X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/424f5e27007ebf54b3b186e48d05d1c039c8e6ea..3bdc265d9d49ac78cb5000fbf3d694ed93d0e665:/src/common/xpmdecod.cpp diff --git a/src/common/xpmdecod.cpp b/src/common/xpmdecod.cpp index 68a56d1788..3b33170ab7 100644 --- a/src/common/xpmdecod.cpp +++ b/src/common/xpmdecod.cpp @@ -131,14 +131,14 @@ wxImage wxXPMDecoder::ReadFile(wxInputStream& stream) { size_t length = stream.GetSize(); wxCHECK_MSG(length != 0, wxNullImage, wxT("Cannot read XPM from stream of unknown size")); - + char *xpm_buffer = new char[length]; char *p, *q; size_t i; if ( stream.Read(xpm_buffer, length).LastError() != wxSTREAM_NO_ERROR ) return FALSE; - + /* * Remove comments from the file: */ @@ -178,7 +178,7 @@ wxImage wxXPMDecoder::ReadFile(wxInputStream& stream) i = 0; for (p = xpm_buffer; *p != '\0'; p++) { - if ( *p != '"' ) + if ( *p != '"' ) continue; for (q = p + 1; *q != '\0'; q++) if (*q == '"') @@ -189,40 +189,44 @@ wxImage wxXPMDecoder::ReadFile(wxInputStream& stream) p = q + 1; } xpm_buffer[i] = '\0'; - + /* * Create array of lines and convert \n's to \0's: */ const char **xpm_lines; size_t lines_cnt = 0; size_t line; - + for (p = xpm_buffer; *p != '\0'; p++) { - if ( *p == '\n' ) + if ( *p == '\n' ) lines_cnt++; } - + xpm_lines = new const char*[lines_cnt]; xpm_lines[0] = xpm_buffer; line = 1; for (p = xpm_buffer; (*p != '\0') && (line < lines_cnt); p++) { - if ( *p == '\n' ) + if ( *p == '\n' ) { xpm_lines[line] = p + 1; *p = '\0'; line++; } } - + /* * Read the image: */ wxImage img = ReadData(xpm_lines); - + delete[] xpm_buffer; +#ifdef __WIN16__ + delete[] (char**) xpm_lines; +#else delete[] xpm_lines; +#endif return img; } #endif // wxUSE_STREAMS @@ -243,7 +247,7 @@ wxImage wxXPMDecoder::ReadFile(wxInputStream& stream) \*****************************************************************************/ -typedef struct +typedef struct { char *name; wxUint32 rgb; @@ -491,6 +495,25 @@ static rgbRecord theRGBRecords[] = }; static int numTheRGBRecords = 234; +static unsigned char ParseHexadecimal(char digit1, char digit2) +{ + unsigned char i1, i2; + + if (digit1 >= 'a') + i1 = digit1 - 'a' + 0x0A; + else if (digit1 >= 'A') + i1 = digit1 - 'A' + 0x0A; + else + i1 = digit1 - '0'; + if (digit2 >= 'a') + i2 = digit2 - 'a' + 0x0A; + else if (digit2 >= 'A') + i2 = digit2 - 'A' + 0x0A; + else + i2 = digit2 - '0'; + return (0x10 * i1 + i2); +} + static bool GetRGBFromName(const char *inname, bool *isNone, unsigned char *r, unsigned char*g, unsigned char *b) { @@ -503,16 +526,10 @@ static bool GetRGBFromName(const char *inname, bool *isNone, // #rrggbb are not in database, we parse them directly if ( *inname == '#' && strlen(inname) == 7 ) { - char buf[3]; - buf[2] = 0; - buf[0] = inname[1]; buf[1] = inname[2]; - *r = (unsigned char) wxHexToDec(buf); - buf[0] = inname[3]; buf[1] = inname[4]; - *g = (unsigned char) wxHexToDec(buf); - buf[0] = inname[5]; buf[1] = inname[6]; - *b = (unsigned char) wxHexToDec(buf); + *r = ParseHexadecimal(inname[1], inname[2]); + *g = ParseHexadecimal(inname[3], inname[4]); + *b = ParseHexadecimal(inname[5], inname[6]); *isNone = FALSE; - return TRUE; } @@ -522,7 +539,7 @@ static bool GetRGBFromName(const char *inname, bool *isNone, // lot of gray... // so first extract ' ' - while ((p = strchr(name, ' '))) + while ((p = strchr(name, ' ')) != NULL) { while (*(p)) // till eof of string { @@ -532,7 +549,7 @@ static bool GetRGBFromName(const char *inname, bool *isNone, } // fold to lower case p = name; - while (*p) + while (*p) { *p = tolower(*p); p++; @@ -540,7 +557,7 @@ static bool GetRGBFromName(const char *inname, bool *isNone, // substitute Grey with Gray, else rgbtab.h would have more than 100 // 'duplicate' entries - if ( (grey = strstr(name, "grey")) ) + if ( (grey = strstr(name, "grey")) != NULL ) grey[2] = 'a'; // check for special 'none' colour: @@ -553,25 +570,25 @@ static bool GetRGBFromName(const char *inname, bool *isNone, // binary search: left = 0; right = numTheRGBRecords - 1; - do + do { middle = (left + right) / 2; cmp = strcmp(name, theRGBRecords[middle].name); if ( cmp == 0 ) { rgbVal = theRGBRecords[middle].rgb; - *r = (rgbVal >> 16) & 0xFF; - *g = (rgbVal >> 8) & 0xFF; - *b = (rgbVal) & 0xFF; + *r = (unsigned char)((rgbVal >> 16) & 0xFF); + *g = (unsigned char)((rgbVal >> 8) & 0xFF); + *b = (unsigned char)((rgbVal) & 0xFF); *isNone = FALSE; free(name); return TRUE; - } - else if ( cmp < 0 ) + } + else if ( cmp < 0 ) { right = middle - 1; - } - else + } + else { // > 0 left = middle + 1; } @@ -583,7 +600,7 @@ static bool GetRGBFromName(const char *inname, bool *isNone, static const char *ParseColor(const char *data) { - static const char *targets[] = + static const char *targets[] = {"c ", "g ", "g4 ", "m ", "b ", "s ", NULL}; const char *p, *r; @@ -630,11 +647,12 @@ wxImage wxXPMDecoder::ReadData(const char **xpm_data) bool hasMask; wxXPMColourMapData *clr_data; wxHashTable clr_tbl(wxKEY_STRING); - + /* * Read hints and initialize structures: */ - count = sscanf(xpm_data[0], "%u %u %u %u", + + count = sscanf(xpm_data[0], "%u %u %u %u", &width, &height, &colors_cnt, &chars_per_pixel); if ( count != 4 || width * height * colors_cnt == 0 ) { @@ -646,7 +664,7 @@ wxImage wxXPMDecoder::ReadData(const char **xpm_data) // 92 possible values on each position, 92^64 is *way* larger space than // 8bit RGB... wxCHECK_MSG(chars_per_pixel < 64, wxNullImage, wxT("XPM colormaps this large not supported.")); - + img.Create(width, height); if ( !img.Ok() ) return img; @@ -654,7 +672,7 @@ wxImage wxXPMDecoder::ReadData(const char **xpm_data) key[chars_per_pixel] = '\0'; hasMask = FALSE; clr_tbl.DeleteContents(TRUE); - + /* * Create colour map: */ @@ -672,7 +690,7 @@ wxImage wxXPMDecoder::ReadData(const char **xpm_data) else { bool isNone; - if ( !GetRGBFromName(clr_def, &isNone, + if ( !GetRGBFromName(clr_def, &isNone, &clr_data->R, &clr_data->G, &clr_data->B) ) { wxLogError(_("XPM: malformed colour definition '%s'!"), xpm_data[1+i]); @@ -689,7 +707,7 @@ wxImage wxXPMDecoder::ReadData(const char **xpm_data) } else { - if ( hasMask && clr_data->R == 255 && + if ( hasMask && clr_data->R == 255 && clr_data->G == 0 && clr_data->B == 255 ) clr_data->B = 254; } @@ -701,13 +719,13 @@ wxImage wxXPMDecoder::ReadData(const char **xpm_data) /* * Parse image data: */ - + unsigned char *img_data = img.GetData(); for (j = 0; j < height; j++) { for (i = 0; i < width; i++, img_data += 3) { - memcpy(key, + memcpy(key, xpm_data[1 + colors_cnt + j] + chars_per_pixel * i, chars_per_pixel); clr_data = (wxXPMColourMapData*) clr_tbl.Get(key);