r300_screen_buffer.c revision 7b42ed6eb508e2f0b89f66f3f985ef1d76a0ef91
1/* 2 * Copyright 2010 Red Hat Inc. 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 * Authors: Dave Airlie 24 */ 25 26#include <stdio.h> 27 28#include "util/u_inlines.h" 29#include "util/u_memory.h" 30#include "util/u_upload_mgr.h" 31#include "util/u_math.h" 32 33#include "r300_screen_buffer.h" 34 35void r300_upload_index_buffer(struct r300_context *r300, 36 struct pipe_resource **index_buffer, 37 unsigned index_size, unsigned *start, 38 unsigned count, uint8_t *ptr) 39{ 40 unsigned index_offset; 41 boolean flushed; 42 43 *index_buffer = NULL; 44 45 u_upload_data(r300->vbuf_mgr->uploader, 46 0, count * index_size, 47 ptr + (*start * index_size), 48 &index_offset, 49 index_buffer, &flushed); 50 51 *start = index_offset / index_size; 52} 53 54static void r300_buffer_destroy(struct pipe_screen *screen, 55 struct pipe_resource *buf) 56{ 57 struct r300_screen *r300screen = r300_screen(screen); 58 struct r300_resource *rbuf = r300_resource(buf); 59 60 if (rbuf->constant_buffer) 61 FREE(rbuf->constant_buffer); 62 63 if (rbuf->buf) 64 pb_reference(&rbuf->buf, NULL); 65 66 util_slab_free(&r300screen->pool_buffers, rbuf); 67} 68 69static struct pipe_transfer* 70r300_buffer_get_transfer(struct pipe_context *context, 71 struct pipe_resource *resource, 72 unsigned level, 73 unsigned usage, 74 const struct pipe_box *box) 75{ 76 struct r300_context *r300 = r300_context(context); 77 struct pipe_transfer *transfer = 78 util_slab_alloc(&r300->pool_transfers); 79 80 transfer->resource = resource; 81 transfer->level = level; 82 transfer->usage = usage; 83 transfer->box = *box; 84 transfer->stride = 0; 85 transfer->layer_stride = 0; 86 transfer->data = NULL; 87 88 /* Note strides are zero, this is ok for buffers, but not for 89 * textures 2d & higher at least. 90 */ 91 return transfer; 92} 93 94static void r300_buffer_transfer_destroy(struct pipe_context *pipe, 95 struct pipe_transfer *transfer) 96{ 97 struct r300_context *r300 = r300_context(pipe); 98 util_slab_free(&r300->pool_transfers, transfer); 99} 100 101static void * 102r300_buffer_transfer_map( struct pipe_context *pipe, 103 struct pipe_transfer *transfer ) 104{ 105 struct r300_context *r300 = r300_context(pipe); 106 struct r300_screen *r300screen = r300_screen(pipe->screen); 107 struct radeon_winsys *rws = r300screen->rws; 108 struct r300_resource *rbuf = r300_resource(transfer->resource); 109 uint8_t *map; 110 111 if (rbuf->b.user_ptr) 112 return (uint8_t *) rbuf->b.user_ptr + transfer->box.x; 113 if (rbuf->constant_buffer) 114 return (uint8_t *) rbuf->constant_buffer + transfer->box.x; 115 116 map = rws->buffer_map(rbuf->buf, r300->cs, transfer->usage); 117 118 if (map == NULL) 119 return NULL; 120 121 return map + transfer->box.x; 122} 123 124static void r300_buffer_transfer_unmap( struct pipe_context *pipe, 125 struct pipe_transfer *transfer ) 126{ 127 struct r300_screen *r300screen = r300_screen(pipe->screen); 128 struct radeon_winsys *rws = r300screen->rws; 129 struct r300_resource *rbuf = r300_resource(transfer->resource); 130 131 if (rbuf->buf) { 132 rws->buffer_unmap(rbuf->buf); 133 } 134} 135 136static void r300_buffer_transfer_inline_write(struct