+
+static inline enum pc_di_index_size
+size2indextype(unsigned index_size)
+{
+ switch (index_size) {
+ case 1: return INDEX_SIZE_8_BIT;
+ case 2: return INDEX_SIZE_16_BIT;
+ case 4: return INDEX_SIZE_32_BIT;
+ }
+ DBG("unsupported index size: %d", index_size);
+ assert(0);
+ return INDEX_SIZE_IGN;
+}
+
+/* this is same for a2xx/a3xx, so split into helper: */
+static inline void
+fd_draw_emit(struct fd_context *ctx, struct fd_ringbuffer *ring,
+ enum pc_di_primtype primtype,
+ enum pc_di_vis_cull_mode vismode,
+ const struct pipe_draw_info *info)
+{
+ struct pipe_index_buffer *idx = &ctx->indexbuf;
+ struct fd_bo *idx_bo = NULL;
+ enum pc_di_index_size idx_type = INDEX_SIZE_IGN;
+ enum pc_di_src_sel src_sel;
+ uint32_t idx_size, idx_offset;
+
+ if (info->indexed) {
+ assert(!idx->user_buffer);
+
+ idx_bo = fd_resource(idx->buffer)->bo;
+ idx_type = size2indextype(idx->index_size);
+ idx_size = idx->index_size * info->count;
+ idx_offset = idx->offset + (info->start * idx->index_size);
+ src_sel = DI_SRC_SEL_DMA;
+ } else {
+ idx_bo = NULL;
+ idx_type = INDEX_SIZE_IGN;
+ idx_size = 0;
+ idx_offset = 0;
+ src_sel = DI_SRC_SEL_AUTO_INDEX;
+ }
+
+ fd_draw(ctx, ring, primtype, vismode, src_sel,
+ info->count, info->instance_count - 1,
+ idx_type, idx_size, idx_offset, idx_bo);
+}
+