1 files changed, 211 insertions, 0 deletions
diff --git a/src/gallium/drivers/cell/ppu/cell_render.c b/src/gallium/drivers/cell/ppu/cell_render.c
new file mode 100644
index 00000000000..79cb8df82fa
--- /dev/null
+++ b/src/gallium/drivers/cell/ppu/cell_render.c
@@ -0,0 +1,211 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
+ * 
+ **************************************************************************/
+
+/**
+ * \brief  Last stage of 'draw' pipeline: send tris to SPUs.
+ * \author  Brian Paul
+ */
+
+#include "cell_context.h"
+#include "cell_render.h"
+#include "cell_spu.h"
+#include "util/u_memory.h"
+#include "draw/draw_private.h"
+
+
+struct render_stage {
+   struct draw_stage stage; /**< This must be first (base class) */
+
+   struct cell_context *cell;
+};
+
+
+static INLINE struct render_stage *
+render_stage(struct draw_stage *stage)
+{
+   return (struct render_stage *) stage;
+}
+
+
+static void render_begin( struct draw_stage *stage )
+{
+#if 0
+   struct render_stage *render = render_stage(stage);
+   struct cell_context *sp = render->cell;
+   const struct pipe_shader_state *fs = &render->cell->fs->shader;
+   render->quad.nr_attrs = render->cell->nr_frag_attrs;
+
+   render->firstFpInput = fs->input_semantic_name[0];
+
+   sp->quad.first->begin(sp->quad.first);
+#endif
+}
+
+
+static void render_end( struct draw_stage *stage )
+{
+}
+
+
+static void reset_stipple_counter( struct draw_stage *stage )
+{
+   struct render_stage *render = render_stage(stage);
+   /*render->cell->line_stipple_counter = 0;*/
+}
+
+
+static void
+render_point(struct draw_stage *stage, struct prim_header *prim)
+{
+}
+
+
+static void
+render_line(struct draw_stage *stage, struct prim_header *prim)
+{
+}
+
+
+/** Write a vertex into the prim buffer */
+static void
+save_vertex(struct cell_prim_buffer *buf, uint pos,
+            const struct vertex_header *vert)
+{
+   uint attr, j;
+
+   for (attr = 0; attr < 2; attr++) {
+      for (j = 0; j < 4; j++) {
+         buf->vertex[pos][attr][j] = vert->data[attr][j];
+      }
+   }
+
+   /* update bounding box */
+   if (vert->data[0][0] < buf->xmin)
+      buf->xmin = vert->data[0][0];
+   if (vert->data[0][0] > buf->xmax)
+      buf->xmax = vert->data[0][0];
+   if (vert->data[0][1] < buf->ymin)
+      buf->ymin = vert->data[0][1];
+   if (vert->data[0][1] > buf->ymax)
+      buf->ymax = vert->data[0][1];
+}
+
+
+static void
+render_tri(struct draw_stage *stage, struct prim_header *prim)
+{
+   struct render_stage *rs = render_stage(stage);
+   struct cell_context *cell = rs->cell;
+   struct cell_prim_buffer *buf = &cell->prim_buffer;
+   uint i;
+
+   if (buf->num_verts + 3 > CELL_MAX_VERTS) {
+      cell_flush_prim_buffer(cell);
+   }
+
+   i = buf->num_verts;
+   assert(i+2 <= CELL_MAX_VERTS);
+   save_vertex(buf, i+0, prim->v[0]);
+   save_vertex(buf, i+1, prim->v[1]);
+   save_vertex(buf, i+2, prim->v[2]);
+   buf->num_verts += 3;
+}
+
+
+/**
+ * Send the a RENDER command to all SPUs to have them render the prims
+ * in the current prim_buffer.
+ */
+void
+cell_flush_prim_buffer(struct cell_context *cell)
+{
+   uint i;
+
+   if (cell->prim_buffer.num_verts == 0)
+      return;
+
+   for (i = 0; i < cell->num_spus; i++) {
+      struct cell_command_render *render = &cell_global.command[i].render;
+      render->prim_type = PIPE_PRIM_TRIANGLES;
+      render->num_verts = cell->prim_buffer.num_verts;
+      render->front_winding = cell->rasterizer->front_winding;
+      render->vertex_size = cell->vertex_info->size * 4;
+      render->xmin = cell->prim_buffer.xmin;
+      render->ymin = cell->prim_buffer.ymin;
+      render->xmax = cell->prim_buffer.xmax;
+      render->ymax = cell->prim_buffer.ymax;
+      render->vertex_data = &cell->prim_buffer.vertex;
+      ASSERT_ALIGN16(render->vertex_data);
+      send_mbox_message(cell_global.spe_contexts[i], CELL_CMD_RENDER);
+   }
+
+   cell->prim_buffer.num_verts = 0;
+
+   cell->prim_buffer.xmin = 1e100;
+   cell->prim_buffer.ymin = 1e100;
+   cell->prim_buffer.xmax = -1e100;
+   cell->prim_buffer.ymax = -1e100;
+
+   /* XXX temporary, need to double-buffer the prim buffer until we get
+    * a real command buffer/list system.
+    */
+   cell_flush(&cell->pipe, 0x0);
+}
+
+
+
+static void render_destroy( struct draw_stage *stage )
+{
+   FREE( stage );
+}
+
+
+/**
+ * Create a new draw/render stage.  This will be plugged into the
+ * draw module as the last pipeline stage.
+ */
+struct draw_stage *cell_draw_render_stage( struct cell_context *cell )
+{
+   struct render_stage *render = CALLOC_STRUCT(render_stage);
+
+   render->cell = cell;
+   render->stage.draw = cell->draw;
+   render->stage.begin = render_begin;
+   render->stage.point = render_point;
+   render->stage.line = render_line;
+   render->stage.tri = render_tri;
+   render->stage.end = render_end;
+   render->stage.reset_stipple_counter = reset_stipple_counter;
+   render->stage.destroy = render_destroy;
+
+   /*
+   render->quad.coef = render->coef;
+   render->quad.posCoef = &render->posCoef;
+   */
+
+   return &render->stage;
+}