nv30: import new driver for GeForce FX/6/7 chipsets, and Quadro variants

The primary motivation for this rewrite was to have a maintainable driver
going forward, as nvfx was quite horrible in a lot of ways.

The driver is heavily based on the design of the nv50/nvc0 3d drivers we
already have, and uses the same common buffer/fence code.  It also passes
a HEAP more piglit tests than nvfx did, supports a couple more features,
and a few more to come still probably.

The CPU footprint of this driver is far far less than nvfx, and translates
into far greater framerates in a lot of applications (unless you're using
a CPU that's way way newer than the GPUs of these generations....)

Basically, we once again have a maintained driver for these chipsets \o/

Feel free to report bugs now!

1 files changed, 280 insertions, 0 deletions

diff --git a/src/gallium/drivers/nv30/nv30_push.c b/src/gallium/drivers/nv30/nv30_push.c
new file mode 100644
index 00000000000..16575ee2686
--- /dev/null
+++ b/src/gallium/drivers/nv30/nv30_push.c
@@ -0,0 +1,280 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ *
+ */
+
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+#include "util/u_inlines.h"
+#include "util/u_format.h"
+#include "translate/translate.h"
+
+#include "nouveau/nv_object.xml.h"
+#include "nv30-40_3d.xml.h"
+#include "nv30_context.h"
+#include "nv30_resource.h"
+
+struct push_context {
+   struct nouveau_pushbuf *push;
+
+   void *idxbuf;
+
+   float edgeflag;
+   int edgeflag_attr;
+
+   uint32_t vertex_words;
+   uint32_t packet_vertex_limit;
+
+   struct translate *translate;
+
+   boolean primitive_restart;
+   uint32_t prim;
+   uint32_t restart_index;
+};
+
+static INLINE unsigned
+prim_restart_search_i08(uint8_t *elts, unsigned push, uint8_t index)
+{
+   unsigned i;
+   for (i = 0; i < push; ++i)
+      if (elts[i] == index)
+         break;
+   return i;
+}
+
+static INLINE unsigned
+prim_restart_search_i16(uint16_t *elts, unsigned push, uint16_t index)
+{
+   unsigned i;
+   for (i = 0; i < push; ++i)
+      if (elts[i] == index)
+         break;
+   return i;
+}
+
+static INLINE unsigned
+prim_restart_search_i32(uint32_t *elts, unsigned push, uint32_t index)
+{
+   unsigned i;
+   for (i = 0; i < push; ++i)
+      if (elts[i] == index)
+         break;
+   return i;
+}
+
+static void
+emit_vertices_i08(struct push_context *ctx, unsigned start, unsigned count)
+{
+   uint8_t *elts = (uint8_t *)ctx->idxbuf + start;
+
+   while (count) {
+      unsigned push = MIN2(count, ctx->packet_vertex_limit);
+      unsigned size, nr;
+
+      nr = push;
+      if (ctx->primitive_restart)
+         nr = prim_restart_search_i08(elts, push, ctx->restart_index);
+
+      size = ctx->vertex_words * nr;
+
+      BEGIN_NI04(ctx->push, NV30_3D(VERTEX_DATA), size);
+
+      ctx->translate->run_elts8(ctx->translate, elts, nr, 0, ctx->push->cur);
+
+      ctx->push->cur += size;
+      count -= nr;
+      elts += nr;
+
+      if (nr != push) {
+         BEGIN_NV04(ctx->push, NV30_3D(VB_ELEMENT_U32), 1);
+         PUSH_DATA (ctx->push, ctx->restart_index);
+         count--;
+         elts++;
+      }
+   }
+}
+
+static void
+emit_vertices_i16(struct push_context *ctx, unsigned start, unsigned count)
+{
+   uint16_t *elts = (uint16_t *)ctx->idxbuf + start;
+
+   while (count) {
+      unsigned push = MIN2(count, ctx->packet_vertex_limit);
+      unsigned size, nr;
+
+      nr = push;
+      if (ctx->primitive_restart)
+         nr = prim_restart_search_i16(elts, push, ctx->restart_index);
+
+      size = ctx->vertex_words * nr;
+
+      BEGIN_NI04(ctx->push, NV30_3D(VERTEX_DATA), size);
+
+      ctx->translate->run_elts16(ctx->translate, elts, nr, 0, ctx->push->cur);
+
+      ctx->push->cur += size;
+      count -= nr;
+      elts += nr;
+
+      if (nr != push) {
+         BEGIN_NV04(ctx->push, NV30_3D(VB_ELEMENT_U32), 1);
+         PUSH_DATA (ctx->push, ctx->restart_index);
+         count--;
+         elts++;
+      }
+   }
+}
+
+static void
