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