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 "pipe/p_inlines.h"
  36 #include "util/u_math.h"
  37 #include "util/u_memory.h"
  38 #include "sp_clear.h"
  39 #include "sp_context.h"
  40 #include "sp_flush.h"
  41 #include "sp_prim_setup.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_texture.h"
  47 #include "sp_winsys.h"
  48 #include "sp_query.h"
  49
  50
  51
  52 /**
  53  * Map any drawing surfaces which aren't already mapped
  54  */
  55 void
  56 softpipe_map_surfaces(struct softpipe_context *sp)
  57 {
  58    unsigned i;
  59
  60    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  61       sp_tile_cache_map_surfaces(sp->cbuf_cache[i]);
  62    }
  63
  64    sp_tile_cache_map_surfaces(sp->zsbuf_cache);
  65 }
  66
  67
  68 /**
  69  * Unmap any mapped drawing surfaces
  70  */
  71 void
  72 softpipe_unmap_surfaces(struct softpipe_context *sp)
  73 {
  74    uint i;
  75
  76    for (i = 0; i < sp->framebuffer.nr_cbufs; i++)
  77       sp_flush_tile_cache(sp, sp->cbuf_cache[i]);
  78    sp_flush_tile_cache(sp, sp->zsbuf_cache);
  79
  80    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  81       sp_tile_cache_unmap_surfaces(sp->cbuf_cache[i]);
  82    }
  83    sp_tile_cache_unmap_surfaces(sp->zsbuf_cache);
  84 }
  85
  86
  87 static void softpipe_destroy( struct pipe_context *pipe )
  88 {
  89    struct softpipe_context *softpipe = softpipe_context( pipe );
  90    struct pipe_screen *screen = pipe->screen;
  91    uint i;
  92
  93    if (softpipe->draw)
  94       draw_destroy( softpipe->draw );
  95
  96    for (i = 0; i < SP_NUM_QUAD_THREADS; i++) {
  97       softpipe->quad[i].polygon_stipple->destroy( softpipe->quad[i].polygon_stipple );
  98       softpipe->quad[i].earlyz->destroy( softpipe->quad[i].earlyz );
  99       softpipe->quad[i].shade->destroy( softpipe->quad[i].shade );
 100       softpipe->quad[i].alpha_test->destroy( softpipe->quad[i].alpha_test );
 101       softpipe->quad[i].depth_test->destroy( softpipe->quad[i].depth_test );
 102       softpipe->quad[i].stencil_test->destroy( softpipe->quad[i].stencil_test );
 103       softpipe->quad[i].occlusion->destroy( softpipe->quad[i].occlusion );
 104       softpipe->quad[i].coverage->destroy( softpipe->quad[i].coverage );
 105       softpipe->quad[i].blend->destroy( softpipe->quad[i].blend );
 106       softpipe->quad[i].colormask->destroy( softpipe->quad[i].colormask );
 107       softpipe->quad[i].output->destroy( softpipe->quad[i].output );
 108    }
 109
 110    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 111       sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
 112    sp_destroy_tile_cache(softpipe->zsbuf_cache);
 113
 114    for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
 115       sp_destroy_tile_cache(softpipe->tex_cache[i]);
 116
 117    for (i = 0; i < Elements(softpipe->constants); i++) {
 118       if (softpipe->constants[i].buffer) {
 119          pipe_buffer_reference(screen, &softpipe->constants[i].buffer, NULL);
 120       }
 121    }
 122
 123    FREE( softpipe );
 124 }
 125
 126
 127 struct pipe_context *
 128 softpipe_create( struct pipe_screen *screen,
 129                  struct pipe_winsys *pipe_winsys,
 130                  void *unused )
