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_surface_psurf_create(struct xa_context *ctx, struct xa_surface *dst)
 178 {
 179     struct pipe_screen *screen = ctx->pipe->screen;
 180     struct pipe_surface srf_templ;
 181
 182     if (dst->srf)
 183         return -XA_ERR_INVAL;
 184
 185     if (!screen->is_format_supported(screen,  dst->tex->format,
 186                                      PIPE_TEXTURE_2D, 0,
 187                                      PIPE_BIND_RENDER_TARGET))
 188         return -XA_ERR_INVAL;
 189
 190     u_surface_default_template(&srf_templ, dst->tex,
 191                                PIPE_BIND_RENDER_TARGET);
 192     dst->srf = ctx->pipe->create_surface(ctx->pipe, dst->tex, &srf_templ);
 193     if (!dst->srf)
 194         return -XA_ERR_NORES;
 195
 196     return XA_ERR_NONE;
 197 }
 198
 199 void
 200 xa_surface_psurf_destroy(struct xa_surface *dst)
 201 {
 202     pipe_surface_reference(&dst->srf, NULL);
 203 }
 204
 205 int
 206 xa_copy_prepare(struct xa_context *ctx,
 207                 struct xa_surface *dst, struct xa_surface *src)
 208 {
 209     if (src == dst || dst->srf != NULL)
 210         return -XA_ERR_INVAL;
 211
 212     if (src->tex->format != dst->tex->format) {
 213         int ret = xa_surface_psurf_create(ctx, dst);
 214         if (ret != XA_ERR_NONE)
 215             return ret;
 216         renderer_copy_prepare(ctx, dst->srf, src->tex);
 217         ctx->simple_copy = 0;
 218     } else
 219         ctx->simple_copy = 1;
 220
 221     ctx->src = src;
 222     ctx->dst = dst;
 223
 224     return 0;
 225 }
 226
 227 void
 228 xa_copy(struct xa_context *ctx,
 229         int dx, int dy, int sx, int sy, int width, int height)
 230 {
 231     struct pipe_box src_box;
 232
 233     if (ctx->simple_copy) {
 234         u_box_2d(sx, sy, width, height, &src_box);
 235         ctx->pipe->resource_copy_region(ctx->pipe,
 236                                         ctx->dst->tex, 0, dx, dy, 0,
 237                                         ctx->src->tex,
 238                                         0, &src_box);
 239     } else
 240         renderer_copy(ctx, dx, dy, sx, sy, width, height,
 241                       (float) width, (float) height);
 242 }
 243
 244 void
 245 xa_copy_done(struct xa_context *ctx)
 246 {
 247     if (!ctx->simple_copy) {
 248            renderer_draw_flush(ctx);
 249            ctx->pipe->flush(ctx->pipe, &ctx->last_fence);
 250            xa_surface_psurf_destroy(ctx->dst);
 251     } else
 252         ctx->pipe->flush(ctx->pipe, &ctx->last_fence);
 253 }
 254
 255 static void
 256 bind_solid_blend_state(struct xa_context *ctx)
 257 {
 258     struct pipe_blend_state blend;
 259
 260     memset(&blend, 0, sizeof(struct pipe_blend_state));
 261     blend.rt[0].blend_enable = 0;
 262     blend.rt[0].colormask = PIPE_MASK_RGBA;
 263
 264     blend.rt[0].rgb_src_factor   = PIPE_BLENDFACTOR_ONE;
 265     blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
 266     blend.rt[0].rgb_dst_factor   = PIPE_BLENDFACTOR_ZERO;
 267     blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
 268
 269     cso_set_blend(ctx->cso, &blend);
 270 }
 271
 272 int
 273 xa_solid_prepare(struct xa_context *ctx, struct xa_surface *dst,
 274                  uint32_t fg)
 275 {
 276     unsigned vs_traits, fs_traits;
