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 "sp_clear.h"
  40 #include "sp_context.h"
  41 #include "sp_flush.h"
  42 #include "sp_prim_vbuf.h"
  43 #include "sp_state.h"
  44 #include "sp_surface.h"
  45 #include "sp_tile_cache.h"
  46 #include "sp_tex_tile_cache.h"
  47 #include "sp_query.h"
  48
  49
  50
  51 /**
  52  * Map any drawing surfaces which aren't already mapped
  53  */
  54 void
  55 softpipe_map_transfers(struct softpipe_context *sp)
  56 {
  57    unsigned i;
  58
  59    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  60       sp_tile_cache_map_transfers(sp->cbuf_cache[i]);
  61    }
  62
  63    sp_tile_cache_map_transfers(sp->zsbuf_cache);
  64 }
  65
  66
  67 /**
  68  * Unmap any mapped drawing surfaces
  69  */
  70 void
  71 softpipe_unmap_transfers(struct softpipe_context *sp)
  72 {
  73    uint i;
  74
  75    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  76       sp_tile_cache_unmap_transfers(sp->cbuf_cache[i]);
  77    }
  78
  79    sp_tile_cache_unmap_transfers(sp->zsbuf_cache);
  80 }
  81
  82
  83 static void
  84 softpipe_destroy( struct pipe_context *pipe )
  85 {
  86    struct softpipe_context *softpipe = softpipe_context( pipe );
  87    uint i;
  88
  89    if (softpipe->draw)
  90       draw_destroy( softpipe->draw );
  91
  92    softpipe->quad.shade->destroy( softpipe->quad.shade );
  93    softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
  94    softpipe->quad.blend->destroy( softpipe->quad.blend );
  95
  96    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  97       sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
  98       pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
  99    }
 100
 101    sp_destroy_tile_cache(softpipe->zsbuf_cache);
 102    pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
 103
 104    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 105       sp_destroy_tex_tile_cache(softpipe->tex_cache[i]);
 106       pipe_texture_reference(&softpipe->texture[i], NULL);
 107    }
 108
 109    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 110       sp_destroy_tex_tile_cache(softpipe->vertex_tex_cache[i]);
 111       pipe_texture_reference(&softpipe->vertex_textures[i], NULL);
 112    }
 113
 114    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 115       uint j;
 116
 117       for (j = 0; j < PIPE_MAX_CONSTANT_BUFFERS; j++) {
 118          if (softpipe->constants[i][j]) {
 119             pipe_buffer_reference(&softpipe->constants[i][j], NULL);
 120          }
 121       }
 122    }
 123
 124    FREE( softpipe );
 125 }
 126
 127
 128 /**
 129  * if (the texture is being used as a framebuffer surface)
 130  *    return PIPE_REFERENCED_FOR_WRITE
 131  * else if (the texture is a bound texture source)
 132  *    return PIPE_REFERENCED_FOR_READ
 133  * else
 134  *    return PIPE_UNREFERENCED
 135  */
 136 static unsigned int
 137 softpipe_is_texture_referenced( struct pipe_context *pipe,
 138                                 struct pipe_texture *texture,
 139                                 unsigned face, unsigned level)
 140 {
 141    struct softpipe_context *softpipe = softpipe_context( pipe );
 142    unsigned i;
 143
 144    /* check if any of the bound drawing surfaces are this texture */
 145    if (softpipe->dirty_render_cache) {
 146       for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
 147          if (softpipe->framebuffer.cbufs[i] &&
 148              softpipe->framebuffer.cbufs[i]->texture == texture) {
 149             return PIPE_REFERENCED_FOR_WRITE;
 150          }
 151       }
 152       if (softpipe->framebuffer.zsbuf &&
 153           softpipe->framebuffer.zsbuf->texture == texture) {
 154          return PIPE_REFERENCED_FOR_WRITE;
 155       }
 156    }
 157
 158    /* check if any of the tex_cache textures are this texture */
 159    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 160       if (softpipe->tex_cache[i] &&
 161           softpipe->tex_cache[i]->texture == texture)
 162          return PIPE_REFERENCED_FOR_READ;
 163    }
 164    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 165       if (softpipe->vertex_tex_cache[i] &&
 166           softpipe->vertex_tex_cache[i]->texture == texture)
 167          return PIPE_REFERENCED_FOR_READ;
 168    }
 169
 170    return PIPE_UNREFERENCED;
 171 }
 172
 173
 174 static unsigned int
 175 softpipe_is_buffer_referenced( struct pipe_context *pipe,
 176                                struct pipe_buffer *buf)
 177 {
 178    return PIPE_UNREFERENCED;
 179 }
 180
 181
 182 static void
 183 softpipe_render_condition( struct pipe_context *pipe,
 184                            struct pipe_query *query,
 185                            uint mode )
 186 {
 187    struct softpipe_context *softpipe = softpipe_context( pipe );
 188
 189    softpipe->render_cond_query = query;
 190    softpipe->render_cond_mode = mode;
 191 }
 192
 193
 194
 195 struct pipe_context *
 196 softpipe_create_context( struct pipe_screen *screen,
 197                          void *priv )
 198 {
 199    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 200    uint i;
 201
 202    util_init_math();
 203
 204 #ifdef PIPE_ARCH_X86
 205    softpipe->use_sse = !debug_get_bool_option( "GALLIUM_NOSSE", FALSE );
 206 #else
 207    softpipe->use_sse = FALSE;
 208 #endif
 209
 210    softpipe->dump_fs = debug_get_bool_option( "GALLIUM_DUMP_FS", FALSE );
