mirror of
https://github.com/opentx/opentx.git
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0a6cbe92b6
[X9D] Main view continued [Sky9x] Sounds selection again OK (thanks Scott for the report)
180 lines
6.5 KiB
C++
180 lines
6.5 KiB
C++
/*
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* Authors (alphabetical order)
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* - Bertrand Songis <bsongis@gmail.com>
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* - Bryan J. Rentoul (Gruvin) <gruvin@gmail.com>
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* - Cameron Weeks <th9xer@gmail.com>
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* - Erez Raviv
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* - Jean-Pierre Parisy
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* - Karl Szmutny <shadow@privy.de>
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* - Michael Blandford
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* - Michal Hlavinka
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* - Pat Mackenzie
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* - Philip Moss
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* - Rob Thomson
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* - Romolo Manfredini <romolo.manfredini@gmail.com>
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* - Thomas Husterer
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*
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* open9x is based on code named
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* gruvin9x by Bryan J. Rentoul: http://code.google.com/p/gruvin9x/,
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* er9x by Erez Raviv: http://code.google.com/p/er9x/,
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* and the original (and ongoing) project by
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* Thomas Husterer, th9x: http://code.google.com/p/th9x/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include "open9x.h"
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const pm_char * bmpLoad(uint8_t *dest, const char *filename)
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{
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FIL bmpFile;
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UINT read;
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uint8_t bmpBuf[64]; /* maximum with 64px for 1-bit bitmaps */
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uint8_t *buf = &bmpBuf[0];
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FRESULT result = f_open(&bmpFile, filename, FA_OPEN_EXISTING | FA_READ);
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if (result != FR_OK) {
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return SDCARD_ERROR(result);
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}
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if (f_size(&bmpFile) < 14) {
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f_close(&bmpFile);
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return STR_INCOMPATIBLE;
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}
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result = f_read(&bmpFile, buf, 14, &read);
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if (result != FR_OK || read != 14) {
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f_close(&bmpFile);
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return SDCARD_ERROR(result);
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}
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if (buf[0] != 'B' || buf[1] != 'M') {
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f_close(&bmpFile);
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return STR_INCOMPATIBLE;
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}
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uint32_t fsize = *((uint32_t *)&buf[2]);
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uint32_t hsize = *((uint32_t *)&buf[10]); /* header size */
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uint32_t len = limit((uint32_t)0, (uint32_t)(hsize-14), (uint32_t)32);
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result = f_read(&bmpFile, buf, len, &read);
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if (result != FR_OK || read != len) {
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f_close(&bmpFile);
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return SDCARD_ERROR(result);
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}
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uint32_t ihsize = *((uint32_t *)&buf[0]); /* more header size */
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/* invalid header size */
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if (ihsize + 14 > hsize) {
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f_close(&bmpFile);
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return STR_INCOMPATIBLE;
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}
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/* sometimes file size is set to some headers size, set a real size in that case */
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if (fsize == 14 || fsize == ihsize + 14)
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fsize = f_size(&bmpFile) - 2;
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/* declared file size less than header size */
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if (fsize <= hsize) {
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f_close(&bmpFile);
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return STR_INCOMPATIBLE;
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}
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uint32_t width, height;
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switch (ihsize){
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case 40: // windib
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case 56: // windib v3
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case 64: // OS/2 v2
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case 108: // windib v4
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case 124: // windib v5
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width = *((uint32_t *)&buf[4]);
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height = *((uint32_t *)&buf[8]);
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buf += 12;
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break;
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case 12: // OS/2 v1
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width = *((uint16_t *)&buf[4]);
