src/gallium/drivers/softpipe/sp_context.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  * Copyright 2008 VMware, Inc.  All rights reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the
   9  * "Software"), to deal in the Software without restriction, including
  10  * without limitation the rights to use, copy, modify, merge, publish,
  11  * distribute, sub license, and/or sell copies of the Software, and to
  12  * permit persons to whom the Software is furnished to do so, subject to
  13  * the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the
  16  * next paragraph) shall be included in all copies or substantial portions
  17  * of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26  *
  27  **************************************************************************/
  28
  29 /* Author:
  30  *    Keith Whitwell <keith@tungstengraphics.com>
  31  */
  32
  33 #include "draw/draw_context.h"
  34 #include "draw/draw_vbuf.h"
  35 #include "pipe/p_defines.h"
  36 #include "util/u_math.h"
  37 #include "util/u_memory.h"
  38 #include "util/u_pstipple.h"
  39 #include "util/u_inlines.h"
  40 #include "tgsi/tgsi_exec.h"
  41 #include "vl/vl_decoder.h"
  42 #include "vl/vl_video_buffer.h"
  43 #include "sp_clear.h"
  44 #include "sp_context.h"
  45 #include "sp_flush.h"
  46 #include "sp_prim_vbuf.h"
  47 #include "sp_state.h"
  48 #include "sp_surface.h"
  49 #include "sp_tile_cache.h"
  50 #include "sp_tex_tile_cache.h"
  51 #include "sp_texture.h"
  52 #include "sp_query.h"
  53 #include "sp_screen.h"
  54
  55
  56 /**
  57  * Map any drawing surfaces which aren't already mapped
  58  */
  59 void
  60 softpipe_map_transfers(struct softpipe_context *sp)
  61 {
  62    unsigned i;
  63
  64    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  65       sp_tile_cache_map_transfers(sp->cbuf_cache[i]);
  66    }
  67
  68    sp_tile_cache_map_transfers(sp->zsbuf_cache);
  69 }
  70
  71
  72 /**
  73  * Unmap any mapped drawing surfaces
  74  */
  75 void
  76 softpipe_unmap_transfers(struct softpipe_context *sp)
  77 {
  78    uint i;
  79
  80    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  81       sp_tile_cache_unmap_transfers(sp->cbuf_cache[i]);
  82    }
  83
  84    sp_tile_cache_unmap_transfers(sp->zsbuf_cache);
  85 }
  86
  87
  88 static void
  89 softpipe_destroy( struct pipe_context *pipe )
  90 {
  91    struct softpipe_context *softpipe = softpipe_context( pipe );
  92    uint i;
  93
  94 #if DO_PSTIPPLE_IN_HELPER_MODULE
  95    if (softpipe->pstipple.sampler)
  96       pipe->delete_sampler_state(pipe, softpipe->pstipple.sampler);
  97
  98    pipe_resource_reference(&softpipe->pstipple.texture, NULL);
  99    pipe_sampler_view_reference(&softpipe->pstipple.sampler_view, NULL);
 100 #endif
 101
 102    if (softpipe->draw)
 103       draw_destroy( softpipe->draw );
 104
 105    if (softpipe->quad.shade)
 106       softpipe->quad.shade->destroy( softpipe->quad.shade );
 107
 108    if (softpipe->quad.depth_test)
 109       softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
 110
 111    if (softpipe->quad.blend)
 112       softpipe->quad.blend->destroy( softpipe->quad.blend );
 113
 114    if (softpipe->quad.pstipple)
 115       softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
 116
 117    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 118       sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
 119       pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
 120    }
 121
 122    sp_destroy_tile_cache(softpipe->zsbuf_cache);
 123    pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
 124
 125    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 126       sp_destroy_tex_tile_cache(softpipe->fragment_tex_cache[i]);
 127       pipe_sampler_view_reference(&softpipe->fragment_sampler_views[i], NULL);
 128    }
 129
 130    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 131       sp_destroy_tex_tile_cache(softpipe->vertex_tex_cache[i]);
 132       pipe_sampler_view_reference(&softpipe->vertex_sampler_views[i], NULL);
 133    }
 134
 135    for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
 136       sp_destroy_tex_tile_cache(softpipe->geometry_tex_cache[i]);
 137       pipe_sampler_view_reference(&softpipe->geometry_sampler_views[i], NULL);
 138    }
 139
 140    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 141       uint j;
 142
 143       for (j = 0; j < PIPE_MAX_CONSTANT_BUFFERS; j++) {
