From: Vladimir 'phcoder' Serbinenko Date: Fri, 3 Sep 2010 19:19:22 +0000 (+0200) Subject: Initial videoinfo implementation X-Git-Tag: 1.99~531^2~8 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=540e2fe18579c7c63945f7a416c1a4de37fa9628;p=thirdparty%2Fgrub.git Initial videoinfo implementation --- diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def index 353b9d123..cf497964d 100644 --- a/grub-core/Makefile.core.def +++ b/grub-core/Makefile.core.def @@ -676,6 +676,11 @@ module = { enable = i386_pc; }; +module = { + name = videoinfo; + common = commands/videoinfo.c; +}; + module = { name = vbetest; i386_pc = commands/i386/pc/vbetest.c; diff --git a/grub-core/commands/videoinfo.c b/grub-core/commands/videoinfo.c new file mode 100644 index 000000000..405c73774 --- /dev/null +++ b/grub-core/commands/videoinfo.c @@ -0,0 +1,101 @@ +/* videoinfo.c - command to list video modes. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2005,2007,2008,2009,2010 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include + +static int +hook (const struct grub_video_mode_info *info) +{ + grub_printf (" %4d x %4d x %2d ", info->height, info->width, info->bpp); + + /* Show mask and position details for direct color modes. */ + if (info->mode_type & GRUB_VIDEO_MODE_TYPE_RGB) + grub_printf ("D, mask: %d/%d/%d/%d pos: %d/%d/%d/%d", + info->red_mask_size, + info->green_mask_size, + info->blue_mask_size, + info->reserved_mask_size, + info->red_field_pos, + info->green_field_pos, + info->blue_field_pos, + info->reserved_field_pos); + if (info->mode_type & GRUB_VIDEO_MODE_TYPE_INDEX_COLOR) + grub_printf ("P"); + grub_printf ("\n"); + + return 0; +} + +static grub_err_t +grub_cmd_videoinfo (grub_command_t cmd __attribute__ ((unused)), + int argc __attribute__ ((unused)), + char **args __attribute__ ((unused))) +{ + grub_video_adapter_t adapter; + grub_video_driver_id_t id = grub_video_get_driver_id (); + + grub_printf ("List of supported video modes:\n"); + grub_printf ("Legend: P=Packed pixel, D=Direct color, " + "mask/pos=R/G/B/reserved\n"); + + FOR_VIDEO_ADAPTERS (adapter) + { + if (adapter->id != id) + { + if (adapter->init ()) + { + grub_errno = GRUB_ERR_NONE; + continue; + } + } + + grub_printf ("Adapter '%s':\n", adapter->name); + adapter->iterate (hook); + + if (adapter->id != id) + { + if (adapter->fini ()) + { + grub_errno = GRUB_ERR_NONE; + continue; + } + } + } + return GRUB_ERR_NONE; +} + +static grub_command_t cmd; + +GRUB_MOD_INIT(videoinfo) +{ + cmd = grub_register_command ("videoinfo", grub_cmd_videoinfo, 0, + N_("List available video modes.")); +} + +GRUB_MOD_FINI(videoinfo) +{ + grub_unregister_command (cmd); +} + diff --git a/grub-core/video/i386/pc/vbe.c b/grub-core/video/i386/pc/vbe.c index 3817b3f68..082c9bc84 100644 --- a/grub-core/video/i386/pc/vbe.c +++ b/grub-core/video/i386/pc/vbe.c @@ -33,7 +33,6 @@ static int vbe_detected = -1; static struct grub_vbe_info_block controller_info; -static struct grub_vbe_mode_info_block active_vbe_mode_info; /* Track last mode to support cards which fail on get_mode. */ static grub_uint32_t last_set_mode = 3; @@ -42,11 +41,7 @@ static struct { struct grub_video_mode_info