utypeinfo.rar

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  • 2015-09-15 13:39
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This is used in all cases except pure passthrough (draw_pt_fetch_emit.c) which has its own version to translate directly to hw vertices.
utypeinfo.rar
  • draw_pt_post_vs.c
    6.4KB
  • utypeinfo.c
    1.1KB
  • draw_pt_fetch.c
    7.2KB
内容介绍
/************************************************************************** * * Copyright 2008 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. * **************************************************************************/ #include "util/u_memory.h" #include "util/u_math.h" #include "util/u_format.h" #include "draw/draw_context.h" #include "draw/draw_private.h" #include "draw/draw_pt.h" #include "translate/translate.h" #include "translate/translate_cache.h" struct pt_fetch { struct draw_context *draw; struct translate *translate; unsigned vertex_size; struct translate_cache *cache; }; /** * Perform the fetch from API vertex elements & vertex buffers, to a * contiguous set of float[4] attributes as required for the * vertex_shader->run_linear() method. * * This is used in all cases except pure passthrough * (draw_pt_fetch_emit.c) which has its own version to translate * directly to hw vertices. * */ void draw_pt_fetch_prepare(struct pt_fetch *fetch, unsigned vs_input_count, unsigned vertex_size, unsigned instance_id_index) { struct draw_context *draw = fetch->draw; unsigned nr_inputs; unsigned i, nr = 0, ei = 0; unsigned dst_offset = 0; unsigned num_extra_inputs = 0; struct translate_key key; fetch->vertex_size = vertex_size; /* Leave the clipmask/edgeflags/pad/vertex_id untouched */ dst_offset += 1 * sizeof(float); /* Just leave the clip[] and pre_clip_pos[] array untouched. */ dst_offset += 8 * sizeof(float); if (instance_id_index != ~0) { num_extra_inputs++; } assert(draw->pt.nr_vertex_elements + num_extra_inputs >= vs_input_count); nr_inputs = MIN2(vs_input_count, draw->pt.nr_vertex_elements + num_extra_inputs); for (i = 0; i < nr_inputs; i++) { if (i == instance_id_index) { key.element[nr].type = TRANSLATE_ELEMENT_INSTANCE_ID; key.element[nr].input_format = PIPE_FORMAT_R32_USCALED; key.element[nr].output_format = PIPE_FORMAT_R32_USCALED; key.element[nr].output_offset = dst_offset; dst_offset += sizeof(uint); } else if (util_format_is_pure_sint(draw->pt.vertex_element[i].src_format)) { key.element[nr].type = TRANSLATE_ELEMENT_NORMAL; key.element[nr].input_format = draw->pt.vertex_element[ei].src_format; key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index; key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset; key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor; key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_SINT; key.element[nr].output_offset = dst_offset; ei++; dst_offset += 4 * sizeof(int); } else if (util_format_is_pure_uint(draw->pt.vertex_element[i].src_format)) { key.element[nr].type = TRANSLATE_ELEMENT_NORMAL; key.element[nr].input_format = draw->pt.vertex_element[ei].src_format; key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index; key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset; key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor; key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_UINT; key.element[nr].output_offset = dst_offset; ei++; dst_offset += 4 * sizeof(unsigned); } else { key.element[nr].type = TRANSLATE_ELEMENT_NORMAL; key.element[nr].input_format = draw->pt.vertex_element[ei].src_format; key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index; key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset; key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor; key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_FLOAT; key.element[nr].output_offset = dst_offset; ei++; dst_offset += 4 * sizeof(float); } nr++; } assert(dst_offset <= vertex_size); key.nr_elements = nr; key.output_stride = vertex_size; if (!fetch->translate || translate_key_compare(&fetch->translate->key, &key) != 0) { translate_key_sanitize(&key); fetch->translate = translate_cache_find(fetch->cache, &key); } } void draw_pt_fetch_run(struct pt_fetch *fetch, const unsigned *elts, unsigned count, char *verts) { struct draw_context *draw = fetch->draw; struct translate *translate = fetch->translate; unsigned i; for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { translate->set_buffer(translate, i, ((char *)draw->pt.user.vbuffer[i] + draw->pt.vertex_buffer[i].buffer_offset), draw->pt.vertex_buffer[i].stride, draw->pt.max_index); } translate->run_elts( translate, elts, count, draw->instance_id, verts ); } void draw_pt_fetch_run_linear(struct pt_fetch *fetch, unsigned start, unsigned count, char *verts) { struct draw_context *draw = fetch->draw; struct translate *translate = fetch->translate; unsigned i; for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { translate->set_buffer(translate, i, ((char *)draw->pt.user.vbuffer[i] + draw->pt.vertex_buffer[i].buffer_offset), draw->pt.vertex_buffer[i].stride, draw->pt.max_index); } translate->run( translate, start, count, draw->instance_id, verts ); } struct pt_fetch * draw_pt_fetch_create(struct draw_context *draw) { struct pt_fetch *fetch = CALLOC_STRUCT(pt_fetch); if (!fetch) return NULL; fetch->draw = draw; fetch->cache = translate_cache_create(); if (!fetch->cache) { FREE(fetch); return NULL; } return fetch; } void draw_pt_fetch_destroy(struct pt_fetch *fetch) { if (fetch->cache) translate_cache_destroy(fetch->cache); FREE(fetch); }
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