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/*
* The ManaPlus Client
* Copyright (C) 2004-2009 The Mana World Development Team
* Copyright (C) 2009-2010 The Mana Developers
* Copyright (C) 2011-2020 The ManaPlus Developers
* Copyright (C) 2020-2023 The ManaVerse Developers
*
* This file is part of The ManaPlus Client.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "resources/imagehelper.h"
#include "logger.h"
#include "resources/dye/dye.h"
#include "resources/dye/dyepalette.h"
#include "utils/sdlcheckutils.h"
PRAGMA48(GCC diagnostic push)
PRAGMA48(GCC diagnostic ignored "-Wshadow")
#include <SDL_image.h>
PRAGMA48(GCC diagnostic pop)
#include "debug.h"
#ifndef SDL_BIG_ENDIAN
#error missing SDL_endian.h
#endif // SDL_BYTEORDER
ImageHelper *imageHelper = nullptr;
ImageHelper *surfaceImageHelper = nullptr;
bool ImageHelper::mEnableAlpha = true;
RenderType ImageHelper::mUseOpenGL = RENDER_SOFTWARE;
Image *ImageHelper::load(SDL_RWops *const rw)
{
SDL_Surface *const tmpImage = loadPng(rw);
if (tmpImage == nullptr)
{
logger->log("Error, image load failed: %s", SDL_GetError());
return nullptr;
}
Image *const image = loadSurface(tmpImage);
MSDL_FreeSurface(tmpImage);
return image;
}
Image *ImageHelper::load(SDL_RWops *const rw, Dye const &dye)
{
BLOCK_START("ImageHelper::load")
SDL_Surface *const tmpImage = loadPng(rw);
if (tmpImage == nullptr)
{
logger->log("Error, image load failed: %s", SDL_GetError());
BLOCK_END("ImageHelper::load")
return nullptr;
}
SDL_PixelFormat rgba;
rgba.palette = nullptr;
rgba.BitsPerPixel = 32;
rgba.BytesPerPixel = 4;
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
rgba.Rmask = 0x000000FFU;
rgba.Gmask = 0x0000FF00U;
rgba.Bmask = 0x00FF0000U;
rgba.Amask = 0xFF000000U;
#else // SDL_BYTEORDER == SDL_BIG_ENDIAN
rgba.Rmask = 0xFF000000U;
rgba.Gmask = 0x00FF0000U;
rgba.Bmask = 0x0000FF00U;
rgba.Amask = 0x000000FFU;
#endif // SDL_BYTEORDER == SDL_BIG_ENDIAN
SDL_Surface *const surf = MSDL_ConvertSurface(
tmpImage, &rgba, SDL_SWSURFACE);
MSDL_FreeSurface(tmpImage);
if (surf == nullptr)
return nullptr;
uint32_t *const pixels = static_cast<uint32_t *>(surf->pixels);
const int type = dye.getType();
switch (type)
{
case 1:
{
const DyePalette *const pal = dye.getSPalete();
if (pal != nullptr)
DYEPALETTEP(pal, SColor)(pixels, surf->w * surf->h);
break;
}
case 2:
{
const DyePalette *const pal = dye.getAPalete();
if (pal != nullptr)
DYEPALETTEP(pal, AColor)(pixels, surf->w * surf->h);
break;
}
case 0:
default:
{
dye.normalDye(pixels, surf->w * surf->h);
break;
}
}
Image *const image = loadSurface(surf);
MSDL_FreeSurface(surf);
BLOCK_END("ImageHelper::load")
return image;
}
SDL_Surface* ImageHelper::convertTo32Bit(SDL_Surface *const tmpImage)
{
if (tmpImage == nullptr)
return nullptr;
SDL_PixelFormat RGBAFormat;
RGBAFormat.palette = nullptr;
#ifndef USE_SDL2
RGBAFormat.colorkey = 0;
RGBAFormat.alpha = 0;
#endif // USE_SDL2
RGBAFormat.BitsPerPixel = 32;
