games/vcmi
1
0
Fork 0
mirror of https://github.com/vcmi/vcmi.git synced 2024-12-22 22:13:35 +02:00
Code Issues Releases Activity
db755622b3
vcmi/client/SDL_Extensions.cpp
mateuszb db755622b3 * next part of campaign support
2010-02-18 12:34:44 +00:00

1062 lines
29 KiB
C++
Raw Blame History

#include "../stdafx.h"
#include "SDL_Extensions.h"
#include "SDL_ttf.h"
#include "CGameInfo.h"
#include <iostream>
#include <utility>
#include <algorithm>
#include "CMessage.h"
#include <boost/algorithm/string.hpp>
#include "../hch/CDefHandler.h"
#include <map>
#include "Graphics.h"
/*
* SDL_Extensions.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
SDL_Surface * CSDL_Ext::newSurface(int w, int h, SDL_Surface * mod) //creates new surface, with flags/format same as in surface given
{
return SDL_CreateRGBSurface(mod->flags,w,h,mod->format->BitsPerPixel,mod->format->Rmask,mod->format->Gmask,mod->format->Bmask,mod->format->Amask);
}
SDL_Surface * CSDL_Ext::copySurface(SDL_Surface * mod) //returns copy of given surface
{
//return SDL_DisplayFormat(mod);
return SDL_ConvertSurface(mod, mod->format, mod->flags);
}
bool isItIn(const SDL_Rect * rect, int x, int y)
{
if ((x>rect->x && x<rect->x+rect->w) && (y>rect->y && y<rect->y+rect->h))
return true;
else return false;
}
void blitAtWR(SDL_Surface * src, int x, int y, SDL_Surface * dst)
{
SDL_Rect pom = genRect(src->h,src->w,x,y);
SDL_BlitSurface(src,NULL,dst,&pom);
SDL_UpdateRect(dst,x,y,src->w,src->h);
}
void blitAt(SDL_Surface * src, int x, int y, SDL_Surface * dst)
{
if(!dst) dst = screen;
SDL_Rect pom = genRect(src->h,src->w,x,y);
SDL_BlitSurface(src,NULL,dst,&pom);
}
void blitAtWR(SDL_Surface * src, const SDL_Rect & pos, SDL_Surface * dst)
{
blitAtWR(src,pos.x,pos.y,dst);
}
void blitAt(SDL_Surface * src, const SDL_Rect & pos, SDL_Surface * dst)
{
blitAt(src,pos.x,pos.y,dst);
}
SDL_Color genRGB(int r, int g, int b, int a=0)
{
SDL_Color ret;
ret.b=b;
ret.g=g;
ret.r=r;
ret.unused=a;
return ret;
}
void updateRect (SDL_Rect * rect, SDL_Surface * scr)
{
SDL_UpdateRect(scr,rect->x,rect->y,rect->w,rect->h);
}
void printAtMiddleWB(const std::string & text, int x, int y, TTF_Font * font, int charpr, SDL_Color kolor, SDL_Surface * dst)
{
std::vector<std::string> * ws = CMessage::breakText(text,charpr);
std::vector<SDL_Surface*> wesu;
wesu.resize(ws->size());
for (size_t i=0; i < wesu.size(); ++i)
{
wesu[i]=TTF_RenderText_Blended(font,(*ws)[i].c_str(),kolor);
}
int tox=0, toy=0;
for (size_t i=0; i < wesu.size(); ++i)
{
toy+=wesu[i]->h;
if (tox < wesu[i]->w)
tox=wesu[i]->w;
}
int evx, evy = y - (toy/2);
for (size_t i=0; i < wesu.size(); ++i)
{
evx = (x - (tox/2)) + ((tox-wesu[i]->w)/2);
blitAt(wesu[i],evx,evy,dst);
evy+=wesu[i]->h;
}
for (size_t i=0; i < wesu.size(); ++i)
SDL_FreeSurface(wesu[i]);
delete ws;
}
void printAtWB(const std::string & text, int x, int y, TTF_Font * font, int charpr, SDL_Color kolor, SDL_Surface * dst)
{
std::vector<std::string> * ws = CMessage::breakText(text,charpr);
std::vector<SDL_Surface*> wesu;
wesu.resize(ws->size());
for (size_t i=0; i < wesu.size(); ++i)
wesu[i]=TTF_RenderText_Blended(font,(*ws)[i].c_str(),kolor);
int evy = y;
for (size_t i=0; i < wesu.size(); ++i)
{
blitAt(wesu[i],x,evy,dst);
evy+=wesu[i]->h;
}
for (size_t i=0; i < wesu.size(); ++i)
SDL_FreeSurface(wesu[i]);
delete ws;
}
void CSDL_Ext::printAtWB(const std::string & text, int x, int y, EFonts font, int charpr, SDL_Color kolor, SDL_Surface * dst, bool refresh)
