summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--src/gallium/drivers/llvmpipe/lp_debug.h3
-rw-r--r--src/gallium/drivers/llvmpipe/lp_rast.c60
-rw-r--r--src/gallium/drivers/llvmpipe/lp_screen.c2
3 files changed, 65 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_debug.h b/src/gallium/drivers/llvmpipe/lp_debug.h
index 74b2757494..7128e8eb4b 100644
--- a/src/gallium/drivers/llvmpipe/lp_debug.h
+++ b/src/gallium/drivers/llvmpipe/lp_debug.h
@@ -45,6 +45,9 @@ st_print_current(void);
#define DEBUG_QUERY 0x40
#define DEBUG_SCREEN 0x80
#define DEBUG_JIT 0x100
+#define DEBUG_SHOW_TILES 0x200
+#define DEBUG_SHOW_SUBTILES 0x400
+
#ifdef DEBUG
extern int LP_DEBUG;
diff --git a/src/gallium/drivers/llvmpipe/lp_rast.c b/src/gallium/drivers/llvmpipe/lp_rast.c
index 2e2ebee45d..440bb32235 100644
--- a/src/gallium/drivers/llvmpipe/lp_rast.c
+++ b/src/gallium/drivers/llvmpipe/lp_rast.c
@@ -461,6 +461,61 @@ void lp_rast_shade_quads( struct lp_rasterizer *rast,
}
+#ifdef DEBUG
+/**
+ * Set top row and left column of the tile's pixels to white. For debugging.
+ */
+static void
+outline_tile(uint8_t *tile)
+{
+ const uint8_t val = 0xff;
+ unsigned i;
+
+ for (i = 0; i < TILE_SIZE; i++) {
+ TILE_PIXEL(tile, i, 0, 0) = val;
+ TILE_PIXEL(tile, i, 0, 1) = val;
+ TILE_PIXEL(tile, i, 0, 2) = val;
+ TILE_PIXEL(tile, i, 0, 3) = val;
+
+ TILE_PIXEL(tile, 0, i, 0) = val;
+ TILE_PIXEL(tile, 0, i, 1) = val;
+ TILE_PIXEL(tile, 0, i, 2) = val;
+ TILE_PIXEL(tile, 0, i, 3) = val;
+ }
+}
+#endif /* DEBUG */
+
+
+#ifdef DEBUG
+/**
+ * Draw grid of gray lines at 16-pixel intervals across the tile to
+ * show the sub-tile boundaries. For debugging.
+ */
+static void
+outline_subtiles(uint8_t *tile)
+{
+ const uint8_t val = 0x80;
+ const unsigned step = 16;
+ unsigned i, j;
+
+ for (i = 0; i < TILE_SIZE; i += 16) {
+ for (j = 0; j < TILE_SIZE; j++) {
+ TILE_PIXEL(tile, i, j, 0) = val;
+ TILE_PIXEL(tile, i, j, 1) = val;
+ TILE_PIXEL(tile, i, j, 2) = val;
+ TILE_PIXEL(tile, i, j, 3) = val;
+
+ TILE_PIXEL(tile, j, i, 0) = val;
+ TILE_PIXEL(tile, j, i, 1) = val;
+ TILE_PIXEL(tile, j, i, 2) = val;
+ TILE_PIXEL(tile, j, i, 3) = val;
+ }
+ }
+
+ outline_tile(tile);
+}
+#endif /* DEBUG */
+
/**
@@ -500,6 +555,11 @@ static void lp_rast_store_color( struct lp_rasterizer *rast,
LP_DBG(DEBUG_RAST, "%s [%u] %d,%d %dx%d\n", __FUNCTION__,
thread_index, x, y, w, h);
+ if (LP_DEBUG & DEBUG_SHOW_SUBTILES)
+ outline_subtiles(rast->tasks[thread_index].tile.color[i]);
+ else if (LP_DEBUG & DEBUG_SHOW_TILES)
+ outline_tile(rast->tasks[thread_index].tile.color[i]);
+
lp_tile_write_4ub(transfer->texture->format,
rast->tasks[thread_index].tile.color[i],
rast->cbuf_map[i],
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
index a28f6935b6..72f2e8ebf8 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -52,6 +52,8 @@ static const struct debug_named_value lp_debug_flags[] = {
{ "query", DEBUG_QUERY },
{ "screen", DEBUG_SCREEN },
{ "jit", DEBUG_JIT },
+ { "show_tiles", DEBUG_SHOW_TILES },
+ { "show_subtiles", DEBUG_SHOW_SUBTILES },
{NULL, 0}
};
#endif