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/*
* $Id: bitmap.c,v 1.4 2005/01/11 17:55:31 lordjaxom Exp $
*/
#include "bitmap.h"
#include "quantize.h"
#include "setup.h"
#include <vdr/tools.h>
#define X_DISPLAY_MISSING
#ifdef HAVE_IMLIB2
#include <Imlib2.h>
#endif
#ifdef HAVE_IMAGEMAGICK
#include <Magick++.h>
using namespace Magick;
#endif
cText2SkinCache cText2SkinBitmap::mCache(Text2SkinSetup.MaxCacheFill);
cText2SkinBitmap *cText2SkinBitmap::Load(const std::string &Filename, int Alpha, int height, int width, int colors) {
tBitmapSpec spec(Filename, Alpha, height, width, colors);
cText2SkinBitmap *res = NULL;
if (mCache.Contains(spec))
res = mCache[spec];
else {
res = new cText2SkinBitmap;
int len = Filename.length();
bool result = false;
if (len > 4) {
if (Filename.substr(len - 4, 4) == ".xpm")
result = res->LoadXpm(Filename.c_str());
else {
#ifdef HAVE_IMLIB2
result = res->LoadImlib(Filename.c_str(),height,width,colors, false);
#else
# ifdef HAVE_IMAGEMAGICK
result = res->LoadMagick(Filename.c_str(),height,width,colors, false);
# else
esyslog("ERROR: text2skin: unknown file format for %s", Filename);
# endif
#endif
}
} else
esyslog("ERROR: text2skin: filename %s too short to identify format", Filename.c_str());
if (result) {
res->SetAlpha(Alpha);
mCache[spec] = res;
} else
DELETENULL(res);
}
return res;
}
bool cText2SkinBitmap::Available(const std::string &Filename)
{
bool res = false;
if (mCache.Contains(Filename))
res = true;
else {
cText2SkinBitmap *bmp = new cText2SkinBitmap;
int len = Filename.length();
if (len > 4) {
if (Filename.substr(len - 4, 4) == ".xpm")
res = bmp->LoadXpm(Filename.c_str());
else {
#ifdef HAVE_IMLIB2
res = bmp->LoadImlib(Filename.c_str(), 0, 0, 0, true);
#else
# ifdef HAVE_IMAGEMAGICK
res = bmp->LoadMagick(Filename.c_str(), 0, 0, 0, true);
# endif
#endif
}
}
delete bmp;
}
return res;
}
cText2SkinBitmap::cText2SkinBitmap(void) {
mCurrent = 0;
mLastGet = 0;
}
cText2SkinBitmap::~cText2SkinBitmap() {
for (int i = 0; i < (int)mBitmaps.size(); ++i)
delete mBitmaps[i];
mBitmaps.clear();
}
cBitmap &cText2SkinBitmap::Get(uint &UpdateIn, uint Now) {
if (mBitmaps.size() == 1)
return *mBitmaps[0];
time_t upd;
int diff;
if (mLastGet == 0) {
mLastGet = Now;
upd = mDelay;
} else if ((diff = Now - mLastGet) >= mDelay) {
mCurrent = (mCurrent + 1) % mBitmaps.size();
mLastGet = Now;
upd = mDelay - diff > 1 ? mDelay - diff : 1;
} else {
upd = mDelay - diff;
}
if (UpdateIn == 0 || UpdateIn > (uint)upd)
UpdateIn = upd;
return *mBitmaps[mCurrent];
}
void cText2SkinBitmap::SetAlpha(int Alpha) {
if (Alpha > 0) {
std::vector<cBitmap*>::iterator it = mBitmaps.begin();
for (; it != mBitmaps.end(); ++it) {
int count;
if ((*it)->Colors(count)) {
for (int i = 0; i < count; ++i) {
int alpha = (((*it)->Color(i) & 0xFF000000) >> 24) * Alpha / 255;
(*it)->SetColor(i, ((*it)->Color(i) & 0x00FFFFFF) | (alpha << 24));
}
}
}
}
}
bool cText2SkinBitmap::LoadXpm(const char *Filename) {
cBitmap *bmp = new cBitmap(1,1,1);
if (bmp->LoadXpm(Filename)) {
mBitmaps.push_back(bmp);
return true;
}
delete bmp;
return false;
}
