Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-11 05:33:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

[media] vivid-tpg: move the 'extras' drawing to a separate function

Browse Source 
This moves the drawing code for the extras (border, square, etc) to
a function of its own instead of having this in the main for loop.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Hans Verkuil 2015-03-09 11:47:48 -03:00 committed by Mauro Carvalho Chehab
parent 07386b9ab1
commit c6ff1c1b5b
1 changed files with 104 additions and 112 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

216
drivers/media/platform/vivid/vivid-tpg.c
View File

@ -1594,6 +1594,105 @@ static void tpg_fill_params_extras(const struct tpg_data *tpg,
(params->is_60hz ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
}
static void tpg_fill_plane_extras(const struct tpg_data *tpg,
const struct tpg_draw_params *params,
unsigned p, unsigned h, u8 *vbuf)
{
unsigned twopixsize = params->twopixsize;
unsigned img_width = params->img_width;
unsigned frame_line = params->frame_line;
const struct v4l2_rect *sq = &tpg->square;
const struct v4l2_rect *b = &tpg->border;
const struct v4l2_rect *c = &tpg->crop;
if (params->is_tv && !params->is_60hz &&
frame_line == 0 && params->wss_width) {
/*
* Replace the first half of the top line of a 50 Hz frame
* with random data to simulate a WSS signal.
*/
u8 *wss = tpg->random_line[p] + params->wss_random_offset;
memcpy(vbuf, wss, params->wss_width);
}
if (tpg->show_border && frame_line >= b->top &&
frame_line < b->top + b->height) {
unsigned bottom = b->top + b->height - 1;
unsigned left = params->left_pillar_width;
unsigned right = params->right_pillar_start;
if (frame_line == b->top || frame_line == b->top + 1 ||
frame_line == bottom || frame_line == bottom - 1) {
memcpy(vbuf + left, tpg->contrast_line[p],
right - left);
} else {
if (b->left >= c->left &&
b->left < c->left + c->width)
memcpy(vbuf + left,
tpg->contrast_line[p], twopixsize);
if (b->left + b->width > c->left &&
b->left + b->width <= c->left + c->width)
memcpy(vbuf + right - twopixsize,
tpg->contrast_line[p], twopixsize);
}
}
if (tpg->qual != TPG_QUAL_NOISE && frame_line >= b->top &&
frame_line < b->top + b->height) {
memcpy(vbuf, tpg->black_line[p], params->left_pillar_width);
memcpy(vbuf + params->right_pillar_start, tpg->black_line[p],
img_width - params->right_pillar_start);
}
if (tpg->show_square && frame_line >= sq->top &&
frame_line < sq->top + sq->height &&
sq->left < c->left + c->width &&
sq->left + sq->width >= c->left) {
unsigned left = sq->left;
unsigned width = sq->width;
if (c->left > left) {
width -= c->left - left;
left = c->left;
}
if (c->left + c->width < left + width)
width -= left + width - c->left - c->width;
left -= c->left;
left = tpg_hscale_div(tpg, p, left);
width = tpg_hscale_div(tpg, p, width);
memcpy(vbuf + left, tpg->contrast_line[p], width);
}
if (tpg->insert_sav) {
unsigned offset = tpg_hdiv(tpg, p, tpg->compose.width / 3);
u8 *p = vbuf + offset;
unsigned vact = 0, hact = 0;
p[0] = 0xff;
p[1] = 0;
p[2] = 0;
p[3] = 0x80 | (params->sav_eav_f << 6) |
(vact << 5) | (hact << 4) |
((hact ^ vact) << 3) |
((hact ^ params->sav_eav_f) << 2) |
((params->sav_eav_f ^ vact) << 1) |
(hact ^ vact ^ params->sav_eav_f);
}
if (tpg->insert_eav) {
unsigned offset = tpg_hdiv(tpg, p, tpg->compose.width * 2 / 3);
u8 *p = vbuf + offset;
unsigned vact = 0, hact = 1;
p[0] = 0xff;
p[1] = 0;
p[2] = 0;
p[3] = 0x80 | (params->sav_eav_f << 6) |
(vact << 5) | (hact << 4) |
((hact ^ vact) << 3) |
((hact ^ params->sav_eav_f) << 2) |
((params->sav_eav_f ^ vact) << 1) |
(hact ^ vact ^ params->sav_eav_f);
}
}
void tpg_fill_plane_buffer(struct tpg_data *tpg, v4l2_std_id std, unsigned p, u8 *vbuf)
{
struct tpg_draw_params params;
@ -1608,7 +1707,6 @@ void tpg_fill_plane_buffer(struct tpg_data *tpg, v4l2_std_id std, unsigned p, u8
unsigned line_offset;
unsigned stride;
unsigned factor = V4L2_FIELD_HAS_T_OR_B(tpg->field) ? 2 : 1;
