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util/tile: Support R8G8B8A8_UNORM format.

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This commit is contained in:
Michal Krol
2009-12-07 18:12:05 +01:00
parent c90baf444c
commit ac66598ed8
1 changed files with 53 additions and 3 deletions
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src/gallium/auxiliary/util/u_tile.c
+53 -3
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@@ -247,6 +247,53 @@ b8g8r8a8_put_tile_rgba(unsigned *dst,
}
/*** PIPE_FORMAT_R8G8B8A8_UNORM ***/
static void
r8g8b8a8_get_tile_rgba(const unsigned *src,
unsigned w, unsigned h,
float *p,
unsigned dst_stride)
{
unsigned i, j;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++, pRow += 4) {
const unsigned pixel = *src++;
pRow[0] = ubyte_to_float((pixel >> 24) & 0xff);
pRow[1] = ubyte_to_float((pixel >> 16) & 0xff);
pRow[2] = ubyte_to_float((pixel >> 8) & 0xff);
pRow[3] = ubyte_to_float((pixel >> 0) & 0xff);
}
p += dst_stride;
}
}
static void
r8g8b8a8_put_tile_rgba(unsigned *dst,
unsigned w, unsigned h,
const float *p,
unsigned src_stride)
{
unsigned i, j;
for (i = 0; i < h; i++) {
const float *pRow = p;
for (j = 0; j < w; j++, pRow += 4) {
unsigned r, g, b, a;
r = float_to_ubyte(pRow[0]);
g = float_to_ubyte(pRow[1]);
b = float_to_ubyte(pRow[2]);
a = float_to_ubyte(pRow[3]);
*dst++ = (r << 24) | (g << 16) | (b << 8) | a;
}
p += src_stride;
}
}
/*** PIPE_FORMAT_A1R5G5B5_UNORM ***/
static void
@@ -1144,6 +1191,9 @@ pipe_tile_raw_to_rgba(enum pipe_format format,
case PIPE_FORMAT_B8G8R8A8_UNORM:
b8g8r8a8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
break;
case PIPE_FORMAT_R8G8B8A8_UNORM:
r8g8b8a8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
break;
case PIPE_FORMAT_A1R5G5B5_UNORM:
a1r5g5b5_get_tile_rgba((ushort *) src, w, h, dst, dst_stride);
break;
@@ -1268,6 +1318,9 @@ pipe_put_tile_rgba(struct pipe_transfer *pt,
case PIPE_FORMAT_B8G8R8A8_UNORM:
b8g8r8a8_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);
break;
case PIPE_FORMAT_R8G8B8A8_UNORM:
r8g8b8a8_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);
break;
case PIPE_FORMAT_A1R5G5B5_UNORM:
a1r5g5b5_put_tile_rgba((ushort *) packed, w, h, p, src_stride);
break;
@@ -1277,9 +1330,6 @@ pipe_put_tile_rgba(struct pipe_transfer *pt,
case PIPE_FORMAT_R8G8B8_UNORM:
r8g8b8_put_tile_rgba((ubyte *) packed, w, h, p, src_stride);
break;
case PIPE_FORMAT_R8G8B8A8_UNORM:
assert(0);
break;
case PIPE_FORMAT_A4R4G4B4_UNORM:
a4r4g4b4_put_tile_rgba((ushort *) packed, w, h, p, src_stride);
break;