+emit_vertices_i32(struct push_context *ctx, unsigned start, unsigned count)
+{
+   uint32_t *elts = (uint32_t *)ctx->idxbuf + start;
+
+   while (count) {
+      unsigned push = MIN2(count, ctx->packet_vertex_limit);
+      unsigned size, nr;
+
+      nr = push;
+      if (ctx->primitive_restart)
+         nr = prim_restart_search_i32(elts, push, ctx->restart_index);
+
+      size = ctx->vertex_words * nr;
+
+      BEGIN_NI04(ctx->push, NV30_3D(VERTEX_DATA), size);
+
+      ctx->translate->run_elts(ctx->translate, elts, nr, 0, ctx->push->cur);
+
+      ctx->push->cur += size;
+      count -= nr;
+      elts += nr;
+
+      if (nr != push) {
+         BEGIN_NV04(ctx->push, NV30_3D(VB_ELEMENT_U32), 1);
+         PUSH_DATA (ctx->push, ctx->restart_index);
+         count--;
+         elts++;
+      }
+   }
+}
+
+static void
+emit_vertices_seq(struct push_context *ctx, unsigned start, unsigned count)
+{
+   while (count) {
+      unsigned push = MIN2(count, ctx->packet_vertex_limit);
+      unsigned size = ctx->vertex_words * push;
+
+      BEGIN_NI04(ctx->push, NV30_3D(VERTEX_DATA), size);
+
+      ctx->translate->run(ctx->translate, start, push, 0, ctx->push->cur);
+      ctx->push->cur += size;
+      count -= push;
+      start += push;
+   }
+}
+
+void
+nv30_push_vbo(struct nv30_context *nv30, const struct pipe_draw_info *info)
+{
+   struct push_context ctx;
+   unsigned i, index_size;
+   boolean apply_bias = info->indexed && info->index_bias;
+
+   ctx.push = nv30->base.pushbuf;
+   ctx.translate = nv30->vertex->translate;
+   ctx.packet_vertex_limit = nv30->vertex->vtx_per_packet_max;
+   ctx.vertex_words = nv30->vertex->vtx_size;
+
+   for (i = 0; i < nv30->num_vtxbufs; ++i) {
+      uint8_t *data;
+      struct pipe_vertex_buffer *vb = &nv30->vtxbuf[i];
+      struct nv04_resource *res = nv04_resource(vb->buffer);
+
+      data = nouveau_resource_map_offset(&nv30->base, res,
+                                         vb->buffer_offset, NOUVEAU_BO_RD);
+
+      if (apply_bias)
+         data += info->index_bias * vb->stride;
+
+      ctx.translate->set_buffer(ctx.translate, i, data, vb->stride, ~0);
+   }
+
+   if (info->indexed) {
+      ctx.idxbuf = nouveau_resource_map_offset(&nv30->base,
+                                               nv04_resource(nv30->idxbuf.buffer),
+                                               nv30->idxbuf.offset, NOUVEAU_BO_RD);
+      if (!ctx.idxbuf) {
+         nv30_state_release(nv30);
+         return;
+      }
+      index_size = nv30->idxbuf.index_size;
+      ctx.primitive_restart = info->primitive_restart;
+      ctx.restart_index = info->restart_index;
+   } else {
+      ctx.idxbuf = NULL;
+      index_size = 0;
+      ctx.primitive_restart = FALSE;
+      ctx.restart_index = 0;
+   }
+
+   if (nv30->screen->eng3d->oclass >= NV40_3D_CLASS) {
+      BEGIN_NV04(ctx.push, NV40_3D(PRIM_RESTART_ENABLE), 2);
+      PUSH_DATA (ctx.push, info->primitive_restart);
+      PUSH_DATA (ctx.push, info->restart_index);
+      nv30->state.prim_restart = info->primitive_restart;
+   }
+
+   ctx.prim = nv30_prim_gl(info->mode);
+
+   PUSH_RESET(ctx.push, BUFCTX_IDXBUF);
+   BEGIN_NV04(ctx.push, NV30_3D(VERTEX_BEGIN_END), 1);
+   PUSH_DATA (ctx.push, ctx.prim);
+   switch (index_size) {
+   case 0:
+      emit_vertices_seq(&ctx, info->start, info->count);
+      break;
+   case 1:
+      emit_vertices_i08(&ctx, info->start, info->count);
+      break;
+   case 2:
+      emit_vertices_i16(&ctx, info->start, info->count);
+      break;
+   case 4:
+      emit_vertices_i32(&ctx, info->start, info->count);
+      break;
+   default:
+      assert(0);
+      break;
+   }
+   BEGIN_NV04(ctx.push, NV30_3D(VERTEX_BEGIN_END), 1);
+   PUSH_DATA (ctx.push, NV30_3D_VERTEX_BEGIN_END_STOP);
+
+   if (info->indexed)
+      nouveau_resource_unmap(nv04_resource(nv30->idxbuf.buffer));
+
+   for (i = 0; i < nv30->num_vtxbufs; ++i)
+      nouveau_resource_unmap(nv04_resource(nv30->vtxbuf[i].buffer));
+
+   nv30_state_release(nv30);
+}