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