// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#include <string.h>
#if wxUSE_IOSTREAMH
-#include <fstream.h>
+# include <fstream.h>
#else
-#include <fstream>
-# ifdef _MSC_VER
- using namespace std;
-# endif
+# include <fstream>
#endif
#include <windows.h>
{
// wxMessageBox(message, "PNG error");
- longjmp(png_ptr->jmpbuf, 1);
+ longjmp(png_ptr->jmpbuf, 1);
}
wxPNGReader::wxPNGReader(void)
{
filetype = 0;
- RawImage = NULL; // Image data
+ RawImage = NULL; // Image data
- Width = 0; Height = 0; // Dimensions
- Depth = 0; // (bits x pixel)
- ColorType = 0; // Bit 1 = Palette used
- // Bit 2 = Color used
- // Bit 3 = Alpha used
+ Width = 0; Height = 0; // Dimensions
+ Depth = 0; // (bits x pixel)
+ ColorType = 0; // Bit 1 = Palette used
+ // Bit 2 = Color used
+ // Bit 3 = Alpha used
- EfeWidth = 0; // Efective Width
+ EfeWidth = 0; // Efective Width
lpbi = NULL;
bgindex = -1;
{
imageOK = FALSE;
filetype = 0;
- RawImage = NULL; // Image data
+ RawImage = NULL; // Image data
- Width = 0; Height = 0; // Dimensions
- Depth = 0; // (bits x pixel)
- ColorType = 0; // Bit 1 = Palette used
- // Bit 2 = Color used
- // Bit 3 = Alpha used
+ Width = 0; Height = 0; // Dimensions
+ Depth = 0; // (bits x pixel)
+ ColorType = 0; // Bit 1 = Palette used
+ // Bit 2 = Color used
+ // Bit 3 = Alpha used
- EfeWidth = 0; // Efective Width
+ EfeWidth = 0; // Efective Width
lpbi = NULL;
bgindex = -1;
if (lpbi) {
#ifdef __WIN16__
- GlobalFreePtr((unsigned int) lpbi);
+ GlobalFreePtr((unsigned int) lpbi);
#else
- GlobalFreePtr(lpbi);
+ GlobalFreePtr(lpbi);
#endif
-// delete Palette;
+// delete Palette;
}
RawImage = 0;
Palette = 0;
if (lpbi = DibCreate(Depth, Width, Height)) {
- RawImage = (ImagePointerType)DibPtr(lpbi);
- EfeWidth = (long)(((long)Width*Depth + 31) / 32) * 4;
+ RawImage = (ImagePointerType)DibPtr(lpbi);
+ EfeWidth = (long)(((long)Width*Depth + 31) / 32) * 4;
imageOK = TRUE;
}
}
{
if (lpbi) {
#ifdef __WIN16__
- GlobalFreePtr((unsigned int) lpbi);
+ GlobalFreePtr((unsigned int) lpbi);
#else
- GlobalFreePtr(lpbi);
+ GlobalFreePtr(lpbi);
#endif
- delete Palette;
+ delete Palette;
}
}
if (!Inside(x, y)) return FALSE;
if (Palette) {
- return Palette->GetRGB(GetIndex(x, y), r, g, b);
-/* PALETTEENTRY entry;
- ::GetPaletteEntries((HPALETTE) Palette->GetHPALETTE(), GetIndex(x, y), 1, &entry);
- *r = entry.peRed;
- *g = entry.peGreen;
- *b = entry.peBlue; */
+ return Palette->GetRGB(GetIndex(x, y), r, g, b);
+/* PALETTEENTRY entry;
+ ::GetPaletteEntries((HPALETTE) Palette->GetHPALETTE(), GetIndex(x, y), 1, &entry);
