Diffstat (limited to 'noncore/apps/opie-reader/Palm2QImage.cpp') (more/less context) (show whitespace changes)
-rw-r--r-- | noncore/apps/opie-reader/Palm2QImage.cpp | 55 |
1 files changed, 33 insertions, 22 deletions
diff --git a/noncore/apps/opie-reader/Palm2QImage.cpp b/noncore/apps/opie-reader/Palm2QImage.cpp index 9339595..b0d4e00 100644 --- a/noncore/apps/opie-reader/Palm2QImage.cpp +++ b/noncore/apps/opie-reader/Palm2QImage.cpp @@ -1,28 +1,35 @@ /* -*- mode: c; indent-tabs-mode: nil; -*- */ + +/* OPIE */ +#include <opie2/odebug.h> + +/* QT */ +#include <qimage.h> + +/* STD */ #include <stdio.h> #include <stdlib.h> #include <string.h> #ifndef _WINDOWS #include <unistd.h> /* for link */ #endif #include <sys/types.h> #include <sys/stat.h> #include <stdarg.h> -#include <qimage.h> /***********************************************************************/ /***********************************************************************/ /***** *****/ /***** Code to decode the Palm image format to JPEG *****/ /***** *****/ /***********************************************************************/ /***********************************************************************/ #define READ_BIGENDIAN_SHORT(p) (((p)[0] << 8)|((p)[1])) #define READ_BIGENDIAN_LONG(p) (((p)[0] << 24)|((p)[1] << 16)|((p)[2] << 8)|((p)[3])) #define PALM_IS_COMPRESSED_FLAG 0x8000 #define PALM_HAS_COLORMAP_FLAG 0x4000 #define PALM_HAS_TRANSPARENCY_FLAG 0x2000 #define PALM_DIRECT_COLOR_FLAG 0x0400 @@ -128,181 +135,185 @@ QImage* Palm2QImage *imagedatastart, *palmimage; ColorMapEntry *colormap; palmimage = image_bytes_in; width = READ_BIGENDIAN_SHORT(palmimage + 0); height = READ_BIGENDIAN_SHORT(palmimage + 2); bytes_per_row = READ_BIGENDIAN_SHORT(palmimage + 4); flags = READ_BIGENDIAN_SHORT(palmimage + 6); bits_per_pixel = palmimage[8]; version = palmimage[9]; next_depth_offset = READ_BIGENDIAN_SHORT(palmimage + 10); transparent_index = palmimage[12]; compression_type = palmimage[13]; /* bytes 14 and 15 are reserved by Palm and always 0 */ #if 0 -// qDebug ("Palm image is %dx%d, %d bpp, version %d, flags 0x%x, compression %d", width, height, bits_per_pixel, version, flags, compression_type); +// odebug << "Palm image is " << width << "x" << height +// << ", " << bits_per_pixel << " bpp, version " << version +// << ", flags 0x" << flags << ", compression " << compression_type << oendl; #endif if (compression_type == PALM_COMPRESSION_PACKBITS) { -// qDebug ("Image uses packbits compression; not yet supported"); +// odebug << "Image uses packbits compression; not yet supported" << oendl; return NULL; } else if ((compression_type != PALM_COMPRESSION_NONE) && (compression_type != PALM_COMPRESSION_RLE) && (compression_type != PALM_COMPRESSION_SCANLINE)) { -// qDebug ("Image uses unknown compression, code 0x%x", compression_type); +// odebug << "Image uses unknown compression, code 0x" << compression_type << oendl; return NULL; } /* as of PalmOS 4.0, there are 6 different kinds of Palm pixmaps: 1, 2, or 4 bit grayscale 8-bit StaticColor using the Palm standard colormap 8-bit PseudoColor using a user-specified colormap 16-bit DirectColor using 5 bits for red, 6 for green, and 5 for blue Each of these can be compressed with one of four compression schemes, "RLE", "Scanline", "PackBits", or none. We begin by constructing the colormap. */ if (flags & PALM_HAS_COLORMAP_FLAG) { -// qDebug("Palm images with custom colormaps are not currently supported.