r300_transfer.c revision 60a053510155c119a6927bf7114e597066f8c50a
1/* 2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> 3 * Copyright 2010 Marek Olšák <maraeo@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_context.h" 25#include "r300_transfer.h" 26#include "r300_texture.h" 27#include "r300_screen.h" 28 29#include "r300_winsys.h" 30 31#include "util/u_memory.h" 32#include "util/u_format.h" 33 34struct r300_transfer { 35 /* Parent class */ 36 struct pipe_transfer transfer; 37 38 /* Offset from start of buffer. */ 39 unsigned offset; 40 41 /* Detiled texture. */ 42 struct r300_texture *detiled_texture; 43 44 /* Transfer and format flags. */ 45 unsigned render_target_usage; 46}; 47 48/* Convenience cast wrapper. */ 49static INLINE struct r300_transfer* 50r300_transfer(struct pipe_transfer* transfer) 51{ 52 return (struct r300_transfer*)transfer; 53} 54 55/* Copy from a tiled texture to a detiled one. */ 56static void r300_copy_from_tiled_texture(struct pipe_context *ctx, 57 struct r300_transfer *r300transfer) 58{ 59 struct pipe_screen *screen = ctx->screen; 60 struct pipe_transfer *transfer = (struct pipe_transfer*)r300transfer; 61 struct pipe_resource *tex = transfer->resource; 62 struct pipe_surface *src, *dst; 63 64 src = screen->get_tex_surface(screen, tex, 65 transfer->sr.face, 66 transfer->sr.level, 67 transfer->box.z, 68 PIPE_BIND_BLIT_SOURCE); 69 70 dst = screen->get_tex_surface(screen, &r300transfer->detiled_texture->b.b, 71 0, 0, 0, 72 PIPE_BIND_BLIT_DESTINATION); 73 74 ctx->surface_copy(ctx, dst, 0, 0, src, 75 transfer->box.x, transfer->box.y, 76 transfer->box.width, transfer->box.height); 77 78 pipe_surface_reference(&src, NULL); 79 pipe_surface_reference(&dst, NULL); 80} 81 82/* Copy a detiled texture to a tiled one. */ 83static void r300_copy_into_tiled_texture(struct pipe_context *ctx, 84 struct r300_transfer *r300transfer) 85{ 86 struct pipe_screen *screen = ctx->screen; 87 struct pipe_transfer *transfer = (struct pipe_transfer*)r300transfer; 88 struct pipe_resource *tex = transfer->resource; 89 struct pipe_surface *src, *dst; 90 91 src = screen->get_tex_surface(screen, &r300transfer->detiled_texture->b.b, 92 0, 0, 0, 93 PIPE_BIND_BLIT_SOURCE); 94 95 dst = screen->get_tex_surface(screen, tex, 96 transfer->sr.face, 97 transfer->sr.level, 98 transfer->box.z, 99 PIPE_BIND_BLIT_DESTINATION); 100 101 /* XXX this flush prevents the following DRM error from occuring: 102 * [drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation ! 103 * Reproducible with perf/copytex. */ 104 ctx->flush(ctx, 0, NULL); 105 106 ctx->surface_copy(ctx, dst, 107 transfer->box.x, transfer->box.y, 108 src, 0, 0, 109 transfer->box.width, transfer->box.height); 110 111 /* XXX this flush fixes a few piglit tests (e.g. glean/pixelFormats). */ 112 ctx->flush(ctx, 0, NULL); 113 114 pipe_surface_reference(&src, NULL); 115 pipe_surface_reference(&dst, NULL); 116} 117 118struct pipe_transfer* 119r300_texture_get_transfer(struct pipe_context *ctx, 120 struct pipe_resource *texture, 121 struct pipe_subresource sr, 122 unsigned usage, 123 const struct pipe_box *box) 124{ 125 struct r300_texture *tex = r300_texture(texture); 126 struct r300_screen *r300screen = r300_screen(ctx->screen); 127 struct r300_transfer *trans; 128 struct pipe_resource base; 129 130 /* XXX Why aren't flushes taken care of by winsys automatically? 131 * Winsys seems to sometimes return a cached buffer instead of 132 * a mapped hardware buffer if this flush is commented out. */ 133 if (ctx->is_resource_referenced(ctx, texture, sr.face, sr.level)) 134 ctx->flush(ctx, PIPE_FLUSH_RENDER_CACHE, NULL); 135 136 trans = CALLOC_STRUCT(r300_transfer); 137 if (trans) { 138 /* Initialize the transfer object. */ 139 pipe_resource_reference(&trans->transfer.resource, texture); 140 trans->transfer.sr = sr; 141 trans->transfer.usage = usage; 142 trans->transfer.box = *box; 143 144 /* If the texture is tiled, we must create a temporary detiled texture 145 * for this transfer. */ 146 if (tex->microtile || tex->macrotile) { 147 trans->render_target_usage = 148 util_format_is_depth_or_stencil(texture->format) ? 