/**
Performs a 5 by 5 gaussian filtering using two 1D convolutions,
followed by a subsampling by 2.
@param dib Input image
@return Returns a blurred image of size SIZE(dib)/2
@see GaussianPyramid
*/
static FIBITMAP* GaussianLevel5x5(FIBITMAP *dib) {
FIBITMAP *h_dib = NULL, *v_dib = NULL, *dst = NULL;
float *src_pixel, *dst_pixel;
try {
const FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(dib);
if(image_type != FIT_FLOAT) throw(1);
const unsigned width = FreeImage_GetWidth(dib);
const unsigned height = FreeImage_GetHeight(dib);
h_dib = FreeImage_AllocateT(image_type, width, height);
v_dib = FreeImage_AllocateT(image_type, width, height);
if(!h_dib || !v_dib) throw(1);
const unsigned pitch = FreeImage_GetPitch(dib) / sizeof(float);
// horizontal convolution dib -> h_dib
src_pixel = (float*)FreeImage_GetBits(dib);
dst_pixel = (float*)FreeImage_GetBits(h_dib);
for(unsigned y = 0; y < height; y++) {
// work on line y
for(unsigned x = 2; x < width - 2; x++) {
dst_pixel[x] = src_pixel[x-2] + src_pixel[x+2] + 4 * (src_pixel[x-1] + src_pixel[x+1]) + 6 * src_pixel[x];
dst_pixel[x] /= 16;
}
// boundary mirroring
dst_pixel[0] = (2 * src_pixel[2] + 8 * src_pixel[1] + 6 * src_pixel[0]) / 16;
dst_pixel[1] = (src_pixel[3] + 4 * (src_pixel[0] + src_pixel[2]) + 7 * src_pixel[1]) / 16;
dst_pixel[width-2] = (src_pixel[width-4] + 5 * src_pixel[width-1] + 4 * src_pixel[width-3] + 6 * src_pixel[width-2]) / 16;
dst_pixel[width-1] = (src_pixel[width-3] + 5 * src_pixel[width-2] + 10 * src_pixel[width-1]) / 16;
// next line
src_pixel += pitch;
dst_pixel += pitch;
}
// vertical convolution h_dib -> v_dib
src_pixel = (float*)FreeImage_GetBits(h_dib);
dst_pixel = (float*)FreeImage_GetBits(v_dib);
for(unsigned x = 0; x < width; x++) {
// work on column x
for(unsigned y = 2; y < height - 2; y++) {
const unsigned index = y*pitch + x;
dst_pixel[index] = src_pixel[index-2*pitch] + src_pixel[index+2*pitch] + 4 * (src_pixel[index-pitch] + src_pixel[index+pitch]) + 6 * src_pixel[index];
dst_pixel[index] /= 16;
}
// boundary mirroring
dst_pixel[x] = (2 * src_pixel[x+2*pitch] + 8 * src_pixel[x+pitch] + 6 * src_pixel[x]) / 16;
dst_pixel[x+pitch] = (src_pixel[x+3*pitch] + 4 * (src_pixel[x] + src_pixel[x+2*pitch]) + 7 * src_pixel[x+pitch]) / 16;
dst_pixel[(height-2)*pitch+x] = (src_pixel[(height-4)*pitch+x] + 5 * src_pixel[(height-1)*pitch+x] + 4 * src_pixel[(height-3)*pitch+x] + 6 * src_pixel[(height-2)*pitch+x]) / 16;
dst_pixel[(height-1)*pitch+x] = (src_pixel[(height-3)*pitch+x] + 5 * src_pixel[(height-2)*pitch+x] + 10 * src_pixel[(height-1)*pitch+x]) / 16;
}
FreeImage_Unload(h_dib); h_dib = NULL;
// perform downsampling
dst = FreeImage_Rescale(v_dib, width/2, height/2, FILTER_BILINEAR);
FreeImage_Unload(v_dib);
return dst;
} catch(int) {
if(h_dib) FreeImage_Unload(h_dib);
if(v_dib) FreeImage_Unload(v_dib);
if(dst) FreeImage_Unload(dst);
return NULL;
}
}
FIBITMAP * DLL_CALLCONV
FreeImage_MakeThumbnail(FIBITMAP *dib, int max_pixel_size, BOOL convert) {
FIBITMAP *thumbnail = NULL;
int new_width, new_height;
if(!FreeImage_HasPixels(dib) || (max_pixel_size <= 0)) return NULL;
int width = FreeImage_GetWidth(dib);
int height = FreeImage_GetHeight(dib);
if(max_pixel_size == 0) max_pixel_size = 1;
if((width < max_pixel_size) && (height < max_pixel_size)) {