+ *r = entry.peRed;
+ *g = entry.peGreen;
+ *b = entry.peBlue; */
} else {
- ImagePointerType ImagePointer = RawImage + EfeWidth*y + (x*Depth >> 3);
- *b = ImagePointer[0];
- *g = ImagePointer[1];
- *r = ImagePointer[2];
+ ImagePointerType ImagePointer = RawImage + EfeWidth*y + (x*Depth >> 3);
+ *b = ImagePointer[0];
+ *g = ImagePointer[1];
+ *r = ImagePointer[2];
}
return TRUE;
}
if (ColorType & COLORTYPE_PALETTE)
{
- if (!Palette) return FALSE;
- SetIndex(x, y, Palette->GetPixel(r, g, b));
+ if (!Palette) return FALSE;
+ SetIndex(x, y, Palette->GetPixel(r, g, b));
} else {
- ImagePointerType ImagePointer = RawImage + EfeWidth*y + (x*Depth >> 3);
- ImagePointer[0] = b;
- ImagePointer[1] = g;
- ImagePointer[2] = r;
+ ImagePointerType ImagePointer = RawImage + EfeWidth*y + (x*Depth >> 3);
+ ImagePointer[0] = b;
+ ImagePointer[1] = g;
+ ImagePointer[2] = r;
}
return TRUE;
bool wxPNGReader::SetPalette(wxPalette* colourmap)
{
if (!colourmap)
- return FALSE;
+ return FALSE;
ColorType |= (COLORTYPE_PALETTE | COLORTYPE_COLOR);
Palette = colourmap;
return (DibSetUsage(lpbi, (HPALETTE) Palette->GetHPALETTE(), WXIMA_COLORS ) != 0);
{
Palette = new wxPalette();
if (!Palette)
- return FALSE;
+ return FALSE;
if (!g) g = r;
if (!b) b = g;
{
Palette = new wxPalette();
if (!Palette)
- return FALSE;
+ return FALSE;
byte r[256], g[256], b[256];
for(int i=0; i<n; i++)
{
- r[i] = rgb_struct[i].red;
- g[i] = rgb_struct[i].green;
- b[i] = rgb_struct[i].blue;
+ r[i] = rgb_struct[i].red;
+ g[i] = rgb_struct[i].green;
+ b[i] = rgb_struct[i].blue;
}
// Added by JACS copying from Andrew Davison's additions
// to GIF-reading code
bool wxPNGReader::InstantiateBitmap(wxBitmap *bitmap)
{
- HDC dc = ::CreateCompatibleDC(NULL);
+ HDC dc = ::CreateCompatibleDC(NULL);
- if (dc)
- {
+ if (dc)
+ {
// tmpBitmap is a dummy, to satisfy ::CreateCompatibleDC (it
// is a memory dc that must have a bitmap selected into it)
HDC dc2 = GetDC(NULL);
if ( Palette )
{
HPALETTE oldPal = ::SelectPalette(dc, (HPALETTE) Palette->GetHPALETTE(), FALSE);
- ::RealizePalette(dc);
+ ::RealizePalette(dc);
}
- HBITMAP hBitmap = ::CreateDIBitmap(dc, lpbi,
- CBM_INIT, RawImage, (LPBITMAPINFO) lpbi, DIB_PAL_COLORS);
+ HBITMAP hBitmap = ::CreateDIBitmap(dc, lpbi,
+ CBM_INIT, RawImage, (LPBITMAPINFO) lpbi, DIB_PAL_COLORS);
::SelectPalette(dc, NULL, TRUE);
::SelectObject(dc, oldBitmap);
wxMask *mask = CreateMask();
bitmap->SetMask(mask);
}
- return TRUE;
+ return TRUE;
}
else
{
return FALSE;
}
- }
- else
+ }
+ else
{
- return FALSE;
+ return FALSE;
}
}
// To get number of entries...
