/** @brief Inverts each pixel data.
@param src Input image to be processed.
@return Returns TRUE if successful, FALSE otherwise.
*/
BOOL DLL_CALLCONV
FreeImage_Invert(FIBITMAP *src) {
unsigned i, x, y, k;
BYTE *bits;
if (!src) return FALSE;
int bpp = FreeImage_GetBPP(src);
switch(bpp) {
case 1 :
case 4 :
case 8 :
{
// if the dib has a colormap, just invert it
// else, keep the linear grayscale
if (FreeImage_GetColorType(src) == FIC_PALETTE) {
RGBQUAD *pal = FreeImage_GetPalette(src);
for(i = 0; i < FreeImage_GetColorsUsed(src); i++) {
pal[i].rgbRed = 255 - pal[i].rgbRed;
pal[i].rgbGreen = 255 - pal[i].rgbGreen;
pal[i].rgbBlue = 255 - pal[i].rgbBlue;
}
} else {
for(y = 0; y < FreeImage_GetHeight(src); y++) {
bits = FreeImage_GetScanLine(src, y);
for (x = 0; x < FreeImage_GetLine(src); x++) {
bits[x] = ~bits[x];
}
}
}
break;
}
case 24 :
case 32 :
{
unsigned bytespp = FreeImage_GetLine(src) / FreeImage_GetWidth(src);
for(y = 0; y < FreeImage_GetHeight(src); y++) {
bits = FreeImage_GetScanLine(src, y);
for(x = 0; x < FreeImage_GetWidth(src); x++) {
for(k = 0; k < bytespp; k++) {
bits[k] = ~bits[k];
}
bits += bytespp;
}
}
break;
}
}
return TRUE;
}
void write_image(const string& file, const SampleBuffer& buffer)
{
const float samples = static_cast<float>(buffer.samples());
FIBITMAP* dib = FreeImage_Allocate(buffer.width(), buffer.height(),
32, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
const unsigned int BYTESPP =
FreeImage_GetLine(dib) / FreeImage_GetWidth(dib);
for (unsigned int y = 0; y < FreeImage_GetHeight(dib); ++y) {
BYTE* bits = FreeImage_GetScanLine(dib, y);
for (unsigned int x = 0; x < FreeImage_GetWidth(dib); ++x) {
vec3 c = gamma_correct(buffer.get(x, y) / samples) * 255.0f;
bits[FI_RGBA_RED] = static_cast<BYTE>(c.r);
bits[FI_RGBA_GREEN] = static_cast<BYTE>(c.g);
bits[FI_RGBA_BLUE] = static_cast<BYTE>(c.b);
bits[FI_RGBA_ALPHA] = 255;
bits += BYTESPP;
}
}
if (!FreeImage_Save(FIF_PNG, dib, file.c_str(), 0)) {
string err = "Failed to save screenshot to file '";
err += file;
err += '\'';
throw err;
}
FreeImage_Unload(dib);
}
void ImageLoader::
compatible()
{
// BITMAP数据是从下往上的, 需要翻转
FreeImage_FlipVertical(mDIB);
// FreeImage是BGR顺序, 与NVTT要求的一致, 而PVRT需要RGB顺序, 两者都需要32bits数据
if (config.imageCompressionType != CT_DXTC)
{
// 将BGR改为RGB, 交换R channel和B channel
const unsigned bytesperpixel = FreeImage_GetBPP(mDIB) / 8;
const unsigned height = FreeImage_GetHeight(mDIB);
const unsigned pitch = FreeImage_GetPitch(mDIB);
const unsigned lineSize = FreeImage_GetLine(mDIB);
BYTE* line = FreeImage_GetBits(mDIB);
for (unsigned y = 0; y < height; ++y, line += pitch) {
for (BYTE* pixel = line; pixel < line + lineSize; pixel += bytesperpixel) {
INPLACESWAP(pixel[0], pixel[2]);
}
}
}
if (FreeImage_GetBPP(mDIB) != 32)
{
FIBITMAP* convertDIB = FreeImage_ConvertTo32Bits(mDIB);
FreeImage_Unload(mDIB);
mDIB = convertDIB;
}
}
unsigned DLL_CALLCONV
FreeImage_GetPitch(FIBITMAP *dib) {
if(dib) {
FREEIMAGEHEADER *fih = (FREEIMAGEHEADER *)dib->data;
return fih->external_bits ? fih->external_pitch : (FreeImage_GetLine(dib) + 3 & ~3);
}
return 0;
}
// Takes an image from the frame buffer and compresses it
int writeFrame(FIMEMORY *fiBuffer, FIBITMAP *fiImage, unsigned char imageType) {
/*
char msg[1024];
sprintf_s(msg, 1024, "imageType: %i", imageType);
MessageBox(NULL,msg,"ADES DEBUG", MB_OK);
*/
imageType = 2;
int errStatus = 1;
u_short imageWidth, imageHeight;
unsigned width, height, pitch, line;
BYTE *bits;
// Package image using correct compression
switch(imageType) {
case 0: // Send a raw frame
// Get image characteristics
width = FreeImage_GetWidth(fiImage);
height = FreeImage_GetHeight(fiImage);
pitch = FreeImage_GetPitch(fiImage);
line = FreeImage_GetLine(fiImage);
// Write out width and height
errStatus = FreeImage_SeekMemory(fiBuffer, 0, SEEK_SET);
if (errStatus != 1) break;
imageWidth = htons(width);
errStatus = FreeImage_WriteMemory( &imageWidth, 2, 1, fiBuffer );
if (errStatus != 1) break;
imageHeight = htons(height);
errStatus = FreeImage_WriteMemory( &imageHeight, 2, 1, fiBuffer );
if (errStatus != 1) break;
// Write out image (convert the bitmap to raw bits, top-left pixel first)
bits = (BYTE*)malloc(height * pitch);
FreeImage_ConvertToRawBits(bits, fiImage, pitch, 24,
FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK, TRUE);
errStatus = FreeImage_WriteMemory( bits, height*pitch*sizeof(BYTE), 1, fiBuffer );
free(bits);
if (errStatus != 1) break;
break;
default: // Send a jpg frame
errStatus = FreeImage_SeekMemory(fiBuffer, 0, SEEK_SET);
if (errStatus != 1) break;
errStatus = FreeImage_SaveToMemory(FIF_JPEG, fiImage, fiBuffer, convertToJpegFlag(imageType));
if (errStatus != 1) break;
break;
}
// Clean up and exit
return errStatus;
}
int main (int argc, char ** argv)
{
if (argc != 2){
printf("you need to give me the number of frames to captures\n");
exit(-1);
}
int num_frames = atoi(argv[1]);
initialize_pru();
start_pru();
FILE * image_data = fopen("/media/usb/image.data", "w");
if (image_data == NULL){
fprintf(stderr, "Failed to open image output file");
exit(-1);
}
const char *version = FreeImage_GetVersion();
printf("Freeimage version %s\n", version);
FIBITMAP* dib = FreeImage_Allocate(320, 203, 16, 0xF800, 0x07E0,0x001F); // allocate 320x203 RGB565 bitmap
int bytespp = FreeImage_GetLine(dib)/FreeImage_GetWidth(dib);
FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(dib);
if (image_type == FIT_BITMAP){
printf("1\n");
}
printf("%d %d\n", FreeImage_GetHeight(dib), FreeImage_GetWidth(dib));
BYTE * bits = FreeImage_GetBits(dib);
FILE * fp = fopen("image.data", "rb");
char filename[] = "/root/1314-BeagleBone-Quadcopter/code/ControlTower/ramfs/latest_image.bmp";
int i = 0;
for (i = 0; i < num_frames; i++){
while(i==pruDataMem_int[100]){usleep(100000);}
int buffer = pruDataMem_int[1];
printf("%d buffer=%d\n", pruDataMem_int[100], buffer);
if (i%10==0){
memcpy(bits, pru1_ddr+buffer*320*240*2, 320*203*2);
FreeImage_Save(FIF_BMP, dib, filename,0);
}
}
uninitialize_pru();
fflush(image_data);
printf("%d\n", ((volatile uint8_t *)pru1_ddr)[0]);
fclose(image_data);
prussdrv_pru_disable (PRU_NUM);
prussdrv_exit ();
return(0);
}
static BOOL DLL_CALLCONV
Save(FreeImageIO *io, FIBITMAP *dib, fi_handle handle, int page, int flags, void *data) {
if(!dib || !handle) return FALSE;
FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(dib);
if((image_type != FIT_RGBF) && (image_type != FIT_FLOAT)) {
return FALSE;
}
unsigned width = FreeImage_GetWidth(dib);
unsigned height = FreeImage_GetHeight(dib);
unsigned lineWidth = FreeImage_GetLine(dib);
// save image as Little Endian
const float scalefactor = -1.0F;
char buffer[PFM_MAXLINE]; // temporary buffer whose size should be enough for what we need
// Find the appropriate magic number for this file type
char magic = 0;
switch(image_type) {
case FIT_RGBF:
magic = 'F'; // RGBF
break;
case FIT_FLOAT:
magic = 'f'; // float greyscale
break;
default:
return FALSE;
}
// Write the header info
sprintf(buffer, "P%c\n%d %d\n%f\n", magic, width, height, scalefactor);
io->write_proc(&buffer, (unsigned int)strlen(buffer), 1, handle);
// Write the image data
for (unsigned y = 0; y < height; y++) {
BYTE *bits = FreeImage_GetScanLine(dib, height - 1 - y);
io->write_proc(bits, 1, lineWidth, handle);
}
return TRUE;
}
/** @brief Fills an image with the specified color.
This function sets all pixels of an image to the color provided through the color
parameter. Since this should work for all image types supported by FreeImage, the
pointer color must point to a memory location, which is at least as large as the
image's color value, if this size is greater than 4 bytes. As the color is specified
by an RGBQUAD structure for all images of type FIT_BITMAP (including all palletized
images), the smallest possible size of this memory is the size of the RGBQUAD structure,
which uses 4 bytes.
So, color must point to a double, if the image to be filled is of type FIT_DOUBLE and
point to a RGBF structure if the image is of type FIT_RGBF and so on.
