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    softpipe->quad.shade->destroy( softpipe->quad.shade );
  95    softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
  96    softpipe->quad.blend->destroy( softpipe->quad.blend );
  97    softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
  98
  99    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 100       sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
 101       pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
 102    }
 103
 104    sp_destroy_tile_cache(softpipe->zsbuf_cache);
 105    pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
 106
 107    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 108       sp_destroy_tex_tile_cache(softpipe->tex_cache[i]);
 109       pipe_sampler_view_reference(&softpipe->sampler_views[i], NULL);
 110    }
 111
 112    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 113       sp_destroy_tex_tile_cache(softpipe->vertex_tex_cache[i]);
 114       pipe_sampler_view_reference(&softpipe->vertex_sampler_views[i], NULL);
 115    }
 116
 117    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 118       uint j;
 119
 120       for (j = 0; j < PIPE_MAX_CONSTANT_BUFFERS; j++) {
 121          if (softpipe->constants[i][j]) {
 122             pipe_resource_reference(&softpipe->constants[i][j], NULL);
 123          }
 124       }
 125    }
 126
 127    tgsi_exec_machine_destroy(softpipe->fs_machine);
 128
 129    FREE( softpipe );
 130 }
 131
 132
 133 /**
 134  * if (the texture is being used as a framebuffer surface)
 135  *    return PIPE_REFERENCED_FOR_WRITE
 136  * else if (the texture is a bound texture source)
 137  *    return PIPE_REFERENCED_FOR_READ
 138  * else
 139  *    return PIPE_UNREFERENCED
 140  */
 141 static unsigned int
 142 softpipe_is_resource_referenced( struct pipe_context *pipe,
 143                                 struct pipe_resource *texture,
 144                                 unsigned face, unsigned level)
 145 {
 146    struct softpipe_context *softpipe = softpipe_context( pipe );
 147    unsigned i;
 148
 149    if (texture->target == PIPE_BUFFER)
 150       return PIPE_UNREFERENCED;
 151
 152    /* check if any of the bound drawing surfaces are this texture */
 153    if (softpipe->dirty_render_cache) {
 154       for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
 155          if (softpipe->framebuffer.cbufs[i] &&
 156              softpipe->framebuffer.cbufs[i]->texture == texture) {
 157             return PIPE_REFERENCED_FOR_WRITE;
 158          }
 159       }
 160       if (softpipe->framebuffer.zsbuf &&
 161           softpipe->framebuffer.zsbuf->texture == texture) {
 162          return PIPE_REFERENCED_FOR_WRITE;
 163       }
 164    }
 165
 166    /* check if any of the tex_cache textures are this texture */
 167    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 168       if (softpipe->tex_cache[i] &&
 169           softpipe->tex_cache[i]->texture == texture)
 170          return PIPE_REFERENCED_FOR_READ;
 171    }
 172    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 173       if (softpipe->vertex_tex_cache[i] &&
 174           softpipe->vertex_tex_cache[i]->texture == texture)
 175          return PIPE_REFERENCED_FOR_READ;
 176    }
 177
 178    return PIPE_UNREFERENCED;
 179 }
 180
 181
 182
 183
 184 static void
 185 softpipe_render_condition( struct pipe_context *pipe,
 186                            struct pipe_query *query,
 187                            uint mode )
 188 {
 189    struct softpipe_context *softpipe = softpipe_context( pipe );
 190
 191    softpipe->render_cond_query = query;
 192    softpipe->render_cond_mode = mode;
 193 }
 194
 195
 196
 197 struct pipe_context *
 198 softpipe_create_context( struct pipe_screen *screen,
 199                          void *priv )
 200 {
 201    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 202    uint i;
 203
 204    util_init_math();
 205
 206 #ifdef PIPE_ARCH_X86
 207    softpipe->use_sse = !debug_get_bool_option( "GALLIUM_NOSSE", FALSE );
 208 #else
 209    softpipe->use_sse = FALSE;
 210 #endif
 211
 212    softpipe->dump_fs = debug_get_bool_option( "GALLIUM_DUMP_FS", FALSE );
 213    softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
 214
 215    softpipe->pipe.winsys = NULL;
 216    softpipe->pipe.screen = screen;
 217    softpipe->pipe.destroy = softpipe_destroy;
 218    softpipe->pipe.priv = priv;
 219
 220    /* state setters */
 221    softpipe->pipe.create_blend_state = softpipe_create_blend_state;
 222    softpipe->pipe.bind_blend_state   = softpipe_bind_blend_state;
 223    softpipe->pipe.delete_blend_state = softpipe_delete_blend_state;
 224
 225    softpipe->pipe.create_sampler_state = softpipe_create_sampler_state;
 226    softpipe->pipe.bind_fragment_sampler_states  = softpipe_bind_sampler_states;
 227    softpipe->pipe.bind_vertex_sampler_states = softpipe_bind_vertex_sampler_states;
 228    softpipe->pipe.delete_sampler_state = softpipe_delete_sampler_state;
 229
 230    softpipe->pipe.create_depth_stencil_alpha_state = softpipe_create_depth_stencil_state;
 231    softpipe->pipe.bind_depth_stencil_alpha_state   = softpipe_bind_depth_stencil_state;
 232    softpipe->pipe.delete_depth_stencil_alpha_state = softpipe_delete_depth_stencil_state;
 233
