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-rw-r--r--src/gallium/auxiliary/util/p_tile.c124
-rw-r--r--src/gallium/auxiliary/util/p_tile.h14
2 files changed, 138 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/p_tile.c b/src/gallium/auxiliary/util/p_tile.c
index 3f795a38989..287d7839812 100644
--- a/src/gallium/auxiliary/util/p_tile.c
+++ b/src/gallium/auxiliary/util/p_tile.c
@@ -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);
+}
+
+
diff --git a/src/gallium/auxiliary/util/p_tile.h b/src/gallium/auxiliary/util/p_tile.h
index cd8124bf11f..318b6d11a68 100644
--- a/src/gallium/auxiliary/util/p_tile.h
+++ b/src/gallium/auxiliary/util/p_tile.h
@@ -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