static int
mp730_fill_buffer (pixma_t * s, pixma_imagebuf_t * ib)
{
int error, n;
mp730_t *mp = (mp730_t *) s->subdriver;
unsigned block_size, bytes_received;
uint8_t header[16];
do
{
do
{
if (s->cancel)
return PIXMA_ECANCELED;
if (mp->last_block) /* end of image */
return 0;
error = read_image_block (s, header, mp->imgbuf + mp->imgbuf_len);
if (error < 0)
return error;
bytes_received = error;
block_size = pixma_get_be16 (header + 4);
mp->last_block = ((header[2] & 0x28) == 0x28);
if (mp->last_block)
{ /* end of image */
mp->state = state_finished;
}
if ((header[2] & ~0x38) != 0)
{
PDBG (pixma_dbg (1, "WARNING: Unexpected result header\n"));
PDBG (pixma_hexdump (1, header, 16));
}
PASSERT (bytes_received == block_size);
if (block_size == 0)
{
/* no image data at this moment. */
/*pixma_sleep(100000); *//* FIXME: too short, too long? */
handle_interrupt (s, 100);
}
}
while (block_size == 0);
/* TODO: simplify! */
mp->imgbuf_len += bytes_received;
n = mp->imgbuf_len / s->param->line_size;
/* n = number of full lines (rows) we have in the buffer. */
if (n != 0)
{
if (s->param->channels != 1 &&
s->cfg->pid != MF5730_PID &&
s->cfg->pid != MF5750_PID &&
s->cfg->pid != MF5770_PID &&
s->cfg->pid != MF3110_PID &&
s->cfg->pid != IR1020_PID)
{
/* color, and not an MF57x0 nor MF3110 */
pack_rgb (mp->imgbuf, n, mp->raw_width, mp->lbuf);
}
else
/* grayscale/lineart or MF57x0 or MF3110 */
memcpy (mp->lbuf, mp->imgbuf, n * s->param->line_size);
block_size = n * s->param->line_size;
mp->imgbuf_len -= block_size;
memcpy (mp->imgbuf, mp->imgbuf + block_size, mp->imgbuf_len);
}
}
while (n == 0);
ib->rptr = mp->lbuf;
ib->rend = mp->lbuf + block_size;
return ib->rend - ib->rptr;
}
/***********
set_color
returns true if USB was inserted, false otherwise
color is a pointer to the colour (in native format) to modify
set banned_color to -1 to allow all
***********/
bool set_color(struct screen *display, char *title,
unsigned *color, unsigned banned_color)
{
int exit = 0, slider = 0;
struct rgb_pick rgb;
rgb.color = *color;
while (!exit)
{
int button;
unpack_rgb(&rgb);
if (display != NULL)
{
draw_screen(display, title, &rgb, slider);
}
else
{
FOR_NB_SCREENS(i)
draw_screen(&screens[i], title, &rgb, slider);
}
button = get_action(CONTEXT_SETTINGS_COLOURCHOOSER, TIMEOUT_BLOCK);
#ifdef HAVE_TOUCHSCREEN
if (button == ACTION_TOUCHSCREEN
&& display->screen_type == SCREEN_MAIN)
button = touchscreen_slider(display, &rgb, &slider);
#endif
switch (button)
{
case ACTION_STD_PREV:
case ACTION_STD_PREVREPEAT:
slider = (slider + 2) % 3;
break;
case ACTION_STD_NEXT:
case ACTION_STD_NEXTREPEAT:
slider = (slider + 1) % 3;
break;
case ACTION_SETTINGS_INC:
case ACTION_SETTINGS_INCREPEAT:
if (rgb.rgb_val[slider] < rgb_max[slider])
rgb.rgb_val[slider]++;
pack_rgb(&rgb);
break;
case ACTION_SETTINGS_DEC:
case ACTION_SETTINGS_DECREPEAT:
if (rgb.rgb_val[slider] > 0)
rgb.rgb_val[slider]--;
pack_rgb(&rgb);
break;
case ACTION_STD_OK:
if (banned_color != (unsigned)-1 &&
banned_color == rgb.color)
{
splash(HZ*2, ID2P(LANG_COLOR_UNACCEPTABLE));
break;
}
*color = rgb.color;
exit = 1;
break;
case ACTION_STD_CANCEL:
exit = 1;
break;
default:
if (default_event_handler(button) == SYS_USB_CONNECTED)
return true;
break;
}
}
return false;
}
static int
iclass_fill_buffer (pixma_t * s, pixma_imagebuf_t * ib)
{
int error, n;
iclass_t *mf = (iclass_t *) s->subdriver;
unsigned block_size, lines_size, first_block_size;
uint8_t info;
/*
* 1. send a block request cmd (d4 20 00... 04 00 06)
* 2. examine the response for block size and/or end-of-scan flag
* 3. read the block one chunk at a time
* 4. repeat until have enough to process >=1 lines
*/
do
{
do
{
if (s->cancel)
return PIXMA_ECANCELED;
if (mf->last_block)
{
/* end of image */
mf->state = state_finished;
return 0;
}
first_block_size = 0;
error = request_image_block (s, 4, &info, &block_size,
mf->blkptr + mf->blk_len, &first_block_size);