 234    softpipe->pipe.create_rasterizer_state = softpipe_create_rasterizer_state;
 235    softpipe->pipe.bind_rasterizer_state   = softpipe_bind_rasterizer_state;
 236    softpipe->pipe.delete_rasterizer_state = softpipe_delete_rasterizer_state;
 237
 238    softpipe->pipe.create_fs_state = softpipe_create_fs_state;
 239    softpipe->pipe.bind_fs_state   = softpipe_bind_fs_state;
 240    softpipe->pipe.delete_fs_state = softpipe_delete_fs_state;
 241
 242    softpipe->pipe.create_vs_state = softpipe_create_vs_state;
 243    softpipe->pipe.bind_vs_state   = softpipe_bind_vs_state;
 244    softpipe->pipe.delete_vs_state = softpipe_delete_vs_state;
 245
 246    softpipe->pipe.create_gs_state = softpipe_create_gs_state;
 247    softpipe->pipe.bind_gs_state   = softpipe_bind_gs_state;
 248    softpipe->pipe.delete_gs_state = softpipe_delete_gs_state;
 249
 250    softpipe->pipe.create_vertex_elements_state = softpipe_create_vertex_elements_state;
 251    softpipe->pipe.bind_vertex_elements_state = softpipe_bind_vertex_elements_state;
 252    softpipe->pipe.delete_vertex_elements_state = softpipe_delete_vertex_elements_state;
 253
 254    softpipe->pipe.set_blend_color = softpipe_set_blend_color;
 255    softpipe->pipe.set_stencil_ref = softpipe_set_stencil_ref;
 256    softpipe->pipe.set_clip_state = softpipe_set_clip_state;
 257    softpipe->pipe.set_constant_buffer = softpipe_set_constant_buffer;
 258    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 259    softpipe->pipe.set_polygon_stipple = softpipe_set_polygon_stipple;
 260    softpipe->pipe.set_scissor_state = softpipe_set_scissor_state;
 261    softpipe->pipe.set_fragment_sampler_views = softpipe_set_sampler_views;
 262    softpipe->pipe.set_vertex_sampler_views = softpipe_set_vertex_sampler_views;
 263    softpipe->pipe.create_sampler_view = softpipe_create_sampler_view;
 264    softpipe->pipe.sampler_view_destroy = softpipe_sampler_view_destroy;
 265    softpipe->pipe.set_viewport_state = softpipe_set_viewport_state;
 266
 267    softpipe->pipe.set_vertex_buffers = softpipe_set_vertex_buffers;
 268
 269    softpipe->pipe.draw_arrays = softpipe_draw_arrays;
 270    softpipe->pipe.draw_elements = softpipe_draw_elements;
 271    softpipe->pipe.draw_range_elements = softpipe_draw_range_elements;
 272    softpipe->pipe.draw_arrays_instanced = softpipe_draw_arrays_instanced;
 273    softpipe->pipe.draw_elements_instanced = softpipe_draw_elements_instanced;
 274
 275    softpipe->pipe.clear = softpipe_clear;
 276    softpipe->pipe.flush = softpipe_flush;
 277
 278    softpipe->pipe.is_resource_referenced = softpipe_is_resource_referenced;
 279
 280    softpipe_init_query_funcs( softpipe );
 281    softpipe_init_texture_funcs( &softpipe->pipe );
 282
 283    softpipe->pipe.render_condition = softpipe_render_condition;
 284
 285    /*
 286     * Alloc caches for accessing drawing surfaces and textures.
 287     * Must be before quad stage setup!
 288     */
 289    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 290       softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
 291    softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
 292
 293    for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
 294       softpipe->tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
 295    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 296       softpipe->vertex_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
 297    }
 298
 299    softpipe->fs_machine = tgsi_exec_machine_create();
 300
 301    /* setup quad rendering stages */
 302    softpipe->quad.shade = sp_quad_shade_stage(softpipe);
 303    softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
 304    softpipe->quad.blend = sp_quad_blend_stage(softpipe);
 305    softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
 306
 307
 308    /*
 309     * Create drawing context and plug our rendering stage into it.
 310     */
 311    softpipe->draw = draw_create(&softpipe->pipe);
 312    if (!softpipe->draw)
 313       goto fail;
 314
 315    draw_texture_samplers(softpipe->draw,
 316                          PIPE_MAX_VERTEX_SAMPLERS,
 317                          (struct tgsi_sampler **)
 318                             softpipe->tgsi.vert_samplers_list);
 319
 320    if (debug_get_bool_option( "SP_NO_RAST", FALSE ))
 321       softpipe->no_rast = TRUE;
 322
 323    softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
 324    if (!softpipe->vbuf_backend)
 325       goto fail;
 326
 327    softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
 328    if (!softpipe->vbuf)
 329       goto fail;
 330
 331    draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
 332    draw_set_render(softpipe->draw, softpipe->vbuf_backend);
 333
 334
 335    /* plug in AA line/point stages */
 336    draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
 337    draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
 338
 339    /* Do polygon stipple w/ texture map + frag prog? */
 340 #if DO_PSTIPPLE_IN_DRAW_MODULE
 341    draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
 342 #endif
 343
 344    draw_wide_point_sprites(softpipe->draw, TRUE);
 345
 346    sp_init_surface_functions(softpipe);
 347
 348    return &softpipe->pipe;
 349
 350  fail:
 351    softpipe_destroy(&softpipe->pipe);
 352    return NULL;
 353 }