 211    softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
 212
 213    softpipe->pipe.winsys = screen->winsys;
 214    softpipe->pipe.screen = screen;
 215    softpipe->pipe.destroy = softpipe_destroy;
 216    softpipe->pipe.priv = priv;
 217
 218    /* state setters */
 219    softpipe->pipe.create_blend_state = softpipe_create_blend_state;
 220    softpipe->pipe.bind_blend_state   = softpipe_bind_blend_state;
 221    softpipe->pipe.delete_blend_state = softpipe_delete_blend_state;
 222
 223    softpipe->pipe.create_sampler_state = softpipe_create_sampler_state;
 224    softpipe->pipe.bind_fragment_sampler_states  = softpipe_bind_sampler_states;
 225    softpipe->pipe.bind_vertex_sampler_states = softpipe_bind_vertex_sampler_states;
 226    softpipe->pipe.delete_sampler_state = softpipe_delete_sampler_state;
 227
 228    softpipe->pipe.create_depth_stencil_alpha_state = softpipe_create_depth_stencil_state;
 229    softpipe->pipe.bind_depth_stencil_alpha_state   = softpipe_bind_depth_stencil_state;
 230    softpipe->pipe.delete_depth_stencil_alpha_state = softpipe_delete_depth_stencil_state;
 231
 232    softpipe->pipe.create_rasterizer_state = softpipe_create_rasterizer_state;
 233    softpipe->pipe.bind_rasterizer_state   = softpipe_bind_rasterizer_state;
 234    softpipe->pipe.delete_rasterizer_state = softpipe_delete_rasterizer_state;
 235
 236    softpipe->pipe.create_fs_state = softpipe_create_fs_state;
 237    softpipe->pipe.bind_fs_state   = softpipe_bind_fs_state;
 238    softpipe->pipe.delete_fs_state = softpipe_delete_fs_state;
 239
 240    softpipe->pipe.create_vs_state = softpipe_create_vs_state;
 241    softpipe->pipe.bind_vs_state   = softpipe_bind_vs_state;
 242    softpipe->pipe.delete_vs_state = softpipe_delete_vs_state;
 243
 244    softpipe->pipe.create_gs_state = softpipe_create_gs_state;
 245    softpipe->pipe.bind_gs_state   = softpipe_bind_gs_state;
 246    softpipe->pipe.delete_gs_state = softpipe_delete_gs_state;
 247
 248    softpipe->pipe.set_blend_color = softpipe_set_blend_color;
 249    softpipe->pipe.set_stencil_ref = softpipe_set_stencil_ref;
 250    softpipe->pipe.set_clip_state = softpipe_set_clip_state;
 251    softpipe->pipe.set_constant_buffer = softpipe_set_constant_buffer;
 252    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 253    softpipe->pipe.set_polygon_stipple = softpipe_set_polygon_stipple;
 254    softpipe->pipe.set_scissor_state = softpipe_set_scissor_state;
 255    softpipe->pipe.set_fragment_sampler_textures = softpipe_set_sampler_textures;
 256    softpipe->pipe.set_vertex_sampler_textures = softpipe_set_vertex_sampler_textures;
 257    softpipe->pipe.set_viewport_state = softpipe_set_viewport_state;
 258
 259    softpipe->pipe.set_vertex_buffers = softpipe_set_vertex_buffers;
 260    softpipe->pipe.set_vertex_elements = softpipe_set_vertex_elements;
 261
 262    softpipe->pipe.draw_arrays = softpipe_draw_arrays;
 263    softpipe->pipe.draw_elements = softpipe_draw_elements;
 264    softpipe->pipe.draw_range_elements = softpipe_draw_range_elements;
 265    softpipe->pipe.draw_arrays_instanced = softpipe_draw_arrays_instanced;
 266    softpipe->pipe.draw_elements_instanced = softpipe_draw_elements_instanced;
 267
 268    softpipe->pipe.clear = softpipe_clear;
 269    softpipe->pipe.flush = softpipe_flush;
 270
 271    softpipe->pipe.is_texture_referenced = softpipe_is_texture_referenced;
 272    softpipe->pipe.is_buffer_referenced = softpipe_is_buffer_referenced;
 273
 274    softpipe_init_query_funcs( softpipe );
 275
 276    softpipe->pipe.render_condition = softpipe_render_condition;
 277
 278    /*
 279     * Alloc caches for accessing drawing surfaces and textures.
 280     * Must be before quad stage setup!
 281     */
 282    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 283       softpipe->cbuf_cache[i] = sp_create_tile_cache( screen );
 284    softpipe->zsbuf_cache = sp_create_tile_cache( screen );
 285
 286    for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
 287       softpipe->tex_cache[i] = sp_create_tex_tile_cache( screen );
 288    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 289       softpipe->vertex_tex_cache[i] = sp_create_tex_tile_cache(screen);
 290    }
 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
 297
 298    /*
 299     * Create drawing context and plug our rendering stage into it.
 300     */
 301    softpipe->draw = draw_create();
 302    if (!softpipe->draw)
 303       goto fail;
 304
 305    draw_texture_samplers(softpipe->draw,
 306                          PIPE_MAX_VERTEX_SAMPLERS,
 307                          (struct tgsi_sampler **)
 308                             softpipe->tgsi.vert_samplers_list);
 309
 310    if (debug_get_bool_option( "SP_NO_RAST", FALSE ))
 311       softpipe->no_rast = TRUE;
 312
 313    softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
 314    if (!softpipe->vbuf_backend)
 315       goto fail;
 316
 317    softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
 318    if (!softpipe->vbuf)
 319       goto fail;
 320
 321    draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
 322    draw_set_render(softpipe->draw, softpipe->vbuf_backend);
 323
 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    draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
 331
 332    sp_init_surface_functions(softpipe);
 333
 334    return &softpipe->pipe;
 335
 336  fail:
 337    softpipe_destroy(&softpipe->pipe);
 338    return NULL;
 339 }