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Diffstat (limited to 'src/im_format_led.cpp')
| -rw-r--r-- | src/im_format_led.cpp | 360 |
1 files changed, 360 insertions, 0 deletions
diff --git a/src/im_format_led.cpp b/src/im_format_led.cpp new file mode 100644 index 0000000..d67ee8c --- /dev/null +++ b/src/im_format_led.cpp @@ -0,0 +1,360 @@ +/** \file + * \brief LED - IUP image in LED + * + * See Copyright Notice in im_lib.h + * $Id: im_format_led.cpp,v 1.1 2008/10/17 06:10:16 scuri Exp $ + */ + +#include "im_format.h" +#include "im_format_all.h" +#include "im_util.h" +#include "im_counter.h" + +#include "im_binfile.h" + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <memory.h> + +/* Sample LED Image +LEDImage = IMAGE[ +0 = "0 0 0", +1 = "192 192 192", +2 = "0 0 128", +3 = "255 255 255"] +(20, 19 +,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 +,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 +,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 +,1,1,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1 +,1,1,0,3,3,3,3,0,0,1,1,1,1,1,1,1,1,1,1,1 +,1,1,0,3,3,3,3,0,3,0,1,1,1,1,1,1,1,1,1,1 +,1,1,0,3,0,0,3,0,2,2,2,2,2,2,1,1,1,1,1,1 +,1,1,0,3,3,3,3,3,2,3,3,3,3,2,2,1,1,1,1,1 +,1,1,0,3,0,0,0,0,2,3,3,3,3,2,3,2,1,1,1,1 +,1,1,0,3,3,3,3,3,2,3,0,0,3,2,2,2,2,1,1,1 +,1,1,0,3,0,0,0,0,2,3,3,3,3,3,3,3,2,1,1,1 +,1,1,0,3,3,3,3,3,2,3,0,0,0,0,0,3,2,1,1,1 +,1,1,0,0,0,0,0,0,2,3,3,3,3,3,3,3,2,1,1,1 +,1,1,1,1,1,1,1,1,2,3,0,0,0,0,0,3,2,1,1,1 +,1,1,1,1,1,1,1,1,2,3,3,3,3,3,3,3,2,1,1,1 +,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,1,1,1 +,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 +,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 +,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 +) +*/ + +static int iLEDReadNextInteger(imBinFile* handle, int *value) +{ + int c = 0, found = 0; + static char buffer[10]; + + while (!found) + { + imBinFileRead(handle, &buffer[c], 1, 1); + + /* if it's a number increments the number of characters readed */ + if (buffer[c] >= (int)'0' && buffer[c] <= (int)'9') + c++; + else + { + /* if it's not a number and we readed some characters convert them to an integer */ + if (c > 0) + { + buffer[c] = 0; + *value = atoi(buffer); + found = 1; + } + } + + if (imBinFileError(handle) || c > 10) + return 0; + } + + return 1; +} + +static const char* iLEDCompTable[1] = +{ + "NONE" +}; + +class imFormatLED: public imFormat +{ + imBinFile* handle; /* the binary file handle */ + int pal_count; + + int ReadPalette(); + int WritePalette(); + +public: + imFormatLED() + :imFormat("LED", + "IUP image in LED special format", + "*.led;", + iLEDCompTable, + 1, + 0) + {} + ~imFormatLED() {} + + int Open(const char* file_name); + int New(const char* file_name); + void Close(); + void* Handle(int index); + int ReadImageInfo(int index); + int ReadImageData(void* data); + int WriteImageInfo(); + int WriteImageData(void* data); + int CanWrite(const char* compression, int color_mode, int data_type) const; +}; + +void imFormatRegisterLED(void) +{ + imFormatRegister(new imFormatLED()); +} + +int imFormatLED::Open(const char* file_name) +{ + char sig[4]; + unsigned char byte_value; + int found = 0; + + /* opens the binary file for reading */ + handle = imBinFileOpen(file_name); + if (!handle) + return IM_ERR_OPEN; + + this->image_count = 1; + strcpy(this->compression, "NONE"); + + imBinFileRead(handle, sig, 3, 1); + sig[3] = 0; + + if (imBinFileError(handle)) + { + imBinFileClose(handle); + return IM_ERR_ACCESS; + } + + if (!imStrEqual(sig, "LED")) + { + imBinFileClose(handle); + return IM_ERR_FORMAT; + } + + unsigned long offset = imBinFileTell(handle); + + /* count the number of colors */ + this->pal_count = -1; // will count the first '=' that is not a color + while (!found) + { + imBinFileRead(handle, &byte_value, 1, 1); + + if (byte_value == '(') + found = 1; + + if (byte_value == '=') + this->pal_count++; + + if (imBinFileError(handle)) + { + imBinFileClose(handle); + return IM_ERR_ACCESS; + } + } + + imBinFileSeekTo(handle, offset); + + return