diff options
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_pt_so_emit.c')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_pt_so_emit.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt_so_emit.c b/src/gallium/auxiliary/draw/draw_pt_so_emit.c new file mode 100644 index 0000000000..b982e4c529 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_so_emit.c @@ -0,0 +1,191 @@ +/************************************************************************** + * + * Copyright 2010 VMware, Inc. + * 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 VMWARE 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. + * + **************************************************************************/ + +#include "util/u_memory.h" +#include "draw/draw_context.h" +#include "draw/draw_private.h" +#include "draw/draw_vbuf.h" +#include "draw/draw_vertex.h" +#include "draw/draw_pt.h" +#include "translate/translate.h" +#include "translate/translate_cache.h" +#include "util/u_format.h" + +struct pt_so_emit { + struct draw_context *draw; + + struct translate *translate; + + struct translate_cache *cache; + unsigned prim; + + const struct vertex_info *vinfo; + boolean has_so; +}; + +static void +prepare_so_emit( struct pt_so_emit *emit, + const struct vertex_info *vinfo ) +{ + struct draw_context *draw = emit->draw; + unsigned i; + struct translate_key hw_key; + unsigned dst_offset = 0; + unsigned output_stride = 0; + + if (emit->has_so) { + for (i = 0; i < draw->so.state.num_outputs; ++i) { + unsigned src_offset = (draw->so.state.register_index[i] * 4 * + sizeof(float) ); + unsigned output_format; + unsigned emit_sz = 0; + /*unsigned output_bytes = util_format_get_blocksize(output_format); + unsigned nr_compo = util_format_get_nr_components(output_format);*/ + + output_format = draw_translate_vinfo_format(vinfo->attrib[i].emit); + emit_sz = draw_translate_vinfo_size(vinfo->attrib[i].emit); + + /* doesn't handle EMIT_OMIT */ + assert(emit_sz != 0); + + hw_key.element[i].type = TRANSLATE_ELEMENT_NORMAL; + hw_key.element[i].input_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + hw_key.element[i].input_buffer = 0; + hw_key.element[i].input_offset = src_offset; + hw_key.element[i].instance_divisor = 0; + hw_key.element[i].output_format = output_format; + hw_key.element[i].output_offset = dst_offset; + + dst_offset += emit_sz; + output_stride += emit_sz; + } + hw_key.nr_elements = draw->so.state.num_outputs; + hw_key.output_stride = output_stride; + + if (!emit->translate || + translate_key_compare(&emit->translate->key, &hw_key) != 0) + { + translate_key_sanitize(&hw_key); + emit->translate = translate_cache_find(emit->cache, &hw_key); + } + } else { + /* no stream output */ + emit->translate = NULL; + } +} + + +void draw_pt_so_emit_prepare( struct pt_so_emit *emit, + unsigned prim ) +{ + struct draw_context *draw = emit->draw; + boolean ok; + + emit->has_so = (draw->so.state.num_outputs > 0); + + if (!emit->has_so) + return; + + /* XXX: need to flush to get prim_vbuf.c to release its allocation?? + */ + draw_do_flush( draw, DRAW_FLUSH_BACKEND ); + + emit->prim = prim; + + ok = draw->render->set_primitive(draw->render, emit->prim); + if (!ok) { + assert(0); + return; + } + + /* Must do this after set_primitive() above: */ + emit->vinfo = draw->render->get_vertex_info(draw->render); + + prepare_so_emit( emit, emit->vinfo ); +} + + +void draw_pt_so_emit( struct pt_so_emit *emit, + const float (*vertex_data)[4], + unsigned vertex_count, + unsigned stride ) +{ + struct draw_context *draw = emit->draw; + struct translate *translate = emit->translate; + struct vbuf_render *render = draw->render; + void *so_buffer; + + if (!emit->has_so) + return; + + so_buffer = draw->so.buffers[0]; + + /* XXX: need to flush to get prim_vbuf.c to release its allocation??*/ + draw_do_flush( draw, DRAW_FLUSH_BACKEND ); + + if (vertex_count == 0) + return; + + if (vertex_count >= UNDEFINED_VERTEX_ID) { + assert(0); + return; + } + + + /* XXX we only support single output buffer right now */ + debug_assert(draw->so.num_buffers >= 0); + + translate->set_buffer(translate, 0, vertex_data, + stride, ~0); + translate->run(translate, 0, vertex_count, + draw->instance_id, so_buffer); +} + + +struct pt_so_emit *draw_pt_so_emit_create( struct draw_context *draw ) +{ + struct pt_so_emit *emit = CALLOC_STRUCT(pt_so_emit); + if (!emit) + return NULL; + + emit->draw = draw; + emit->cache = translate_cache_create(); + if (!emit->cache) { + FREE(emit); + return NULL; + } + + return emit; +} + +void draw_pt_so_emit_destroy( struct pt_so_emit *emit ) +{ + if (emit->cache) + translate_cache_destroy(emit->cache); + + FREE(emit); +} |