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util: Remove u_tile.c YCbCr's.

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Superseded by u_format_yuv.c. Also PIPE_FORMAT_YUYV's interpretation was
inconsistent: it was being interpreted as VYUY.
This commit is contained in:
José Fonseca
2010-04-07 19:58:18 +01:00
parent 7f9444050f
commit ecdd6bc3e2
2 changed files with 0 additions and 96 deletions
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src/gallium/auxiliary/util/u_format.csv
-2
View File
@@ -111,8 +111,6 @@ PIPE_FORMAT_Z32_FLOAT_S8X24_USCALED , plain, 1, 1, f32, u8 , x24 , , xy__,
# http://www.fourcc.org/yuv.php#UYVY
PIPE_FORMAT_UYVY , subsampled, 2, 1, x32 , , , , xyz1, yuv
# http://www.fourcc.org/yuv.php#YUYV (a.k.a http://www.fourcc.org/yuv.php#YUY2)
# XXX: u_tile.c's ycbcr_get_tile_rgba actually interprets it as VYUY but the
# intent should be to match D3DFMT_YUY2
PIPE_FORMAT_YUYV , subsampled, 2, 1, x32 , , , , xyz1, yuv
# same subsampling but with rgb channels
PIPE_FORMAT_R8G8_B8G8_UNORM , subsampled, 2, 1, x32 , , , , xyz1, rgb
Can't render this file because it contains an unexpected character in line 8 and column 3.
src/gallium/auxiliary/util/u_tile.c
-94
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@@ -244,94 +244,6 @@ z32f_get_tile_rgba(const float *src,
}
/*** PIPE_FORMAT_UYVY / PIPE_FORMAT_YUYV ***/
/**
* Convert YCbCr (or YCrCb) to RGBA.
*/
static void
ycbcr_get_tile_rgba(const ushort *src,
unsigned w, unsigned h,
float *p,
unsigned dst_stride,
boolean rev)
{
const float scale = 1.0f / 255.0f;
unsigned i, j;
for (i = 0; i < h; i++) {
float *pRow = p;
/* do two texels at a time */
for (j = 0; j < (w & ~1); j += 2, src += 2) {
const ushort t0 = src[0];
const ushort t1 = src[1];
const ubyte y0 = (t0 >> 8) & 0xff; /* luminance */
const ubyte y1 = (t1 >> 8) & 0xff; /* luminance */
ubyte cb, cr;
float r, g, b;
if (rev) {
cb = t1 & 0xff; /* chroma U */
cr = t0 & 0xff; /* chroma V */
}
else {
cb = t0 & 0xff; /* chroma U */
cr = t1 & 0xff; /* chroma V */
}
/* even pixel: y0,cr,cb */
r = 1.164f * (y0-16) + 1.596f * (cr-128);
g = 1.164f * (y0-16) - 0.813f * (cr-128) - 0.391f * (cb-128);
b = 1.164f * (y0-16) + 2.018f * (cb-128);
pRow[0] = r * scale;
pRow[1] = g * scale;
pRow[2] = b * scale;
pRow[3] = 1.0f;
pRow += 4;
/* odd pixel: use y1,cr,cb */
r = 1.164f * (y1-16) + 1.596f * (cr-128);
g = 1.164f * (y1-16) - 0.813f * (cr-128) - 0.391f * (cb-128);
b = 1.164f * (y1-16) + 2.018f * (cb-128);
pRow[0] = r * scale;
pRow[1] = g * scale;
pRow[2] = b * scale;
pRow[3] = 1.0f;
pRow += 4;
}
/* do the last texel */
if (w & 1) {
const ushort t0 = src[0];
const ushort t1 = src[1];
const ubyte y0 = (t0 >> 8) & 0xff; /* luminance */
ubyte cb, cr;
float r, g, b;
if (rev) {
cb = t1 & 0xff; /* chroma U */
cr = t0 & 0xff; /* chroma V */
}
else {
cb = t0 & 0xff; /* chroma U */
cr = t1 & 0xff; /* chroma V */
}
/* even pixel: y0,cr,cb */
r = 1.164f * (y0-16) + 1.596f * (cr-128);
g = 1.164f * (y0-16) - 0.813f * (cr-128) - 0.391f * (cb-128);
b = 1.164f * (y0-16) + 2.018f * (cb-128);
pRow[0] = r * scale;
pRow[1] = g * scale;
pRow[2] = b * scale;
pRow[3] = 1.0f;
pRow += 4;
}
p += dst_stride;
}
}
void
pipe_tile_raw_to_rgba(enum pipe_format format,
void *src,
@@ -356,12 +268,6 @@ pipe_tile_raw_to_rgba(enum pipe_format format,
case PIPE_FORMAT_Z32_FLOAT:
z32f_get_tile_rgba((float *) src, w, h, dst, dst_stride);
break;
case PIPE_FORMAT_UYVY:
ycbcr_get_tile_rgba((ushort *) src, w, h, dst, dst_stride, FALSE);
break;
case PIPE_FORMAT_YUYV:
ycbcr_get_tile_rgba((ushort *) src, w, h, dst, dst_stride, TRUE);
break;
default:
util_format_read_4f(format,
dst, dst_stride * sizeof(float),