// image is smaller than the requested thumbnail
return FreeImage_Clone(dib);
}
if(width > height) {
new_width = max_pixel_size;
// change image height with the same ratio
double ratio = ((double)new_width / (double)width);
new_height = (int)(height * ratio + 0.5);
if(new_height == 0) new_height = 1;
} else {
new_height = max_pixel_size;
// change image width with the same ratio
double ratio = ((double)new_height / (double)height);
new_width = (int)(width * ratio + 0.5);
if(new_width == 0) new_width = 1;
}
const FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(dib);
// perform downsampling using a bilinear interpolation
switch(image_type) {
case FIT_BITMAP:
case FIT_UINT16:
case FIT_RGB16:
case FIT_RGBA16:
case FIT_FLOAT:
case FIT_RGBF:
case FIT_RGBAF:
{
FREE_IMAGE_FILTER filter = FILTER_BILINEAR;
thumbnail = FreeImage_Rescale(dib, new_width, new_height, filter);
}
break;
case FIT_INT16:
case FIT_UINT32:
case FIT_INT32:
case FIT_DOUBLE:
case FIT_COMPLEX:
default:
// cannot rescale this kind of image
thumbnail = NULL;
break;
}
if((thumbnail != NULL) && (image_type != FIT_BITMAP) && convert) {
// convert to a standard bitmap
FIBITMAP *bitmap = NULL;
switch((int)image_type) {
case FIT_UINT16:
bitmap = FreeImage_ConvertTo8Bits(thumbnail);
break;
case FIT_RGB16:
bitmap = FreeImage_ConvertTo24Bits(thumbnail);
break;
case FIT_RGBA16:
bitmap = FreeImage_ConvertTo32Bits(thumbnail);
break;
case FIT_FLOAT:
bitmap = FreeImage_ConvertToStandardType(thumbnail, TRUE);
break;
case FIT_RGBF:
bitmap = FreeImage_ToneMapping(thumbnail, FITMO_DRAGO03);
break;
case FIT_RGBAF:
// no way to keep the transparency yet ...
FIBITMAP *rgbf = FreeImage_ConvertToRGBF(thumbnail);
bitmap = FreeImage_ToneMapping(rgbf, FITMO_DRAGO03);
FreeImage_Unload(rgbf);
break;
}
if(bitmap != NULL) {
FreeImage_Unload(thumbnail);
thumbnail = bitmap;
}
}
// copy metadata from src to dst
FreeImage_CloneMetadata(thumbnail, dib);
return thumbnail;
}
void clBitmap::Rescale( int NewW, int NewH )
{
FreeImage_Rescale( clPtr<clBitmap>( this ), NewW, NewH );
}
/**
Compute the gradient attenuation function PHI(x, y)
@param gradients Gradient pyramid (nlevels levels)
@param avgGrad Average gradient on each level (array of size nlevels)
@param nlevels Number of levels
@param alpha Parameter alpha in the paper
@param beta Parameter beta in the paper
@return Returns the attenuation matrix Phi if successful, returns NULL otherwise
*/
static FIBITMAP* PhiMatrix(FIBITMAP **gradients, float *avgGrad, int nlevels, float alpha, float beta) {
float *src_pixel, *dst_pixel;
FIBITMAP **phi = NULL;
try {
phi = (FIBITMAP**)malloc(nlevels * sizeof(FIBITMAP*));
if(!phi) throw(1);
memset(phi, 0, nlevels * sizeof(FIBITMAP*));
for(int k = nlevels-1; k >= 0; k--) {
// compute phi(k)
FIBITMAP *Gk = gradients[k];
const unsigned width = FreeImage_GetWidth(Gk);
const unsigned height = FreeImage_GetHeight(Gk);
const unsigned pitch = FreeImage_GetPitch(Gk) / sizeof(float);
// parameter alpha is 0.1 times the average gradient magnitude
// also, note the factor of 2**k in the denominator;
// that is there to correct for the fact that an average gradient avgGrad(H) over 2**k pixels
// in the original image will appear as a gradient grad(Hk) = 2**k*avgGrad(H) over a single pixel in Hk.
