added an option to let seabios show BMP file as a logo.
Signed-off-by: Wayne Xia <xiawenc(a)linux.vnet.ibm.com>
---
Makefile | 4 +-
src/bmp.c | 136 +++++++++++++++++++++++++++++++++++++++++++++++++++++
src/bmp.h | 28 +++++++++++
src/bootsplash.c | 137 +++++++++++++++++++++++++++++++++++++++++++-----------
4 files changed, 275 insertions(+), 30 deletions(-)
create mode 100644 src/bmp.c
create mode 100644 src/bmp.h
diff --git a/Makefile b/Makefile
index a96c89d..2786c9e 100644
--- a/Makefile
+++ b/Makefile
@@ -15,12 +15,12 @@ SRCBOTH=misc.c pmm.c stacks.c output.c util.c block.c floppy.c ata.c mouse.c \
kbd.c pci.c serial.c clock.c pic.c cdrom.c ps2port.c smp.c resume.c \
pnpbios.c pirtable.c vgahooks.c ramdisk.c pcibios.c blockcmd.c \
usb.c usb-uhci.c usb-ohci.c usb-ehci.c usb-hid.c usb-msc.c \
- virtio-ring.c virtio-pci.c virtio-blk.c apm.c ahci.c
+ virtio-ring.c virtio-pci.c virtio-blk.c apm.c ahci.c bmp.c
SRC16=$(SRCBOTH) system.c disk.c font.c
SRC32FLAT=$(SRCBOTH) post.c shadow.c memmap.c coreboot.c boot.c \
acpi.c smm.c mptable.c smbios.c pciinit.c optionroms.c mtrr.c \
lzmadecode.c bootsplash.c jpeg.c usb-hub.c paravirt.c \
- pci_region.c biostables.c xen.c
+ pci_region.c biostables.c xen.c bmp.c
SRC32SEG=util.c output.c pci.c pcibios.c apm.c stacks.c
cc-option = $(shell if test -z "`$(1) $(2) -S -o /dev/null -xc \
diff --git a/src/bmp.c b/src/bmp.c
new file mode 100644
index 0000000..45baed7
--- /dev/null
+++ b/src/bmp.c
@@ -0,0 +1,136 @@
+/*
+* Basic BMP data process and Raw picture data handle functions.
+* Could be used to adjust pixel data format, get infomation, etc.
+*
+* Copyright (C) 2011 Wayne Xia <xiawenc(a)cn.ibm.com>
+*
+* This work is licensed under the terms of the GNU LGPLv3.
+*/
+#include "util.h"
+#include "bmp.h"
+
+#define bmp_load4byte(addr) ((addr)[0] + ((addr)[1]<<8) \
+ + ((addr)[2]<<16) + ((addr)[3]<<24))
+#define bmp_load2byte(addr) ((addr)[0] + ((addr)[1]<<8))
+
+typedef struct tagBITMAPFILEHEADER {
+ u8 bfType[2];
+ u8 bfSize[4];
+ u8 bfReserved1[2];
+ u8 bfReserved2[2];
+ u8 bfOffBits[4];
+} BITMAPFILEHEADER, tagBITMAPFILEHEADER;
+
+typedef struct tagBITMAPINFOHEADER {
+ u8 biSize[4];
+ u8 biWidth[4];
+ u8 biHeight[4];
+ u8 biPlanes[2];
+ u8 biBitCount[2];
+ u8 biCompression[4];
+ u8 biSizeImage[4];
+ u8 biXPelsPerMeter[4];
+ u8 biYPelsPerMeter[4];
+ u8 biClrUsed[4];
+ u8 biClrImportant[4];
+} BITMAPINFOHEADER, tagBITMAPINFOHEADER;
+
+typedef struct tagRGBQUAD {
+ u8 rgbBlue;
+ u8 rgbGreen;
+ u8 rgbRed;
+ u8 rgbReserved;
+} RGBQUAD, tagRGBQUAD;
+
+/* flat picture data adjusting function
+* description:
+* switch the pixel RGB data sequence if flag is on
+* switch the vertical line sequence if flag is on
+* arrange horizontal pixel data, add extra space in the dest buffer
+* for every line
+* requirement:
+* bytes_per_line_src <= bytes_per_line_dest