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height = *((uint16_t *)&buf[6]);
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buf += 8;
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break;
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default:
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f_close(&bmpFile);
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return STR_INCOMPATIBLE;
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}
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if (*((uint16_t *)&buf[0]) != 1) { /* planes */
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f_close(&bmpFile);
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return STR_INCOMPATIBLE;
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}
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if (width > 64 || height > 32) {
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f_close(&bmpFile);
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return STR_INCOMPATIBLE;
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}
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uint16_t depth = *((uint16_t *)&buf[2]);
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if (f_lseek(&bmpFile, hsize) != FR_OK) {
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f_close(&bmpFile);
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return SDCARD_ERROR(result);
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}
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*dest++ = width;
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*dest++ = height;
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uint32_t n;
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buf = &bmpBuf[0];
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switch (depth) {
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case 1:
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n = width/8;
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for (uint32_t i=0; i<height; i+=8) {
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result = f_read(&bmpFile, buf, n*8, &read);
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if (result != FR_OK || read != n*8) {
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f_close(&bmpFile);
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return SDCARD_ERROR(result);
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}
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uint8_t * dst = dest + ((height-i-8)/8 * width);
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for (uint32_t j=0; j<n; j++) {
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*dst++ = ~(((buf[j+0*n] >> 7) << 7) + ((buf[j+1*n] >> 7) << 6) + ((buf[j+2*n] >> 7) << 5) + ((buf[j+3*n] >> 7) << 4) + ((buf[j+4*n] >> 7) << 3) + ((buf[j+5*n] >> 7) << 2) + ((buf[j+6*n] >> 7) << 1) + ((buf[j+7*n] >> 7) << 0));
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*dst++ = ~((((buf[j+0*n] >> 6) & 1) << 7) + (((buf[j+1*n] >> 6) & 1) << 6) + (((buf[j+2*n] >> 6) & 1) << 5) + (((buf[j+3*n] >> 6) & 1) << 4) + (((buf[j+4*n] >> 6) & 1) << 3) + (((buf[j+5*n] >> 6) & 1) << 2) + (((buf[j+6*n] >> 6) & 1) << 1) + (((buf[j+7*n] >> 6) & 1) << 0));
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*dst++ = ~((((buf[j+0*n] >> 5) & 1) << 7) + (((buf[j+1*n] >> 5) & 1) << 6) + (((buf[j+2*n] >> 5) & 1) << 5) + (((buf[j+3*n] >> 5) & 1) << 4) + (((buf[j+4*n] >> 5) & 1) << 3) + (((buf[j+5*n] >> 5) & 1) << 2) + (((buf[j+6*n] >> 5) & 1) << 1) + (((buf[j+7*n] >> 5) & 1) << 0));
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*dst++ = ~((((buf[j+0*n] >> 4) & 1) << 7) + (((buf[j+1*n] >> 4) & 1) << 6) + (((buf[j+2*n] >> 4) & 1) << 5) + (((buf[j+3*n] >> 4) & 1) << 4) + (((buf[j+4*n] >> 4) & 1) << 3) + (((buf[j+5*n] >> 4) & 1) << 2) + (((buf[j+6*n] >> 4) & 1) << 1) + (((buf[j+7*n] >> 4) & 1) << 0));
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*dst++ = ~((((buf[j+0*n] >> 3) & 1) << 7) + (((buf[j+1*n] >> 3) & 1) << 6) + (((buf[j+2*n] >> 3) & 1) << 5) + (((buf[j+3*n] >> 3) & 1) << 4) + (((buf[j+4*n] >> 3) & 1) << 3) + (((buf[j+5*n] >> 3) & 1) << 2) + (((buf[j+6*n] >> 3) & 1) << 1) + (((buf[j+7*n] >> 3) & 1) << 0));
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*dst++ = ~((((buf[j+0*n] >> 2) & 1) << 7) + (((buf[j+1*n] >> 2) & 1) << 6) + (((buf[j+2*n] >> 2) & 1) << 5) + (((buf[j+3*n] >> 2) & 1) << 4) + (((buf[j+4*n] >> 2) & 1) << 3) + (((buf[j+5*n] >> 2) & 1) << 2) + (((buf[j+6*n] >> 2) & 1) << 1) + (((buf[j+7*n] >> 2) & 1) << 0));
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*dst++ = ~((((buf[j+0*n] >> 1) & 1) << 7) + (((buf[j+1*n] >> 1) & 1) << 6) + (((buf[j+2*n] >> 1) & 1) << 5) + (((buf[j+3*n] >> 1) & 1) << 4) + (((buf[j+4*n] >> 1) & 1) << 3) + (((buf[j+5*n] >> 1) & 1) << 2) + (((buf[j+6*n] >> 1) & 1) << 1) + (((buf[j+7*n] >> 1) & 1) << 0));
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*dst++ = ~((((buf[j+0*n] >> 0) & 1) << 7) + (((buf[j+1*n] >> 0) & 1) << 6) + (((buf[j+2*n] >> 0) & 1) << 5) + (((buf[j+3*n] >> 0) & 1) << 4) + (((buf[j+4*n] >> 0) & 1) << 3) + (((buf[j+5*n] >> 0) & 1) << 2) + (((buf[j+6*n] >> 0) & 1) << 1) + (((buf[j+7*n] >> 0) & 1) << 0));
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}
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}
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break;
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/* case 4:
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for (uint32_t i=0; i<height; i++) {
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int j;
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for (j = 0; j < n; j++){
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ptr[j*2+0] = (buf[j] >> 4) & 0xF;
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ptr[j*2+1] = buf[j] & 0xF;
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}
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buf += n;
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ptr += linesize;
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}
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break;
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*/
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default:
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f_close(&bmpFile);
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return STR_INCOMPATIBLE;
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}
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f_close(&bmpFile);
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return 0;
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}
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