However, the fill color is always specified through a RGBQUAD structure for all images
of type FIT_BITMAP. So, for 32- and 24-bit images, the red, green and blue members of
the RGBQUAD structure are directly used for the image's red, green and blue channel
respectively. Although alpha transparent RGBQUAD colors are supported, the alpha channel
of a 32-bit image never gets modified by this function. A fill color with an alpha value
smaller than 255 gets blended with the image's actual background color, which is determined
from the image's bottom-left pixel. So, currently using alpha enabled colors, assumes the
image to be unicolor before the fill operation. However, the RGBQUAD's rgbReserved member is
only taken into account, if option FI_COLOR_IS_RGBA_COLOR has been specified.
For 16-bit images, the red-, green- and blue components of the specified color are
transparently translated into either the 16-bit 555 or 565 representation. This depends
on the image's actual red- green- and blue masks.
Special attention must be payed for palletized images. Generally, the RGB color specified
is looked up in the image's palette. The found palette index is then used to fill the image.
There are some option flags, that affect this lookup process:
no option specified (0x00) Uses the color, that is nearest to the specified color.
This is the default behavior and should always find a
color in the palette. However, the visual result may
far from what was expected and mainly depends on the
image's palette.
FI_COLOR_FIND_EQUAL_COLOR (0x02) Searches the image's palette for the specified color
but only uses the returned palette index, if the specified
color exactly matches the palette entry. Of course,
depending on the image's actual palette entries, this
operation may fail. In this case, the function falls back
to option FI_COLOR_ALPHA_IS_INDEX and uses the RGBQUAD's
rgbReserved member (or its low nibble for 4-bit images
or its least significant bit (LSB) for 1-bit images) as
the palette index used for the fill operation.
FI_COLOR_ALPHA_IS_INDEX (0x04) Does not perform any color lookup from the palette, but
uses the RGBQUAD's alpha channel member rgbReserved as
the palette index to be used for the fill operation.
However, for 4-bit images, only the low nibble of the
rgbReserved member are used and for 1-bit images, only
the least significant bit (LSB) is used.
This function fails if any of dib and color is NULL.
@param dib The image to be filled.
@param color A pointer to the color value to be used for filling the image. The
memory pointed to by this pointer is always assumed to be at least as large as the
image's color value, but never smaller than the size of an RGBQUAD structure.
@param options Options that affect the color search process for palletized images.
@return Returns TRUE on success, FALSE otherwise. This function fails if any of
dib and color is NULL.
*/
BOOL DLL_CALLCONV
FreeImage_FillBackground(FIBITMAP *dib, const void *color, int options) {
if (!FreeImage_HasPixels(dib)) {
return FALSE;
}
if (!color) {
return FALSE;
}
// handle FIT_BITMAP images with FreeImage_FillBackground()
if (FreeImage_GetImageType(dib) == FIT_BITMAP) {
return FillBackgroundBitmap(dib, (RGBQUAD *)color, options);
}
// first, construct the first scanline (bottom line)
unsigned bytespp = (FreeImage_GetBPP(dib) / 8);
BYTE *src_bits = FreeImage_GetScanLine(dib, 0);
BYTE *dst_bits = src_bits;
for (unsigned x = 0; x < FreeImage_GetWidth(dib); x++) {
memcpy(dst_bits, color, bytespp);
dst_bits += bytespp;
}
// then, copy the first scanline into all following scanlines
unsigned height = FreeImage_GetHeight(dib);
unsigned pitch = FreeImage_GetPitch(dib);
unsigned bytes = FreeImage_GetLine(dib);
dst_bits = src_bits + pitch;
for (unsigned y = 1; y < height; y++) {
memcpy(dst_bits, src_bits, bytes);
dst_bits += pitch;
}
return TRUE;
}
FIBITMAP* DLL_CALLCONV
FIA_ColourConvertBGRtoRGB (FIBITMAP * src)
{
FIBITMAP *dst = NULL;
int x, y, bytespp;
if (!src)
return NULL;
if (FIA_IsGreyScale(src)==1)
return NULL;
dst = FreeImage_Clone(src);
// Calculate the number of bytes per pixel (3 for 24-bit or 4 for 32-bit)
bytespp = FreeImage_GetLine(src) / FreeImage_GetWidth(src);
for(y = 0; y < FreeImage_GetHeight(src); y++) {
BYTE *src_bits = FreeImage_GetScanLine(src, y);
BYTE *dst_bits = FreeImage_GetScanLine(dst, y);
for(x = 0; x < FreeImage_GetWidth(src); x++) {
// reverse colour bytes
dst_bits[FI_RGBA_RED] = src_bits[FI_RGBA_BLUE];
dst_bits[FI_RGBA_GREEN] = src_bits[FI_RGBA_GREEN];
dst_bits[FI_RGBA_BLUE] = src_bits[FI_RGBA_RED];
dst_bits[FI_RGBA_ALPHA] = 0;
// jump to next pixel
src_bits += bytespp;
dst_bits += bytespp;
}
}
return dst;
}
/** @brief Inverts each pixel data.
@param src Input image to be processed.
@return Returns TRUE if successful, FALSE otherwise.
*/
BOOL DLL_CALLCONV
FreeImage_Invert(FIBITMAP *src) {
if (!FreeImage_HasPixels(src)) return FALSE;
unsigned i, x, y, k;
const unsigned width = FreeImage_GetWidth(src);
const unsigned height = FreeImage_GetHeight(src);
const unsigned bpp = FreeImage_GetBPP(src);
FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(src);
if(image_type == FIT_BITMAP) {
switch(bpp) {
case 1 :
case 4 :
case 8 :
{
// if the dib has a colormap, just invert it
// else, keep the linear grayscale
if (FreeImage_GetColorType(src) == FIC_PALETTE) {
RGBQUAD *pal = FreeImage_GetPalette(src);
for(i = 0; i < FreeImage_GetColorsUsed(src); i++) {
pal[i].rgbRed = 255 - pal[i].rgbRed;
pal[i].rgbGreen = 255 - pal[i].rgbGreen;
pal[i].rgbBlue = 255 - pal[i].rgbBlue;
}
} else {
for(y = 0; y < height; y++) {
BYTE *bits = FreeImage_GetScanLine(src, y);
for (x = 0; x < FreeImage_GetLine(src); x++) {
bits[x] = ~bits[x];
}
}
}
break;
}
case 24 :
case 32 :
{
// Calculate the number of bytes per pixel (3 for 24-bit or 4 for 32-bit)
const unsigned bytespp = FreeImage_GetLine(src) / width;
for(y = 0; y < height; y++) {
BYTE *bits = FreeImage_GetScanLine(src, y);
for(x = 0; x < width; x++) {
for(k = 0; k < bytespp; k++) {
bits[k] = ~bits[k];
}
bits += bytespp;
}
}
break;
}
default:
return FALSE;
}
}
else if((image_type == FIT_UINT16) || (image_type == FIT_RGB16) || (image_type == FIT_RGBA16)) {
// Calculate the number of words per pixel (1 for 16-bit, 3 for 48-bit or 4 for 64-bit)
const unsigned wordspp = (FreeImage_GetLine(src) / width) / sizeof(WORD);
for(y = 0; y < height; y++) {
WORD *bits = (WORD*)FreeImage_GetScanLine(src, y);
for(x = 0; x < width; x++) {
for(k = 0; k < wordspp; k++) {
bits[k] = ~bits[k];
}
bits += wordspp;
}
}
}
else {
// anything else ...
return FALSE;
}
return TRUE;
}
FIBITMAP * DLL_CALLCONV
FreeImage_Clone(FIBITMAP *dib) {
if(!dib) {
return NULL;
}
FREE_IMAGE_TYPE type = FreeImage_GetImageType(dib);
unsigned width = FreeImage_GetWidth(dib);
unsigned height = FreeImage_GetHeight(dib);
unsigned bpp = FreeImage_GetBPP(dib);
const BYTE *ext_bits = ((FREEIMAGEHEADER *)dib->data)->external_bits;
// check for pixel availability ...
BOOL header_only = FreeImage_HasPixels(dib) ? FALSE : TRUE;
// check whether this image has masks defined ...
BOOL need_masks = (bpp == 16 && type == FIT_BITMAP) ? TRUE : FALSE;
// allocate a new dib
FIBITMAP *new_dib = FreeImage_AllocateHeaderT(header_only, type, width, height, bpp,
FreeImage_GetRedMask(dib), FreeImage_GetGreenMask(dib), FreeImage_GetBlueMask(dib));
if (new_dib) {
// save ICC profile links
FIICCPROFILE *src_iccProfile = FreeImage_GetICCProfile(dib);
FIICCPROFILE *dst_iccProfile = FreeImage_GetICCProfile(new_dib);
// save metadata links
METADATAMAP *src_metadata = ((FREEIMAGEHEADER *)dib->data)->metadata;
METADATAMAP *dst_metadata = ((FREEIMAGEHEADER *)new_dib->data)->metadata;
// calculate the size of the src image
// align the palette and the pixels on a FIBITMAP_ALIGNMENT bytes alignment boundary
// palette is aligned on a 16 bytes boundary
// pixels are aligned on a 16 bytes boundary
// when using a user provided pixel buffer, force a 'header only' calculation
size_t dib_size = FreeImage_GetInternalImageSize(header_only || ext_bits, width, height, bpp, need_masks);
// copy the bitmap + internal pointers (remember to restore new_dib internal pointers later)
memcpy(new_dib->data, dib->data, dib_size);
// reset ICC profile link for new_dib
memset(dst_iccProfile, 0, sizeof(FIICCPROFILE));
// restore metadata link for new_dib
((FREEIMAGEHEADER *)new_dib->data)->metadata = dst_metadata;
// reset thumbnail link for new_dib
((FREEIMAGEHEADER *)new_dib->data)->thumbnail = NULL;
// copy possible ICC profile
FreeImage_CreateICCProfile(new_dib, src_iccProfile->data, src_iccProfile->size);
dst_iccProfile->flags = src_iccProfile->flags;
// copy metadata models
for(METADATAMAP::iterator i = (*src_metadata).begin(); i != (*src_metadata).end(); i++) {
int model = (*i).first;
TAGMAP *src_tagmap = (*i).second;
if(src_tagmap) {
// create a metadata model
TAGMAP *dst_tagmap = new(std::nothrow) TAGMAP();
if(dst_tagmap) {
// fill the model
for(TAGMAP::iterator j = src_tagmap->begin(); j != src_tagmap->end(); j++) {
std::string dst_key = (*j).first;
FITAG *dst_tag = FreeImage_CloneTag( (*j).second );
// assign key and tag value
(*dst_tagmap)[dst_key] = dst_tag;
}
// assign model and tagmap
(*dst_metadata)[model] = dst_tagmap;
}
}
}
// copy the thumbnail
FreeImage_SetThumbnail(new_dib, FreeImage_GetThumbnail(dib));
// copy user provided pixel buffer (if any)
if(ext_bits) {
const unsigned pitch = FreeImage_GetPitch(dib);
const unsigned linesize = FreeImage_GetLine(dib);
for(unsigned y = 0; y < height; y++) {
memcpy(FreeImage_GetScanLine(new_dib, y), ext_bits, linesize);
ext_bits += pitch;
}
}
return new_dib;
}
return NULL;
}
/** @brief Fills a FIT_BITMAP image with the specified color.
