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
  50 DEBUG_GET_ONCE_BOOL_OPTION(lp_no_rast, "LP_NO_RAST", FALSE)
  51
  52
  53 static void llvmpipe_destroy( struct pipe_context *pipe )
  54 {
  55    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
  56    uint i, j;
  57
  58    lp_print_counters();
  59
  60    /* This will also destroy llvmpipe->setup:
  61     */
  62    if (llvmpipe->draw)
  63       draw_destroy( llvmpipe->draw );
  64
  65    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  66       pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
  67    }
  68
  69    pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
  70
  71    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
  72       pipe_sampler_view_reference(&llvmpipe->fragment_sampler_views[i], NULL);
  73    }
  74
  75    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
  76       pipe_sampler_view_reference(&llvmpipe->vertex_sampler_views[i], NULL);
  77    }
  78
  79    for (i = 0; i < Elements(llvmpipe->constants); i++) {
  80       for (j = 0; j < Elements(llvmpipe->constants[i]); j++) {
  81          pipe_resource_reference(&llvmpipe->constants[i][j], NULL);
  82       }
  83    }
  84
  85    align_free( llvmpipe );
  86 }
  87
  88 static void
  89 do_flush( struct pipe_context *pipe,
  90           unsigned flags,
  91           struct pipe_fence_handle **fence)
  92 {
  93    llvmpipe_flush(pipe, flags, fence, __FUNCTION__);
  94 }
  95
  96
  97 struct pipe_context *
  98 llvmpipe_create_context( struct pipe_screen *screen, void *priv )
  99 {
 100    struct llvmpipe_context *llvmpipe;
 101
 102    llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
 103    if (!llvmpipe)
 104       return NULL;
 105
 106    util_init_math();
 107
 108    memset(llvmpipe, 0, sizeof *llvmpipe);
 109
 110    make_empty_list(&llvmpipe->fs_variants_list);
 111
 112    llvmpipe->pipe.winsys = screen->winsys;
 113    llvmpipe->pipe.screen = screen;
 114    llvmpipe->pipe.priv = priv;
 115
 116    /* Init the pipe context methods */
 117    llvmpipe->pipe.destroy = llvmpipe_destroy;
 118    llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
 119    llvmpipe->pipe.clear = llvmpipe_clear;
 120    llvmpipe->pipe.flush = do_flush;
 121
 122    llvmpipe_init_blend_funcs(llvmpipe);
 123    llvmpipe_init_clip_funcs(llvmpipe);
 124    llvmpipe_init_draw_funcs(llvmpipe);
 125    llvmpipe_init_sampler_funcs(llvmpipe);
 126    llvmpipe_init_query_funcs( llvmpipe );
 127    llvmpipe_init_vertex_funcs(llvmpipe);
 128    llvmpipe_init_so_funcs(llvmpipe);
 129    llvmpipe_init_fs_funcs(llvmpipe);
 130    llvmpipe_init_vs_funcs(llvmpipe);
 131    llvmpipe_init_gs_funcs(llvmpipe);
 132    llvmpipe_init_rasterizer_funcs(llvmpipe);
 133    llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
 134    llvmpipe_init_surface_functions(llvmpipe);
 135
 136    /*
 137     * Create drawing context and plug our rendering stage into it.
 138     */
 139    llvmpipe->draw = draw_create(&llvmpipe->pipe);
 140    if (!llvmpipe->draw)
 141       goto fail;
 142
 143    /* FIXME: devise alternative to draw_texture_samplers */
 144
 145    if (debug_get_option_lp_no_rast())
 146       llvmpipe->no_rast = TRUE;
 147
 148    llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
 149                                       llvmpipe->draw );
 150    if (!llvmpipe->setup)
 151       goto fail;
 152
 153    /* plug in AA line/point stages */
 154    draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
 155    draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
 156    draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
 157
 158    /* convert points and lines into triangles:
 159     * (otherwise, draw points and lines natively)
 160     */
 161    draw_wide_point_threshold(llvmpipe->draw, 10000.0);
 162    draw_wide_line_threshold(llvmpipe->draw, 10000.0);
 163
 164 #if USE_DRAW_STAGE_PSTIPPLE
 165    /* Do polygon stipple w/ texture map + frag prog? */
 166    draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
 167 #endif
 168
 169    lp_reset_counters();
 170
 171    return &llvmpipe->pipe;
 172
 173  fail:
 174    llvmpipe_destroy(&llvmpipe->pipe);
 175    return NULL;
 176 }
 177