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trunk: Implemented file loading of JPEG, TGA, TIFF and a few others, by using SDL_Image builtin loader. Added visible 'hourglass' cursor during 24bit color reduction.

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git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1085 416bcca6-2ee7-4201-b75f-2eb2f807beb1
This commit is contained in:
Yves Rizoud
2009-10-21 22:12:56 +00:00
parent 9ef0e6b74c
commit db130fc60d
12 changed files with 278 additions and 108 deletions
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41
sdlscreen.c
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@@ -139,10 +139,11 @@ void Update_rect(short x, short y, unsigned short width, unsigned short height)
}
// Converts a SDL_Surface (indexed colors or RGB) into an array of bytes
// (indexed colors).
// If dest is NULL, it's allocated by malloc(). Otherwise, be sure to
// pass a buffer of the right dimensions.
///
/// Converts a SDL_Surface (indexed colors or RGB) into an array of bytes
/// (indexed colors).
/// If dest is NULL, it's allocated by malloc(). Otherwise, be sure to
/// pass a buffer of the right dimensions.
byte * Surface_to_bytefield(SDL_Surface *source, byte * dest)
{
byte *src;
@@ -185,13 +186,41 @@ SDL_Color Color_to_SDL_color(byte index)
return color;
}
// Reads a pixel in a SDL surface.
// Warning, this is only suitable for 8-bit surfaces.
/// Reads a pixel in a 8-bit SDL surface.
byte Get_SDL_pixel_8(SDL_Surface *bmp, int x, int y)
{
return ((byte *)(bmp->pixels))[(y*bmp->pitch+x)];
}
/// Reads a pixel in a multi-byte SDL surface.
dword Get_SDL_pixel_hicolor(SDL_Surface *bmp, int x, int y)
{
switch(bmp->format->BytesPerPixel)
{
case 4:
default:
return *((dword *)((byte *)bmp->pixels+(y*bmp->pitch+x*4)));
case 3:
return *(((dword *)((byte *)bmp->pixels+(y*bmp->pitch+x*3)))) & 0xFFFFFF;
case 2:
return *((word *)((byte *)bmp->pixels+(y*bmp->pitch+x*2)));
}
}
/// Convert a SDL Palette to a grafx2 palette
void Get_SDL_Palette(const SDL_Palette * sdl_palette, T_Palette palette)
{
int i;
for (i=0; i<256; i++)
{
palette[i].R=sdl_palette->colors[i].r;
palette[i].G=sdl_palette->colors[i].g;
palette[i].B=sdl_palette->colors[i].b;
}
}
void Clear_border(byte color)
{
int width;