767 lines
17 KiB
C++
767 lines
17 KiB
C++
// VisualBoyAdvance - Nintendo Gameboy/GameboyAdvance (TM) emulator.
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// Copyright (C) 1999-2003 Forgotten
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// Copyright (C) 2004-2006 Forgotten and the VBA development team
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// Copyright (C) 2007-2008 VBA-M development team and Shay Green
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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 as published by
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// the Free Software Foundation; either version 2, or(at your option)
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// any later version.
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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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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software Foundation,
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// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <zlib.h>
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#ifndef NO_PNG
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extern "C" {
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#include <png.h>
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}
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#endif
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#include "System.h"
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#include "NLS.h"
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#include "Util.h"
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#include "Flash.h"
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#include "agb/GBA.h"
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#include "Globals.h"
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#include "RTC.h"
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#include "Port.h"
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#include "fex.h"
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extern "C" {
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#include "memgzio.h"
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}
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#ifndef _MSC_VER
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#define _stricmp strcasecmp
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#endif // ! _MSC_VER
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extern int systemColorDepth;
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extern int systemRedShift;
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extern int systemGreenShift;
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extern int systemBlueShift;
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extern u16 systemColorMap16[0x10000];
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extern u32 systemColorMap32[0x10000];
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static int (ZEXPORT *utilGzWriteFunc)(gzFile, const voidp, unsigned int) = NULL;
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static int (ZEXPORT *utilGzReadFunc)(gzFile, voidp, unsigned int) = NULL;
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static int (ZEXPORT *utilGzCloseFunc)(gzFile) = NULL;
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static z_off_t (ZEXPORT *utilGzSeekFunc)(gzFile, z_off_t, int) = NULL;
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bool utilWritePNGFile(const char *fileName, int w, int h, u8 *pix)
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{
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#ifndef NO_PNG
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u8 writeBuffer[512 * 3];
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FILE *fp = fopen(fileName,"wb");
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if(!fp) {
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systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), fileName);
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return false;
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}
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png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
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NULL,
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NULL,
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NULL);
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if(!png_ptr) {
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fclose(fp);
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return false;
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}
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png_infop info_ptr = png_create_info_struct(png_ptr);
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if(!info_ptr) {
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png_destroy_write_struct(&png_ptr,NULL);
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fclose(fp);
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return false;
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}
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if(setjmp(png_ptr->jmpbuf)) {
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png_destroy_write_struct(&png_ptr,NULL);
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fclose(fp);
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return false;
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}
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png_init_io(png_ptr,fp);
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png_set_IHDR(png_ptr,
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info_ptr,
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w,
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h,
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8,
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PNG_COLOR_TYPE_RGB,
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PNG_INTERLACE_NONE,
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PNG_COMPRESSION_TYPE_DEFAULT,
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PNG_FILTER_TYPE_DEFAULT);
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png_write_info(png_ptr,info_ptr);
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u8 *b = writeBuffer;
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int sizeX = w;
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int sizeY = h;
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switch(systemColorDepth) {
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case 16:
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{
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u16 *p = (u16 *)(pix+(w+2)*2); // skip first black line
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for(int y = 0; y < sizeY; y++) {
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for(int x = 0; x < sizeX; x++) {
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u16 v = *p++;
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*b++ = ((v >> systemRedShift) & 0x001f) << 3; // R
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*b++ = ((v >> systemGreenShift) & 0x001f) << 3; // G
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*b++ = ((v >> systemBlueShift) & 0x01f) << 3; // B
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}
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p++; // skip black pixel for filters
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p++; // skip black pixel for filters
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png_write_row(png_ptr,writeBuffer);
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b = writeBuffer;
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}
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}
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break;
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case 24:
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{
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u8 *pixU8 = (u8 *)pix;
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for(int y = 0; y < sizeY; y++) {
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for(int x = 0; x < sizeX; x++) {
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if(systemRedShift < systemBlueShift) {
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*b++ = *pixU8++; // R
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*b++ = *pixU8++; // G
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*b++ = *pixU8++; // B
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} else {
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int blue = *pixU8++;
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int green = *pixU8++;
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int red = *pixU8++;
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*b++ = red;
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*b++ = green;
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*b++ = blue;
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}
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}
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png_write_row(png_ptr,writeBuffer);
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b = writeBuffer;
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}
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}
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break;
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case 32:
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{
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u32 *pixU32 = (u32 *)(pix+4*(w+1));
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for(int y = 0; y < sizeY; y++) {
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for(int x = 0; x < sizeX; x++) {
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u32 v = *pixU32++;
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*b++ = ((v >> systemRedShift) & 0x001f) << 3; // R
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*b++ = ((v >> systemGreenShift) & 0x001f) << 3; // G