IM_ERR_NONE; +} + +int imFormatLED::New(const char* file_name) +{ + /* opens the binary file for writing */ + handle = imBinFileNew(file_name); + if (!handle) + return IM_ERR_OPEN; + + imBinFileWrite(handle, (void*)"LEDImage = IMAGE", 16, 1); + + /* tests if everything was ok */ + if (imBinFileError(handle)) + { + imBinFileClose(handle); + return IM_ERR_ACCESS; + } + + return IM_ERR_NONE; +} + +void imFormatLED::Close() +{ + imBinFileClose(handle); +} + +void* imFormatLED::Handle(int index) +{ + if (index == 0) + return (void*)this->handle; + else + return NULL; +} + +int imFormatLED::ReadImageInfo(int index) +{ + (void)index; + + this->palette_count = this->pal_count; + + if (ReadPalette() != IM_ERR_NONE) + return IM_ERR_ACCESS; + + iLEDReadNextInteger(handle, &this->width); + iLEDReadNextInteger(handle, &this->height); + + if (imBinFileError(handle)) + return IM_ERR_ACCESS; + + this->file_data_type = IM_BYTE; + this->file_color_mode = IM_MAP; + this->file_color_mode |= IM_TOPDOWN; + + return IM_ERR_NONE; +} + +int imFormatLED::WriteImageInfo() +{ + this->file_data_type = IM_BYTE; + this->file_color_mode = imColorModeSpace(this->user_color_mode); + this->file_color_mode |= IM_TOPDOWN; + + if (WritePalette() != IM_ERR_NONE) + return IM_ERR_ACCESS; + + imBinFilePrintf(handle, "(%d, %d\n", this->width, this->height); + + return IM_ERR_NONE; +} + +int imFormatLED::ReadPalette() +{ + int c, r, g, b, i; + + /* convert the color map to the IM format */ + for (c = 0; c < this->palette_count; c++) + { + iLEDReadNextInteger(handle, &i); + iLEDReadNextInteger(handle, &r); + iLEDReadNextInteger(handle, &g); + iLEDReadNextInteger(handle, &b); + + this->palette[i] = imColorEncode((unsigned char)r, (unsigned char)g, (unsigned char)b); + + if (imBinFileError(handle)) + return IM_ERR_ACCESS; + } + + return IM_ERR_NONE; +} + +int imFormatLED::WritePalette() +{ + int c; + unsigned char r, g, b; + + imBinFileWrite(handle, (void*)"[\n", 2, 1); + + /* convert the color map from the IM format */ + for (c = 0; c < this->palette_count; c++) + { + imColorDecode(&r, &g, &b, this->palette[c]); + imBinFilePrintf(handle, "%d = \"%d %d %d\"", c, (int)r, (int)g, (int)b); + + if (c != this->palette_count - 1) + imBinFileWrite(handle, (void*)",\n", 2, 1); + } + + imBinFileWrite(handle, (void*)"]\n", 2, 1); + + if (imBinFileError(handle)) + return IM_ERR_ACCESS; + + return IM_ERR_NONE; +} + +int imFormatLED::ReadImageData(void* data) +{ + int value; + + imCounterTotal(this->counter, this->height, "Reading LED..."); + + for (int row = 0; row < this->height; row++) + { + for (int col = 0; col < this->width; col++) + { + if (!iLEDReadNextInteger(handle, &value)) + return IM_ERR_ACCESS; + + ((imbyte*)this->line_buffer)[col] = (unsigned char)value; + } + + imFileLineBufferRead(this, data, row, 0); + + if (!imCounterInc(this->counter)) + return IM_ERR_COUNTER; + } + + return IM_ERR_NONE; +} + +int imFormatLED::WriteImageData(void* data) +{ + imCounterTotal(this->counter, this->height, "Writing LED..."); + + for (int row = 0; row < this->height; row++) + { + imFileLineBufferWrite(this, data, row, 0); + + for (int col = 0; col < this->width; col++) + { + imBinFilePrintf(handle, ",%d", (int)((imbyte*)this->line_buffer)[col]); + } + + imBinFileWrite(handle, (void*)"\n", 1, 1); + if (imBinFileError(handle)) + return IM_ERR_ACCESS; + + if (!imCounterInc(this->counter)) + return IM_ERR_COUNTER; + } + + imBinFileWrite(handle, (void*)")", 1, 1); + if (imBinFileError(handle)) + return IM_ERR_ACCESS; + + return IM_ERR_NONE; +} + +int imFormatLED::CanWrite(const char* compression, int color_mode, int data_type) const +{ + int color_space = imColorModeSpace(color_mode); + + if (color_space == IM_YCBCR || color_space == IM_LAB || + color_space == IM_LUV || color_space == IM_XYZ || + color_space == IM_CMYK) + return IM_ERR_DATA; + + if (data_type != IM_BYTE) + return IM_ERR_DATA; + + if (!compression || compression[0] == 0) + return IM_ERR_NONE; + + if (!imStrEqual(compression, "NONE")) + return IM_ERR_COMPRESS; + + return IM_ERR_NONE; +} |