/**
* Clear the rasterizer's current color tile.
* This is a bin command called during bin processing.
*/
static void
lp_rast_clear_color(struct lp_rasterizer_task *task,
const union lp_rast_cmd_arg arg)
{
const struct lp_scene *scene = task->scene;
const uint8_t *clear_color = arg.clear_color;
unsigned i;
LP_DBG(DEBUG_RAST, "%s 0x%x,0x%x,0x%x,0x%x\n", __FUNCTION__,
clear_color[0],
clear_color[1],
clear_color[2],
clear_color[3]);
if (clear_color[0] == clear_color[1] &&
clear_color[1] == clear_color[2] &&
clear_color[2] == clear_color[3]) {
/* clear to grayscale value {x, x, x, x} */
for (i = 0; i < scene->fb.nr_cbufs; i++) {
uint8_t *ptr =
lp_rast_get_color_tile_pointer(task, i, LP_TEX_USAGE_WRITE_ALL);
memset(ptr, clear_color[0], TILE_SIZE * TILE_SIZE * 4);
}
}
else {
/* Non-gray color.
* Note: if the swizzled tile layout changes (see TILE_PIXEL) this code
* will need to change. It'll be pretty obvious when clearing no longer
* works.
*/
const unsigned chunk = TILE_SIZE / 4;
for (i = 0; i < scene->fb.nr_cbufs; i++) {
uint8_t *c =
lp_rast_get_color_tile_pointer(task, i, LP_TEX_USAGE_WRITE_ALL);
unsigned j;
for (j = 0; j < 4 * TILE_SIZE; j++) {
memset(c, clear_color[0], chunk);
c += chunk;
memset(c, clear_color[1], chunk);
c += chunk;
memset(c, clear_color[2], chunk);
c += chunk;
memset(c, clear_color[3], chunk);
c += chunk;
}
}
}
LP_COUNT(nr_color_tile_clear);
}
/**
* Run the shader on all blocks in a tile. This is used when a tile is
* completely contained inside a triangle, and the shader is opaque.
* This is a bin command called during bin processing.
*/
static void
lp_rast_shade_tile_opaque(struct lp_rasterizer_task *task,
const union lp_rast_cmd_arg arg)
{
const struct lp_scene *scene = task->scene;
unsigned i;
LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
/* this will prevent converting the layout from tiled to linear */
for (i = 0; i < scene->fb.nr_cbufs; i++) {
(void)lp_rast_get_color_tile_pointer(task, i, LP_TEX_USAGE_WRITE_ALL);
}
lp_rast_shade_tile(task, arg);
}