#ifdef HAVE_IMLIB2
bool cText2SkinBitmap::LoadImlib(const char *Filename, int height, int width, int colors, bool Quiet) {
Imlib_Image image;
unsigned char * outputImage = NULL;
unsigned int * outputPalette = NULL;
cQuantizeWu* quantizer = new cQuantizeWu();
cBitmap *bmp = NULL;
image = imlib_load_image(Filename);
if (!image)
return false;
Imlib_Context ctx = imlib_context_new();
imlib_context_push(ctx);
if (height != 0 || width != 0){
imlib_context_set_image(image);
image = imlib_create_cropped_scaled_image(0,0,imlib_image_get_width(), imlib_image_get_height() ,width , height);
}
imlib_context_set_image(image);
bmp = new cBitmap(imlib_image_get_width(), imlib_image_get_height(), 8);
uint8_t *data = (uint8_t*)imlib_image_get_data_for_reading_only();
if ( colors != 0 ){
quantizer->Quantize(data, imlib_image_get_width()* imlib_image_get_height(), colors);
outputImage = quantizer->OutputImage();
outputPalette = quantizer->OutputPalette();
}
int pos = 0;
for (int y = 0; y < bmp->Height(); ++y) {
for (int x = 0; x < bmp->Width(); ++x) {
if ( colors != 0 ){
bmp->DrawPixel(x, y , outputPalette[outputImage[y * bmp->Width() + x]] | 0xFF000000 );
}else{
tColor col = (data[pos + 3] << 24) | (data[pos + 2] << 16) | (data[pos + 1] << 8) | data[pos + 0];
bmp->DrawPixel(x, y, col);
pos += 4;
}
}
}
imlib_free_image();
imlib_context_free(ctx);
mBitmaps.push_back(bmp);
delete(quantizer);
return true;
}
#endif
#ifdef HAVE_IMAGEMAGICK
bool cText2SkinBitmap::LoadMagick(const char *Filename, int height, int width, int colors, bool Quiet) {
std::vector<Image> images;
cBitmap *bmp = NULL;
try {
int w, h;
std::vector<Image>::iterator it;
readImages(&images, Filename);
if (images.size() == 0) {
esyslog("ERROR: text2skin: Couldn't load %s", Filename);
return false;
}
mDelay = images[0].animationDelay() * 10;
for (it = images.begin(); it != images.end(); ++it) {
if (colors != 0){
(*it).opacity(OpaqueOpacity);
(*it).backgroundColor( Color ( 0,0,0,0) );
(*it).quantizeColorSpace( RGBColorspace );
(*it).quantizeColors( colors );
(*it).quantize();
}
if (height != 0 || width != 0)
(*it).sample(Geometry(width,height));
w = (*it).columns();
h = (*it).rows();
if ((*it).depth() > 8) {
esyslog("ERROR: text2skin: More than 8bpp images are not supported");
return false;
}
bmp = new cBitmap(w, h, (*it).depth());
//Dprintf("this image has %d colors\n", (*it).totalColors());
const PixelPacket *pix = (*it).getConstPixels(0, 0, w, h);
for (int iy = 0; iy < h; ++iy) {
for (int ix = 0; ix < w; ++ix) {
tColor col = (~(pix->opacity * 255 / MaxRGB) << 24) | ((pix->red * 255 / MaxRGB) << 16) | ((pix->green * 255 / MaxRGB) << 8) | (pix->blue * 255 / MaxRGB);
bmp->DrawPixel(ix, iy, col);
++pix;
}
}
mBitmaps.push_back(bmp);
}
} catch (Exception &e) {
if (!Quiet)
esyslog("ERROR: text2skin: Couldn't load %s: %s", Filename, e.what());
delete bmp;
return false;
} catch (...) {
if (!Quiet)
esyslog("ERROR: text2skin: Couldn't load %s: Unknown exception caught", Filename);
delete bmp;
return false;
}
return true;
}
#endif
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