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