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*b++ = ((v >> systemBlueShift) & 0x001f) << 3; // B
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}
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pixU32++;
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png_write_row(png_ptr,writeBuffer);
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b = writeBuffer;
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}
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}
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break;
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}
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png_write_end(png_ptr, info_ptr);
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png_destroy_write_struct(&png_ptr, &info_ptr);
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fclose(fp);
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return true;
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#else
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return false;
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#endif
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}
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void utilPutDword(u8 *p, u32 value)
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{
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*p++ = value & 255;
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*p++ = (value >> 8) & 255;
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*p++ = (value >> 16) & 255;
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*p = (value >> 24) & 255;
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}
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void utilPutWord(u8 *p, u16 value)
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{
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*p++ = value & 255;
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*p = (value >> 8) & 255;
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}
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bool utilWriteBMPFile(const char *fileName, int w, int h, u8 *pix)
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{
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u8 writeBuffer[512 * 3];
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FILE *fp = fopen(fileName,"wb");
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if(!fp) {
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systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), fileName);
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return false;
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}
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struct {
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u8 ident[2];
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u8 filesize[4];
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u8 reserved[4];
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u8 dataoffset[4];
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u8 headersize[4];
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u8 width[4];
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u8 height[4];
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u8 planes[2];
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u8 bitsperpixel[2];
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u8 compression[4];
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u8 datasize[4];
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u8 hres[4];
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u8 vres[4];
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u8 colors[4];
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u8 importantcolors[4];
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// u8 pad[2];
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} bmpheader;
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memset(&bmpheader, 0, sizeof(bmpheader));
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bmpheader.ident[0] = 'B';
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bmpheader.ident[1] = 'M';
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u32 fsz = sizeof(bmpheader) + w*h*3;
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utilPutDword(bmpheader.filesize, fsz);
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utilPutDword(bmpheader.dataoffset, 0x36);
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utilPutDword(bmpheader.headersize, 0x28);
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utilPutDword(bmpheader.width, w);
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utilPutDword(bmpheader.height, h);
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utilPutDword(bmpheader.planes, 1);
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utilPutDword(bmpheader.bitsperpixel, 24);
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utilPutDword(bmpheader.datasize, 3*w*h);
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fwrite(&bmpheader, 1, sizeof(bmpheader), fp);
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u8 *b = writeBuffer;
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int sizeX = w;
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int sizeY = h;
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switch(systemColorDepth) {
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case 16:
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{
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u16 *p = (u16 *)(pix+(w+2)*(h)*2); // skip first black line
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for(int y = 0; y < sizeY; y++) {
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for(int x = 0; x < sizeX; x++) {
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u16 v = *p++;
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*b++ = ((v >> systemBlueShift) & 0x01f) << 3; // B
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*b++ = ((v >> systemGreenShift) & 0x001f) << 3; // G
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*b++ = ((v >> systemRedShift) & 0x001f) << 3; // R
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}
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p++; // skip black pixel for filters
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p++; // skip black pixel for filters
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p -= 2*(w+2);
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fwrite(writeBuffer, 1, 3*w, fp);
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b = writeBuffer;
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}
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}
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break;
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case 24:
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{
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u8 *pixU8 = (u8 *)pix+3*w*(h-1);
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for(int y = 0; y < sizeY; y++) {
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for(int x = 0; x < sizeX; x++) {
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if(systemRedShift > systemBlueShift) {
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*b++ = *pixU8++; // B
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*b++ = *pixU8++; // G
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*b++ = *pixU8++; // R
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} else {
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int red = *pixU8++;
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int green = *pixU8++;
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int blue = *pixU8++;
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*b++ = blue;
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*b++ = green;
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*b++ = red;
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}
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}
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pixU8 -= 2*3*w;
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fwrite(writeBuffer, 1, 3*w, fp);
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b = writeBuffer;
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}
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}
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break;
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case 32:
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{
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u32 *pixU32 = (u32 *)(pix+4*(w+1)*(h));
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for(int y = 0; y < sizeY; y++) {
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for(int x = 0; x < sizeX; x++) {
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u32 v = *pixU32++;
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*b++ = ((v >> systemBlueShift) & 0x001f) << 3; // B
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*b++ = ((v >> systemGreenShift) & 0x001f) << 3; // G
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*b++ = ((v >> systemRedShift) & 0x001f) << 3; // R
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}
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pixU32++;
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pixU32 -= 2*(w+1);
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fwrite(writeBuffer, 1, 3*w, fp);
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b = writeBuffer;
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}
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}
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break;
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}
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fclose(fp);
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return true;
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}
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static int utilReadInt2(FILE *f)
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{
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int res = 0;
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int c = fgetc(f);
