1 /* 2 * Copyright 2008 Corbin Simpson <MostAwesomeDude (at) gmail.com> 3 * Copyright 2010 Marek Olk <maraeo (at) gmail.com> 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * on the rights to use, copy, modify, merge, publish, distribute, sub 9 * license, and/or sell copies of the Software, and to permit persons to whom 10 * the Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the next 13 * paragraph) shall be included in all copies or substantial portions of the 14 * Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 22 * USE OR OTHER DEALINGS IN THE SOFTWARE. */ 23 24 #include "r300_transfer.h" 25 #include "r300_texture_desc.h" 26 #include "r300_screen_buffer.h" 27 28 #include "util/u_memory.h" 29 #include "util/u_format.h" 30 #include "util/u_box.h" 31 32 struct r300_transfer { 33 /* Parent class */ 34 struct pipe_transfer transfer; 35 36 /* Offset from start of buffer. */ 37 unsigned offset; 38 39 /* Linear texture. */ 40 struct r300_resource *linear_texture; 41 }; 42 43 /* Convenience cast wrapper. */ 44 static INLINE struct r300_transfer* 45 r300_transfer(struct pipe_transfer* transfer) 46 { 47 return (struct r300_transfer*)transfer; 48 } 49 50 /* Copy from a tiled texture to a detiled one. */ 51 static void r300_copy_from_tiled_texture(struct pipe_context *ctx, 52 struct r300_transfer *r300transfer) 53 { 54 struct pipe_transfer *transfer = (struct pipe_transfer*)r300transfer; 55 struct pipe_resource *tex = transfer->resource; 56 57 ctx->resource_copy_region(ctx, &r300transfer->linear_texture->b.b, 0, 58 0, 0, 0, 59 tex, transfer->level, &transfer->box); 60 } 61 62 /* Copy a detiled texture to a tiled one. */ 63 static void r300_copy_into_tiled_texture(struct pipe_context *ctx, 64 struct r300_transfer *r300transfer) 65 { 66 struct pipe_transfer *transfer = (struct pipe_transfer*)r300transfer; 67 struct pipe_resource *tex = transfer->resource; 68 struct pipe_box src_box; 69 u_box_origin_2d(transfer->box.width, transfer->box.height, &src_box); 70 71 ctx->resource_copy_region(ctx, tex, transfer->level, 72 transfer->box.x, transfer->box.y, transfer->box.z, 73 &r300transfer->linear_texture->b.b, 0, &src_box); 74 75 /* XXX remove this. */ 76 r300_flush(ctx, 0, NULL); 77 } 78 79 struct pipe_transfer* 80 r300_texture_get_transfer(struct pipe_context *ctx, 81 struct pipe_resource *texture, 82 unsigned level, 83 unsigned usage, 84 const struct pipe_box *box) 85 { 86 struct r300_context *r300 = r300_context(ctx); 87 struct r300_resource *tex = r300_resource(texture); 88 struct r300_transfer *trans; 89 struct pipe_resource base; 90 boolean referenced_cs, referenced_hw; 91 92 referenced_cs = 93 r300->rws->cs_is_buffer_referenced(r300->cs, tex->cs_buf, RADEON_USAGE_READWRITE); 94 if (referenced_cs) { 95 referenced_hw = TRUE; 96 } else { 97 referenced_hw = 98 r300->rws->buffer_is_busy(tex->buf, RADEON_USAGE_READWRITE); 99 } 100 101 trans = CALLOC_STRUCT(r300_transfer); 102 if (trans) { 103 /* Initialize the transfer object. */ 104 pipe_resource_reference(&trans->transfer.resource, texture); 105 trans->transfer.level = level; 106 trans->transfer.usage = usage; 107 trans->transfer.box = *box; 108 109 /* If the texture is tiled, we must create a temporary detiled texture 110 * for this transfer. 111 * Also make write transfers pipelined. */ 112 if (tex->tex.microtile || tex->tex.macrotile[level] || 113 (referenced_hw && !(usage & PIPE_TRANSFER_READ) && 114 r300_is_blit_supported(texture->format))) { 115 if (r300->blitter->running) { 116 fprintf(stderr, "r300: ERROR: Blitter recursion in texture_get_transfer.