/* add current block to remainder of previous */
mf->blk_len += first_block_size;
if (error < 0)
{
/* NOTE: seen in traffic logs but don't know the meaning. */
read_error_info (s, NULL, 0);
if (error == PIXMA_ECANCELED)
return error;
}
/* info: 0x28 = end; 0x38 = end + ADF empty */
mf->last_block = info & 0x38;
if ((info & ~0x38) != 0)
{
PDBG (pixma_dbg (1, "WARNING: Unexpected result header\n"));
PDBG (pixma_hexdump (1, &info, 1));
}
if (block_size == 0)
{
/* no image data at this moment. */
/*pixma_sleep(100000); *//* FIXME: too short, too long? */
handle_interrupt (s, 100);
}
}
while (block_size == 0 && first_block_size == 0);
error = read_image_block (s, mf->blkptr + mf->blk_len, block_size);
block_size = error;
if (error < 0)
return error;
/* add current block to remainder of previous */
mf->blk_len += block_size;
/* n = number of full lines (rows) we have in the buffer. */
n = mf->blk_len / s->param->line_size;
if (n != 0)
{
if (s->param->channels != 1 &&
s->cfg->pid != MF3010_PID &&
s->cfg->pid != MF4410_PID &&
s->cfg->pid != MF4770_PID &&
s->cfg->pid != MF4550_PID &&
s->cfg->pid != MF4600_PID &&
s->cfg->pid != MF6500_PID &&
s->cfg->pid != MF8030_PID)
{
/* color and not MF46xx or MF65xx */
pack_rgb (mf->blkptr, n, mf->raw_width, mf->lineptr);
}
else
{
/* grayscale */
memcpy (mf->lineptr, mf->blkptr, n * s->param->line_size);
}
lines_size = n * s->param->line_size;
/* cull remainder and shift left */
mf->blk_len -= lines_size;
memcpy (mf->blkptr, mf->blkptr + lines_size, mf->blk_len);
}
}
while (n == 0);
/* output full lines, keep partial lines for next block */
ib->rptr = mf->lineptr;
ib->rend = mf->lineptr + lines_size;
return ib->rend - ib->rptr;
}
static int touchscreen_slider(struct screen *display,
struct rgb_pick *rgb,
int *selected_slider)
{
short x, y;
int char_height, line_height;
int max_label_width;
int text_top, slider_x, slider_width;
bool display_three_rows;
int button;
int pressed_slider;
struct viewport vp;
viewport_set_defaults(&vp, display->screen_type);
display->set_viewport(&vp);
button = action_get_touchscreen_press_in_vp(&x, &y, &vp);
if (button == ACTION_UNKNOWN || button == BUTTON_NONE)
return ACTION_NONE;
/* Get slider positions and top starting position
* need vp.y here, because of the statusbar, since touchscreen
* coordinates are absolute */
max_label_width = label_get_max_width(display);
char_height = display->getcharheight();
text_top = MARGIN_TOP + char_height +
TITLE_MARGIN_BOTTOM + SELECTOR_TB_MARGIN;
slider_x = SELECTOR_WIDTH + max_label_width + SLIDER_TEXT_MARGIN;
slider_width = vp.width - slider_x*2 - max_label_width;
line_height = char_height + 2*SELECTOR_TB_MARGIN;
/* same logic as in draw_screen */
/* Find out if there's enough room for three sliders or just
enough to display the selected slider - calculate total height
of display with three sliders present */
display_three_rows =
vp.height >=
text_top + line_height*3 + /* Title + 3 sliders */
SWATCH_TOP_MARGIN + /* at least 2 lines */
char_height*2 + /* + margins for bottom */
MARGIN_BOTTOM; /* colored rectangle */
display->set_viewport(NULL);
if (y < text_top)
{
if (button == BUTTON_REL)
return ACTION_STD_CANCEL;
else
return ACTION_NONE;
}
if (y >= text_top + line_height * (display_three_rows ? 3:1))
{ /* touching the color area means accept */
if (button == BUTTON_REL)
return ACTION_STD_OK;
else
return ACTION_NONE;
}
/* y is relative to the original viewport */
pressed_slider = (y - text_top)/line_height;
if (pressed_slider != *selected_slider)
*selected_slider = pressed_slider;
/* add max_label_width to overcome integer division limits,
* cap value later since that may lead to an overflow */
if (x < slider_x + (slider_width+max_label_width) && x > slider_x)
{
char computed_val;
x -= slider_x;
computed_val = (x*rgb_max[pressed_slider]/(slider_width));
rgb->rgb_val[pressed_slider] =
MIN(computed_val,rgb_max[pressed_slider]);
pack_rgb(rgb);
}
return ACTION_NONE;
}
