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 "pipe/p_defines.h"
  35 #include "util/u_math.h"
  36 #include "util/u_memory.h"
  37 #include "sp_clear.h"
  38 #include "sp_context.h"
  39 #include "sp_flush.h"
  40 #include "sp_prim_setup.h"
  41 #include "sp_prim_vbuf.h"
  42 #include "sp_state.h"
  43 #include "sp_surface.h"
  44 #include "sp_tile_cache.h"
  45 #include "sp_texture.h"
  46 #include "sp_winsys.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_flush_tile_cache(sp, sp->cbuf_cache[i]);
  77    sp_flush_tile_cache(sp, sp->zsbuf_cache);
  78
  79    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  80       sp_tile_cache_unmap_transfers(sp->cbuf_cache[i]);
  81    }
  82    sp_tile_cache_unmap_transfers(sp->zsbuf_cache);
  83 }
  84
  85
  86 static void 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    for (i = 0; i < SP_NUM_QUAD_THREADS; i++) {
  95       softpipe->quad[i].polygon_stipple->destroy( softpipe->quad[i].polygon_stipple );
  96       softpipe->quad[i].earlyz->destroy( softpipe->quad[i].earlyz );
  97       softpipe->quad[i].shade->destroy( softpipe->quad[i].shade );
  98       softpipe->quad[i].alpha_test->destroy( softpipe->quad[i].alpha_test );
  99       softpipe->quad[i].depth_test->destroy( softpipe->quad[i].depth_test );
 100       softpipe->quad[i].stencil_test->destroy( softpipe->quad[i].stencil_test );
 101       softpipe->quad[i].occlusion->destroy( softpipe->quad[i].occlusion );
 102       softpipe->quad[i].coverage->destroy( softpipe->quad[i].coverage );
 103       softpipe->quad[i].blend->destroy( softpipe->quad[i].blend );
 104       softpipe->quad[i].colormask->destroy( softpipe->quad[i].colormask );
 105       softpipe->quad[i].output->destroy( softpipe->quad[i].output );
 106    }
 107
 108    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 109       sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
 110    sp_destroy_tile_cache(softpipe->zsbuf_cache);
 111
 112    for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
 113       sp_destroy_tile_cache(softpipe->tex_cache[i]);
 114
 115    for (i = 0; i < Elements(softpipe->constants); i++) {
 116       if (softpipe->constants[i].buffer) {
 117          pipe_buffer_reference(&softpipe->constants[i].buffer, NULL);
 118       }
 119    }
 120
 121    FREE( softpipe );
 122 }
 123
 124 static unsigned int
 125 softpipe_is_texture_referenced( struct pipe_context *pipe,
 126                                 struct pipe_texture *texture,
 127                                 unsigned face, unsigned level)
 128 {
 129    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
 130 }
 131
 132 static unsigned int
 133 softpipe_is_buffer_referenced( struct pipe_context *pipe,
 134                                struct pipe_buffer *buf)
 135 {
 136    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
 137 }
 138
 139 struct pipe_context *
 140 softpipe_create( struct pipe_screen *screen )
 141 {
 142    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 143    uint i;
 144
 145    util_init_math();
 146
 147 #ifdef PIPE_ARCH_X86
 148    softpipe->use_sse = !debug_get_bool_option( "GALLIUM_NOSSE", FALSE );
 149 #else
 150    softpipe->use_sse = FALSE;
 151 #endif
 152
 153    softpipe->dump_fs = debug_get_bool_option( "GALLIUM_DUMP_FS", FALSE );
 154
 155    softpipe->pipe.winsys = screen->winsys;
 156    softpipe->pipe.screen = screen;
 157    softpipe->pipe.destroy = softpipe_destroy;
 158
 159    /* state setters */
 160    softpipe->pipe.create_blend_state = softpipe_create_blend_state;
 161    softpipe->pipe.bind_blend_state   = softpipe_bind_blend_state;
 162    softpipe->pipe.delete_blend_state = softpipe_delete_blend_state;
 163
 164    softpipe->pipe.create_sampler_state = softpipe_create_sampler_state;
 165    softpipe->pipe.bind_sampler_states  = softpipe_bind_sampler_states;
 166    softpipe->pipe.delete_sampler_state = softpipe_delete_sampler_state;
 167
 168    softpipe->pipe.create_depth_stencil_alpha_state = softpipe_create_depth_stencil_state;
 169    softpipe->pipe.bind_depth_stencil_alpha_state   = softpipe_bind_depth_stencil_state;
 170    softpipe->pipe.delete_depth_stencil_alpha_state = softpipe_delete_depth_stencil_state;
 171
 172    softpipe->pipe.create_rasterizer_state = softpipe_create_rasterizer_state;
 173    softpipe->pipe.bind_rasterizer_state   = softpipe_bind_rasterizer_state;
 174    softpipe->pipe.delete_rasterizer_state = softpipe_delete_rasterizer_state;
 175
 176    softpipe->pipe.create_fs_state = softpipe_create_fs_state;
 177    softpipe->pipe.bind_fs_state   = softpipe_bind_fs_state;
 178    softpipe->pipe.delete_fs_state = softpipe_delete_fs_state;
 179
 180    softpipe->pipe.create_vs_state = softpipe_create_vs_state;
 181    softpipe->pipe.bind_vs_state   = softpipe_bind_vs_state;
 182    softpipe->pipe.delete_vs_state = softpipe_delete_vs_state;
 183
 184    softpipe->pipe.set_blend_color = softpipe_set_blend_color;
 185    softpipe->pipe.set_clip_state = softpipe_set_clip_state;
 186    softpipe->pipe.set_constant_buffer = softpipe_set_constant_buffer;
 187    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 188    softpipe->pipe.set_polygon_stipple = softpipe_set_polygon_stipple;
 189    softpipe->pipe.set_scissor_state = softpipe_set_scissor_state;
 190    softpipe->pipe.set_sampler_textures = softpipe_set_sampler_textures;
 191    softpipe->pipe.set_viewport_state = softpipe_set_viewport_state;
 192
 193    softpipe->pipe.set_vertex_buffers = softpipe_set_vertex_buffers;
 194    softpipe->pipe.set_vertex_elements = softpipe_set_vertex_elements;
 195
 196    softpipe->pipe.draw_arrays = softpipe_draw_arrays;
 197    softpipe->pipe.draw_elements = softpipe_draw_elements;
 198    softpipe->pipe.draw_range_elements = softpipe_draw_range_elements;
 199    softpipe->pipe.set_edgeflags = softpipe_set_edgeflags;
 200
 201
 202    softpipe->pipe.clear = softpipe_clear;
 203    softpipe->pipe.flush = softpipe_flush;
 204
 205    softpipe->pipe.is_texture_referenced = softpipe_is_texture_referenced;
 206    softpipe->pipe.is_buffer_referenced = softpipe_is_buffer_referenced;
 207
 208    softpipe_init_query_funcs( softpipe );
 209    softpipe_init_texture_funcs( softpipe );
 210
 211    /*
 212     * Alloc caches for accessing drawing surfaces and textures.