u8 *orig_vbuf = vbuf;
/* Coarse scaling with Bresenham */
unsigned int_part = (tpg->crop.height / factor) / tpg->compose.height;
@ -1653,7 +1751,9 @@ void tpg_fill_plane_buffer(struct tpg_data *tpg, v4l2_std_id std, unsigned p, u8
u8 *linestart_top;
u8 *linestart_bottom;
frame_line = tpg_calc_frameline(tpg, src_y, tpg->field);
params.frame_line = tpg_calc_frameline(tpg, src_y, tpg->field);
params.frame_line_next = params.frame_line;
frame_line = params.frame_line;
even = !(frame_line & 1);
buf_line = tpg_calc_buffer_line(tpg, h, tpg->field);
src_y += int_part;
@ -1802,117 +1902,9 @@ void tpg_fill_plane_buffer(struct tpg_data *tpg, v4l2_std_id std, unsigned p, u8
memcpy(vbuf + buf_line * stride, linestart_older, img_width);
break;
}
}
vbuf = orig_vbuf;
vbuf += tpg_hdiv(tpg, p, tpg->compose.left);
src_y = 0;
error = 0;
for (h = 0; h < tpg->compose.height; h++) {
unsigned frame_line = tpg_calc_frameline(tpg, src_y, tpg->field);
unsigned buf_line = tpg_calc_buffer_line(tpg, h, tpg->field);
const struct v4l2_rect *sq = &tpg->square;
const struct v4l2_rect *b = &tpg->border;
const struct v4l2_rect *c = &tpg->crop;
src_y += int_part;
error += fract_part;
if (error >= tpg->compose.height) {
error -= tpg->compose.height;
src_y++;
}
if (vdiv > 1) {
if (h & 1)
continue;
buf_line /= vdiv;
}
if (params.is_tv && !params.is_60hz && frame_line == 0 && params.wss_width) {
/*
* Replace the first half of the top line of a 50 Hz frame
* with random data to simulate a WSS signal.
*/
u8 *wss = tpg->random_line[p] + params.wss_random_offset;
memcpy(vbuf + buf_line * stride, wss, params.wss_width);
}
if (tpg->show_border && frame_line >= b->top &&
frame_line < b->top + b->height) {
unsigned bottom = b->top + b->height - 1;
unsigned left = params.left_pillar_width;
unsigned right = params.right_pillar_start;
if (frame_line == b->top || frame_line == b->top + 1 ||
frame_line == bottom || frame_line == bottom - 1) {
memcpy(vbuf + buf_line * stride + left, tpg->contrast_line[p],
right - left);
} else {
if (b->left >= c->left &&
b->left < c->left + c->width)
memcpy(vbuf + buf_line * stride + left,
tpg->contrast_line[p], twopixsize);
if (b->left + b->width > c->left &&
b->left + b->width <= c->left + c->width)
memcpy(vbuf + buf_line * stride + right - twopixsize,
tpg->contrast_line[p], twopixsize);
}
}
if (tpg->qual != TPG_QUAL_NOISE && frame_line >= b->top &&
frame_line < b->top + b->height) {
memcpy(vbuf + buf_line * stride, tpg->black_line[p], params.left_pillar_width);
memcpy(vbuf + buf_line * stride + params.right_pillar_start, tpg->black_line[p],
img_width - params.right_pillar_start);
}
if (tpg->show_square && frame_line >= sq->top &&
frame_line < sq->top + sq->height &&
sq->left < c->left + c->width &&
sq->left + sq->width >= c->left) {
unsigned left = sq->left;
unsigned width = sq->width;
if (c->left > left) {
width -= c->left - left;
left = c->left;
}
if (c->left + c->width < left + width)
width -= left + width - c->left - c->width;
left -= c->left;
left = tpg_hscale_div(tpg, p, left);
width = tpg_hscale_div(tpg, p, width);
memcpy(vbuf + buf_line * stride + left, tpg->contrast_line[p], width);
}
if (tpg->insert_sav) {
unsigned offset = tpg_hdiv(tpg, p, tpg->compose.width / 3);
u8 *p = vbuf + buf_line * stride + offset;
unsigned vact = 0, hact = 0;
p[0] = 0xff;
p[1] = 0;
p[2] = 0;
p[3] = 0x80 | (params.sav_eav_f << 6) |
(vact << 5) | (hact << 4) |
((hact ^ vact) << 3) |
((hact ^ params.sav_eav_f) << 2) |
((params.sav_eav_f ^ vact) << 1) |
(hact ^ vact ^ params.sav_eav_f);
}
if (tpg->insert_eav) {
unsigned offset = tpg_hdiv(tpg, p, tpg->compose.width * 2 / 3);
u8 *p = vbuf + buf_line * stride + offset;
unsigned vact = 0, hact = 1;
p[0] = 0xff;
p[1] = 0;
p[2] = 0;
p[3] = 0x80 | (params.sav_eav_f << 6) |
(vact << 5) | (hact << 4) |
((hact ^ vact) << 3) |
((hact ^ params.sav_eav_f) << 2) |
((params.sav_eav_f ^ vact) << 1) |
(hact ^ vact ^ params.sav_eav_f);
}
tpg_fill_plane_extras(tpg, &params, p, h,
vbuf + buf_line * params.stride);
}
}