149 PIPE_BIND_DEPTH_STENCIL : 150 PIPE_BIND_RENDER_TARGET; 151 152 base.target = PIPE_TEXTURE_2D; 153 base.format = texture->format; 154 base.width0 = box->width; 155 base.height0 = box->height; 156 base.depth0 = 0; 157 base.last_level = 0; 158 base.nr_samples = 0; 159 base.usage = PIPE_USAGE_DYNAMIC; 160 base.bind = 0; 161 base.flags = R300_RESOURCE_FLAG_TRANSFER; 162 163 /* For texture reading, the temporary (detiled) texture is used as 164 * a render target when blitting from a tiled texture. */ 165 if (usage & PIPE_TRANSFER_READ) { 166 base.bind |= trans->render_target_usage; 167 } 168 /* For texture writing, the temporary texture is used as a sampler 169 * when blitting into a tiled texture. */ 170 if (usage & PIPE_TRANSFER_WRITE) { 171 base.bind |= PIPE_BIND_SAMPLER_VIEW; 172 } 173 174 /* Create the temporary texture. */ 175 trans->detiled_texture = r300_texture( 176 ctx->screen->resource_create(ctx->screen, 177 &base)); 178 179 assert(!trans->detiled_texture->microtile && 180 !trans->detiled_texture->macrotile); 181 182 /* Set the stride. 183 * 184 * Even though we are using an internal texture for this, 185 * the transfer sr, box and usage parameters still reflect 186 * the arguments received to get_transfer. We just do the 187 * right thing internally. 188 */ 189 trans->transfer.stride = 190 r300_texture_get_stride(r300screen, trans->detiled_texture, 0); 191 192 if (usage & PIPE_TRANSFER_READ) { 193 /* We cannot map a tiled texture directly because the data is 194 * in a different order, therefore we do detiling using a blit. */ 195 r300_copy_from_tiled_texture(ctx, trans); 196 } 197 } else { 198 trans->transfer.stride = 199 r300_texture_get_stride(r300screen, tex, sr.level); 200 trans->offset = r300_texture_get_offset(tex, sr.level, box->z, sr.face); 201 } 202 } 203 return &trans->transfer; 204} 205 206void r300_texture_transfer_destroy(struct pipe_context *ctx, 207 struct pipe_transfer *trans) 208{ 209 struct r300_transfer *r300transfer = r300_transfer(trans); 210 211 if (r300transfer->detiled_texture) { 212 if (trans->usage & PIPE_TRANSFER_WRITE) { 213 r300_copy_into_tiled_texture(ctx, r300transfer); 214 } 215 216 pipe_resource_reference( 217 (struct pipe_resource**)&r300transfer->detiled_texture, NULL); 218 } 219 pipe_resource_reference(&trans->resource, NULL); 220 FREE(trans); 221} 222 223void* r300_texture_transfer_map(struct pipe_context *ctx, 224 struct pipe_transfer *transfer) 225{ 226 struct r300_winsys_screen *rws = (struct r300_winsys_screen *)ctx->winsys; 227 struct r300_transfer *r300transfer = r300_transfer(transfer); 228 struct r300_texture *tex = r300_texture(transfer->resource); 229 char *map; 230 enum pipe_format format = tex->b.b.format; 231 232 if (r300transfer->detiled_texture) { 233 /* The detiled texture is of the same size as the region being mapped 234 * (no offset needed). */ 235 return rws->buffer_map(rws, 236 r300transfer->detiled_texture->buffer, 237 transfer->usage); 238 } else { 239 /* Tiling is disabled. */ 240 map = rws->buffer_map(rws, tex->buffer, 241 transfer->usage); 242 243 if (!map) { 244 return NULL; 245 } 246 247 return map + r300_transfer(transfer)->offset + 248 transfer->box.y / util_format_get_blockheight(format) * transfer->stride + 249 transfer->box.x / util_format_get_blockwidth(format) * util_format_get_blocksize(format); 250 } 251} 252 253void r300_texture_transfer_unmap(struct pipe_context *ctx, 254 struct pipe_transfer *transfer) 255{ 256 struct r300_winsys_screen *rws = (struct r300_winsys_screen *)ctx->winsys; 257 struct r300_transfer *r300transfer = r300_transfer(transfer); 258 struct r300_texture *tex = r300_texture(transfer->resource); 259 260 if (r300transfer->detiled_texture) { 261 rws->buffer_unmap(rws, r300transfer->detiled_texture->buffer); 262 } else { 263 rws->buffer_unmap(rws, tex->buffer); 264 } 265} 266 267