src/gallium/frontends/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 XA_EXPORT void
  38 xa_context_flush(struct xa_context *ctx)
  39 {
  40     if (ctx->last_fence) {
  41         struct pipe_screen *screen = ctx->xa->screen;
  42         screen->fence_reference(screen, &ctx->last_fence, NULL);
  43     }
  44     ctx->pipe->flush(ctx->pipe, &ctx->last_fence, 0);
  45 }
  46
  47 XA_EXPORT struct xa_context *
  48 xa_context_default(struct xa_tracker *xa)
  49 {
  50     return xa->default_ctx;
  51 }
  52
  53 XA_EXPORT struct xa_context *
  54 xa_context_create(struct xa_tracker *xa)
  55 {
  56     struct xa_context *ctx = calloc(1, sizeof(*ctx));
  57
  58     ctx->xa = xa;
  59     ctx->pipe = xa->screen->context_create(xa->screen, NULL, 0);
  60     ctx->cso = cso_create_context(ctx->pipe, 0);
  61     ctx->shaders = xa_shaders_create(ctx);
  62     renderer_init_state(ctx);
  63
  64     return ctx;
  65 }
  66
  67 XA_EXPORT void
  68 xa_context_destroy(struct xa_context *r)
  69 {
  70     struct pipe_resource **vsbuf = &r->vs_const_buffer;
  71     struct pipe_resource **fsbuf = &r->fs_const_buffer;
  72
  73     if (*vsbuf)
  74         pipe_resource_reference(vsbuf, NULL);
  75
  76     if (*fsbuf)
  77         pipe_resource_reference(fsbuf, NULL);
  78
  79     if (r->shaders) {
  80         xa_shaders_destroy(r->shaders);
  81         r->shaders = NULL;
  82     }
  83
  84     xa_ctx_sampler_views_destroy(r);
  85     if (r->srf)
  86         pipe_surface_reference(&r->srf, NULL);
  87
  88     if (r->cso) {
  89         cso_destroy_context(r->cso);
  90         r->cso = NULL;
  91     }
  92
  93     r->pipe->destroy(r->pipe);
  94     free(r);
  95 }
  96
  97 XA_EXPORT int
  98 xa_surface_dma(struct xa_context *ctx,
  99                struct xa_surface *srf,
 100                void *data,
 101                unsigned int pitch,
 102                int to_surface, struct xa_box *boxes, unsigned int num_boxes)
 103 {
 104     struct pipe_transfer *transfer;
 105     void *map;
 106     int w, h, i;
 107     enum pipe_transfer_usage transfer_direction;
 108     struct pipe_context *pipe = ctx->pipe;
 109
 110     transfer_direction = (to_surface ? PIPE_TRANSFER_WRITE :
 111                           PIPE_TRANSFER_READ);
 112
 113     for (i = 0; i < num_boxes; ++i, ++boxes) {
 114         w = boxes->x2 - boxes->x1;
 115         h = boxes->y2 - boxes->y1;
 116
 117         map = pipe_transfer_map(pipe, srf->tex, 0, 0,
 118                                 transfer_direction, boxes->x1, boxes->y1,
 119                                 w, h, &transfer);
 120         if (!map)
 121             return -XA_ERR_NORES;
 122
 123         if (to_surface) {
 124             util_copy_rect(map, srf->tex->format, transfer->stride,
 125                            0, 0, w, h, data, pitch, boxes->x1, boxes->y1);
 126         } else {
 127             util_copy_rect(data, srf->tex->format, pitch,
 128                            boxes->x1, boxes->y1, w, h, map, transfer->stride, 0,
 129                            0);
 130         }
 131         pipe->transfer_unmap(pipe, transfer);
 132     }
 133     return XA_ERR_NONE;
 134 }
 135
 136 XA_EXPORT void *
 137 xa_surface_map(struct xa_context *ctx,
 138                struct xa_surface *srf, unsigned int usage)
 139 {
 140     void *map;
 141     unsigned int gallium_usage = 0;
 142     struct pipe_context *pipe = ctx->pipe;
 143
 144     /*
 145      * A surface may only have a single map.
