add PIPE_FORMAT_Z24_S8 support to softpipe patsh

4 files changed, 93 insertions, 0 deletions

diff --git a/src/mesa/pipe/softpipe/sp_quad_depth_test.c b/src/mesa/pipe/softpipe/sp_quad_depth_test.c
index f7e93af784..3318189621 100644
--- a/src/mesa/pipe/softpipe/sp_quad_depth_test.c
+++ b/src/mesa/pipe/softpipe/sp_quad_depth_test.c
@@ -119,6 +119,21 @@ sp_depth_test_quad(struct quad_stage *qs, struct quad_header *quad)
          }
       }
       break;
+   case PIPE_FORMAT_Z24_S8:
+      {
+         float scale = (float) ((1 << 24) - 1);
+
+         for (j = 0; j < QUAD_SIZE; j++) {
+            qzzzz[j] = (unsigned) (quad->outputs.depth[j] * scale);
+         }
+
+         for (j = 0; j < QUAD_SIZE; j++) {
+            int x = quad->x0 % TILE_SIZE + (j & 1);
+            int y = quad->y0 % TILE_SIZE + (j >> 1);
+            bzzzz[j] = tile->data.depth32[y][x] >> 8;
+         }
+      }
+      break;
    default:
       assert(0);
    }
@@ -210,6 +225,15 @@ sp_depth_test_quad(struct quad_stage *qs, struct quad_header *quad)
             tile->data.depth32[y][x] = s8z24;
          }
          break;
+      case PIPE_FORMAT_Z24_S8:
+         for (j = 0; j < QUAD_SIZE; j++) {
+            int x = quad->x0 % TILE_SIZE + (j & 1);
+            int y = quad->y0 % TILE_SIZE + (j >> 1);
+            uint z24s8 = tile->data.depth32[y][x];
+            z24s8 = (z24s8 & 0xff) | (bzzzz[j] << 24);
+            tile->data.depth32[y][x] = z24s8;
+         }
+         break;
       default:
          assert(0);
       }
diff --git a/src/mesa/pipe/softpipe/sp_quad_stencil.c b/src/mesa/pipe/softpipe/sp_quad_stencil.c
index 831ad8bad0..0149b20f48 100644
--- a/src/mesa/pipe/softpipe/sp_quad_stencil.c
+++ b/src/mesa/pipe/softpipe/sp_quad_stencil.c
@@ -241,6 +241,13 @@ stencil_test_quad(struct quad_stage *qs, struct quad_header *quad)
          stencilVals[j] = tile->data.depth32[y][x] >> 24;
       }
       break;
+   case PIPE_FORMAT_Z24_S8:
+      for (j = 0; j < QUAD_SIZE; j++) {
+         int x = quad->x0 % TILE_SIZE + (j & 1);
+         int y = quad->y0 % TILE_SIZE + (j >> 1);
+         stencilVals[j] = tile->data.depth32[y][x] & 0xff;
+      }
+      break;
    case PIPE_FORMAT_U_S8:
       for (j = 0; j < QUAD_SIZE; j++) {
          int x = quad->x0 % TILE_SIZE + (j & 1);
@@ -300,6 +307,15 @@ stencil_test_quad(struct quad_stage *qs, struct quad_header *quad)
          tile->data.depth32[y][x] = s8z24;
       }
       break;
+   case PIPE_FORMAT_Z24_S8:
+      for (j = 0; j < QUAD_SIZE; j++) {
+         int x = quad->x0 % TILE_SIZE + (j & 1);
+         int y = quad->y0 % TILE_SIZE + (j >> 1);
+         uint z24s8 = tile->data.depth32[y][x];
+         z24s8 = (z24s8 & 0xffffff00) | stencilVals[j];
+         tile->data.depth32[y][x] = z24s8;
+      }
+      break;
    case PIPE_FORMAT_U_S8:
       for (j = 0; j < QUAD_SIZE; j++) {
          int x = quad->x0 % TILE_SIZE + (j & 1);
diff --git a/src/mesa/pipe/softpipe/sp_surface.c b/src/mesa/pipe/softpipe/sp_surface.c
index ccaf38de3e..b7c9d4f004 100644
--- a/src/mesa/pipe/softpipe/sp_surface.c
+++ b/src/mesa/pipe/softpipe/sp_surface.c
@@ -461,6 +461,40 @@ s8z24_get_tile(struct pipe_surface *ps,
 }
 