pipe_context *pipe, 137 struct pipe_resource *resource, 138 unsigned level, 139 unsigned usage, 140 const struct pipe_box *box, 141 const void *data, 142 unsigned stride, 143 unsigned layer_stride) 144{ 145 struct r300_context *r300 = r300_context(pipe); 146 struct radeon_winsys *rws = r300->screen->rws; 147 struct r300_resource *rbuf = r300_resource(resource); 148 uint8_t *map = NULL; 149 150 if (rbuf->constant_buffer) { 151 memcpy(rbuf->constant_buffer + box->x, data, box->width); 152 return; 153 } 154 assert(rbuf->b.user_ptr == NULL); 155 156 map = rws->buffer_map(rbuf->buf, r300->cs, 157 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD | usage); 158 159 memcpy(map + box->x, data, box->width); 160 161 rws->buffer_unmap(rbuf->buf); 162} 163 164static const struct u_resource_vtbl r300_buffer_vtbl = 165{ 166 NULL, /* get_handle */ 167 r300_buffer_destroy, /* resource_destroy */ 168 r300_buffer_get_transfer, /* get_transfer */ 169 r300_buffer_transfer_destroy, /* transfer_destroy */ 170 r300_buffer_transfer_map, /* transfer_map */ 171 NULL, /* transfer_flush_region */ 172 r300_buffer_transfer_unmap, /* transfer_unmap */ 173 r300_buffer_transfer_inline_write /* transfer_inline_write */ 174}; 175 176struct pipe_resource *r300_buffer_create(struct pipe_screen *screen, 177 const struct pipe_resource *templ) 178{ 179 struct r300_screen *r300screen = r300_screen(screen); 180 struct r300_resource *rbuf; 181 unsigned alignment = 16; 182 183 rbuf = util_slab_alloc(&r300screen->pool_buffers); 184 185 rbuf->b.b.b = *templ; 186 rbuf->b.b.vtbl = &r300_buffer_vtbl; 187 pipe_reference_init(&rbuf->b.b.b.reference, 1); 188 rbuf->b.b.b.screen = screen; 189 rbuf->b.user_ptr = NULL; 190 rbuf->domain = RADEON_DOMAIN_GTT; 191 rbuf->buf = NULL; 192 rbuf->constant_buffer = NULL; 193 194 /* Alloc constant buffers in RAM. */ 195 if (templ->bind & PIPE_BIND_CONSTANT_BUFFER) { 196 rbuf->constant_buffer = MALLOC(templ->width0); 197 return &rbuf->b.b.b; 198 } 199 200 rbuf->buf = 201 r300screen->rws->buffer_create(r300screen->rws, 202 rbuf->b.b.b.width0, alignment, 203 rbuf->b.b.b.bind, rbuf->domain); 204 if (!rbuf->buf) { 205 util_slab_free(&r300screen->pool_buffers, rbuf); 206 return NULL; 207 } 208 209 rbuf->cs_buf = 210 r300screen->rws->buffer_get_cs_handle(rbuf->buf); 211 212 return &rbuf->b.b.b; 213} 214 215struct pipe_resource *r300_user_buffer_create(struct pipe_screen *screen, 216 void *ptr, unsigned size, 217 unsigned bind) 218{ 219 struct r300_screen *r300screen = r300_screen(screen); 220 struct r300_resource *rbuf; 221 222 rbuf = util_slab_alloc(&r300screen->pool_buffers); 223 224 pipe_reference_init(&rbuf->b.b.b.reference, 1); 225 rbuf->b.b.b.screen = screen; 226 rbuf->b.b.b.target = PIPE_BUFFER; 227 rbuf->b.b.b.format = PIPE_FORMAT_R8_UNORM; 228 rbuf->b.b.b.usage = PIPE_USAGE_IMMUTABLE; 229 rbuf->b.b.b.bind = bind; 230 rbuf->b.b.b.width0 = ~0; 231 rbuf->b.b.b.height0 = 1; 232 rbuf->b.b.b.depth0 = 1; 233 rbuf->b.b.b.array_size = 1; 234 rbuf->b.b.b.flags = 0; 235 rbuf->b.b.vtbl = &r300_buffer_vtbl; 236 rbuf->b.user_ptr = ptr; 237 rbuf->domain = RADEON_DOMAIN_GTT; 238 rbuf->buf = NULL; 239 rbuf->constant_buffer = NULL; 240 return &rbuf->b.b.b; 241} 242