WORD count = 0;
::GetObject((HPALETTE) cmap->GetHPALETTE(), sizeof(WORD), &count);
-
+
LOGPALETTE* logPal = (LOGPALETTE*)
- new BYTE[sizeof(LOGPALETTE) + count*sizeof(PALETTEENTRY)];
+ new BYTE[sizeof(LOGPALETTE) + count*sizeof(PALETTEENTRY)];
logPal->palVersion = 0x300;
logPal->palNumEntries = count;
::GetPaletteEntries((HPALETTE) cmap->GetHPALETTE(), 0, count, logPal->palPalEntry);
-
+
HPALETTE hPalette = ::CreatePalette(logPal);
delete[] logPal;
{
HBITMAP hBitmap = ::CreateBitmap(GetWidth(), GetHeight(), 1, 1, NULL);
- HDC dc = ::CreateCompatibleDC(NULL);
+ HDC dc = ::CreateCompatibleDC(NULL);
HBITMAP oldBitmap = (HBITMAP) ::SelectObject(dc, hBitmap);
int bgIndex = GetBGIndex();
else
::SetPixel(dc, x, GetHeight() - y - 1, RGB(255, 255, 255));
- }
+ }
}
::SelectObject(dc, oldBitmap);
wxMask *mask = new wxMask;
int number_passes;
if (ImageFileName)
- strcpy(filename, ImageFileName);
+ strcpy(filename, ImageFileName);
- FILE *fp;
- png_struct *png_ptr;
+ FILE *fp;
+ png_struct *png_ptr;
png_info *info_ptr;
- wxPNGReaderIter iter(this);
-
- /* open the file */
- fp = fopen(filename, "rb");
- if (!fp)
- return FALSE;
-
- /* allocate the necessary structures */
- png_ptr = new (png_struct);
- if (!png_ptr)
- {
- fclose(fp);
- return FALSE;
- }
-
- info_ptr = new (png_info);
- if (!info_ptr)
- {
- fclose(fp);
- delete(png_ptr);
- return FALSE;
- }
- /* set error handling */
- if (setjmp(png_ptr->jmpbuf))
- {
- png_read_destroy(png_ptr, info_ptr, (png_info *)0);
- fclose(fp);
- delete(png_ptr);
- delete(info_ptr);
-
- /* If we get here, we had a problem reading the file */
- return FALSE;
- }
+ wxPNGReaderIter iter(this);
+
+ /* open the file */
+ fp = fopen(filename, "rb");
+ if (!fp)
+ return FALSE;
+
+ /* allocate the necessary structures */
+ png_ptr = new (png_struct);
+ if (!png_ptr)
+ {
+ fclose(fp);
+ return FALSE;
+ }
+
+ info_ptr = new (png_info);
+ if (!info_ptr)
+ {
+ fclose(fp);
+ delete(png_ptr);
+ return FALSE;
+ }
+ /* set error handling */
+ if (setjmp(png_ptr->jmpbuf))
+ {
+ png_read_destroy(png_ptr, info_ptr, (png_info *)0);
+ fclose(fp);
+ delete(png_ptr);
+ delete(info_ptr);
+
+ /* If we get here, we had a problem reading the file */
+ return FALSE;
+ }
//png_set_error(ima_png_error, NULL);
- /* initialize the structures, info first for error handling */
- png_info_init(info_ptr);
- png_read_init(png_ptr);
+ /* initialize the structures, info first for error handling */
+ png_info_init(info_ptr);
+ png_read_init(png_ptr);
- /* set up the input control */
- png_init_io(png_ptr, fp);
+ /* set up the input control */
+ png_init_io(png_ptr, fp);
- /* read the file information */
- png_read_info(png_ptr, info_ptr);
+ /* read the file information */
+ png_read_info(png_ptr, info_ptr);
- /* allocate the memory to hold the image using the fields
- of png_info. */
- png_color_16 my_background={ 0, 31, 127, 255, 0 };
+ /* allocate the memory to hold the image using the fields
+ of png_info. */
+ png_color_16 my_background={ 0, 31, 127, 255, 0 };
- if (info_ptr->valid & PNG_INFO_bKGD)
+ if (info_ptr->valid & PNG_INFO_bKGD)
{
- png_set_background(png_ptr, &(info_ptr->background),
- PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
+ png_set_background(png_ptr, &(info_ptr->background),
+ PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
if ( info_ptr->num_palette > 0 )
bgindex = info_ptr->background.index;
}
- else {
- png_set_background(png_ptr, &my_background,
- PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
+ else {
+ png_set_background(png_ptr, &my_background,
+ PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
// Added by JACS: guesswork!
