| /************************************************************************** |
| * |
| * 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. |
| * |
| **************************************************************************/ |
| |
| /** |
| * \file |
| * Build post-transformation, post-clipping vertex buffers and element |
| * lists by hooking into the end of the primitive pipeline and |
| * manipulating the vertex_id field in the vertex headers. |
| * |
| * XXX: work in progress |
| * |
| * \author José Fonseca <jrfonseca@tungstengraphics.com> |
| * \author Keith Whitwell <keith@tungstengraphics.com> |
| */ |
| |
| |
| #include "util/u_debug.h" |
| #include "pipe/p_inlines.h" |
| |
| #include "nv10_context.h" |
| #include "nv10_state.h" |
| |
| #include "draw/draw_vbuf.h" |
| |
| /** |
| * Primitive renderer for nv10. |
| */ |
| struct nv10_vbuf_render { |
| struct vbuf_render base; |
| |
| struct nv10_context *nv10; |
| |
| /** Vertex buffer */ |
| struct pipe_buffer* buffer; |
| |
| /** Vertex size in bytes */ |
| unsigned vertex_size; |
| |
| /** Hardware primitive */ |
| unsigned hwprim; |
| }; |
| |
| |
| void nv10_vtxbuf_bind( struct nv10_context* nv10 ) |
| { |
| int i; |
| for(i = 0; i < 8; i++) { |
| BEGIN_RING(celsius, NV10TCL_VERTEX_ARRAY_ATTRIB_OFFSET(i), 1); |
| OUT_RING(0/*nv10->vtxbuf*/); |
| BEGIN_RING(celsius, NV10TCL_VERTEX_ARRAY_ATTRIB_FORMAT(i) ,1); |
| OUT_RING(0/*XXX*/); |
| } |
| } |
| |
| /** |
| * Basically a cast wrapper. |
| */ |
| static INLINE struct nv10_vbuf_render * |
| nv10_vbuf_render( struct vbuf_render *render ) |
| { |
| assert(render); |
| return (struct nv10_vbuf_render *)render; |
| } |
| |
| |
| static const struct vertex_info * |
| nv10_vbuf_render_get_vertex_info( struct vbuf_render *render ) |
| { |
| struct nv10_vbuf_render *nv10_render = nv10_vbuf_render(render); |
| struct nv10_context *nv10 = nv10_render->nv10; |
| |
| nv10_emit_hw_state(nv10); |
| |
| return &nv10->vertex_info; |
| } |
| |
| static boolean |
| nv10_vbuf_render_allocate_vertices( struct vbuf_render *render, |
| ushort vertex_size, |
| ushort nr_vertices ) |
| { |
| struct nv10_vbuf_render *nv10_render = nv10_vbuf_render(render); |
| struct nv10_context *nv10 = nv10_render->nv10; |
| struct pipe_screen *screen = nv10->pipe.screen; |
| size_t size = (size_t)vertex_size * (size_t)nr_vertices; |
| |
| assert(!nv10_render->buffer); |
| nv10_render->buffer = screen->buffer_create(screen, 64, PIPE_BUFFER_USAGE_VERTEX, size); |
| |
| nv10->dirty |= NV10_NEW_VTXARRAYS; |
| |
| if (nv10_render->buffer) |
| return FALSE; |
| return TRUE; |
| } |
| |
| static void * |
| nv10_vbuf_render_map_vertices( struct vbuf_render *render ) |
| { |
| struct nv10_vbuf_render *nv10_render = nv10_vbuf_render(render); |
| struct nv10_context *nv10 = nv10_render->nv10; |
| struct pipe_screen *pscreen = nv10->pipe.screen; |
| |
| return pipe_buffer_map(pscreen, nv10_render->buffer, |
| PIPE_BUFFER_USAGE_CPU_WRITE); |
| } |
| |
| static void |
| nv10_vbuf_render_unmap_vertices( struct vbuf_render *render, |
| ushort min_index, |
| ushort max_index ) |
| { |
| struct nv10_vbuf_render *nv10_render = nv10_vbuf_render(render); |
| struct nv10_context *nv10 = nv10_render->nv10; |
| struct pipe_screen *pscreen = nv10->pipe.screen; |
| |
| assert(!nv10_render->buffer); |
