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 "sp_clear.h"
  39 #include "sp_context.h"
  40 #include "sp_flush.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_tex_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_transfers(struct softpipe_context *sp)
  57 {
  58    unsigned i;
  59
  60    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  61       sp_tile_cache_map_transfers(sp->cbuf_cache[i]);
  62    }
  63
  64    sp_tile_cache_map_transfers(sp->zsbuf_cache);
  65 }
  66
  67
  68 /**
  69  * Unmap any mapped drawing surfaces
  70  */
  71 void
  72 softpipe_unmap_transfers(struct softpipe_context *sp)
  73 {
  74    uint i;
  75
  76    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  77       sp_tile_cache_unmap_transfers(sp->cbuf_cache[i]);
  78    }
  79
  80    sp_tile_cache_unmap_transfers(sp->zsbuf_cache);
  81 }
  82
  83
  84 static void 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    sp_destroy_tile_cache(softpipe->zsbuf_cache);
  99
 100    for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
 101       sp_destroy_tex_tile_cache(softpipe->tex_cache[i]);
 102
 103    for (i = 0; i < Elements(softpipe->constants); i++) {
 104       if (softpipe->constants[i].buffer) {
 105          pipe_buffer_reference(&softpipe->constants[i].buffer, NULL);
 106       }
 107    }
 108
 109    FREE( softpipe );
 110 }
 111
 112 static unsigned int
 113 softpipe_is_texture_referenced( struct pipe_context *pipe,
 114                                 struct pipe_texture *texture,
 115                                 unsigned face, unsigned level)
 116 {
 117    struct softpipe_context *softpipe = softpipe_context( pipe );
 118    unsigned i;
 119
 120    if(softpipe->dirty_render_cache) {
 121       for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
 122          if(softpipe->framebuffer.cbufs[i] &&
 123             softpipe->framebuffer.cbufs[i]->texture == texture)
 124             return PIPE_REFERENCED_FOR_WRITE;
 125       }
 126       if(softpipe->framebuffer.zsbuf &&
 127          softpipe->framebuffer.zsbuf->texture == texture)
 128          return PIPE_REFERENCED_FOR_WRITE;
 129    }
 130
 131    /* FIXME: we also need to do the same for the texture cache */
 132
 133    return PIPE_UNREFERENCED;
 134 }
 135
 136 static unsigned int
 137 softpipe_is_buffer_referenced( struct pipe_context *pipe,
 138                                struct pipe_buffer *buf)
 139 {
 140    return PIPE_UNREFERENCED;
 141 }
 142
 143 struct pipe_context *
 144 softpipe_create( struct pipe_screen *screen )
 145 {
 146    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 147    uint i;
 148
 149    util_init_math();
 150
 151 #ifdef PIPE_ARCH_X86
 152    softpipe->use_sse = !debug_get_bool_option( "GALLIUM_NOSSE", FALSE );
 153 #else
 154    softpipe->use_sse = FALSE;
 155 #endif
 156
 157    softpipe->dump_fs = debug_get_bool_option( "GALLIUM_DUMP_FS", FALSE );
 158
 159    softpipe->pipe.winsys = screen->winsys;
 160    softpipe->pipe.screen = screen;
 161    softpipe->pipe.destroy = softpipe_destroy;
 162
 163    /* state setters */
 164    softpipe->pipe.create_blend_state = softpipe_create_blend_state;
 165    softpipe->pipe.bind_blend_state   = softpipe_bind_blend_state;
 166    softpipe->pipe.delete_blend_state = softpipe_delete_blend_state;
 167
 168    softpipe->pipe.create_sampler_state = softpipe_create_sampler_state;
 169    softpipe->pipe.bind_sampler_states  = softpipe_bind_sampler_states;
 170    softpipe->pipe.delete_sampler_state = softpipe_delete_sampler_state;
 171
 172    softpipe->pipe.create_depth_stencil_alpha_state = softpipe_create_depth_stencil_state;
 173    softpipe->pipe.bind_depth_stencil_alpha_state   = softpipe_bind_depth_stencil_state;
 174    softpipe->pipe.delete_depth_stencil_alpha_state = softpipe_delete_depth_stencil_state;
 175
 176    softpipe->pipe.create_rasterizer_state = softpipe_create_rasterizer_state;
 177    softpipe->pipe.bind_rasterizer_state   = softpipe_bind_rasterizer_state;