+* note:
+* src could be equal to dest, if u did not want to switch vertical line
+* sequence
+*/
+static void raw_data_format_adjust_24bpp(u8 *src, u8 *dest, int width,
+ int height, int bytes_per_line_src,
+ int bytes_per_line_dest, u8 switch_flag)
+{
+ int cy = height;
+ u8 *pd, *ps, *pd_valid, *ps_lastline;
+ u8 t;
+ u8 rgb_switch_flag = switch_flag & SWITCH_RGB;
+ u8 line_switch_flag = switch_flag & SWITCH_LINE;
+ while (cy > 0) {
+ ps = bytes_per_line_src*cy + src - 1;
+ if (line_switch_flag)
+ pd = bytes_per_line_dest * (height - cy + 1) + dest - 1;
+ else
+ pd = bytes_per_line_dest * cy + dest - 1;
+ ps_lastline = ps-bytes_per_line_src;
+ pd_valid = pd - (bytes_per_line_dest - bytes_per_line_src);
+ while (pd > pd_valid) {
+ *pd = 0;
+ pd--;
+ }
+ while (ps > ps_lastline) {
+ if (rgb_switch_flag) {
+ t = *ps;
+ *ps = *(ps-2);
+ *(ps-2) = t;
+ }
+ *(pd--) = *(ps--);
+ *(pd--) = *(ps--);
+ *(pd--) = *(ps--);
+ }
+ cy--;
+ }
+}
+
+struct bmp_decdata *bmp_alloc(void)
+{
+ struct bmp_decdata *bmp = malloc_tmphigh(sizeof(*bmp));
+ return bmp;
+}
+
+int bmp_decode(struct bmp_decdata *bmp, unsigned char *data, int data_size)
+{
+ if (data_size < 54)
+ return 1;
+
+ u16 bmp_filehead = bmp_load2byte(data + 0);
+ if (bmp_filehead != 0x4d42)
+ return 2;
+ u32 bmp_recordsize = bmp_load4byte(data + 2);
+ if (bmp_recordsize != data_size)
+ return 3;
+ u32 bmp_dataoffset = bmp_load4byte(data + 10);
+ bmp->datap = (unsigned char *)data + bmp_dataoffset;
+ bmp->width = bmp_load4byte(data + 18);
+ bmp->height = bmp_load4byte(data + 22);
+ bmp->bpp = bmp_load2byte(data + 28);
+ return 0;
+}
+
+void bmp_get_size(struct bmp_decdata *bmp, int *width, int *height)
+{
+ *width = bmp->width;
+ *height = bmp->height;
+}
+
+
+int bmp_show(struct bmp_decdata *bmp, unsigned char *pic, int width
+ , int height, int depth, int bytes_per_line_dest)
+{
+ if (bmp->datap == pic)
+ return 0;
+ /* now only support 24bpp bmp file */
+ if ((depth == 24) && (bmp->bpp == 24)) {
+ raw_data_format_adjust_24bpp(bmp->datap, pic, width, height,
+ 3 * width, bytes_per_line_dest, SWITCH_LINE);
+ return 0;
+ }
+ return 1;
+}
diff --git a/src/bmp.h b/src/bmp.h
new file mode 100644
index 0000000..ca16781
--- /dev/null
+++ b/src/bmp.h
@@ -0,0 +1,28 @@
+#ifndef BMP_H
+#define BMP_H
+#include "types.h"
+
+#define SWITCH_RGB 0x01
+#define SWITCH_LINE 0x02
+
+struct bmp_decdata {
+ struct tagRGBQUAD *quadp;
+ unsigned char *datap;
+ int width;
+ int height;
+ int bpp;
+};
+
+/* allocate decdata struct */
+struct bmp_decdata *bmp_alloc(void);
+
+/* extract information from bmp file data */
+int bmp_decode(struct bmp_decdata *bmp, unsigned char *data, int data_size);
+
+/* get bmp properties */
+void bmp_get_size(struct bmp_decdata *bmp, int *width, int *height);
+
+/* flush flat picture data to *pc */