{
if (graphics->fontsTrueType[font])
{
printAtWB(text,x, y, graphics->fontsTrueType[font], charpr, kolor, dst);
return;
}
const Font *f = graphics->fonts[font];
std::vector<std::string> * ws = CMessage::breakText(text,charpr);
int cury = y;
for (size_t i=0; i < ws->size(); ++i)
{
printAt((*ws)[i], x, cury, font, kolor, dst, refresh);
cury += f->height;
}
delete ws;
}
void CSDL_Ext::printAtMiddleWB( const std::string & text, int x, int y, EFonts font, int charpr, SDL_Color kolor/*=tytulowy*/, SDL_Surface * dst/*=screen*/, bool refrsh /*= false*/ )
{
if (graphics->fontsTrueType[font])
{
printAtMiddleWB(text,x, y, graphics->fontsTrueType[font], charpr, kolor, dst);
return;
}
const Font *f = graphics->fonts[font];
std::vector<std::string> * ws = CMessage::breakText(text,charpr);
int totalHeight = ws->size() * f->height;
int cury = y - totalHeight/2;
for (size_t i=0; i < ws->size(); ++i)
{
printAt((*ws)[i], x - f->getWidth((*ws)[i].c_str())/2, cury, font, kolor, dst, refrsh);
cury += f->height;
}
delete ws;
}
void printAtMiddle(const std::string & text, int x, int y, TTF_Font * font, SDL_Color kolor, SDL_Surface * dst, unsigned char quality=2, bool refresh=false)
{
if(text.length()==0) return;
SDL_Surface * temp;
switch (quality)
{
case 0:
temp = TTF_RenderText_Solid(font,text.c_str(),kolor);
break;
case 1:
SDL_Color tem;
tem.b = 0xff-kolor.b;
tem.g = 0xff-kolor.g;
tem.r = 0xff-kolor.r;
tem.unused = 0xff-kolor.unused;
temp = TTF_RenderText_Shaded(font,text.c_str(),kolor,tem);
break;
case 2:
temp = TTF_RenderText_Blended(font,text.c_str(),kolor);
break;
default:
temp = TTF_RenderText_Blended(font,text.c_str(),kolor);
break;
}
SDL_BlitSurface(temp,NULL,dst,&genRect(temp->h,temp->w,x-(temp->w/2),y-(temp->h/2)));
if(refresh)
SDL_UpdateRect(dst,x-(temp->w/2),y-(temp->h/2),temp->w,temp->h);
SDL_FreeSurface(temp);
}
void CSDL_Ext::printAtMiddle( const std::string & text, int x, int y, EFonts font, SDL_Color kolor/*=zwykly*/, SDL_Surface * dst/*=screen*/, bool refresh /*= false*/ )
{
if (graphics->fontsTrueType[font])
{
printAtMiddle(text,x, y, graphics->fontsTrueType[font], kolor, dst);
return;
}
const Font *f = graphics->fonts[font];
int nx = x - f->getWidth(text.c_str())/2,
ny = y - f->height/2;
printAt(text, nx, ny, font, kolor, dst, refresh);
}
void printAt(const std::string & text, int x, int y, TTF_Font * font, SDL_Color kolor, SDL_Surface * dst, unsigned char quality=2, bool refresh=false)
{
if (text.length()==0)
return;
SDL_Surface * temp;
switch (quality)
{
case 0:
temp = TTF_RenderText_Solid(font,text.c_str(),kolor);
break;
case 1:
SDL_Color tem;
tem.b = 0xff-kolor.b;
tem.g = 0xff-kolor.g;
tem.r = 0xff-kolor.r;
tem.unused = 0xff-kolor.unused;
temp = TTF_RenderText_Shaded(font,text.c_str(),kolor,tem);
break;
case 2:
temp = TTF_RenderText_Blended(font,text.c_str(),kolor);
break;
default:
temp = TTF_RenderText_Blended(font,text.c_str(),kolor);
break;
}
SDL_BlitSurface(temp,NULL,dst,&genRect(temp->h,temp->w,x,y));
if(refresh)
SDL_UpdateRect(dst,x,y,temp->w,temp->h);
SDL_FreeSurface(temp);
}
void CSDL_Ext::printAt( const std::string & text, int x, int y, EFonts font, SDL_Color kolor/*=zwykly*/, SDL_Surface * dst/*=screen*/, bool refresh /*= false*/ )
{
if(!text.size())
return;
if (graphics->fontsTrueType[font])
{
printAt(text,x, y, graphics->fontsTrueType[font], kolor, dst);
return;
}
assert(dst);
