Split ImageHelper to ImageHelper, SDLImageHelper, OpenGLImageHelper.

1 files changed, 2 insertions, 469 deletions

diff --git a/src/resources/imagehelper.cpp b/src/resources/imagehelper.cpp
index 9ee52267e..a70889acd 100644
--- a/src/resources/imagehelper.cpp
+++ b/src/resources/imagehelper.cpp
@@ -25,11 +25,6 @@
 #include "resources/dye.h"
 #include "resources/resourcemanager.h"
 
-#ifdef USE_OPENGL
-#include "openglgraphics.h"
-#include "opengl1graphics.h"
-#endif
-
 #include "client.h"
 #include "logger.h"
 #include "main.h"
@@ -43,14 +38,8 @@
 
 #include "debug.h"
 
-#ifdef USE_OPENGL
-int ImageHelper::mUseOpenGL = 0;
-int ImageHelper::mTextureType = 0;
-int ImageHelper::mInternalTextureType = GL_RGBA8;
-int ImageHelper::mTextureSize = 0;
-bool ImageHelper::mBlur = true;
-#endif
-bool ImageHelper::mEnableAlphaCache = false;
+ImageHelper *imageHelper = nullptr;
+
 bool ImageHelper::mEnableAlpha = true;
 
 Resource *ImageHelper::load(SDL_RWops *rw)
@@ -69,198 +58,6 @@ Resource *ImageHelper::load(SDL_RWops *rw)
     return image;
 }
 