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if(c == EOF)
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return -1;
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res = c;
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c = fgetc(f);
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if(c == EOF)
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return -1;
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return c + (res<<8);
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}
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static int utilReadInt3(FILE *f)
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{
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int res = 0;
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int c = fgetc(f);
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if(c == EOF)
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return -1;
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res = c;
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c = fgetc(f);
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if(c == EOF)
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return -1;
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res = c + (res<<8);
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c = fgetc(f);
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if(c == EOF)
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return -1;
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return c + (res<<8);
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}
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void utilApplyIPS(const char *ips, u8 **r, int *s)
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{
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// from the IPS spec at http://zerosoft.zophar.net/ips.htm
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FILE *f = fopen(ips, "rb");
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if(!f)
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return;
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u8 *rom = *r;
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int size = *s;
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if(fgetc(f) == 'P' &&
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fgetc(f) == 'A' &&
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fgetc(f) == 'T' &&
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fgetc(f) == 'C' &&
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fgetc(f) == 'H') {
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int b;
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int offset;
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int len;
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for(;;) {
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// read offset
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offset = utilReadInt3(f);
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// if offset == EOF, end of patch
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if(offset == 0x454f46)
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break;
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// read length
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len = utilReadInt2(f);
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if(!len) {
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// len == 0, RLE block
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len = utilReadInt2(f);
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// byte to fill
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int c = fgetc(f);
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if(c == -1)
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break;
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b = (u8)c;
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} else
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b= -1;
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// check if we need to reallocate our ROM
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if((offset + len) >= size) {
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size *= 2;
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rom = (u8 *)realloc(rom, size);
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*r = rom;
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*s = size;
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}
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if(b == -1) {
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// normal block, just read the data
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if(fread(&rom[offset], 1, len, f) != (size_t)len)
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break;
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} else {
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// fill the region with the given byte
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while(len--) {
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rom[offset++] = b;
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}
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}
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}
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}
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// close the file
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fclose(f);
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}
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//TODO: Modify ZSNES code for this
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void utilApplyUPS(const char *ips, u8 **r, int *s)
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{
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}
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extern bool cpuIsMultiBoot;
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bool utilIsGBAImage(const char * file)
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{
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cpuIsMultiBoot = false;
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if(strlen(file) > 4) {
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const char * p = strrchr(file,'.');
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if(p != NULL) {
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if((_stricmp(p, ".agb") == 0) ||
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(_stricmp(p, ".gba") == 0) ||
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(_stricmp(p, ".bin") == 0) ||
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(_stricmp(p, ".elf") == 0))
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return true;
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if(_stricmp(p, ".mb") == 0) {
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cpuIsMultiBoot = true;
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return true;
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}
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}
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}
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return false;
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}
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bool utilIsGBImage(const char * file)
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{
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if(strlen(file) > 4) {
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const char * p = strrchr(file,'.');
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if(p != NULL) {
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if((_stricmp(p, ".dmg") == 0) ||
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(_stricmp(p, ".gb") == 0) ||
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(_stricmp(p, ".gbc") == 0) ||
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(_stricmp(p, ".cgb") == 0) ||
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(_stricmp(p, ".sgb") == 0))
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return true;
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}
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}
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return false;
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}
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bool utilIsGzipFile(const char *file)
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{
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if(strlen(file) > 3) {
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const char * p = strrchr(file,'.');
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if(p != NULL) {
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if(_stricmp(p, ".gz") == 0)
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return true;
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if(_stricmp(p, ".z") == 0)
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return true;
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}
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}
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return false;
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}
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// strip .gz or .z off end
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void utilStripDoubleExtension(const char *file, char *buffer)
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{
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if(buffer != file) // allows conversion in place
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strcpy(buffer, file);
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if(utilIsGzipFile(file)) {
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char *p = strrchr(buffer, '.');
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if(p)
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*p = 0;
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}
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}
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// Opens and scans archive using accept(). Returns File_Extractor if found.