float ALPHA = alpha * avgGrad[k] * (float)((int)1 << k);
if(ALPHA == 0) ALPHA = EPSILON;
phi[k] = FreeImage_AllocateT(FIT_FLOAT, width, height);
if(!phi[k]) throw(1);
src_pixel = (float*)FreeImage_GetBits(Gk);
dst_pixel = (float*)FreeImage_GetBits(phi[k]);
for(unsigned y = 0; y < height; y++) {
for(unsigned x = 0; x < width; x++) {
// compute (alpha / grad) * (grad / alpha) ** beta
const float v = src_pixel[x] / ALPHA;
const float value = (float)pow((float)v, (float)(beta-1));
dst_pixel[x] = (value > 1) ? 1 : value;
}
// next line
src_pixel += pitch;
dst_pixel += pitch;
}
if(k < nlevels-1) {
// compute PHI(k) = L( PHI(k+1) ) * phi(k)
FIBITMAP *L = FreeImage_Rescale(phi[k+1], width, height, FILTER_BILINEAR);
if(!L) throw(1);
src_pixel = (float*)FreeImage_GetBits(L);
dst_pixel = (float*)FreeImage_GetBits(phi[k]);
for(unsigned y = 0; y < height; y++) {
for(unsigned x = 0; x < width; x++) {
dst_pixel[x] *= src_pixel[x];
}
// next line
src_pixel += pitch;
dst_pixel += pitch;
}
FreeImage_Unload(L);
// PHI(k+1) is no longer needed
FreeImage_Unload(phi[k+1]);
phi[k+1] = NULL;
}
// next level
}
// get the final result and return
FIBITMAP *dst = phi[0];
free(phi);
return dst;
} catch(int) {
if(phi) {
for(int k = nlevels-1; k >= 0; k--) {
if(phi[k]) FreeImage_Unload(phi[k]);
}
free(phi);
}
return NULL;
}
}
void FreeImage::_updateSize() {
FIBITMAP * resizedImage = FreeImage_Rescale( this -> freeImage, this -> size.x, this -> size.y, ( FREE_IMAGE_FILTER ) this -> resampleFilter );
FreeImage_Unload( freeImage );
freeImage = resizedImage;
this -> stride = FreeImage_GetPitch( this -> freeImage );
}
MOboolean
moTextureBuffer::LoadImage( moText p_ImageName, moBitmap* pImage, int indeximage ) {
MOboolean res = false;
FIBITMAP* _pImage = (FIBITMAP*)pImage;
FIBITMAP* pImageResult = NULL;
FIBITMAP* pImageCropped = NULL;
FIBITMAP* pImageScaled = NULL;
/*
if ( m_width!=FreeImage_GetWidth(_pImage) || m_height!=FreeImage_GetHeight(_pImage) ) {
//CROP MODE
pImageCropped = FreeImage_Copy( _pImage, m_XSource , m_YSource , m_XSource + m_SourceWidth , m_YSource+m_SourceHeight );
pImageResult = pImageCropped;
} else
*/
pImageResult = _pImage;
int w, h;
if ( ( FreeImage_GetWidth(_pImage) % 4 ) != 0 || ( FreeImage_GetHeight(_pImage) % 4) == 0 ) {
w = FreeImage_GetWidth(_pImage) / 4;
w = w * 4;
h = FreeImage_GetHeight(_pImage) / 4;
h = h * 4;
pImageScaled = FreeImage_Rescale( pImageResult, w, h, FILTER_BICUBIC );
if (pImageScaled) {
//FreeImage_Unload(pImageResult);
pImageResult = pImageScaled;
}
}
FreeImage_AdjustContrast( pImageResult, 0 );
FreeImage_AdjustBrightness( pImageResult, 0 );
//RESCALE: NOTE NECESARRY HERE
//quizas podamos definir un máximo para el tamaño tanto ancho como alto
//o como proporción
//forzar proporcion y esas cosas....
/*
if ( m_width != m_SourceWidth || m_height != m_SourceHeight ) {
//FILTER_BOX Box, pulse, Fourier window, 1st order (constant) B-Spline
//FILTER_BILINEAR Bilinear filter
//FILTER_BSPLINE 4th order (cubic) B-Spline
//FILTER_BICUBIC Mitchell and Netravali's two-param cubic filter
//FILTER_CATMULLROM Catmull-Rom spline, Overhauser spline
//FILTER_LANCZOS3
pImageScaled = FreeImage_Rescale( pImageResult, m_width, m_height, FILTER_BICUBIC );
if (pImageScaled) {
FreeImage_Unload(pImageResult);
pImageResult = pImageScaled;
}
}
*/
moTextureMemory* pTextureMemory = NULL;