assert(font < Graphics::FONTS_NUMBER);
assert(dst->format->BytesPerPixel == 3 || dst->format->BytesPerPixel == 4); // 24/32 bpp dst only
const Font *f = graphics->fonts[font];
const Uint8 bpp = dst->format->BytesPerPixel;
Uint8 *px = NULL;
Uint8 *src = NULL;
//if text is in {} braces, we'll ommit them
const int first = (text[0] == '{' ? 1 : 0);
const int beyondEnd = (text[text.size()-1] == '}' ? text.size()-1 : text.size());
for(int txti = first; txti < beyondEnd; txti++)
{
const unsigned char c = text[txti];
x += f->chars[c].unknown1;
for(int i = 0; i < f->height && (y + i) < (dst->h - 1); i++)
{
px = (Uint8*)dst->pixels;
px += (y+i) * dst->pitch + x * bpp;
src = f->chars[c].pixels;
src += i * f->chars[c].width;//if we have reached end of surface in previous line
for(int j = 0; j < f->chars[c].width && (j + x) < (dst->w - 1); j++)
{
switch(*src)
{
case 1: //black "shadow"
memset(px, 0, bpp);
break;
case 255: //text colour
px[0] = kolor.b;
px[1] = kolor.g;
px[2] = kolor.r;
break;
}
src++;
px += bpp;
}
}
x += f->chars[c].width;
x += f->chars[c].unknown2;
}
if(refresh)
{
SDL_UpdateRect(dst, x, y, f->getWidth(text.c_str()), f->height);
}
}
void printTo(const std::string & text, int x, int y, TTF_Font * font, SDL_Color kolor, SDL_Surface * dst, unsigned char quality=2)
{
if (text.length()==0)
return;
SDL_Surface * temp;
switch (quality)
{
case 0:
temp = TTF_RenderText_Solid(font,text.c_str(),kolor);
break;
case 1:
SDL_Color tem;
tem.b = 0xff-kolor.b;
tem.g = 0xff-kolor.g;
tem.r = 0xff-kolor.r;
tem.unused = 0xff-kolor.unused;
temp = TTF_RenderText_Shaded(font,text.c_str(),kolor,tem);
break;
case 2:
temp = TTF_RenderText_Blended(font,text.c_str(),kolor);
break;
default:
temp = TTF_RenderText_Blended(font,text.c_str(),kolor);
break;
}
SDL_BlitSurface(temp,NULL,dst,&genRect(temp->h,temp->w,x-temp->w,y-temp->h));
SDL_UpdateRect(dst,x-temp->w,y-temp->h,temp->w,temp->h);
SDL_FreeSurface(temp);
}
void CSDL_Ext::printTo( const std::string & text, int x, int y, EFonts font, SDL_Color kolor/*=zwykly*/, SDL_Surface * dst/*=screen*/, bool refresh /*= false*/ )
{
if (graphics->fontsTrueType[font])
{
printTo(text,x, y, graphics->fontsTrueType[font], kolor, dst);
return;
}
const Font *f = graphics->fonts[font];
printAt(text, x - f->getWidth(text.c_str()), y - f->height, font, kolor, dst, refresh);
}
void printToWR(const std::string & text, int x, int y, TTF_Font * font, SDL_Color kolor, SDL_Surface * dst, unsigned char quality=2)
{
if (text.length()==0)
return;
SDL_Surface * temp;
switch (quality)
{
case 0:
temp = TTF_RenderText_Solid(font,text.c_str(),kolor);
break;
case 1:
SDL_Color tem;
tem.b = 0xff-kolor.b;
tem.g = 0xff-kolor.g;
tem.r = 0xff-kolor.r;
tem.unused = 0xff-kolor.unused;
temp = TTF_RenderText_Shaded(font,text.c_str(),kolor,tem);
break;
case 2:
temp = TTF_RenderText_Blended(font,text.c_str(),kolor);
break;
default:
temp = TTF_RenderText_Blended(font,text.c_str(),kolor);
break;
}
SDL_BlitSurface(temp,NULL,dst,&genRect(temp->h,temp->w,x-temp->w,y-temp->h));
SDL_FreeSurface(temp);
}
void CSDL_Ext::SDL_PutPixel(SDL_Surface *ekran, const int & x, const int & y, const Uint8 & R, const Uint8 & G, const Uint8 & B, Uint8 A)
{
Uint8 *p = (Uint8 *)ekran->pixels + y * ekran->pitch + x * ekran->format->BytesPerPixel;
p[0] = B;
p[1] = G;
p[2] = R;
if(ekran->format->BytesPerPixel==4)
p[3] = A;
SDL_UpdateRect(ekran, x, y, 1, 1);
}
// Vertical flip