 277     struct xa_shader shader;
 278     int width, height;
 279     int ret;
 280
 281     ret = xa_surface_psurf_create(ctx, dst);
 282     if (ret != XA_ERR_NONE)
 283         return ret;
 284
 285     if (dst->srf->format == PIPE_FORMAT_L8_UNORM)
 286         xa_pixel_to_float4_a8(fg, ctx->solid_color);
 287     else
 288         xa_pixel_to_float4(fg, ctx->solid_color);
 289     ctx->has_solid_color = 1;
 290
 291     ctx->dst = dst;
 292     width = dst->srf->width;
 293     height = dst->srf->height;
 294
 295 #if 0
 296     debug_printf("Color Pixel=(%d, %d, %d, %d), RGBA=(%f, %f, %f, %f)\n",
 297                  (fg >> 24) & 0xff, (fg >> 16) & 0xff,
 298                  (fg >> 8) & 0xff,  (fg >> 0) & 0xff,
 299                  exa->solid_color[0], exa->solid_color[1],
 300                  exa->solid_color[2], exa->solid_color[3]);
 301 #endif
 302
 303     vs_traits = VS_SOLID_FILL;
 304     fs_traits = FS_SOLID_FILL;
 305
 306     renderer_bind_destination(ctx, dst->srf, width, height);
 307     bind_solid_blend_state(ctx);
 308     cso_set_samplers(ctx->cso, 0, NULL);
 309     cso_set_fragment_sampler_views(ctx->cso, 0, NULL);
 310
 311     shader = xa_shaders_get(ctx->shaders, vs_traits, fs_traits);
 312     cso_set_vertex_shader_handle(ctx->cso, shader.vs);
 313     cso_set_fragment_shader_handle(ctx->cso, shader.fs);
 314
 315     renderer_begin_solid(ctx);
 316
 317     xa_surface_psurf_destroy(dst);
 318     return XA_ERR_NONE;
 319 }
 320
 321 void
 322 xa_solid(struct xa_context *ctx, int x, int y, int width, int height)
 323 {
 324     renderer_solid(ctx, x, y, x + width, y + height, ctx->solid_color);
 325 }
 326
 327 void
 328 xa_solid_done(struct xa_context *ctx)
 329 {
 330     renderer_draw_flush(ctx);
 331     ctx->pipe->flush(ctx->pipe, &ctx->last_fence);
 332
 333     ctx->comp = NULL;
 334     ctx->has_solid_color = FALSE;
 335     ctx->num_bound_samplers = 0;
 336 }
 337
 338 struct xa_fence *
 339 xa_fence_get(struct xa_context *ctx)
 340 {
 341     struct xa_fence *fence = malloc(sizeof(*fence));
 342     struct pipe_screen *screen = ctx->xa->screen;
 343
 344     if (!fence)
 345         return NULL;
 346
 347     fence->xa = ctx->xa;
 348
 349     if (ctx->last_fence == NULL)
 350         fence->pipe_fence = NULL;
 351     else
 352         screen->fence_reference(screen, &fence->pipe_fence, ctx->last_fence);
 353
 354     return fence;
 355 }
 356
 357 int
 358 xa_fence_wait(struct xa_fence *fence, uint64_t timeout)
 359 {
 360     if (!fence)
 361         return XA_ERR_NONE;
 362
 363     if (fence->pipe_fence) {
 364         struct pipe_screen *screen = fence->xa->screen;
 365         boolean timed_out;
 366
 367         timed_out = !screen->fence_finish(screen, fence->pipe_fence, timeout);
 368         if (timed_out)
 369             return -XA_ERR_BUSY;
 370
 371         screen->fence_reference(screen, &fence->pipe_fence, NULL);
 372     }
 373     return XA_ERR_NONE;
 374 }
 375
 376 void
 377 xa_fence_destroy(struct xa_fence *fence)
 378 {
 379     if (!fence)
 380         return;
 381
 382     if (fence->pipe_fence) {
 383         struct pipe_screen *screen = fence->xa->screen;
 384
 385         screen->fence_reference(screen, &fence->pipe_fence, NULL);
 386     }
 387
 388     free(fence);
 389 }