src/gallium/state_trackers/xa/xa_context.c

   1 /**********************************************************
   2  * Copyright 2009-2011 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  * Authors:
  26  * Zack Rusin <zackr-at-vmware-dot-com>
  27  * Thomas Hellstrom <thellstrom-at-vmware-dot-com>
  28  */
  29 #include "xa_context.h"
  30 #include "xa_priv.h"
  31 #include "cso_cache/cso_context.h"
  32 #include "util/u_inlines.h"
  33 #include "util/u_rect.h"
  34 #include "util/u_surface.h"
  35 #include "pipe/p_context.h"
  36
  37
  38 struct xa_context *
  39 xa_context_default(struct xa_tracker *xa)
  40 {
  41     return xa->default_ctx;
  42 }
  43
  44 struct xa_context *
  45 xa_context_create(struct xa_tracker *xa)
  46 {
  47     struct xa_context *ctx = calloc(1, sizeof(*ctx));
  48
  49     ctx->xa = xa;
  50     ctx->pipe = xa->screen->context_create(xa->screen, NULL);
  51     ctx->cso = cso_create_context(ctx->pipe);
  52     ctx->shaders = xa_shaders_create(ctx);
  53     renderer_init_state(ctx);
  54
  55     return ctx;
  56 }
  57
  58 void
  59 xa_context_destroy(struct xa_context *r)
  60 {
  61     struct pipe_resource **vsbuf = &r->vs_const_buffer;
  62     struct pipe_resource **fsbuf = &r->fs_const_buffer;
  63
  64     if (*vsbuf)
  65         pipe_resource_reference(vsbuf, NULL);
  66
  67     if (*fsbuf)
  68         pipe_resource_reference(fsbuf, NULL);
  69
  70     if (r->shaders) {
  71         xa_shaders_destroy(r->shaders);
  72         r->shaders = NULL;
  73     }
  74
  75     if (r->cso) {
  76         cso_release_all(r->cso);
  77         cso_destroy_context(r->cso);
  78         r->cso = NULL;
  79     }
  80 }
  81
  82 int
  83 xa_surface_dma(struct xa_context *ctx,
  84                struct xa_surface *srf,
  85                void *data,
  86                unsigned int pitch,
  87                int to_surface, struct xa_box *boxes, unsigned int num_boxes)
  88 {
  89     struct pipe_transfer *transfer;
  90     void *map;
  91     int w, h, i;
  92     enum pipe_transfer_usage transfer_direction;
  93     struct pipe_context *pipe = ctx->pipe;
  94
  95     transfer_direction = (to_surface ? PIPE_TRANSFER_WRITE :
  96                           PIPE_TRANSFER_READ);
  97
  98     for (i = 0; i < num_boxes; ++i, ++boxes) {
  99         w = boxes->x2 - boxes->x1;
 100         h = boxes->y2 - boxes->y1;
 101
 102         transfer = pipe_get_transfer(pipe, srf->tex, 0, 0,
 103                                      transfer_direction, boxes->x1, boxes->y1,
 104                                      w, h);
 105         if (!transfer)
 106             return -XA_ERR_NORES;
 107
 108         map = pipe_transfer_map(ctx->pipe, transfer);
 109         if (!map)
 110             goto out_no_map;
 111
 112         if (to_surface) {
 113             util_copy_rect(map, srf->tex->format, transfer->stride,
 114                            0, 0, w, h, data, pitch, boxes->x1, boxes->y1);
 115         } else {
 116             util_copy_rect(data, srf->tex->format, pitch,
 117                            boxes->x1, boxes->y1, w, h, map, transfer->stride, 0,
 118                            0);
 119         }
 120         pipe->transfer_unmap(pipe, transfer);
 121         pipe->transfer_destroy(pipe, transfer);
 122         if (to_surface)
 123             pipe->flush(pipe, &ctx->last_fence);
 124     }
 125     return XA_ERR_NONE;
 126  out_no_map:
 127     pipe->transfer_destroy(pipe, transfer);
 128     return -XA_ERR_NORES;
 129 }
 130
 131 void *
 132 xa_surface_map(struct xa_context *ctx,
 133                struct xa_surface *srf, unsigned int usage)
 134 {
 135     void *map;
 136     unsigned int transfer_direction = 0;
 137     struct pipe_context *pipe = ctx->pipe;
 138
 139     if (srf->transfer)
 140         return NULL;
 141
 142     if (usage & XA_MAP_READ)
 143         transfer_direction = PIPE_TRANSFER_READ;
 144     if (usage & XA_MAP_WRITE)
 145         transfer_direction = PIPE_TRANSFER_WRITE;
 146
 147     if (!transfer_direction)
 148         return NULL;
 149
 150     srf->transfer = pipe_get_transfer(pipe, srf->tex, 0, 0,
 151                                       transfer_direction, 0, 0,