This function does the dirty work for FreeImage_FillBackground for FIT_BITMAP
images.
@param dib The image to be filled.
@param color The color, the specified image should be filled with.
@param options Options that affect the color search process for palletized images.
@return Returns TRUE on success, FALSE otherwise. This function fails if any of
the dib and color is NULL or the provided image is not a FIT_BITMAP image.
*/
static BOOL
FillBackgroundBitmap(FIBITMAP *dib, const RGBQUAD *color, int options) {
if ((!dib) || (FreeImage_GetImageType(dib) != FIT_BITMAP)) {
return FALSE;;
}
if (!color) {
return FALSE;
}
const RGBQUAD *color_intl = color;
unsigned bpp = FreeImage_GetBPP(dib);
unsigned width = FreeImage_GetWidth(dib);
unsigned height = FreeImage_GetHeight(dib);
FREE_IMAGE_COLOR_TYPE color_type = FreeImage_GetColorType(dib);
// get a pointer to the first scanline (bottom line)
BYTE *src_bits = FreeImage_GetScanLine(dib, 0);
BYTE *dst_bits = src_bits;
BOOL supports_alpha = ((bpp >= 24) || ((bpp == 8) && (color_type != FIC_PALETTE)));
// Check for RGBA case if bitmap supports alpha
// blending (8-bit greyscale, 24- or 32-bit images)
if (supports_alpha && (options & FI_COLOR_IS_RGBA_COLOR)) {
if (color->rgbReserved == 0) {
// the fill color is fully transparent; we are done
return TRUE;
}
// Only if the fill color is NOT fully opaque, draw it with
// the (much) slower FreeImage_DrawLine function and return.
// Since we do not have the FreeImage_DrawLine function in this
// release, just assume to have an unicolor background and fill
// all with an 'alpha-blended' color.
if (color->rgbReserved < 255) {
// If we will draw on an unicolor background, it's
// faster to draw opaque with an alpha blended color.
// So, first get the color from the first pixel in the
// image (bottom-left pixel).
RGBQUAD bgcolor;
if (bpp == 8) {
bgcolor = FreeImage_GetPalette(dib)[*src_bits];
} else {
bgcolor.rgbBlue = src_bits[FI_RGBA_BLUE];
bgcolor.rgbGreen = src_bits[FI_RGBA_GREEN];
bgcolor.rgbRed = src_bits[FI_RGBA_RED];
bgcolor.rgbReserved = 0xFF;
}
RGBQUAD blend;
GetAlphaBlendedColor(&bgcolor, color_intl, &blend);
color_intl = &blend;
}
}
int index = (bpp <= 8) ? GetPaletteIndex(dib, color_intl, options, &color_type) : 0;
if (index == -1) {
// No palette index found for a palletized
// image. This should never happen...
return FALSE;
}
// first, build the first scanline (line 0)
switch (bpp) {
case 1: {
unsigned bytes = (width / 8);
memset(dst_bits, ((index == 1) ? 0xFF : 0x00), bytes);
//int n = width % 8;
int n = width & 7;
if (n) {
if (index == 1) {
// set n leftmost bits
dst_bits[bytes] |= (0xFF << (8 - n));
} else {
// clear n leftmost bits
dst_bits[bytes] &= (0xFF >> n);
}
}
break;
}
case 4: {
unsigned bytes = (width / 2);
memset(dst_bits, (index | (index << 4)), bytes);
//if (bytes % 2) {
if (bytes & 1) {
dst_bits[bytes] &= 0x0F;
dst_bits[bytes] |= (index << 4);
}
break;
}
case 8: {
memset(dst_bits, index, FreeImage_GetLine(dib));
break;
}
case 16: {
WORD wcolor = RGBQUAD_TO_WORD(dib, color_intl);
for (unsigned x = 0; x < width; x++) {
((WORD *)dst_bits)[x] = wcolor;
}
break;
}
case 24: {
RGBTRIPLE rgbt = *((RGBTRIPLE *)color_intl);
for (unsigned x = 0; x < width; x++) {
((RGBTRIPLE *)dst_bits)[x] = rgbt;
}
break;
}
case 32: {
RGBQUAD rgbq;
rgbq.rgbBlue = ((RGBTRIPLE *)color_intl)->rgbtBlue;
rgbq.rgbGreen = ((RGBTRIPLE *)color_intl)->rgbtGreen;
rgbq.rgbRed = ((RGBTRIPLE *)color_intl)->rgbtRed;
rgbq.rgbReserved = 0xFF;
for (unsigned x = 0; x < width; x++) {
((RGBQUAD *)dst_bits)[x] = rgbq;
}
break;
}
default:
return FALSE;
}
// Then, copy the first scanline into all following scanlines.
// 'src_bits' is a pointer to the first scanline and is already
// set up correctly.
if (src_bits) {
unsigned pitch = FreeImage_GetPitch(dib);
unsigned bytes = FreeImage_GetLine(dib);
dst_bits = src_bits + pitch;
for (unsigned y = 1; y < height; y++) {
memcpy(dst_bits, src_bits, bytes);
dst_bits += pitch;
}
}
return TRUE;
}
/// Performs vertical image filtering
void CResizeEngine::verticalFilter(FIBITMAP *src, unsigned src_width, unsigned src_height, FIBITMAP *dst, unsigned dst_width, unsigned dst_height) {
if(src_height == dst_height) {
// no scaling required, just copy
BYTE *src_bits = FreeImage_GetBits(src);
BYTE *dst_bits = FreeImage_GetBits(dst);
memcpy(dst_bits, src_bits, dst_height * FreeImage_GetPitch(dst));
}
else {
unsigned index; // pixel index
// allocate and calculate the contributions
CWeightsTable weightsTable(m_pFilter, dst_height, src_height);
// step through columns
switch(FreeImage_GetBPP(src)) {
case 8:
case 24:
case 32:
{
// Calculate the number of bytes per pixel (1 for 8-bit, 3 for 24-bit or 4 for 32-bit)
unsigned bytespp = FreeImage_GetLine(src) / FreeImage_GetWidth(src);
unsigned src_pitch = FreeImage_GetPitch(src);
unsigned dst_pitch = FreeImage_GetPitch(dst);
for(unsigned x = 0; x < dst_width; x++) {
index = x * bytespp;
// work on column x in dst
BYTE *dst_bits = FreeImage_GetBits(dst) + index;
// scale each column
for(unsigned y = 0; y < dst_height; y++) {
// loop through column
double value[4] = {0, 0, 0, 0}; // 4 = 32bpp max
int iLeft = weightsTable.getLeftBoundary(y); // retrieve left boundary
int iRight = weightsTable.getRightBoundary(y); // retrieve right boundary
BYTE *src_bits = FreeImage_GetScanLine(src, iLeft) + index;
for(int i = iLeft; i <= iRight; i++) {
// scan between boundaries
// accumulate weighted effect of each neighboring pixel
double weight = weightsTable.getWeight(y, i-iLeft);
for (unsigned j = 0; j < bytespp; j++) {
value[j] += (weight * (double)src_bits[j]);
}
src_bits += src_pitch;
}
// clamp and place result in destination pixel
for (unsigned j = 0; j < bytespp; j++) {
dst_bits[j] = (BYTE)MIN(MAX((int)0, (int)(value[j] + 0.5)), (int)255);
}
dst_bits += dst_pitch;
}
}
}
break;
case 16:
case 48:
case 64:
{
// Calculate the number of words per pixel (1 for 16-bit, 3 for 48-bit or 4 for 96-bit)
unsigned wordspp = (FreeImage_GetLine(src) / FreeImage_GetWidth(src)) / sizeof(WORD);
unsigned src_pitch = FreeImage_GetPitch(src) / sizeof(WORD);
unsigned dst_pitch = FreeImage_GetPitch(dst) / sizeof(WORD);
for(unsigned x = 0; x < dst_width; x++) {
index = x * wordspp;
// work on column x in dst
WORD *dst_bits = (WORD*)FreeImage_GetBits(dst) + index;
// scale each column
for(unsigned y = 0; y < dst_height; y++) {
// loop through column
double value[4] = {0, 0, 0, 0}; // 4 = 64bpp max
int iLeft = weightsTable.getLeftBoundary(y); // retrieve left boundary
int iRight = weightsTable.getRightBoundary(y); // retrieve right boundary
WORD *src_bits = (WORD*)FreeImage_GetScanLine(src, iLeft) + index;
for(int i = iLeft; i <= iRight; i++) {
// scan between boundaries
// accumulate weighted effect of each neighboring pixel
double weight = weightsTable.getWeight(y, i-iLeft);
for (unsigned j = 0; j < wordspp; j++) {
value[j] += (weight * (double)src_bits[j]);
}
src_bits += src_pitch;
}
// clamp and place result in destination pixel
for (unsigned j = 0; j < wordspp; j++) {
dst_bits[j] = (BYTE)MIN(MAX((WORD)0, (WORD)(value[j] + 0.5)), (WORD)0xFFFF);
