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 #include "sp_tex_sample.h"
  55
  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    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  91       sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
  92       pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
  93    }
  94
  95    sp_destroy_tile_cache(softpipe->zsbuf_cache);
  96    pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
  97
  98    for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
  99       for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
 100          sp_destroy_tex_tile_cache(softpipe->tex_cache[sh][i]);
 101          pipe_sampler_view_reference(&softpipe->sampler_views[sh][i], NULL);
 102       }
 103    }
 104
 105    for (sh = 0; sh < Elements(softpipe->constants); sh++) {
 106       for (i = 0; i < Elements(softpipe->constants[0]); i++) {
 107          if (softpipe->constants[sh][i]) {
 108             pipe_resource_reference(&softpipe->constants[sh][i], NULL);
 109          }
 110       }
 111    }
 112
 113    for (i = 0; i < softpipe->num_vertex_buffers; i++) {
 114       pipe_resource_reference(&softpipe->vertex_buffer[i].buffer, NULL);
 115    }
 116
 117    tgsi_exec_machine_destroy(softpipe->fs_machine);
 118
 119    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 120       FREE(softpipe->tgsi.sampler[i]);
 121    }
 122
 123    FREE( softpipe );
 124 }
 125
 126
 127 /**
 128  * if (the texture is being used as a framebuffer surface)
 129  *    return SP_REFERENCED_FOR_WRITE
 130  * else if (the texture is a bound texture source)
 131  *    return SP_REFERENCED_FOR_READ
 132  * else
 133  *    return SP_UNREFERENCED
 134  */
 135 unsigned int
 136 softpipe_is_resource_referenced( struct pipe_context *pipe,
 137                                  struct pipe_resource *texture,
 138                                  unsigned level, int layer)
 139 {
 140    struct softpipe_context *softpipe = softpipe_context( pipe );
 141    unsigned i, sh;
 142
 143    if (texture->target == PIPE_BUFFER)
 144       return SP_UNREFERENCED;
 145
 146    /* check if any of the bound drawing surfaces are this texture */
 147    if (softpipe->dirty_render_cache) {
 148       for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
 149          if (softpipe->framebuffer.cbufs[i] &&
 150              softpipe->framebuffer.cbufs[i]->texture == texture) {
 151             return SP_REFERENCED_FOR_WRITE;
 152          }
 153       }
 154       if (softpipe->framebuffer.zsbuf &&
 155           softpipe->framebuffer.zsbuf->texture == texture) {
 156          return SP_REFERENCED_FOR_WRITE;
 157       }
 158    }
 159
 160    /* check if any of the tex_cache textures are this texture */
 161    for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
 162       for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
 163          if (softpipe->tex_cache[sh][i] &&
 164              softpipe->tex_cache[sh][i]->texture == texture)
 165             return SP_REFERENCED_FOR_READ;
 166       }
 167    }
 168
 169    return SP_UNREFERENCED;
 170 }
 171
 172
 173
 174
 175 static void
 176 softpipe_render_condition( struct pipe_context *pipe,
 177                            struct pipe_query *query,
 178                            uint mode )
 179 {
 180    struct softpipe_context *softpipe = softpipe_context( pipe );
 181
 182    softpipe->render_cond_query = query;
 183    softpipe->render_cond_mode = mode;
 184 }
 185
 186
 187
 188 struct pipe_context *
 189 softpipe_create_context( struct pipe_screen *screen,
 190                          void *priv )
 191 {
 192    struct softpipe_screen *sp_screen = softpipe_screen(screen);
 193    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 194    uint i, sh;
 195
 196    util_init_math();
 197
 198    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 199       softpipe->tgsi.sampler[i] = sp_create_tgsi_sampler();
 200    }
 201
 202    softpipe->dump_fs = debug_get_bool_option( "SOFTPIPE_DUMP_FS", FALSE );
 203    softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
 204
 205    softpipe->pipe.screen = screen;
 206    softpipe->pipe.destroy = softpipe_destroy;
 207    softpipe->pipe.priv = priv;
 208
 209    /* state setters */
 210    softpipe_init_blend_funcs(&softpipe->pipe);
 211    softpipe_init_clip_funcs(&softpipe->pipe);
 212    softpipe_init_query_funcs( softpipe );
 213    softpipe_init_rasterizer_funcs(&softpipe->pipe);
 214    softpipe_init_sampler_funcs(&softpipe->pipe);
 215    softpipe_init_shader_funcs(&softpipe->pipe);
 216    softpipe_init_streamout_funcs(&softpipe->pipe);
 217    softpipe_init_texture_funcs( &softpipe->pipe );
 218    softpipe_init_vertex_funcs(&softpipe->pipe);
 219
 220    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 221
 222    softpipe->pipe.draw_vbo = softpipe_draw_vbo;
 223
 224    softpipe->pipe.clear = softpipe_clear;
 225    softpipe->pipe.flush = softpipe_flush_wrapped;
 226
 227    softpipe->pipe.render_condition = softpipe_render_condition;
 228
 229    softpipe->pipe.create_video_decoder = vl_create_decoder;
 230    softpipe->pipe.create_video_buffer = vl_video_buffer_create;
 231
 232    /*
 233     * Alloc caches for accessing drawing surfaces and textures.
