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https://github.com/libretro/beetle-pce-fast-libretro.git
synced 2024-11-23 16:00:08 +00:00
97 lines
2.4 KiB
C++
97 lines
2.4 KiB
C++
/* Mednafen - Multi-system Emulator
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) 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
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "../mednafen.h"
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#include "surface.h"
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MDFN_PixelFormat::MDFN_PixelFormat()
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{
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bpp = 0;
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colorspace = 0;
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Rshift = 0;
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Gshift = 0;
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Bshift = 0;
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Ashift = 0;
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}
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MDFN_PixelFormat::MDFN_PixelFormat(const unsigned int p_colorspace, const uint8 p_rs, const uint8 p_gs, const uint8 p_bs, const uint8 p_as)
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{
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#if defined(WANT_16BPP)
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bpp = 16;
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#else
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bpp = 32;
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#endif
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colorspace = p_colorspace;
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Rshift = p_rs;
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Gshift = p_gs;
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Bshift = p_bs;
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Ashift = p_as;
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}
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MDFN_Surface::MDFN_Surface()
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{
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memset(&format, 0, sizeof(format));
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pixels16 = NULL;
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pitchinpix = 0;
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w = 0;
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h = 0;
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}
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MDFN_Surface::MDFN_Surface(void *const p_pixels, const uint32 p_width, const uint32 p_height, const uint32 p_pitchinpix, const MDFN_PixelFormat &nf)
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{
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Init(p_pixels, p_width, p_height, p_pitchinpix, nf);
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}
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void MDFN_Surface::Init(void *const p_pixels, const uint32 p_width, const uint32 p_height, const uint32 p_pitchinpix, const MDFN_PixelFormat &nf)
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{
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void *rpix = NULL;
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assert(nf.bpp == 16 || nf.bpp == 32);
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format = nf;
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pixels16 = NULL;
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if(!(rpix = calloc(1, p_pitchinpix * p_height * (nf.bpp / 8))))
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throw(1);
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//if(nf.bpp == 16)
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pixels16 = (uint16 *)rpix;
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w = p_width;
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h = p_height;
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pitchinpix = p_pitchinpix;
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}
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// When we're converting, only convert the w*h area(AKA leave the last part of the line, pitch32 - w, alone),
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// for places where we store auxillary information there(graphics viewer in the debugger), and it'll be faster
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// to boot.
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void MDFN_Surface::SetFormat(const MDFN_PixelFormat &nf, bool convert)
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{
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format = nf;
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}
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MDFN_Surface::~MDFN_Surface()
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{
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if(pixels16)
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free(pixels16);
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}
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