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 /** shared by all contexts */
  51 unsigned llvmpipe_variant_count;
  52
  53
  54 static void llvmpipe_destroy( struct pipe_context *pipe )
  55 {
  56    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
  57    uint i, j;
  58
  59    lp_print_counters();
  60
  61    if (llvmpipe->blitter) {
  62       util_blitter_destroy(llvmpipe->blitter);
  63    }
  64
  65    /* This will also destroy llvmpipe->setup:
  66     */
  67    if (llvmpipe->draw)
  68       draw_destroy( llvmpipe->draw );
  69
  70    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  71       pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
  72    }
  73
  74    pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
  75
  76    for (i = 0; i < Elements(llvmpipe->sampler_views[0]); i++) {
  77       pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_FRAGMENT][i], NULL);
  78    }
  79
  80    for (i = 0; i < Elements(llvmpipe->sampler_views[0]); i++) {
  81       pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_VERTEX][i], NULL);
  82    }
  83
  84    for (i = 0; i < Elements(llvmpipe->constants); i++) {
  85       for (j = 0; j < Elements(llvmpipe->constants[i]); j++) {
  86          pipe_resource_reference(&llvmpipe->constants[i][j], NULL);
  87       }
  88    }
  89
  90    for (i = 0; i < llvmpipe->num_vertex_buffers; i++) {
  91       pipe_resource_reference(&llvmpipe->vertex_buffer[i].buffer, NULL);
  92    }
  93
  94    lp_delete_setup_variants(llvmpipe);
  95
  96    align_free( llvmpipe );
  97 }
  98
  99 static void
 100 do_flush( struct pipe_context *pipe,
 101           struct pipe_fence_handle **fence)
 102 {
 103    llvmpipe_flush(pipe, fence, __FUNCTION__);
 104 }
 105
 106
 107 static void
 108 llvmpipe_render_condition ( struct pipe_context *pipe,
 109                             struct pipe_query *query,
 110                             uint mode )
 111 {
 112    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
 113
 114    llvmpipe->render_cond_query = query;
 115    llvmpipe->render_cond_mode = mode;
 116 }
 117
 118 struct pipe_context *
 119 llvmpipe_create_context( struct pipe_screen *screen, void *priv )
 120 {
 121    struct llvmpipe_context *llvmpipe;
 122
 123    llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
 124    if (!llvmpipe)
 125       return NULL;
 126
 127    util_init_math();
 128
 129    memset(llvmpipe, 0, sizeof *llvmpipe);
 130
 131    make_empty_list(&llvmpipe->fs_variants_list);
 132
 133    make_empty_list(&llvmpipe->setup_variants_list);
 134
 135
 136    llvmpipe->pipe.screen = screen;
 137    llvmpipe->pipe.priv = priv;
 138
 139    /* Init the pipe context methods */
 140    llvmpipe->pipe.destroy = llvmpipe_destroy;
 141    llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
 142    llvmpipe->pipe.clear = llvmpipe_clear;
 143    llvmpipe->pipe.flush = do_flush;
 144
 145    llvmpipe->pipe.render_condition = llvmpipe_render_condition;
 146
 147    llvmpipe_init_blend_funcs(llvmpipe);
 148    llvmpipe_init_clip_funcs(llvmpipe);
 149    llvmpipe_init_draw_funcs(llvmpipe);
 150    llvmpipe_init_sampler_funcs(llvmpipe);
 151    llvmpipe_init_query_funcs( llvmpipe );
 152    llvmpipe_init_vertex_funcs(llvmpipe);
 153    llvmpipe_init_so_funcs(llvmpipe);
 154    llvmpipe_init_fs_funcs(llvmpipe);
 155    llvmpipe_init_vs_funcs(llvmpipe);
 156    llvmpipe_init_gs_funcs(llvmpipe);
 157    llvmpipe_init_rasterizer_funcs(llvmpipe);
 158    llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
 159    llvmpipe_init_surface_functions(llvmpipe);
 160
 161    /*
 162     * Create drawing context and plug our rendering stage into it.
 163     */
 164    llvmpipe->draw = draw_create(&llvmpipe->pipe);
 165    if (!llvmpipe->draw)
 166       goto fail;
 167
 168    /* FIXME: devise alternative to draw_texture_samplers */
 169
 170    llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
 171                                       llvmpipe->draw );
 172    if (!llvmpipe->setup)
 173       goto fail;
 174
 175    llvmpipe->blitter = util_blitter_create(&llvmpipe->pipe);
 176    if (!llvmpipe->blitter) {
 177       goto fail;
 178    }
 179
 180    /* must be done before installing Draw stages */
 181    util_blitter_cache_all_shaders(llvmpipe->blitter);
 182
 183    /* plug in AA line/point stages */
 184    draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
 185    draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
 186    draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
 187
 188    /* convert points and lines into triangles:
 189     * (otherwise, draw points and lines natively)
 190     */
 191    draw_wide_point_sprites(llvmpipe->draw, FALSE);
 192    draw_enable_point_sprites(llvmpipe->draw, FALSE);
 193    draw_wide_point_threshold(llvmpipe->draw, 10000.0);
 194    draw_wide_line_threshold(llvmpipe->draw, 10000.0);
 195
 196    lp_reset_counters();
 197
 198    return &llvmpipe->pipe;
 199
 200  fail:
 201    llvmpipe_destroy(&llvmpipe->pipe);
 202    return NULL;
 203 }
 204