 131 {
 132    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 133    uint i;
 134
 135    util_init_math();
 136
 137 #ifdef PIPE_ARCH_X86
 138    softpipe->use_sse = !debug_get_bool_option( "GALLIUM_NOSSE", FALSE );
 139 #else
 140    softpipe->use_sse = FALSE;
 141 #endif
 142
 143    softpipe->dump_fs = debug_get_bool_option( "GALLIUM_DUMP_FS", FALSE );
 144
 145    softpipe->pipe.winsys = pipe_winsys;
 146    softpipe->pipe.screen = screen;
 147    softpipe->pipe.destroy = softpipe_destroy;
 148
 149    /* state setters */
 150    softpipe->pipe.create_blend_state = softpipe_create_blend_state;
 151    softpipe->pipe.bind_blend_state   = softpipe_bind_blend_state;
 152    softpipe->pipe.delete_blend_state = softpipe_delete_blend_state;
 153
 154    softpipe->pipe.create_sampler_state = softpipe_create_sampler_state;
 155    softpipe->pipe.bind_sampler_states  = softpipe_bind_sampler_states;
 156    softpipe->pipe.delete_sampler_state = softpipe_delete_sampler_state;
 157
 158    softpipe->pipe.create_depth_stencil_alpha_state = softpipe_create_depth_stencil_state;
 159    softpipe->pipe.bind_depth_stencil_alpha_state   = softpipe_bind_depth_stencil_state;
 160    softpipe->pipe.delete_depth_stencil_alpha_state = softpipe_delete_depth_stencil_state;
 161
 162    softpipe->pipe.create_rasterizer_state = softpipe_create_rasterizer_state;
 163    softpipe->pipe.bind_rasterizer_state   = softpipe_bind_rasterizer_state;
 164    softpipe->pipe.delete_rasterizer_state = softpipe_delete_rasterizer_state;
 165
 166    softpipe->pipe.create_fs_state = softpipe_create_fs_state;
 167    softpipe->pipe.bind_fs_state   = softpipe_bind_fs_state;
 168    softpipe->pipe.delete_fs_state = softpipe_delete_fs_state;
 169
 170    softpipe->pipe.create_vs_state = softpipe_create_vs_state;
 171    softpipe->pipe.bind_vs_state   = softpipe_bind_vs_state;
 172    softpipe->pipe.delete_vs_state = softpipe_delete_vs_state;
 173
 174    softpipe->pipe.set_blend_color = softpipe_set_blend_color;
 175    softpipe->pipe.set_clip_state = softpipe_set_clip_state;
 176    softpipe->pipe.set_constant_buffer = softpipe_set_constant_buffer;
 177    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 178    softpipe->pipe.set_polygon_stipple = softpipe_set_polygon_stipple;
 179    softpipe->pipe.set_scissor_state = softpipe_set_scissor_state;
 180    softpipe->pipe.set_sampler_textures = softpipe_set_sampler_textures;
 181    softpipe->pipe.set_viewport_state = softpipe_set_viewport_state;
 182
 183    softpipe->pipe.set_vertex_buffers = softpipe_set_vertex_buffers;
 184    softpipe->pipe.set_vertex_elements = softpipe_set_vertex_elements;
 185
 186    softpipe->pipe.draw_arrays = softpipe_draw_arrays;
 187    softpipe->pipe.draw_elements = softpipe_draw_elements;
 188    softpipe->pipe.draw_range_elements = softpipe_draw_range_elements;
 189    softpipe->pipe.set_edgeflags = softpipe_set_edgeflags;
 190
 191
 192    softpipe->pipe.clear = softpipe_clear;
 193    softpipe->pipe.flush = softpipe_flush;
 194
 195    softpipe_init_query_funcs( softpipe );
 196    softpipe_init_texture_funcs( softpipe );
 197
 198    /*
 199     * Alloc caches for accessing drawing surfaces and textures.
 200     * Must be before quad stage setup!