SDL_Surface * CSDL_Ext::rotate01(SDL_Surface * toRot)
{
SDL_Surface * ret = SDL_ConvertSurface(toRot, toRot->format, toRot->flags);
const int bpl = ret->pitch;
const int bpp = ret->format->BytesPerPixel;
for(int i=0; i<ret->h; i++) {
char *src = (char *)toRot->pixels + i*bpl;
char *dst = (char *)ret->pixels + i*bpl;
for(int j=0; j<ret->w; j++) {
for (int k=0; k<bpp; k++) {
dst[j*bpp + k] = src[(ret->w-j-1)*bpp + k];
}
}
}
return ret;
}
// Horizontal flip
SDL_Surface * CSDL_Ext::hFlip(SDL_Surface * toRot)
{
SDL_Surface * ret = SDL_ConvertSurface(toRot, toRot->format, toRot->flags);
int bpl = ret->pitch;
for(int i=0; i<ret->h; i++) {
memcpy((char *)ret->pixels + i*bpl, (char *)toRot->pixels + (ret->h-i-1)*bpl, bpl);
}
return ret;
};
///**************/
///Rotates toRot surface by 90 degrees left
///**************/
SDL_Surface * CSDL_Ext::rotate02(SDL_Surface * toRot)
{
SDL_Surface * ret = SDL_ConvertSurface(toRot, toRot->format, toRot->flags);
//SDL_SetColorKey(ret, SDL_SRCCOLORKEY, toRot->format->colorkey);
for(int i=0; i<ret->w; ++i)
{
for(int j=0; j<ret->h; ++j)
{
{
Uint8 *p = (Uint8 *)toRot->pixels + i * toRot->pitch + j * toRot->format->BytesPerPixel;
/*
#if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
SDL_PutPixelWithoutRefresh(ret, i, j, p[0], p[1], p[2]);
#else
*/
SDL_PutPixelWithoutRefresh(ret, i, j, p[2], p[1], p[0]);
//#endif
}
}
}
return ret;
}
///*************/
///Rotates toRot surface by 180 degrees
///*************/
SDL_Surface * CSDL_Ext::rotate03(SDL_Surface * toRot)
{
SDL_Surface * ret = SDL_ConvertSurface(toRot, toRot->format, toRot->flags);
//SDL_SetColorKey(ret, SDL_SRCCOLORKEY, toRot->format->colorkey);
if(ret->format->BytesPerPixel!=1)
{
for(int i=0; i<ret->w; ++i)
{
for(int j=0; j<ret->h; ++j)
{
{
Uint8 *p = (Uint8 *)toRot->pixels + (ret->h - j - 1) * toRot->pitch + (ret->w - i - 1) * toRot->format->BytesPerPixel+2;
/*
#if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
SDL_PutPixelWithoutRefresh(ret, i, j, p[0], p[1], p[2], 0);
#else
*/
SDL_PutPixelWithoutRefresh(ret, i, j, p[2], p[1], p[0], 0);
//#endif
}
}
}
}
else
{
for(int i=0; i<ret->w; ++i)
{
for(int j=0; j<ret->h; ++j)
{
Uint8 *p = (Uint8 *)toRot->pixels + (ret->h - j - 1) * toRot->pitch + (ret->w - i - 1) * toRot->format->BytesPerPixel;
(*((Uint8*)ret->pixels + j*ret->pitch + i*ret->format->BytesPerPixel)) = *p;
}
}
}
return ret;
}
Uint32 CSDL_Ext::SDL_GetPixel(SDL_Surface *surface, const int & x, const int & y, bool colorByte)
{
int bpp = surface->format->BytesPerPixel;
/* Here p is the address to the pixel we want to retrieve */
Uint8 *p = (Uint8 *)surface->pixels + y * surface->pitch + x * bpp;
switch(bpp)
{
case 1:
if(colorByte)
{
return colorToUint32(surface->format->palette->colors+(*p));
}
else
return *p;
case 2:
return *(Uint16 *)p;
case 3:
/*
#if (SDL_BYTEORDER == SDL_BIG_ENDIAN)
return p[0] << 16 | p[1] << 8 | p[2];
#else
*/
return p[0] | p[1] << 8 | p[2] << 16;
//#endif
case 4:
return *(Uint32 *)p;
default:
return 0; // shouldn't happen, but avoids warnings
}
}
void CSDL_Ext::alphaTransform(SDL_Surface *src)
{
assert(src->format->BitsPerPixel == 8);
SDL_Color colors[] = {{0,0,0,255}, {0,0,0,214}, {0,0,0,164}, {0,0,0,82}, {0,0,0,128},
{255,0,0,0}, {255,0,0,0}, {255,0,0,0}, {0,0,0,192}, {0,0,0,192}};
SDL_SetColors(src, colors, 0, ARRAY_COUNT(colors));
SDL_SetColorKey(src, SDL_SRCCOLORKEY, SDL_MapRGBA(src->format, 0, 0, 0, 255));
}
// <=>