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// If error or not found, displays message and returns NULL.
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static File_Extractor* scan_arc(const char *file, bool (*accept)(const char *),
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char (&buffer) [2048] )
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{
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fex_err_t err;
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File_Extractor* fe = fex_open( file, &err );
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if(!fe)
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{
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systemMessage(MSG_CANNOT_OPEN_FILE, N_("Cannot open file %s: %s"), file, err);
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return NULL;
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}
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// Scan filenames
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bool found=false;
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while(!fex_done(fe)) {
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strncpy(buffer,fex_name(fe),sizeof buffer);
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buffer [sizeof buffer-1] = '\0';
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utilStripDoubleExtension(buffer, buffer);
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if(accept(buffer)) {
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found = true;
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break;
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}
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fex_err_t err = fex_next(fe);
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if(err) {
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systemMessage(MSG_BAD_ZIP_FILE, N_("Cannot read archive %s: %s"), file, err);
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fex_close(fe);
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return NULL;
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}
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}
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if(!found) {
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systemMessage(MSG_NO_IMAGE_ON_ZIP,
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N_("No image found in file %s"), file);
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fex_close(fe);
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return NULL;
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}
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return fe;
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}
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static bool utilIsImage(const char *file)
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{
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return utilIsGBAImage(file) || utilIsGBImage(file);
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}
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IMAGE_TYPE utilFindType(const char *file)
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{
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char buffer [2048];
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if ( !utilIsImage( file ) ) // TODO: utilIsArchive() instead?
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{
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File_Extractor* fe = scan_arc(file,utilIsImage,buffer);
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if(!fe)
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return IMAGE_UNKNOWN;
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fex_close(fe);
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file = buffer;
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}
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return utilIsGBAImage(file) ? IMAGE_GBA : IMAGE_GB;
|
|
}
|
|
|
|
static int utilGetSize(int size)
|
|
{
|
|
int res = 1;
|
|
while(res < size)
|
|
res <<= 1;
|
|
return res;
|
|
}
|
|
|
|
u8 *utilLoad(const char *file,
|
|
bool (*accept)(const char *),
|
|
u8 *data,
|
|
int &size)
|
|
{
|
|
// find image file
|
|
char buffer [2048];
|
|
File_Extractor *fe = scan_arc(file,accept,buffer);
|
|