}
dst_bits += dst_pitch;
}
}
}
break;
}
}
}
template < typename Tsrc > int LOGIC < Tsrc >::MaskImage (FIBITMAP * src, FIBITMAP * mask)
{
if (mask == NULL || src == NULL)
{
return FIA_ERROR;
}
// Have to be the same size
if (FIA_CheckDimensions (src, mask) == FIA_ERROR)
{
return FIA_ERROR;
}
// Mask has to be 8 bit
if (FreeImage_GetBPP (mask) != 8 || FreeImage_GetImageType (mask) != FIT_BITMAP)
{
return FIA_ERROR;
}
int width = FreeImage_GetWidth (src);
int height = FreeImage_GetHeight (src);
bool greyscale_image = true;
if(FreeImage_GetImageType(src) == FIT_BITMAP && FreeImage_GetBPP(src) > 8) {
greyscale_image = false;
}
if(greyscale_image) {
for(register int y = 0; y < height; y++)
{
Tsrc *src_ptr = (Tsrc *) FreeImage_GetScanLine (src, y);
unsigned char *mask_ptr = (unsigned char *) FreeImage_GetScanLine (mask, y);
for(register int x = 0; x < width; x++)
{
if (!mask_ptr[x])
src_ptr[x] = 0;
}
}
}
else {
int bytespp = FreeImage_GetLine (src) / FreeImage_GetWidth (src);
for(register int y = 0; y < height; y++)
{
BYTE *src_ptr = (BYTE *) FreeImage_GetScanLine (src, y);
BYTE *mask_ptr = (BYTE *) FreeImage_GetScanLine (mask, y);
for(register int x = 0; x < width; x++)
{
if (!mask_ptr[x]) {
src_ptr[FI_RGBA_RED] = 0;
src_ptr[FI_RGBA_GREEN] = 0;
src_ptr[FI_RGBA_BLUE] = 0;
if (bytespp == 4)
src_ptr[FI_RGBA_ALPHA] = 0;
}
src_ptr += bytespp;
}
}
}
return FIA_SUCCESS;
}
static BOOL DLL_CALLCONV
Save(FreeImageIO *io, FIBITMAP *dib, fi_handle handle, int page, int flags, void *data) {
if ((dib != NULL) && (handle != NULL)) {
// write the file header
BITMAPFILEHEADER bitmapfileheader;
bitmapfileheader.bfType = 0x4D42;
bitmapfileheader.bfSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + FreeImage_GetHeight(dib) * FreeImage_GetPitch(dib);
bitmapfileheader.bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + FreeImage_GetColorsUsed(dib) * sizeof(RGBQUAD);
bitmapfileheader.bfReserved1 = 0;
bitmapfileheader.bfReserved2 = 0;
// take care of the bit fields data of any
bool bit_fields = (FreeImage_GetBPP(dib) == 16);
if (bit_fields) {
bitmapfileheader.bfSize += 3 * sizeof(DWORD);
bitmapfileheader.bfOffBits += 3 * sizeof(DWORD);
}
#ifdef FREEIMAGE_BIGENDIAN
SwapFileHeader(&bitmapfileheader);
#endif
if (io->write_proc(&bitmapfileheader, sizeof(BITMAPFILEHEADER), 1, handle) != 1)
return FALSE;
// update the bitmap info header
BITMAPINFOHEADER bih = *FreeImage_GetInfoHeader(dib);
if (bit_fields)
bih.biCompression = BI_BITFIELDS;
else if ((bih.biBitCount == 8) && (flags & BMP_SAVE_RLE))
bih.biCompression = BI_RLE8;
else
bih.biCompression = BI_RGB;
// write the bitmap info header
#ifdef FREEIMAGE_BIGENDIAN
SwapInfoHeader(&bih);
#endif
if (io->write_proc(&bih, sizeof(BITMAPINFOHEADER), 1, handle) != 1)
return FALSE;
// write the bit fields when we are dealing with a 16 bit BMP
if (bit_fields) {
DWORD d;
d = FreeImage_GetRedMask(dib);
if (io->write_proc(&d, sizeof(DWORD), 1, handle) != 1)
return FALSE;
d = FreeImage_GetGreenMask(dib);
if (io->write_proc(&d, sizeof(DWORD), 1, handle) != 1)
return FALSE;
d = FreeImage_GetBlueMask(dib);
if (io->write_proc(&d, sizeof(DWORD), 1, handle) != 1)
return FALSE;
}
// write the palette
if (FreeImage_GetPalette(dib) != NULL) {
RGBQUAD *pal = FreeImage_GetPalette(dib);
FILE_BGRA bgra;
for(unsigned i = 0; i < FreeImage_GetColorsUsed(dib); i++ ) {
bgra.b = pal[i].rgbBlue;
bgra.g = pal[i].rgbGreen;
bgra.r = pal[i].rgbRed;
bgra.a = pal[i].rgbReserved;
if (io->write_proc(&bgra, sizeof(FILE_BGRA), 1, handle) != 1)
return FALSE;
}
}
// write the bitmap data... if RLE compression is enable, use it
unsigned bpp = FreeImage_GetBPP(dib);
if ((bpp == 8) && (flags & BMP_SAVE_RLE)) {
BYTE *buffer = new BYTE[FreeImage_GetPitch(dib) * 2];
for (DWORD i = 0; i < FreeImage_GetHeight(dib); ++i) {
int size = RLEEncodeLine(buffer, FreeImage_GetScanLine(dib, i), FreeImage_GetLine(dib));
if (io->write_proc(buffer, size, 1, handle) != 1) {
delete [] buffer;
return FALSE;
}
}
buffer[0] = RLE_COMMAND;
buffer[1] = RLE_ENDOFBITMAP;
if (io->write_proc(buffer, 2, 1, handle) != 1) {
delete [] buffer;
return FALSE;
}
delete [] buffer;
#ifdef FREEIMAGE_BIGENDIAN
} else if (bpp == 16) {
WORD pixel;
for(int y = 0; y < FreeImage_GetHeight(dib); y++) {
BYTE *line = FreeImage_GetScanLine(dib, y);
for(int x = 0; x < FreeImage_GetWidth(dib); x++) {
pixel = ((WORD *)line)[x];
SwapShort(&pixel);
if (io->write_proc(&pixel, sizeof(WORD), 1, handle) != 1)
return FALSE;
}
}
} else if (bpp == 24) {
FILE_BGR bgr;
for(int y = 0; y < FreeImage_GetHeight(dib); y++) {
BYTE *line = FreeImage_GetScanLine(dib, y);
for(int x = 0; x < FreeImage_GetWidth(dib); x++) {
RGBTRIPLE *triple = ((RGBTRIPLE *)line)+x;
bgr.b = triple->rgbtBlue;
bgr.g = triple->rgbtGreen;
bgr.r = triple->rgbtRed;
if (io->write_proc(&bgr, sizeof(FILE_BGR), 1, handle) != 1)
return FALSE;
}
}
} else if (bpp == 32) {
FILE_BGRA bgra;
for(int y = 0; y < FreeImage_GetHeight(dib); y++) {
BYTE *line = FreeImage_GetScanLine(dib, y);
for(int x = 0; x < FreeImage_GetWidth(dib); x++) {
RGBQUAD *quad = ((RGBQUAD *)line)+x;
bgra.b = quad->rgbBlue;
bgra.g = quad->rgbGreen;
bgra.r = quad->rgbRed;
bgra.a = quad->rgbReserved;
if (io->write_proc(&bgra, sizeof(FILE_BGRA), 1, handle) != 1)
return FALSE;
}
}
#endif
} else if (io->write_proc(FreeImage_GetBits(dib), FreeImage_GetHeight(dib) * FreeImage_GetPitch(dib), 1, handle) != 1) {
return FALSE;
}
return TRUE;
} else {
return FALSE;
}
}
bool sr::Texture::LoadFromFile(const std::string& relativePath, const sr::FileSystem& fileSystem)
{
Unload();
Name(relativePath);
const std::string fullPath = fileSystem.GetFullPath(relativePath);
const char* filename = fullPath.c_str();
const GLenum image_format = GL_RGB; // format the image is in
const GLint internal_format = GL_RGB; // format to store the image in
const GLint level = 0; // mipmapping level
const GLint border = 0; // border size
//check the file signature and deduce its format
FREE_IMAGE_FORMAT fif = FreeImage_GetFileType(filename, 0);
// Try to guess the file format from the file extension:
if(fif == FIF_UNKNOWN)
fif = FreeImage_GetFIFFromFilename(filename);
// if still unkown, return failure
if(fif == FIF_UNKNOWN || !FreeImage_FIFSupportsReading(fif))
return false;
//check that the plugin has reading capabilities and load the file
FIBITMAP* const dib = FreeImage_Load(fif, filename, PNG_DEFAULT);
if(!dib)
return false;
BYTE* const bits = FreeImage_GetBits(dib);
const unsigned int width = FreeImage_GetWidth(dib);
const unsigned int height = FreeImage_GetHeight(dib);
// if this somehow one of these failed (they shouldn't), return failure
if((bits == nullptr) || (width == 0) || (height == 0))
return false;
// Calculate the number of bytes per pixel (3 for 24-bit or 4 for 32-bit)
const int bpp = FreeImage_GetLine(dib) / FreeImage_GetWidth(dib);
// Exchange red and blue channel because FreeImage loads in BGRA format; while we need it as RGBA:
for(unsigned y = 0; y < height; ++y)
{
BYTE* line = FreeImage_GetScanLine(dib, y);
for( unsigned x = 0; x < width; ++x )
{
const BYTE r = line[FI_RGBA_BLUE];