static void prepareOutRect(SDL_Rect *src, SDL_Rect *dst, const SDL_Rect & clip_rect)
{
const int xoffset = std::max(clip_rect.x - dst->x, 0),
yoffset = std::max(clip_rect.y - dst->y, 0);
src->x += xoffset;
src->y += yoffset;
dst->x += xoffset;
dst->y += yoffset;
src->w = dst->w = std::max(0,std::min(dst->w - xoffset, clip_rect.x + clip_rect.w - dst->x));
src->h = dst->h = std::max(0,std::min(dst->h - yoffset, clip_rect.y + clip_rect.h - dst->y));
}
void CSDL_Ext::blitWithRotateClip(SDL_Surface *src,SDL_Rect * srcRect, SDL_Surface * dst, SDL_Rect * dstRect, ui8 rotation)//srcRect is not used, works with 8bpp sources and 24bpp dests
{
static void (*blitWithRotate[])(const SDL_Surface *, const SDL_Rect *, SDL_Surface *, const SDL_Rect *) = {blitWithRotate1, blitWithRotate2, blitWithRotate3};
if(!rotation)
{
SDL_BlitSurface(src, srcRect, dst, dstRect);
}
else
{
prepareOutRect(srcRect, dstRect, dst->clip_rect);
blitWithRotate[rotation-1](src, srcRect, dst, dstRect);
}
}
void CSDL_Ext::blitWithRotateClipVal( SDL_Surface *src,SDL_Rect srcRect, SDL_Surface * dst, SDL_Rect dstRect, ui8 rotation )
{
blitWithRotateClip(src, &srcRect, dst, &dstRect, rotation);
}
void CSDL_Ext::blitWithRotateClipWithAlpha(SDL_Surface *src,SDL_Rect * srcRect, SDL_Surface * dst, SDL_Rect * dstRect, ui8 rotation)//srcRect is not used, works with 8bpp sources and 24bpp dests
{
static void (*blitWithRotate[])(const SDL_Surface *, const SDL_Rect *, SDL_Surface *, const SDL_Rect *) = {blitWithRotate1WithAlpha, blitWithRotate2WithAlpha, blitWithRotate3WithAlpha};
if(!rotation)
{
blit8bppAlphaTo24bpp(src, srcRect, dst, dstRect);
}
else
{
prepareOutRect(srcRect, dstRect, dst->clip_rect);
blitWithRotate[rotation-1](src, srcRect, dst, dstRect);
}
}
void CSDL_Ext::blitWithRotateClipValWithAlpha( SDL_Surface *src,SDL_Rect srcRect, SDL_Surface * dst, SDL_Rect dstRect, ui8 rotation )
{
blitWithRotateClipWithAlpha(src, &srcRect, dst, &dstRect, rotation);
}
void CSDL_Ext::blitWithRotate1(const SDL_Surface *src, const SDL_Rect * srcRect, SDL_Surface * dst, const SDL_Rect * dstRect)//srcRect is not used, works with 8bpp sources and 24/32 bpp dests
{
Uint8 *sp = (Uint8 *)src->pixels + srcRect->y*src->pitch + (src->w - srcRect->w - srcRect->x);
const int bpp = dst->format->BytesPerPixel;
Uint8 *dporg = (Uint8 *)dst->pixels + dstRect->y*dst->pitch + (dstRect->x+dstRect->w)*bpp;
const SDL_Color * const colors = src->format->palette->colors;
for(int i=dstRect->h; i>0; i--, dporg += dst->pitch)
{
Uint8 *dp = dporg;
for(int j=dstRect->w; j>0; j--, sp++)
{
if (bpp == 4)
*(--dp) = 0;
const SDL_Color color = colors[*sp];
*(--dp) = color.r;
*(--dp) = color.g;
*(--dp) = color.b;
}
sp += src->w - dstRect->w;
}
}
void CSDL_Ext::blitWithRotate2(const SDL_Surface *src, const SDL_Rect * srcRect, SDL_Surface * dst, const SDL_Rect * dstRect)//srcRect is not used, works with 8bpp sources and 24/32 bpp dests
{
Uint8 *sp = (Uint8 *)src->pixels + (src->h - srcRect->h - srcRect->y)*src->pitch + srcRect->x;
const int bpp = dst->format->BytesPerPixel;
Uint8 *dporg = (Uint8 *)dst->pixels + (dstRect->y + dstRect->h - 1)*dst->pitch + dstRect->x*bpp;
const SDL_Color * const colors = src->format->palette->colors;
for(int i=dstRect->h; i>0; i--, dporg -= dst->pitch)
{
Uint8 *dp = dporg;
for(int j=dstRect->w; j>0; j--, sp++)
{
const SDL_Color color = colors[*sp];
*(dp++) = color.b;
*(dp++) = color.g;
*(dp++) = color.r;
if (bpp == 4)
