mirror of
https://gitlab.com/bztsrc/posix-uefi.git
synced 2025-01-01 03:25:52 +01:00
85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
#include <uefi.h>
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/* Scalable Screen Font (https://gitlab.com/bztsrc/scalable-font2) */
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#define SSFN_IMPLEMENTATION /* get the normal renderer implementation */
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#define SSFN_MAXLINES 4096 /* configure for static memory management */
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#include "ssfn.h"
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ssfn_buf_t dst = {0}; /* framebuffer properties */
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ssfn_t ctx = {0}; /* renderer context */
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/**
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* Display string using the SSFN library. This works with both bitmap and vector fonts
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*/
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void printString(int x, int y, char *s)
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{
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int ret;
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dst.x = x; dst.y = y;
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while((ret = ssfn_render(&ctx, &dst, s)) > 0)
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s += ret;
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}
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/**
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* Display vector fonts
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*/
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int main(int argc, char **argv)
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{
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efi_status_t status;
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efi_guid_t gopGuid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID;
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efi_gop_t *gop = NULL;
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efi_gop_mode_info_t *info = NULL;
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uintn_t isiz = sizeof(efi_gop_mode_info_t);
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FILE *f;
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ssfn_font_t *font;
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long int size;
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/* load font */
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if((f = fopen("\\0B_vecfont\\font.sfn", "r"))) {
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fseek(f, 0, SEEK_END);
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size = ftell(f);
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fseek(f, 0, SEEK_SET);
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font = (ssfn_font_t*)malloc(size + 1);
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if(!font) {
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fprintf(stderr, "unable to allocate memory\n");
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return 1;
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}
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fread(font, size, 1, f);
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fclose(f);
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ssfn_load(&ctx, font);
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} else {
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fprintf(stderr, "Unable to load font\n");
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return 0;
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}
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/* set video mode */
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status = BS->LocateProtocol(&gopGuid, NULL, (void**)&gop);
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if(!EFI_ERROR(status) && gop) {
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status = gop->SetMode(gop, 0);
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ST->ConOut->Reset(ST->ConOut, 0);
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ST->StdErr->Reset(ST->StdErr, 0);
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if(EFI_ERROR(status)) {
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fprintf(stderr, "unable to set video mode\n");
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return 0;
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}
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/* set up destination buffer */
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dst.ptr = (unsigned char*)gop->Mode->FrameBufferBase;
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dst.w = gop->Mode->Information->HorizontalResolution;
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dst.h = gop->Mode->Information->VerticalResolution;
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dst.p = sizeof(unsigned int) * gop->Mode->Information->PixelsPerScanLine;
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dst.fg = 0xFFFFFFFF;
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} else {
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fprintf(stderr, "unable to get graphics output protocol\n");
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return 0;
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}
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/* select typeface to use */
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ssfn_select(&ctx, SSFN_FAMILY_ANY, NULL, SSFN_STYLE_REGULAR | SSFN_STYLE_NOCACHE, 40);
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/* display multilingual text */
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printString(10, ctx.size, "Hello! Здравствуйте! Καλως ηρθες!");
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/* free resources exit */
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ssfn_free(&ctx);
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free(font);
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return 0;
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}
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