mirror of
https://github.com/vcmi/vcmi.git
synced 2024-12-26 22:57:00 +02:00
235 lines
6.5 KiB
C++
235 lines
6.5 KiB
C++
#include "stdafx.h"
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#include "SDL_Extensions.h"
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#include "SDL_TTF.h"
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extern SDL_Surface * ekran;
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extern SDL_Color tytulowy, tlo, zwykly ;
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bool isItIn(const SDL_Rect * rect, int x, int y)
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{
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if ((x>rect->x && x<rect->x+rect->w) && (y>rect->y && y<rect->y+rect->h))
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return true;
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else return false;
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}
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SDL_Rect genRect(int hh, int ww, int xx, int yy)
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{
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SDL_Rect ret;
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ret.h=hh;
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ret.w=ww;
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ret.x=xx;
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ret.y=yy;
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return ret;
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}
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void blitAt(SDL_Surface * src, int x, int y, SDL_Surface * dst=ekran)
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{
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SDL_BlitSurface(src,NULL,dst,&genRect(src->h,src->w,x,y));
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}
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SDL_Color genRGB(int r, int g, int b, int a=0)
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{
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SDL_Color ret;
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ret.b=b;
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ret.g=g;
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ret.r=r;
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ret.unused=a;
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return ret;
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}
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void updateRect (SDL_Rect * rect, SDL_Surface * scr = ekran)
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{
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SDL_UpdateRect(scr,rect->x,rect->y,rect->w,rect->h);
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}
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void printAt(std::string text, int x, int y, TTF_Font * font, SDL_Color kolor=tytulowy, SDL_Surface * dst=ekran)
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{
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SDL_Surface * temp = TTF_RenderText_Blended(font,text.c_str(),kolor);
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SDL_BlitSurface(temp,NULL,dst,&genRect(temp->h,temp->w,x,y));
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SDL_UpdateRect(dst,x,y,temp->w,temp->h);
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SDL_FreeSurface(temp);
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}
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void CSDL_Ext::SDL_PutPixel(SDL_Surface *ekran, int x, int y, Uint8 R, Uint8 G, Uint8 B, int myC)
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{
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Uint8 *p = (Uint8 *)ekran->pixels + y * ekran->pitch + x * ekran->format->BytesPerPixel-myC;
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if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
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{
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p[0] = R;
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p[1] = G;
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p[2] = B;
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}
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else
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{
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p[0] = B;
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p[1] = G;
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p[2] = R;
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}
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SDL_UpdateRect(ekran, x, y, 1, 1);
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}
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///**************/
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///Reverses the toRot surface by the vertical axis
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///**************/
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SDL_Surface * CSDL_Ext::rotate01(SDL_Surface * toRot)
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{
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SDL_Surface * first = SDL_CreateRGBSurface(toRot->flags, toRot->w, toRot->h, toRot->format->BitsPerPixel, toRot->format->Rmask, toRot->format->Gmask, toRot->format->Bmask, toRot->format->Amask);
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SDL_Surface * ret = SDL_ConvertSurface(first, toRot->format, toRot->flags);
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for(int i=0; i<ret->w; ++i)
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{
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for(int j=0; j<ret->h; ++j)
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{
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{
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Uint8 *p = (Uint8 *)toRot->pixels + j * toRot->pitch + (ret->w - i - 1) * toRot->format->BytesPerPixel;
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if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
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{
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CSDL_Ext::SDL_PutPixel(ret, i, j, p[0], p[1], p[2], 2);
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}
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else
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{
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CSDL_Ext::SDL_PutPixel(ret, i, j, p[2], p[1], p[0], 2);
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}
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}
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}
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}
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SDL_FreeSurface(first);
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return ret;
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}
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SDL_Surface * CSDL_Ext::hFlip(SDL_Surface * toRot)
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{
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SDL_Surface * first = SDL_CreateRGBSurface(toRot->flags, toRot->w, toRot->h, toRot->format->BitsPerPixel, toRot->format->Rmask, toRot->format->Gmask, toRot->format->Bmask, toRot->format->Amask);
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SDL_Surface * ret = SDL_ConvertSurface(first, toRot->format, toRot->flags);
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for(int i=0; i<ret->w; ++i)
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{
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for(int j=0; j<ret->h; ++j)
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{
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{
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Uint8 *p = (Uint8 *)toRot->pixels + (ret->h - j -1) * toRot->pitch + i * toRot->format->BytesPerPixel-2;
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int k=2;
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if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
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{
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CSDL_Ext::SDL_PutPixel(ret, i, j, p[0], p[1], p[2], k);
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}
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else
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{
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CSDL_Ext::SDL_PutPixel(ret, i, j, p[2], p[1], p[0], k);
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}
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}
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}
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}
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SDL_FreeSurface(first);
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return ret;
