// SPDX-License-Identifier: GPL-2.0 #include <linux/fb.h>#include <linux/linux_logo.h> #include "fb_internal.h" bool fb_center_logo __read_mostly;int fb_logo_count __read_mostly = -1; static inline unsigned int safe_shift(unsigned int d, int n){ return n < 0 ? d >> -n : d << n;} static void fb_set_logocmap(struct fb_info *info, const struct linux_logo *logo){ struct fb_cmap palette_cmap; u16 palette_green[16]; u16 palette_blue[16]; u16 palette_red[16]; int i, j, n; const unsigned char *clut = logo->clut; palette_cmap.start = 0; palette_cmap.len = 16; palette_cmap.red = palette_red; palette_cmap.green = palette_green; palette_cmap.blue = palette_blue; palette_cmap.transp = NULL; for (i = 0; i < logo->clutsize; i += n) { n = logo->clutsize - i; /* palette_cmap provides space for only 16 colors at once */ if (n > 16) n = 16; palette_cmap.start = 32 + i; palette_cmap.len = n; for (j = 0; j < n; ++j) { palette_cmap.red[j] = clut[0] << 8 | clut[0]; palette_cmap.green[j] = clut[1] << 8 | clut[1]; palette_cmap.blue[j] = clut[2] << 8 | clut[2]; clut += 3; } fb_set_cmap(&palette_cmap, info); }} static void fb_set_logo_truepalette(struct fb_info *info, const struct linux_logo *logo, u32 *palette){ static const unsigned char mask[] = { 0, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; unsigned char redmask, greenmask, bluemask; int redshift, greenshift, blueshift; int i; const unsigned char *clut = logo->clut; /* * We have to create a temporary palette since console palette is only * 16 colors long. */ /* Bug: Doesn't obey msb_right ... (who needs that?) */ redmask = mask[info->var.red.length < 8 ? info->var.red.length : 8]; greenmask = mask[info->var.green.length < 8 ? info->var.green.length : 8]; bluemask = mask[info->var.blue.length < 8 ? info->var.blue.length : 8]; redshift = info->var.red.offset - (8 - info->var.red.length); greenshift = info->var.green.offset - (8 - info->var.green.length); blueshift = info->var.blue.offset - (8 - info->var.blue.length); for (i = 0; i < logo->clutsize; i++) { palette[i+32] = (safe_shift((clut[0] & redmask), redshift) | safe_shift((clut[1] & greenmask), greenshift) | safe_shift((clut[2] & bluemask), blueshift)); clut += 3; }} static void fb_set_logo_directpalette(struct fb_info *info, const struct linux_logo *logo, u32 *palette){ int redshift, greenshift, blueshift; int i; redshift = info->var.red.offset; greenshift = info->var.green.offset; blueshift = info->var.blue.offset; for (i = 32; i < 32 + logo->clutsize; i++) palette[i] = i << redshift | i << greenshift | i << blueshift;} static void fb_set_logo(struct fb_info *info, const struct linux_logo *logo, u8 *dst, int depth){ int i, j, k; const u8 *src = logo->data; u8 xor = (info->fix.visual == FB_VISUAL_MONO01) ? 0xff : 0; u8 fg = 1, d; switch (fb_get_color_depth(&info->var, &info->fix)) { case 1: fg = 1; break; case 2: fg = 3; break; default: fg = 7; break; } if (info->fix.visual == FB_VISUAL_MONO01 || info->fix.visual == FB_VISUAL_MONO10) fg = ~((u8) (0xfff << info->var.green.length)); switch (depth) { case 4: for (i = 0; i < logo->height; i++) for (j = 0; j < logo->width; src++) { *dst++ = *src >> 4; j++; if (j < logo->width) { *dst++ = *src & 0x0f; j++; } } break; case 1: for (i = 0; i < logo->height; i++) { for (j = 0; j < logo->width; src++) { d = *src ^ xor; for (k = 7; k >= 0 && j < logo->width; k--) { *dst++ = ((d >> k) & 1) ? fg : 0; j++; } } } break; }} /* * Three (3) kinds of logo maps exist. linux_logo_clut224 (>16 colors), * linux_logo_vga16 (16 colors) and linux_logo_mono (2 colors). Depending on * the visual format and color depth of the framebuffer, the DAC, the * pseudo_palette, and the logo data will be adjusted accordingly. * * Case 1 - linux_logo_clut224: * Color exceeds the number of console colors (16), thus we set the hardware DAC * using fb_set_cmap() appropriately. The "needs_cmapreset" flag will be set. * * For visuals that require color info from the pseudo_palette, we also construct * one for temporary use. The "needs_directpalette" or "needs_truepalette" flags * will be set. * * Case 2 - linux_logo_vga16: * The number of colors just matches the console colors, thus there is no need * to set the DAC or the pseudo_palette. However, the bitmap is packed, ie, * each byte contains color information for two pixels (upper and lower nibble). * To be consistent with fb_imageblit() usage, we therefore separate the two * nibbles into separate bytes. The "depth" flag will be set to 4. * * Case 3 - linux_logo_mono: * This is similar with Case 2. Each byte contains information for 8 pixels. * We isolate each bit and expand each into a byte. The "depth" flag will * be set to 1. */static struct logo_data { int depth; int needs_directpalette; int needs_truepalette; int needs_cmapreset; const struct linux_logo *logo;} fb_logo __read_mostly; static void fb_rotate_logo_ud(const u8 *in, u8 *out, u32 width, u32 height){ u32 size = width * height, i; out += size - 1; for (i = size; i--; ) *out-- = *in++;} static void fb_rotate_logo_cw(const u8 *in, u8 *out, u32 width, u32 height){ int i, j, h = height - 1; for (i = 0; i < height; i++) for (j = 0; j < width; j++) out[height * j + h - i] = *in++;} static void fb_rotate_logo_ccw(const u8 *in, u8 *out, u32 width, u32 height){ int i, j, w = width - 1; for (i = 0; i < height; i++) for (j = 0; j < width; j++) out[height * (w - j) + i] = *in++;} static void fb_rotate_logo(struct fb_info *info, u8 *dst, struct fb_image *image, int rotate){ u32 tmp; if (rotate == FB_ROTATE_UD) { fb_rotate_logo_ud(image->data, dst, image->width, image->height); image->dx = info->var.xres - image->width - image->dx; image->dy = info->var.yres - image->height - image->dy; } else if (rotate == FB_ROTATE_CW) { fb_rotate_logo_cw(image->data, dst, image->width, image->height); swap(image->width, image->height); tmp = image->dy; image->dy = image->dx; image->dx = info->var.xres - image->width - tmp; } else if (rotate == FB_ROTATE_CCW) { fb_rotate_logo_ccw(image->data, dst, image->width, image->height); swap(image->width, image->height); tmp = image->dx; image->dx = image->dy; image->dy = info->var.yres - image->height - tmp; } image->data = dst;} static void fb_do_show_logo(struct fb_info *info, struct fb_image *image, int rotate, unsigned int num){ unsigned int x; if (image->width > info->var.xres || image->height > info->var.yres) return; if (rotate == FB_ROTATE_UR) { for (x = 0; x < num && image->dx + image->width <= info->var.xres; x++) { info->fbops->fb_imageblit(info, image); image->dx += image->width + 8; } } else if (rotate == FB_ROTATE_UD) { u32 dx = image->dx; for (x = 0; x < num && image->dx <= dx; x++) { info->fbops->fb_imageblit(info, image); image->dx -= image->width + 8; } } else if (rotate == FB_ROTATE_CW) { for (x = 0; x < num && image->dy + image->height <= info->var.yres; x++) { info->fbops->fb_imageblit(info, image); image->dy += image->height + 8; } } else if (rotate == FB_ROTATE_CCW) { u32 dy = image->dy; for (x = 0; x < num && image->dy <= dy; x++) { info->fbops->fb_imageblit(info, image); image->dy -= image->height + 8; } }} static int fb_show_logo_line(struct fb_info *info, int rotate, const struct linux_logo *logo, int y, unsigned int n){ u32 *palette = NULL, *saved_pseudo_palette = NULL; unsigned char *logo_new = NULL, *logo_rotate = NULL; struct fb_image image; /* Return if the frame buffer is not mapped or suspended */ if (logo == NULL || info->state != FBINFO_STATE_RUNNING || info->fbops->owner) return 0; image.depth = 8; image.data = logo->data; if (fb_logo.needs_cmapreset) fb_set_logocmap(info, logo); if (fb_logo.needs_truepalette || fb_logo.needs_directpalette) { palette = kmalloc(256 * 4, GFP_KERNEL); if (palette == NULL) return 0; if (fb_logo.needs_truepalette) fb_set_logo_truepalette(info, logo, palette); else fb_set_logo_directpalette(info, logo, palette); saved_pseudo_palette = info->pseudo_palette; info->pseudo_palette = palette; } if (fb_logo.depth <= 4) { logo_new = kmalloc_array(logo->width, logo->height, GFP_KERNEL); if (logo_new == NULL) { kfree(palette); if (saved_pseudo_palette) info->pseudo_palette = saved_pseudo_palette; return 0; } image.data = logo_new; fb_set_logo(info, logo, logo_new, fb_logo.depth); } if (fb_center_logo) { int xres = info->var.xres; int yres = info->var.yres; if (rotate == FB_ROTATE_CW || rotate == FB_ROTATE_CCW) { xres = info->var.yres; yres = info->var.xres; } while (n && (n * (logo->width + 8) - 8 > xres)) --n; image.dx = (xres - (n * (logo->width + 8) - 8)) / 2; image.dy = y ?: (yres - logo->height) / 2; } else { image.dx = 0; image.dy = y; } image.width = logo->width; image.height = logo->height; if (rotate) { logo_rotate = kmalloc_array(logo->width, logo->height, GFP_KERNEL); if (logo_rotate) fb_rotate_logo(info, logo_rotate, &image, rotate); } fb_do_show_logo(info, &image, rotate, n); kfree(palette); if (saved_pseudo_palette != NULL) info->pseudo_palette = saved_pseudo_palette; kfree(logo_new); kfree(logo_rotate); return image.dy + logo->height;} #ifdef CONFIG_FB_LOGO_EXTRA #define FB_LOGO_EX_NUM_MAX 10static struct logo_data_extra { const struct linux_logo *logo; unsigned int n;} fb_logo_ex[FB_LOGO_EX_NUM_MAX];static unsigned int fb_logo_ex_num; void fb_append_extra_logo(const struct linux_logo *logo, unsigned int n){ if (!n || fb_logo_ex_num == FB_LOGO_EX_NUM_MAX) return; fb_logo_ex[fb_logo_ex_num].logo = logo; fb_logo_ex[fb_logo_ex_num].n = n; fb_logo_ex_num++;} static int fb_prepare_extra_logos(struct fb_info *info, unsigned int height, unsigned int yres){ unsigned int i; /* FIXME: logo_ex supports only truecolor fb. */ if (info->fix.visual != FB_VISUAL_TRUECOLOR) fb_logo_ex_num = 0; for (i = 0; i < fb_logo_ex_num; i++) { if (fb_logo_ex[i].logo->type != fb_logo.logo->type) { fb_logo_ex[i].logo = NULL; continue; } height += fb_logo_ex[i].logo->height; if (height > yres) { height -= fb_logo_ex[i].logo->height; fb_logo_ex_num = i; break; } } return height;} static int fb_show_extra_logos(struct fb_info *info, int y, int rotate){ unsigned int i; for (i = 0; i < fb_logo_ex_num; i++) y = fb_show_logo_line(info, rotate, fb_logo_ex[i].logo, y, fb_logo_ex[i].n); return y;}#endif /* CONFIG_FB_LOGO_EXTRA */ int fb_prepare_logo(struct fb_info *info, int rotate){ int depth = fb_get_color_depth(&info->var, &info->fix); unsigned int yres; int height; memset(&fb_logo, 0, sizeof(struct logo_data)); if (info->flags & FBINFO_MISC_TILEBLITTING || info->fbops->owner || !fb_logo_count) return 0; if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) { depth = info->var.blue.length; if (info->var.red.length < depth) depth = info->var.red.length; if (info->var.green.length < depth) depth = info->var.green.length; } if (info->fix.visual == FB_VISUAL_STATIC_PSEUDOCOLOR && depth > 4) { /* assume console colormap */ depth = 4; } /* Return if no suitable logo was found */ fb_logo.logo = fb_find_logo(depth); if (!fb_logo.logo) return 0; if (rotate == FB_ROTATE_UR || rotate == FB_ROTATE_UD) yres = info->var.yres; else yres = info->var.xres; if (fb_logo.logo->height > yres) { fb_logo.logo = NULL; return 0; } /* What depth we asked for might be different from what we get */ if (fb_logo.logo->type == LINUX_LOGO_CLUT224) fb_logo.depth = 8; else if (fb_logo.logo->type == LINUX_LOGO_VGA16) fb_logo.depth = 4; else fb_logo.depth = 1; if (fb_logo.depth > 4 && depth > 4) { switch (info->fix.visual) { case FB_VISUAL_TRUECOLOR: fb_logo.needs_truepalette = 1; break; case FB_VISUAL_DIRECTCOLOR: fb_logo.needs_directpalette = 1; fb_logo.needs_cmapreset = 1; break; case FB_VISUAL_PSEUDOCOLOR: fb_logo.needs_cmapreset = 1; break; } } height = fb_logo.logo->height; if (fb_center_logo) height += (yres - fb_logo.logo->height) / 2;#ifdef CONFIG_FB_LOGO_EXTRA height = fb_prepare_extra_logos(info, height, yres);#endif return height;} int fb_show_logo(struct fb_info *info, int rotate){ unsigned int count; int y; if (!fb_logo_count) return 0; Lines 1–500 of 508. 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// SPDX-License-Identifier: GPL-2.0 #include <linux/fb.h> #include <linux/linux_logo.h> #include "fb_internal.h" bool fb_center_logo __read_mostly; int fb_logo_count __read_mostly = -1; static inline unsigned int safe_shift(unsigned int d, int n) { return n < 0 ? d >> -n : d << n; } static void fb_set_logocmap(struct fb_info *info, const struct linux_logo *logo) { struct fb_cmap palette_cmap; u16 palette_green[16]; u16 palette_blue[16]; u16 palette_red[16]; int i, j, n; const unsigned char *clut = logo->clut; palette_cmap.start = 0; palette_cmap.len = 16; palette_cmap.red = palette_red; palette_cmap.green = palette_green; palette_cmap.blue = palette_blue; palette_cmap.transp = NULL; for (i = 0; i < logo->clutsize; i += n) { n = logo->clutsize - i; /* palette_cmap provides space for only 16 colors at once */ if (n > 16) n = 16; palette_cmap.start = 32 + i; palette_cmap.len = n; for (j = 0; j < n; ++j) { palette_cmap.red[j] = clut[0] << 8 | clut[0]; palette_cmap.green[j] = clut[1] << 8 | clut[1]; palette_cmap.blue[j] = clut[2] << 8 | clut[2]; clut += 3; } fb_set_cmap(&palette_cmap, info); } } static void fb_set_logo_truepalette(struct fb_info *info, const struct linux_logo *logo, u32 *palette) { static const unsigned char mask[] = { 0, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; unsigned char redmask, greenmask, bluemask; int redshift, greenshift, blueshift; int i; const unsigned char *clut = logo->clut; /* * We have to create a temporary palette since console palette is only * 16 colors long. */ /* Bug: Doesn't obey msb_right ... (who needs that?) */ redmask = mask[info->var.red.length < 8 ? info->var.red.length : 8]; greenmask = mask[info->var.green.length < 8 ? info->var.green.length : 8]; bluemask = mask[info->var.blue.length < 8 ? info->var.blue.length : 8]; redshift = info->var.red.offset - (8 - info->var.red.length); greenshift = info->var.green.offset - (8 - info->var.green.length); blueshift = info->var.blue.offset - (8 - info->var.blue.length); for (i = 0; i < logo->clutsize; i++) { palette[i+32] = (safe_shift((clut[0] & redmask), redshift) | safe_shift((clut[1] & greenmask), greenshift) | safe_shift((clut[2] & bluemask), blueshift)); clut += 3; } } static void fb_set_logo_directpalette(struct fb_info *info, const struct linux_logo *logo, u32 *palette) { int redshift, greenshift, blueshift; int i; redshift = info->var.red.offset; greenshift = info->var.green.offset; blueshift = info->var.blue.offset; for (i = 32; i < 32 + logo->clutsize; i++) palette[i] = i << redshift | i << greenshift | i << blueshift; } static void fb_set_logo(struct fb_info *info, const struct linux_logo *logo, u8 *dst, int depth) { int i, j, k; const u8 *src = logo->data; u8 xor = (info->fix.visual == FB_VISUAL_MONO01) ? 0xff : 0; u8 fg = 1, d; switch (fb_get_color_depth(&info->var, &info->fix)) { case 1: fg = 1; break; case 2: fg = 3; break; default: fg = 7; break; } if (info->fix.visual == FB_VISUAL_MONO01 || info->fix.visual == FB_VISUAL_MONO10) fg = ~((u8) (0xfff << info->var.green.length)); switch (depth) { case 4: for (i = 0; i < logo->height; i++) for (j = 0; j < logo->width; src++) { *dst++ = *src >> 4; j++; if (j < logo->width) { *dst++ = *src & 0x0f; j++; } } break; case 1: for (i = 0; i < logo->height; i++) { for (j = 0; j < logo->width; src++) { d = *src ^ xor; for (k = 7; k >= 0 && j < logo->width; k--) { *dst++ = ((d >> k) & 1) ? fg : 0; j++; } } } break; } } /* * Three (3) kinds of logo maps exist. linux_logo_clut224 (>16 colors), * linux_logo_vga16 (16 colors) and linux_logo_mono (2 colors). Depending on * the visual format and color depth of the framebuffer, the DAC, the * pseudo_palette, and the logo data will be adjusted accordingly. * * Case 1 - linux_logo_clut224: * Color exceeds the number of console colors (16), thus we set the hardware DAC * using fb_set_cmap() appropriately. The "needs_cmapreset" flag will be set. * * For visuals that require color info from the pseudo_palette, we also construct * one for temporary use. The "needs_directpalette" or "needs_truepalette" flags * will be set. * * Case 2 - linux_logo_vga16: * The number of colors just matches the console colors, thus there is no need * to set the DAC or the pseudo_palette. However, the bitmap is packed, ie, * each byte contains color information for two pixels (upper and lower nibble). * To be consistent with fb_imageblit() usage, we therefore separate the two * nibbles into separate bytes. The "depth" flag will be set to 4. * * Case 3 - linux_logo_mono: * This is similar with Case 2. Each byte contains information for 8 pixels. * We isolate each bit and expand each into a byte. The "depth" flag will * be set to 1. */ static struct logo_data { int depth; int needs_directpalette; int needs_truepalette; int needs_cmapreset; const struct linux_logo *logo; } fb_logo __read_mostly; static void fb_rotate_logo_ud(const u8 *in, u8 *out, u32 width, u32 height) { u32 size = width * height, i; out += size - 1; for (i = size; i--; ) *out-- = *in++; } static void fb_rotate_logo_cw(const u8 *in, u8 *out, u32 width, u32 height) { int i, j, h = height - 