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, sh;
  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->blitter) {
 103       util_blitter_destroy(softpipe->blitter);
 104    }
 105
 106    if (softpipe->draw)
 107       draw_destroy( softpipe->draw );
 108
 109    if (softpipe->quad.shade)
 110       softpipe->quad.shade->destroy( softpipe->quad.shade );
 111
 112    if (softpipe->quad.depth_test)
 113       softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
 114
 115    if (softpipe->quad.blend)
 116       softpipe->quad.blend->destroy( softpipe->quad.blend );
 117
 118    if (softpipe->quad.pstipple)
 119       softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
 120
 121    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 122       sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
 123       pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
 124    }
 125
 126    sp_destroy_tile_cache(softpipe->zsbuf_cache);
 127    pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
 128
 129    for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
 130       for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
 131          sp_destroy_tex_tile_cache(softpipe->tex_cache[sh][i]);
 132          pipe_sampler_view_reference(&softpipe->sampler_views[sh][i], NULL);
 133       }
 134    }
 135
 136    for (sh = 0; sh < Elements(softpipe->constants); sh++) {
 137       for (i = 0; i < Elements(softpipe->constants[0]); i++) {
 138          if (softpipe->constants[sh][i]) {
 139             pipe_resource_reference(&softpipe->constants[sh][i], NULL);
 140          }
 141       }
 142    }
 143
 144    for (i = 0; i < softpipe->num_vertex_buffers; i++) {
 145       pipe_resource_reference(&softpipe->vertex_buffer[i].buffer, NULL);
 146    }
 147
 148    tgsi_exec_machine_destroy(softpipe->fs_machine);
 149
 150    FREE( softpipe );
 151 }
 152
 153
 154 /**
 155  * if (the texture is being used as a framebuffer surface)
 156  *    return SP_REFERENCED_FOR_WRITE
 157  * else if (the texture is a bound texture source)
 158  *    return SP_REFERENCED_FOR_READ
 159  * else
 160  *    return SP_UNREFERENCED
 161  */
 162 unsigned int
 163 softpipe_is_resource_referenced( struct pipe_context *pipe,
 164                                  struct pipe_resource *texture,
 165                                  unsigned level, int layer)
 166 {
 167    struct softpipe_context *softpipe = softpipe_context( pipe );
 168    unsigned i, sh;
 169
 170    if (texture->target == PIPE_BUFFER)
 171       return SP_UNREFERENCED;
 172
 173    /* check if any of the bound drawing surfaces are this texture */
 174    if (softpipe->dirty_render_cache) {
 175       for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
 176          if (softpipe->framebuffer.cbufs[i] &&
 177              softpipe->framebuffer.cbufs[i]->texture == texture) {
 178             return SP_REFERENCED_FOR_WRITE;
 179          }
 180       }
 181       if (softpipe->framebuffer.zsbuf &&
 182           softpipe->framebuffer.zsbuf->texture == texture) {
 183          return SP_REFERENCED_FOR_WRITE;
 184       }
 185    }
 186
 187    /* check if any of the tex_cache textures are this texture */
 188    for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
 189       for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
 190          if (softpipe->tex_cache[sh][i] &&
 191              softpipe->tex_cache[sh][i]->texture == texture)
 192             return SP_REFERENCED_FOR_READ;
 193       }
 194    }
 195
 196    return SP_UNREFERENCED;
 197 }
 198
 199
 200
 201
 202 static void
 203 softpipe_render_condition( struct pipe_context *pipe,
 204                            struct pipe_query *query,
 205                            uint mode )
 206 {
 207    struct softpipe_context *softpipe = softpipe_context( pipe );
 208
 209    softpipe->render_cond_query = query;
 210    softpipe->render_cond_mode = mode;
 211 }
 212
 213
 214
 215 struct pipe_context *
 216 softpipe_create_context( struct pipe_screen *screen,
 217                          void *priv )
 218 {
 219    struct softpipe_screen *sp_screen = softpipe_screen(screen);
 220    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 221    uint i, sh;
 222
 223    util_init_math();
 224
 225    softpipe->dump_fs = debug_get_bool_option( "SOFTPIPE_DUMP_FS", FALSE );
 226    softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
 227
 228    softpipe->pipe.screen = screen;
 229    softpipe->pipe.destroy = softpipe_destroy;
 230    softpipe->pipe.priv = priv;
 231
 232    /* state setters */
 233    softpipe_init_blend_funcs(&softpipe->pipe);
 234    softpipe_init_clip_funcs(&softpipe->pipe);
 235    softpipe_init_query_funcs( softpipe );
 236    softpipe_init_rasterizer_funcs(&softpipe->pipe);
 237    softpipe_init_sampler_funcs(&softpipe->pipe);
 238    softpipe_init_shader_funcs(&softpipe->pipe);
 239    softpipe_init_streamout_funcs(&softpipe->pipe);
 240    softpipe_init_texture_funcs( &softpipe->pipe );
 241    softpipe_init_vertex_funcs(&softpipe->pipe);
 242
 243    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 244
 245    softpipe->pipe.draw_vbo = softpipe_draw_vbo;
 246
 247    softpipe->pipe.clear = softpipe_clear;
 248    softpipe->pipe.flush = softpipe_flush_wrapped;
 249
 250    softpipe->pipe.render_condition = softpipe_render_condition;
 251
 252    softpipe->pipe.create_video_decoder = vl_create_decoder;
 253    softpipe->pipe.create_video_buffer = vl_video_buffer_create;
 254
 255    /*
 256     * Alloc caches for accessing drawing surfaces and textures.