int idx = m_pResourceManager->GetTextureMan()->AddTexture( MO_TYPE_TEXTUREMEMORY, p_ImageName );
if (idx>-1) {
pTextureMemory = (moTextureMemory*) m_pResourceManager->GetTextureMan()->GetTexture(idx);
if (pTextureMemory) {
if (pTextureMemory->BuildFromBitmap( pImageResult, m_BufferFormat )) {
m_Frames.Add(pTextureMemory);
int contrastlevel = pTextureMemory->GetContrast() / 2000;
int luminancelevel = (int)((float)pTextureMemory->GetLuminance() / (float)2.56 ) - 1;
MODebug2->Message( moText("moTextureBuffer::LoadImage success : ") + (moText)pTextureMemory->GetName());
#ifdef _DEBUG
MODebug2->Message( moText("moTextureBuffer::LoadImage success : ") + (moText)pTextureMemory->GetName()
+ moText(" width:") + IntToStr(pTextureMemory->GetWidth())
+ moText(" height:") + IntToStr(pTextureMemory->GetHeight())
+ moText(" luminance:") + IntToStr(pTextureMemory->GetLuminance())
+ moText(" luminancelevel:") + IntToStr(luminancelevel) +
+ moText(" contrast:") + IntToStr(pTextureMemory->GetContrast())
+ moText(" contrastlevel:") + IntToStr(contrastlevel) );
#endif
contrastlevel = 0;
if (luminancelevel>=100) {
MODebug2->Error( moText("moTextureBuffer::LoadImage Error: luminance out of bound:")+ IntToStr(pTextureMemory->GetLuminance()) );
} else {
if (max_luminance<luminancelevel) {
max_luminance = luminancelevel;
} else if (min_luminance>luminancelevel) {
min_luminance = luminancelevel;
}
}
if (contrastlevel>=10) {
MODebug2->Error( moText("moTextureBuffer::LoadImage Error: contrast out of bound:")+ IntToStr(pTextureMemory->GetContrast()) );
}
if (0<=luminancelevel && luminancelevel<100 && 0<=contrastlevel && contrastlevel<10) {
m_pBufferLevels[luminancelevel][contrastlevel].Add( pTextureMemory );
int icc = momin( m_pBufferLevels[luminancelevel][contrastlevel].Count(), 99 );
LevelDiagram[ (luminancelevel + icc*100)*3 ] = 250;
LevelDiagram[ (luminancelevel+1 + icc*100)*3 ] = 250;
LevelDiagram[ (luminancelevel+2 + icc*100)*3 ] = 250;
}
res = true;
} else {
res = false;
MODebug2->Error( moText("moTextureBuffer::LoadImage Error loading image:")+(moText)pTextureMemory->GetName());
}
}
}
if (pImageResult!=_pImage)
FreeImage_Unload(pImageResult);
//m_nFrames = m_Frames.Count();
//m_fFramesPerSecond = 25.0;
return (res);
}
static struct graphics_image_priv *
image_new(struct graphics_priv *gr, struct graphics_image_methods *meth,
char *path, int *w, int *h, struct point *hot, int rotation)
{
#if USE_FREEIMAGE
FIBITMAP *image;
RGBQUAD aPixel;
unsigned char *data;
int width, height, i, j;
struct graphics_image_priv *gi;
//check if image already exists in hashmap
struct graphics_image_priv *curr_elem =
g_hash_table_lookup(hImageData, path);
if (curr_elem == &image_error) {
//found but couldn't be loaded
return NULL;
} else if (curr_elem) {
//found and OK -> use hastable entry
*w = curr_elem->w;
*h = curr_elem->h;
hot->x = curr_elem->w / 2 - 1;
hot->y = curr_elem->h / 2 - 1;
return curr_elem;
} else {
if (strlen(path) < 4) {
g_hash_table_insert(hImageData, g_strdup(path),
&image_error);
return NULL;
}
char *ext_str = path + strlen(path) - 3;
if (strstr(ext_str, "png") || strstr(path, "PNG")) {
if ((image =
FreeImage_Load(FIF_PNG, path, 0)) == NULL) {
g_hash_table_insert(hImageData,
g_strdup(path),
&image_error);
return NULL;
}
} else if (strstr(ext_str, "xpm") || strstr(path, "XPM")) {
if ((image =
FreeImage_Load(FIF_XPM, path, 0)) == NULL) {