 201     */
 202    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 203       softpipe->cbuf_cache[i] = sp_create_tile_cache( screen );
 204    softpipe->zsbuf_cache = sp_create_tile_cache( screen );
 205
 206    for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
 207       softpipe->tex_cache[i] = sp_create_tile_cache( screen );
 208
 209
 210    /* setup quad rendering stages */
 211    for (i = 0; i < SP_NUM_QUAD_THREADS; i++) {
 212       softpipe->quad[i].polygon_stipple = sp_quad_polygon_stipple_stage(softpipe);
 213       softpipe->quad[i].earlyz = sp_quad_earlyz_stage(softpipe);
 214       softpipe->quad[i].shade = sp_quad_shade_stage(softpipe);
 215       softpipe->quad[i].alpha_test = sp_quad_alpha_test_stage(softpipe);
 216       softpipe->quad[i].depth_test = sp_quad_depth_test_stage(softpipe);
 217       softpipe->quad[i].stencil_test = sp_quad_stencil_test_stage(softpipe);
 218       softpipe->quad[i].occlusion = sp_quad_occlusion_stage(softpipe);
 219       softpipe->quad[i].coverage = sp_quad_coverage_stage(softpipe);
 220       softpipe->quad[i].blend = sp_quad_blend_stage(softpipe);
 221       softpipe->quad[i].colormask = sp_quad_colormask_stage(softpipe);
 222       softpipe->quad[i].output = sp_quad_output_stage(softpipe);
 223    }
 224
 225    /* vertex shader samplers */
 226    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 227       softpipe->tgsi.vert_samplers[i].base.get_samples = sp_get_samples_vertex;
 228       softpipe->tgsi.vert_samplers[i].unit = i;
 229       softpipe->tgsi.vert_samplers[i].sp = softpipe;
 230       softpipe->tgsi.vert_samplers[i].cache = softpipe->tex_cache[i];
 231       softpipe->tgsi.vert_samplers_list[i] = &softpipe->tgsi.vert_samplers[i];
 232    }
 233
 234    /* fragment shader samplers */
 235    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 236       softpipe->tgsi.frag_samplers[i].base.get_samples = sp_get_samples_fragment;
 237       softpipe->tgsi.frag_samplers[i].unit = i;
 238       softpipe->tgsi.frag_samplers[i].sp = softpipe;
 239       softpipe->tgsi.frag_samplers[i].cache = softpipe->tex_cache[i];
 240       softpipe->tgsi.frag_samplers_list[i] = &softpipe->tgsi.frag_samplers[i];
 241    }
 242
 243    /*
 244     * Create drawing context and plug our rendering stage into it.
 245     */
 246    softpipe->draw = draw_create();
 247    if (!softpipe->draw)
 248       goto fail;
 249
 250    draw_texture_samplers(softpipe->draw,
 251                          PIPE_MAX_SAMPLERS,
 252                          (struct tgsi_sampler **)
 253                             softpipe->tgsi.vert_samplers_list);
 254
 255    softpipe->setup = sp_draw_render_stage(softpipe);
 256    if (!softpipe->setup)
 257       goto fail;
 258
 259    if (debug_get_bool_option( "SP_NO_RAST", FALSE ))
 260       softpipe->no_rast = TRUE;
 261
 262    if (debug_get_bool_option( "SP_NO_VBUF", FALSE )) {
 263       /* Deprecated path -- vbuf is the intended interface to the draw module:
 264        */
 265       draw_set_rasterize_stage(softpipe->draw, softpipe->setup);
 266    }
 267    else {
 268       sp_init_vbuf(softpipe);
 269    }
 270
 271    /* plug in AA line/point stages */
 272    draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
 273    draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
 274
 275 #if USE_DRAW_STAGE_PSTIPPLE
 276    /* Do polygon stipple w/ texture map + frag prog? */
 277    draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
 278 #endif
 279
 280    sp_init_surface_functions(softpipe);
 281
 282    return &softpipe->pipe;
 283
 284  fail:
 285    softpipe_destroy(&softpipe->pipe);
 286    return NULL;
 287 }
 288