if(!fe)
|
|
return NULL;
|
|
|
|
// Allocate space for image
|
|
int fileSize = fex_size(fe);
|
|
if(size == 0)
|
|
size = fileSize;
|
|
|
|
u8 *image = data;
|
|
|
|
if(image == NULL) {
|
|
// allocate buffer memory if none was passed to the function
|
|
image = (u8 *)malloc(utilGetSize(size));
|
|
if(image == NULL) {
|
|
fex_close(fe);
|
|
systemMessage(MSG_OUT_OF_MEMORY, N_("Failed to allocate memory for %s"),
|
|
"data");
|
|
return NULL;
|
|
}
|
|
size = fileSize;
|
|
}
|
|
|
|
// Read image
|
|
int read = fileSize <= size ? fileSize : size; // do not read beyond file
|
|
fex_err_t err = fex_read_once(fe, image, read);
|
|
fex_close(fe);
|
|
if(err) {
|
|
systemMessage(MSG_ERROR_READING_IMAGE,
|
|
N_("Error reading image from %s: %s"), buffer, err);
|
|
if(data == NULL)
|
|
free(image);
|
|
return NULL;
|
|
}
|
|
|
|
size = fileSize;
|
|
|
|
return image;
|
|
}
|
|
|
|
void utilWriteInt(gzFile gzFile, int i)
|
|
{
|
|
utilGzWrite(gzFile, &i, sizeof(int));
|
|
}
|
|
|
|
int utilReadInt(gzFile gzFile)
|
|
{
|
|
int i = 0;
|
|
utilGzRead(gzFile, &i, sizeof(int));
|
|
return i;
|
|
}
|
|
|
|
void utilReadData(gzFile gzFile, variable_desc* data)
|
|
{
|
|
while(data->address) {
|
|
utilGzRead(gzFile, data->address, data->size);
|
|
data++;
|
|
}
|
|
}
|
|
|
|
void utilReadDataSkip(gzFile gzFile, variable_desc* data)
|
|
{
|
|
while(data->address) {
|
|
utilGzSeek(gzFile, data->size, SEEK_CUR);
|
|
data++;
|
|
}
|
|
}
|
|
|
|
void utilWriteData(gzFile gzFile, variable_desc *data)
|
|
{
|
|
while(data->address) {
|
|
utilGzWrite(gzFile, data->address, data->size);
|
|
data++;
|
|
}
|
|
}
|
|
|
|
gzFile utilGzOpen(const char *file, const char *mode)
|
|
{
|
|
utilGzWriteFunc = (int (ZEXPORT *)(void *,void * const, unsigned int))gzwrite;
|
|
utilGzReadFunc = gzread;
|
|
utilGzCloseFunc = gzclose;
|
|
utilGzSeekFunc = gzseek;
|
|
|
|
return gzopen(file, mode);
|
|
}
|
|
|
|
gzFile utilMemGzOpen(char *memory, int available, const char *mode)
|
|
{
|
|
utilGzWriteFunc = memgzwrite;
|
|
utilGzReadFunc = memgzread;
|
|
utilGzCloseFunc = memgzclose;
|
|
|
|
return memgzopen(memory, available, mode);
|
|
}
|
|
|
|
int utilGzWrite(gzFile file, const voidp buffer, unsigned int len)
|
|
{
|
|
return utilGzWriteFunc(file, buffer, len);
|
|
}
|
|
|
|
int utilGzRead(gzFile file, voidp buffer, unsigned int len)
|
|
{
|
|
return utilGzReadFunc(file, buffer, len);
|
|
}
|
|
|
|
int utilGzClose(gzFile file)
|
|
{
|
|
return utilGzCloseFunc(file);
|
|
}
|
|
|
|
z_off_t utilGzSeek(gzFile file, z_off_t offset, int whence)
|
|
{
|
|
return utilGzSeekFunc(file, offset, whence);
|
|
}
|
|
|
|
long utilGzMemTell(gzFile file)
|
|
{
|
|
return memtell(file);
|
|
}
|
|
|
|
void utilGBAFindSave(const u8 *data, const int size)
|
|
{
|
|
u32 *p = (u32 *)data;
|
|
u32 *end = (u32 *)(data + size);
|
|
int saveType = 0;
|
|
int flashSize = 0x10000;
|
|
bool rtcFound = false;
|
|
|
|
while(p < end) {
|
|
u32 d = READ32LE(p);
|
|
|
|
if(d == 0x52504545) {
|
|
if(memcmp(p, "EEPROM_", 7) == 0) {
|
|
if(saveType == 0)
|
|
saveType = 3;
|
|
}
|
|
} else if (d == 0x4D415253) {
|
|
if(memcmp(p, "SRAM_", 5) == 0) {
|
|
if(saveType == 0)
|
|
saveType = 1;
|
|
}
|
|
} else if (d == 0x53414C46) {
|
|
if(memcmp(p, "FLASH1M_", 8) == 0) {
|
|
if(saveType == 0) {
|
|
saveType = 2;
|
|
flashSize = 0x20000;
|
|
}
|
|
} else if(memcmp(p, "FLASH", 5) == 0) {
|
|
if(saveType == 0) {
|
|
saveType = 2;
|
|
flashSize = 0x10000;
|
|
}
|
|
}
|
|
} else if (d == 0x52494953) {
|
|
if(memcmp(p, "SIIRTC_V", 8) == 0)
|
|
rtcFound = true;
|
|
}
|
|
p++;
|
|
}
|
|
// if no matches found, then set it to NONE
|
|
if(saveType == 0) {
|
|
saveType = 5;
|
|
}
|
|
rtcEnable(rtcFound);
|
|
cpuSaveType = saveType;
|
|
flashSetSize(flashSize);
|
|
}
|
|
|
|
void utilUpdateSystemColorMaps()
|
|
{
|
|
switch(systemColorDepth) {
|
|
case 16:
|
|
{
|
|
for(int i = 0; i < 0x10000; i++) {
|
|
systemColorMap16[i] = ((i & 0x1f) << systemRedShift) |
|
|
(((i & 0x3e0) >> 5) << systemGreenShift) |
|
|
(((i & 0x7c00) >> 10) << systemBlueShift);
|
|
}
|
|
}
|
|
break;
|
|
case 24:
|
|
case 32:
|
|
{
|
|
for(int i = 0; i < 0x10000; i++) {
|
|
systemColorMap32[i] = ((i & 0x1f) << systemRedShift) |
|
|
(((i & 0x3e0) >> 5) << systemGreenShift) |
|
|
(((i & 0x7c00) >> 10) << systemBlueShift);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|