g_hash_table_insert(hImageData,
g_strdup(path),
&image_error);
return NULL;
}
} else if (strstr(ext_str, "svg") || strstr(path, "SVG")) {
char path_new[256];
snprintf(path_new, strlen(path) - 3, "%s", path);
strcat(path_new, "_48_48.png");
if ((image =
FreeImage_Load(FIF_PNG, path_new,
0)) == NULL) {
g_hash_table_insert(hImageData,
g_strdup(path),
&image_error);
return NULL;
}
} else {
g_hash_table_insert(hImageData, g_strdup(path),
&image_error);
return NULL;
}
if (FreeImage_GetBPP(image) == 64) {
FIBITMAP *image2;
image2 = FreeImage_ConvertTo32Bits(image);
FreeImage_Unload(image);
image = image2;
}
#if FREEIMAGE_MAJOR_VERSION*100+FREEIMAGE_MINOR_VERSION >= 313
if (rotation) {
FIBITMAP *image2;
image2 = FreeImage_Rotate(image, rotation, NULL);
image = image2;
}
#endif
gi = g_new0(struct graphics_image_priv, 1);
width = FreeImage_GetWidth(image);
height = FreeImage_GetHeight(image);
if ((*w != width || *h != height) && 0 < *w && 0 < *h) {
FIBITMAP *image2;
image2 = FreeImage_Rescale(image, *w, *h, NULL);
FreeImage_Unload(image);
image = image2;
width = *w;
height = *h;
}
data = (unsigned char *) malloc(width * height * 4);
RGBQUAD *palette = NULL;
if (FreeImage_GetBPP(image) == 8) {
palette = FreeImage_GetPalette(image);
}
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++) {
unsigned char idx;
if (FreeImage_GetBPP(image) == 8) {
FreeImage_GetPixelIndex(image, j,
height -
i - 1,
&idx);
data[4 * width * i + 4 * j + 0] =
palette[idx].rgbRed;
data[4 * width * i + 4 * j + 1] =
palette[idx].rgbGreen;
data[4 * width * i + 4 * j + 2] =
palette[idx].rgbBlue;
data[4 * width * i + 4 * j + 3] =
255;
} else if (FreeImage_GetBPP(image) == 16
|| FreeImage_GetBPP(image) == 24
|| FreeImage_GetBPP(image) ==
32) {
FreeImage_GetPixelColor(image, j,
height -
i - 1,
&aPixel);
int transparent =
(aPixel.rgbRed == 0
&& aPixel.rgbBlue == 0
&& aPixel.rgbGreen == 0);
data[4 * width * i + 4 * j + 0] =
transparent ? 0 : (aPixel.
rgbRed);
data[4 * width * i + 4 * j + 1] =
(aPixel.rgbGreen);
data[4 * width * i + 4 * j + 2] =
transparent ? 0 : (aPixel.
rgbBlue);
data[4 * width * i + 4 * j + 3] =
transparent ? 0 : 255;
}
}
}
FreeImage_Unload(image);
*w = width;
*h = height;
gi->w = width;
gi->h = height;
gi->hot_x = width / 2 - 1;
gi->hot_y = height / 2 - 1;
hot->x = width / 2 - 1;
hot->y = height / 2 - 1;
gi->data = data;
gi->path = path;
//add to hashtable
g_hash_table_insert(hImageData, g_strdup(path), gi);
return gi;
}
#else
return NULL;
#endif
}
bool ImageLoader::
load(const std::string& imageName, bool isNormalMap)
{
// 载入图片
FREE_IMAGE_FORMAT fif = FreeImage_GetFileType(imageName.c_str());
if((fif != FIF_UNKNOWN) && FreeImage_FIFSupportsReading(fif))
{
if (mDIB)
FreeImage_Unload(mDIB);
mDIB = FreeImage_Load(fif, imageName.c_str());
mFormat = fif;
bool needScale = !oiram::fequal(config.imageScale, 1.0f);
unsigned int newWidth = width(), newHeight = height(), newBpp = bpp();
bool imagePowerOfTwo = config.imagePowerOfTwo;
unsigned int imageMaxSize = config.imageMaxSize;
// PVRTCII支持non-POT; ETC1和ETC2必须是POT, 最大尺寸限定在2048, 而且必须是正方形
if (config.imageCompressionType == CT_ETC1 ||
config.imageCompressionType == CT_ETC2)
{
imagePowerOfTwo = true;
imageMaxSize = 2048;
}
// DXTC/PVRTC/ETCI有最小尺寸限制
switch (config.imageCompressionType)
{
case CT_DXTC:
if (newWidth < DXT_MIN_TEXWIDTH)
{
newWidth = DXT_MIN_TEXWIDTH;