 152                                       srf->tex->width0, srf->tex->height0);
 153     if (!srf->transfer)
 154         return NULL;
 155
 156     map = pipe_transfer_map(pipe, srf->transfer);
 157     if (!map)
 158         pipe->transfer_destroy(pipe, srf->transfer);
 159
 160     srf->mapping_pipe = pipe;
 161     return map;
 162 }
 163
 164 void
 165 xa_surface_unmap(struct xa_surface *srf)
 166 {
 167     if (srf->transfer) {
 168         struct pipe_context *pipe = srf->mapping_pipe;
 169
 170         pipe->transfer_unmap(pipe, srf->transfer);
 171         pipe->transfer_destroy(pipe, srf->transfer);
 172         srf->transfer = NULL;
 173     }
 174 }
 175
 176 int
 177 xa_copy_prepare(struct xa_context *ctx,
 178                 struct xa_surface *dst, struct xa_surface *src)
 179 {
 180     if (src == dst || dst->srf != NULL)
 181         return -XA_ERR_INVAL;
 182
 183     if (src->tex->format != dst->tex->format) {
 184         struct pipe_screen *screen = ctx->pipe->screen;
 185         struct pipe_surface srf_templ;
 186
 187         if (!screen->is_format_supported(screen,  dst->tex->format,
 188                                          PIPE_TEXTURE_2D, 0,
 189                                          PIPE_BIND_RENDER_TARGET))
 190             return -XA_ERR_INVAL;
 191         u_surface_default_template(&srf_templ, dst->tex,
 192                                    PIPE_BIND_RENDER_TARGET);
 193         dst->srf = ctx->pipe->create_surface(ctx->pipe, dst->tex, &srf_templ);
 194         if (!dst->srf)
 195             return -XA_ERR_NORES;
 196
 197         renderer_copy_prepare(ctx, dst->srf, src->tex);
 198         ctx->simple_copy = 0;
 199     } else
 200         ctx->simple_copy = 1;
 201
 202     ctx->src = src;
 203     ctx->dst = dst;
 204
 205     return 0;
 206 }
 207
 208 void
 209 xa_copy(struct xa_context *ctx,
 210         int dx, int dy, int sx, int sy, int width, int height)
 211 {
 212     struct pipe_box src_box;
 213
 214     if (ctx->simple_copy) {
 215         u_box_2d(sx, sy, width, height, &src_box);
 216         ctx->pipe->resource_copy_region(ctx->pipe,
 217                                         ctx->dst->tex, 0, dx, dy, 0,
 218                                         ctx->src->tex,
 219                                         0, &src_box);
 220     } else
 221         renderer_copy(ctx, dx, dy, sx, sy, width, height,
 222                       (float) width, (float) height);
 223 }
 224
 225 void
 226 xa_copy_done(struct xa_context *ctx)
 227 {
 228     if (!ctx->simple_copy) {
 229            renderer_draw_flush(ctx);
 230            ctx->pipe->flush(ctx->pipe, &ctx->last_fence);
 231            pipe_surface_reference(&ctx->dst->srf, NULL);
 232     } else
 233         ctx->pipe->flush(ctx->pipe, &ctx->last_fence);
 234 }
 235
 236 struct xa_fence *
 237 xa_fence_get(struct xa_context *ctx)
 238 {
 239     struct xa_fence *fence = malloc(sizeof(*fence));
 240     struct pipe_screen *screen = ctx->xa->screen;
 241
 242     if (!fence)
 243         return NULL;
 244
 245     fence->xa = ctx->xa;
 246
 247     if (ctx->last_fence == NULL)
 248         fence->pipe_fence = NULL;
 249     else
 250         screen->fence_reference(screen, &fence->pipe_fence, ctx->last_fence);
 251
 252     return fence;
 253 }
 254
 255 int
 256 xa_fence_wait(struct xa_fence *fence, uint64_t timeout)
 257 {
 258     if (!fence)
 259         return XA_ERR_NONE;
 260
 261     if (fence->pipe_fence) {
 262         struct pipe_screen *screen = fence->xa->screen;
 263         boolean timed_out;
 264
 265         timed_out = !screen->fence_finish(screen, fence->pipe_fence, timeout);
 266         if (timed_out)
 267             return -XA_ERR_BUSY;
 268
 269         screen->fence_reference(screen, &fence->pipe_fence, NULL);
 270     }
 271     return XA_ERR_NONE;
 272 }
 273
 274 void
 275 xa_fence_destroy(struct xa_fence *fence)
 276 {
 277     if (!fence)
 278         return;
 279
 280     if (fence->pipe_fence) {
 281         struct pipe_screen *screen = fence->xa->screen;
 282
 283         screen->fence_reference(screen, &fence->pipe_fence, NULL);
 284     }
 285
 286     free(fence);
 287 }