draw_pt_fetch.c revision 7400bc4b6fb0c20a935cd108afa92814eeafec6d
1a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell/************************************************************************** 2a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * 3a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. 4a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * All Rights Reserved. 5a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * 6a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * Permission is hereby granted, free of charge, to any person obtaining a 7a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * copy of this software and associated documentation files (the 8a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * "Software"), to deal in the Software without restriction, including 9a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * without limitation the rights to use, copy, modify, merge, publish, 10a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * distribute, sub license, and/or sell copies of the Software, and to 11a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * permit persons to whom the Software is furnished to do so, subject to 12a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * the following conditions: 13a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * 14a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * The above copyright notice and this permission notice (including the 15a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * next paragraph) shall be included in all copies or substantial portions 16a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * of the Software. 17a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * 18a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * 26a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell **************************************************************************/ 27a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 28a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell#include "pipe/p_util.h" 29a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell#include "draw/draw_context.h" 30a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell#include "draw/draw_private.h" 31a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell#include "draw/draw_vbuf.h" 32a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell#include "draw/draw_vertex.h" 33a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell#include "draw/draw_pt.h" 34a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell#include "translate/translate.h" 35a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 36a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 37a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwellstruct pt_fetch { 38a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell struct draw_context *draw; 39a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 40a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell struct translate *translate; 41a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 42a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell unsigned vertex_size; 43a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell}; 44a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 45a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 46a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 47a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell/* Perform the fetch from API vertex elements & vertex buffers, to a 48a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * contiguous set of float[4] attributes as required for the 49a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * vertex_shader->run_linear() method. 50a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * 51a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * This is used in all cases except pure passthrough 52a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * (draw_pt_fetch_emit.c) which has its own version to translate 53a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * directly to hw vertices. 54a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * 55a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell */ 56a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwellvoid draw_pt_fetch_prepare( struct pt_fetch *fetch, 57a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell boolean emit_header, 58a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell unsigned vertex_size ) 59a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell{ 60a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell struct draw_context *draw = fetch->draw; 61a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell unsigned i, nr = 0; 62a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell unsigned dst_offset = 0; 63a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell struct translate_key key; 64a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 65a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell fetch->vertex_size = vertex_size; 66a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 67a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell memset(&key, 0, sizeof(key)); 68a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 69a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell /* If PT_SHADE is not set, then we are creating post-shader 70a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * vertices, meaning that we need to emit/leave space for a vertex 71a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * header. 72a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * 73a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * It's worth considering whether the vertex headers should contain 74a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * a pointer to the 'data', rather than having it inline. 75a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * Something to look at after we've fully switched over to the pt 76a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell * paths. 77a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell */ 78a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell if (emit_header) 79a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell { 80a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell /* Need to set header->vertex_id = 0xffff somehow. 81a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell */ 82a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell key.element[nr].input_format = PIPE_FORMAT_R32_FLOAT; 83a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell key.element[nr].input_buffer = draw->nr_vertex_buffers; 84a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell key.element[nr].input_offset = 0; 85a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell key.element[nr].output_format = PIPE_FORMAT_R32_FLOAT; 86a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell key.element[nr].output_offset = dst_offset; 87a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell dst_offset += 1 * sizeof(float); 88a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell nr++; 89a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 90a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 91a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell /* Just leave the clip[] array untouched. 92a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell */ 93a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell dst_offset += 4 * sizeof(float); 94a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell } 95a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 96a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 97a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell for (i = 0; i < draw->nr_vertex_elements; i++) { 98a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell key.element[nr].input_format = draw->vertex_element[i].src_format; 99a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell key.element[nr].input_buffer = draw->vertex_element[i].vertex_buffer_index; 100a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell key.element[nr].input_offset = draw->vertex_element[i].src_offset; 101a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_FLOAT; 102a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell key.element[nr].output_offset = dst_offset; 103a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 104a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell dst_offset += 4 * sizeof(float); 105a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell nr++; 106a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell } 107a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 108a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell assert(dst_offset <= vertex_size); 109a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 110a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell key.nr_elements = nr; 111a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell key.output_stride = vertex_size; 112a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 113a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 114a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell /* Don't bother with caching at this stage: 115a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell */ 116a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell if (!fetch->translate || 117a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell memcmp(&fetch->translate->key, &key, sizeof(key)) != 0) 118a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell { 119a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell if (fetch->translate) 120a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell fetch->translate->release(fetch->translate); 121a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 1227400bc4b6fb0c20a935cd108afa92814eeafec6dKeith Whitwell fetch->translate = translate_create( &key ); 123a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 124a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell if (emit_header) { 125a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell static struct vertex_header vh = { 0, 0, 0, 0xffff }; 126a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell fetch->translate->set_buffer(fetch->translate, 127a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell draw->nr_vertex_buffers, 128a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell &vh, 129a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 0); 130a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell } 131a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell } 132a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell} 133a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 134a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 135a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 136a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 137a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwellvoid draw_pt_fetch_run( struct pt_fetch *fetch, 138a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell const unsigned *elts, 139a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell unsigned count, 140a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell char *verts ) 141a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell{ 142a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell struct draw_context *draw = fetch->draw; 143a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell struct translate *translate = fetch->translate; 144a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell unsigned i; 145a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 146a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell for (i = 0; i < draw->nr_vertex_buffers; i++) { 147a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell translate->set_buffer(translate, 148a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell i, 149a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell ((char *)draw->user.vbuffer[i] + 150a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell draw->vertex_buffer[i].buffer_offset), 151a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell draw->vertex_buffer[i].pitch ); 152a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell } 153a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 154a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell translate->run_elts( translate, 155a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell elts, 156a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell count, 157a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell verts ); 158a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell} 159a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 160a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 161a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwellstruct pt_fetch *draw_pt_fetch_create( struct draw_context *draw ) 162a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell{ 163a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell struct pt_fetch *fetch = CALLOC_STRUCT(pt_fetch); 164a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell if (!fetch) 165a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell return NULL; 166a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 167a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell fetch->draw = draw; 168a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell return fetch; 169a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell} 170a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 171a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwellvoid draw_pt_fetch_destroy( struct pt_fetch *fetch ) 172a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell{ 173a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell FREE(fetch); 174a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell} 175a773f06e969a3992451dd7fe6fd55ea96b2774faKeith Whitwell 176