From a6dc7abc9b8cc3986eda5a84141da7dc9e4e8f1a Mon Sep 17 00:00:00 2001 From: aliaspider Date: Wed, 29 Oct 2014 05:36:07 +0100 Subject: start moving everything to C --- source/screenshot.c | 235 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 235 insertions(+) create mode 100644 source/screenshot.c (limited to 'source/screenshot.c') diff --git a/source/screenshot.c b/source/screenshot.c new file mode 100644 index 0000000..f33b240 --- /dev/null +++ b/source/screenshot.c @@ -0,0 +1,235 @@ +/******************************************************************************* + Snes9x - Portable Super Nintendo Entertainment System (TM) emulator. + + (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and + Jerremy Koot (jkoot@snes9x.com) + + (c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net) + + (c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net), + funkyass (funkyass@spam.shaw.ca), + Joel Yliluoma (http://iki.fi/bisqwit/) + Kris Bleakley (codeviolation@hotmail.com), + Matthew Kendora, + Nach (n-a-c-h@users.sourceforge.net), + Peter Bortas (peter@bortas.org) and + zones (kasumitokoduck@yahoo.com) + + C4 x86 assembler and some C emulation code + (c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com), + _Demo_ (_demo_@zsnes.com), and Nach + + C4 C++ code + (c) Copyright 2003 Brad Jorsch + + DSP-1 emulator code + (c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson, + John Weidman, neviksti (neviksti@hotmail.com), + Kris Bleakley, Andreas Naive + + DSP-2 emulator code + (c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and + Lord Nightmare (lord_nightmare@users.sourceforge.net + + OBC1 emulator code + (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and + Kris Bleakley + Ported from x86 assembler to C by sanmaiwashi + + SPC7110 and RTC C++ emulator code + (c) Copyright 2002 Matthew Kendora with research by + zsKnight, John Weidman, and Dark Force + + S-DD1 C emulator code + (c) Copyright 2003 Brad Jorsch with research by + Andreas Naive and John Weidman + + S-RTC C emulator code + (c) Copyright 2001 John Weidman + + ST010 C++ emulator code + (c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora + + Super FX x86 assembler emulator code + (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault + + Super FX C emulator code + (c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman + + + SH assembler code partly based on x86 assembler code + (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se) + + + Specific ports contains the works of other authors. See headers in + individual files. + + Snes9x homepage: http://www.snes9x.com + + Permission to use, copy, modify and distribute Snes9x in both binary and + source form, for non-commercial purposes, is hereby granted without fee, + providing that this license information and copyright notice appear with + all copies and any derived work. + + This software is provided 'as-is', without any express or implied + warranty. In no event shall the authors be held liable for any damages + arising from the use of this software. + + Snes9x is freeware for PERSONAL USE only. Commercial users should + seek permission of the copyright holders first. Commercial use includes + charging money for Snes9x or software derived from Snes9x. + + The copyright holders request that bug fixes and improvements to the code + should be forwarded to them so everyone can benefit from the modifications + in future versions. + + Super NES and Super Nintendo Entertainment System are trademarks of + Nintendo Co., Limited and its subsidiary companies. +*******************************************************************************/ + + +#ifdef HAVE_CONFIG_H + #include +#endif +#include + +#ifndef __WIN32__ +#include +#else +#include +#endif +#include +#include + +#ifdef HAVE_LIBPNG +#include +#endif + +#include "snes9x.h" +#include "memmap.h" +#include "display.h" +#include "gfx.h" +#include "ppu.h" +#include "screenshot.h" + +bool8 S9xDoScreenshot(int width, int height){ +#ifdef HAVE_LIBPNG + FILE *fp; + png_structp png_ptr; + png_infop info_ptr; + png_color_8 sig_bit; + png_color pngpal[256]; + int imgwidth; + int imgheight; + const char *fname=S9xGetFilenameInc(".png"); + + Settings.TakeScreenshot=FALSE; + + if((fp=fopen(fname, "wb"))==NULL){ + perror("Screenshot failed"); + return FALSE; + } + + png_ptr=png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); + if(!png_ptr){ + fclose(fp); + unlink(fname); + return FALSE; + } + info_ptr=png_create_info_struct(png_ptr); + if(!info_ptr){ + png_destroy_write_struct(&png_ptr, (png_infopp)NULL); + fclose(fp); + unlink(fname); + return FALSE; + } + + if(setjmp(png_jmpbuf(png_ptr))){ + perror("Screenshot: setjmp"); + png_destroy_write_struct(&png_ptr, &info_ptr); + fclose(fp); + unlink(fname); + return FALSE; + } + + imgwidth=width; + imgheight=height; + if(Settings.StretchScreenshots==1){ + if(width<=256 && height>SNES_HEIGHT_EXTENDED) imgwidth=width<<1; + if(width>256 && height<=SNES_HEIGHT_EXTENDED) imgheight=height<<1; + } else if(Settings.StretchScreenshots==2){ + if(width<=256) imgwidth=width<<1; + if(height<=SNES_HEIGHT_EXTENDED) imgheight=height<<1; + } + + png_init_io(png_ptr, fp); + if(!Settings.SixteenBit){ + // BJ: credit sanmaiwashi for the idea to do palettized pngs, and to + // S9xSetPalette in x11.cpp for how to calculate the RGB values + int b=IPPU.MaxBrightness*140; + for(int i=0; i<256; i++){ + pngpal[i].red = (PPU.CGDATA[i] & 0x1f)*b>>8; + pngpal[i].green = ((PPU.CGDATA[i] >> 5) & 0x1f)*b>>8; + pngpal[i].blue = ((PPU.CGDATA[i] >> 10) & 0x1f)*b>>8; + } + png_set_PLTE(png_ptr, info_ptr, pngpal, 256); + } + png_set_IHDR(png_ptr, info_ptr, imgwidth, imgheight, 8, + (Settings.SixteenBit?PNG_COLOR_TYPE_RGB:PNG_COLOR_TYPE_PALETTE), + PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, + PNG_FILTER_TYPE_DEFAULT); + + if(Settings.SixteenBit){ + /* 5 bits per color */ + sig_bit.red=5; + sig_bit.green=5; + sig_bit.blue=5; + png_set_sBIT(png_ptr, info_ptr, &sig_bit); + png_set_shift(png_ptr, &sig_bit); + } + + png_write_info(png_ptr, info_ptr); + + png_set_packing(png_ptr); + + png_byte *row_pointer=new png_byte [png_get_rowbytes(png_ptr, info_ptr)]; + uint8 *screen=GFX.Screen; + for(int y=0; y