1 /********************************************************** 2 * Copyright 2008-2009 VMware, Inc. All rights reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person 5 * obtaining a copy of this software and associated documentation 6 * files (the "Software"), to deal in the Software without 7 * restriction, including without limitation the rights to use, copy, 8 * modify, merge, publish, distribute, sublicense, and/or sell copies 9 * of the Software, and to permit persons to whom the Software is 10 * furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 * 24 **********************************************************/ 25 26 #include "draw/draw_context.h" 27 #include "draw/draw_vbuf.h" 28 #include "util/u_inlines.h" 29 #include "pipe/p_state.h" 30 31 #include "svga_context.h" 32 #include "svga_screen.h" 33 #include "svga_swtnl.h" 34 #include "svga_state.h" 35 #include "svga_swtnl_private.h" 36 37 38 39 enum pipe_error 40 svga_swtnl_draw_vbo(struct svga_context *svga, 41 const struct pipe_draw_info *info) 42 { 43 struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = { 0 }; 44 struct pipe_transfer *ib_transfer = NULL; 45 struct pipe_transfer *cb_transfer[SVGA_MAX_CONST_BUFS] = { 0 }; 46 struct draw_context *draw = svga->swtnl.draw; 47 MAYBE_UNUSED unsigned old_num_vertex_buffers; 48 unsigned i; 49 const void *map; 50 enum pipe_error ret; 51 52 SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_SWTNLDRAWVBO); 53 54 assert(!svga->dirty); 55 assert(svga->state.sw.need_swtnl); 56 assert(draw); 57 58 /* Make sure that the need_swtnl flag does not go away */ 59 svga->state.sw.in_swtnl_draw = TRUE; 60 61 ret = svga_update_state(svga, SVGA_STATE_SWTNL_DRAW); 62 if (ret != PIPE_OK) { 63 svga_context_flush(svga, NULL); 64 ret = svga_update_state(svga, SVGA_STATE_SWTNL_DRAW); 65 svga->swtnl.new_vbuf = TRUE; 66 assert(ret == PIPE_OK); 67 } 68 69 /* 70 * Map vertex buffers 71 */ 72 for (i = 0; i < svga->curr.num_vertex_buffers; i++) { 73 if (svga->curr.vb[i].buffer) { 74 map = pipe_buffer_map(&svga->pipe, 75 svga->curr.vb[i].buffer, 76 PIPE_TRANSFER_READ, 77 &vb_transfer[i]); 78 79 draw_set_mapped_vertex_buffer(draw, i, map, ~0); 80 } 81 } 82 old_num_vertex_buffers = svga->curr.num_vertex_buffers; 83 84 /* Map index buffer, if present */ 85 map = NULL; 86 if (info->indexed && svga->curr.ib.buffer) { 87 map = pipe_buffer_map(&svga->pipe, svga->curr.ib.buffer, 88 PIPE_TRANSFER_READ, 89 &ib_transfer); 90 draw_set_indexes(draw, 91 (const ubyte *) map + svga->curr.ib.offset, 92 svga->curr.ib.index_size, ~0); 93 } 94 95 /* Map constant buffers */ 96 for (i = 0; i < ARRAY_SIZE(svga->curr.constbufs[PIPE_SHADER_VERTEX]); ++i) { 97 if (svga->curr.constbufs[PIPE_SHADER_VERTEX][i].buffer == NULL) { 98 continue; 99 } 100 101 map = pipe_buffer_map(&svga->pipe, 102 svga->curr.constbufs[PIPE_SHADER_VERTEX][i].buffer, 103 PIPE_TRANSFER_READ, 104 &cb_transfer[i]); 105 assert(map); 106 draw_set_mapped_constant_buffer( 107 draw, PIPE_SHADER_VERTEX, i, 108 map, 109 