+int bmp_show(struct bmp_decdata *bmp, unsigned char *pic, int width
+ , int height, int depth, int bytes_per_line_dest);
+#endif
diff --git a/src/bootsplash.c b/src/bootsplash.c
index cf1a603..1950c08 100644
--- a/src/bootsplash.c
+++ b/src/bootsplash.c
@@ -12,7 +12,7 @@
#include "jpeg.h" // splash
#include "biosvar.h" // SET_EBDA
#include "paravirt.h" // romfile_find
-
+#include "bmp.h"
/****************************************************************
* VESA structures
@@ -109,7 +109,7 @@ enable_vga_console(void)
static int
find_videomode(struct vesa_info *vesa_info, struct vesa_mode_info *mode_info
- , int width, int height)
+ , int width, int height, int bpp_req)
{
dprintf(3, "Finding vesa mode with dimensions %d/%d\n", width, height);
u16 *videomodes = SEGOFF_TO_FLATPTR(vesa_info->video_mode_ptr);
@@ -135,8 +135,13 @@ find_videomode(struct vesa_info *vesa_info, struct vesa_mode_info *mode_info
|| mode_info->y_resolution != height)
continue;
u8 depth = mode_info->bits_per_pixel;
- if (depth != 16 && depth != 24 && depth != 32)
- continue;
+ if (bpp_req == 0) {
+ if (depth != 16 && depth != 24 && depth != 32)
+ continue;
+ } else {
+ if (depth != bpp_req)
+ continue;
+ }
return videomode;
}
}
@@ -148,17 +153,49 @@ enable_bootsplash(void)
{
if (!CONFIG_BOOTSPLASH)
return;
- dprintf(3, "Checking for bootsplash\n");
+ dprintf(3, "start showing bootsplash\n");
+ u8 type = 0; /* 0 means jpg, 1 means bmp, default is 0=jpg */
int filesize;
- u8 *filedata = romfile_loadfile("bootsplash.jpg", &filesize);
- if (!filedata)
+ u8 *filedata;
+ int romsize;
+ u8 *romdata;
+
+ /* load rom data */
+ romdata = romfile_loadfile("bootsplash.jpg", &romsize);
+ if (!romdata) {
+ romdata = romfile_loadfile("bootsplash.bmp", &romsize);
+ if (!romdata) {
+ return;
+ }
+ }
+ if (romsize < 16) {
+ dprintf(1, "splash data in rom is too little\n");
return;
+ }
+
+ filedata = romdata;
+ filesize = romsize;
+
+ /* discover the file type */
+ u16 magic_id = *(u16 *)filedata;
+ if (magic_id == 0xd8ff) {
+ type = 0;
+ } else {
+ if (magic_id == 0x4d42) {
+ type = 1;
+ } else {
+ dprintf(1, "splash file have a wrong magci id %x\n", magic_id);
+ return;
+ }
+ }
- u8 *picture = NULL;
+ /* prepare the buff and other data structure */
+ u8 *picture = NULL; /* data buff used to be flushed to the video buf */
+ struct jpeg_decdata *jpeg = NULL;
+ struct bmp_decdata *bmp = NULL;
struct vesa_info *vesa_info = malloc_tmplow(sizeof(*vesa_info));
struct vesa_mode_info *mode_info = malloc_tmplow(sizeof(*mode_info));
- struct jpeg_decdata *jpeg = jpeg_alloc();
- if (!jpeg || !vesa_info || !mode_info) {
+ if (!vesa_info || !mode_info) {
warn_noalloc();
goto done;
}
@@ -184,20 +221,49 @@ enable_bootsplash(void)
vesa_info->vesa_version>>8, vesa_info->vesa_version&0xff,
vendor, product);
- // Parse jpeg and get image size.