 178    softpipe->pipe.delete_rasterizer_state = softpipe_delete_rasterizer_state;
 179
 180    softpipe->pipe.create_fs_state = softpipe_create_fs_state;
 181    softpipe->pipe.bind_fs_state   = softpipe_bind_fs_state;
 182    softpipe->pipe.delete_fs_state = softpipe_delete_fs_state;
 183
 184    softpipe->pipe.create_vs_state = softpipe_create_vs_state;
 185    softpipe->pipe.bind_vs_state   = softpipe_bind_vs_state;
 186    softpipe->pipe.delete_vs_state = softpipe_delete_vs_state;
 187
 188    softpipe->pipe.set_blend_color = softpipe_set_blend_color;
 189    softpipe->pipe.set_clip_state = softpipe_set_clip_state;
 190    softpipe->pipe.set_constant_buffer = softpipe_set_constant_buffer;
 191    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 192    softpipe->pipe.set_polygon_stipple = softpipe_set_polygon_stipple;
 193    softpipe->pipe.set_scissor_state = softpipe_set_scissor_state;
 194    softpipe->pipe.set_sampler_textures = softpipe_set_sampler_textures;
 195    softpipe->pipe.set_viewport_state = softpipe_set_viewport_state;
 196
 197    softpipe->pipe.set_vertex_buffers = softpipe_set_vertex_buffers;
 198    softpipe->pipe.set_vertex_elements = softpipe_set_vertex_elements;
 199
 200    softpipe->pipe.draw_arrays = softpipe_draw_arrays;
 201    softpipe->pipe.draw_elements = softpipe_draw_elements;
 202    softpipe->pipe.draw_range_elements = softpipe_draw_range_elements;
 203    softpipe->pipe.set_edgeflags = softpipe_set_edgeflags;
 204
 205
 206    softpipe->pipe.clear = softpipe_clear;
 207    softpipe->pipe.flush = softpipe_flush;
 208
 209    softpipe->pipe.is_texture_referenced = softpipe_is_texture_referenced;
 210    softpipe->pipe.is_buffer_referenced = softpipe_is_buffer_referenced;
 211
 212    softpipe_init_query_funcs( softpipe );
 213    softpipe_init_texture_funcs( softpipe );
 214
 215    /*
 216     * Alloc caches for accessing drawing surfaces and textures.
 217     * Must be before quad stage setup!
 218     */
 219    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 220       softpipe->cbuf_cache[i] = sp_create_tile_cache( screen );
 221    softpipe->zsbuf_cache = sp_create_tile_cache( screen );
 222
 223    for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
 224       softpipe->tex_cache[i] = sp_create_tex_tile_cache( screen );
 225
 226
 227    /* setup quad rendering stages */
 228       softpipe->quad.shade = sp_quad_shade_stage(softpipe);
 229       softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
 230       softpipe->quad.blend = sp_quad_blend_stage(softpipe);
 231
 232
 233    /*
 234     * Create drawing context and plug our rendering stage into it.
 235     */
 236    softpipe->draw = draw_create();
 237    if (!softpipe->draw)
 238       goto fail;
 239
 240    draw_texture_samplers(softpipe->draw,
 241                          PIPE_MAX_SAMPLERS,
 242                          (struct tgsi_sampler **)
 243                             softpipe->tgsi.vert_samplers_list);
 244
 245    if (debug_get_bool_option( "SP_NO_RAST", FALSE ))
 246       softpipe->no_rast = TRUE;
 247
 248    softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
 249    if (!softpipe->vbuf_backend)
 250       goto fail;
 251
 252    softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
 253    if (!softpipe->vbuf)
 254       goto fail;
 255
 256    draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
 257    draw_set_render(softpipe->draw, softpipe->vbuf_backend);
 258
 259
 260
 261    /* plug in AA line/point stages */
 262    draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
 263    draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
 264
 265    /* Do polygon stipple w/ texture map + frag prog? */
 266    draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
 267
 268    sp_init_surface_functions(softpipe);
 269
 270    return &softpipe->pipe;
 271
 272  fail:
 273    softpipe_destroy(&softpipe->pipe);
 274    return NULL;
 275 }
 276