\n"); 117 os_break(); 118 } 119 120 base.target = PIPE_TEXTURE_2D; 121 base.format = texture->format; 122 base.width0 = box->width; 123 base.height0 = box->height; 124 base.depth0 = 1; 125 base.array_size = 1; 126 base.last_level = 0; 127 base.nr_samples = 0; 128 base.usage = PIPE_USAGE_STAGING; 129 base.bind = 0; 130 if (usage & PIPE_TRANSFER_READ) { 131 base.bind |= PIPE_BIND_SAMPLER_VIEW; 132 } 133 if (usage & PIPE_TRANSFER_WRITE) { 134 base.bind |= PIPE_BIND_RENDER_TARGET; 135 } 136 base.flags = R300_RESOURCE_FLAG_TRANSFER; 137 138 /* For texture reading, the temporary (detiled) texture is used as 139 * a render target when blitting from a tiled texture. */ 140 if (usage & PIPE_TRANSFER_READ) { 141 base.bind |= PIPE_BIND_RENDER_TARGET; 142 } 143 /* For texture writing, the temporary texture is used as a sampler 144 * when blitting into a tiled texture. */ 145 if (usage & PIPE_TRANSFER_WRITE) { 146 base.bind |= PIPE_BIND_SAMPLER_VIEW; 147 } 148 149 /* Create the temporary texture. */ 150 trans->linear_texture = r300_resource( 151 ctx->screen->resource_create(ctx->screen, 152 &base)); 153 154 if (!trans->linear_texture) { 155 /* Oh crap, the thing can't create the texture. 156 * Let's flush and try again. */ 157 r300_flush(ctx, 0, NULL); 158 159 trans->linear_texture = r300_resource( 160 ctx->screen->resource_create(ctx->screen, 161 &base)); 162 163 if (!trans->linear_texture) { 164 /* For linear textures, it's safe to fallback to 165 * an unpipelined transfer. */ 166 if (!tex->tex.microtile && !tex->tex.macrotile[level]) { 167 goto unpipelined; 168 } 169 170 /* Otherwise, go to hell. */ 171 fprintf(stderr, 172 "r300: Failed to create a transfer object, praise.\n"); 173 FREE(trans); 174 return NULL; 175 } 176 } 177 178 assert(!trans->linear_texture->tex.microtile && 179 !trans->linear_texture->tex.macrotile[0]); 180 181 /* Set the stride. */ 182 trans->transfer.stride = 183 trans->linear_texture->tex.stride_in_bytes[0]; 184 185 if (usage & PIPE_TRANSFER_READ) { 186 /* We cannot map a tiled texture directly because the data is 187 * in a different order, therefore we do detiling using a blit. */ 188 r300_copy_from_tiled_texture(ctx, trans); 189 190 /* Always referenced in the blit. */ 191 r300_flush(ctx, 0, NULL); 192 } 193 return &trans->transfer; 194 } 195 196 unpipelined: 197 /* Unpipelined transfer. */ 198 trans->transfer.stride = tex->tex.stride_in_bytes[level]; 199 trans->offset = r300_texture_get_offset(tex, level, box->z); 200 201 if (referenced_cs && 202 !(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) 203 r300_flush(ctx, 0, NULL); 204 return &trans->transfer; 205 } 206 return NULL; 207 } 208 209 void r300_texture_transfer_destroy(struct pipe_context *ctx, 210 struct pipe_transfer *trans) 211 { 212 struct r300_transfer *r300transfer = r300_transfer(trans); 213 214 if (r300transfer->linear_texture) { 215 if (trans->usage & PIPE_TRANSFER_WRITE) { 216 r300_copy_into_tiled_texture(ctx, r300transfer); 217 } 218 219 pipe_resource_reference( 220 (struct pipe_resource**)&r300transfer->linear_texture, NULL); 221 } 222 pipe_resource_reference(&trans->resource, NULL); 223 FREE(trans); 224 } 225 226 void* r300_texture_transfer_map(struct pipe_context *ctx, 227 struct pipe_transfer *transfer) 228 { 229 struct r300_context *r300 = r300_context(ctx); 230 struct r300_transfer *r300transfer = r300_transfer(transfer); 231 struct r300_resource *tex = r300_resource(transfer->resource); 232 char *map; 233 enum pipe_format format = tex->b.b.format; 234 235 if (r300transfer->linear_texture) { 236 /* The detiled texture is of the same size as the region being mapped 237 * (no offset needed). */ 238 return r300->rws->buffer_map(r300transfer->linear_texture->cs_buf, 239 r300->cs, transfer->usage); 240 } else { 241 /* Tiling is disabled. */ 242 map = r300->rws->buffer_map(tex->cs_buf, r300->cs, transfer->usage); 243 244 if (!map) { 245 return NULL; 246 } 247 248 return map + r300_transfer(transfer)->offset + 249 transfer->box.y / util_format_get_blockheight(format) * transfer->stride + 250 transfer->box.x / util_format_get_blockwidth(format) * util_format_get_blocksize(format); 251 } 252 } 253 254 void r300_texture_transfer_unmap(struct pipe_context *ctx, 255 struct pipe_transfer *transfer) 256 { 257 struct radeon_winsys *rws = r300_context(ctx)->rws; 258 struct r300_transfer *r300transfer = r300_transfer(transfer); 259 struct r300_resource *tex = r300_resource(transfer->resource); 260 261 if (r300transfer->linear_texture) { 262 rws->buffer_unmap(r300transfer->linear_texture->cs_buf); 263 } else { 264 rws->buffer_unmap(tex->cs_buf); 265 } 266 } 267
