src/gallium/drivers/softpipe/sp_context.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 /* Author:
  29  *    Keith Whitwell <keith@tungstengraphics.com>
  30  */
  31
  32 #include "draw/draw_context.h"
  33 #include "pipe/p_defines.h"
  34 #include "pipe/p_inlines.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_surfaces(struct softpipe_context *sp)
  56 {
  57    unsigned i;
  58
  59    for (i = 0; i < sp->framebuffer.num_cbufs; i++) {
  60       sp_tile_cache_map_surfaces(sp->cbuf_cache[i]);
  61    }
  62
  63    sp_tile_cache_map_surfaces(sp->zsbuf_cache);
  64 }
  65
  66
  67 /**
  68  * Unmap any mapped drawing surfaces
  69  */
  70 void
  71 softpipe_unmap_surfaces(struct softpipe_context *sp)
  72 {
  73    uint i;
  74
  75    for (i = 0; i < sp->framebuffer.num_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.num_cbufs; i++) {
  80       sp_tile_cache_unmap_surfaces(sp->cbuf_cache[i]);
  81    }
  82    sp_tile_cache_unmap_surfaces(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    struct pipe_winsys *ws = pipe->winsys;
  90    uint i;
  91
  92    if (softpipe->draw)
  93       draw_destroy( softpipe->draw );
  94
  95    softpipe->quad.polygon_stipple->destroy( softpipe->quad.polygon_stipple );
  96    softpipe->quad.earlyz->destroy( softpipe->quad.earlyz );
  97    softpipe->quad.shade->destroy( softpipe->quad.shade );
  98    softpipe->quad.alpha_test->destroy( softpipe->quad.alpha_test );
  99    softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
 100    softpipe->quad.stencil_test->destroy( softpipe->quad.stencil_test );
 101    softpipe->quad.occlusion->destroy( softpipe->quad.occlusion );
 102    softpipe->quad.coverage->destroy( softpipe->quad.coverage );
 103    softpipe->quad.blend->destroy( softpipe->quad.blend );
 104    softpipe->quad.colormask->destroy( softpipe->quad.colormask );
 105    softpipe->quad.output->destroy( softpipe->quad.output );
 106
 107    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 108       sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
 109    sp_destroy_tile_cache(softpipe->zsbuf_cache);
 110
 111    for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
 112       sp_destroy_tile_cache(softpipe->tex_cache[i]);
 113
 114    for (i = 0; i < Elements(softpipe->constants); i++) {
 115       if (softpipe->constants[i].buffer) {
 116          winsys_buffer_reference(ws, &softpipe->constants[i].buffer, NULL);
 117       }
 118    }
 119
 120    FREE( softpipe );
 121 }
 122
 123
 124 struct pipe_context *
 125 softpipe_create( struct pipe_screen *screen,
 126                  struct pipe_winsys *pipe_winsys,
 127                  void *unused )
 128 {
 129    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 130    uint i;
 131
 132    util_init_math();
 133
 134 #ifdef PIPE_ARCH_X86
 135    softpipe->use_sse = !debug_get_bool_option( "GALLIUM_NOSSE", FALSE );
 136 #else
 137    softpipe->use_sse = FALSE;
 138 #endif
 139
 140    softpipe->dump_fs = debug_get_bool_option( "GALLIUM_DUMP_FS", FALSE );
 141
 142    softpipe->pipe.winsys = pipe_winsys;
 143    softpipe->pipe.screen = screen;
 144    softpipe->pipe.destroy = softpipe_destroy;
 145
 146    /* state setters */
 147    softpipe->pipe.create_blend_state = softpipe_create_blend_state;
 148    softpipe->pipe.bind_blend_state   = softpipe_bind_blend_state;
 149    softpipe->pipe.delete_blend_state = softpipe_delete_blend_state;
 150
 151    softpipe->pipe.create_sampler_state = softpipe_create_sampler_state;
 152    softpipe->pipe.bind_sampler_states  = softpipe_bind_sampler_states;
 153    softpipe->pipe.delete_sampler_state = softpipe_delete_sampler_state;
 154
 155    softpipe->pipe.create_depth_stencil_alpha_state = softpipe_create_depth_stencil_state;
 156    softpipe->pipe.bind_depth_stencil_alpha_state   = softpipe_bind_depth_stencil_state;
 157    softpipe->pipe.delete_depth_stencil_alpha_state = softpipe_delete_depth_stencil_state;
 158
 159    softpipe->pipe.create_rasterizer_state = softpipe_create_rasterizer_state;
 160    softpipe->pipe.bind_rasterizer_state   = softpipe_bind_rasterizer_state;