-Resource *ImageHelper::load(SDL_RWops *rw, Dye const &dye)
-{
-    SDL_Surface *tmpImage = IMG_Load_RW(rw, 1);
-
-    if (!tmpImage)
-    {
-        logger->log("Error, image load failed: %s", IMG_GetError());
-        return nullptr;
-    }
-
-    SDL_Surface *surf = nullptr;
-    SDL_PixelFormat rgba;
-    rgba.palette = nullptr;
-    rgba.BitsPerPixel = 32;
-    rgba.BytesPerPixel = 4;
-    rgba.colorkey = 0;
-    rgba.alpha = 255;
-    if (mUseOpenGL)
-    {
-        surf = convertTo32Bit(tmpImage);
-        SDL_FreeSurface(tmpImage);
-
-        Uint32 *pixels = static_cast<Uint32 *>(surf->pixels);
-        DyePalette *pal = dye.getSPalete();
-
-        if (pal)
-        {
-            for (Uint32 *p_end = pixels + surf->w * surf->h;
-                pixels != p_end; ++pixels)
-            {
-                Uint8 *p = (Uint8 *)pixels;
-                const int alpha = *p & 255;
-                if (!alpha)
-                    continue;
-                pal->replaceOGLColor(p);
-            }
-        }
-        else
-        {
-            for (Uint32 *p_end = pixels + surf->w * surf->h;
-                pixels != p_end; ++pixels)
-            {
-                const Uint32 p = *pixels;
-                const int alpha = (p >> 24) & 255;
-                if (!alpha)
-                    continue;
-                int v[3];
-                v[0] = (p) & 255;
-                v[1] = (p >> 8) & 255;
-                v[2] = (p >> 16 ) & 255;
-                dye.update(v);
-                *pixels = (v[0]) | (v[1] << 8) | (v[2] << 16) | (alpha << 24);
-            }
-        }
-    }
-    else
-    {
-        rgba.Rmask = 0xFF000000; rgba.Rloss = 0; rgba.Rshift = 24;
-        rgba.Gmask = 0x00FF0000; rgba.Gloss = 0; rgba.Gshift = 16;
-        rgba.Bmask = 0x0000FF00; rgba.Bloss = 0; rgba.Bshift = 8;
-        rgba.Amask = 0x000000FF; rgba.Aloss = 0; rgba.Ashift = 0;
-
-        surf = SDL_ConvertSurface(tmpImage, &rgba, SDL_SWSURFACE);
-        SDL_FreeSurface(tmpImage);
-
-        Uint32 *pixels = static_cast<Uint32 *>(surf->pixels);
-        DyePalette *pal = dye.getSPalete();
-
-        if (pal)
-        {
-            for (Uint32 *p_end = pixels + surf->w * surf->h;
-                pixels != p_end; ++pixels)
-            {
-                Uint8 *p = (Uint8 *)pixels;
-                const int alpha = *p & 255;
-                if (!alpha)
-                    continue;
-                pal->replaceColor(p + 1);
-            }
-        }
-        else
-        {
-            for (Uint32 *p_end = pixels + surf->w * surf->h;
-                pixels != p_end; ++pixels)
-            {
-                const Uint32 p = *pixels;
-                const int alpha = p & 255;
-                if (!alpha)
-                    continue;
-                int v[3];
-                v[0] = (p >> 24) & 255;
-                v[1] = (p >> 16) & 255;
-                v[2] = (p >> 8 ) & 255;
-                dye.update(v);
-                *pixels = (v[0] << 24) | (v[1] << 16) | (v[2] << 8) | alpha;
-            }
-        }
-    }
-
-    Image *image = load(surf);
-    SDL_FreeSurface(surf);
-    return image;
-}
-
-Image *ImageHelper::load(SDL_Surface *tmpImage)
-{
-#ifdef USE_OPENGL
-    if (mUseOpenGL)
-        return _GLload(tmpImage);
-#endif
-    return _SDLload(tmpImage);
-}
-
-Image *ImageHelper::createTextSurface(SDL_Surface *tmpImage, float alpha)
-{
-    if (!tmpImage)
-        return nullptr;
-
-    Image *img;
-#ifdef USE_OPENGL
-    if (mUseOpenGL)
-    {
-        img = _GLload(tmpImage);
-        if (img)
-            img->setAlpha(alpha);
-        return img;
-    }
-#endif
-
-    bool hasAlpha = false;
-    bool converted = false;
-
-    const int sz = tmpImage->w * tmpImage->h;
-
-    // The alpha channel to be filled with alpha values
-    Uint8 *alphaChannel = new Uint8[sz];
-
-    const SDL_PixelFormat * const fmt = tmpImage->format;
-    if (fmt->Amask)
-    {
-        for (int i = 0; i < sz; ++ i)
-        {
-            Uint32 c = (static_cast<Uint32*>(tmpImage->pixels))[i];
-
-            unsigned v = (c & fmt->Amask) >> fmt->Ashift;
-            Uint8 a = (v << fmt->Aloss) + (v >> (8 - (fmt->Aloss << 1)));
-
-            Uint8 a2 = static_cast<Uint8>(static_cast<float>(a) * alpha);
-
-            c &= ~fmt->Amask;
-            c |= ((a2 >> fmt->Aloss) << fmt->Ashift & fmt->Amask);
-            (static_cast<Uint32*>(tmpImage->pixels))[i] = c;
-
-            if (a != 255)
-                hasAlpha = true;
-
-            alphaChannel[i] = a;
-        }
-    }
-
-    SDL_Surface *image;
-
-    // Convert the surface to the current display format
-    if (hasAlpha)
-    {
-        image = SDL_DisplayFormatAlpha(tmpImage);
-    }
-    else
-    {
-        image = SDL_DisplayFormat(tmpImage);
-
-        // We also delete the alpha channel since
-        // it's not used.
-        delete [] alphaChannel;
-        alphaChannel = nullptr;
-    }
-
-    if (!image)
-    {
-        logger->log1("Error: Image convert failed.");
-        delete [] alphaChannel;
-        return nullptr;
-    }
-
-    if (converted)
-        SDL_FreeSurface(tmpImage);
-
-    img = new Image(image, hasAlpha, alphaChannel);
-    img->mAlpha = alpha;
-    return img;
-}
-
 SDL_Surface* ImageHelper::convertTo32Bit(SDL_Surface* tmpImage)
 {
     if (!tmpImage)
@@ -301,261 +98,6 @@ SDL_Surface* ImageHelper::convertTo32Bit(SDL_Surface* tmpImage)
     return SDL_ConvertSurface(tmpImage, &RGBAFormat, SDL_SWSURFACE);
 }
 
