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_inlines.h"
  39 #include "tgsi/tgsi_exec.h"
  40 #include "sp_clear.h"
  41 #include "sp_context.h"
  42 #include "sp_flush.h"
  43 #include "sp_prim_vbuf.h"
  44 #include "sp_state.h"
  45 #include "sp_surface.h"
  46 #include "sp_tile_cache.h"
  47 #include "sp_tex_tile_cache.h"
  48 #include "sp_texture.h"
  49 #include "sp_query.h"
  50
  51
  52
  53 /**
  54  * Map any drawing surfaces which aren't already mapped
  55  */
  56 void
  57 softpipe_map_transfers(struct softpipe_context *sp)
  58 {
  59    unsigned i;
  60
  61    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  62       sp_tile_cache_map_transfers(sp->cbuf_cache[i]);
  63    }
  64
  65    sp_tile_cache_map_transfers(sp->zsbuf_cache);
  66 }
  67
  68
  69 /**
  70  * Unmap any mapped drawing surfaces
  71  */
  72 void
  73 softpipe_unmap_transfers(struct softpipe_context *sp)
  74 {
  75    uint i;
  76
  77    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  78       sp_tile_cache_unmap_transfers(sp->cbuf_cache[i]);
  79    }
  80
  81    sp_tile_cache_unmap_transfers(sp->zsbuf_cache);
  82 }
  83
  84
  85 static void
  86 softpipe_destroy( struct pipe_context *pipe )
  87 {
  88    struct softpipe_context *softpipe = softpipe_context( pipe );
  89    uint i;
  90
  91    if (softpipe->draw)
  92       draw_destroy( softpipe->draw );
  93
  94    if (softpipe->quad.shade)
  95       softpipe->quad.shade->destroy( softpipe->quad.shade );
  96
  97    if (softpipe->quad.depth_test)
  98       softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
  99
 100    if (softpipe->quad.blend)
 101       softpipe->quad.blend->destroy( softpipe->quad.blend );
 102
 103    if (softpipe->quad.pstipple)
 104       softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
 105
 106    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 107       sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
 108       pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
 109    }
 110
 111    sp_destroy_tile_cache(softpipe->zsbuf_cache);
 112    pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
 113
 114    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 115       sp_destroy_tex_tile_cache(softpipe->fragment_tex_cache[i]);
 116       pipe_sampler_view_reference(&softpipe->fragment_sampler_views[i], NULL);
 117    }
 118
 119    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 120       sp_destroy_tex_tile_cache(softpipe->vertex_tex_cache[i]);
 121       pipe_sampler_view_reference(&softpipe->vertex_sampler_views[i], NULL);
 122    }
 123
 124    for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
 125       sp_destroy_tex_tile_cache(softpipe->geometry_tex_cache[i]);
 126       pipe_sampler_view_reference(&softpipe->geometry_sampler_views[i], NULL);
 127    }
 128
 129    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 130       uint j;
 131
 132       for (j = 0; j < PIPE_MAX_CONSTANT_BUFFERS; j++) {
 133          if (softpipe->constants[i][j]) {
 134             pipe_resource_reference(&softpipe->constants[i][j], NULL);
 135          }
 136       }
 137    }
 138
 139    for (i = 0; i < softpipe->num_vertex_buffers; i++) {
 140       pipe_resource_reference(&softpipe->vertex_buffer[i].buffer, NULL);
 141    }
 142
 143    tgsi_exec_machine_destroy(softpipe->fs_machine);
 144
 145    FREE( softpipe );
 146 }
 147
 148
 149 /**
 150  * if (the texture is being used as a framebuffer surface)
 151  *    return PIPE_REFERENCED_FOR_WRITE
 152  * else if (the texture is a bound texture source)
 153  *    return PIPE_REFERENCED_FOR_READ
 154  * else
 155  *    return PIPE_UNREFERENCED
 156  */
 157 static unsigned int
 158 softpipe_is_resource_referenced( struct pipe_context *pipe,
 159                                  struct pipe_resource *texture,
 160                                  unsigned level, int layer)
 161 {
 162    struct softpipe_context *softpipe = softpipe_context( pipe );
 163    unsigned i;
 164
 165    if (texture->target == PIPE_BUFFER)
 166       return PIPE_UNREFERENCED;
 167
 168    /* check if any of the bound drawing surfaces are this texture */
 169    if (softpipe->dirty_render_cache) {
 170       for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
 171          if (softpipe->framebuffer.cbufs[i] &&
 172              softpipe->framebuffer.cbufs[i]->texture == texture) {
 173             return PIPE_REFERENCED_FOR_WRITE;
 174          }
 175       }
 176       if (softpipe->framebuffer.zsbuf &&
 177           softpipe->framebuffer.zsbuf->texture == texture) {
 178          return PIPE_REFERENCED_FOR_WRITE;
 179       }
 180    }
 181
 182    /* check if any of the tex_cache textures are this texture */
 183    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 184       if (softpipe->fragment_tex_cache[i] &&
 185           softpipe->fragment_tex_cache[i]->texture == texture)
 186          return PIPE_REFERENCED_FOR_READ;
 187    }
 188    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 189       if (softpipe->vertex_tex_cache[i] &&
 190           softpipe->vertex_tex_cache[i]->texture == texture)
 191          return PIPE_REFERENCED_FOR_READ;
 192    }
 193    for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
 194       if (softpipe->geometry_tex_cache[i] &&
 195           softpipe->geometry_tex_cache[i]->texture == texture)
