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ansi: support 256-colors

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Peter Ross 2012-09-01 15:18:19 +10:00 committed by Michael Niedermayer
parent 95b9e56beb
commit 3ac718d60a
2 changed files with 29 additions and 6 deletions
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29
libavcodec/ansi.c
View File

@ -89,6 +89,21 @@ static av_cold int decode_init(AVCodecContext *avctx)
return 0;
}
static void set_palette(uint32_t *pal)
{
int r, g, b;
memcpy(pal, ff_cga_palette, 16 * 4);
pal += 16;
#define COLOR(x) ((x) * 40 + 55)
for (r = 0; r < 6; r++)
for (g = 0; g < 6; g++)
for (b = 0; b < 6; b++)
*pal++ = 0xFF000000 | (COLOR(r) << 16) | (COLOR(g) << 8) | COLOR(b);
#define GRAY(x) ((x) * 10 + 8)
for (g = 0; g < 24; g++)
*pal++ = 0xFF000000 | (GRAY(g) << 16) | (GRAY(g) << 8) | GRAY(g);
}
static void hscroll(AVCodecContext *avctx)
{
AnsiContext *s = avctx->priv_data;
@ -232,7 +247,7 @@ static int execute_code(AVCodecContext * avctx, int c)
}
s->frame.pict_type = AV_PICTURE_TYPE_I;
s->frame.palette_has_changed = 1;
memcpy(s->frame.data[1], ff_cga_palette, 16 * 4);
set_palette((uint32_t *)s->frame.data[1]);
erase_screen(avctx);
} else if (c == 'l') {
erase_screen(avctx);
@ -280,12 +295,20 @@ static int execute_code(AVCodecContext * avctx, int c)
s->bg = DEFAULT_BG_COLOR;
} else if (m == 1 || m == 2 || m == 4 || m == 5 || m == 7 || m == 8) {
s->attributes |= 1 << (m - 1);
} else if (m >= 30 && m <= 38) {
} else if (m >= 30 && m <= 37) {
s->fg = ansi_to_cga[m - 30];
} else if (m == 38 && i + 2 < s->nb_args && s->args[i + 1] == 5 && s->args[i + 2] < 256) {
int index = s->args[i + 2];
s->fg = index < 16 ? ansi_to_cga[index] : index;
i += 2;
} else if (m == 39) {
s->fg = ansi_to_cga[DEFAULT_FG_COLOR];
} else if (m >= 40 && m <= 47) {
s->bg = ansi_to_cga[m - 40];
} else if (m == 48 && i + 2 < s->nb_args && s->args[i + 1] == 5 && s->args[i + 2] < 256) {
int index = s->args[i + 2];
s->bg = index < 16 ? ansi_to_cga[index] : index;
i += 2;
} else if (m == 49) {
s->fg = ansi_to_cga[DEFAULT_BG_COLOR];
} else {
@ -329,7 +352,7 @@ static int decode_frame(AVCodecContext *avctx,
}
s->frame.pict_type = AV_PICTURE_TYPE_I;
s->frame.palette_has_changed = 1;
memcpy(s->frame.data[1], ff_cga_palette, 16 * 4);
set_palette((uint32_t *)s->frame.data[1]);
while(buf < buf_end) {
switch(s->state) {

6
tests/ref/fate/ansi
View File

@ -1,7 +1,7 @@
#tb 0: 1/25
0, 0, 0, 1, 768000, 0x3032d0de
0, 1, 1, 1, 768000, 0xc3be5922
0, 2, 2, 1, 768000, 0xf530c476
0, 0, 0, 1, 768000, 0xc4865718
0, 1, 1, 1, 768000, 0x2c7de258
0, 2, 2, 1, 768000, 0x0d6b8dc6
0, 3, 3, 1, 768000, 0x11c1fb8e
0, 4, 4, 1, 768000, 0x72d12da9
0, 5, 5, 1, 768000, 0x39c7a70d