needScale = true;
}
if (newHeight < DXT_MIN_TEXHEIGHT)
{
newHeight = DXT_MIN_TEXHEIGHT;
needScale = true;
}
// DXTC的尺寸必须是4的倍数
{
unsigned int multiplesOfFourWidth = nearestMultiplesOfFour(newWidth),
multiplesOfFourHeight = nearestMultiplesOfFour(newHeight);
if (newWidth != multiplesOfFourWidth)
{
newWidth = multiplesOfFourWidth;
needScale = true;
}
if (newHeight != multiplesOfFourHeight)
{
newHeight = multiplesOfFourHeight;
needScale = true;
}
}
break;
case CT_ETC1:
case CT_ETC2:
if (newWidth < ETC_MIN_TEXWIDTH)
{
newWidth = ETC_MIN_TEXWIDTH;
needScale = true;
}
if (newHeight < ETC_MIN_TEXHEIGHT)
{
newHeight = ETC_MIN_TEXHEIGHT;
needScale = true;
}
break;
case CT_PVRTC2_4BPP:
if (newWidth < PVRTC4_MIN_TEXWIDTH)
{
newWidth = PVRTC4_MIN_TEXWIDTH;
needScale = true;
}
if (newHeight < PVRTC4_MIN_TEXHEIGHT)
{
newHeight = PVRTC4_MIN_TEXHEIGHT;
needScale = true;
}
break;
}
// 超出最大尺寸则按比例缩放
if (imageMaxSize > 0 &&
(newWidth > imageMaxSize || newHeight > imageMaxSize))
{
if (newWidth > newHeight)
{
float scale = static_cast<float>(newWidth) / newHeight;
newWidth = imageMaxSize;
newHeight = static_cast<unsigned int>(newWidth / scale);
}
else
{
float scale = static_cast<float>(newHeight) / newWidth;
newHeight = imageMaxSize;
newWidth = static_cast<unsigned int>(newHeight / scale);
}
needScale = true;
}
newWidth = static_cast<unsigned int>(newWidth * config.imageScale);
newHeight = static_cast<unsigned int>(newHeight * config.imageScale);
if (imagePowerOfTwo)
{
unsigned int potWidth = nearestPowerOfTwo(newWidth), potHeight = nearestPowerOfTwo(newHeight);
if (newWidth != potWidth || newHeight != potHeight)
{
newWidth = potWidth;
newHeight = potHeight;
needScale = true;
}
}
if (needScale)
{
FIBITMAP* rescaleDIB = FreeImage_Rescale(mDIB, newWidth, newHeight, FILTER_LANCZOS3);
FreeImage_Unload(mDIB);
mDIB = rescaleDIB;
}
return true;
}
return false;
}
void task_glow_precalc() {
FIMULTIBITMAP* anim = inputanim;
float thresh=0.5;
float gain=2.0;
float blur=1.5;
int frameskip=1;
sscanf(args[1].c_str(), "%f", &thresh);
sscanf(args[2].c_str(), "%f", &gain);
sscanf(args[3].c_str(), "%f", &blur);
sscanf(args[4].c_str(), "%i", &frameskip);
int frameCount = FreeImage_GetPageCount(anim);
vector<double> fb;
for (int frame=0; frame<frameCount/frameskip; frame++) {
FIBITMAP* fiBitmap = FreeImage_LockPage(anim, frame*frameskip);
FIBITMAP* grayBitmap = FreeImage_ConvertToGreyscale(fiBitmap);
FreeImage_UnlockPage(anim, fiBitmap, FALSE);
int width = FreeImage_GetWidth(grayBitmap);
int height = FreeImage_GetHeight(grayBitmap);
// put into an array of doubles (phew)
fb.resize(width*height);
for (int y=0; y<height; y++) {
BYTE* src = FreeImage_GetScanLine(grayBitmap, y);
double* dst = &fb[y*width];
for (int x=0; x<width; x++) {
*dst++ = *src++ * (1.0/255);
}
}
// threshold
for (int i=0; i<(int)fb.size(); i++) {
double& v = fb[i];
v = (v-thresh)*gain;
if (v<0) v=0;
}
// blur
Blur(fb, width, height, blur);
// put it back into greyBitmap
for (int y=0; y<height; y++) {
BYTE* dst = FreeImage_GetScanLine(grayBitmap, y);
double* src = &fb[y*width];
for (int x=0; x<width; x++) {
double v = *src++ * 256;
if (v<0) v=0;
if (v>255) v=255;
*dst++ = int(v);
}
}
// downsample it to glowgrid
FIBITMAP* smallBitmap = FreeImage_Rescale(grayBitmap, GLOWGRID_W, GLOWGRID_H, FILTER_BSPLINE);
// print result (should use 4bpp not 8?)
