openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

[media] vivid-tpg: add hor/vert downsampling support to tpg_gen_text 

This will just skip lines/pixels since color fidelity is not quite
as important here as it is with the test patterns themselves.

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 2015-03-07 14:23:16 -03:00 committed by Mauro Carvalho Chehab
parent 1f088dc162
commit 3e14e7a82c
1 changed files with 20 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/media/platform/vivid/vivid-tpg.c
View File

@ -1183,24 +1183,37 @@ void tpg_gen_text(struct tpg_data *tpg, u8 *basep[TPG_MAX_PLANES][2],
div = 2;
for (p = 0; p < tpg->planes; p++) {
/* Print stream time */
unsigned vdiv = tpg->vdownsampling[p];
unsigned hdiv = tpg->hdownsampling[p];
/* Print text */
#define PRINTSTR(PIXTYPE) do { \
PIXTYPE fg; \
PIXTYPE bg; \
memcpy(&fg, tpg->textfg[p], sizeof(PIXTYPE)); \
memcpy(&bg, tpg->textbg[p], sizeof(PIXTYPE)); \
\
for (line = first; line < 16; line += step) { \
for (line = first; line < 16; line += vdiv * step) { \
int l = tpg->vflip ? 15 - line : line; \
PIXTYPE *pos = (PIXTYPE *)(basep[p][line & 1] + \
((y * step + l) / div) * tpg->bytesperline[p] + \
x * sizeof(PIXTYPE)); \
PIXTYPE *pos = (PIXTYPE *)(basep[p][(line / vdiv) & 1] + \
((y * step + l) / (vdiv * div)) * tpg->bytesperline[p] + \
(x / hdiv) * sizeof(PIXTYPE)); \
unsigned s; \
\
for (s = 0; s < len; s++) { \
u8 chr = font8x16[text[s] * 16 + line]; \
\
if (tpg->hflip) { \
if (hdiv == 2 && tpg->hflip) { \
pos[3] = (chr & (0x01 << 6) ? fg : bg); \
pos[2] = (chr & (0x01 << 4) ? fg : bg); \
pos[1] = (chr & (0x01 << 2) ? fg : bg); \
pos[0] = (chr & (0x01 << 0) ? fg : bg); \
} else if (hdiv == 2) { \
pos[0] = (chr & (0x01 << 7) ? fg : bg); \
pos[1] = (chr & (0x01 << 5) ? fg : bg); \
pos[2] = (chr & (0x01 << 3) ? fg : bg); \
pos[3] = (chr & (0x01 << 1) ? fg : bg); \
} else if (tpg->hflip) { \
pos[7] = (chr & (0x01 << 7) ? fg : bg); \
pos[6] = (chr & (0x01 << 6) ? fg : bg); \
pos[5] = (chr & (0x01 << 5) ? fg : bg); \
@ -1220,7 +1233,7 @@ void tpg_gen_text(struct tpg_data *tpg, u8 *basep[TPG_MAX_PLANES][2],
pos[7] = (chr & (0x01 << 0) ? fg : bg); \
} \
\
pos += tpg->hflip ? -8 : 8; \
pos += (tpg->hflip ? -8 : 8) / hdiv; \
} \
} \
} while (0)