\n"); +// odebug << "Palm images with custom colormaps are not currently supported." << oendl; return NULL; } else if (bits_per_pixel == 1) { colormap = Palm1BitColormap; imagedatastart = palmimage + 16; } else if (bits_per_pixel == 2) { colormap = Palm2BitColormap; imagedatastart = palmimage + 16; } else if (bits_per_pixel == 4) { colormap = Palm4BitColormap; imagedatastart = palmimage + 16; } else if (bits_per_pixel == 8) { colormap = Palm8BitColormap; imagedatastart = palmimage + 16; } else if (bits_per_pixel == 16 && (flags & PALM_DIRECT_COLOR_FLAG)) { colormap = NULL; palm_red_bits = palmimage[16]; palm_green_bits = palmimage[17]; palm_blue_bits = palmimage[18]; -// qDebug("Bits:%d, %d, %d", palm_red_bits, palm_green_bits, palm_blue_bits); +// odebug << "Bits:" << palm_red_bits << ", " << palm_green_bits << ", " << palm_blue_bits << oendl; if (palm_blue_bits > 8 || palm_green_bits > 8 || palm_red_bits > 8) { -// qDebug("Can't handle this format DirectColor image -- too wide in some color (%d:%d:%d)\n", palm_red_bits, palm_green_bits, palm_blue_bits); +// odebug << "Can't handle this format DirectColor image -- too wide in some color (" +// << palm_red_bits << ":" << palm_green_bits << ":" << palm_blue_bits << oendl; return NULL; } if (bits_per_pixel > (8 * sizeof(unsigned long))) { -// qDebug ("Can't handle this format DirectColor image -- too many bits per pixel (%d)\n", bits_per_pixel); +// odebug << "Can't handle this format DirectColor image -- too many bits per pixel (" +// << bits_per_pixel << ")" << oendl; return NULL; } imagedatastart = palmimage + 24; } else { -// qDebug("Unknown bits-per-pixel of %d encountered.\n", bits_per_pixel); +// odebug << "Unknown bits-per-pixel of " << bits_per_pixel << " encountered" << oendl; return NULL; } #ifndef USEQPE QImage* qimage = new QImage(width, height, 32); #else QImage* qimage = new QImage(width, height, 16); #endif /* row by row, uncompress the Palm image and copy it to the JPEG buffer */ rowbuf = new unsigned char[bytes_per_row * width]; lastrow = new unsigned char[bytes_per_row * width]; for (i=0, palm_ptr = imagedatastart , x_ptr = imagedata; i < height; ++i) { -// qDebug("inval:%x palm_ptr:%x x_ptr:%x bpr:%x", inval, palm_ptr, x_ptr, bytes_per_row); +// odebug << "inval:" << inval << " palm_ptr:" << palm_ptr << " x_ptr:" << x_ptr +// << " bpr:" << bytes_per_row << oendl; /* first, uncompress the Palm image */ if ((flags & PALM_IS_COMPRESSED_FLAG) && (compression_type == PALM_COMPRESSION_RLE)) { for (j = 0; j < bytes_per_row; ) { incount = *palm_ptr++; inval = *palm_ptr++; memset(rowbuf + j, inval, incount); j += incount; } } else if ((flags & PALM_IS_COMPRESSED_FLAG) && (compression_type == PALM_COMPRESSION_SCANLINE)) { for (j = 0; j < bytes_per_row; j += 8) { incount = *palm_ptr++; inval = ((bytes_per_row - j) < 8) ? (bytes_per_row - j) : 8; for (inbit = 0; inbit < inval; inbit += 1) { if (incount & (1 << (7 - inbit))) rowbuf[j + inbit] = *palm_ptr++; else rowbuf[j + inbit] = lastrow[j + inbit]; } } memcpy (lastrow, rowbuf, bytes_per_row); } else if (((flags & PALM_IS_COMPRESSED_FLAG) && (compression_type == PALM_COMPRESSION_NONE)) || ((flags & PALM_IS_COMPRESSED_FLAG) == 