 161    softpipe->pipe.delete_rasterizer_state = softpipe_delete_rasterizer_state;
 162
 163    softpipe->pipe.create_fs_state = softpipe_create_fs_state;
 164    softpipe->pipe.bind_fs_state   = softpipe_bind_fs_state;
 165    softpipe->pipe.delete_fs_state = softpipe_delete_fs_state;
 166
 167    softpipe->pipe.create_vs_state = softpipe_create_vs_state;
 168    softpipe->pipe.bind_vs_state   = softpipe_bind_vs_state;
 169    softpipe->pipe.delete_vs_state = softpipe_delete_vs_state;
 170
 171    softpipe->pipe.set_blend_color = softpipe_set_blend_color;
 172    softpipe->pipe.set_clip_state = softpipe_set_clip_state;
 173    softpipe->pipe.set_constant_buffer = softpipe_set_constant_buffer;
 174    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 175    softpipe->pipe.set_polygon_stipple = softpipe_set_polygon_stipple;
 176    softpipe->pipe.set_scissor_state = softpipe_set_scissor_state;
 177    softpipe->pipe.set_sampler_textures = softpipe_set_sampler_textures;
 178    softpipe->pipe.set_viewport_state = softpipe_set_viewport_state;
 179
 180    softpipe->pipe.set_vertex_buffers = softpipe_set_vertex_buffers;
 181    softpipe->pipe.set_vertex_elements = softpipe_set_vertex_elements;
 182
 183    softpipe->pipe.draw_arrays = softpipe_draw_arrays;
 184    softpipe->pipe.draw_elements = softpipe_draw_elements;
 185    softpipe->pipe.draw_range_elements = softpipe_draw_range_elements;
 186    softpipe->pipe.set_edgeflags = softpipe_set_edgeflags;
 187
 188
 189    softpipe->pipe.clear = softpipe_clear;
 190    softpipe->pipe.flush = softpipe_flush;
 191
 192    softpipe_init_query_funcs( softpipe );
 193    softpipe_init_texture_funcs( softpipe );
 194
 195    /*
 196     * Alloc caches for accessing drawing surfaces and textures.
 197     * Must be before quad stage setup!
 198     */
 199    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 200       softpipe->cbuf_cache[i] = sp_create_tile_cache( screen );
 201    softpipe->zsbuf_cache = sp_create_tile_cache( screen );
 202
 203    for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
 204       softpipe->tex_cache[i] = sp_create_tile_cache( screen );
 205
 206
 207    /* setup quad rendering stages */
 208    softpipe->quad.polygon_stipple = sp_quad_polygon_stipple_stage(softpipe);
 209    softpipe->quad.earlyz = sp_quad_earlyz_stage(softpipe);
 210    softpipe->quad.shade = sp_quad_shade_stage(softpipe);
 211    softpipe->quad.alpha_test = sp_quad_alpha_test_stage(softpipe);
 212    softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
 213    softpipe->quad.stencil_test = sp_quad_stencil_test_stage(softpipe);
 214    softpipe->quad.occlusion = sp_quad_occlusion_stage(softpipe);
 215    softpipe->quad.coverage = sp_quad_coverage_stage(softpipe);
 216    softpipe->quad.blend = sp_quad_blend_stage(softpipe);
 217    softpipe->quad.colormask = sp_quad_colormask_stage(softpipe);
 218    softpipe->quad.output = sp_quad_output_stage(softpipe);
 219
 220    /*
 221     * Create drawing context and plug our rendering stage into it.
 222     */
 223    softpipe->draw = draw_create();
 224    if (!softpipe->draw)
 225       goto fail;
 226
 227    softpipe->setup = sp_draw_render_stage(softpipe);
 228    if (!softpipe->setup)
 229       goto fail;
 230
 231    if (debug_get_bool_option( "SP_NO_RAST", FALSE ))
 232       softpipe->no_rast = TRUE;
 233
 234    if (debug_get_bool_option( "SP_NO_VBUF", FALSE )) {
 235       /* Deprecated path -- vbuf is the intended interface to the draw module:
 236        */
 237       draw_set_rasterize_stage(softpipe->draw, softpipe->setup);
 238    }
 239    else {
 240       sp_init_vbuf(softpipe);
 241    }
 242
 243    /* plug in AA line/point stages */
 244    draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
 245    draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
 246
 247 #if USE_DRAW_STAGE_PSTIPPLE
 248    /* Do polygon stipple w/ texture map + frag prog? */
 249    draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
 250 #endif
 251
 252    sp_init_surface_functions(softpipe);
 253
 254    return &softpipe->pipe;
 255
 256  fail:
 257    softpipe_destroy(&softpipe->pipe);
 258    return NULL;
 259 }