only 24bpp bmp file is supported.");
+ fclose(fp);
+ fp = NULL;
+ return fp;
+ }
+ }
+ /* return values */
+ *file_sizep = file_size;
+ *file_typep = file_type;
+ return fp;
+}
+
+static void fw_cfg_bootsplash(FWCfgState *s)
+{
+ int boot_splash_time = -1;
+ const char *boot_splash_filename = NULL;
+ char *p;
+ char *filename;
+ FILE *fp;
+ int fop_ret;
+ int file_size;
+ int file_type = -1;
+ const char *temp;
+
+ /* get user configuration */
+ QemuOptsList *plist = qemu_find_opts("boot-opts");
+ QemuOpts *opts = QTAILQ_FIRST(&plist->head);
+ if (opts != NULL) {
+ temp = qemu_opt_get(opts, "splash");
+ if (temp != NULL) {
+ boot_splash_filename = temp;
+ }
+ temp = qemu_opt_get(opts, "splash-time");
+ if (temp != NULL) {
+ p = (char *)temp;
+ boot_splash_time = strtol(p, (char **)&p, 10);
+ }
+ }
+
+ /* insert splash time if user configurated */
+ if (boot_splash_time>= 0) {
+ /* validate the input */
+ if (boot_splash_time> 0xffff) {
+ error_report("splash time is big than 65535, force it to 65535.");
+ boot_splash_time = 0xffff;
+ }
+ /* use little endian format */
+ qemu_extra_params_fw[0] = (uint8_t)(boot_splash_time& 0xff);
+ qemu_extra_params_fw[1] = (uint8_t)((boot_splash_time>> 8)& 0xff);
+ fw_cfg_add_file(s, "etc/boot-menu-wait", qemu_extra_params_fw, 2);
+ }
+
+ /* insert splash file if user configurated */
+ if (boot_splash_filename != NULL) {
+ filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, boot_splash_filename);
+ if (filename == NULL) {
+ error_report("failed to find file '%s'.", boot_splash_filename);
+ return;
+ }
+ /* probing the file */
+ fp = probe_splashfile(filename,&file_size,&file_type);
+ if (fp == NULL) {
+ qemu_free(filename);
+ return;
+ }
+ /* loading file data */
+ if (boot_splash_filedata != NULL) {
+ qemu_free(boot_splash_filedata);
+ }
+ boot_splash_filedata = qemu_malloc(file_size);
+ boot_splash_filedata_size = file_size;
+ fseek(fp, 0L, SEEK_SET);
+ fop_ret = fread(boot_splash_filedata, 1, file_size, fp);
+ fclose(fp);
+ /* insert data */
+ if (file_type == JPG_FILE) {
+ fw_cfg_add_file(s, "bootsplash.jpg",
+ boot_splash_filedata, boot_splash_filedata_size);
+ } else {
+ fw_cfg_add_file(s, "bootsplash.bmp",
+ boot_splash_filedata, boot_splash_filedata_size);
+ }
+ qemu_free(filename);
+ }
+}
+
static void fw_cfg_write(FWCfgState *s, uint8_t value)
{
int arch = !!(s->cur_entry& FW_CFG_ARCH_LOCAL);
@@ -352,7 +490,7 @@ FWCfgState *fw_cfg_init(uint32_t ctl_port,
uint32_t data_port,
fw_cfg_add_i16(s, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
fw_cfg_add_i16(s, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
fw_cfg_add_i16(s, FW_CFG_BOOT_MENU, (uint16_t)boot_menu);
-
+ fw_cfg_bootsplash(s);

s->machine_ready.notify = fw_cfg_machine_ready;
qemu_add_machine_init_done_notifier(&s->machine_ready);
diff --git a/qemu-config.c b/qemu-config.c
index c63741c..5b0b4a6 100644
--- a/qemu-config.c
+++ b/qemu-config.c
@@ -469,6 +469,32 @@ static QemuOptsList qemu_machine_opts = {
},
};

+QemuOptsList qemu_boot_opts = {
+ .name = "boot-opts",
+ .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
+ .desc = {
+ /* the three names below are not used now */
+ {
+ .name = "order",
+ .type = QEMU_OPT_STRING,
+ }, {
+ .name = "once",
+ .type = QEMU_OPT_STRING,
+ }, {
+ .name = "menu",
+ .type = QEMU_OPT_STRING,
+ /* following are really used */
+ }, {
+ .name = "splash",
+ .type = QEMU_OPT_STRING,
+ }, {
+ .name = "splash-time",
+ .type = QEMU_OPT_STRING,
+ },
+ { /*End of list */ }
+ },
+};
+
static QemuOptsList *vm_config_groups[32] = {
&qemu_drive_opts,
&qemu_chardev_opts,
@@ -484,6 +510,7 @@ static QemuOptsList *vm_config_groups[32] = {
#endif
&qemu_option_rom_opts,
&qemu_machine_opts,
+&qemu_boot_opts,
NULL,
};

diff --git a/sysemu.h b/sysemu.h
index d3013f5..bd830e5 100644
--- a/sysemu.h
+++ b/sysemu.h
@@ -123,6 +123,9 @@ extern int no_shutdown;
extern int semihosting_enabled;
extern int old_param;
extern int boot_menu;
+extern uint8_t *boot_splash_filedata;
+extern int boot_splash_filedata_size;
+extern uint8_t qemu_extra_params_fw[2];
extern QEMUClock *rtc_clock;

#define MAX_NODES 64
diff --git a/vl.c b/vl.c
index fcd7395..07293e0 100644
--- a/vl.c
+++ b/vl.c
@@ -228,6 +228,9 @@ int ctrl_grab = 0;
unsigned int nb_prom_envs = 0;
const char *prom_envs[MAX_PROM_ENVS];
int boot_menu;
+uint8_t *boot_splash_filedata;
+int boot_splash_filedata_size;
+uint8_t qemu_extra_params_fw[2];

typedef struct FWBootEntry FWBootEntry;

@@ -293,6 +296,14 @@ static struct {
{ .driver = "qxl-vga", .flag =&default_vga },
};

+static void res_free(void)
+{
+ if (boot_splash_filedata != NULL) {
+ qemu_free(boot_splash_filedata);
+ boot_splash_filedata = NULL;
+ }
+}
+
static int default_driver_check(QemuOpts *opts, void *opaque)
{
const char *driver = qemu_opt_get(opts, "driver");
@@ -2323,7 +2334,8 @@ int main(int argc, char **argv, char **envp)
case QEMU_OPTION_boot:
{
static const char * const params[] = {
- "order", "once", "menu", NULL
+ "order", "once", "menu",
+ "splash", "splash-time", NULL
};
char buf[sizeof(boot_devices)];
char *standard_boot_devices;
@@ -2366,6 +2378,8 @@ int main(int argc, char **argv, char **envp)
exit(1);
}
}
+ qemu_opts_parse(qemu_find_opts("boot-opts"),
+ optarg, 0);
}
}
break;
@@ -3327,6 +3341,7 @@ int main(int argc, char **argv, char **envp)
main_loop();
quit_timers();
net_cleanup();
+ res_free();

return 0;
}



--
Best Regards

Wayne Xia
mail:address@hidden
tel:86-010-82450803




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