 
+/*** PIPE_FORMAT_Z24_S8 ***/
+
+/**
+ * Return Z component as four float in [0,1].  Stencil part ignored.
+ */
+static void
+z24s8_get_tile(struct pipe_surface *ps,
+               unsigned x, unsigned y, unsigned w, unsigned h, float *p)
+{
+   const uint *src
+      = ((const uint *) (ps->region->map + ps->offset))
+      + y * ps->region->pitch + x;
+   const double scale = 1.0 / ((1 << 24) - 1);
+   unsigned i, j;
+   unsigned w0 = w;
+
+   assert(ps->format == PIPE_FORMAT_Z24_S8);
+
+   CLIP_TILE;
+
+   for (i = 0; i < h; i++) {
+      float *pRow = p;
+      for (j = 0; j < w; j++) {
+         pRow[j * 4 + 0] =
+         pRow[j * 4 + 1] =
+         pRow[j * 4 + 2] =
+         pRow[j * 4 + 3] = (float) (scale * (src[j] >> 8));
+      }
+      src += ps->region->pitch;
+      p += 4 * w0;
+   }
+}
+
+
 /**
  * Called via pipe->get_tex_surface()
  * XXX is this in the right place?
@@ -601,6 +635,9 @@ softpipe_get_tile_rgba(struct pipe_context *pipe,
    case PIPE_FORMAT_S8_Z24:
       s8z24_get_tile(ps, x, y, w, h, p);
       break;
+   case PIPE_FORMAT_Z24_S8:
+      z24s8_get_tile(ps, x, y, w, h, p);
+      break;
    default:
       assert(0);
    }
@@ -645,6 +682,9 @@ softpipe_put_tile_rgba(struct pipe_context *pipe,
    case PIPE_FORMAT_S8_Z24:
       /*s8z24_put_tile(ps, x, y, w, h, p);*/
       break;
+   case PIPE_FORMAT_Z24_S8:
+      /*z24s8_put_tile(ps, x, y, w, h, p);*/
+      break;
    default:
       assert(0);
    }
diff --git a/src/mesa/pipe/softpipe/sp_tile_cache.c b/src/mesa/pipe/softpipe/sp_tile_cache.c
index 19c06323e1..ea0c8b8f91 100644
--- a/src/mesa/pipe/softpipe/sp_tile_cache.c
+++ b/src/mesa/pipe/softpipe/sp_tile_cache.c
@@ -166,6 +166,7 @@ sp_flush_tile_cache(struct softpipe_context *softpipe,
       return;
 
    is_depth_stencil = (ps->format == PIPE_FORMAT_S8_Z24 ||
+                       ps->format == PIPE_FORMAT_Z24_S8 ||
                        ps->format == PIPE_FORMAT_U_Z16 ||
                        ps->format == PIPE_FORMAT_U_Z32 ||
                        ps->format == PIPE_FORMAT_U_S8);
@@ -203,6 +204,7 @@ sp_get_cached_tile(struct softpipe_context *softpipe,
    struct pipe_surface *ps = tc->surface;
    boolean is_depth_stencil
       = (ps->format == PIPE_FORMAT_S8_Z24 ||
+         ps->format == PIPE_FORMAT_Z24_S8 ||
          ps->format == PIPE_FORMAT_U_Z16 ||
          ps->format == PIPE_FORMAT_U_Z32 ||
          ps->format == PIPE_FORMAT_U_S8);
@@ -268,6 +270,17 @@ sp_get_cached_tile(struct softpipe_context *softpipe,
                }
             }
             break;
+         case PIPE_FORMAT_Z24_S8:
+            {
+               uint clear_val = ((uint) (tc->clear_value[0] * 0xffffff)) << 8;
+               clear_val |= ((uint) tc->clear_value[1]) & 0xff;
+               for (i = 0; i < TILE_SIZE; i++) {
+                  for (j = 0; j < TILE_SIZE; j++) {
+                     tile->data.depth32[i][j] = clear_val;
+                  }
+               }
+            }
+            break;
          case PIPE_FORMAT_U_S8:
             {
                ubyte clear_val = (uint) tc->clear_value[0];