*(dp++) = 0;
}
sp += src->w - dstRect->w;
}
}
void CSDL_Ext::blitWithRotate3(const SDL_Surface *src, const SDL_Rect * srcRect, SDL_Surface * dst, const SDL_Rect * dstRect)//srcRect is not used, works with 8bpp sources and 24/32 bpp dests
{
Uint8 *sp = (Uint8 *)src->pixels + (src->h - srcRect->h - srcRect->y)*src->pitch + (src->w - srcRect->w - srcRect->x);
const int bpp = dst->format->BytesPerPixel;
Uint8 *dporg = (Uint8 *)dst->pixels +(dstRect->y + dstRect->h - 1)*dst->pitch + (dstRect->x+dstRect->w)*bpp;
const SDL_Color * const colors = src->format->palette->colors;
for(int i=dstRect->h; i>0; i--, dporg -= dst->pitch)
{
Uint8 *dp = dporg;
for(int j=dstRect->w; j>0; j--, sp++)
{
const SDL_Color color = colors[*sp];
if (bpp == 4)
*(--dp) = 0;
*(--dp) = color.r;
*(--dp) = color.g;
*(--dp) = color.b;
}
sp += src->w - dstRect->w;
}
}
void CSDL_Ext::blitWithRotate1WithAlpha(const SDL_Surface *src, const SDL_Rect * srcRect, SDL_Surface * dst, const SDL_Rect * dstRect)//srcRect is not used, works with 8bpp sources and 24/32 bpp dests
{
Uint8 *sp = (Uint8 *)src->pixels + srcRect->y*src->pitch + (src->w - srcRect->w - srcRect->x);
const int bpp = dst->format->BytesPerPixel;
Uint8 *dporg = (Uint8 *)dst->pixels + dstRect->y*dst->pitch + (dstRect->x+dstRect->w)*bpp;
const SDL_Color * const colors = src->format->palette->colors;
for(int i=dstRect->h; i>0; i--, dporg += dst->pitch)
{
Uint8 *dp = dporg;
for(int j=dstRect->w; j>0; j--, sp++)
{
if(*sp)
{
if (bpp == 4)
*(--dp) = 0;
const SDL_Color color = colors[*sp];
*(--dp) = color.r;
*(--dp) = color.g;
*(--dp) = color.b;
}
else
{
dp -= bpp;
}
}
sp += src->w - dstRect->w;
}
}
void CSDL_Ext::blitWithRotate2WithAlpha(const SDL_Surface *src, const SDL_Rect * srcRect, SDL_Surface * dst, const SDL_Rect * dstRect)//srcRect is not used, works with 8bpp sources and 24/32 bpp dests
{
Uint8 *sp = (Uint8 *)src->pixels + (src->h - srcRect->h - srcRect->y)*src->pitch + srcRect->x;
const int bpp = dst->format->BytesPerPixel;
Uint8 *dporg = (Uint8 *)dst->pixels + (dstRect->y + dstRect->h - 1)*dst->pitch + dstRect->x*bpp;
const SDL_Color * const colors = src->format->palette->colors;
for(int i=dstRect->h; i>0; i--, dporg -= dst->pitch)
{
Uint8 *dp = dporg;
for(int j=dstRect->w; j>0; j--, sp++)
{
if(*sp)
{
const SDL_Color color = colors[*sp];
*(dp++) = color.b;
*(dp++) = color.g;
*(dp++) = color.r;
if (bpp == 4)
*(dp++) = 0;
}
else
{
dp += bpp;
}
}
sp += src->w - dstRect->w;
}
}
void CSDL_Ext::blitWithRotate3WithAlpha(const SDL_Surface *src, const SDL_Rect * srcRect, SDL_Surface * dst, const SDL_Rect * dstRect)//srcRect is not used, works with 8bpp sources and 24/32 bpp dests
{
Uint8 *sp = (Uint8 *)src->pixels + (src->h - srcRect->h - srcRect->y)*src->pitch + (src->w - srcRect->w - srcRect->x);
const int bpp = dst->format->BytesPerPixel;
Uint8 *dporg = (Uint8 *)dst->pixels +(dstRect->y + dstRect->h - 1)*dst->pitch + (dstRect->x+dstRect->w)*bpp;
const SDL_Color * const colors = src->format->palette->colors;
for(int i=dstRect->h; i>0; i--, dporg -= dst->pitch)
{
Uint8 *dp = dporg;
for(int j=dstRect->w; j>0; j--, sp++)
{
if(*sp)
{
const SDL_Color color = colors[*sp];
if (bpp == 4)
*(--dp) = 0;
*(--dp) = color.r;
*(--dp) = color.g;
*(--dp) = color.b;
}
else
{
dp -= bpp;
}
}
sp += src->w - dstRect->w;
}
}
int CSDL_Ext::blit8bppAlphaTo24bpp(const SDL_Surface * src, const SDL_Rect * srcRect, SDL_Surface * dst, SDL_Rect * dstRect)