- dprintf(5, "Decoding bootsplash.jpg\n");
- int ret = jpeg_decode(jpeg, filedata);
- if (ret) {
- dprintf(1, "jpeg_decode failed with return code %d...\n", ret);
- goto done;
+ /* retrieve basic info */
+ int ret, width, height;
+ int bpp_require = 0;
+ if (type == 0) {
+ jpeg = jpeg_alloc();
+ if (!jpeg) {
+ warn_noalloc();
+ goto done;
+ }
+ /* Parse jpeg and get image size. */
+ dprintf(5, "Decoding bootsplash.jpg\n");
+ ret = jpeg_decode(jpeg, filedata);
+ if (ret) {
+ dprintf(1, "jpeg_decode failed with return code %d...\n", ret);
+ goto done;
+ }
+ jpeg_get_size(jpeg, &width, &height);
+ } else {
+ bmp = bmp_alloc();
+ if (!bmp) {
+ warn_noalloc();
+ goto done;
+ }
+ /* Parse bmp and get image size. */
+ dprintf(5, "Decoding bootsplash.bmp\n");
+ ret = bmp_decode(bmp, filedata, filesize);
+ if (ret) {
+ dprintf(1, "bmp_decode failed with return code %d...\n", ret);
+ goto done;
+ }
+ bmp_get_size(bmp, &width, &height);
+ bpp_require = 24;
}
- int width, height;
- jpeg_get_size(jpeg, &width, &height);
+ /* jpeg would use 16 or 24 bpp video mode, BMP use 24bpp mode only */
// Try to find a graphics mode with the corresponding dimensions.
- int videomode = find_videomode(vesa_info, mode_info, width, height);
- if (videomode < 0)
+ int videomode = find_videomode(vesa_info, mode_info, width, height,
+ bpp_require);
+ if (videomode < 0) {
+ dprintf(1, "failed to find a videomode with %dx%d %dbpp (0=any).\n",
+ width, height, bpp_require);
goto done;
+ }
void *framebuffer = mode_info->phys_base_ptr;
int depth = mode_info->bits_per_pixel;
dprintf(3, "mode: %04x\n", videomode);
@@ -206,17 +272,29 @@ enable_bootsplash(void)
dprintf(3, "bits per pixel: %d\n", depth);
// Allocate space for image and decompress it.
- int imagesize = width * height * (depth / 8);
+ int imagesize = height * mode_info->bytes_per_scanline;
picture = malloc_tmphigh(imagesize);
if (!picture) {
warn_noalloc();
goto done;
}
- dprintf(5, "Decompressing bootsplash.jpg\n");
- ret = jpeg_show(jpeg, picture, width, height, depth);
- if (ret) {
- dprintf(1, "jpeg_show failed with return code %d...\n", ret);
- goto done;
+
+ /* decode the picture */
+ if (type == 0) {
+ dprintf(5, "Decompressing bootsplash.jpg\n");
+ ret = jpeg_show(jpeg, picture, width, height, depth);
+ if (ret) {
+ dprintf(1, "jpeg_show failed with return code %d...\n", ret);
+ goto done;
+ }
+ } else {
+ dprintf(5, "Decompressing bootsplash.bmp\n");
+ ret = bmp_show(bmp, picture, width, height, depth,
+ mode_info->bytes_per_scanline);
+ if (ret) {
+ dprintf(1, "bmp_show failed with return code %d...\n", ret);
+ goto done;
+ }
}
/* Switch to graphics mode */
@@ -231,7 +309,7 @@ enable_bootsplash(void)
}
/* Show the picture */
- dprintf(5, "Showing bootsplash.jpg\n");
+ dprintf(5, "Showing bootsplash picture\n");
iomemcpy(framebuffer, picture, imagesize);
dprintf(5, "Bootsplash copy complete\n");
BootsplashActive = 1;
@@ -241,7 +319,10 @@ done:
free(picture);
free(vesa_info);
free(mode_info);
- free(jpeg);
+ if (jpeg != NULL)
+ free(jpeg);
+ if (bmp != NULL)
+ free(bmp);
return;
}
--
1.7.6.rc1.1.g2c162b