 146      */
 147     if (srf->transfer)
 148         return NULL;
 149
 150     if (usage & XA_MAP_READ)
 151         gallium_usage |= PIPE_TRANSFER_READ;
 152     if (usage & XA_MAP_WRITE)
 153         gallium_usage |= PIPE_TRANSFER_WRITE;
 154     if (usage & XA_MAP_MAP_DIRECTLY)
 155         gallium_usage |= PIPE_TRANSFER_MAP_DIRECTLY;
 156     if (usage & XA_MAP_UNSYNCHRONIZED)
 157         gallium_usage |= PIPE_TRANSFER_UNSYNCHRONIZED;
 158     if (usage & XA_MAP_DONTBLOCK)
 159         gallium_usage |= PIPE_TRANSFER_DONTBLOCK;
 160     if (usage & XA_MAP_DISCARD_WHOLE_RESOURCE)
 161         gallium_usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
 162
 163     if (!(gallium_usage & (PIPE_TRANSFER_READ_WRITE)))
 164         return NULL;
 165
 166     map = pipe_transfer_map(pipe, srf->tex, 0, 0,
 167                             gallium_usage, 0, 0,
 168                             srf->tex->width0, srf->tex->height0,
 169                             &srf->transfer);
 170     if (!map)
 171         return NULL;
 172
 173     srf->mapping_pipe = pipe;
 174     return map;
 175 }
 176
 177 XA_EXPORT void
 178 xa_surface_unmap(struct xa_surface *srf)
 179 {
 180     if (srf->transfer) {
 181         struct pipe_context *pipe = srf->mapping_pipe;
 182
 183         pipe->transfer_unmap(pipe, srf->transfer);
 184         srf->transfer = NULL;
 185     }
 186 }
 187
 188 int
 189 xa_ctx_srf_create(struct xa_context *ctx, struct xa_surface *dst)
 190 {
 191     struct pipe_screen *screen = ctx->pipe->screen;
 192     struct pipe_surface srf_templ;
 193
 194     /*
 195      * Cache surfaces unless we change render target
 196      */
 197     if (ctx->srf) {
 198         if (ctx->srf->texture == dst->tex)
 199             return XA_ERR_NONE;
 200
 201         pipe_surface_reference(&ctx->srf, NULL);
 202     }
 203
 204     if (!screen->is_format_supported(screen,  dst->tex->format,
 205                                      PIPE_TEXTURE_2D, 0, 0,
 206                                      PIPE_BIND_RENDER_TARGET))
 207         return -XA_ERR_INVAL;
 208
 209     u_surface_default_template(&srf_templ, dst->tex);
 210     ctx->srf = ctx->pipe->create_surface(ctx->pipe, dst->tex, &srf_templ);
 211     if (!ctx->srf)
 212         return -XA_ERR_NORES;
 213
 214     return XA_ERR_NONE;
 215 }
 216
 217 void
 218 xa_ctx_srf_destroy(struct xa_context *ctx)
 219 {
 220     /*
 221      * Cache surfaces unless we change render target.
 222      * Final destruction on context destroy.
 223      */
 224 }
 225
 226 XA_EXPORT int
 227 xa_copy_prepare(struct xa_context *ctx,
 228                 struct xa_surface *dst, struct xa_surface *src)
 229 {
 230     if (src == dst)
 231         return -XA_ERR_INVAL;
 232
 233     if (src->tex->format != dst->tex->format) {
 234         int ret = xa_ctx_srf_create(ctx, dst);
 235         if (ret != XA_ERR_NONE)
 236             return ret;
 237         renderer_copy_prepare(ctx, ctx->srf, src->tex,
 238                               src->fdesc.xa_format,
 239                               dst->fdesc.xa_format);
 240         ctx->simple_copy = 0;
 241     } else
 242         ctx->simple_copy = 1;
 243
 244     ctx->src = src;
 245     ctx->dst = dst;
 246     xa_ctx_srf_destroy(ctx);
 247
 248     return 0;
 249 }
 250
 251 XA_EXPORT void
 252 xa_copy(struct xa_context *ctx,
 253         int dx, int dy, int sx, int sy, int width, int height)
 254 {
 255     struct pipe_box src_box;
 256
 257     xa_scissor_update(ctx, dx, dy, dx + width, dy + height);
 258
 259     if (ctx->simple_copy) {
 260         u_box_2d(sx, sy, width, height, &src_box);
 261         ctx->pipe->resource_copy_region(ctx->pipe,
 262                                         ctx->dst->tex, 0, dx, dy, 0,
 263                                         ctx->src->tex,
 264                                         0, &src_box);
 265     } else
 266         renderer_copy(ctx, dx, dy, sx, sy, width, height,
 267                       (float) ctx->src->tex->width0,
 268                       (float) ctx->src->tex->height0);
 269 }
 270
 271 XA_EXPORT void
 272 xa_copy_done(struct xa_context *ctx)
 273 {
 274     if (!ctx->simple_copy) {
 275         renderer_draw_flush(ctx);
 276     }
 277 }
 278
 279 static void