const BYTE b = line[FI_RGBA_RED];
line[FI_RGBA_RED] = r;
line[FI_RGBA_BLUE] = b;
// jump to next pixel
line += bpp;
}
}
// Generate
glGenTextures(1, &id);
glBindTexture(GL_TEXTURE_2D, id);
glTexImage2D(GL_TEXTURE_2D, level, internal_format, width, height, border, image_format, GL_UNSIGNED_BYTE, bits);
// Configure
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
GLfloat maxAniso(0.0f);
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &maxAniso);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, maxAniso);
// Free FreeImage's copy of the data
FreeImage_Unload(dib);
if(id != 0)
{
size = glm::uvec2(width, height);
Loaded(true);
return true;
}
else
{
return false;
}
}
static FIBITMAP * DLL_CALLCONV
Load(FreeImageIO *io, fi_handle handle, int page, int flags, void *data) {
if (handle != NULL) {
FIBITMAP *dib = NULL;
DWORD type, size;
io->read_proc(&type, 4, 1, handle);
#ifndef FREEIMAGE_BIGENDIAN
SwapLong(&type);
#endif
if(type != ID_FORM)
return NULL;
io->read_proc(&size, 4, 1, handle);
#ifndef FREEIMAGE_BIGENDIAN
SwapLong(&size);
#endif
io->read_proc(&type, 4, 1, handle);
#ifndef FREEIMAGE_BIGENDIAN
SwapLong(&type);
#endif
if((type != ID_ILBM) && (type != ID_PBM))
return NULL;
size -= 4;
unsigned width = 0, height = 0, planes = 0, depth = 0, comp = 0;
while (size) {
DWORD ch_type,ch_size;
io->read_proc(&ch_type, 4, 1, handle);
#ifndef FREEIMAGE_BIGENDIAN
SwapLong(&ch_type);
#endif
io->read_proc(&ch_size,4,1,handle );
#ifndef FREEIMAGE_BIGENDIAN
SwapLong(&ch_size);
#endif
unsigned ch_end = io->tell_proc(handle) + ch_size;
if (ch_type == ID_BMHD) { // Bitmap Header
if (dib)
FreeImage_Unload(dib);
BMHD bmhd;
io->read_proc(&bmhd, sizeof(bmhd), 1, handle);
#ifndef FREEIMAGE_BIGENDIAN
SwapHeader(&bmhd);
#endif
width = bmhd.w;
height = bmhd.h;
planes = bmhd.nPlanes;
comp = bmhd.compression;
if(bmhd.masking & 1)
planes++; // there is a mask ( 'stencil' )
if (planes > 8 && planes != 24)
return NULL;
depth = planes > 8 ? 24 : 8;
if( depth == 24 ) {
dib = FreeImage_Allocate(width, height, depth, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
} else {
dib = FreeImage_Allocate(width, height, depth);
}
} else if (ch_type == ID_CMAP) { // Palette (Color Map)
if (!dib)
return NULL;
RGBQUAD *pal = FreeImage_GetPalette(dib);
for (unsigned k = 0; k < ch_size / 3; k++) {
io->read_proc(&pal[k].rgbRed, 1, 1, handle );
io->read_proc(&pal[k].rgbGreen, 1, 1, handle );
io->read_proc(&pal[k].rgbBlue, 1, 1, handle );
}
} else if (ch_type == ID_BODY) {
if (!dib)
return NULL;
if (type == ID_PBM) {
// NON INTERLACED (LBM)
unsigned line = FreeImage_GetLine(dib) + 1 & ~1;
for (unsigned i = 0; i < FreeImage_GetHeight(dib); i++) {
BYTE *bits = FreeImage_GetScanLine(dib, FreeImage_GetHeight(dib) - i - 1);
if (comp == 1) {
// use RLE compression
DWORD number_of_bytes_written = 0;
BYTE rle_count;
BYTE byte;
while (number_of_bytes_written < line) {
io->read_proc(&rle_count, 1, 1, handle);
if (rle_count < 128) {
for (int k = 0; k < rle_count + 1; k++) {
io->read_proc(&byte, 1, 1, handle);
bits[number_of_bytes_written++] += byte;
}
} else if (rle_count > 128) {
io->read_proc(&byte, 1, 1, handle);
for (int k = 0; k < 257 - rle_count; k++) {
bits[number_of_bytes_written++] += byte;
}
}
}
} else {
// don't use compression
io->read_proc(bits, line, 1, handle);
}
}
return dib;
} else {
// INTERLACED (ILBM)
unsigned pixel_size = depth/8;
unsigned n_width=(width+15)&~15;
unsigned plane_size = n_width/8;
unsigned src_size = plane_size * planes;
BYTE *src = (BYTE*)malloc(src_size);
BYTE *dest = FreeImage_GetBits(dib);
dest += FreeImage_GetPitch(dib) * height;
for (unsigned y = 0; y < height; y++) {
dest -= FreeImage_GetPitch(dib);
// read all planes in one hit,
// 'coz PSP compresses across planes...
if (comp) {
// unpacker algorithm
for(unsigned x = 0; x < src_size;) {
// read the next source byte into t
signed char t = 0;
io->read_proc(&t, 1, 1, handle);
if (t >= 0) {
// t = [0..127] => copy the next t+1 bytes literally
unsigned size_to_read = t + 1;
if((size_to_read + x) > src_size) {
// sanity check for buffer overruns
size_to_read = src_size - x;
io->read_proc(src + x, size_to_read, 1, handle);
x += (t + 1);
} else {
io->read_proc(src + x, size_to_read, 1, handle);
x += size_to_read;
}
} else if (t != -128) {
// t = [-1..-127] => replicate the next byte -t+1 times
BYTE b = 0;
io->read_proc(&b, 1, 1, handle);
unsigned size_to_copy = (unsigned)(-(int)t + 1);
if((size_to_copy + x) > src_size) {
// sanity check for buffer overruns
size_to_copy = src_size - x;
memset(src + x, b, size_to_copy);
x += (unsigned)(-(int)t + 1);
} else {
memset(src + x, b, size_to_copy);
x += size_to_copy;
}
}
// t = -128 => noop
}
} else {
io->read_proc(src, src_size, 1, handle);
}
// lazy planar->chunky...
for (unsigned x = 0; x < width; x++) {
for (unsigned n = 0; n < planes; n++) {
BYTE bit = (BYTE)( src[n * plane_size + (x / 8)] >> ((x^7) & 7) );
dest[x * pixel_size + (n / 8)] |= (bit & 1) << (n & 7);
}
}
#ifndef FREEIMAGE_BIGENDIAN
if (depth == 24) {
for (unsigned x = 0; x < width; ++x){
INPLACESWAP(dest[x * 3], dest[x * 3 + 2]);
}
}
#endif
}
free(src);
return dib;
}
}
// Every odd-length chunk is followed by a 0 pad byte. This pad
// byte is not counted in ch_size.
if (ch_size & 1) {
ch_size++;
ch_end++;
}
io->seek_proc(handle, ch_end - io->tell_proc(handle), SEEK_CUR);
size -= ch_size + 8;
}
if (dib)
FreeImage_Unload(dib);
}
/** open the given bitmap file and guarantee
that the pixels can be accessed by RGB
( i.e. convert if indexed )
@return true -> opened and converted correct
*/
bool Vt2IsoImageFreeImage_c::openBitmap( const char* filename )
{
reset();
i_curScanLineY = -1;
if (isOstream())
getOstream() << std::endl << "Opening " << filename << std::endl;
FREE_IMAGE_FORMAT fif = FIF_UNKNOWN;
// check the file signature and deduce its format
// (the second argument is currently not used by FreeImage)
fif = FreeImage_GetFileType(filename, 0);
if(fif == FIF_UNKNOWN) {
// no signature ?
// try to guess the file format from the file extension
fif = FreeImage_GetFIFFromFilename(filename);
if (isOstream()) getOstream() << "File type not recognized" << std::endl;
}
// check that the plugin has reading capabilities ...
if((fif != FIF_UNKNOWN) && FreeImage_FIFSupportsReading(fif)) {
// ok, let's load the file
bitmap = FreeImage_Load(fif, filename, 0);
}
else
{ // hardcore - try with BMP
if (isOstream()) getOstream() << "Try with BMP" << std::endl;
bitmap = FreeImage_Load(FIF_BMP, filename, 0);
if ( bitmap == NULL )
{ // next hardcoretry with png
if (isOstream()) getOstream() << "Try with PNG" << std::endl;
bitmap = FreeImage_Load(FIF_PNG, filename, 0);
}
if ( bitmap == NULL )
{ // next hardcoretry with jpg
if (isOstream()) getOstream() << "Try with JPEG" << std::endl;
bitmap = FreeImage_Load(FIF_JPEG, filename, 0);
}
}
if ( bitmap == NULL )
{
if (isOstream()) getOstream() << "Error loading bitmap file" << std::endl;
return false;
}
else if (isOstream()) getOstream() << "Bitmap successfully loaded" << std::endl;
if (FreeImage_GetBPP(bitmap) > 8)
{ // convert to 32-Bit standard bitmap ONLY if NOT palettized!
