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added tile funcs for B8G8R8A8 format

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This commit is contained in:
Brian 2007-12-05 14:48:09 -07:00
parent fa3fc81f2c
commit 04516cfcaf
1 changed files with 70 additions and 0 deletions
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70
src/mesa/pipe/softpipe/sp_surface.c
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@ -133,6 +133,70 @@ a8r8g8b8_put_tile(struct pipe_surface *ps,
}
/*** PIPE_FORMAT_U_B8_G8_R8_A8 ***/
static void
b8g8r8a8_get_tile(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h, float *p)
{
const unsigned *src
= ((const unsigned *) (ps->region->map + ps->offset))
+ y * ps->pitch + x;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_U_B8_G8_R8_A8);
CLIP_TILE;
for (i = 0; i < h; i++) {
float *pRow = p;
for (j = 0; j < w; j++) {
const unsigned pixel = src[j];
pRow[0] = UBYTE_TO_FLOAT((pixel >> 8) & 0xff);
pRow[1] = UBYTE_TO_FLOAT((pixel >> 16) & 0xff);
pRow[2] = UBYTE_TO_FLOAT((pixel >> 24) & 0xff);
pRow[3] = UBYTE_TO_FLOAT((pixel >> 0) & 0xff);
pRow += 4;
}
src += ps->pitch;
p += w0 * 4;
}
}
static void
b8g8r8a8_put_tile(struct pipe_surface *ps,
unsigned x, unsigned y, unsigned w, unsigned h,
const float *p)
{
unsigned *dst
= ((unsigned *) (ps->region->map + ps->offset))
+ y * ps->pitch + x;
unsigned i, j;
unsigned w0 = w;
assert(ps->format == PIPE_FORMAT_U_B8_G8_R8_A8);
CLIP_TILE;
for (i = 0; i < h; i++) {
const float *pRow = p;
for (j = 0; j < w; j++) {
unsigned r, g, b, a;
UNCLAMPED_FLOAT_TO_UBYTE(r, pRow[0]);
UNCLAMPED_FLOAT_TO_UBYTE(g, pRow[1]);
UNCLAMPED_FLOAT_TO_UBYTE(b, pRow[2]);
UNCLAMPED_FLOAT_TO_UBYTE(a, pRow[3]);
dst[j] = (b << 24) | (g << 16) | (r << 8) | a;
pRow += 4;
}
dst += ps->pitch;
p += w0 * 4;
}
}
/*** PIPE_FORMAT_U_A1_R5_G5_B5 ***/
static void
@ -610,6 +674,9 @@ softpipe_get_tile_rgba(struct pipe_context *pipe,
case PIPE_FORMAT_U_A8_R8_G8_B8:
a8r8g8b8_get_tile(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_U_B8_G8_R8_A8:
b8g8r8a8_get_tile(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_U_A1_R5_G5_B5:
a1r5g5b5_get_tile(ps, x, y, w, h, p);
break;
@ -657,6 +724,9 @@ softpipe_put_tile_rgba(struct pipe_context *pipe,
case PIPE_FORMAT_U_A8_R8_G8_B8:
a8r8g8b8_put_tile(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_U_B8_G8_R8_A8:
b8g8r8a8_put_tile(ps, x, y, w, h, p);
break;
case PIPE_FORMAT_U_A1_R5_G5_B5:
/*a1r5g5b5_put_tile(ps, x, y, w, h, p);*/
break;