 280 bind_solid_blend_state(struct xa_context *ctx)
 281 {
 282     struct pipe_blend_state blend;
 283
 284     memset(&blend, 0, sizeof(struct pipe_blend_state));
 285     blend.rt[0].blend_enable = 0;
 286     blend.rt[0].colormask = PIPE_MASK_RGBA;
 287
 288     blend.rt[0].rgb_src_factor   = PIPE_BLENDFACTOR_ONE;
 289     blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
 290     blend.rt[0].rgb_dst_factor   = PIPE_BLENDFACTOR_ZERO;
 291     blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
 292
 293     cso_set_blend(ctx->cso, &blend);
 294 }
 295
 296 XA_EXPORT int
 297 xa_solid_prepare(struct xa_context *ctx, struct xa_surface *dst,
 298                  uint32_t fg)
 299 {
 300     unsigned vs_traits, fs_traits;
 301     struct xa_shader shader;
 302     int ret;
 303
 304     ret = xa_ctx_srf_create(ctx, dst);
 305     if (ret != XA_ERR_NONE)
 306         return ret;
 307
 308     if (ctx->srf->format == PIPE_FORMAT_L8_UNORM)
 309         xa_pixel_to_float4_a8(fg, ctx->solid_color);
 310     else
 311         xa_pixel_to_float4(fg, ctx->solid_color);
 312     ctx->has_solid_src = 1;
 313
 314     ctx->dst = dst;
 315
 316 #if 0
 317     debug_printf("Color Pixel=(%d, %d, %d, %d), RGBA=(%f, %f, %f, %f)\n",
 318                  (fg >> 24) & 0xff, (fg >> 16) & 0xff,
 319                  (fg >> 8) & 0xff,  (fg >> 0) & 0xff,
 320                  exa->solid_color[0], exa->solid_color[1],
 321                  exa->solid_color[2], exa->solid_color[3]);
 322 #endif
 323
 324     vs_traits = VS_SRC_SRC | VS_COMPOSITE;
 325     fs_traits = FS_SRC_SRC | VS_COMPOSITE;
 326
 327     renderer_bind_destination(ctx, ctx->srf);
 328     bind_solid_blend_state(ctx);
 329     cso_set_samplers(ctx->cso, PIPE_SHADER_FRAGMENT, 0, NULL);
 330     cso_set_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT, 0, NULL);
 331
 332     shader = xa_shaders_get(ctx->shaders, vs_traits, fs_traits);
 333     cso_set_vertex_shader_handle(ctx->cso, shader.vs);
 334     cso_set_fragment_shader_handle(ctx->cso, shader.fs);
 335
 336     renderer_begin_solid(ctx);
 337
 338     xa_ctx_srf_destroy(ctx);
 339     return XA_ERR_NONE;
 340 }
 341
 342 XA_EXPORT void
 343 xa_solid(struct xa_context *ctx, int x, int y, int width, int height)
 344 {
 345     xa_scissor_update(ctx, x, y, x + width, y + height);
 346     renderer_solid(ctx, x, y, x + width, y + height);
 347 }
 348
 349 XA_EXPORT void
 350 xa_solid_done(struct xa_context *ctx)
 351 {
 352     renderer_draw_flush(ctx);
 353     ctx->comp = NULL;
 354     ctx->has_solid_src = FALSE;
 355     ctx->num_bound_samplers = 0;
 356 }
 357
 358 XA_EXPORT struct xa_fence *
 359 xa_fence_get(struct xa_context *ctx)
 360 {
 361     struct xa_fence *fence = calloc(1, sizeof(*fence));
 362     struct pipe_screen *screen = ctx->xa->screen;
 363
 364     if (!fence)
 365         return NULL;
 366
 367     fence->xa = ctx->xa;
 368
 369     if (ctx->last_fence == NULL)
 370         fence->pipe_fence = NULL;
 371     else
 372         screen->fence_reference(screen, &fence->pipe_fence, ctx->last_fence);
 373
 374     return fence;
 375 }
 376
 377 XA_EXPORT int
 378 xa_fence_wait(struct xa_fence *fence, uint64_t timeout)
 379 {
 380     if (!fence)
 381         return XA_ERR_NONE;
 382
 383     if (fence->pipe_fence) {
 384         struct pipe_screen *screen = fence->xa->screen;
 385         boolean timed_out;
 386
 387         timed_out = !screen->fence_finish(screen, NULL, fence->pipe_fence, timeout);
 388         if (timed_out)
 389             return -XA_ERR_BUSY;
 390
 391         screen->fence_reference(screen, &fence->pipe_fence, NULL);
 392     }
 393     return XA_ERR_NONE;
 394 }
 395
 396 XA_EXPORT void
 397 xa_fence_destroy(struct xa_fence *fence)
 398 {
 399     if (!fence)
 400         return;
 401
 402     if (fence->pipe_fence) {
 403         struct pipe_screen *screen = fence->xa->screen;
 404
 405         screen->fence_reference(screen, &fence->pipe_fence, NULL);
 406     }
 407
 408     free(fence);
 409 }
 410
 411 void
 412 xa_ctx_sampler_views_destroy(struct xa_context *ctx)
 413 {
 414     int i;
 415
 416     for (i = 0; i < ctx->num_bound_samplers; ++i)
 417         pipe_sampler_view_reference(&ctx->bound_sampler_views[i], NULL);
 418     ctx->num_bound_samplers = 0;
 419 }