src/gallium/drivers/softpipe/sp_context.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 VMware, Inc.
   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 VMWARE 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 <keithw@vmware.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 "util/u_upload_mgr.h"
  41 #include "tgsi/tgsi_exec.h"
  42 #include "sp_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 #include "sp_tex_sample.h"
  55 #include "sp_image.h"
  56
  57 static void
  58 softpipe_destroy( struct pipe_context *pipe )
  59 {
  60    struct softpipe_context *softpipe = softpipe_context( pipe );
  61    uint i, sh;
  62
  63 #if DO_PSTIPPLE_IN_HELPER_MODULE
  64    if (softpipe->pstipple.sampler)
  65       pipe->delete_sampler_state(pipe, softpipe->pstipple.sampler);
  66
  67    pipe_resource_reference(&softpipe->pstipple.texture, NULL);
  68    pipe_sampler_view_reference(&softpipe->pstipple.sampler_view, NULL);
  69 #endif
  70
  71    if (softpipe->blitter) {
  72       util_blitter_destroy(softpipe->blitter);
  73    }
  74
  75    if (softpipe->draw)
  76       draw_destroy( softpipe->draw );
  77
  78    if (softpipe->quad.shade)
  79       softpipe->quad.shade->destroy( softpipe->quad.shade );
  80
  81    if (softpipe->quad.depth_test)
  82       softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
  83
  84    if (softpipe->quad.blend)
  85       softpipe->quad.blend->destroy( softpipe->quad.blend );
  86
  87    if (softpipe->quad.pstipple)
  88       softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
  89
  90    if (softpipe->pipe.stream_uploader)
  91       u_upload_destroy(softpipe->pipe.stream_uploader);
  92
  93    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  94       sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
  95       pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
  96    }
  97
  98    sp_destroy_tile_cache(softpipe->zsbuf_cache);
  99    pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
 100
 101    for (sh = 0; sh < ARRAY_SIZE(softpipe->tex_cache); sh++) {
 102       for (i = 0; i < ARRAY_SIZE(softpipe->tex_cache[0]); i++) {
 103          sp_destroy_tex_tile_cache(softpipe->tex_cache[sh][i]);
 104          pipe_sampler_view_reference(&softpipe->sampler_views[sh][i], NULL);
 105       }
 106    }
 107
 108    for (sh = 0; sh < ARRAY_SIZE(softpipe->constants); sh++) {
 109       for (i = 0; i < ARRAY_SIZE(softpipe->constants[0]); i++) {
 110          if (softpipe->constants[sh][i]) {
 111             pipe_resource_reference(&softpipe->constants[sh][i], NULL);
 112          }
 113       }
 114    }
 115
 116    for (i = 0; i < softpipe->num_vertex_buffers; i++) {
 117       pipe_vertex_buffer_unreference(&softpipe->vertex_buffer[i]);
 118    }
 119
 120    tgsi_exec_machine_destroy(softpipe->fs_machine);
 121
 122    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 123       FREE(softpipe->tgsi.sampler[i]);
 124       FREE(softpipe->tgsi.image[i]);
 125       FREE(softpipe->tgsi.buffer[i]);
 126    }
 127
 128    FREE( softpipe );
 129 }
 130
 131
 132 /**
 133  * if (the texture is being used as a framebuffer surface)
 134  *    return SP_REFERENCED_FOR_WRITE
 135  * else if (the texture is a bound texture source)
 136  *    return SP_REFERENCED_FOR_READ
 137  * else
 138  *    return SP_UNREFERENCED
 139  */
 140 unsigned int
 141 softpipe_is_resource_referenced( struct pipe_context *pipe,
 142                                  struct pipe_resource *texture,
 143                                  unsigned level, int layer)
 144 {
 145    struct softpipe_context *softpipe = softpipe_context( pipe );
 146    unsigned i, sh;
 147
 148    if (texture->target == PIPE_BUFFER)
 149       return SP_UNREFERENCED;
 150
 151    /* check if any of the bound drawing surfaces are this texture */
 152    if (softpipe->dirty_render_cache) {
