diff options
Diffstat (limited to 'glyphtest/compare-new-to-old.c')
-rw-r--r-- | glyphtest/compare-new-to-old.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/glyphtest/compare-new-to-old.c b/glyphtest/compare-new-to-old.c new file mode 100644 index 000000000..52942a7f4 --- /dev/null +++ b/glyphtest/compare-new-to-old.c @@ -0,0 +1,103 @@ +#include "bitmap.h" + +int main(int argc, char const * argv[]) +{ + FT_Library library; + FT_Face face; + FT_GlyphSlot slot; + FT_Bitmap * bitmap; + FT_UInt32 size; + + const char * filename; + + int i, j; + + char mmhash[40]; + unsigned int lines; + int line_len = 40; + char ** hashes; + char fname[20]; + + FILE * fp = fopen("old-hashes.txt", "r"); + + filename = argv[1]; + size = atoi(argv[2]); + + if (FT_Init_FreeType(&library)) + { + printf("Error: library init.\n"); + } + + if (FT_New_Face(library, filename, 0, &face)) + { + printf("Error: loading face.\n"); + } + + lines = face->num_glyphs; + hashes = (char **)malloc(sizeof(char*)*lines); + + for (i = 0; i < lines; i++) + { + hashes[i] = malloc(line_len); + if (hashes[i]==NULL) + { + fprintf(stderr,"Out of memory (3).\n"); + exit(4); + } + if (fgets(hashes[i],line_len-1,fp)==NULL) + break; + + /* Get rid of CR or LF at end of line */ + for (j=strlen(hashes[i])-1;j>=0 && (hashes[i][j]=='\n' || hashes[i][j]=='\r');j--) + ; + hashes[i][j+1]='\0'; + } + fclose(fp); + + if (FT_Set_Char_Size(face, size * 64, 0, 96, 0)) + { + printf("Error: setting char size.\n"); + } + + slot = face->glyph; + + for (i = 0; i < face->num_glyphs; ++i) + { + if (FT_Load_Glyph(face, i, FT_LOAD_DEFAULT)) + { + printf("Error: loading glyph.\n"); + } + + if (FT_Render_Glyph(slot, FT_RENDER_MODE_NORMAL)) + { + printf("Error: rendering glyph.\n"); + } + + bitmap = &slot->bitmap; + + HASH_128 * murmur = (HASH_128 *)malloc(sizeof(HASH_128)); + murmur = Generate_Hash_x64_128(bitmap,murmur); + + sprintf(mmhash, "%08x%08x%08x%08x", murmur->hash[0], murmur->hash[1], murmur->hash[2], murmur->hash[3]); + + printf("%s\n", hashes[i]); + printf("%s\n", mmhash); + if (strcmp(mmhash, hashes[i]) == 0) + { + if (bitmap->width != 0 && bitmap->rows !=0) + { + printf("Glyph %d differs.\n", i); + sprintf(fname, "%d-new.bmp", i); + Write_Bitmap_Header(bitmap, fname); + Write_Bitmap_Data_GRAY(bitmap, fname); + } + } + + } + + FT_Done_Face(face); + FT_Done_FreeType(library); + + return 0; + +}
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