for (int y=0; y<GLOWGRID_H; y++) {
BYTE* src = FreeImage_GetScanLine(smallBitmap, y);
for (int x=0; x<GLOWGRID_W; x++) {
putchar( *src++ );
}
}
}
}
/// 图片另存为
Bool FreeImageImage::saveToFile(ImageFileFormat eFileFormat, PCStr pszFileName, Rect* pRectClip, Point* pResize)
{
if (!isLoaded())
return False;
FREE_IMAGE_FORMAT eFreeImageFormat;
switch (eFileFormat)
{
case IFF_BMP:
eFreeImageFormat = FIF_BMP;
break;
case IFF_PNG:
eFreeImageFormat = FIF_PNG;
break;
case IFF_JPG:
eFreeImageFormat = FIF_JPEG;
break;
default:
return False;
}
Point ptLeftTop(0, 0);
Point ptSize(_ptImgSize.x, _ptImgSize.y);
// 有裁减矩形
if (pRectClip)
{
ptLeftTop.setPoint(pRectClip->x1, pRectClip->y1);
ptSize = pRectClip->getSize();
if (ptLeftTop.x + ptSize.x > _ptImgSize.x ||
ptLeftTop.y + ptSize.y > _ptImgSize.y)
return False;
}
FIBITMAP* pFIBitmap = FreeImage_Allocate(ptSize.x, ptSize.y, 32, 8, 8, 8);
for(Int y = 0; y < ptSize.y; ++y)
{
// 需要考虑到 图片倒转
Int nSrcFlipY = _ptImgSize.y - y - 1 - ptLeftTop.y;
Int nDstFlipY = ptSize.y - y - 1;
Color* pColorSrc = &_pImgData[_ptImgSize.x * nSrcFlipY + ptLeftTop.x];
Color* pColorDst = (Color*)FreeImage_GetScanLine(pFIBitmap, nDstFlipY);
memcpy(pColorDst, pColorSrc, sizeof(Color) * ptSize.x);
}
if (pResize)
{
if (0 == pResize->x && 0 < pResize->y)
pResize->x = (Int16)((Real)pResize->y / (Real)ptSize.y * (Real)ptSize.x);
if (0 == pResize->y && 0 < pResize->x)
pResize->y = (Int16)((Real)pResize->x / (Real)ptSize.x * (Real)ptSize.y);
pFIBitmap = FreeImage_Rescale(pFIBitmap, pResize->x, pResize->y, FILTER_BILINEAR);
}
Bool isSuccess = FreeImage_Save(eFreeImageFormat, pFIBitmap, pszFileName, PNG_DEFAULT);
FreeImage_Unload(pFIBitmap);
return isSuccess;
}
static INT_PTR serviceBmpFilterResizeBitmap(WPARAM wParam,LPARAM lParam)
{
BITMAP bminfo;
int width, height;
int xOrig, yOrig, widthOrig, heightOrig;
ResizeBitmap *info = (ResizeBitmap *) wParam;
if (info == NULL || info->size != sizeof(ResizeBitmap)
|| info->hBmp == NULL
|| info->max_width < 0 || info->max_height < 0
|| (info->fit & ~RESIZEBITMAP_FLAG_DONT_GROW) < RESIZEBITMAP_STRETCH
|| (info->fit & ~RESIZEBITMAP_FLAG_DONT_GROW) > RESIZEBITMAP_MAKE_SQUARE)
return 0;
// Well, lets do it
// Calc final size
GetObject(info->hBmp, sizeof(bminfo), &bminfo);
width = info->max_width == 0 ? bminfo.bmWidth : info->max_width;
height = info->max_height == 0 ? bminfo.bmHeight : info->max_height;
xOrig = 0;
yOrig = 0;
widthOrig = bminfo.bmWidth;
heightOrig = bminfo.bmHeight;
if (widthOrig == 0 || heightOrig == 0)
return 0;
switch(info->fit & ~RESIZEBITMAP_FLAG_DONT_GROW)
{
case RESIZEBITMAP_STRETCH:
{
// Do nothing
break;
}
case RESIZEBITMAP_KEEP_PROPORTIONS:
{
if (height * widthOrig / heightOrig <= width)
{
if (info->fit & RESIZEBITMAP_FLAG_DONT_GROW)
height = min(height, bminfo.bmHeight);
width = height * widthOrig / heightOrig;
}
else
{
if (info->fit & RESIZEBITMAP_FLAG_DONT_GROW)
width = min(width, bminfo.bmWidth);
height = width * heightOrig / widthOrig;
}
break;
}
case RESIZEBITMAP_MAKE_SQUARE:
{
if (info->fit & RESIZEBITMAP_FLAG_DONT_GROW)
{
width = min(width, bminfo.bmWidth);
height = min(height, bminfo.bmHeight);
}
width = height = min(width, height);
// Do not break. Use crop calcs to make size
}
case RESIZEBITMAP_CROP:
{
if (heightOrig * width / height >= widthOrig)
{
heightOrig = widthOrig * height / width;
yOrig = (bminfo.bmHeight - heightOrig) / 2;
}
else
{
widthOrig = heightOrig * width / height;
xOrig = (bminfo.bmWidth - widthOrig) / 2;
}
break;
}
}
if ((width == bminfo.bmWidth && height == bminfo.bmHeight)
|| ((info->fit & RESIZEBITMAP_FLAG_DONT_GROW)
&& !(info->fit & RESIZEBITMAP_MAKE_SQUARE)