RGBAFormat.BytesPerPixel = 4;
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
RGBAFormat.Rmask = 0xFF000000U;
RGBAFormat.Rshift = 0;
RGBAFormat.Rloss = 0;
RGBAFormat.Gmask = 0x00FF0000U;
RGBAFormat.Gshift = 8;
RGBAFormat.Gloss = 0;
RGBAFormat.Bmask = 0x0000FF00U;
RGBAFormat.Bshift = 16;
RGBAFormat.Bloss = 0;
RGBAFormat.Amask = 0x000000FFU;
RGBAFormat.Ashift = 24;
RGBAFormat.Aloss = 0;
#else // SDL_BYTEORDER == SDL_BIG_ENDIAN
RGBAFormat.Rmask = 0x000000FFU;
RGBAFormat.Rshift = 24;
RGBAFormat.Rloss = 0;
RGBAFormat.Gmask = 0x0000FF00U;
RGBAFormat.Gshift = 16;
RGBAFormat.Gloss = 0;
RGBAFormat.Bmask = 0x00FF0000U;
RGBAFormat.Bshift = 8;
RGBAFormat.Bloss = 0;
RGBAFormat.Amask = 0xFF000000U;
RGBAFormat.Ashift = 0;
RGBAFormat.Aloss = 0;
#endif // SDL_BYTEORDER == SDL_BIG_ENDIAN
return MSDL_ConvertSurface(tmpImage, &RGBAFormat, SDL_SWSURFACE);
}
void ImageHelper::dumpSurfaceFormat(const SDL_Surface *const image)
{
if (image == nullptr)
return;
if (image->format != nullptr)
{
const SDL_PixelFormat * const format = image->format;
logger->log("Bytes per pixel: %d", format->BytesPerPixel);
#ifdef USE_SDL2
logger->log("Format: %u", format->format);
#else // USE_SDL2
logger->log("Alpha: %d", format->alpha);
logger->log("Color key: %u", format->colorkey);
#endif // USE_SDL2
logger->log("Loss: %02x, %02x, %02x, %02x",
CAST_U32(format->Rloss),
CAST_U32(format->Gloss),
CAST_U32(format->Bloss),
CAST_U32(format->Aloss));
logger->log("Shift: %02x, %02x, %02x, %02x",
CAST_U32(format->Rshift),
CAST_U32(format->Gshift),
CAST_U32(format->Bshift),
CAST_U32(format->Ashift));
logger->log("Mask: %08x, %08x, %08x, %08x", format->Rmask,
format->Gmask, format->Bmask, format->Amask);
}
logger->log("Flags: %u", image->flags);
logger->log("Pitch: %d", CAST_S32(image->pitch));
#ifndef USE_SDL2
logger->log("Offset: %d", image->offset);
#endif // USE_SDL2
}
SDL_Surface *ImageHelper::loadPng(SDL_RWops *const rw)
{
if (rw == nullptr)
return nullptr;
if (IMG_isPNG(rw) != 0)
{
SDL_Surface *const tmpImage = MIMG_LoadPNG_RW(rw);
SDL_RWclose(rw);
return tmpImage;
}
if (IMG_isJPG(rw) != 0)
{
SDL_Surface *const tmpImage = MIMG_LoadJPG_RW(rw);
SDL_RWclose(rw);
return tmpImage;
}
logger->log("Error, image is not png");
SDL_RWclose(rw);
return nullptr;
}
SDL_Surface *ImageHelper::create32BitSurface(int width,
int height) const
{
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
const uint32_t rmask = 0xff000000U;
const uint32_t gmask = 0x00ff0000U;
const uint32_t bmask = 0x0000ff00U;
const uint32_t amask = 0x000000ffU;
#else // SDL_BYTEORDER == SDL_BIG_ENDIAN
const uint32_t rmask = 0x000000ffU;
const uint32_t gmask = 0x0000ff00U;
const uint32_t bmask = 0x00ff0000U;
const uint32_t amask = 0xff000000U;
#endif // SDL_BYTEORDER == SDL_BIG_ENDIAN
return MSDL_CreateRGBSurface(SDL_SWSURFACE,
width, height, 32, rmask, gmask, bmask, amask);
}
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