| /********************************************************** |
| * Copyright 2008-2009 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, sublicense, 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 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 |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * 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_inlines.h" |
| #include "pipe/p_defines.h" |
| #include "util/u_math.h" |
| #include "util/u_memory.h" |
| #include "util/u_transfer.h" |
| #include "tgsi/tgsi_parse.h" |
| |
| #include "svga_screen.h" |
| #include "svga_resource_buffer.h" |
| #include "svga_context.h" |
| |
| |
| static void svga_set_vertex_buffers(struct pipe_context *pipe, |
| unsigned count, |
| const struct pipe_vertex_buffer *buffers) |
| { |
| struct svga_context *svga = svga_context(pipe); |
| unsigned i; |
| boolean any_user_buffer = FALSE; |
| |
| /* Check for no change */ |
| if (count == svga->curr.num_vertex_buffers && |
| memcmp(svga->curr.vb, buffers, count * sizeof buffers[0]) == 0) |
| return; |
| |
| /* Adjust refcounts */ |
| for (i = 0; i < count; i++) { |
| pipe_resource_reference(&svga->curr.vb[i].buffer, buffers[i].buffer); |
| if (svga_buffer_is_user_buffer(buffers[i].buffer)) |
| any_user_buffer = TRUE; |
| } |
| |
| for ( ; i < svga->curr.num_vertex_buffers; i++) |
| pipe_resource_reference(&svga->curr.vb[i].buffer, NULL); |
| |
| /* Copy remaining data */ |
| memcpy(svga->curr.vb, buffers, count * sizeof buffers[0]); |
| svga->curr.num_vertex_buffers = count; |
| svga->curr.any_user_vertex_buffers = any_user_buffer; |
| |
| svga->dirty |= SVGA_NEW_VBUFFER; |
| } |
| |
| |
| static void svga_set_index_buffer(struct pipe_context *pipe, |
| const struct pipe_index_buffer *ib) |
| { |
| struct svga_context *svga = svga_context(pipe); |
| |
| if (ib) { |
| pipe_resource_reference(&svga->curr.ib.buffer, ib->buffer); |
| memcpy(&svga->curr.ib, ib, sizeof(svga->curr.ib)); |
| } |
| else { |
| pipe_resource_reference(&svga->curr.ib.buffer, NULL); |
| memset(&svga->curr.ib, 0, sizeof(svga->curr.ib)); |
| } |
| |
| /* TODO make this more like a state */ |
| } |
| |
| |
| static void * |
| svga_create_vertex_elements_state(struct pipe_context *pipe, |
| unsigned count, |
| const struct pipe_vertex_element *attribs) |
| { |
| struct svga_velems_state *velems; |
| assert(count <= PIPE_MAX_ATTRIBS); |
| velems = (struct svga_velems_state *) MALLOC(sizeof(struct svga_velems_state)); |
| if (velems) { |
| velems->count = count; |
| memcpy(velems->velem, attribs, sizeof(*attribs) * count); |
| } |
| return velems; |
| } |
| |
| static void svga_bind_vertex_elements_state(struct pipe_context *pipe, |
| void *velems) |
| { |
| struct svga_context *svga = svga_context(pipe); |
| struct svga_velems_state *svga_velems = (struct svga_velems_state *) velems; |
| |
| svga->curr.velems = svga_velems; |
| svga->dirty |= SVGA_NEW_VELEMENT; |
| } |
| |
| static void svga_delete_vertex_elements_state(struct pipe_context *pipe, |
| void *velems) |
| { |
| FREE(velems); |
| } |
| |
| void svga_cleanup_vertex_state( struct svga_context *svga ) |
| { |
| unsigned i; |
| |
| for (i = 0 ; i < svga->curr.num_vertex_buffers; i++) |
| pipe_resource_reference(&svga->curr.vb[i].buffer, NULL); |
| } |
| |
| |
| void svga_init_vertex_functions( struct svga_context *svga ) |
| { |
| svga->pipe.set_vertex_buffers = svga_set_vertex_buffers; |
| svga->pipe.set_index_buffer = svga_set_index_buffer; |
| svga->pipe.create_vertex_elements_state = svga_create_vertex_elements_state; |
| svga->pipe.bind_vertex_elements_state = svga_bind_vertex_elements_state; |
| svga->pipe.delete_vertex_elements_state = svga_delete_vertex_elements_state; |
| } |
| |
| |