 144          if (softpipe->constants[i][j]) {
 145             pipe_resource_reference(&softpipe->constants[i][j], NULL);
 146          }
 147       }
 148    }
 149
 150    for (i = 0; i < softpipe->num_vertex_buffers; i++) {
 151       pipe_resource_reference(&softpipe->vertex_buffer[i].buffer, NULL);
 152    }
 153
 154    tgsi_exec_machine_destroy(softpipe->fs_machine);
 155
 156    FREE( softpipe );
 157 }
 158
 159
 160 /**
 161  * if (the texture is being used as a framebuffer surface)
 162  *    return SP_REFERENCED_FOR_WRITE
 163  * else if (the texture is a bound texture source)
 164  *    return SP_REFERENCED_FOR_READ
 165  * else
 166  *    return SP_UNREFERENCED
 167  */
 168 unsigned int
 169 softpipe_is_resource_referenced( struct pipe_context *pipe,
 170                                  struct pipe_resource *texture,
 171                                  unsigned level, int layer)
 172 {
 173    struct softpipe_context *softpipe = softpipe_context( pipe );
 174    unsigned i;
 175
 176    if (texture->target == PIPE_BUFFER)
 177       return SP_UNREFERENCED;
 178
 179    /* check if any of the bound drawing surfaces are this texture */
 180    if (softpipe->dirty_render_cache) {
 181       for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
 182          if (softpipe->framebuffer.cbufs[i] &&
 183              softpipe->framebuffer.cbufs[i]->texture == texture) {
 184             return SP_REFERENCED_FOR_WRITE;
 185          }
 186       }
 187       if (softpipe->framebuffer.zsbuf &&
 188           softpipe->framebuffer.zsbuf->texture == texture) {
 189          return SP_REFERENCED_FOR_WRITE;
 190       }
 191    }
 192
 193    /* check if any of the tex_cache textures are this texture */
 194    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 195       if (softpipe->fragment_tex_cache[i] &&
 196           softpipe->fragment_tex_cache[i]->texture == texture)
 197          return SP_REFERENCED_FOR_READ;
 198    }
 199    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 200       if (softpipe->vertex_tex_cache[i] &&
 201           softpipe->vertex_tex_cache[i]->texture == texture)
 202          return SP_REFERENCED_FOR_READ;
 203    }
 204    for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
 205       if (softpipe->geometry_tex_cache[i] &&
 206           softpipe->geometry_tex_cache[i]->texture == texture)
 207          return SP_REFERENCED_FOR_READ;
 208    }
 209
 210    return SP_UNREFERENCED;
 211 }
 212
 213
 214
 215
 216 static void
 217 softpipe_render_condition( struct pipe_context *pipe,
 218                            struct pipe_query *query,
 219                            uint mode )
 220 {
 221    struct softpipe_context *softpipe = softpipe_context( pipe );
 222
 223    softpipe->render_cond_query = query;
 224    softpipe->render_cond_mode = mode;
 225 }
 226
 227
 228
 229 struct pipe_context *
 230 softpipe_create_context( struct pipe_screen *screen,
 231                          void *priv )
 232 {
 233    struct softpipe_screen *sp_screen = softpipe_screen(screen);
 234    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 235    uint i;
 236
 237    util_init_math();
 238
 239    softpipe->dump_fs = debug_get_bool_option( "SOFTPIPE_DUMP_FS", FALSE );
 240    softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
 241
 242    softpipe->pipe.screen = screen;
 243    softpipe->pipe.destroy = softpipe_destroy;
 244    softpipe->pipe.priv = priv;
 245
 246    /* state setters */
 247    softpipe_init_blend_funcs(&softpipe->pipe);
 248    softpipe_init_clip_funcs(&softpipe->pipe);
 249    softpipe_init_query_funcs( softpipe );
 250    softpipe_init_rasterizer_funcs(&softpipe->pipe);
 251    softpipe_init_sampler_funcs(&softpipe->pipe);
 252    softpipe_init_shader_funcs(&softpipe->pipe);
 253    softpipe_init_streamout_funcs(&softpipe->pipe);
 254    softpipe_init_texture_funcs( &softpipe->pipe );
 255    softpipe_init_vertex_funcs(&softpipe->pipe);
 256
 257    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 258
 259    softpipe->pipe.draw_vbo = softpipe_draw_vbo;
 260
 261    softpipe->pipe.clear = softpipe_clear;
 262    softpipe->pipe.flush = softpipe_flush_wrapped;
 263
 264    softpipe->pipe.render_condition = softpipe_render_condition;
 265
 266    softpipe->pipe.create_video_decoder = vl_create_decoder;
 267    softpipe->pipe.create_video_buffer = vl_video_buffer_create;
 268
 269    /*
 270     * Alloc caches for accessing drawing surfaces and textures.