 153       for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
 154          if (softpipe->framebuffer.cbufs[i] &&
 155              softpipe->framebuffer.cbufs[i]->texture == texture) {
 156             return SP_REFERENCED_FOR_WRITE;
 157          }
 158       }
 159       if (softpipe->framebuffer.zsbuf &&
 160           softpipe->framebuffer.zsbuf->texture == texture) {
 161          return SP_REFERENCED_FOR_WRITE;
 162       }
 163    }
 164
 165    /* check if any of the tex_cache textures are this texture */
 166    for (sh = 0; sh < ARRAY_SIZE(softpipe->tex_cache); sh++) {
 167       for (i = 0; i < ARRAY_SIZE(softpipe->tex_cache[0]); i++) {
 168          if (softpipe->tex_cache[sh][i] &&
 169              softpipe->tex_cache[sh][i]->texture == texture)
 170             return SP_REFERENCED_FOR_READ;
 171       }
 172    }
 173
 174    return SP_UNREFERENCED;
 175 }
 176
 177
 178
 179
 180 static void
 181 softpipe_render_condition(struct pipe_context *pipe,
 182                           struct pipe_query *query,
 183                           bool condition,
 184                           enum pipe_render_cond_flag mode)
 185 {
 186    struct softpipe_context *softpipe = softpipe_context( pipe );
 187
 188    softpipe->render_cond_query = query;
 189    softpipe->render_cond_mode = mode;
 190    softpipe->render_cond_cond = condition;
 191 }
 192
 193
 194 static void
 195 softpipe_set_debug_callback(struct pipe_context *pipe,
 196                             const struct pipe_debug_callback *cb)
 197 {
 198    struct softpipe_context *softpipe = softpipe_context(pipe);
 199
 200    if (cb)
 201       softpipe->debug = *cb;
 202    else
 203       memset(&softpipe->debug, 0, sizeof(softpipe->debug));
 204 }
 205
 206
 207 struct pipe_context *
 208 softpipe_create_context(struct pipe_screen *screen,
 209                         void *priv, unsigned flags)
 210 {
 211    struct softpipe_screen *sp_screen = softpipe_screen(screen);
 212    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 213    uint i, sh;
 214
 215    util_init_math();
 216
 217    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 218       softpipe->tgsi.sampler[i] = sp_create_tgsi_sampler();
 219    }
 220
 221    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 222       softpipe->tgsi.image[i] = sp_create_tgsi_image();
 223    }
 224
 225    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 226       softpipe->tgsi.buffer[i] = sp_create_tgsi_buffer();
 227    }
 228
 229    softpipe->pipe.screen = screen;
 230    softpipe->pipe.destroy = softpipe_destroy;
 231    softpipe->pipe.priv = priv;
 232
 233    /* state setters */
 234    softpipe_init_blend_funcs(&softpipe->pipe);
 235    softpipe_init_clip_funcs(&softpipe->pipe);
 236    softpipe_init_query_funcs( softpipe );
 237    softpipe_init_rasterizer_funcs(&softpipe->pipe);
 238    softpipe_init_sampler_funcs(&softpipe->pipe);
 239    softpipe_init_shader_funcs(&softpipe->pipe);
 240    softpipe_init_streamout_funcs(&softpipe->pipe);
 241    softpipe_init_texture_funcs( &softpipe->pipe );
 242    softpipe_init_vertex_funcs(&softpipe->pipe);
 243    softpipe_init_image_funcs(&softpipe->pipe);
 244
 245    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 246    softpipe->pipe.set_debug_callback = softpipe_set_debug_callback;
 247
 248    softpipe->pipe.draw_vbo = softpipe_draw_vbo;
 249
 250    softpipe->pipe.launch_grid = softpipe_launch_grid;
 251
 252    softpipe->pipe.clear = softpipe_clear;
 253    softpipe->pipe.flush = softpipe_flush_wrapped;
 254    softpipe->pipe.texture_barrier = softpipe_texture_barrier;
 255    softpipe->pipe.memory_barrier = softpipe_memory_barrier;
 256    softpipe->pipe.render_condition = softpipe_render_condition;
 257
 258    /*
 259     * Alloc caches for accessing drawing surfaces and textures.
 260     * Must be before quad stage setup!