&& width > bminfo.bmWidth && height > bminfo.bmHeight))
{
// Do nothing
return (INT_PTR)info->hBmp;
}
else
{
FIBITMAP *dib = FreeImage_CreateDIBFromHBITMAP(info->hBmp);
if (dib == NULL)
return NULL;
FIBITMAP *dib_tmp;
if (xOrig > 0 || yOrig > 0)
dib_tmp = FreeImage_Copy(dib, xOrig, yOrig, xOrig + widthOrig, yOrig + heightOrig);
else
dib_tmp = dib;
if (dib_tmp == NULL)
{
FreeImage_Unload(dib);
return NULL;
}
FIBITMAP *dib_new = FreeImage_Rescale(dib_tmp, width, height, FILTER_CATMULLROM);
HBITMAP bitmap_new = FreeImage_CreateHBITMAPFromDIB(dib_new);
if (dib_new != dib_tmp)
FreeImage_Unload(dib_new);
if (dib_tmp != dib)
FreeImage_Unload(dib_tmp);
FreeImage_Unload(dib);
return (INT_PTR)bitmap_new;
}
}
void poImage::resize(float w, float h) {
FIBITMAP *img = FreeImage_Rescale(bitmap, w, h, FILTER_CATMULLROM);
FreeImage_Unload(bitmap);
bitmap = img;
}
const QImage ImageLoaderFreeImage::imageAsRGB(const QSize &size) const
{
const QSize resultSize = size.isValid() ? size : sizePixels();
const bool isRGB24 = colorDataType() == Types::ColorTypeRGB && bitsPerPixel() == 24;
const bool isARGB32 = colorDataType() == Types::ColorTypeRGBA && bitsPerPixel() == 32;
QImage result(resultSize, isARGB32 ? QImage::Format_ARGB32 : QImage::Format_RGB32);
const int width = resultSize.width();
const int height = resultSize.height();
const QSize sizePixels = this->sizePixels();
FIBITMAP* originalImage = m_bitmap;
FIBITMAP* temp24BPPImage = NULL;
FIBITMAP* scaledImage = NULL;
if (!(isRGB24 || isARGB32)) {
if (colorDataType() == Types::ColorTypeCMYK) {
const bool isCmykJpeg = isJpeg(); // Value range inverted
temp24BPPImage = FreeImage_Allocate(sizePixels.width(), sizePixels.height(), 24);
const unsigned int columnsCount = sizePixels.width();
const unsigned int scanlinesCount = sizePixels.height();
for (unsigned int scanline = 0; scanline < scanlinesCount; scanline++) {
const BYTE* const cmykBits = FreeImage_GetScanLine(m_bitmap, scanline);
tagRGBTRIPLE* const rgbBits = (tagRGBTRIPLE *)FreeImage_GetScanLine(temp24BPPImage, scanline);
for (unsigned int column = 0; column < columnsCount; column++) {
const unsigned int cmykColumn = column * 4;
const QColor rgbColor = isCmykJpeg ?
QColor::fromCmyk(255 - cmykBits[cmykColumn], 255 - cmykBits[cmykColumn + 1], 255 - cmykBits[cmykColumn + 2], 255 - cmykBits[cmykColumn + 3])
: QColor::fromCmyk(cmykBits[cmykColumn], cmykBits[cmykColumn + 1], cmykBits[cmykColumn + 2], cmykBits[cmykColumn + 3]);
rgbBits[column].rgbtRed = (BYTE)rgbColor.red();
rgbBits[column].rgbtGreen = (BYTE)rgbColor.green();
rgbBits[column].rgbtBlue = (BYTE)rgbColor.blue();
}
}
} else {
temp24BPPImage = FreeImage_ConvertTo24Bits(originalImage);
}
originalImage = temp24BPPImage;
}
if (resultSize != sizePixels) {
scaledImage = FreeImage_Rescale(originalImage, width, height, FILTER_BOX);
originalImage = scaledImage;
}
for (int scanline = 0; scanline < height; scanline++) {
QRgb *targetData = (QRgb*)result.scanLine(scanline);
if (isARGB32) {
const tagRGBQUAD *sourceRgba = (tagRGBQUAD*)FreeImage_GetScanLine(originalImage, height - scanline - 1);
for (int column = 0; column < width; column++) {
*targetData++ = qRgba(sourceRgba->rgbRed, sourceRgba->rgbGreen, sourceRgba->rgbBlue, sourceRgba->rgbReserved);
sourceRgba++;
}
} else {
const tagRGBTRIPLE *sourceRgb = (tagRGBTRIPLE*)FreeImage_GetScanLine(originalImage, height - scanline - 1);
for (int column = 0; column < width; column++) {
*targetData++ = qRgb(sourceRgb->rgbtRed, sourceRgb->rgbtGreen, sourceRgb->rgbtBlue);
sourceRgb++;
}
}
}
if (temp24BPPImage)
FreeImage_Unload(temp24BPPImage);
if (scaledImage)
FreeImage_Unload(scaledImage);
return result;
}
