-typedef void (*pfn_push)(struct nouveau_channel *, void *);
-
-struct nv50_vbo_emitctx
-{
- pfn_push push[16];
- void *map[16];
- unsigned stride[16];
- unsigned nr_ve;
- unsigned vtx_dwords;
- unsigned vtx_max;
-};
-
-static INLINE void
-emit_vtx_next(struct nouveau_channel *chan, struct nv50_vbo_emitctx *emit)
-{
- unsigned i;
-
- for (i = 0; i < emit->nr_ve; ++i) {
- emit->push[i](chan, emit->map[i]);
- emit->map[i] += emit->stride[i];
- }
-}
-
-static INLINE void
-emit_vtx(struct nouveau_channel *chan, struct nv50_vbo_emitctx *emit,
- uint32_t vi)
-{
- unsigned i;
-
- for (i = 0; i < emit->nr_ve; ++i)
- emit->push[i](chan, emit->map[i] + emit->stride[i] * vi);
-}
-
-static INLINE boolean
-nv50_map_vbufs(struct nv50_context *nv50)
-{
- int i;
-
- for (i = 0; i < nv50->vtxbuf_nr; ++i) {
- struct pipe_vertex_buffer *vb = &nv50->vtxbuf[i];
- unsigned size, delta;
-
- if (nouveau_bo(vb->buffer)->map)
- continue;
-
- size = vb->stride * (vb->max_index + 1);
- delta = vb->buffer_offset;
-
- if (!size)
- size = vb->buffer->size - vb->buffer_offset;
-
- if (nouveau_bo_map_range(nouveau_bo(vb->buffer),
- delta, size, NOUVEAU_BO_RD))
- break;
- }
-
- if (i == nv50->vtxbuf_nr)
- return TRUE;
- for (; i >= 0; --i)
- nouveau_bo_unmap(nouveau_bo(nv50->vtxbuf[i].buffer));
- return FALSE;
-}
-
-static INLINE void
-nv50_unmap_vbufs(struct nv50_context *nv50)
-{
- unsigned i;
-
- for (i = 0; i < nv50->vtxbuf_nr; ++i)
- if (nouveau_bo(nv50->vtxbuf[i].buffer)->map)
- nouveau_bo_unmap(nouveau_bo(nv50->vtxbuf[i].buffer));
-}
-
-static void
-emit_b32_1(struct nouveau_channel *chan, void *data)
-{
- uint32_t *v = data;
-
- OUT_RING(chan, v[0]);
-}
-
-static void
-emit_b32_2(struct nouveau_channel *chan, void *data)
-{
- uint32_t *v = data;
-
- OUT_RING(chan, v[0]);
- OUT_RING(chan, v[1]);
-}
-
-static void
-emit_b32_3(struct nouveau_channel *chan, void *data)
-{
- uint32_t *v = data;
-
- OUT_RING(chan, v[0]);
- OUT_RING(chan, v[1]);
- OUT_RING(chan, v[2]);
-}
-
-static void
-emit_b32_4(struct nouveau_channel *chan, void *data)
-{
- uint32_t *v = data;
-
- OUT_RING(chan, v[0]);
- OUT_RING(chan, v[1]);
- OUT_RING(chan, v[2]);
- OUT_RING(chan, v[3]);
-}
-
-static void
-emit_b16_1(struct nouveau_channel *chan, void *data)
-{
- uint16_t *v = data;
-
- OUT_RING(chan, v[0]);
-}
-
-static void
-emit_b16_3(struct nouveau_channel *chan, void *data)
-{
- uint16_t *v = data;
-
- OUT_RING(chan, (v[1] << 16) | v[0]);
- OUT_RING(chan, v[2]);
-}
-
-static void
-emit_b08_1(struct nouveau_channel *chan, void *data)
-{
- uint8_t *v = data;
-
- OUT_RING(chan, v[0]);
-}
-
-static void
-emit_b08_3(struct nouveau_channel *chan, void *data)
-{
- uint8_t *v = data;
-
- OUT_RING(chan, (v[2] << 16) | (v[1] << 8) | v[0]);
-}
-
-static boolean
-emit_prepare(struct nv50_context *nv50, struct nv50_vbo_emitctx *emit,
- unsigned start)
-{
- unsigned i;
-
- if (nv50_map_vbufs(nv50) == FALSE)
- return FALSE;
-
- emit->nr_ve = 0;
- emit->vtx_dwords = 0;
-
- for (i = 0; i < nv50->vtxelt_nr; ++i) {
- struct pipe_vertex_element *ve;
- struct pipe_vertex_buffer *vb;
- unsigned n, size;
- const struct util_format_description *desc;
-
- ve = &nv50->vtxelt[i];
- vb = &nv50->vtxbuf[ve->vertex_buffer_index];
- if (!(nv50->vbo_fifo & (1 << i)))
- continue;
- n = emit->nr_ve++;
-
- emit->stride[n] = vb->stride;
- emit->map[n] = nouveau_bo(vb->buffer)->map +
- (start * vb->stride + ve->src_offset);
-
- desc = util_format_description(ve->src_format);
- assert(desc);
-
- size = util_format_get_component_bits(ve->src_format, UTIL_FORMAT_COLORSPACE_RGB, 0);
-
- assert(ve->nr_components > 0 && ve->nr_components <= 4);
-
- /* It shouldn't be necessary to push the implicit 1s
- * for case 3 and size 8 cases 1, 2, 3.
- */
- switch (size) {
- default:
- NOUVEAU_ERR("unsupported vtxelt size: %u\n", size);
- return FALSE;
- case 32:
- switch (ve->nr_components) {
- case 1: emit->push[n] = emit_b32_1; break;
- case 2: emit->push[n] = emit_b32_2; break;
- case 3: emit->push[n] = emit_b32_3; break;
- case 4: emit->push[n] = emit_b32_4; break;
- }
- emit->vtx_dwords += ve->nr_components;
- break;
- case 16:
- switch (ve->nr_components) {
- case 1: emit->push[n] = emit_b16_1; break;
- case 2: emit->push[n] = emit_b32_1; break;
- case 3: emit->push[n] = emit_b16_3; break;
- case 4: emit->push[n] = emit_b32_2; break;
- }
- emit->vtx_dwords += (ve->nr_components + 1) >> 1;
- break;
- case 8:
- switch (ve->nr_components) {
- case 1: emit->push[n] = emit_b08_1; break;
- case 2: emit->push[n] = emit_b16_1; break;
- case 3: emit->push[n] = emit_b08_3; break;
- case 4: emit->push[n] = emit_b32_1; break;
- }
- emit->vtx_dwords += 1;
- break;
- }
- }
-
- emit->vtx_max = 512 / emit->vtx_dwords;
-
- return TRUE;
-}
-
-static boolean
-nv50_push_arrays(struct nv50_context *nv50, unsigned start, unsigned count)
-{
- struct nouveau_channel *chan = nv50->screen->base.channel;
- struct nouveau_grobj *tesla = nv50->screen->tesla;
- struct nv50_vbo_emitctx emit;
-
- if (emit_prepare(nv50, &emit, start) == FALSE)
- return FALSE;
-
- while (count) {
- unsigned i, dw, nr = MIN2(count, emit.vtx_max);
- dw = nr * emit.vtx_dwords;
-
- BEGIN_RING(chan, tesla, NV50TCL_VERTEX_DATA | 0x40000000, dw);
- for (i = 0; i < nr; ++i)
- emit_vtx_next(chan, &emit);
-
- count -= nr;
- }
- nv50_unmap_vbufs(nv50);
-
- return TRUE;
-}