added an option to let seabios show BMP file as a logo.
Signed-off-by: Wayne Xia xiawenc@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@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; }
-
Wayne Xia