 271     * Must be before quad stage setup!
 272     */
 273    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 274       softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
 275    softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
 276
 277    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 278       softpipe->fragment_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
 279       if (!softpipe->fragment_tex_cache[i])
 280          goto fail;
 281    }
 282
 283    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 284       softpipe->vertex_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
 285       if (!softpipe->vertex_tex_cache[i])
 286          goto fail;
 287    }
 288
 289    for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
 290       softpipe->geometry_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
 291       if (!softpipe->geometry_tex_cache[i])
 292          goto fail;
 293    }
 294
 295    softpipe->fs_machine = tgsi_exec_machine_create();
 296
 297    /* setup quad rendering stages */
 298    softpipe->quad.shade = sp_quad_shade_stage(softpipe);
 299    softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
 300    softpipe->quad.blend = sp_quad_blend_stage(softpipe);
 301    softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
 302
 303
 304    /*
 305     * Create drawing context and plug our rendering stage into it.
 306     */
 307    if (sp_screen->use_llvm)
 308       softpipe->draw = draw_create(&softpipe->pipe);
 309    else
 310       softpipe->draw = draw_create_no_llvm(&softpipe->pipe);
 311    if (!softpipe->draw)
 312       goto fail;
 313
 314    draw_texture_samplers(softpipe->draw,
 315                          PIPE_SHADER_VERTEX,
 316                          PIPE_MAX_VERTEX_SAMPLERS,
 317                          (struct tgsi_sampler **)
 318                             softpipe->tgsi.vert_samplers_list);
 319
 320    draw_texture_samplers(softpipe->draw,
 321                          PIPE_SHADER_GEOMETRY,
 322                          PIPE_MAX_GEOMETRY_SAMPLERS,
 323                          (struct tgsi_sampler **)
 324                             softpipe->tgsi.geom_samplers_list);
 325
 326    if (debug_get_bool_option( "SOFTPIPE_NO_RAST", FALSE ))
 327       softpipe->no_rast = TRUE;
 328
 329    softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
 330    if (!softpipe->vbuf_backend)
 331       goto fail;
 332
 333    softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
 334    if (!softpipe->vbuf)
 335       goto fail;
 336
 337    draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
 338    draw_set_render(softpipe->draw, softpipe->vbuf_backend);
 339
 340
 341    /* plug in AA line/point stages */
 342    draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
 343    draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
 344
 345    /* Do polygon stipple w/ texture map + frag prog? */
 346 #if DO_PSTIPPLE_IN_DRAW_MODULE
 347    draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
 348 #endif
 349
 350    draw_wide_point_sprites(softpipe->draw, TRUE);
 351
 352    sp_init_surface_functions(softpipe);
 353
 354 #if DO_PSTIPPLE_IN_HELPER_MODULE
 355    /* create the polgon stipple sampler */
 356    softpipe->pstipple.sampler = util_pstipple_create_sampler(&softpipe->pipe);
 357 #endif
 358
 359    return &softpipe->pipe;
 360
 361  fail:
 362    softpipe_destroy(&softpipe->pipe);
 363    return NULL;
 364 }