-SDL_Surface* ImageHelper::SDLDuplicateSurface(SDL_Surface* tmpImage)
-{
-    if (!tmpImage || !tmpImage->format)
-        return nullptr;
-
-    return SDL_ConvertSurface(tmpImage, tmpImage->format, SDL_SWSURFACE);
-}
-
-Image *ImageHelper::_SDLload(SDL_Surface *tmpImage)
-{
-    if (!tmpImage)
-        return nullptr;
-
-    bool hasAlpha = false;
-    bool converted = false;
-
-    if (tmpImage->format->BitsPerPixel != 32)
-    {
-        tmpImage = convertTo32Bit(tmpImage);
-
-        if (!tmpImage)
-            return nullptr;
-        converted = true;
-    }
-
-    const int sz = tmpImage->w * tmpImage->h;
-
-    // The alpha channel to be filled with alpha values
-    Uint8 *alphaChannel = new Uint8[sz];
-
-    // Figure out whether the image uses its alpha layer
-    if (!tmpImage->format->palette)
-    {
-        const SDL_PixelFormat * const fmt = tmpImage->format;
-        if (fmt->Amask)
-        {
-            for (int i = 0; i < sz; ++ i)
-            {
-                unsigned v = ((static_cast<Uint32*>(tmpImage->pixels))[i]
-                    & fmt->Amask) >> fmt->Ashift;
-                Uint8 a = (v << fmt->Aloss) + (v >> (8 - (fmt->Aloss << 1)));
-
-                if (a != 255)
-                    hasAlpha = true;
-
-                alphaChannel[i] = a;
-            }
-        }
-        else
-        {
-            if (SDL_ALPHA_OPAQUE != 255)
-            {
-                hasAlpha = true;
-                memset(alphaChannel, SDL_ALPHA_OPAQUE, sz);
-            }
-        }
-    }
-    else
-    {
-        if (SDL_ALPHA_OPAQUE != 255)
-        {
-            hasAlpha = true;
-            memset(alphaChannel, SDL_ALPHA_OPAQUE, sz);
-        }
-    }
-
-    SDL_Surface *image;
-
-    // Convert the surface to the current display format
-    if (hasAlpha)
-    {
-        image = SDL_DisplayFormatAlpha(tmpImage);
-    }
-    else
-    {
-        image = SDL_DisplayFormat(tmpImage);
-
-        // We also delete the alpha channel since
-        // it's not used.
-        delete [] alphaChannel;
-        alphaChannel = nullptr;
-    }
-
-    if (!image)
-    {
-        logger->log1("Error: Image convert failed.");
-        delete [] alphaChannel;
-        return nullptr;
-    }
-
-    if (converted)
-        SDL_FreeSurface(tmpImage);
-
-    return new Image(image, hasAlpha, alphaChannel);
-}
-
-#ifdef USE_OPENGL
-int ImageHelper::powerOfTwo(int input)
-{
-    int value;
-    if (mTextureType == GL_TEXTURE_2D)
-    {
-        value = 1;
-        while (value < input && value < mTextureSize)
-            value <<= 1;
-    }
-    else
-    {
-        value = input;
-    }
-    return value >= mTextureSize ? mTextureSize : value;
-}
-
-Image *ImageHelper::_GLload(SDL_Surface *tmpImage)
-{
-    if (!tmpImage)
-        return nullptr;
-
-    // Flush current error flag.
-    glGetError();
-
-    int width = tmpImage->w;
-    int height = tmpImage->h;
-    int realWidth = powerOfTwo(width);
-    int realHeight = powerOfTwo(height);
-
-    if (realWidth < width || realHeight < height)
-    {
-        logger->log("Warning: image too large, cropping to %dx%d texture!",
-                    tmpImage->w, tmpImage->h);
-    }
-
-    // Make sure the alpha channel is not used, but copied to destination
-    SDL_SetAlpha(tmpImage, 0, SDL_ALPHA_OPAQUE);
-
-    // Determine 32-bit masks based on byte order
-    Uint32 rmask, gmask, bmask, amask;
-#if SDL_BYTEORDER == SDL_BIG_ENDIAN
-    rmask = 0xff000000;
-    gmask = 0x00ff0000;
-    bmask = 0x0000ff00;
-    amask = 0x000000ff;
-#else
-    rmask = 0x000000ff;