svga->curr.constbufs[PIPE_SHADER_VERTEX][i].buffer->width0); 110 } 111 112 draw_vbo(draw, info); 113 114 draw_flush(svga->swtnl.draw); 115 116 /* Ensure the draw module didn't touch this */ 117 assert(old_num_vertex_buffers == svga->curr.num_vertex_buffers); 118 119 /* 120 * unmap vertex/index buffers 121 */ 122 for (i = 0; i < svga->curr.num_vertex_buffers; i++) { 123 if (svga->curr.vb[i].buffer) { 124 pipe_buffer_unmap(&svga->pipe, vb_transfer[i]); 125 draw_set_mapped_vertex_buffer(draw, i, NULL, 0); 126 } 127 } 128 129 if (ib_transfer) { 130 pipe_buffer_unmap(&svga->pipe, ib_transfer); 131 draw_set_indexes(draw, NULL, 0, 0); 132 } 133 134 for (i = 0; i < ARRAY_SIZE(svga->curr.constbufs[PIPE_SHADER_VERTEX]); ++i) { 135 if (svga->curr.constbufs[PIPE_SHADER_VERTEX][i].buffer) { 136 pipe_buffer_unmap(&svga->pipe, cb_transfer[i]); 137 } 138 } 139 140 /* Now safe to remove the need_swtnl flag in any update_state call */ 141 svga->state.sw.in_swtnl_draw = FALSE; 142 svga->dirty |= SVGA_NEW_NEED_PIPELINE | SVGA_NEW_NEED_SWVFETCH; 143 144 SVGA_STATS_TIME_POP(svga_sws(svga)); 145 return ret; 146 } 147 148 149 150 151 boolean svga_init_swtnl( struct svga_context *svga ) 152 { 153 struct svga_screen *screen = svga_screen(svga->pipe.screen); 154 155 svga->swtnl.backend = svga_vbuf_render_create(svga); 156 if(!svga->swtnl.backend) 157 goto fail; 158 159 /* 160 * Create drawing context and plug our rendering stage into it. 161 */ 162 svga->swtnl.draw = draw_create(&svga->pipe); 163 if (svga->swtnl.draw == NULL) 164 goto fail; 165 166 167 draw_set_rasterize_stage(svga->swtnl.draw, 168 draw_vbuf_stage( svga->swtnl.draw, svga->swtnl.backend )); 169 170 draw_set_render(svga->swtnl.draw, svga->swtnl.backend); 171 172 svga->blitter = util_blitter_create(&svga->pipe); 173 if (!svga->blitter) 174 goto fail; 175 176 /* must be done before installing Draw stages */ 177 util_blitter_cache_all_shaders(svga->blitter); 178 179 if (!screen->haveLineSmooth) 180 draw_install_aaline_stage(svga->swtnl.draw, &svga->pipe); 181 182 /* enable/disable line stipple stage depending on device caps */ 183 draw_enable_line_stipple(svga->swtnl.draw, !screen->haveLineStipple); 184 185 /* always install AA point stage */ 186 draw_install_aapoint_stage(svga->swtnl.draw, &svga->pipe); 187 188 /* Set wide line threshold above device limit (so we'll never really use it) 189 */ 190 draw_wide_line_threshold(svga->swtnl.draw, 191 MAX2(screen->maxLineWidth, 192 screen->maxLineWidthAA)); 193 194 if (debug_get_bool_option("SVGA_SWTNL_FSE", FALSE)) 195 draw_set_driver_clipping(svga->swtnl.draw, TRUE, TRUE, TRUE, FALSE); 196 197 return TRUE; 198 199 fail: 200 if (svga->blitter) 201 util_blitter_destroy(svga->blitter); 202 203 if (svga->swtnl.backend) 204 svga->swtnl.backend->destroy( svga->swtnl.backend ); 205 206 if (svga->swtnl.draw) 207 draw_destroy( svga->swtnl.draw ); 208 209 return FALSE; 210 } 211 212 213 void svga_destroy_swtnl( struct svga_context *svga ) 214 { 215 draw_destroy( svga->swtnl.draw ); 216 } 217
