hl-pcl.c File Reference

Create printer's wire data for HL monochrome laser printers in PCL mode. More...

Functions
static void	hl_pcl_mode_job_start (struct hl_drv *t, struct hl_job_options *j)
static int	hl_pcl_mode_1030_page_encode (struct hl_drv *t)
static int	hl_pcl_mode_1027_1200dpi_page_encode (struct hl_drv *t)
static int	hl_pcl_mode_1027_page_encode (struct hl_drv *t)
static void	hl_pcl_mode_page_finish (struct hl_drv *t)
static void	hl_pcl_mode_job_finish (struct hl_drv *t)

Variables
const struct hl_encoder_calls	pcl_1027_calls
const struct hl_encoder_calls	pcl_1030_calls

Function Documentation

hl_pcl_mode_job_start()

static void hl_pcl_mode_job_start ( struct hl_drv *  t, struct hl_job_options *  j  )

static

Precondition

The printer is in PCL mode

hl_pcl_mode_1030_page_encode()

static int hl_pcl_mode_1030_page_encode ( struct hl_drv *  t )

static

Encode the full page according to the 1030 method

Parameters

[in,out]

t

Driver info

Return values

0	on success
-errno	on failures

The 1030 mode is the preferred one, due to its better compression. Okay, a litte bit better than the 1027 mode...

Precondition

Printer must be in PCL mode

hl_pcl_mode_1027_1200dpi_page_encode()

static int hl_pcl_mode_1027_1200dpi_page_encode ( struct hl_drv *  t )

static

Encode the full page according to the 1027 method in 1200 DPI (aka 'HQ1200')

Parameters

[in,out]

t

Job info

Return values

0	on success
-errno	on failures

For the HQ1200 print mode it makes no sense to rasterize the graphics at 1200 x 1200 DPI. 1200 x 600 DPI is enough.

Because the HQ1200 mode is special, as it has 1200 DPI only in the horizontal direction. The vertical direction has still only 600 DPI. But: We must send every line twice.

This routine is a special variant of hl_pcl_mode_1027_page_encode() which sends every line twice: one encoded in a regular manner and the second as a copy of the first one.

hl_pcl_mode_1027_page_encode()

static int hl_pcl_mode_1027_page_encode ( struct hl_drv *  t )

static

Encode the full page according to the 1027 method

Parameters

[in,out]

t

Job info

Return values

0	on success
-errno	on failures

hl_pcl_mode_page_finish()

static void hl_pcl_mode_page_finish ( struct hl_drv *  t )

static

Precondition

Printer must be in PCL mode

hl_pcl_mode_job_finish()

static void hl_pcl_mode_job_finish ( struct hl_drv *  t )

static

Precondition

Printer must be in PCL mode

Postcondition

The printer is in PJL mode

Variable Documentation

pcl_1027_calls

const struct hl_encoder_calls pcl_1027_calls

Initial value:

= {
    .encoder = HL_PRN_LANG_PCL,
    .job_start = hl_pcl_mode_job_start,
    .job_finish = hl_pcl_mode_job_finish,
    .page_encode = hl_pcl_mode_1027_page_encode,
    .page_finish = hl_pcl_mode_page_finish,
}

pcl_1030_calls

const struct hl_encoder_calls pcl_1030_calls

Initial value:

= {
    .encoder = HL_PRN_LANG_PCL,
    .job_start = hl_pcl_mode_job_start,
    .job_finish = hl_pcl_mode_job_finish,
    .page_encode = hl_pcl_mode_1030_page_encode,
    .page_finish = hl_pcl_mode_page_finish,
}