src/gallium/drivers/llvmpipe/lp_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_inlines.h"
  37 #include "util/u_math.h"
  38 #include "util/u_memory.h"
  39 #include "util/u_simple_list.h"
  40 #include "lp_clear.h"
  41 #include "lp_context.h"
  42 #include "lp_flush.h"
  43 #include "lp_perf.h"
  44 #include "lp_state.h"
  45 #include "lp_surface.h"
  46 #include "lp_query.h"
  47 #include "lp_setup.h"
  48
  49 static void llvmpipe_destroy( struct pipe_context *pipe )
  50 {
  51    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
  52    uint i, j;
  53
  54    lp_print_counters();
  55
  56    /* This will also destroy llvmpipe->setup:
  57     */
  58    if (llvmpipe->draw)
  59       draw_destroy( llvmpipe->draw );
  60
  61    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  62       pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
  63    }
  64
  65    pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
  66
  67    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
  68       pipe_sampler_view_reference(&llvmpipe->fragment_sampler_views[i], NULL);
  69    }
  70
  71    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
  72       pipe_sampler_view_reference(&llvmpipe->vertex_sampler_views[i], NULL);
  73    }
  74
  75    for (i = 0; i < Elements(llvmpipe->constants); i++) {
  76       for (j = 0; j < Elements(llvmpipe->constants[i]); j++) {
  77          pipe_resource_reference(&llvmpipe->constants[i][j], NULL);
  78       }
  79    }
  80
  81    align_free( llvmpipe );
  82 }
  83
  84
  85 struct pipe_context *
  86 llvmpipe_create_context( struct pipe_screen *screen, void *priv )
  87 {
  88    struct llvmpipe_context *llvmpipe;
  89
  90    llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
  91    if (!llvmpipe)
  92       return NULL;
  93
  94    util_init_math();
  95
  96    memset(llvmpipe, 0, sizeof *llvmpipe);
  97
  98    make_empty_list(&llvmpipe->fs_variants_list);
  99
 100    llvmpipe->pipe.winsys = screen->winsys;
 101    llvmpipe->pipe.screen = screen;
 102    llvmpipe->pipe.priv = priv;
 103
 104    /* Init the pipe context methods */
 105    llvmpipe->pipe.destroy = llvmpipe_destroy;
 106    llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
 107    llvmpipe->pipe.clear = llvmpipe_clear;
 108    llvmpipe->pipe.flush = llvmpipe_flush;
 109
 110    llvmpipe_init_blend_funcs(llvmpipe);
 111    llvmpipe_init_clip_funcs(llvmpipe);
 112    llvmpipe_init_draw_funcs(llvmpipe);
 113    llvmpipe_init_sampler_funcs(llvmpipe);
 114    llvmpipe_init_query_funcs( llvmpipe );
 115    llvmpipe_init_vertex_funcs(llvmpipe);
 116    llvmpipe_init_fs_funcs(llvmpipe);
 117    llvmpipe_init_vs_funcs(llvmpipe);
 118    llvmpipe_init_gs_funcs(llvmpipe);
 119    llvmpipe_init_rasterizer_funcs(llvmpipe);
 120    llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
 121    llvmpipe_init_surface_functions(llvmpipe);
 122
 123    /*
 124     * Create drawing context and plug our rendering stage into it.
 125     */
 126    llvmpipe->draw = draw_create(&llvmpipe->pipe);
 127    if (!llvmpipe->draw)
 128       goto fail;
 129
 130    /* FIXME: devise alternative to draw_texture_samplers */
 131
 132    if (debug_get_bool_option( "LP_NO_RAST", FALSE ))
 133       llvmpipe->no_rast = TRUE;
 134
 135    llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
 136                                       llvmpipe->draw );
 137    if (!llvmpipe->setup)
 138       goto fail;
 139
 140    /* plug in AA line/point stages */
 141    draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
 142    draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
 143    draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
 144
 145    /* convert points and lines into triangles: */
 146    draw_wide_point_threshold(llvmpipe->draw, 0.0);
 147    draw_wide_line_threshold(llvmpipe->draw, 0.0);
 148
 149 #if USE_DRAW_STAGE_PSTIPPLE
 150    /* Do polygon stipple w/ texture map + frag prog? */
 151    draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
 152 #endif
 153
 154    lp_reset_counters();
 155
 156    return &llvmpipe->pipe;
 157
 158  fail:
 159    llvmpipe_destroy(&llvmpipe->pipe);
 160    return NULL;
 161 }
 162