src/gallium/drivers/llvmpipe/lp_context.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 VMware, Inc.
   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 VMWARE 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 <keithw@vmware.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 static void llvmpipe_destroy( struct pipe_context *pipe )
  51 {
  52    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
  53    uint i, j;
  54
  55    lp_print_counters();
  56
  57    if (llvmpipe->blitter) {
  58       util_blitter_destroy(llvmpipe->blitter);
  59    }
  60
  61    /* This will also destroy llvmpipe->setup:
  62     */
  63    if (llvmpipe->draw)
  64       draw_destroy( llvmpipe->draw );
  65
  66    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  67       pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
  68    }
  69
  70    pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
  71
  72    for (i = 0; i < Elements(llvmpipe->sampler_views[0]); i++) {
  73       pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_FRAGMENT][i], NULL);
  74    }
  75
  76    for (i = 0; i < Elements(llvmpipe->sampler_views[0]); i++) {
  77       pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_VERTEX][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_GEOMETRY][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].buffer, 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    LLVMContextDispose(llvmpipe->context);
  97    llvmpipe->context = NULL;
  98
  99    align_free( llvmpipe );
 100 }
 101
 102 static void
 103 do_flush( struct pipe_context *pipe,
 104           struct pipe_fence_handle **fence,
 105           unsigned flags)
 106 {
 107    llvmpipe_flush(pipe, fence, __FUNCTION__);
 108 }
 109
 110
 111 static void
 112 llvmpipe_render_condition ( struct pipe_context *pipe,
 113                             struct pipe_query *query,
 114                             boolean condition,
 115                             uint mode )
 116 {
 117    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
 118
 119    llvmpipe->render_cond_query = query;
 120    llvmpipe->render_cond_mode = mode;
 121    llvmpipe->render_cond_cond = condition;
 122 }
 123
 124 struct pipe_context *
 125 llvmpipe_create_context( struct pipe_screen *screen, void *priv )
 126 {
 127    struct llvmpipe_context *llvmpipe;
 128
 129    llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
 130    if (!llvmpipe)
 131       return NULL;
 132
 133    util_init_math();
 134
 135    memset(llvmpipe, 0, sizeof *llvmpipe);
 136
 137    make_empty_list(&llvmpipe->fs_variants_list);
 138
 139    make_empty_list(&llvmpipe->setup_variants_list);
 140
 141
 142    llvmpipe->pipe.screen = screen;
 143    llvmpipe->pipe.priv = priv;
 144
 145    /* Init the pipe context methods */
 146    llvmpipe->pipe.destroy = llvmpipe_destroy;
 147    llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
 148    llvmpipe->pipe.clear = llvmpipe_clear;
 149    llvmpipe->pipe.flush = do_flush;
 150
 151    llvmpipe->pipe.render_condition = llvmpipe_render_condition;
 152
 153    llvmpipe_init_blend_funcs(llvmpipe);
 154    llvmpipe_init_clip_funcs(llvmpipe);
 155    llvmpipe_init_draw_funcs(llvmpipe);
 156    llvmpipe_init_sampler_funcs(llvmpipe);
 157    llvmpipe_init_query_funcs( llvmpipe );
 158    llvmpipe_init_vertex_funcs(llvmpipe);
 159    llvmpipe_init_so_funcs(llvmpipe);
 160    llvmpipe_init_fs_funcs(llvmpipe);
 161    llvmpipe_init_vs_funcs(llvmpipe);
 162    llvmpipe_init_gs_funcs(llvmpipe);
 163    llvmpipe_init_rasterizer_funcs(llvmpipe);
 164    llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
 165    llvmpipe_init_surface_functions(llvmpipe);
 166
 167    llvmpipe->context = LLVMContextCreate();
 168    if (!llvmpipe->context)
 169       goto fail;
 170
 171    /*
 172     * Create drawing context and plug our rendering stage into it.
 173     */
 174    llvmpipe->draw = draw_create(&llvmpipe->pipe);
 175    if (!llvmpipe->draw)
 176       goto fail;
 177
 178    /* FIXME: devise alternative to draw_texture_samplers */
 179
 180    llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
 181                                       llvmpipe->draw );
 182    if (!llvmpipe->setup)
 183       goto fail;
 184
 185    llvmpipe->blitter = util_blitter_create(&llvmpipe->pipe);
 186    if (!llvmpipe->blitter) {
 187       goto fail;
 188    }
 189
 190    /* must be done before installing Draw stages */
 191    util_blitter_cache_all_shaders(llvmpipe->blitter);
 192
 193    /* plug in AA line/point stages */
 194    draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
 195    draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
 196    draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
 197
 198    /* convert points and lines into triangles:
 199     * (otherwise, draw points and lines natively)
 200     */
 201    draw_wide_point_sprites(llvmpipe->draw, FALSE);
 202    draw_enable_point_sprites(llvmpipe->draw, FALSE);
 203    draw_wide_point_threshold(llvmpipe->draw, 10000.0);
 204    draw_wide_line_threshold(llvmpipe->draw, 10000.0);
 205
 206    lp_reset_counters();
 207
 208    return &llvmpipe->pipe;
 209
 210  fail:
 211    llvmpipe_destroy(&llvmpipe->pipe);
 212    return NULL;
 213 }
 214