//--------------------------------------------------------------------//
// M e t h o d //
// g e n e r a t e I m a g e T r a i l e r //
//--------------------------------------------------------------------//
// //
// Write image termination sequences to output file. //
// //
//--------------------------------------------------------------------//
private static void generateImageTrailer(BinaryWriter prnWriter)
{
PCLWriter.rasterEnd(prnWriter);
PCLWriter.palettePushPop(prnWriter, PCLWriter.ePushPop.Pop);
}
//--------------------------------------------------------------------//
// M e t h o d //
// g e n e r a t e I m a g e H e a d e r //
//--------------------------------------------------------------------//
// //
// Write image initialisation sequences to output file. //
// //
//--------------------------------------------------------------------//
private static void generateImageHeader(BinaryWriter prnWriter,
UInt16 srcBitsPerPixel,
Int32 srcWidth,
Int32 srcHeight,
Int32 srcResX,
Int32 srcResY,
Single destPosX,
Single destPosY,
Int32 destScalePercentX,
Int32 destScalePercentY,
Int32 rasterResolution,
UInt32 srcPaletteEntries,
Boolean srcBlackWhite)
{
Int16 coordX,
coordY;
UInt32 paletteEntries = 0;
Byte bitsPerIndex = 0x00;
Boolean indexed = true;
//----------------------------------------------------------------//
// //
// Set position. //
// //
//----------------------------------------------------------------//
coordX = (Int16)(destPosX * 600);
coordY = (Int16)(destPosY * 600);
PCLWriter.palettePushPop(prnWriter, PCLWriter.ePushPop.Push);
PCLWriter.cursorPosition(prnWriter, coordX, coordY);
//----------------------------------------------------------------//
// //
// Set colour space, etc. //
// //
// Note that we only support the following bitmap types: //
// //
// - 1-bit black and white: //
// Colour space: Gray (1 plane) //
// Encoding: indirect-pixel //
// Palette: elements = 2 (= 2^1) //
// planes = 1 //
// length = 2 (= 2 * 1) bytes. //
// Image data: Each image pixel is defined by 1 bit //
// which is used an an index into the //
// 2-element palette. //
// //
// - 1-bit colour //
// Colour space: RGB (3 plane) //
// Encoding: indirect-pixel //
// Palette: elements = 2 (= 2^1) //
// planes = 3 //
// length = 6 (= 2 * 3) bytes. //
// Image data: Each image pixel is defined by 1 bit //
// which is used an an index into the //
// 2-element palette. //
// //
// - 4-bit: //
// Colour space: RGB (3-plane) //
// Encoding: indirect-pixel //
// Palette: elements = 16 (= 2^4) //
// planes = 3 //
// length = 48 (= 16 * 3) bytes. //
// Image data: Each group of 4 bits defines an image //
// pixel by use as an index into the //
// 16-element palette. //
// //
// - 24-bit: //
// Colour space: RGB (3-plane) //
// Encoding: direct-pixel //
// Palette: none //
// Image data: Each group of 24 bits defines an image //
// pixel as three 8-bit values, directly //
// specifying the RGB values. //
// //
//----------------------------------------------------------------//
if (srcBlackWhite)
{
indexed = true;
bitsPerIndex = 0x01;
paletteEntries = 0;
}
else if (srcBitsPerPixel == 1)
{
indexed = true;
bitsPerIndex = 0x01;
// paletteEntries = 0x00000001 << 1;
paletteEntries = srcPaletteEntries;
}
else if (srcBitsPerPixel == 4)
{
indexed = true;
bitsPerIndex = 0x04;
// paletteEntries = 0x00000001 << 4;
paletteEntries = srcPaletteEntries;
}
else if (srcBitsPerPixel == 24)
{
indexed = false;
bitsPerIndex = 0x00;
paletteEntries = 0;
}
if (srcBlackWhite)
{
PCLWriter.paletteSimple(prnWriter, PCLWriter.eSimplePalette.K);
}
else
{
if (indexed)
{
PCLWriter.configureImageData(prnWriter,
0x02, // ColourSpace = sRGB
0x01, // PEM = Indexed by Pixel
bitsPerIndex,
0x00, // Not used
0x00, // Bits per component
0x00); // Bits per component
}
else
{
PCLWriter.configureImageData(prnWriter,
0x02, // ColourSpace = sRGB
0x03, // PEM = Direct by Pixel
0x00, // Not used
0x08, // Bits per component
0x08, // Bits per component
0x08); // Bits per component
}
if (paletteEntries != 0)
{
Byte red = 0x00,
green = 0x00,
blue = 0x00;
for (Int16 i = 0; i < paletteEntries; i++)
{
ToolImageBitmapCore.getBmpPaletteEntry(i,
ref red,
ref green,
ref blue);
PCLWriter.paletteEntry(prnWriter, i, red, green, blue);
}
}
}
//----------------------------------------------------------------//
// //
// Generate raster definition and start sequences. //
// //
//----------------------------------------------------------------//
PCLWriter.rasterResolution(prnWriter,
rasterResolution,
true);
PCLWriter.rasterBegin(prnWriter,
srcWidth,
srcHeight,
srcResX,
srcResY,
destScalePercentX,
destScalePercentY,
0);
}