1 /************************************************************************** 2 * 3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 /* Authors: Keith Whitwell <keith (at) tungstengraphics.com> 29 */ 30 31 32 #include "lp_context.h" 33 #include "lp_state.h" 34 35 #include "draw/draw_context.h" 36 #include "util/u_inlines.h" 37 #include "util/u_transfer.h" 38 39 40 static void * 41 llvmpipe_create_vertex_elements_state(struct pipe_context *pipe, 42 unsigned count, 43 const struct pipe_vertex_element *attribs) 44 { 45 struct lp_velems_state *velems; 46 assert(count <= PIPE_MAX_ATTRIBS); 47 velems = (struct lp_velems_state *) MALLOC(sizeof(struct lp_velems_state)); 48 if (velems) { 49 velems->count = count; 50 memcpy(velems->velem, attribs, sizeof(*attribs) * count); 51 } 52 return velems; 53 } 54 55 static void 56 llvmpipe_bind_vertex_elements_state(struct pipe_context *pipe, 57 void *velems) 58 { 59 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe); 60 struct lp_velems_state *lp_velems = (struct lp_velems_state *) velems; 61 62 llvmpipe->velems = lp_velems; 63 64 llvmpipe->dirty |= LP_NEW_VERTEX; 65 66 if (velems) 67 draw_set_vertex_elements(llvmpipe->draw, lp_velems->count, lp_velems->velem); 68 } 69 70 static void 71 llvmpipe_delete_vertex_elements_state(struct pipe_context *pipe, void *velems) 72 { 73 FREE( velems ); 74 } 75 76 static void 77 llvmpipe_set_vertex_buffers(struct pipe_context *pipe, 78 unsigned count, 79 const struct pipe_vertex_buffer *buffers) 80 { 81 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe); 82 83 assert(count <= PIPE_MAX_ATTRIBS); 84 85 util_copy_vertex_buffers(llvmpipe->vertex_buffer, 86 &llvmpipe->num_vertex_buffers, 87 buffers, count); 88 89 llvmpipe->dirty |= LP_NEW_VERTEX; 90 91 draw_set_vertex_buffers(llvmpipe->draw, count, buffers); 92 } 93 94 95 static void 96 llvmpipe_set_index_buffer(struct pipe_context *pipe, 97 const struct pipe_index_buffer *ib) 98 { 99 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe); 100 101 if (ib) 102 memcpy(&llvmpipe->index_buffer, ib, sizeof(llvmpipe->index_buffer)); 103 else 104 memset(&llvmpipe->index_buffer, 0, sizeof(llvmpipe->index_buffer)); 105 } 106 107 void 108 llvmpipe_init_vertex_funcs(struct llvmpipe_context *llvmpipe) 109 { 110 llvmpipe->pipe.create_vertex_elements_state = llvmpipe_create_vertex_elements_state; 111 llvmpipe->pipe.bind_vertex_elements_state = llvmpipe_bind_vertex_elements_state; 112 llvmpipe->pipe.delete_vertex_elements_state = llvmpipe_delete_vertex_elements_state; 113 114 llvmpipe->pipe.set_vertex_buffers = llvmpipe_set_vertex_buffers; 115 llvmpipe->pipe.set_index_buffer = llvmpipe_set_index_buffer; 116 } 117