FIBITMAP *tmp = FreeImage_ConvertTo32Bits(bitmap);
FreeImage_Unload(bitmap);
bitmap = tmp;
}
ui_width = FreeImage_GetWidth(bitmap);
ui_height = FreeImage_GetHeight(bitmap);
// Calculate the number of bytes per pixel (3 for 24-bit or 4 for 32-bit)
bytespp = FreeImage_GetLine(bitmap) / FreeImage_GetWidth(bitmap);
mb_palettized = false;
if (FreeImage_GetBPP(bitmap) <= 8)
{
mi_colourMismatch = -1; // default: no colour mismatches...
for (int i=0; i<(16+216); i++)
{ // check all colours if the bitmap uses the ISO-palette
if ( (vtColourTable[i].bgrRed != FreeImage_GetPalette (bitmap)[i].rgbRed)
|| (vtColourTable[i].bgrGreen != FreeImage_GetPalette (bitmap)[i].rgbGreen)
|| (vtColourTable[i].bgrBlue != FreeImage_GetPalette (bitmap)[i].rgbBlue) )
{
mi_colourMismatch = i;
break;
}
}
mb_palettized = true;
if (isOstream()) getOstream() << " palettized (depth="<<FreeImage_GetBPP(bitmap)<<"). ";
return true;
}
else
{
if (isOstream()) getOstream() << " as RGB (depth="<<FreeImage_GetBPP(bitmap)<<"). ";
return true;
}
}
unsigned fipImage::getLine() const {
return FreeImage_GetLine(_dib);
}
// MAIN
int main(int argc, char ** argv) {
int scene_id = 0;
bool use_octree = false;
char basename[256] = "";
if (argc > 1)
scene_id = atoi(argv[1]);
if (argc > 2)
strcpy(basename, argv[2]);
// scene_id 0, 1, 2, 3 is for tp 1 tests;
switch (scene_id) {
case 0:
fill_red(output_image);
break;
case 1:
fill(output_image, vector_init(0.7, 0.3, 0.1));
fill_rect(output_image, vector_init(0.2, 0.6, 0.7), vector_init(WIDTH / 4, HEIGHT / 5, 0), vector_init(WIDTH / 3, HEIGHT / 4, 0));
break;
case 2:
horizontal_gradient(output_image, vector_init(0, 0, 1), vector_init(1, 1, 1));
break;
case 3:
horizontal_gradient(output_image, vector_init(0, 0, 1), vector_init(1, 1, 1));
fill_circle(output_image, WIDTH / 20, vector_init(4 * WIDTH / 5, 4 * HEIGHT / 5, 0), vector_init(1, 1, 0));
fill_rect(output_image, vector_init(0.1, 0.8, 0.4), vector_init(0, 0, 0), vector_init(WIDTH, HEIGHT / 4, 0));
break;
case 4:
horizontal_gradient(output_image, vector_init(0.5, 0.8, 1), vector_init(1, 1, 1));
fill_circle(output_image, WIDTH / 20, vector_init(4 * WIDTH / 5, 4 * HEIGHT / 5, 0), vector_init(1, 1, 0));
fill_circle(output_image, WIDTH / 21, vector_init(3 * WIDTH / 5, 3 * HEIGHT / 5, 0), vector_init(1, 0.3, 0.1));
fill_rect(output_image, vector_init(0.85, 0.85, 0.3), vector_init(0, 0, 0), vector_init(WIDTH, HEIGHT / 4, 0));
break;
default:
setup_scene(scene_id - 5);
raytrace();
break;
}
#ifdef USE_FREEIMAGE
FreeImage_Initialise();
FIBITMAP *bitmap = FreeImage_Allocate(WIDTH, HEIGHT, 32, FI_RGBA_RED_MASK,
FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
if (bitmap) {
// bitmap successfully created!
// Calculate the number of bytes per pixel (3 for 24-bit or 4 for 32-bit)
color *ptr = output_image;
int bytespp = FreeImage_GetLine(bitmap) / FreeImage_GetWidth(bitmap);
for(unsigned y = 0; y < FreeImage_GetHeight(bitmap); y++) {
BYTE *bits = FreeImage_GetScanLine(bitmap, y);
for(unsigned x = 0; x < FreeImage_GetWidth(bitmap); x++) {
// Set pixel color to green with a transparency of 128
*ptr = vector_clamp(*ptr, 0.f, 1.f);
bits[FI_RGBA_RED] = ptr->x*255;
bits[FI_RGBA_GREEN] = ptr->y*255;
bits[FI_RGBA_BLUE] = ptr->z*255;
bits[FI_RGBA_ALPHA] = 255;
// jump to next pixel
bits += bytespp;
ptr++;
}
}
// FreeImage_Save(FREE_IMAGE_FORMAT fif, FIBITMAP *dib, const char *filename, int flags FI_DEFAULT(0));
char filename[256];
strcpy(filename, basename);
strcat(filename, ".png");
if (FreeImage_Save(FIF_PNG, bitmap, filename, 0)) {
// bitmap successfully saved!
}
FreeImage_Unload(bitmap);
}
FreeImage_DeInitialise();
#endif
// le code ci dessous crée et sauvegarde une image sous le nom output.png dans le repertoire d'execution
{
FILE *fp = NULL;
char filename[256];
strcpy(filename, basename);
strcat(filename, ".ppm");
fp = fopen(filename, "w");
if (fp) {
// création réussi
fprintf(fp, "P3\n");
fprintf(fp, "%d %d\n255\n", WIDTH, HEIGHT);
// La c'est pour faire la boucle
for (unsigned y = 0; y < HEIGHT; y++) {
color *ptr = &(output_image[(HEIGHT - y - 1) * WIDTH]);
for (unsigned x = 0; x < WIDTH; x++) {
*ptr = vector_clamp(*ptr, 0.f, 1.f);
unsigned char r = ptr->x * 255;
unsigned char g = ptr->y * 255;
unsigned char b = ptr->z * 255;
ptr++;
fprintf(fp, "%d %d %d ", r, g, b);
}
fprintf(fp, "\n");
}
fclose(fp);
}
}
return 0;
}
static HBITMAP
GetDibSection(FIBITMAP *src, HDC hdc, int left, int top, int right, int bottom)
{
if(!src)
return NULL;
unsigned bpp = FreeImage_GetBPP(src);
if(bpp <=4)
return NULL;
// normalize the rectangle
if(right < left)
INPLACESWAP(left, right);
if(bottom < top)
INPLACESWAP(top, bottom);
// check the size of the sub image
int src_width = FreeImage_GetWidth(src);
int src_height = FreeImage_GetHeight(src);
int src_pitch = FreeImage_GetPitch(src);
if((left < 0) || (right > src_width) || (top < 0) || (bottom > src_height))
return NULL;
// allocate the sub image
int dst_width = (right - left);
int dst_height = (bottom - top);
BITMAPINFO *info = (BITMAPINFO *) malloc(sizeof(BITMAPINFO) + (FreeImage_GetColorsUsed(src) * sizeof(RGBQUAD)));
BITMAPINFOHEADER *bih = (BITMAPINFOHEADER *)info;
bih->biSize = sizeof(BITMAPINFOHEADER);
bih->biWidth = dst_width;
bih->biHeight = dst_height;
bih->biPlanes = 1;
bih->biBitCount = bpp;
bih->biCompression = BI_RGB;
bih->biSizeImage = 0;
bih->biXPelsPerMeter = 0;
bih->biYPelsPerMeter = 0;
bih->biClrUsed = 0; // Always use the whole palette.
bih->biClrImportant = 0;
// copy the palette
if(bpp < 16)
memcpy(info->bmiColors, FreeImage_GetPalette(src), FreeImage_GetColorsUsed(src) * sizeof(RGBQUAD));
BYTE *dst_bits;
HBITMAP hbitmap = CreateDIBSection(hdc, info, DIB_RGB_COLORS, (void **) &dst_bits, NULL, 0);
free(info);
if(hbitmap == NULL || dst_bits == NULL)
return NULL;
// get the pointers to the bits and such
BYTE *src_bits = FreeImage_GetScanLine(src, src_height - top - dst_height);
// calculate the number of bytes per pixel
unsigned bytespp = FreeImage_GetLine(src) / FreeImage_GetWidth(src);
// point to x = left
src_bits += (left * bytespp);
int dst_line = (dst_width * bpp + 7) / 8;
int dst_pitch = (dst_line + 3) & ~3;
for(int y = 0; y < dst_height; y++)
memcpy(dst_bits + (y * dst_pitch), src_bits + (y * src_pitch), dst_line);
return hbitmap;
}
/** @brief Perfoms an histogram transformation on a 8, 24 or 32-bit image
according to the values of a lookup table (LUT).
The transformation is done as follows.<br>
Image 8-bit : if the image has a color palette, the LUT is applied to this palette,
otherwise, it is applied to the grey values.<br>
Image 24-bit & 32-bit : if channel == FICC_RGB, the same LUT is applied to each color
plane (R,G, and B). Otherwise, the LUT is applied to the specified channel only.
@param src Input image to be processed.
@param LUT Lookup table. <b>The size of 'LUT' is assumed to be 256.</b>
@param channel The color channel to be processed (only used with 24 & 32-bit DIB).
@return Returns TRUE if successful, FALSE otherwise.
@see FREE_IMAGE_COLOR_CHANNEL
*/
BOOL DLL_CALLCONV
FreeImage_AdjustCurve(FIBITMAP *src, BYTE *LUT, FREE_IMAGE_COLOR_CHANNEL channel) {
unsigned x, y;
BYTE *bits = NULL;
if(!src || !LUT || (FreeImage_GetImageType(src) != FIT_BITMAP))
return FALSE;
int bpp = FreeImage_GetBPP(src);
if((bpp != 8) && (bpp != 24) && (bpp != 32))
return FALSE;
// apply the LUT
switch(bpp) {
case 8 :
{
// if the dib has a colormap, apply the LUT to it
// else, apply the LUT to pixel values
if(FreeImage_GetColorType(src) == FIC_PALETTE) {
RGBQUAD *rgb = FreeImage_GetPalette(src);
for (unsigned pal = 0; pal < FreeImage_GetColorsUsed(src); pal++) {
rgb->rgbRed = LUT[rgb->rgbRed];
rgb->rgbGreen = LUT[rgb->rgbGreen];
rgb->rgbBlue = LUT[rgb->rgbBlue];
rgb++;
}
}
else {
for(y = 0; y < FreeImage_GetHeight(src); y++) {
bits = FreeImage_GetScanLine(src, y);
for(x = 0; x < FreeImage_GetWidth(src); x++) {
bits[x] = LUT[ bits[x] ];
}
}
}
break;
}
case 24 :
case 32 :
{
int bytespp = FreeImage_GetLine(src) / FreeImage_GetWidth(src);
switch(channel) {
case FICC_RGB :
for(y = 0; y < FreeImage_GetHeight(src); y++) {
bits = FreeImage_GetScanLine(src, y);
for(x = 0; x < FreeImage_GetWidth(src); x++) {
bits[FI_RGBA_BLUE] = LUT[ bits[FI_RGBA_BLUE] ]; // B
bits[FI_RGBA_GREEN] = LUT[ bits[FI_RGBA_GREEN] ]; // G
bits[FI_RGBA_RED] = LUT[ bits[FI_RGBA_RED] ]; // R
bits += bytespp;
}
}
break;
case FICC_BLUE :
for(y = 0; y < FreeImage_GetHeight(src); y++) {
bits = FreeImage_GetScanLine(src, y);
for(x = 0; x < FreeImage_GetWidth(src); x++) {
bits[FI_RGBA_BLUE] = LUT[ bits[FI_RGBA_BLUE] ]; // B
bits += bytespp;
}
}
break;
case FICC_GREEN :
for(y = 0; y < FreeImage_GetHeight(src); y++) {
bits = FreeImage_GetScanLine(src, y);
for(x = 0; x < FreeImage_GetWidth(src); x++) {
bits[FI_RGBA_GREEN] = LUT[ bits[FI_RGBA_GREEN] ]; // G
bits += bytespp;
}
}
break;
case FICC_RED :
for(y = 0; y < FreeImage_GetHeight(src); y++) {
bits = FreeImage_GetScanLine(src, y);
for(x = 0; x < FreeImage_GetWidth(src); x++) {
bits[FI_RGBA_RED] = LUT[ bits[FI_RGBA_RED] ]; // R
bits += bytespp;
}
}
break;
case FICC_ALPHA :
if(32 == bpp) {
for(y = 0; y < FreeImage_GetHeight(src); y++) {
bits = FreeImage_GetScanLine(src, y);
for(x = 0; x < FreeImage_GetWidth(src); x++) {
bits[FI_RGBA_ALPHA] = LUT[ bits[FI_RGBA_ALPHA] ]; // A
bits += bytespp;
}
}
}
break;
default:
break;
}
break;
}
}
return TRUE;
}
unsigned DLL_CALLCONV
FreeImage_GetPitch(FIBITMAP *dib) {
return dib ? FreeImage_GetLine(dib) + 3 & ~3 : 0;
}
/** @brief Applies palette index mapping for one or several indices on a 1-, 4-
or 8-bit palletized image.