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};
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///**************/
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///Rotates toRot surface by 90 degrees left
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///**************/
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SDL_Surface * CSDL_Ext::rotate02(SDL_Surface * toRot)
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{
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SDL_Surface * first = SDL_CreateRGBSurface(toRot->flags, toRot->h, toRot->w, toRot->format->BitsPerPixel, toRot->format->Rmask, toRot->format->Gmask, toRot->format->Bmask, toRot->format->Amask);
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SDL_Surface * ret = SDL_ConvertSurface(first, toRot->format, toRot->flags);
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for(int i=0; i<ret->w; ++i)
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{
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for(int j=0; j<ret->h; ++j)
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{
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{
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Uint8 *p = (Uint8 *)toRot->pixels + i * toRot->pitch + j * toRot->format->BytesPerPixel;
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if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
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{
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SDL_PutPixel(ret, i, j, p[0], p[1], p[2]);
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}
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else
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{
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SDL_PutPixel(ret, i, j, p[2], p[1], p[0]);
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}
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}
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}
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}
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SDL_FreeSurface(first);
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return ret;
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}
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///*************/
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///Rotates toRot surface by 180 degrees
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///*************/
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SDL_Surface * CSDL_Ext::rotate03(SDL_Surface * toRot)
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{
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SDL_Surface * first = SDL_CreateRGBSurface(toRot->flags, toRot->w, toRot->h, toRot->format->BitsPerPixel, toRot->format->Rmask, toRot->format->Gmask, toRot->format->Bmask, toRot->format->Amask);
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SDL_Surface * ret = SDL_ConvertSurface(first, toRot->format, toRot->flags);
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for(int i=0; i<ret->w; ++i)
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{
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for(int j=0; j<ret->h; ++j)
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{
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{
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Uint8 *p = (Uint8 *)toRot->pixels + (ret->h - j - 1) * toRot->pitch + (ret->w - i - 1) * toRot->format->BytesPerPixel+2;
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if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
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{
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SDL_PutPixel(ret, i, j, p[0], p[1], p[2], 2);
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}
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else
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{
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SDL_PutPixel(ret, i, j, p[2], p[1], p[0], 2);
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}
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}
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}
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}
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SDL_FreeSurface(first);
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return ret;
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}
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//converts surface to cursor
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SDL_Cursor * CSDL_Ext::SurfaceToCursor(SDL_Surface *image, int hx, int hy)
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{
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int w, x, y;
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Uint8 *data, *mask, *d, *m, r, g, b;
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Uint32 color;
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SDL_Cursor *cursor;
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w = (image->w + 7) / 8;
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data = (Uint8 *)alloca(w * image->h * 2);
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if (data == NULL)
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return NULL;
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memset(data, 0, w * image->h * 2);
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mask = data + w * image->h;
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if (SDL_MUSTLOCK(image))
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SDL_LockSurface(image);
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for (y = 0; y < image->h; y++)
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{
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d = data + y * w;
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m = mask + y * w;
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for (x = 0; x < image->w; x++)
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{
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color = CSDL_Ext::SDL_GetPixel(image, x, y);
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if ((image->flags & SDL_SRCCOLORKEY) == 0 || color != image->format->colorkey)
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{
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SDL_GetRGB(color, image->format, &r, &g, &b);
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color = (r + g + b) / 3;
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m[x / 8] |= 128 >> (x & 7);
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if (color < 128)
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d[x / 8] |= 128 >> (x & 7);
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}
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}
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}
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if (SDL_MUSTLOCK(image))
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SDL_UnlockSurface(image);
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cursor = SDL_CreateCursor(data, mask, w, image->h, hx, hy);
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return cursor;
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}
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Uint32 CSDL_Ext::SDL_GetPixel(SDL_Surface *surface, int x, int y)
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{
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int bpp = surface->format->BytesPerPixel;
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/* Here p is the address to the pixel we want to retrieve */
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Uint8 *p = (Uint8 *)surface->pixels + y * surface->pitch + x * bpp;
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switch(bpp) {
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case 1:
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return *p;
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case 2:
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return *(Uint16 *)p;
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case 3:
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if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
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return p[0] << 16 | p[1] << 8 | p[2];
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else
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return p[0] | p[1] << 8 | p[2] << 16;
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case 4:
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return *(Uint32 *)p;
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default:
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return 0; /* shouldn't happen, but avoids warnings */
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}
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} |