0)) { memcpy (rowbuf, palm_ptr, bytes_per_row); palm_ptr += bytes_per_row; } else { - qDebug("Case 4"); - qDebug("Is compressed:%s", ((flags & PALM_IS_COMPRESSED_FLAG) == 0) ? "false" : "true"); - qDebug("Has colourmap:%s", ((flags & PALM_HAS_COLORMAP_FLAG) == 0) ? "false" : "true"); - qDebug("Has transparency:%s", ((flags & PALM_HAS_TRANSPARENCY_FLAG) == 0) ? "false" : "true"); - qDebug("Direct colour:%s", ((flags & PALM_DIRECT_COLOR_FLAG) == 0) ? "false" : "true"); - qDebug("four byte field:%s", ((flags & PALM_4_BYTE_FIELD_FLAG) == 0) ? "false" : "true"); + odebug << "Case 4" << oendl; + odebug << "Is compressed:" << (((flags & PALM_IS_COMPRESSED_FLAG) == 0) ? "false" : "true") << oendl; + odebug << "Has colourmap:" << (((flags & PALM_HAS_COLORMAP_FLAG) == 0) ? "false" : "true") << oendl; + odebug << "Has transparency:" << (((flags & PALM_HAS_TRANSPARENCY_FLAG) == 0) ? "false" : "true") << oendl; + odebug << "Direct colour:" << (((flags & PALM_DIRECT_COLOR_FLAG) == 0) ? "false" : "true") << oendl; + odebug << "four byte field:" << (((flags & PALM_4_BYTE_FIELD_FLAG) == 0) ? "false" : "true") << oendl; memcpy (rowbuf, palm_ptr, bytes_per_row); palm_ptr += bytes_per_row; } /* next, write it to the GDK bitmap */ if (colormap) { mask = (1 << bits_per_pixel) - 1; for (inbit = 8 - bits_per_pixel, inbyte = rowbuf, j = 0; j < width; ++j) { inval = ((*inbyte) & (mask << inbit)) >> inbit; /* correct for oddity of the 8-bit color Palm pixmap... */ if ((bits_per_pixel == 8) && (inval == 0xFF)) inval = 231; /* now lookup the correct color and set the pixel in the GTK bitmap */ QRgb colour = qRgb(colormap[inval].red, colormap[inval].green, colormap[inval].blue); qimage->setPixel(j, i, colour); if (!inbit) { ++inbyte; inbit = 8 - bits_per_pixel; } else { inbit -= bits_per_pixel; } } } else if (!colormap && bits_per_pixel == 16) { for (inbyte = rowbuf, j = 0; j < width; ++j) { inval = ((unsigned short)inbyte[0] << (unsigned short)8) | inbyte[1]; /* - qDebug ("pixel is %d,%d (%d:%d:%d)", - j, i, - ((inval >> (bits_per_pixel - palm_red_bits)) & ((1 << palm_red_bits) - 1)) << (8-palm_red_bits), - ((inval >> palm_blue_bits) & ((1 << palm_green_bits) - 1)) << (8-palm_green_bits), - ((inval >> 0) & ((1 << palm_blue_bits) - 1)) << (8-palm_blue_bits)); + odebug << "pixel is " << j << "," << i << " (" + << (((inval >> (bits_per_pixel - palm_red_bits)) & ((1 << palm_red_bits) - 1)) << (8-palm_red_bits)) << ":" + << (((inval >> palm_blue_bits) & ((1 << palm_green_bits) - 1)) << (8-palm_green_bits)) << ":" + << (((inval >> 0) & ((1 << palm_blue_bits) - 1)) << (8-palm_blue_bits)) << ")" << oendl; */ QRgb colour = qRgb( ((inval >> (bits_per_pixel - palm_red_bits)) & ((1 << palm_red_bits) - 1)) << (8-palm_red_bits), ((inval >> palm_blue_bits) & ((1 << palm_green_bits) - 1)) << (8-palm_green_bits), ((inval >> 0) & ((1 << palm_blue_bits) - 1)) << (8-palm_blue_bits)); qimage->setPixel(j, i, colour); inbyte += 2; } } } delete [] rowbuf; delete [] lastrow; return qimage; } QImage* hRule(int w, int h, unsigned char r, unsigned char g, unsigned char b) { -//// qDebug("hrule [%d, %d]", w, h); +// odebug << "hrule [" << w << ", " << h << "]" << oendl; QPixmap* qimage = new QPixmap(w, h); qimage->fill(QColor(r,g,b)); QImage* ret = new QImage(qimage->convertToImage()); delete qimage; return ret; } |