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/*
* Copyright (c) 2009-2015 Intel Corporation. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include "asciiluma.h"
#define MAX_TEXT_NUM 1024
#define min(a,b) (a>b?b:a)
int char2luma(char c, int *width, int *height, int *stride, char **p)
{
int row = (c-0x20) / 16;
int col = (c-0x20) % 16;
int bitmap_offset = row * (16*100*100) + col * 100;
*p = &ascii_0x20_0x7f_luma_100x100[0] + bitmap_offset;
*width = 100;
*height = 100;
*stride = 1600;
printf("Character %c (item = %d) in (%d,%d), offset=%d\n",
c, c - 0x20, row, col, bitmap_offset);
return 0;
}
static int scale_2dimage(unsigned char *src_img, int src_imgw, int src_imgh,
unsigned char *dst_img, int dst_imgw, int dst_imgh)
{
int row=0, col=0;
for (row=0; row<dst_imgh; row++) {
for (col=0; col<dst_imgw; col++) {
*(dst_img + row * dst_imgw + col) = *(src_img + (row * src_imgh/dst_imgh) * src_imgw + col * src_imgw/dst_imgw);
}
}
return 0;
}
static int help(char *exe)
{
printf("Usage: %s -s <text> -w width -h height -f <YV12 file name>\n", exe);
printf("Convert text to YV12 file with widthxheight resolution\n");
return 0;
}
int main(int argc, char *argv[])
{
int i,j, c, width=0, height=0, stride, yuv_width=0, yuv_height=0, text_num, uv_size;
char *yuv_file = NULL, *char_luma[MAX_TEXT_NUM], uv_value;
char *text_str = NULL;
FILE *fp;
while ((c =getopt(argc,argv,"w:h:s:f:?")) != EOF) {
switch (c) {
case 'w':
yuv_width = atoi(optarg);
break;
case 'h':
yuv_height = atoi(optarg);
break;
case 's':
text_str = strdup(optarg);
break;
case 'f':
yuv_file = strdup(optarg);
break;
default:
help(argv[0]);
exit(0);
}
}
if (text_str == NULL || yuv_file == NULL) {
help(argv[0]);
exit(0);
}
fp = fopen(yuv_file, "w+");
if (fp == NULL) {
perror("Open file failed\n");
exit(-1);
}
text_num = strlen(text_str);
text_num = min(text_num, MAX_TEXT_NUM);
for (i=0; i<text_num; i++) {
char2luma(text_str[i], &width, &height, &stride, &char_luma[i]);
}
if (yuv_width == 0) yuv_width = width;
if (yuv_height == 0) yuv_height = height;
printf("Convert text %s to YV12 (%dx%d) and save to %s\n", text_str, yuv_width*text_num, yuv_height, yuv_file);
/*
printf("Get luma bitmap %dx%d, stride=%d, offset=%d\n", width, height, stride,
char_luma - ascii_0x20_0x7f_luma_100x100);
*/
for (i=0; i<height; i++) {
for (j=0; j<text_num; j++) {
int ret = fwrite(char_luma[j], width, 1, fp);
if (ret < 1) {
perror("Write less bytes than expected %d\n");
exit(-1);
}
char_luma[j] += stride;
}
}
/* append UV data */
uv_size = text_num * (width * height/2);
uv_value = 0x80;
for (i=0; i<uv_size; i++)
fwrite(&uv_value, 1, 1, fp);
printf("Converted to YV12!\n\n");
return 0;
}
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