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