 234     * Must be before quad stage setup!
 235     */
 236    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 237       softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
 238    softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
 239
 240    /* Allocate texture caches */
 241    for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
 242       for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
 243          softpipe->tex_cache[sh][i] = sp_create_tex_tile_cache(&softpipe->pipe);
 244          if (!softpipe->tex_cache[sh][i])
 245             goto fail;
 246       }
 247    }
 248
 249    softpipe->fs_machine = tgsi_exec_machine_create();
 250
 251    /* setup quad rendering stages */
 252    softpipe->quad.shade = sp_quad_shade_stage(softpipe);
 253    softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
 254    softpipe->quad.blend = sp_quad_blend_stage(softpipe);
 255    softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
 256
 257
 258    /*
 259     * Create drawing context and plug our rendering stage into it.
 260     */
 261    if (sp_screen->use_llvm)
 262       softpipe->draw = draw_create(&softpipe->pipe);
 263    else
 264       softpipe->draw = draw_create_no_llvm(&softpipe->pipe);
 265    if (!softpipe->draw)
 266       goto fail;
 267
 268    draw_texture_sampler(softpipe->draw,
 269                         PIPE_SHADER_VERTEX,
 270                         (struct tgsi_sampler *)
 271                            softpipe->tgsi.sampler[PIPE_SHADER_VERTEX]);
 272
 273    draw_texture_sampler(softpipe->draw,
 274                         PIPE_SHADER_GEOMETRY,
 275                         (struct tgsi_sampler *)
 276                            softpipe->tgsi.sampler[PIPE_SHADER_GEOMETRY]);
 277
 278    if (debug_get_bool_option( "SOFTPIPE_NO_RAST", FALSE ))
 279       softpipe->no_rast = TRUE;
 280
 281    softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
 282    if (!softpipe->vbuf_backend)
 283       goto fail;
 284
 285    softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
 286    if (!softpipe->vbuf)
 287       goto fail;
 288
 289    draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
 290    draw_set_render(softpipe->draw, softpipe->vbuf_backend);
 291
 292    softpipe->blitter = util_blitter_create(&softpipe->pipe);
 293    if (!softpipe->blitter) {
 294       goto fail;
 295    }
 296
 297    /* must be done before installing Draw stages */
 298    util_blitter_cache_all_shaders(softpipe->blitter);
 299
 300    /* plug in AA line/point stages */
 301    draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
 302    draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
 303
 304    /* Do polygon stipple w/ texture map + frag prog? */
 305 #if DO_PSTIPPLE_IN_DRAW_MODULE
 306    draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
 307 #endif
 308
 309    draw_wide_point_sprites(softpipe->draw, TRUE);
 310
 311    sp_init_surface_functions(softpipe);
 312
 313 #if DO_PSTIPPLE_IN_HELPER_MODULE
 314    /* create the polgon stipple sampler */
 315    softpipe->pstipple.sampler = util_pstipple_create_sampler(&softpipe->pipe);
 316 #endif
 317
 318    return &softpipe->pipe;
 319
 320  fail:
 321    softpipe_destroy(&softpipe->pipe);
 322    return NULL;
 323 }