gallium: added fb_width/height fields to softpipe context

These are convenience fields.  Otherwise, we have to check cbuf[0] or zsbuf
in various places.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/gallium/drivers/softpipe/sp_state_surface.c b/src/gallium/drivers/softpipe/sp_state_surface.c
index 124b18b7081..2f556844644 100644
--- a/src/gallium/drivers/softpipe/sp_state_surface.c
+++ b/src/gallium/drivers/softpipe/sp_state_surface.c
@@ -48,6 +48,9 @@ softpipe_set_framebuffer_state(struct pipe_context *pipe,
    struct softpipe_context *sp = softpipe_context(pipe);
    uint i;
 
+   /* updated below */
+   sp->fb_width = sp->fb_height = 0;
+
    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
       /* check if changing cbuf */
       if (sp->framebuffer.cbufs[i] != fb->cbufs[i]) {
@@ -60,6 +63,10 @@ softpipe_set_framebuffer_state(struct pipe_context *pipe,
          /* update cache */
          sp_tile_cache_set_surface(sp->cbuf_cache[i], fb->cbufs[i]);
       }
+      if (fb->cbufs[i]) {
+         sp->fb_width = fb->cbufs[i]->width;
+         sp->fb_height = fb->cbufs[i]->height;
+      }
    }
 
    sp->framebuffer.num_cbufs = fb->num_cbufs;
@@ -74,6 +81,11 @@ softpipe_set_framebuffer_state(struct pipe_context *pipe,
 
       /* update cache */
       sp_tile_cache_set_surface(sp->zsbuf_cache, fb->zsbuf);
+
+      if (!sp->fb_width && fb->zsbuf) {
+         sp->fb_width = fb->zsbuf->width;
+         sp->fb_height = fb->zsbuf->height;
+      }
    }
 
 #if 0