-    gmask = 0x0000ff00;
-    bmask = 0x00ff0000;
-    amask = 0xff000000;
-#endif
-
-    SDL_Surface *oldImage = nullptr;
-    if (tmpImage->format->BitsPerPixel != 32
-        || realWidth != width || realHeight != height
-        || rmask != tmpImage->format->Rmask
-        || gmask != tmpImage->format->Gmask
-        || amask != tmpImage->format->Amask)
-    {
-        oldImage = tmpImage;
-        tmpImage = SDL_CreateRGBSurface(SDL_SWSURFACE, realWidth, realHeight,
-            32, rmask, gmask, bmask, amask);
-
-        if (!tmpImage)
-        {
-            logger->log("Error, image convert failed: out of memory");
-            return nullptr;
-        }
-        SDL_BlitSurface(oldImage, nullptr, tmpImage, nullptr);
-    }
-
-    GLuint texture;
-    glGenTextures(1, &texture);
-    if (mUseOpenGL == 1)
-        OpenGLGraphics::bindTexture(mTextureType, texture);
-    else if (mUseOpenGL == 2)
-        OpenGL1Graphics::bindTexture(mTextureType, texture);
-
-    if (SDL_MUSTLOCK(tmpImage))
-        SDL_LockSurface(tmpImage);
-
-    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-    if (mBlur)
-    {
-        glTexParameteri(mTextureType, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-        glTexParameteri(mTextureType, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-    }
-    else
-    {
-        glTexParameteri(mTextureType, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-        glTexParameteri(mTextureType, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-    }
-
-    glTexImage2D(mTextureType, 0, mInternalTextureType,
-        tmpImage->w, tmpImage->h,
-        0, GL_RGBA, GL_UNSIGNED_BYTE, tmpImage->pixels);
-
-/*
-    GLint compressed;
-    glGetTexLevelParameteriv(mTextureType, 0,
-        GL_TEXTURE_COMPRESSED_ARB, &compressed);
-    if (compressed)
-        logger->log("image compressed");
-    else
-        logger->log("image not compressed");
-*/
-
-#ifdef DEBUG_OPENGL_LEAKS
-    textures_count ++;
-#endif
-
-    if (SDL_MUSTLOCK(tmpImage))
-        SDL_UnlockSurface(tmpImage);
-
-    if (oldImage)
-        SDL_FreeSurface(tmpImage);
-
-    GLenum error = glGetError();
-    if (error)
-    {
-        std::string errmsg = "Unknown error";
-        switch (error)
-        {
-            case GL_INVALID_ENUM:
-                errmsg = "GL_INVALID_ENUM";
-                break;
-            case GL_INVALID_VALUE:
-                errmsg = "GL_INVALID_VALUE";
-                break;
-            case GL_INVALID_OPERATION:
-                errmsg = "GL_INVALID_OPERATION";
-                break;
-            case GL_STACK_OVERFLOW:
-                errmsg = "GL_STACK_OVERFLOW";
-                break;
-            case GL_STACK_UNDERFLOW:
-                errmsg = "GL_STACK_UNDERFLOW";
-                break;
-            case GL_OUT_OF_MEMORY:
-                errmsg = "GL_OUT_OF_MEMORY";
-                break;
-            default:
-                break;
-        }
-        logger->log("Error: Image GL import failed: %s", errmsg.c_str());
-        return nullptr;
-    }
-
-    return new Image(texture, width, height, realWidth, realHeight);
-}
-
-void ImageHelper::setLoadAsOpenGL(int useOpenGL)
-{
-    ImageHelper::mUseOpenGL = useOpenGL;
-}
-
-#endif
-
 void ImageHelper::dumpSurfaceFormat(SDL_Surface *image)
 {
     if (image->format)
@@ -571,12 +113,3 @@ void ImageHelper::dumpSurfaceFormat(SDL_Surface *image)
             format->Gmask, format->Bmask, format->Amask);
     }
 }
-
-int ImageHelper::useOpenGL()
-{
-#ifdef USE_OPENGL
-    return mUseOpenGL;
-#else
-    return 0;
-#endif
-}