//===========================================================================
//
// True Color texture copy function
// This excludes all the cases that force downconversion to the
// base palette because they wouldn't be used anyway.
//
//===========================================================================
void FGLBitmap::CopyPixelDataRGB(int originx, int originy,
const uint8_t * patch, int srcwidth, int srcheight, int step_x, int step_y,
int rotate, int ct, FCopyInfo *inf, int r, int g, int b)
{
if (ClipCopyPixelRect(&ClipRect, originx, originy, patch, srcwidth, srcheight, step_x, step_y, rotate))
{
uint8_t *buffer = GetPixels() + 4*originx + Pitch*originy;
for (int y=0;y<srcheight;y++)
{
copyfuncs[ct](&buffer[y*Pitch], &patch[y*step_y], srcwidth, step_x, (uint8_t)r, (uint8_t)g, (uint8_t)b);
}
}
}
//===========================================================================
//
// Paletted to True Color texture copy function
//
//===========================================================================
void FGLBitmap::CopyPixelData(int originx, int originy, const uint8_t * patch, int srcwidth, int srcheight,
int step_x, int step_y, int rotate, PalEntry * palette, FCopyInfo *inf)
{
PalEntry penew[256];
int x,y,pos,i;
if (ClipCopyPixelRect(&ClipRect, originx, originy, patch, srcwidth, srcheight, step_x, step_y, rotate))
{
uint8_t *buffer = GetPixels() + 4*originx + Pitch*originy;
if (translation > 0)
{
PalEntry *ptrans = GLTranslationPalette::GetPalette(translation);
if (ptrans && !alphatrans)
{
for (i = 0; i < 256; i++)
{
penew[i] = (ptrans[i] & 0xffffff) | (palette[i] & 0xff000000);
}
}
else if (ptrans)
{
memcpy(penew, ptrans, 256 * sizeof(PalEntry));
}
}
else
{
memcpy(penew, palette, 256*sizeof(PalEntry));
}
// convert the image according to the translated palette.
for (y=0;y<srcheight;y++)
{
pos=(y*Pitch);
for (x=0;x<srcwidth;x++,pos+=4)
{
int v=(unsigned char)patch[y*step_y+x*step_x];
if (penew[v].a!=0)
{
buffer[pos] = penew[v].r;
buffer[pos+1] = penew[v].g;
buffer[pos+2] = penew[v].b;
buffer[pos+3] = penew[v].a;
}
}
}
}
}
void FMultiPatchTexture::CopyToBlock(uint8_t *dest, int dwidth, int dheight, FImageSource *source, int xpos, int ypos, int rotate, const uint8_t *translation, int style)
{
auto cimage = source->GetCachedPalettedPixels(style); // should use composition cache
auto &image = cimage.Pixels;
const uint8_t *pixels = image.Data();
int srcwidth = source->GetWidth();
int srcheight = source->GetHeight();
int step_x = source->GetHeight();
int step_y = 1;
FClipRect cr = { 0, 0, dwidth, dheight };
if (style) translation = nullptr; // do not apply translations to alpha textures.
if (ClipCopyPixelRect(&cr, xpos, ypos, pixels, srcwidth, srcheight, step_x, step_y, rotate))
{
dest += ypos + dheight * xpos;
if (translation == NULL)
{
for (int x = 0; x < srcwidth; x++)
{
int pos = x * dheight;
for (int y = 0; y < srcheight; y++, pos++)
{
// the optimizer is doing a good enough job here so there's no need to optimize this by hand
uint8_t v = pixels[y * step_y + x * step_x];
if (v != 0) dest[pos] = v;
}
}
}
else
{
for (int x = 0; x < srcwidth; x++)
{
int pos = x * dheight;
for (int y = 0; y < srcheight; y++, pos++)
{
uint8_t v = pixels[y * step_y + x * step_x];
if (v != 0) dest[pos] = translation[v];
}
}
}
}
}
void FTexture::CopyToBlock (BYTE *dest, int dwidth, int dheight, int xpos, int ypos, int rotate, const BYTE *translation)
{
const BYTE *pixels = GetPixels();
int srcwidth = Width;
int srcheight = Height;
int step_x = Height;
int step_y = 1;
FClipRect cr = {0, 0, dwidth, dheight};
if (ClipCopyPixelRect(&cr, xpos, ypos, pixels, srcwidth, srcheight, step_x, step_y, rotate))
{
dest += ypos + dheight * xpos;
if (translation == NULL)
{
for (int x = 0; x < srcwidth; x++)
{
int pos = x * dheight;
for (int y = 0; y < srcheight; y++, pos++)
{
// the optimizer is doing a good enough job here so there's no need to optimize this by hand
BYTE v = pixels[y * step_y + x * step_x];
if (v != 0) dest[pos] = v;
}
}
}
else
{
for (int x = 0; x < srcwidth; x++)
{
int pos = x * dheight;
for (int y = 0; y < srcheight; y++, pos++)
{
BYTE v = pixels[y * step_y + x * step_x];
if (v != 0) dest[pos] = translation[v];
}
}
}
}
}
