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Code Issues Releases Activity

* reverting prevoius revisiom

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* minor changes
This commit is contained in:
mateuszb
2010-08-17 12:48:34 +00:00
parent 5615d1709a
commit c96dab5c7e
32 changed files with 69 additions and 795 deletions
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67
client/SDL_Extensions.cpp
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@ -1209,4 +1209,71 @@ BlitterWithRotationVal CSDL_Ext::getBlitterWithRotationAndAlpha(SDL_Surface *des
return NULL;
}
void CSDL_Ext::applyEffect( SDL_Surface * surf, const SDL_Rect * rect, int mode )
{
switch(mode)
{
case 0: //sepia
{
const int sepiaDepth = 20;
const int sepiaIntensity = 30;
for(int xp = rect->x; xp < rect->x + rect->w; ++xp)
{
for(int yp = rect->y; yp < rect->y + rect->h; ++yp)
{
unsigned char * pixels = (unsigned char*)surf->pixels + yp * surf->pitch + xp * surf->format->BytesPerPixel;
int b = pixels[0];
int g = pixels[1];
int r = pixels[2];
int gry = (r + g + b) / 3;
r = g = b = gry;
r = r + (sepiaDepth * 2);
g = g + sepiaDepth;
if (r>255) r=255;
if (g>255) g=255;
if (b>255) b=255;
// Darken blue color to increase sepia effect
b -= sepiaIntensity;
// normalize if out of bounds
if (b<0) b=0;
if (b>255) b=255;
pixels[0] = b;
pixels[1] = g;
pixels[2] = r;
}
}
}
break;
case 1: //grayscale
{
for(int xp = rect->x; xp < rect->x + rect->w; ++xp)
{
for(int yp = rect->y; yp < rect->y + rect->h; ++yp)
{
unsigned char * pixels = (unsigned char*)surf->pixels + yp * surf->pitch + xp * surf->format->BytesPerPixel;
int b = pixels[0];
int g = pixels[1];
int r = pixels[2];
int gry = (r + g + b) / 3;
pixels[0] = pixels[1] = pixels[2] = gry;
}
}
}
break;
default:
throw std::string("Unsuppoerted efftct!");
}
}
SDL_Surface * CSDL_Ext::std32bppSurface = NULL;