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authorAndrei Karas <akaras@inbox.ru>2013-08-25 13:19:23 +0300
committerAndrei Karas <akaras@inbox.ru>2013-08-25 14:03:36 +0300
commitba0815355ef7be8e5f46720be5a6911e466e1568 (patch)
treed464944cc5796535507461fa26b49f636e88a9bf /src/resources/surfaceimagehelper.cpp
parent948d940d46240ff518ec9b1037503bebdb47196a (diff)
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add SurfaceImageHelper for loading/processing surfaces for SDL2.
For SDL1.2 used SDLImageHelper.
Diffstat (limited to 'src/resources/surfaceimagehelper.cpp')
-rw-r--r--src/resources/surfaceimagehelper.cpp178
1 files changed, 178 insertions, 0 deletions
diff --git a/src/resources/surfaceimagehelper.cpp b/src/resources/surfaceimagehelper.cpp
new file mode 100644
index 000000000..1b5997ce0
--- /dev/null
+++ b/src/resources/surfaceimagehelper.cpp
@@ -0,0 +1,178 @@
+/*
+ * The ManaPlus Client
+ * Copyright (C) 2004-2009 The Mana World Development Team
+ * Copyright (C) 2009-2010 The Mana Developers
+ * Copyright (C) 2011-2013 The ManaPlus 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/>.
+ */
+
+#ifdef USE_SDL2
+
+#include "resources/surfaceimagehelper.h"
+
+#include "resources/dye.h"
+#include "resources/resourcemanager.h"
+
+#include "client.h"
+#include "logger.h"
+#include "main.h"
+
+#include "resources/image.h"
+
+#include <SDL_image.h>
+
+#include "debug.h"
+
+bool SurfaceImageHelper::mEnableAlphaCache = false;
+
+Image *SurfaceImageHelper::load(SDL_RWops *const rw, Dye const &dye) const
+{
+ SDL_Surface *const tmpImage = loadPng(rw);
+ if (!tmpImage)
+ {
+ logger->log("Error, image load failed: %s", IMG_GetError());
+ return nullptr;
+ }
+
+ SDL_PixelFormat rgba;
+ rgba.palette = nullptr;
+ rgba.BitsPerPixel = 32;
+ rgba.BytesPerPixel = 4;
+
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+ rgba.Rmask = 0x000000FF;
+ rgba.Gmask = 0x0000FF00;
+ rgba.Bmask = 0x00FF0000;
+ rgba.Amask = 0xFF000000;
+#else
+ rgba.Rmask = 0xFF000000;
+ rgba.Gmask = 0x00FF0000;
+ rgba.Bmask = 0x0000FF00;
+ rgba.Amask = 0x000000FF;
+#endif
+
+ SDL_Surface *const surf = SDL_ConvertSurface(
+ tmpImage, &rgba, SDL_SWSURFACE);
+ SDL_FreeSurface(tmpImage);
+
+ uint32_t *pixels = static_cast<uint32_t *>(surf->pixels);
+ const int type = dye.getType();
+
+ switch (type)
+ {
+ case 1:
+ {
+ const DyePalette *const pal = dye.getSPalete();
+ if (pal)
+ pal->replaceSColor(pixels, surf->w * surf->h);
+ break;
+ }
+ case 2:
+ {
+ const DyePalette *const pal = dye.getAPalete();
+ if (pal)
+ pal->replaceAColor(pixels, surf->w * surf->h);
+ break;
+ }
+ case 0:
+ default:
+ {
+ dye.normalDye(pixels, surf->w * surf->h);
+ break;
+ }
+ }
+
+ Image *const image = load(surf);
+ SDL_FreeSurface(surf);
+ return image;
+}
+
+Image *SurfaceImageHelper::load(SDL_Surface *const tmpImage) const
+{
+ return _SDLload(tmpImage);
+}
+
+Image *SurfaceImageHelper::createTextSurface(SDL_Surface *const tmpImage,
+ const int width A_UNUSED,
+ const int height A_UNUSED,
+ const float alpha) const
+{
+ if (!tmpImage)
+ return nullptr;
+
+ Image *img;
+ bool hasAlpha = false;
+ uint8_t *alphaChannel = nullptr;
+ SDL_Surface *image = SDLDuplicateSurface(tmpImage);
+
+ img = new Image(image, hasAlpha, alphaChannel);
+ img->mAlpha = alpha;
+ return img;
+}
+
+SDL_Surface* SurfaceImageHelper::SDLDuplicateSurface(SDL_Surface *const
+ tmpImage)
+{
+ if (!tmpImage || !tmpImage->format)
+ return nullptr;
+
+ return SDL_ConvertSurface(tmpImage, tmpImage->format, SDL_SWSURFACE);
+}
+
+Image *SurfaceImageHelper::_SDLload(SDL_Surface *tmpImage) const
+{
+ if (!tmpImage)
+ return nullptr;
+
+ SDL_Surface *image = convertTo32Bit(tmpImage);
+ return new Image(image, false, nullptr);
+}
+
+int SurfaceImageHelper::useOpenGL() const
+{
+ return 0;
+}
+
+SDL_Surface *SurfaceImageHelper::create32BitSurface(int width, int height) const
+{
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+ const int rmask = 0xff000000;
+ const int gmask = 0x00ff0000;
+ const int bmask = 0x0000ff00;
+ const int amask = 0x000000ff;
+#else
+ const int rmask = 0x000000ff;
+ const int gmask = 0x0000ff00;
+ const int bmask = 0x00ff0000;
+ const int amask = 0xff000000;
+#endif
+
+ return SDL_CreateRGBSurface(SDL_SWSURFACE,
+ width, height, 32, rmask, gmask, bmask, amask);
+}
+
+int SurfaceImageHelper::combineSurface(SDL_Surface *const src,
+ SDL_Rect *const srcrect,
+ SDL_Surface *const dst,
+ SDL_Rect *const dstrect)
+{
+ SDL_SetSurfaceBlendMode (src, SDL_BLENDMODE_BLEND);
+ SDL_BlitSurface(src, srcrect, dst, dstrect);
+ return 1;
+}
+
+#endif // USE_SDL2