 257     * Must be before quad stage setup!
 258     */
 259    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 260       softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
 261    softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
 262
 263    /* Allocate texture caches */
 264    for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
 265       for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
 266          softpipe->tex_cache[sh][i] = sp_create_tex_tile_cache(&softpipe->pipe);
 267          if (!softpipe->tex_cache[sh][i])
 268             goto fail;
 269       }
 270    }
 271
 272    softpipe->fs_machine = tgsi_exec_machine_create();
 273
 274    /* setup quad rendering stages */
 275    softpipe->quad.shade = sp_quad_shade_stage(softpipe);
 276    softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
 277    softpipe->quad.blend = sp_quad_blend_stage(softpipe);
 278    softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
 279
 280
 281    /*
 282     * Create drawing context and plug our rendering stage into it.
 283     */
 284    if (sp_screen->use_llvm)
 285       softpipe->draw = draw_create(&softpipe->pipe);
 286    else
 287       softpipe->draw = draw_create_no_llvm(&softpipe->pipe);
 288    if (!softpipe->draw)
 289       goto fail;
 290
 291    draw_texture_samplers(softpipe->draw,
 292                          PIPE_SHADER_VERTEX,
 293                          PIPE_MAX_SAMPLERS,
 294                          (struct tgsi_sampler **)
 295                             softpipe->tgsi.samplers_list[PIPE_SHADER_VERTEX]);
 296
 297    draw_texture_samplers(softpipe->draw,
 298                          PIPE_SHADER_GEOMETRY,
 299                          PIPE_MAX_SAMPLERS,
 300                          (struct tgsi_sampler **)
 301                             softpipe->tgsi.samplers_list[PIPE_SHADER_GEOMETRY]);
 302
 303    if (debug_get_bool_option( "SOFTPIPE_NO_RAST", FALSE ))
 304       softpipe->no_rast = TRUE;
 305
 306    softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
 307    if (!softpipe->vbuf_backend)
 308       goto fail;
 309
 310    softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
 311    if (!softpipe->vbuf)
 312       goto fail;
 313
 314    draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
 315    draw_set_render(softpipe->draw, softpipe->vbuf_backend);
 316
 317    softpipe->blitter = util_blitter_create(&softpipe->pipe);
 318    if (!softpipe->blitter) {
 319       goto fail;
 320    }
 321
 322    /* must be done before installing Draw stages */
 323    util_blitter_cache_all_shaders(softpipe->blitter);
 324
 325    /* plug in AA line/point stages */
 326    draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
 327    draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
 328
 329    /* Do polygon stipple w/ texture map + frag prog? */
 330 #if DO_PSTIPPLE_IN_DRAW_MODULE
 331    draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
 332 #endif
 333
 334    draw_wide_point_sprites(softpipe->draw, TRUE);
 335
 336    sp_init_surface_functions(softpipe);
 337
 338 #if DO_PSTIPPLE_IN_HELPER_MODULE
 339    /* create the polgon stipple sampler */
 340    softpipe->pstipple.sampler = util_pstipple_create_sampler(&softpipe->pipe);
 341 #endif
 342
 343    return &softpipe->pipe;
 344
 345  fail:
 346    softpipe_destroy(&softpipe->pipe);
 347    return NULL;
 348 }