This function maps up to <i>count</i> palette indices specified in
<i>srcindices</i> to these specified in <i>dstindices</i>. Thereby, index
<i>srcindices[N]</i>, if present in the image, will be replaced by index
<i>dstindices[N]</i>. If parameter <i>swap</i> is TRUE, additionally all indices
specified in <i>dstindices</i> are also mapped to these specified in
<i>srcindices</i>.<br>
The function returns the number of pixels changed or zero, if no pixels were
changed.
Both arrays <i>srcindices</i> and <i>dstindices</i> are assumed not to hold less
than <i>count</i> indices.<br>
<b>Note, that this behaviour is different from what FreeImage_ApplyColorMapping()
does, which modifies the actual image data on palletized images.</b>
@param dib Input/output image to be processed.
@param srcindices Array of palette indices to be used as the mapping source.
@param dstindices Array of palette indices to be used as the mapping destination.
@param count The number of palette indices to be mapped. This is the size of both
<i>srcindices</i> and <i>dstindices</i>.
@param swap If TRUE, source and destination palette indices are swapped, that is,
each destination index is also mapped to the corresponding source index.
@return Returns the total number of pixels changed.
*/
unsigned DLL_CALLCONV
FreeImage_ApplyPaletteIndexMapping(FIBITMAP *dib, BYTE *srcindices, BYTE *dstindices, unsigned count, BOOL swap) {
unsigned result = 0;
if ((!dib) || (FreeImage_GetImageType(dib) != FIT_BITMAP)) {
return 0;
}
// validate parameters
if ((!srcindices) || (!dstindices)|| (count < 1)) {
return 0;
}
unsigned height = FreeImage_GetHeight(dib);
unsigned width = FreeImage_GetLine(dib);
BYTE *a, *b;
int bpp = FreeImage_GetBPP(dib);
switch (bpp) {
case 1: {
return result;
}
case 4: {
int skip_last = (FreeImage_GetWidth(dib) & 0x01);
unsigned max_x = width - 1;
for (unsigned y = 0; y < height; y++) {
BYTE *bits = FreeImage_GetScanLine(dib, y);
for (unsigned x = 0; x < width; x++) {
int start = ((skip_last) && (x == max_x)) ? 1 : 0;
for (int cn = start; cn < 2; cn++) {
for (unsigned j = 0; j < count; j++) {
a = srcindices;
b = dstindices;
for (int i = ((swap) ? 0 : 1); i < 2; i++) {
if (GET_NIBBLE(cn, bits[x]) == (a[j] & 0x0F)) {
SET_NIBBLE(cn, bits[x], b[j]);
result++;
j = count;
break;
}
a = dstindices;
b = srcindices;
}
}
}
}
}
return result;
}
case 8: {
for (unsigned y = 0; y < height; y++) {
BYTE *bits = FreeImage_GetScanLine(dib, y);
for (unsigned x = 0; x < width; x++) {
for (unsigned j = 0; j < count; j++) {
a = srcindices;
b = dstindices;
for (int i = ((swap) ? 0 : 1); i < 2; i++) {
if (bits[x] == a[j]) {
bits[x] = b[j];
result++;
j = count;
break;
}
a = dstindices;
b = srcindices;
}
}
}
}
return result;
}
default: {
return 0;
}
}
}
WORD fipImage::getLine() const {
return FreeImage_GetLine(_dib);
}
FIBITMAP * DLL_CALLCONV
FreeImage_ConvertToRGB16(FIBITMAP *dib) {
FIBITMAP *src = NULL;
FIBITMAP *dst = NULL;
if(!FreeImage_HasPixels(dib)) return NULL;
const FREE_IMAGE_TYPE src_type = FreeImage_GetImageType(dib);
// check for allowed conversions
switch(src_type) {
case FIT_BITMAP:
{
// convert to 24-bit if needed
if((FreeImage_GetBPP(dib) == 24) || (FreeImage_GetBPP(dib) == 32)) {
src = dib;
} else {
src = FreeImage_ConvertTo24Bits(dib);
if(!src) return NULL;
}
break;
}
case FIT_UINT16:
// allow conversion from unsigned 16-bit
src = dib;
break;
case FIT_RGB16:
// RGB16 type : clone the src
return FreeImage_Clone(dib);
break;
case FIT_RGBA16:
// allow conversion from 64-bit RGBA (ignore the alpha channel)
src = dib;
break;
default:
return NULL;
}
// allocate dst image
const unsigned width = FreeImage_GetWidth(src);
const unsigned height = FreeImage_GetHeight(src);
dst = FreeImage_AllocateT(FIT_RGB16, width, height);
if(!dst) {
if(src != dib) {
FreeImage_Unload(src);
}
return NULL;
}
// copy metadata from src to dst
FreeImage_CloneMetadata(dst, src);
// convert from src type to RGB16
switch(src_type) {
case FIT_BITMAP:
{
// Calculate the number of bytes per pixel (1 for 8-bit, 3 for 24-bit or 4 for 32-bit)
const unsigned bytespp = FreeImage_GetLine(src) / FreeImage_GetWidth(src);
for(unsigned y = 0; y < height; y++) {
const BYTE *src_bits = (BYTE*)FreeImage_GetScanLine(src, y);
FIRGB16 *dst_bits = (FIRGB16*)FreeImage_GetScanLine(dst, y);
for(unsigned x = 0; x < width; x++) {
dst_bits[x].red = src_bits[FI_RGBA_RED] << 8;
dst_bits[x].green = src_bits[FI_RGBA_GREEN] << 8;
dst_bits[x].blue = src_bits[FI_RGBA_BLUE] << 8;
src_bits += bytespp;
}
}
}
break;
case FIT_UINT16:
{
for(unsigned y = 0; y < height; y++) {
const WORD *src_bits = (WORD*)FreeImage_GetScanLine(src, y);
FIRGB16 *dst_bits = (FIRGB16*)FreeImage_GetScanLine(dst, y);
for(unsigned x = 0; x < width; x++) {
// convert by copying greyscale channel to each R, G, B channels
dst_bits[x].red = src_bits[x];
dst_bits[x].green = src_bits[x];
dst_bits[x].blue = src_bits[x];
}
}
}
break;
case FIT_RGBA16:
{
for(unsigned y = 0; y < height; y++) {
const FIRGBA16 *src_bits = (FIRGBA16*)FreeImage_GetScanLine(src, y);
FIRGB16 *dst_bits = (FIRGB16*)FreeImage_GetScanLine(dst, y);
for(unsigned x = 0; x < width; x++) {
// convert and skip alpha channel
dst_bits[x].red = src_bits[x].red;
dst_bits[x].green = src_bits[x].green;
dst_bits[x].blue = src_bits[x].blue;
}
}
}
break;
default:
break;
}
if(src != dib) {
FreeImage_Unload(src);
}
return dst;
}
FIBITMAP * DLL_CALLCONV
FreeImage_ConvertToRGBF(FIBITMAP *dib) {
FIBITMAP *src = NULL;
FIBITMAP *dst = NULL;
if(!FreeImage_HasPixels(dib)) return NULL;
const FREE_IMAGE_TYPE src_type = FreeImage_GetImageType(dib);
// check for allowed conversions
switch(src_type) {
case FIT_BITMAP:
{
// allow conversion from 24- and 32-bit
const FREE_IMAGE_COLOR_TYPE color_type = FreeImage_GetColorType(dib);
if((color_type != FIC_RGB) && (color_type != FIC_RGBALPHA)) {
src = FreeImage_ConvertTo24Bits(dib);
if(!src) return NULL;
} else {
src = dib;
}
break;
}
case FIT_UINT16:
// allow conversion from 16-bit
src = dib;
break;
case FIT_RGB16:
// allow conversion from 48-bit RGB
src = dib;
break;
case FIT_RGBA16:
// allow conversion from 64-bit RGBA (ignore the alpha channel)
src = dib;
break;
case FIT_FLOAT:
// allow conversion from 32-bit float
src = dib;
break;
case FIT_RGBAF:
// allow conversion from 128-bit RGBAF
src = dib;
break;
case FIT_RGBF:
// RGBF type : clone the src
return FreeImage_Clone(dib);
break;
default:
return NULL;
}
// allocate dst image
const unsigned width = FreeImage_GetWidth(src);
const unsigned height = FreeImage_GetHeight(src);
dst = FreeImage_AllocateT(FIT_RGBF, width, height);
if(!dst) {
if(src != dib) {
FreeImage_Unload(src);
}
return NULL;
}
// copy metadata from src to dst
FreeImage_CloneMetadata(dst, src);
// convert from src type to RGBF
const unsigned src_pitch = FreeImage_GetPitch(src);
const unsigned dst_pitch = FreeImage_GetPitch(dst);
switch(src_type) {
case FIT_BITMAP:
{
// calculate the number of bytes per pixel (3 for 24-bit or 4 for 32-bit)