1; for (i = 0; i < height; i++) for (j = 0; j < width; j++) out[height * j + h - i] = *in++; } static void fb_rotate_logo_ccw(const u8 *in, u8 *out, u32 width, u32 height) { int i, j, w = width - 1; for (i = 0; i < height; i++) for (j = 0; j < width; j++) out[height * (w - j) + i] = *in++; } static void fb_rotate_logo(struct fb_info *info, u8 *dst, struct fb_image *image, int rotate) { u32 tmp; if (rotate == FB_ROTATE_UD) { fb_rotate_logo_ud(image->data, dst, image->width, image->height); image->dx = info->var.xres - image->width - image->dx; image->dy = info->var.yres - image->height - image->dy; } else if (rotate == FB_ROTATE_CW) { fb_rotate_logo_cw(image->data, dst, image->width, image->height); swap(image->width, image->height); tmp = image->dy; image->dy = image->dx; image->dx = info->var.xres - image->width - tmp; } else if (rotate == FB_ROTATE_CCW) { fb_rotate_logo_ccw(image->data, dst, image->width, image->height); swap(image->width, image->height); tmp = image->dx; image->dx = image->dy; image->dy = info->var.yres - image->height - tmp; } image->data = dst; } static void fb_do_show_logo(struct fb_info *info, struct fb_image *image, int rotate, unsigned int num) { unsigned int x; if (image->width > info->var.xres || image->height > info->var.yres) return; if (rotate == FB_ROTATE_UR) { for (x = 0; x < num && image->dx + image->width <= info->var.xres; x++) { info->fbops->fb_imageblit(info, image); image->dx += image->width + 8; } } else if (rotate == FB_ROTATE_UD) { u32 dx = image->dx; for (x = 0; x < num && image->dx <= dx; x++) { info->fbops->fb_imageblit(info, image); image->dx -= image->width + 8; } } else if (rotate == FB_ROTATE_CW) { for (x = 0; x < num && image->dy + image->height <= info->var.yres; x++) { info->fbops->fb_imageblit(info, image); image->dy += image->height + 8; } } else if (rotate == FB_ROTATE_CCW) { u32 dy = image->dy; for (x = 0; x < num && image->dy <= dy; x++) { info->fbops->fb_imageblit(info, image); image->dy -= image->height + 8; } } } static int fb_show_logo_line(struct fb_info *info, int rotate, const struct linux_logo *logo, int y, unsigned int n) { u32 *palette = NULL, *saved_pseudo_palette = NULL; unsigned char *logo_new = NULL, *logo_rotate = NULL; struct fb_image image; /* Return if the frame buffer is not mapped or suspended */ if (logo == NULL || info->state != FBINFO_STATE_RUNNING || info->fbops->owner) return 0; image.depth = 8; image.data = logo->data; if (fb_logo.needs_cmapreset) fb_set_logocmap(info, logo); if (fb_logo.needs_truepalette || fb_logo.needs_directpalette) { palette = kmalloc(256 * 4, GFP_KERNEL); if (palette == NULL) return 0; if (fb_logo.needs_truepalette) fb_set_logo_truepalette(info, logo, palette); else fb_set_logo_directpalette(info, logo, palette); saved_pseudo_palette = info->pseudo_palette; info->pseudo_palette = palette; } if (fb_logo.depth <= 4) { logo_new = kmalloc_array(logo->width, logo->height, GFP_KERNEL); if (logo_new == NULL) { kfree(palette); if (saved_pseudo_palette) info->pseudo_palette = saved_pseudo_palette; return 0; } image.data = logo_new; fb_set_logo(info, logo, logo_new, fb_logo.depth); } if (fb_center_logo) { int xres = info->var.xres; int yres = info->var.yres; if (rotate == FB_ROTATE_CW || rotate == FB_ROTATE_CCW) { xres = info->var.yres; yres = info->var.xres; } while (n && (n * (logo->width + 8) - 8 > xres)) --n; image.dx = (xres - (n * (logo->width + 8) - 8)) / 