231 lines
7.3 KiB
C
231 lines
7.3 KiB
C
/**************************************************************************
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*
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* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "util/u_memory.h"
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#include "util/u_math.h"
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#include "util/u_format.h"
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#include "draw/draw_context.h"
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#include "draw/draw_private.h"
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#include "draw/draw_pt.h"
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#include "translate/translate.h"
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#include "translate/translate_cache.h"
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struct pt_fetch {
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struct draw_context *draw;
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struct translate *translate;
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unsigned vertex_size;
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struct translate_cache *cache;
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};
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/**
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* Perform the fetch from API vertex elements & vertex buffers, to a
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* contiguous set of float[4] attributes as required for the
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* vertex_shader->run_linear() method.
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*
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* This is used in all cases except pure passthrough
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* (draw_pt_fetch_emit.c) which has its own version to translate
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* directly to hw vertices.
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*
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*/
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void
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draw_pt_fetch_prepare(struct pt_fetch *fetch,
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unsigned vs_input_count,
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unsigned vertex_size,
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unsigned instance_id_index)
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{
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struct draw_context *draw = fetch->draw;
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unsigned nr_inputs;
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unsigned i, nr = 0, ei = 0;
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unsigned dst_offset = 0;
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unsigned num_extra_inputs = 0;
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struct translate_key key;
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fetch->vertex_size = vertex_size;
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/* Leave the clipmask/edgeflags/pad/vertex_id untouched
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*/
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dst_offset += 1 * sizeof(float);
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/* Just leave the clip[] and pre_clip_pos[] array untouched.
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*/
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dst_offset += 8 * sizeof(float);
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if (instance_id_index != ~0) {
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num_extra_inputs++;
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}
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assert(draw->pt.nr_vertex_elements + num_extra_inputs >= vs_input_count);
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nr_inputs = MIN2(vs_input_count, draw->pt.nr_vertex_elements + num_extra_inputs);
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for (i = 0; i < nr_inputs; i++) {
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if (i == instance_id_index) {
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key.element[nr].type = TRANSLATE_ELEMENT_INSTANCE_ID;
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key.element[nr].input_format = PIPE_FORMAT_R32_USCALED;
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key.element[nr].output_format = PIPE_FORMAT_R32_USCALED;
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key.element[nr].output_offset = dst_offset;
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dst_offset += sizeof(uint);
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} else if (util_format_is_pure_sint(draw->pt.vertex_element[i].src_format)) {
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key.element[nr].type = TRANSLATE_ELEMENT_NORMAL;
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key.element[nr].input_format = draw->pt.vertex_element[ei].src_format;
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key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index;
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key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset;
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key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor;
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key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_SINT;
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key.element[nr].output_offset = dst_offset;
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ei++;
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dst_offset += 4 * sizeof(int);
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} else if (util_format_is_pure_uint(draw->pt.vertex_element[i].src_format)) {
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key.element[nr].type = TRANSLATE_ELEMENT_NORMAL;
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key.element[nr].input_format = draw->pt.vertex_element[ei].src_format;
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key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index;
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key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset;
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key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor;
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key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_UINT;
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key.element[nr].output_offset = dst_offset;
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ei++;
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dst_offset += 4 * sizeof(unsigned);
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} else {
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key.element[nr].type = TRANSLATE_ELEMENT_NORMAL;
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key.element[nr].input_format = draw->pt.vertex_element[ei].src_format;
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key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index;
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key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset;
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key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor;
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key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
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key.element[nr].output_offset = dst_offset;
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ei++;
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dst_offset += 4 * sizeof(float);
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}
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nr++;
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}
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assert(dst_offset <= vertex_size);
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key.nr_elements = nr;
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key.output_stride = vertex_size;
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if (!fetch->translate ||
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translate_key_compare(&fetch->translate->key, &key) != 0)
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{
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translate_key_sanitize(&key);
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fetch->translate = translate_cache_find(fetch->cache, &key);
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}
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}
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void
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draw_pt_fetch_run(struct pt_fetch *fetch,
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const unsigned *elts,
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unsigned count,
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char *verts)
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{
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struct draw_context *draw = fetch->draw;
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struct translate *translate = fetch->translate;
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unsigned i;
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for (i = 0; i < draw->pt.nr_vertex_buffers; i++) {
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translate->set_buffer(translate,
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i,
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((char *)draw->pt.user.vbuffer[i].map +
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draw->pt.vertex_buffer[i].buffer_offset),
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draw->pt.vertex_buffer[i].stride,
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draw->pt.max_index);
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}
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translate->run_elts( translate,
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elts,
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count,
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draw->start_instance,
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draw->instance_id,
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verts );
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}
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void
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draw_pt_fetch_run_linear(struct pt_fetch *fetch,
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unsigned start,
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unsigned count,
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char *verts)
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{
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struct draw_context *draw = fetch->draw;
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struct translate *translate = fetch->translate;
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unsigned i;
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for (i = 0; i < draw->pt.nr_vertex_buffers; i++) {
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translate->set_buffer(translate,
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i,
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((char *)draw->pt.user.vbuffer[i].map +
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draw->pt.vertex_buffer[i].buffer_offset),
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draw->pt.vertex_buffer[i].stride,
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draw->pt.max_index);
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}
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translate->run( translate,
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start,
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count,
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draw->start_instance,
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draw->instance_id,
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verts );
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}
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struct pt_fetch *
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draw_pt_fetch_create(struct draw_context *draw)
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{
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struct pt_fetch *fetch = CALLOC_STRUCT(pt_fetch);
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if (!fetch)
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return NULL;
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fetch->draw = draw;
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fetch->cache = translate_cache_create();
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if (!fetch->cache) {
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FREE(fetch);
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return NULL;
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}
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return fetch;
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}
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void
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draw_pt_fetch_destroy(struct pt_fetch *fetch)
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{
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if (fetch->cache)
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translate_cache_destroy(fetch->cache);
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FREE(fetch);
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}
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