if ( info_ptr->num_trans != 0 )
bgindex = info_ptr->num_trans - 1 ;
- }
+ }
- /* tell libpng to strip 16 bit depth files down to 8 bits */
- if (info_ptr->bit_depth == 16)
- png_set_strip_16(png_ptr);
+ /* tell libpng to strip 16 bit depth files down to 8 bits */
+ if (info_ptr->bit_depth == 16)
+ png_set_strip_16(png_ptr);
- int pixel_depth=(info_ptr->pixel_depth<24) ? info_ptr->pixel_depth: 24;
- Create(info_ptr->width, info_ptr->height, pixel_depth,
- info_ptr->color_type);
+ int pixel_depth=(info_ptr->pixel_depth<24) ? info_ptr->pixel_depth: 24;
+ Create(info_ptr->width, info_ptr->height, pixel_depth,
+ info_ptr->color_type);
- if (info_ptr->num_palette>0)
+ if (info_ptr->num_palette>0)
{
- SetPalette((int)info_ptr->num_palette, (rgb_color_struct*)info_ptr->palette);
+ SetPalette((int)info_ptr->num_palette, (rgb_color_struct*)info_ptr->palette);
+ }
+
+ int row_stride = info_ptr->width * ((pixel_depth+7)>>3);
+ // printf("P = %d D = %d RS= %d ", info_ptr->num_palette, info_ptr->pixel_depth,row_stride);
+// printf("CT = %d TRS = %d BD= %d ", info_ptr->color_type, info_ptr->valid & PNG_INFO_tRNS,info_ptr->bit_depth);
+
+ byte *row_pointers = new byte[row_stride];
+
+ /* turn on interlace handling */
+ if (info_ptr->interlace_type)
+ number_passes = png_set_interlace_handling(png_ptr);
+ else
+ number_passes = 1;
+// printf("NP = %d ", number_passes);
+
+ for (int pass=0; pass< number_passes; pass++) {
+ iter.upset();
+ int y=0;
+ do {
+// (unsigned char *)iter.GetRow();
+ if (info_ptr->interlace_type) {
+ if (pass>0)
+ iter.GetRow(row_pointers, row_stride);
+ png_read_row(png_ptr, row_pointers, NULL);
}
+ else
+ png_read_row(png_ptr, row_pointers, NULL);
+
+ iter.SetRow(row_pointers, row_stride);
+ y++;
+ } while(iter.PrevRow());
+// printf("Y=%d ",y);
+ }
+ delete[] row_pointers;
- int row_stride = info_ptr->width * ((pixel_depth+7)>>3);
- // printf("P = %d D = %d RS= %d ", info_ptr->num_palette, info_ptr->pixel_depth,row_stride);
-// printf("CT = %d TRS = %d BD= %d ", info_ptr->color_type, info_ptr->valid & PNG_INFO_tRNS,info_ptr->bit_depth);
-
- byte *row_pointers = new byte[row_stride];
-
- /* turn on interlace handling */
- if (info_ptr->interlace_type)
- number_passes = png_set_interlace_handling(png_ptr);
- else
- number_passes = 1;
-// printf("NP = %d ", number_passes);
-
- for (int pass=0; pass< number_passes; pass++) {
- iter.upset();
- int y=0;
- do {
-// (unsigned char *)iter.GetRow();
- if (info_ptr->interlace_type) {
- if (pass>0)
- iter.GetRow(row_pointers, row_stride);
- png_read_row(png_ptr, row_pointers, NULL);
- }
- else
- png_read_row(png_ptr, row_pointers, NULL);
-
- iter.SetRow(row_pointers, row_stride);
- y++;
- } while(iter.PrevRow());
-// printf("Y=%d ",y);
- }
- delete[] row_pointers;
-
- /* read the rest of the file, getting any additional chunks
- in info_ptr */
- png_read_end(png_ptr, info_ptr);
-
- /* clean up after the read, and free any memory allocated */
- png_read_destroy(png_ptr, info_ptr, (png_info *)0);
-
- /* free the structures */
- delete(png_ptr);
- delete(info_ptr);
-
- /* close the file */
- fclose(fp);
-
- /* that's it */
- return TRUE;
+ /* read the rest of the file, getting any additional chunks
