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 "lp_clear.h"
  40 #include "lp_context.h"
  41 #include "lp_flush.h"
  42 #include "lp_perf.h"
  43 #include "lp_state.h"
  44 #include "lp_surface.h"
  45 #include "lp_query.h"
  46 #include "lp_setup.h"
  47
  48 static void llvmpipe_destroy( struct pipe_context *pipe )
  49 {
  50    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
  51    uint i;
  52
  53    lp_print_counters();
  54
  55    /* This will also destroy llvmpipe->setup:
  56     */
  57    if (llvmpipe->draw)
  58       draw_destroy( llvmpipe->draw );
  59
  60    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  61       pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
  62    }
  63
  64    pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
  65
  66    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
  67       pipe_sampler_view_reference(&llvmpipe->fragment_sampler_views[i], NULL);
  68    }
  69
  70    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
  71       pipe_sampler_view_reference(&llvmpipe->vertex_sampler_views[i], NULL);
  72    }
  73
  74    for (i = 0; i < Elements(llvmpipe->constants); i++) {
  75       if (llvmpipe->constants[i]) {
  76          pipe_resource_reference(&llvmpipe->constants[i], NULL);
  77       }
  78    }
  79
  80    align_free( llvmpipe );
  81 }
  82
  83
  84 struct pipe_context *
  85 llvmpipe_create_context( struct pipe_screen *screen, void *priv )
  86 {
  87    struct llvmpipe_context *llvmpipe;
  88
  89    llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
  90    if (!llvmpipe)
  91       return NULL;
  92
  93    util_init_math();
  94
  95    memset(llvmpipe, 0, sizeof *llvmpipe);
  96
  97    llvmpipe->pipe.winsys = screen->winsys;
  98    llvmpipe->pipe.screen = screen;
  99    llvmpipe->pipe.priv = priv;
 100    llvmpipe->pipe.destroy = llvmpipe_destroy;
 101
 102    /* state setters */
 103    llvmpipe->pipe.create_rasterizer_state = llvmpipe_create_rasterizer_state;
 104    llvmpipe->pipe.bind_rasterizer_state   = llvmpipe_bind_rasterizer_state;
 105    llvmpipe->pipe.delete_rasterizer_state = llvmpipe_delete_rasterizer_state;
 106
 107    llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
 108
 109    llvmpipe->pipe.clear = llvmpipe_clear;
 110    llvmpipe->pipe.flush = llvmpipe_flush;
 111
 112    llvmpipe_init_blend_funcs(llvmpipe);
 113    llvmpipe_init_clip_funcs(llvmpipe);
 114    llvmpipe_init_draw_funcs(llvmpipe);
 115    llvmpipe_init_sampler_funcs(llvmpipe);
 116    llvmpipe_init_query_funcs( llvmpipe );
 117    llvmpipe_init_vertex_funcs(llvmpipe);
 118    llvmpipe_init_fs_funcs(llvmpipe);
 119    llvmpipe_init_vs_funcs(llvmpipe);
 120    llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
 121
 122    /*
 123     * Create drawing context and plug our rendering stage into it.
 124     */
 125    llvmpipe->draw = draw_create(&llvmpipe->pipe);
 126    if (!llvmpipe->draw)
 127       goto fail;
 128
 129    /* FIXME: devise alternative to draw_texture_samplers */
 130
 131    if (debug_get_bool_option( "LP_NO_RAST", FALSE ))
 132       llvmpipe->no_rast = TRUE;
 133
 134    llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
 135                                       llvmpipe->draw );
 136    if (!llvmpipe->setup)
 137       goto fail;
 138
 139    /* plug in AA line/point stages */
 140    draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
 141    draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
 142    draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
 143
 144    /* convert points and lines into triangles: */
 145    draw_wide_point_threshold(llvmpipe->draw, 0.0);
 146    draw_wide_line_threshold(llvmpipe->draw, 0.0);
 147
 148 #if USE_DRAW_STAGE_PSTIPPLE
 149    /* Do polygon stipple w/ texture map + frag prog? */
 150    draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
 151 #endif
 152
 153    lp_init_surface_functions(llvmpipe);
 154
 155    lp_reset_counters();
 156
 157    return &llvmpipe->pipe;
 158
 159  fail:
 160    llvmpipe_destroy(&llvmpipe->pipe);
 161    return NULL;
 162 }
 163