const unsigned bytespp = FreeImage_GetLine(src) / FreeImage_GetWidth(src);
const BYTE *src_bits = (BYTE*)FreeImage_GetBits(src);
BYTE *dst_bits = (BYTE*)FreeImage_GetBits(dst);
for(unsigned y = 0; y < height; y++) {
const BYTE *src_pixel = (BYTE*)src_bits;
FIRGBF *dst_pixel = (FIRGBF*)dst_bits;
for(unsigned x = 0; x < width; x++) {
// convert and scale to the range [0..1]
dst_pixel->red = (float)(src_pixel[FI_RGBA_RED]) / 255.0F;
dst_pixel->green = (float)(src_pixel[FI_RGBA_GREEN]) / 255.0F;
dst_pixel->blue = (float)(src_pixel[FI_RGBA_BLUE]) / 255.0F;
src_pixel += bytespp;
dst_pixel ++;
}
src_bits += src_pitch;
dst_bits += dst_pitch;
}
}
break;
case FIT_UINT16:
{
const BYTE *src_bits = (BYTE*)FreeImage_GetBits(src);
BYTE *dst_bits = (BYTE*)FreeImage_GetBits(dst);
for(unsigned y = 0; y < height; y++) {
const WORD *src_pixel = (WORD*)src_bits;
FIRGBF *dst_pixel = (FIRGBF*)dst_bits;
for(unsigned x = 0; x < width; x++) {
// convert and scale to the range [0..1]
const float dst_value = (float)src_pixel[x] / 65535.0F;
dst_pixel[x].red = dst_value;
dst_pixel[x].green = dst_value;
dst_pixel[x].blue = dst_value;
}
src_bits += src_pitch;
dst_bits += dst_pitch;
}
}
break;
case FIT_RGB16:
{
const BYTE *src_bits = (BYTE*)FreeImage_GetBits(src);
BYTE *dst_bits = (BYTE*)FreeImage_GetBits(dst);
for(unsigned y = 0; y < height; y++) {
const FIRGB16 *src_pixel = (FIRGB16*) src_bits;
FIRGBF *dst_pixel = (FIRGBF*) dst_bits;
for(unsigned x = 0; x < width; x++) {
// convert and scale to the range [0..1]
dst_pixel[x].red = (float)(src_pixel[x].red) / 65535.0F;
dst_pixel[x].green = (float)(src_pixel[x].green) / 65535.0F;
dst_pixel[x].blue = (float)(src_pixel[x].blue) / 65535.0F;
}
src_bits += src_pitch;
dst_bits += dst_pitch;
}
}
break;
case FIT_RGBA16:
{
const BYTE *src_bits = (BYTE*)FreeImage_GetBits(src);
BYTE *dst_bits = (BYTE*)FreeImage_GetBits(dst);
for(unsigned y = 0; y < height; y++) {
const FIRGBA16 *src_pixel = (FIRGBA16*) src_bits;
FIRGBF *dst_pixel = (FIRGBF*) dst_bits;
for(unsigned x = 0; x < width; x++) {
// convert and scale to the range [0..1]
dst_pixel[x].red = (float)(src_pixel[x].red) / 65535.0F;
dst_pixel[x].green = (float)(src_pixel[x].green) / 65535.0F;
dst_pixel[x].blue = (float)(src_pixel[x].blue) / 65535.0F;
}
src_bits += src_pitch;
dst_bits += dst_pitch;
}
}
break;
case FIT_FLOAT:
{
const BYTE *src_bits = (BYTE*)FreeImage_GetBits(src);
BYTE *dst_bits = (BYTE*)FreeImage_GetBits(dst);
for(unsigned y = 0; y < height; y++) {
const float *src_pixel = (float*) src_bits;
FIRGBF *dst_pixel = (FIRGBF*) dst_bits;
for(unsigned x = 0; x < width; x++) {
// convert by copying greyscale channel to each R, G, B channels
// assume float values are in [0..1]
const float value = CLAMP(src_pixel[x], 0.0F, 1.0F);
dst_pixel[x].red = value;
dst_pixel[x].green = value;
dst_pixel[x].blue = value;
}
src_bits += src_pitch;
dst_bits += dst_pitch;
}
}
break;
case FIT_RGBAF:
{
const BYTE *src_bits = (BYTE*)FreeImage_GetBits(src);
BYTE *dst_bits = (BYTE*)FreeImage_GetBits(dst);
for(unsigned y = 0; y < height; y++) {
const FIRGBAF *src_pixel = (FIRGBAF*) src_bits;
FIRGBF *dst_pixel = (FIRGBF*) dst_bits;
for(unsigned x = 0; x < width; x++) {
// convert and skip alpha channel
dst_pixel[x].red = CLAMP(src_pixel[x].red, 0.0F, 1.0F);
dst_pixel[x].green = CLAMP(src_pixel[x].green, 0.0F, 1.0F);
dst_pixel[x].blue = CLAMP(src_pixel[x].blue, 0.0F, 1.0F);
}
src_bits += src_pitch;
dst_bits += dst_pitch;
}
}
break;
}
if(src != dib) {
FreeImage_Unload(src);
}
return dst;
}
/**
Copy or convert & copy decoded pixels into the dib
@param pDecoder Decoder handle
@param out_guid_format Target guid format
@param dib Output dib
@param width Image width
@param height Image height
@return Returns 0 if successful, returns ERR otherwise
*/
static ERR
CopyPixels(PKImageDecode *pDecoder, PKPixelFormatGUID out_guid_format, FIBITMAP *dib, int width, int height) {
PKFormatConverter *pConverter = NULL; // pixel format converter
ERR error_code = 0; // error code as returned by the interface
BYTE *pb = NULL; // local buffer used for pixel format conversion
// image dimensions
const PKRect rect = {0, 0, width, height};
try {
// get input file pixel format ...
PKPixelFormatGUID in_guid_format;
error_code = pDecoder->GetPixelFormat(pDecoder, &in_guid_format);
JXR_CHECK(error_code);
// is a format conversion needed ?
if(IsEqualGUID(out_guid_format, in_guid_format)) {
// no conversion, load bytes "as is" ...
// get a pointer to dst pixel data
BYTE *dib_bits = FreeImage_GetBits(dib);
// get dst pitch (count of BYTE for stride)
const unsigned cbStride = FreeImage_GetPitch(dib);
// decode and copy bits to dst array
error_code = pDecoder->Copy(pDecoder, &rect, dib_bits, cbStride);
JXR_CHECK(error_code);
}
else {
// we need to use the conversion API ...
// allocate the pixel format converter
error_code = PKCodecFactory_CreateFormatConverter(&pConverter);
JXR_CHECK(error_code);
// set the conversion function
error_code = pConverter->Initialize(pConverter, pDecoder, NULL, out_guid_format);
JXR_CHECK(error_code);
// get the maximum stride
unsigned cbStride = 0;
{
PKPixelInfo pPIFrom;
PKPixelInfo pPITo;
pPIFrom.pGUIDPixFmt = &in_guid_format;
error_code = PixelFormatLookup(&pPIFrom, LOOKUP_FORWARD);
JXR_CHECK(error_code);
pPITo.pGUIDPixFmt = &out_guid_format;
error_code = PixelFormatLookup(&pPITo, LOOKUP_FORWARD);
JXR_CHECK(error_code);
unsigned cbStrideFrom = ((pPIFrom.cbitUnit + 7) >> 3) * width;
unsigned cbStrideTo = ((pPITo.cbitUnit + 7) >> 3) * width;
cbStride = MAX(cbStrideFrom, cbStrideTo);
}
// allocate a local decoder / encoder buffer
error_code = PKAllocAligned((void **) &pb, cbStride * height, 128);
JXR_CHECK(error_code);
// copy / convert pixels
error_code = pConverter->Copy(pConverter, &rect, pb, cbStride);
JXR_CHECK(error_code);
// now copy pixels into the dib
const size_t line_size = FreeImage_GetLine(dib);
for(int y = 0; y < height; y++) {
BYTE *src_bits = (BYTE*)(pb + y * cbStride);
BYTE *dst_bits = (BYTE*)FreeImage_GetScanLine(dib, y);
memcpy(dst_bits, src_bits, line_size);
}
// free the local buffer
PKFreeAligned((void **) &pb);
// free the pixel format converter
PKFormatConverter_Release(&pConverter);
}
// FreeImage DIB are upside-down relative to usual graphic conventions
FreeImage_FlipVertical(dib);
// post-processing ...
// -------------------
// swap RGB as needed
#if FREEIMAGE_COLORORDER == FREEIMAGE_COLORORDER_BGR
if(IsEqualGUID(out_guid_format, GUID_PKPixelFormat24bppRGB) || IsEqualGUID(out_guid_format, GUID_PKPixelFormat32bppRGB)) {
SwapRedBlue32(dib);
}
#elif FREEIMAGE_COLORORDER == FREEIMAGE_COLORORDER_RGB
if(IsEqualGUID(out_guid_format, GUID_PKPixelFormat24bppBGR) || IsEqualGUID(out_guid_format, GUID_PKPixelFormat32bppBGR)) {
SwapRedBlue32(dib);
}
#endif
return WMP_errSuccess;
} catch(...) {
// free the local buffer
PKFreeAligned((void **) &pb);
// free the pixel format converter
PKFormatConverter_Release(&pConverter);
return error_code;
}
}