 213     * Must be before quad stage setup!
 214     */
 215    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 216       softpipe->cbuf_cache[i] = sp_create_tile_cache( screen );
 217    softpipe->zsbuf_cache = sp_create_tile_cache( screen );
 218
 219    for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
 220       softpipe->tex_cache[i] = sp_create_tile_cache( screen );
 221
 222
 223    /* setup quad rendering stages */
 224    for (i = 0; i < SP_NUM_QUAD_THREADS; i++) {
 225       softpipe->quad[i].polygon_stipple = sp_quad_polygon_stipple_stage(softpipe);
 226       softpipe->quad[i].earlyz = sp_quad_earlyz_stage(softpipe);
 227       softpipe->quad[i].shade = sp_quad_shade_stage(softpipe);
 228       softpipe->quad[i].alpha_test = sp_quad_alpha_test_stage(softpipe);
 229       softpipe->quad[i].depth_test = sp_quad_depth_test_stage(softpipe);
 230       softpipe->quad[i].stencil_test = sp_quad_stencil_test_stage(softpipe);
 231       softpipe->quad[i].occlusion = sp_quad_occlusion_stage(softpipe);
 232       softpipe->quad[i].coverage = sp_quad_coverage_stage(softpipe);
 233       softpipe->quad[i].blend = sp_quad_blend_stage(softpipe);
 234       softpipe->quad[i].colormask = sp_quad_colormask_stage(softpipe);
 235       softpipe->quad[i].output = sp_quad_output_stage(softpipe);
 236    }
 237
 238    /* vertex shader samplers */
 239    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 240       softpipe->tgsi.vert_samplers[i].base.get_samples = sp_get_samples_vertex;
 241       softpipe->tgsi.vert_samplers[i].unit = i;
 242       softpipe->tgsi.vert_samplers[i].sp = softpipe;
 243       softpipe->tgsi.vert_samplers[i].cache = softpipe->tex_cache[i];
 244       softpipe->tgsi.vert_samplers_list[i] = &softpipe->tgsi.vert_samplers[i];
 245    }
 246
 247    /* fragment shader samplers */
 248    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 249       softpipe->tgsi.frag_samplers[i].base.get_samples = sp_get_samples_fragment;
 250       softpipe->tgsi.frag_samplers[i].unit = i;
 251       softpipe->tgsi.frag_samplers[i].sp = softpipe;
 252       softpipe->tgsi.frag_samplers[i].cache = softpipe->tex_cache[i];
 253       softpipe->tgsi.frag_samplers_list[i] = &softpipe->tgsi.frag_samplers[i];
 254    }
 255
 256    /*
 257     * Create drawing context and plug our rendering stage into it.
 258     */
 259    softpipe->draw = draw_create();
 260    if (!softpipe->draw)
 261       goto fail;
 262
 263    draw_texture_samplers(softpipe->draw,
 264                          PIPE_MAX_SAMPLERS,
 265                          (struct tgsi_sampler **)
 266                             softpipe->tgsi.vert_samplers_list);
 267
 268    softpipe->setup = sp_draw_render_stage(softpipe);
 269    if (!softpipe->setup)
 270       goto fail;
 271
 272    if (debug_get_bool_option( "SP_NO_RAST", FALSE ))
 273       softpipe->no_rast = TRUE;
 274
 275    if (debug_get_bool_option( "SP_NO_VBUF", FALSE )) {
 276       /* Deprecated path -- vbuf is the intended interface to the draw module:
 277        */
 278       draw_set_rasterize_stage(softpipe->draw, softpipe->setup);
 279    }
 280    else {
 281       sp_init_vbuf(softpipe);
 282    }
 283
 284    /* plug in AA line/point stages */
 285    draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
 286    draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
 287
 288 #if USE_DRAW_STAGE_PSTIPPLE
 289    /* Do polygon stipple w/ texture map + frag prog? */
 290    draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
 291 #endif
 292
 293    sp_init_surface_functions(softpipe);
 294
 295    return &softpipe->pipe;
 296
 297  fail:
 298    softpipe_destroy(&softpipe->pipe);
 299    return NULL;
 300 }
 301