lima: move damage bound build to resource

Reviewed-and-Tested-by: Vasily Khoruzhick <[email protected]>
Signed-off-by: Qiang Yu <[email protected]>

3 files changed, 41 insertions, 22 deletions

diff --git a/src/gallium/drivers/lima/lima_draw.c b/src/gallium/drivers/lima/lima_draw.c
index 6bd738c55ed..c635e5a87bf 100644
--- a/src/gallium/drivers/lima/lima_draw.c
+++ b/src/gallium/drivers/lima/lima_draw.c
@@ -601,19 +601,10 @@ static void
 lima_update_damage_pp_stream(struct lima_context *ctx)
 {
    struct lima_damage_region *ds = lima_ctx_get_damage(ctx);
-   struct pipe_scissor_state max = ds->region[0];
+   struct pipe_scissor_state *bound = &ds->bound;
 
-   /* find a max region to cover all the damage region */
-   for (int i = 1; i < ds->num_region; i++) {
-      struct pipe_scissor_state *ss = ds->region + i;
-      max.minx = MIN2(max.minx, ss->minx);
-      max.miny = MIN2(max.miny, ss->miny);
-      max.maxx = MAX2(max.maxx, ss->maxx);
-      max.maxy = MAX2(max.maxy, ss->maxy);
-   }
-
-   int tiled_w = max.maxx - max.minx;
-   int tiled_h = max.maxy - max.miny;
+   int tiled_w = bound->maxx - bound->minx;
+   int tiled_h = bound->maxy - bound->miny;
    struct lima_screen *screen = lima_screen(ctx->base.screen);
    int size = lima_get_pp_stream_size(
       screen->num_pp, tiled_w, tiled_h, ctx->pp_stream.offset);
@@ -627,7 +618,7 @@ lima_update_damage_pp_stream(struct lima_context *ctx)
    ctx->pp_stream.bo = res->bo;
    ctx->pp_stream.bo_offset = offset;
 
-   lima_update_pp_stream(ctx, max.minx, max.miny, tiled_w, tiled_h);
+   lima_update_pp_stream(ctx, bound->minx, bound->miny, tiled_w, tiled_h);
 
    lima_submit_add_bo(ctx->pp_submit, res->bo, LIMA_SUBMIT_BO_READ);
    pipe_resource_reference(&pres, NULL);
diff --git a/src/gallium/drivers/lima/lima_resource.c b/src/gallium/drivers/lima/lima_resource.c
index 2f9081c3d11..faa129998c3 100644
--- a/src/gallium/drivers/lima/lima_resource.c
+++ b/src/gallium/drivers/lima/lima_resource.c
@@ -347,6 +347,36 @@ lima_resource_get_handle(struct pipe_screen *pscreen,
 }
 
 static void
+get_scissor_from_box(struct pipe_scissor_state *s,
+                     const struct pipe_box *b, int h)
+{
+   int y = h - (b->y + b->height);
+   /* region in tile unit */
+   s->minx = b->x >> 4;
+   s->miny = y >> 4;
+   s->maxx = (b->x + b->width + 0xf) >> 4;
+   s->maxy = (y + b->height + 0xf) >> 4;
+}
+
+static void
+get_damage_bound_box(struct pipe_resource *pres,
+                     const struct pipe_box *rects,
+                     unsigned int nrects,
+                     struct pipe_scissor_state *bound)
+{
+   struct pipe_box b = rects[0];
+
+   for (int i = 1; i < nrects; i++)
+      u_box_union_2d(&b, &b, rects + i);
+
+   int ret = u_box_clip_2d(&b, &b, pres->width0, pres->height0);
+   if (ret < 0)
+      memset(bound, 0, sizeof(*bound));
+   else
+      get_scissor_from_box(bound, &b, pres->height0);
+}
+
+static void
 lima_resource_set_damage_region(struct pipe_screen *pscreen,
                                 struct pipe_resource *pres,
                                 unsigned int nrects,
@@ -379,19 +409,16 @@ lima_resource_set_damage_region(struct pipe_screen *pscreen,
          return;
    }
 
+   struct pipe_scissor_state *bound = &damage->bound;
+   get_damage_bound_box(pres, rects, nrects, bound);
+
    damage->region = CALLOC(nrects, sizeof(*damage->region));
    if (!damage->region)
       return;
 
-   for (i = 0; i < nrects; i++) {
-      struct pipe_scissor_state *r = damage->region + i;
-      int y = pres->height0 - (rects[i].y + rects[i].height);
-      /* region in tile unit */
-      r->minx = rects[i].x >> 4;
-      r->miny = y >> 4;
-      r->maxx = (rects[i].x + rects[i].width + 0xf) >> 4;
-      r->maxy = (y + rects[i].height + 0xf) >> 4;
-   }
+   for (i = 0; i < nrects; i++)
+      get_scissor_from_box(damage->region + i, rects + i,
+                           pres->height0);
 
    /* is region aligned to tiles? */
    damage->aligned = true;
diff --git a/src/gallium/drivers/lima/lima_resource.h b/src/gallium/drivers/lima/lima_resource.h
index 7e7a9628a86..3c2afd8aa4c 100644
--- a/src/gallium/drivers/lima/lima_resource.h
+++ b/src/gallium/drivers/lima/lima_resource.h
@@ -40,6 +40,7 @@ struct lima_resource_level {
 
 struct lima_damage_region {
    struct pipe_scissor_state *region;
+   struct pipe_scissor_state bound;
    unsigned num_region;
    bool aligned;
 };