1 /* 2 * Copyright 2009 Corbin Simpson <MostAwesomeDude (at) gmail.com> 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * on the rights to use, copy, modify, merge, publish, distribute, sub 8 * license, and/or sell copies of the Software, and to permit persons to whom 9 * the Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */ 22 23 #include "util/u_memory.h" 24 #include "util/u_simple_list.h" 25 26 #include "r300_context.h" 27 #include "r300_screen.h" 28 #include "r300_emit.h" 29 30 #include <stdio.h> 31 32 static struct pipe_query *r300_create_query(struct pipe_context *pipe, 33 unsigned query_type) 34 { 35 struct r300_context *r300 = r300_context(pipe); 36 struct r300_screen *r300screen = r300->screen; 37 struct r300_query *q; 38 39 if (query_type != PIPE_QUERY_OCCLUSION_COUNTER && 40 query_type != PIPE_QUERY_OCCLUSION_PREDICATE && 41 query_type != PIPE_QUERY_GPU_FINISHED) { 42 return NULL; 43 } 44 45 q = CALLOC_STRUCT(r300_query); 46 if (!q) 47 return NULL; 48 49 q->type = query_type; 50 51 if (query_type == PIPE_QUERY_GPU_FINISHED) { 52 return (struct pipe_query*)q; 53 } 54 55 if (r300screen->caps.family == CHIP_FAMILY_RV530) 56 q->num_pipes = r300screen->info.r300_num_z_pipes; 57 else 58 q->num_pipes = r300screen->info.r300_num_gb_pipes; 59 60 q->buf = r300->rws->buffer_create(r300->rws, 4096, 4096, 61 PIPE_BIND_CUSTOM, RADEON_DOMAIN_GTT); 62 if (!q->buf) { 63 FREE(q); 64 return NULL; 65 } 66 q->cs_buf = r300->rws->buffer_get_cs_handle(q->buf); 67 68 return (struct pipe_query*)q; 69 } 70 71 static void r300_destroy_query(struct pipe_context* pipe, 72 struct pipe_query* query) 73 { 74 struct r300_query* q = r300_query(query); 75 76 pb_reference(&q->buf, NULL); 77 FREE(query); 78 } 79 80 void r300_resume_query(struct r300_context *r300, 81 struct r300_query *query) 82 { 83 r300->query_current = query; 84 r300_mark_atom_dirty(r300, &r300->query_start); 85 } 86 87 static void r300_begin_query(struct pipe_context* pipe, 88 struct pipe_query* query) 89 { 90 struct r300_context* r300 = r300_context(pipe); 91 struct r300_query* q = r300_query(query); 92 93 if (q->type == PIPE_QUERY_GPU_FINISHED) 94 return; 95 96 if (r300->query_current != NULL) { 97 fprintf(stderr, "r300: begin_query: " 98 "Some other query has already been started.\n"); 99 assert(0); 100 return; 101 } 102 103 q->num_results = 0; 104 r300_resume_query(r300, q); 105 } 106 107 void r300_stop_query(struct r300_context *r300) 108 { 109 r300_emit_query_end(r300); 110 r300->query_current = NULL; 111 } 112 113 static void r300_end_query(struct pipe_context* pipe, 114 struct pipe_query* query) 115 { 116 struct r300_context* r300 = r300_context(pipe); 117 struct r300_query *q = r300_query(query); 118 119 if (q->type == PIPE_QUERY_GPU_FINISHED) { 120 pb_reference(&q->buf, NULL); 121 r300_flush(pipe, RADEON_FLUSH_ASYNC, 122 (struct pipe_fence_handle**)&q->buf); 123 return; 124 } 125 126 if (q != r300->query_current) { 127 fprintf(stderr, "r300: end_query: Got invalid query.\n"); 128 assert(0); 129 return; 130 } 131 132 r300_stop_query(r300); 133 } 134 135 static boolean r300_get_query_result(struct pipe_context* pipe, 136 struct pipe_query* query, 137 boolean wait, 138 union pipe_query_result *vresult) 139 { 140 struct r300_context* r300 = r300_context(pipe); 141 struct r300_query *q = r300_query(query); 142 unsigned i; 143 uint32_t temp, *map; 144 145 if (q->type == PIPE_QUERY_GPU_FINISHED) { 146 if (wait) { 147 r300->rws->buffer_wait(q->buf, RADEON_USAGE_READWRITE); 148 vresult->b = TRUE; 149 } else { 150 vresult->b = !r300->rws->buffer_is_busy(q->buf, RADEON_USAGE_READWRITE); 151 } 152 return vresult->b; 153 } 154 155 map = r300->rws->buffer_map(q->cs_buf, r300->cs, 156 PIPE_TRANSFER_READ | 157 (!wait ? PIPE_TRANSFER_DONTBLOCK : 0)); 158 if (!map) 159 return FALSE; 160 161 /* Sum up the results. */ 162 temp = 0; 163 for (i = 0; i < q->num_results; i++) { 164 /* Convert little endian values written by GPU to CPU byte order */ 165 temp += util_le32_to_cpu(*map); 166 map++; 167 } 168 169 r300->rws->buffer_unmap(q->cs_buf); 170 171 if (q->type == PIPE_QUERY_OCCLUSION_PREDICATE) { 172 vresult->b = temp != 0; 173 } else { 174 vresult->u64 = temp; 175 } 176 return TRUE; 177 } 178 179 static void r300_render_condition(struct pipe_context *pipe, 180 struct pipe_query *query, 181 uint mode) 182 { 183 struct r300_context *r300 = r300_context(pipe); 184 union pipe_query_result result; 185 boolean wait; 186 187 r300->skip_rendering = FALSE; 188 189 if (query) { 190 wait = mode == PIPE_RENDER_COND_WAIT || 191 mode == PIPE_RENDER_COND_BY_REGION_WAIT; 192 193 if (r300_get_query_result(pipe, query, wait, &result)) { 194 if (r300_query(query)->type == PIPE_QUERY_OCCLUSION_PREDICATE) { 195 r300->skip_rendering = !result.b; 196 } else { 197 r300->skip_rendering = !result.u64; 198 } 199 } 200 } 201 } 202 203 void r300_init_query_functions(struct r300_context* r300) 204 { 205 r300->context.create_query = r300_create_query; 206 r300->context.destroy_query = r300_destroy_query; 207 r300->context.begin_query = r300_begin_query; 208 r300->context.end_query = r300_end_query; 209 r300->context.get_query_result = r300_get_query_result; 210 r300->context.render_condition = r300_render_condition; 211 } 212
