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-rw-r--r--src/gallium/drivers/softpipe/sp_quad_depth_test.c107
1 files changed, 100 insertions, 7 deletions
diff --git a/src/gallium/drivers/softpipe/sp_quad_depth_test.c b/src/gallium/drivers/softpipe/sp_quad_depth_test.c
index 506867f4d07..9cffea2c9e6 100644
--- a/src/gallium/drivers/softpipe/sp_quad_depth_test.c
+++ b/src/gallium/drivers/softpipe/sp_quad_depth_test.c
@@ -781,6 +781,81 @@ depth_interp_z16_less_write(struct quad_stage *qs,
static void
+depth_interp_z16_lequal_write(struct quad_stage *qs,
+ struct quad_header *quads[],
+ unsigned nr)
+{
+ unsigned i, pass = 0;
+ const unsigned ix = quads[0]->input.x0;
+ const unsigned iy = quads[0]->input.y0;
+ const float fx = (float) ix;
+ const float fy = (float) iy;
+ const float dzdx = quads[0]->posCoef->dadx[2];
+ const float dzdy = quads[0]->posCoef->dady[2];
+ const float z0 = quads[0]->posCoef->a0[2] + dzdx * fx + dzdy * fy;
+ struct softpipe_cached_tile *tile;
+ ushort (*depth16)[TILE_SIZE];
+ ushort idepth[4], depth_step;
+ const float scale = 65535.0;
+
+ idepth[0] = (ushort)((z0) * scale);
+ idepth[1] = (ushort)((z0 + dzdx) * scale);
+ idepth[2] = (ushort)((z0 + dzdy) * scale);
+ idepth[3] = (ushort)((z0 + dzdx + dzdy) * scale);
+
+ depth_step = (ushort)(dzdx * 2 * scale);
+
+ tile = sp_get_cached_tile(qs->softpipe->zsbuf_cache, ix, iy);
+
+ depth16 = (ushort (*)[TILE_SIZE])
+ &tile->data.depth16[iy % TILE_SIZE][ix % TILE_SIZE];
+
+ for (i = 0; i < nr; i++) {
+ unsigned outmask = quads[i]->inout.mask;
+ unsigned mask = 0;
+
+ if ((outmask & 1) && idepth[0] <= depth16[0][0]) {
+ depth16[0][0] = idepth[0];
+ mask |= (1 << 0);
+ }
+
+ if ((outmask & 2) && idepth[1] <= depth16[0][1]) {
+ depth16[0][1] = idepth[1];
+ mask |= (1 << 1);
+ }
+
+ if ((outmask & 4) && idepth[2] <= depth16[1][0]) {
+ depth16[1][0] = idepth[2];
+ mask |= (1 << 2);
+ }
+
+ if ((outmask & 8) && idepth[3] <= depth16[1][1]) {
+ depth16[1][1] = idepth[3];
+ mask |= (1 << 3);
+ }
+
+ idepth[0] += depth_step;
+ idepth[1] += depth_step;
+ idepth[2] += depth_step;
+ idepth[3] += depth_step;
+
+ depth16 = (ushort (*)[TILE_SIZE]) &depth16[0][2];
+
+ quads[i]->inout.mask = mask;
+ if (quads[i]->inout.mask)
+ quads[pass++] = quads[i];
+ }
+
+ if (pass)
+ qs->next->run(qs->next, quads, pass);
+
+}
+
+
+
+
+
+static void
depth_noop(struct quad_stage *qs,
struct quad_header *quads[],
unsigned nr)
@@ -809,8 +884,6 @@ choose_depth_test(struct quad_stage *qs,
boolean depthwrite = qs->softpipe->depth_stencil->depth.writemask;
- qs->run = depth_test_quads_fallback;
-
if (!alpha &&
!depth &&
!stencil) {
@@ -819,18 +892,38 @@ choose_depth_test(struct quad_stage *qs,
else if (!alpha &&
interp_depth &&
depth &&
- depthfunc == PIPE_FUNC_LESS &&
depthwrite &&
!stencil)
{
- switch (qs->softpipe->framebuffer.zsbuf->format) {
- case PIPE_FORMAT_Z16_UNORM:
- qs->run = depth_interp_z16_less_write;
+ switch (depthfunc) {
+ case PIPE_FUNC_LESS:
+ switch (qs->softpipe->framebuffer.zsbuf->format) {
+ case PIPE_FORMAT_Z16_UNORM:
+ qs->run = depth_interp_z16_less_write;
+ break;
+ default:
+ qs->run = depth_test_quads_fallback;
+ break;
+ }
break;
- default:
+ case PIPE_FUNC_LEQUAL:
+ switch (qs->softpipe->framebuffer.zsbuf->format) {
+ case PIPE_FORMAT_Z16_UNORM:
+ qs->run = depth_interp_z16_lequal_write;
+ break;
+ default:
+ qs->run = depth_test_quads_fallback;
+ break;
+ }
break;
+ default:
+ qs->run = depth_test_quads_fallback;
}
}
+ else {
+ qs->run = depth_test_quads_fallback;
+ }
+
qs->run( qs, quads, nr );
}