| pipe_buffer_unmap(pscreen, nv10_render->buffer); |
| } |
| |
| static boolean |
| nv10_vbuf_render_set_primitive( struct vbuf_render *render, |
| unsigned prim ) |
| { |
| struct nv10_vbuf_render *nv10_render = nv10_vbuf_render(render); |
| unsigned hwp = nvgl_primitive(prim); |
| if (hwp == 0) |
| return FALSE; |
| |
| nv10_render->hwprim = hwp; |
| return TRUE; |
| } |
| |
| |
| static void |
| nv10_vbuf_render_draw( struct vbuf_render *render, |
| const ushort *indices, |
| uint nr_indices) |
| { |
| struct nv10_vbuf_render *nv10_render = nv10_vbuf_render(render); |
| struct nv10_context *nv10 = nv10_render->nv10; |
| int push, i; |
| |
| nv10_emit_hw_state(nv10); |
| |
| BEGIN_RING(celsius, NV10TCL_VERTEX_ARRAY_OFFSET_POS, 1); |
| OUT_RELOCl(nv10_render->buffer, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_GART | NOUVEAU_BO_RD); |
| |
| BEGIN_RING(celsius, NV10TCL_VERTEX_BUFFER_BEGIN_END, 1); |
| OUT_RING(nv10_render->hwprim); |
| |
| if (nr_indices & 1) { |
| BEGIN_RING(celsius, NV10TCL_VB_ELEMENT_U32, 1); |
| OUT_RING (indices[0]); |
| indices++; nr_indices--; |
| } |
| |
| while (nr_indices) { |
| // XXX too big/small ? check the size |
| push = MIN2(nr_indices, 1200 * 2); |
| |
| BEGIN_RING_NI(celsius, NV10TCL_VB_ELEMENT_U16, push >> 1); |
| for (i = 0; i < push; i+=2) |
| OUT_RING((indices[i+1] << 16) | indices[i]); |
| |
| nr_indices -= push; |
| indices += push; |
| } |
| |
| BEGIN_RING(celsius, NV10TCL_VERTEX_BUFFER_BEGIN_END, 1); |
| OUT_RING (0); |
| } |
| |
| |
| static void |
| nv10_vbuf_render_release_vertices( struct vbuf_render *render ) |
| { |
| struct nv10_vbuf_render *nv10_render = nv10_vbuf_render(render); |
| |
| assert(nv10_render->buffer); |
| pipe_buffer_reference(&nv10_render->buffer, NULL); |
| } |
| |
| |
| static void |
| nv10_vbuf_render_destroy( struct vbuf_render *render ) |
| { |
| struct nv10_vbuf_render *nv10_render = nv10_vbuf_render(render); |
| FREE(nv10_render); |
| } |
| |
| |
| /** |
| * Create a new primitive render. |
| */ |
| static struct vbuf_render * |
| nv10_vbuf_render_create( struct nv10_context *nv10 ) |
| { |
| struct nv10_vbuf_render *nv10_render = CALLOC_STRUCT(nv10_vbuf_render); |
| |
| nv10_render->nv10 = nv10; |
| |
| nv10_render->base.max_vertex_buffer_bytes = 16*1024; |
| nv10_render->base.max_indices = 1024; |
| nv10_render->base.get_vertex_info = nv10_vbuf_render_get_vertex_info; |
| nv10_render->base.allocate_vertices = nv10_vbuf_render_allocate_vertices; |
| nv10_render->base.map_vertices = nv10_vbuf_render_map_vertices; |
| nv10_render->base.unmap_vertices = nv10_vbuf_render_unmap_vertices; |
| nv10_render->base.set_primitive = nv10_vbuf_render_set_primitive; |
| nv10_render->base.draw = nv10_vbuf_render_draw; |
| nv10_render->base.release_vertices = nv10_vbuf_render_release_vertices; |
| nv10_render->base.destroy = nv10_vbuf_render_destroy; |
| |
| return &nv10_render->base; |
| } |
| |
| |
| /** |
| * Create a new primitive vbuf/render stage. |
| */ |
| struct draw_stage *nv10_draw_vbuf_stage( struct nv10_context *nv10 ) |
| { |
| struct vbuf_render *render; |
| struct draw_stage *stage; |
| |
| render = nv10_vbuf_render_create(nv10); |
| if(!render) |
| return NULL; |
| |
| stage = draw_vbuf_stage( nv10->draw, render ); |
| if(!stage) { |
| render->destroy(render); |
| return NULL; |
| } |
| |
| return stage; |
| } |