2; image.dy = y ?: (yres - logo->height) / 2; } else { image.dx = 0; image.dy = y; } image.width = logo->width; image.height = logo->height; if (rotate) { logo_rotate = kmalloc_array(logo->width, logo->height, GFP_KERNEL); if (logo_rotate) fb_rotate_logo(info, logo_rotate, &image, rotate); } fb_do_show_logo(info, &image, rotate, n); kfree(palette); if (saved_pseudo_palette != NULL) info->pseudo_palette = saved_pseudo_palette; kfree(logo_new); kfree(logo_rotate); return image.dy + logo->height; } #ifdef CONFIG_FB_LOGO_EXTRA #define FB_LOGO_EX_NUM_MAX 10 static struct logo_data_extra { const struct linux_logo *logo; unsigned int n; } fb_logo_ex[FB_LOGO_EX_NUM_MAX]; static unsigned int fb_logo_ex_num; void fb_append_extra_logo(const struct linux_logo *logo, unsigned int n) { if (!n || fb_logo_ex_num == FB_LOGO_EX_NUM_MAX) return; fb_logo_ex[fb_logo_ex_num].logo = logo; fb_logo_ex[fb_logo_ex_num].n = n; fb_logo_ex_num++; } static int fb_prepare_extra_logos(struct fb_info *info, unsigned int height, unsigned int yres) { unsigned int i; /* FIXME: logo_ex supports only truecolor fb. */ if (info->fix.visual != FB_VISUAL_TRUECOLOR) fb_logo_ex_num = 0; for (i = 0; i < fb_logo_ex_num; i++) { if (fb_logo_ex[i].logo->type != fb_logo.logo->type) { fb_logo_ex[i].logo = NULL; continue; } height += fb_logo_ex[i].logo->height; if (height > yres) { height -= fb_logo_ex[i].logo->height; fb_logo_ex_num = i; break; } } return height; } static int fb_show_extra_logos(struct fb_info *info, int y, int rotate) { unsigned int i; for (i = 0; i < fb_logo_ex_num; i++) y = fb_show_logo_line(info, rotate, fb_logo_ex[i].logo, y, fb_logo_ex[i].n); return y; } #endif /* CONFIG_FB_LOGO_EXTRA */ int fb_prepare_logo(struct fb_info *info, int rotate) { int depth = fb_get_color_depth(&info->var, &info->fix); unsigned int yres; int height; memset(&fb_logo, 0, sizeof(struct logo_data)); if (info->flags & FBINFO_MISC_TILEBLITTING || info->fbops->owner || !fb_logo_count) return 0; if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) { depth = info->var.blue.length; if (info->var.red.length < depth) depth = info->var.red.length; if (info->var.green.length < depth) depth = info->var.green.length; } if (info->fix.visual == FB_VISUAL_STATIC_PSEUDOCOLOR && depth > 4) { /* assume console colormap */ depth = 4; } /* Return if no suitable logo was found */ fb_logo.logo = fb_find_logo(depth); if (!fb_logo.logo) return 0; if (rotate == FB_ROTATE_UR || rotate == FB_ROTATE_UD) yres = info->var.yres; else yres = info->var.xres; if (fb_logo.logo->height > yres) { fb_logo.logo = NULL; return 0; } /* What depth we asked for might be different from what we get */ if (fb_logo.logo->type == LINUX_LOGO_CLUT224) fb_logo.depth = 8; else if (fb_logo.logo->type == LINUX_LOGO_VGA16) fb_logo.depth = 4; else fb_logo.depth = 1; if (fb_logo.depth > 4 && depth > 4) { switch (info->fix.visual) { case FB_VISUAL_TRUECOLOR: fb_logo.needs_truepalette = 1; break; case FB_VISUAL_DIRECTCOLOR: fb_logo.needs_directpalette = 1; fb_logo.needs_cmapreset = 1; break; case FB_VISUAL_PSEUDOCOLOR: fb_logo.needs_cmapreset = 1; break; } } height = fb_logo.logo->height; if (fb_center_logo) height += (yres - fb_logo.logo->height) / 2; #ifdef CONFIG_FB_LOGO_EXTRA height = fb_prepare_extra_logos(info, height, yres); #endif return height; } int fb_show_logo(struct fb_info *info, int rotate) { unsigned int count; int y; if (!fb_logo_count) return 0;