mode_info; - unsigned int bytes_per_scan_line; - unsigned int bytes_per_pixel; - grub_uint32_t active_vbe_mode; grub_uint8_t *ptr; - int index_color_mode; } framebuffer; static grub_uint32_t initial_vbe_mode; @@ -332,21 +327,12 @@ grub_vbe_set_video_mode (grub_uint32_t vbe_mode, vbe_mode |= 1 << 14; /* Determine frame buffer pixel format. */ - switch (new_vbe_mode_info.memory_model) - { - case GRUB_VBE_MEMORY_MODEL_PACKED_PIXEL: - framebuffer.index_color_mode = 1; - break; - - case GRUB_VBE_MEMORY_MODEL_DIRECT_COLOR: - framebuffer.index_color_mode = 0; - break; - - default: - return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET, - "unsupported pixel format 0x%x", - new_vbe_mode_info.memory_model); - } + if (new_vbe_mode_info.memory_model != GRUB_VBE_MEMORY_MODEL_PACKED_PIXEL + && new_vbe_mode_info.memory_model + != GRUB_VBE_MEMORY_MODEL_DIRECT_COLOR) + return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET, + "unsupported pixel format 0x%x", + new_vbe_mode_info.memory_model); } /* Get current mode. */ @@ -360,24 +346,14 @@ grub_vbe_set_video_mode (grub_uint32_t vbe_mode, return grub_error (GRUB_ERR_BAD_DEVICE, "cannot set VBE mode %x", vbe_mode); last_set_mode = vbe_mode; - /* Save information for later usage. */ - framebuffer.active_vbe_mode = vbe_mode; - grub_memcpy (&active_vbe_mode_info, &new_vbe_mode_info, sizeof (active_vbe_mode_info)); - if (vbe_mode < 0x100) { /* If this is not a VESA mode, guess address. */ framebuffer.ptr = (grub_uint8_t *) GRUB_MEMORY_MACHINE_VGA_ADDR; - framebuffer.index_color_mode = 1; } else { framebuffer.ptr = (grub_uint8_t *) new_vbe_mode_info.phys_base_addr; - - if (controller_info.version >= 0x300) - framebuffer.bytes_per_scan_line = new_vbe_mode_info.lin_bytes_per_scan_line; - else - framebuffer.bytes_per_scan_line = new_vbe_mode_info.bytes_per_scan_line; } /* Check whether mode is text mode or graphics mode. */ @@ -392,25 +368,9 @@ grub_vbe_set_video_mode (grub_uint32_t vbe_mode, { /* Graphics mode. */ - /* Calculate bytes_per_pixel value. */ - switch(new_vbe_mode_info.bits_per_pixel) - { - case 32: framebuffer.bytes_per_pixel = 4; break; - case 24: framebuffer.bytes_per_pixel = 3; break; - case 16: framebuffer.bytes_per_pixel = 2; break; - case 15: framebuffer.bytes_per_pixel = 2; break; - case 8: framebuffer.bytes_per_pixel = 1; break; - default: - grub_vbe_bios_set_mode (old_vbe_mode, 0); - last_set_mode = old_vbe_mode; - return grub_error (GRUB_ERR_BAD_DEVICE, - "cannot set VBE mode %x", - vbe_mode); - break; - } - /* If video mode is in indexed color, setup default VGA palette. */ - if (framebuffer.index_color_mode) + if (vbe_mode < 0x100 || new_vbe_mode_info.memory_model + == GRUB_VBE_MEMORY_MODEL_PACKED_PIXEL) { struct grub_vbe_palette_data *palette = (struct grub_vbe_palette_data *) GRUB_MEMORY_MACHINE_SCRATCH_ADDR; @@ -548,10 +508,13 @@ grub_video_vbe_fini (void) grub_err_t err; /* Restore old video mode. */ - status = grub_vbe_bios_set_mode (initial_vbe_mode, 0); - if (status != GRUB_VBE_STATUS_OK) - /* TODO: Decide, is this something we want to do. */ - return grub_errno; + if (last_set_mode != initial_vbe_mode) + { + status = grub_vbe_bios_set_mode (initial_vbe_mode, 0); + if (status != GRUB_VBE_STATUS_OK) + /* TODO: Decide, is this something we want to do. */ + return grub_errno; + } last_set_mode = initial_vbe_mode; /* TODO: Free any resources allocated by driver. */ @@ -583,6 +546,86 @@ doublebuf_pageflipping_set_page (int page) return 0; } +static void +vbe2videoinfo (const struct grub_vbe_mode_info_block *vbeinfo, + struct grub_video_mode_info *mode_info) +{ + mode_info->width = vbeinfo->x_resolution; + mode_info->height = vbeinfo->y_resolution; + switch (vbeinfo->memory_model) + { + case GRUB_VBE_MEMORY_MODEL_PACKED_PIXEL: + mode_info->mode_type = GRUB_VIDEO_MODE_TYPE_INDEX_COLOR; + break; + + case GRUB_VBE_MEMORY_MODEL_DIRECT_COLOR: + mode_info->mode_type = GRUB_VIDEO_MODE_TYPE_RGB; + break; + } + + mode_info->bpp = vbeinfo->bits_per_pixel; + /* Calculate bytes_per_pixel value. */ + switch(vbeinfo->bits_per_pixel) + { + case 32: + mode_info->bytes_per_pixel = 4; + break; + case 24: + mode_info->bytes_per_pixel = 3; + break; + case 16: + mode_info->bytes_per_pixel = 2; + break; + case 15: + mode_info->bytes_per_pixel = 2; + break; + case 8: + mode_info->bytes_per_pixel = 1; + break; + } + + if (controller_info.version >= 0x300) + mode_info->pitch = vbeinfo->lin_bytes_per_scan_line; + else + mode_info->pitch = vbeinfo->bytes_per_scan_line; + + mode_info->number_of_colors = 256; /* TODO: fix me. */ + mode_info->red_mask_size = vbeinfo->red_mask_size; + mode_info->red_field_pos = vbeinfo->red_field_position; + mode_info->green_mask_size = vbeinfo->green_mask_size; + mode_info->green_field_pos = vbeinfo->green_field_position; + mode_info->blue_mask_size = vbeinfo->blue_mask_size; + mode_info->blue_field_pos = vbeinfo->blue_field_position; + mode_info->reserved_mask_size = vbeinfo->rsvd_mask_size; + mode_info->reserved_field_pos = vbeinfo->rsvd_field_position; + + mode_info->blit_format = grub_video_get_blit_format (mode_info); +} + +static int +grub_video_vbe_iterate (int (*hook) (const struct grub_video_mode_info *info)) +{ + grub_uint16_t *p; + struct grub_vbe_mode_info_block vbe_mode_info; + struct grub_video_mode_info mode_info; + + for (p = vbe_mode_list; *p != 0xFFFF; p++) + { + grub_vbe_get_video_mode_info (*p, &vbe_mode_info); + if (grub_errno != GRUB_ERR_NONE) + { + /* Could not retrieve mode info, retreat. */ + grub_errno = GRUB_ERR_NONE; + break; + } + + vbe2videoinfo (&vbe_mode_info, &mode_info); + if (hook (&mode_info)) + return 1; + } + return 0; +} + static grub_err_t grub_video_vbe_setup (unsigned int width, unsigned int height, unsigned int mode_type, unsigned int mode_mask) @@ -631,6 +674,14 @@ grub_video_vbe_setup (unsigned int width, unsigned int height, /* Not compatible memory model. */ continue; + if (vbe_mode_info.bits_per_pixel != 8 + && vbe_mode_info.bits_per_pixel != 15 + && vbe_mode_info.bits_per_pixel != 16 + && vbe_mode_info.bits_per_pixel != 24 + && vbe_mode_info.bits_per_pixel != 32) + /* Unsupported bitdepth . */ + continue; + if (((vbe_mode_info.x_resolution != width) || (vbe_mode_info.y_resolution != height)) && width != 0 && height != 0) /* Non matching resolution. */ @@ -676,36 +727,15 @@ grub_video_vbe_setup (unsigned int width, unsigned int height, if (best_vbe_mode != 0) { grub_err_t err; + static struct grub_vbe_mode_info_block active_vbe_mode_info; /* If this fails, then we have mode selection heuristics problem, or adapter failure. */ - /* grub_vbe_set_video_mode already sets active_vbe_mode_info. */ - grub_vbe_set_video_mode (best_vbe_mode, NULL); + grub_vbe_set_video_mode (best_vbe_mode, &active_vbe_mode_info); if (grub_errno != GRUB_ERR_NONE) return grub_errno; /* Fill mode info details. */ - framebuffer.mode_info.width = active_vbe_mode_info.x_resolution; - framebuffer.mode_info.height = active_vbe_mode_info.y_resolution; - - if (framebuffer.index_color_mode) - framebuffer.mode_info.mode_type = GRUB_VIDEO_MODE_TYPE_INDEX_COLOR; - else - framebuffer.mode_info.mode_type = GRUB_VIDEO_MODE_TYPE_RGB; - - framebuffer.mode_info.bpp = active_vbe_mode_info.bits_per_pixel; - framebuffer.mode_info.bytes_per_pixel = framebuffer.bytes_per_pixel; - framebuffer.mode_info.pitch = framebuffer.bytes_per_scan_line; - framebuffer.mode_info.number_of_colors = 256; /* TODO: fix me. */ - framebuffer.mode_info.red_mask_size = active_vbe_mode_info.red_mask_size; - framebuffer.mode_info.red_field_pos = active_vbe_mode_info.red_field_position; - framebuffer.mode_info.green_mask_size = active_vbe_mode_info.green_mask_size; - framebuffer.mode_info.green_field_pos = active_vbe_mode_info.green_field_position; - framebuffer.mode_info.blue_mask_size = active_vbe_mode_info.blue_mask_size; - framebuffer.mode_info.blue_field_pos = active_vbe_mode_info.blue_field_position; - framebuffer.mode_info.reserved_mask_size = active_vbe_mode_info.rsvd_mask_size; - framebuffer.mode_info.reserved_field_pos = active_vbe_mode_info.rsvd_field_position; - - framebuffer.mode_info.blit_format = grub_video_get_blit_format (&framebuffer.mode_info); + vbe2videoinfo (&active_vbe_mode_info, &framebuffer.mode_info); { /* Get video RAM size in bytes. */ @@ -740,7 +770,7 @@ static grub_err_t grub_video_vbe_set_palette (unsigned int start, unsigned int count, struct grub_video_palette_data *palette_data) { - if (framebuffer.index_color_mode) + if (framebuffer.mode_info.mode_type == GRUB_VIDEO_MODE_TYPE_INDEX_COLOR) { /* TODO: Implement setting indexed color mode palette to hardware. */ //status = grub_vbe_bios_set_palette_data (sizeof (vga_colors) @@ -793,6 +823,7 @@ static struct grub_video_adapter grub_video_vbe_adapter = .delete_render_target = grub_video_fb_delete_render_target, .set_active_render_target = grub_video_fb_set_active_render_target, .get_active_render_target = grub_video_fb_get_active_render_target, + .iterate = grub_video_vbe_iterate, .next = 0 }; diff --git a/include/grub/video.h b/include/grub/video.h index 24167281f..d530ab415 100644 --- a/include/grub/video.h +++ b/include/grub/video.h @@ -282,6 +282,8 @@ struct grub_video_adapter grub_err_t (*set_active_render_target) (struct grub_video_render_target *target); grub_err_t (*get_active_render_target) (struct grub_video_render_target **target); + + int (*iterate) (int (*hook) (const struct grub_video_mode_info *info)); }; typedef struct grub_video_adapter *grub_video_adapter_t;