{
const int bpp = dst->format->BytesPerPixel;
if (src && src->format->BytesPerPixel==1 && dst && (bpp==3 || bpp==4)) //everything's ok
{
SDL_Rect fulldst;
int srcx, srcy, w, h;
/* Make sure the surfaces aren't locked */
if ( ! src || ! dst )
{
SDL_SetError("SDL_UpperBlit: passed a NULL surface");
return -1;
}
if ( src->locked || dst->locked )
{
SDL_SetError("Surfaces must not be locked during blit");
return -1;
}
/* If the destination rectangle is NULL, use the entire dest surface */
if ( dstRect == NULL )
{
fulldst.x = fulldst.y = 0;
dstRect = &fulldst;
}
/* clip the source rectangle to the source surface */
if(srcRect)
{
int maxw, maxh;
srcx = srcRect->x;
w = srcRect->w;
if(srcx < 0)
{
w += srcx;
dstRect->x -= srcx;
srcx = 0;
}
maxw = src->w - srcx;
if(maxw < w)
w = maxw;
srcy = srcRect->y;
h = srcRect->h;
if(srcy < 0)
{
h += srcy;
dstRect->y -= srcy;
srcy = 0;
}
maxh = src->h - srcy;
if(maxh < h)
h = maxh;
}
else
{
srcx = srcy = 0;
w = src->w;
h = src->h;
}
/* clip the destination rectangle against the clip rectangle */
{
SDL_Rect *clip = &dst->clip_rect;
int dx, dy;
dx = clip->x - dstRect->x;
if(dx > 0)
{
w -= dx;
dstRect->x += dx;
srcx += dx;
}
dx = dstRect->x + w - clip->x - clip->w;
if(dx > 0)
w -= dx;
dy = clip->y - dstRect->y;
if(dy > 0)
{
h -= dy;
dstRect->y += dy;
srcy += dy;
}
dy = dstRect->y + h - clip->y - clip->h;
if(dy > 0)
h -= dy;
}
if(w > 0 && h > 0)
{
dstRect->w = w;
dstRect->h = h;
if(SDL_LockSurface(dst))
return -1; //if we cannot lock the surface
const SDL_Color *colors = src->format->palette->colors;
Uint8 *colory = (Uint8*)src->pixels + srcy*src->pitch + srcx;
Uint8 *py = (Uint8*)dst->pixels + dstRect->y*dst->pitch + dstRect->x*bpp;
if(dst->format->Rshift==16) //such as screen
{
for(int y=h; y; y--, colory+=src->pitch, py+=dst->pitch)
{
Uint8 *color = colory;
Uint8 *p = py;
for(int x=w; x; x--, p += bpp)
{
const SDL_Color tbc = colors[*color++]; //color to blit
switch (tbc.unused)
{
case 255:
// ~59% of calls
break;
case 0:
// ~37% of calls
p[0] = tbc.b;
p[1] = tbc.g;
p[2] = tbc.r;
break;
case 128: // optimized
// ~3.5% of calls
p[0] = ((Uint16)tbc.b + (Uint16)p[0]) >> 1;
p[1] = ((Uint16)tbc.g + (Uint16)p[1]) >> 1;
p[2] = ((Uint16)tbc.r + (Uint16)p[2]) >> 1;
break;
default:
// ~0.5% of calls
p[0] = ((((Uint32)p[0]-(Uint32)tbc.b)*(Uint32)tbc.unused) >> 8 + (Uint32)tbc.b);
p[1] = ((((Uint32)p[1]-(Uint32)tbc.g)*(Uint32)tbc.unused) >> 8 + (Uint32)tbc.g);
p[2] = ((((Uint32)p[2]-(Uint32)tbc.r)*(Uint32)tbc.unused) >> 8 + (Uint32)tbc.r);
//p[2] = ((Uint32)tbc.unused*(Uint32)p[2] + (Uint32)tbc.r*(Uint32)(255-tbc.unused))>>8; //red
//p[1] = ((Uint32)tbc.unused*(Uint32)p[1] + (Uint32)tbc.g*(Uint32)(255-tbc.unused))>>8; //green
//p[0] = ((Uint32)tbc.unused*(Uint32)p[0] + (Uint32)tbc.b*(Uint32)(255-tbc.unused))>>8; //blue
break;
}
}
}
}
else if(dst->format->Rshift==0) //like in most surfaces
{
for(int y=h; y; y--, colory+=src->pitch, py+=dst->pitch)
{
Uint8 *color = colory;
Uint8 *p = py;
for(int x=w; x; x--, p += bpp)
{
const SDL_Color tbc = colors[*color++]; //color to blit
// According analyze, the values of tbc.unused are fixed,
// and the approximate ratios are as following:
//
// tbc.unused numbers
// 192 2679
// 164 326907
// 82 705590
// 214 1292625
// 128 4842923
// 0 72138078
// 255 77547326
//
// By making use of such characteristic, we may implement a
// very fast algorithm for heroes3 without loose much quality.
