+ if (dirty & (FD_DIRTY_VIEWPORT | FD_DIRTY_RASTERIZER | FD_DIRTY_FRAMEBUFFER)) {
+ float zmin, zmax;
+ int depth = 24;
+ if (ctx->batch->framebuffer.zsbuf) {
+ depth = util_format_get_component_bits(
+ pipe_surface_format(ctx->batch->framebuffer.zsbuf),
+ UTIL_FORMAT_COLORSPACE_ZS, 0);
+ }
+ util_viewport_zmin_zmax(&ctx->viewport, ctx->rasterizer->clip_halfz,
+ &zmin, &zmax);
+
+ OUT_PKT0(ring, REG_A4XX_RB_VPORT_Z_CLAMP(0), 2);
+ if (depth == 32) {
+ OUT_RING(ring, fui(zmin));
+ OUT_RING(ring, fui(zmax));
+ } else if (depth == 16) {
+ OUT_RING(ring, (uint32_t)(zmin * 0xffff));
+ OUT_RING(ring, (uint32_t)(zmax * 0xffff));
+ } else {
+ OUT_RING(ring, (uint32_t)(zmin * 0xffffff));
+ OUT_RING(ring, (uint32_t)(zmax * 0xffffff));
+ }
+ }
+