 196          return PIPE_REFERENCED_FOR_READ;
 197    }
 198
 199    return PIPE_UNREFERENCED;
 200 }
 201
 202
 203
 204
 205 static void
 206 softpipe_render_condition( struct pipe_context *pipe,
 207                            struct pipe_query *query,
 208                            uint mode )
 209 {
 210    struct softpipe_context *softpipe = softpipe_context( pipe );
 211
 212    softpipe->render_cond_query = query;
 213    softpipe->render_cond_mode = mode;
 214 }
 215
 216
 217
 218 struct pipe_context *
 219 softpipe_create_context( struct pipe_screen *screen,
 220                          void *priv )
 221 {
 222    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 223    uint i;
 224
 225    util_init_math();
 226
 227 #ifdef PIPE_ARCH_X86
 228    softpipe->use_sse = !debug_get_bool_option( "GALLIUM_NOSSE", FALSE );
 229 #else
 230    softpipe->use_sse = FALSE;
 231 #endif
 232
 233    softpipe->dump_fs = debug_get_bool_option( "GALLIUM_DUMP_FS", FALSE );
 234    softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
 235
 236    softpipe->pipe.winsys = NULL;
 237    softpipe->pipe.screen = screen;
 238    softpipe->pipe.destroy = softpipe_destroy;
 239    softpipe->pipe.priv = priv;
 240
 241    /* state setters */
 242    softpipe_init_blend_funcs(&softpipe->pipe);
 243    softpipe_init_clip_funcs(&softpipe->pipe);
 244    softpipe_init_query_funcs( softpipe );
 245    softpipe_init_rasterizer_funcs(&softpipe->pipe);
 246    softpipe_init_sampler_funcs(&softpipe->pipe);
 247    softpipe_init_shader_funcs(&softpipe->pipe);
 248    softpipe_init_streamout_funcs(&softpipe->pipe);
 249    softpipe_init_texture_funcs( &softpipe->pipe );
 250    softpipe_init_vertex_funcs(&softpipe->pipe);
 251
 252    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 253
 254    softpipe->pipe.draw_vbo = softpipe_draw_vbo;
 255    softpipe->pipe.draw_stream_output = softpipe_draw_stream_output;
 256
 257    softpipe->pipe.clear = softpipe_clear;
 258    softpipe->pipe.flush = softpipe_flush;
 259
 260    softpipe->pipe.is_resource_referenced = softpipe_is_resource_referenced;
 261
 262    softpipe->pipe.render_condition = softpipe_render_condition;
 263
 264    /*
 265     * Alloc caches for accessing drawing surfaces and textures.
 266     * Must be before quad stage setup!
 267     */
 268    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 269       softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
 270    softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
 271
 272    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 273       softpipe->fragment_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
 274       if (!softpipe->fragment_tex_cache[i])
 275          goto fail;
 276    }
 277
 278    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 279       softpipe->vertex_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
 280       if (!softpipe->vertex_tex_cache[i])
 281          goto fail;
 282    }
 283
 284    for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
 285       softpipe->geometry_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
 286       if (!softpipe->geometry_tex_cache[i])
 287          goto fail;
 288    }
 289
 290    softpipe->fs_machine = tgsi_exec_machine_create();
 291
 292    /* setup quad rendering stages */
 293    softpipe->quad.shade = sp_quad_shade_stage(softpipe);
 294    softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
 295    softpipe->quad.blend = sp_quad_blend_stage(softpipe);
 296    softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
 297
 298
 299    /*
 300     * Create drawing context and plug our rendering stage into it.
 301     */
 302    softpipe->draw = draw_create(&softpipe->pipe);
 303    if (!softpipe->draw)
 304       goto fail;
 305
 306    draw_texture_samplers(softpipe->draw,
 307                          PIPE_SHADER_VERTEX,
 308                          PIPE_MAX_VERTEX_SAMPLERS,
 309                          (struct tgsi_sampler **)
 310                             softpipe->tgsi.vert_samplers_list);
 311
 312    draw_texture_samplers(softpipe->draw,
 313                          PIPE_SHADER_GEOMETRY,
 314                          PIPE_MAX_GEOMETRY_SAMPLERS,
 315                          (struct tgsi_sampler **)
 316                             softpipe->tgsi.geom_samplers_list);
 317
 318    if (debug_get_bool_option( "SP_NO_RAST", FALSE ))
 319       softpipe->no_rast = TRUE;
 320
 321    softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
 322    if (!softpipe->vbuf_backend)
 323       goto fail;
 324
 325    softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
 326    if (!softpipe->vbuf)
 327       goto fail;
 328
 329    draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
 330    draw_set_render(softpipe->draw, softpipe->vbuf_backend);
 331
 332
 333    /* plug in AA line/point stages */
 334    draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
 335    draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
 336
 337    /* Do polygon stipple w/ texture map + frag prog? */
 338 #if DO_PSTIPPLE_IN_DRAW_MODULE
 339    draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
 340 #endif
 341
 342    draw_wide_point_sprites(softpipe->draw, TRUE);
 343
 344    sp_init_surface_functions(softpipe);
 345
 346    return &softpipe->pipe;
 347
 348  fail:
 349    softpipe_destroy(&softpipe->pipe);
 350    return NULL;
 351 }