+ in info_ptr */
+ png_read_end(png_ptr, info_ptr);
+
+ /* clean up after the read, and free any memory allocated */
+ png_read_destroy(png_ptr, info_ptr, (png_info *)0);
+
+ /* free the structures */
+ delete(png_ptr);
+ delete(info_ptr);
+
+ /* close the file */
+ fclose(fp);
+
+ /* that's it */
+ return TRUE;
}
bool wxPNGReader::SaveFile(char * ImageFileName)
{
if (ImageFileName)
- strcpy(filename, ImageFileName);
+ strcpy(filename, ImageFileName);
wxPNGReaderIter iter(this);
FILE *fp;
png_struct *png_ptr;
- png_info *info_ptr;
+ png_info *info_ptr;
/* open the file */
- fp = fopen(filename, "wb");
- if (!fp)
- return FALSE;
-
- /* allocate the necessary structures */
- png_ptr = new (png_struct);
- if (!png_ptr)
- {
- fclose(fp);
- return FALSE;
- }
-
- info_ptr = new (png_info);
- if (!info_ptr)
- {
- fclose(fp);
- delete(png_ptr);
- return FALSE;
- }
-
- /* set error handling */
- if (setjmp(png_ptr->jmpbuf))
- {
- png_write_destroy(png_ptr);
- fclose(fp);
- delete(png_ptr);
- delete(info_ptr);
-
- /* If we get here, we had a problem reading the file */
- return FALSE;
- }
+ fp = fopen(filename, "wb");
+ if (!fp)
+ return FALSE;
+
+ /* allocate the necessary structures */
+ png_ptr = new (png_struct);
+ if (!png_ptr)
+ {
+ fclose(fp);
+ return FALSE;
+ }
+
+ info_ptr = new (png_info);
+ if (!info_ptr)
+ {
+ fclose(fp);
+ delete(png_ptr);
+ return FALSE;
+ }
+
+ /* set error handling */
+ if (setjmp(png_ptr->jmpbuf))
+ {
+ png_write_destroy(png_ptr);
+ fclose(fp);
+ delete(png_ptr);
+ delete(info_ptr);
+
+ /* If we get here, we had a problem reading the file */
+ return FALSE;
+ }
//png_set_error(ima_png_error, NULL);
-// printf("writig pg %s ", filename);
+// printf("writig pg %s ", filename);
/* initialize the structures */
- png_info_init(info_ptr);
- png_write_init(png_ptr);
-
- int row_stride = GetWidth() * ((GetDepth()+7)>>3);
- /* set up the output control */
+ png_info_init(info_ptr);
+ png_write_init(png_ptr);
+
+ int row_stride = GetWidth() * ((GetDepth()+7)>>3);
+ /* set up the output control */
png_init_io(png_ptr, fp);
- /* set the file information here */
- info_ptr->width = GetWidth();
- info_ptr->height = GetHeight();
- info_ptr->pixel_depth = GetDepth();
- info_ptr->channels = (GetDepth()>8) ? 3: 1;
- info_ptr->bit_depth = GetDepth()/info_ptr->channels;
- info_ptr->color_type = GetColorType();
- info_ptr->compression_type = info_ptr->filter_type = info_ptr->interlace_type=0;
- info_ptr->valid = 0;
- info_ptr->rowbytes = row_stride;
+ /* set the file information here */
+ info_ptr->width = GetWidth();
+ info_ptr->height = GetHeight();
+ info_ptr->pixel_depth = GetDepth();
+ info_ptr->channels = (GetDepth()>8) ? 3: 1;
+ info_ptr->bit_depth = GetDepth()/info_ptr->channels;
+ info_ptr->color_type = GetColorType();
+ info_ptr->compression_type = info_ptr->filter_type = info_ptr->interlace_type=0;
+ info_ptr->valid = 0;
+ info_ptr->rowbytes = row_stride;
// printf("P = %d D = %d RS= %d GD= %d CH= %d ", info_ptr->pixel_depth, info_ptr->bit_depth, row_stride, GetDepth(), info_ptr->channels);
- /* set the palette if there is one */
- if ((GetColorType() & COLORTYPE_PALETTE) && GetPalette())
- {