switch (tbc.unused)
{
case 255:
break;
case 0:
p[0] = tbc.r;
p[1] = tbc.g;
p[2] = tbc.b;
break;
case 128: // optimized
p[0] = ((Uint16)tbc.r + (Uint16)p[0]) >> 1;
p[1] = ((Uint16)tbc.g + (Uint16)p[1]) >> 1;
p[2] = ((Uint16)tbc.b + (Uint16)p[2]) >> 1;
break;
default:
p[0] = ((((Uint32)p[0]-(Uint32)tbc.r)*(Uint32)tbc.unused) >> 8 + (Uint32)tbc.r);
p[1] = ((((Uint32)p[1]-(Uint32)tbc.g)*(Uint32)tbc.unused) >> 8 + (Uint32)tbc.g);
p[2] = ((((Uint32)p[2]-(Uint32)tbc.b)*(Uint32)tbc.unused) >> 8 + (Uint32)tbc.b);
//p[0] = ((Uint32)tbc.unused*(Uint32)p[0] + (Uint32)tbc.r*(Uint32)(255-tbc.unused))>>8; //red
//p[1] = ((Uint32)tbc.unused*(Uint32)p[1] + (Uint32)tbc.g*(Uint32)(255-tbc.unused))>>8; //green
//p[2] = ((Uint32)tbc.unused*(Uint32)p[2] + (Uint32)tbc.b*(Uint32)(255-tbc.unused))>>8; //blue
break;
}
}
}
}
SDL_UnlockSurface(dst);
}
}
return 0;
}
Uint32 CSDL_Ext::colorToUint32(const SDL_Color * color)
{
Uint32 ret = 0;
ret+=color->unused;
ret<<=8; //*=256
ret+=color->b;
ret<<=8; //*=256
ret+=color->g;
ret<<=8; //*=256
ret+=color->r;
return ret;
}
void CSDL_Ext::update(SDL_Surface * what)
{
if(what)
SDL_UpdateRect(what, 0, 0, what->w, what->h);
}
void CSDL_Ext::drawBorder(SDL_Surface * sur, int x, int y, int w, int h, const int3 &color)
{
for(int i=0;i<w;i++)
{
SDL_PutPixelWithoutRefresh(sur,x+i,y,color.x,color.y,color.z);
SDL_PutPixelWithoutRefresh(sur,x+i,y+h-1,color.x,color.y,color.z);
}
for(int i=0; i<h;i++)
{
SDL_PutPixelWithoutRefresh(sur,x,y+i,color.x,color.y,color.z);
SDL_PutPixelWithoutRefresh(sur,x+w-1,y+i,color.x,color.y,color.z);
}
}
void CSDL_Ext::drawBorder( SDL_Surface * sur, const SDL_Rect &r, const int3 &color )
{
drawBorder(sur, r.x, r.y, r.w, r.h, color);
}
void CSDL_Ext::setPlayerColor(SDL_Surface * sur, unsigned char player)
{
if(player==254)
return;
if(sur->format->BitsPerPixel==8)
{
if(player != 255)
*(sur->format->palette->colors+5) = graphics->playerColors[player];
else
*(sur->format->palette->colors+5) = *graphics->neutralColor;
}
}
int readNormalNr (std::istream &in, int bytCon)
{
int ret=0;
int amp=1;
unsigned char byte;
if (in.good())
{
for (int i=0; i<bytCon; i++)
{
in.read((char*)&byte,1);
ret+=byte*amp;
amp<<=8;
}
}
else return -1;
return ret;
}
std::string CSDL_Ext::processStr(std::string str, std::vector<std::string> & tor)
{
for (size_t i=0; (i<tor.size())&&(boost::find_first(str,"%s")); ++i)
{
boost::replace_first(str,"%s",tor[i]);
}
return str;
}
bool CSDL_Ext::isTransparent( SDL_Surface * srf, int x, int y )
{
if(srf->format->BytesPerPixel == 1)
{
return ((ui8*)srf->pixels)[x + srf->pitch * y] == 0;
}
else
{
assert(!"isTransparent called with non-8bpp surface!");
}
}
SDL_Surface * CSDL_Ext::std32bppSurface = NULL;
Reference in New Issue View Git Blame Copy Permalink