| /************************************************************************** |
| * |
| * Copyright 2007 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. |
| * |
| **************************************************************************/ |
| |
| /* Author: |
| * Brian Paul |
| * Keith Whitwell |
| */ |
| |
| |
| #include "pipe/p_defines.h" |
| #include "pipe/p_context.h" |
| #include "util/u_inlines.h" |
| #include "util/u_prim.h" |
| |
| #include "sp_context.h" |
| #include "sp_query.h" |
| #include "sp_state.h" |
| #include "sp_texture.h" |
| |
| #include "draw/draw_context.h" |
| |
| /** |
| * This function handles drawing indexed and non-indexed prims, |
| * instanced and non-instanced drawing, with or without min/max element |
| * indexes. |
| * All the other drawing functions are expressed in terms of this |
| * function. |
| * |
| * For non-indexed prims, indexBuffer should be NULL. |
| * For non-instanced drawing, instanceCount should be 1. |
| * When the min/max element indexes aren't known, minIndex should be 0 |
| * and maxIndex should be ~0. |
| */ |
| void |
| softpipe_draw_vbo(struct pipe_context *pipe, |
| const struct pipe_draw_info *info) |
| { |
| struct softpipe_context *sp = softpipe_context(pipe); |
| struct draw_context *draw = sp->draw; |
| const void *mapped_indices = NULL; |
| unsigned i; |
| |
| if (!softpipe_check_render_cond(sp)) |
| return; |
| |
| sp->reduced_api_prim = u_reduced_prim(info->mode); |
| |
| if (sp->dirty) { |
| softpipe_update_derived(sp, sp->reduced_api_prim); |
| } |
| |
| softpipe_map_transfers(sp); |
| |
| /* Map vertex buffers */ |
| for (i = 0; i < sp->num_vertex_buffers; i++) { |
| const void *buf = sp->vertex_buffer[i].user_buffer; |
| if (!buf) |
| buf = softpipe_resource(sp->vertex_buffer[i].buffer)->data; |
| draw_set_mapped_vertex_buffer(draw, i, buf); |
| } |
| |
| /* Map index buffer, if present */ |
| if (info->indexed) { |
| mapped_indices = sp->index_buffer.user_buffer; |
| if (!mapped_indices) |
| mapped_indices = softpipe_resource(sp->index_buffer.buffer)->data; |
| |
| draw_set_indexes(draw, |
| (ubyte *) mapped_indices + sp->index_buffer.offset, |
| sp->index_buffer.index_size); |
| } |
| |
| |
| for (i = 0; i < sp->num_so_targets; i++) { |
| void *buf = softpipe_resource(sp->so_targets[i]->target.buffer)->data; |
| sp->so_targets[i]->mapping = buf; |
| } |
| |
| draw_set_mapped_so_targets(draw, sp->num_so_targets, |
| sp->so_targets); |
| |
| /* draw! */ |
| draw_vbo(draw, info); |
| |
| /* unmap vertex/index buffers - will cause draw module to flush */ |
| for (i = 0; i < sp->num_vertex_buffers; i++) { |
| draw_set_mapped_vertex_buffer(draw, i, NULL); |
| } |
| if (mapped_indices) { |
| draw_set_indexes(draw, NULL, 0); |
| } |
| |
| draw_set_mapped_so_targets(draw, 0, NULL); |
| |
| /* |
| * TODO: Flush only when a user vertex/index buffer is present |
| * (or even better, modify draw module to do this |
| * internally when this condition is seen?) |
| */ |
| draw_flush(draw); |
| |
| /* Note: leave drawing surfaces mapped */ |
| sp->dirty_render_cache = TRUE; |
| } |