-// printf("writing paleta[%d %d %x]",GetColorType() ,COLORTYPE_PALETTE, GetPalette());
- info_ptr->valid |= PNG_INFO_PLTE;
- info_ptr->palette = new png_color[256];
- info_ptr->num_palette = 256;
- for (int i=0; i<256; i++)
- GetPalette()->GetRGB(i, &info_ptr->palette[i].red, &info_ptr->palette[i].green, &info_ptr->palette[i].blue);
- }
-// printf("Paleta [%d %d %x]",GetColorType() ,COLORTYPE_PALETTE, GetPalette());
+ /* set the palette if there is one */
+ if ((GetColorType() & COLORTYPE_PALETTE) && GetPalette())
+ {
+// printf("writing paleta[%d %d %x]",GetColorType() ,COLORTYPE_PALETTE, GetPalette());
+ info_ptr->valid |= PNG_INFO_PLTE;
+ info_ptr->palette = new png_color[256];
+ info_ptr->num_palette = 256;
+ for (int i=0; i<256; i++)
+ GetPalette()->GetRGB(i, &info_ptr->palette[i].red, &info_ptr->palette[i].green, &info_ptr->palette[i].blue);
+ }
+// printf("Paleta [%d %d %x]",GetColorType() ,COLORTYPE_PALETTE, GetPalette());
/* optional significant bit chunk */
// info_ptr->valid |= PNG_INFO_sBIT;
// info_ptr->sig_bit = true_bit_depth;
- /* optional gamma chunk */
+ /* optional gamma chunk */
// info_ptr->valid |= PNG_INFO_gAMA;
// info_ptr->gamma = gamma;
- /* other optional chunks */
+ /* other optional chunks */
/* write the file information */
png_write_info(png_ptr, info_ptr);
/* set up the transformations you want. Note that these are
all optional. Only call them if you want them */
- /* shift the pixels up to a legal bit depth and fill in
+ /* shift the pixels up to a legal bit depth and fill in
as appropriate to correctly scale the image */
// png_set_shift(png_ptr, &(info_ptr->sig_bit));
- /* pack pixels into bytes */
+ /* pack pixels into bytes */
// png_set_packing(png_ptr);
- /* flip bgr pixels to rgb */
+ /* flip bgr pixels to rgb */
// png_set_bgr(png_ptr);
/* swap bytes of 16 bit files to most significant bit first */
/* If you are only writing one row at a time, this works */
- byte *row_pointers = new byte[row_stride];
- iter.upset();
- do {
-// (unsigned char *)iter.GetRow();
- iter.GetRow(row_pointers, row_stride);
- png_write_row(png_ptr, row_pointers);
- } while(iter.PrevRow());
-
+ byte *row_pointers = new byte[row_stride];
+ iter.upset();
+ do {
+// (unsigned char *)iter.GetRow();
+ iter.GetRow(row_pointers, row_stride);
+ png_write_row(png_ptr, row_pointers);
+ } while(iter.PrevRow());
+
delete[] row_pointers;
/* write the rest of the file */
png_write_end(png_ptr, info_ptr);
- /* clean up after the write, and free any memory allocated */
+ /* clean up after the write, and free any memory allocated */
png_write_destroy(png_ptr);
/* if you malloced the palette, free it here */
if (info_ptr->palette)
- delete[] (info_ptr->palette);
+ delete[] (info_ptr->palette);
- /* free the structures */
- delete(png_ptr);
- delete(info_ptr);
+ /* free the structures */
+ delete(png_ptr);
+ delete(info_ptr);
- /* close the file */
- fclose(fp);
+ /* close the file */
+ fclose(fp);
- /* that's it */
- return TRUE;
+ /* that's it */
+ return TRUE;
}
static int Power(int x, int y)
buf[1] = hexArray[secondDigit];
buf[2] = 0;
}
-
+
bool wxPNGReader::SaveXPM(char *filename, char *name)
{
projects / wxWidgets.git / blobdiff