fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-05 13:58:04 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

gallium: added pipe_get/put_tile_z() functions

Browse source
This commit is contained in:
Brian Paul 2008-02-29 11:09:02 -07:00
parent 78220aea86
commit a41b77f4fe
2 changed files with 138 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

124
src/gallium/auxiliary/util/p_tile.c
View file

@ -697,3 +697,127 @@ pipe_put_tile_rgba(struct pipe_context *pipe,
FREE(packed);
}
/**
* Get a block of Z values, converted to 32-bit range.
*/
void
pipe_get_tile_z(struct pipe_context *pipe,
struct pipe_surface *ps,
uint x, uint y, uint w, uint h,
uint *z)
{
const uint dstStride = w;
uint *pDest = z;
uint i, j;
if (pipe_clip_tile(x, y, &w, &h, ps))
return;
switch (ps->format) {
case PIPE_FORMAT_Z32_UNORM:
{
const uint *pSrc
= (const uint *) pipe_surface_map(ps) + (y * ps->pitch + x);
for (i = 0; i < h; i++) {
memcpy(pDest, pSrc, 4 * w);
pDest += dstStride;
pSrc += ps->pitch;
}
}
break;
case PIPE_FORMAT_S8Z24_UNORM:
{
const uint *pSrc
= (const uint *) pipe_surface_map(ps) + (y * ps->pitch + x);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 24-bit Z to 32-bit Z */
pDest[j] = (pSrc[j] << 8) | (pSrc[j] & 0xff);
}
pDest += dstStride;
pSrc += ps->pitch;
}
}
break;
case PIPE_FORMAT_Z16_UNORM:
{
const ushort *pSrc
= (const ushort *) pipe_surface_map(ps) + (y * ps->pitch + x);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 16-bit Z to 32-bit Z */
pDest[j] = (pSrc[j] << 16) | pSrc[j];
}
pDest += dstStride;
pSrc += ps->pitch;
}
}
break;
default:
assert(0);
}
pipe_surface_unmap(ps);
}
void
pipe_put_tile_z(struct pipe_context *pipe,
struct pipe_surface *ps,
uint x, uint y, uint w, uint h,
const uint *zSrc)
{
const uint srcStride = w;
const uint *pSrc = zSrc;
uint i, j;
if (pipe_clip_tile(x, y, &w, &h, ps))
return;
switch (ps->format) {
case PIPE_FORMAT_Z32_UNORM:
{
uint *pDest = (uint *) pipe_surface_map(ps) + (y * ps->pitch + x);
for (i = 0; i < h; i++) {
memcpy(pDest, pSrc, 4 * w);
pDest += ps->pitch;
pSrc += srcStride;
}
}
break;
case PIPE_FORMAT_S8Z24_UNORM:
{
uint *pDest = (uint *) pipe_surface_map(ps) + (y * ps->pitch + x);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 32-bit Z to 24-bit Z (0 stencil) */
pDest[j] = pSrc[j] >> 8;
}
pDest += ps->pitch;
pSrc += srcStride;
}
}
break;
case PIPE_FORMAT_Z16_UNORM:
{
ushort *pDest = (ushort *) pipe_surface_map(ps) + (y * ps->pitch + x);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 32-bit Z to 16-bit Z */
pDest[j] = pSrc[j] >> 16;
}
pDest += ps->pitch;
pSrc += srcStride;
}
}
break;
default:
assert(0);
}
pipe_surface_unmap(ps);
}

14
src/gallium/auxiliary/util/p_tile.h
View file

@ -78,4 +78,18 @@ pipe_put_tile_rgba(struct pipe_context *pipe,
uint x, uint y, uint w, uint h,
const float *p);
extern void
pipe_get_tile_z(struct pipe_context *pipe,
struct pipe_surface *ps,
uint x, uint y, uint w, uint h,
uint *z);
extern void
pipe_put_tile_z(struct pipe_context *pipe,
struct pipe_surface *ps,
uint x, uint y, uint w, uint h,
const uint *z);
#endif