 261     */
 262    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 263       softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
 264    softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
 265
 266    /* Allocate texture caches */
 267    for (sh = 0; sh < ARRAY_SIZE(softpipe->tex_cache); sh++) {
 268       for (i = 0; i < ARRAY_SIZE(softpipe->tex_cache[0]); i++) {
 269          softpipe->tex_cache[sh][i] = sp_create_tex_tile_cache(&softpipe->pipe);
 270          if (!softpipe->tex_cache[sh][i])
 271             goto fail;
 272       }
 273    }
 274
 275    softpipe->fs_machine = tgsi_exec_machine_create(PIPE_SHADER_FRAGMENT);
 276
 277    /* setup quad rendering stages */
 278    softpipe->quad.shade = sp_quad_shade_stage(softpipe);
 279    softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
 280    softpipe->quad.blend = sp_quad_blend_stage(softpipe);
 281    softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
 282
 283    softpipe->pipe.stream_uploader = u_upload_create_default(&softpipe->pipe);
 284    if (!softpipe->pipe.stream_uploader)
 285       goto fail;
 286    softpipe->pipe.const_uploader = softpipe->pipe.stream_uploader;
 287
 288    /*
 289     * Create drawing context and plug our rendering stage into it.
 290     */
 291    if (sp_screen->use_llvm)
 292       softpipe->draw = draw_create(&softpipe->pipe);
 293    else
 294       softpipe->draw = draw_create_no_llvm(&softpipe->pipe);
 295    if (!softpipe->draw)
 296       goto fail;
 297
 298    draw_texture_sampler(softpipe->draw,
 299                         PIPE_SHADER_VERTEX,
 300                         (struct tgsi_sampler *)
 301                            softpipe->tgsi.sampler[PIPE_SHADER_VERTEX]);
 302
 303    draw_texture_sampler(softpipe->draw,
 304                         PIPE_SHADER_GEOMETRY,
 305                         (struct tgsi_sampler *)
 306                            softpipe->tgsi.sampler[PIPE_SHADER_GEOMETRY]);
 307
 308    draw_image(softpipe->draw,
 309               PIPE_SHADER_VERTEX,
 310               (struct tgsi_image *)
 311               softpipe->tgsi.image[PIPE_SHADER_VERTEX]);
 312
 313    draw_image(softpipe->draw,
 314               PIPE_SHADER_GEOMETRY,
 315               (struct tgsi_image *)
 316               softpipe->tgsi.image[PIPE_SHADER_GEOMETRY]);
 317
 318    draw_buffer(softpipe->draw,
 319               PIPE_SHADER_VERTEX,
 320               (struct tgsi_buffer *)
 321               softpipe->tgsi.buffer[PIPE_SHADER_VERTEX]);
 322
 323    draw_buffer(softpipe->draw,
 324               PIPE_SHADER_GEOMETRY,
 325               (struct tgsi_buffer *)
 326               softpipe->tgsi.buffer[PIPE_SHADER_GEOMETRY]);
 327
 328    softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
 329    if (!softpipe->vbuf_backend)
 330       goto fail;
 331
 332    softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
 333    if (!softpipe->vbuf)
 334       goto fail;
 335
 336    draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
 337    draw_set_render(softpipe->draw, softpipe->vbuf_backend);
 338
 339    softpipe->blitter = util_blitter_create(&softpipe->pipe);
 340    if (!softpipe->blitter) {
 341       goto fail;
 342    }
 343
 344    /* must be done before installing Draw stages */
 345    util_blitter_cache_all_shaders(softpipe->blitter);
 346
 347    /* plug in AA line/point stages */
 348    draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
 349    draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
 350
 351    /* Do polygon stipple w/ texture map + frag prog? */
 352 #if DO_PSTIPPLE_IN_DRAW_MODULE
 353    draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
 354 #endif
 355
 356    draw_wide_point_sprites(softpipe->draw, TRUE);
 357
 358    sp_init_surface_functions(softpipe);
 359
 360 #if DO_PSTIPPLE_IN_HELPER_MODULE
 361    /* create the polgon stipple sampler */
 362    softpipe->pstipple.sampler = util_pstipple_create_sampler(&softpipe->pipe);
 363 #endif
 364
 365    return &softpipe->pipe;
 366
 367  fail:
 368    softpipe_destroy(&softpipe->pipe);
 369    return NULL;
 370 }