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llvmpipe: added show_tiles and show_subtiles debug options

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These options draw lines over the tiles to show the 64x64 tile
bounds and 16x16 sub-tile bounds.  For debugging/visualization.
This commit is contained in:
Brian Paul 2010-01-18 13:10:10 -07:00
parent 591401ff05
commit 62623c4dc5
3 changed files with 65 additions and 0 deletions
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3
src/gallium/drivers/llvmpipe/lp_debug.h
View file

@ -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;

60
src/gallium/drivers/llvmpipe/lp_rast.c
View file

@ -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],

2
src/gallium/drivers/llvmpipe/lp_screen.c
View file

@ -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