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_math.h"
  37 #include "util/u_memory.h"
  38 #include "lp_clear.h"
  39 #include "lp_context.h"
  40 #include "lp_flush.h"
  41 #include "lp_state.h"
  42 #include "lp_surface.h"
  43 #include "lp_texture.h"
  44 #include "lp_winsys.h"
  45 #include "lp_query.h"
  46 #include "lp_setup.h"
  47
  48
  49
  50
  51
  52 static void llvmpipe_destroy( struct pipe_context *pipe )
  53 {
  54    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
  55    uint i;
  56
  57    /* This will also destroy llvmpipe->setup:
  58     */
  59    if (llvmpipe->draw)
  60       draw_destroy( llvmpipe->draw );
  61
  62    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  63       pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
  64    }
  65
  66    pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
  67
  68    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
  69       pipe_texture_reference(&llvmpipe->texture[i], NULL);
  70    }
  71
  72    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
  73       pipe_texture_reference(&llvmpipe->vertex_textures[i], NULL);
  74    }
  75
  76    for (i = 0; i < Elements(llvmpipe->constants); i++) {
  77       if (llvmpipe->constants[i].buffer) {
  78          pipe_buffer_reference(&llvmpipe->constants[i].buffer, NULL);
  79       }
  80    }
  81
  82    align_free( llvmpipe );
  83 }
  84
  85 static unsigned int
  86 llvmpipe_is_texture_referenced( struct pipe_context *pipe,
  87                                 struct pipe_texture *texture,
  88                                 unsigned face, unsigned level)
  89 {
  90    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
  91
  92    return lp_setup_is_texture_referenced(llvmpipe->setup, texture);
  93 }
  94
  95 static unsigned int
  96 llvmpipe_is_buffer_referenced( struct pipe_context *pipe,
  97                                struct pipe_buffer *buf)
  98 {
  99    return PIPE_UNREFERENCED;
 100 }
 101
 102 struct pipe_context *
 103 llvmpipe_create( struct pipe_screen *screen )
 104 {
 105    struct llvmpipe_context *llvmpipe;
 106
 107    llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
 108    if (!llvmpipe)
 109       return NULL;
 110
 111    util_init_math();
 112
 113    memset(llvmpipe, 0, sizeof *llvmpipe);
 114
 115    llvmpipe->pipe.winsys = screen->winsys;
 116    llvmpipe->pipe.screen = screen;
 117    llvmpipe->pipe.destroy = llvmpipe_destroy;
 118
 119    /* state setters */
 120    llvmpipe->pipe.create_blend_state = llvmpipe_create_blend_state;
 121    llvmpipe->pipe.bind_blend_state   = llvmpipe_bind_blend_state;
 122    llvmpipe->pipe.delete_blend_state = llvmpipe_delete_blend_state;
 123
 124    llvmpipe->pipe.create_sampler_state = llvmpipe_create_sampler_state;
 125    llvmpipe->pipe.bind_fragment_sampler_states  = llvmpipe_bind_sampler_states;
 126    llvmpipe->pipe.bind_vertex_sampler_states  = llvmpipe_bind_vertex_sampler_states;
 127    llvmpipe->pipe.delete_sampler_state = llvmpipe_delete_sampler_state;
 128
 129    llvmpipe->pipe.create_depth_stencil_alpha_state = llvmpipe_create_depth_stencil_state;
 130    llvmpipe->pipe.bind_depth_stencil_alpha_state   = llvmpipe_bind_depth_stencil_state;
 131    llvmpipe->pipe.delete_depth_stencil_alpha_state = llvmpipe_delete_depth_stencil_state;
 132
 133    llvmpipe->pipe.create_rasterizer_state = llvmpipe_create_rasterizer_state;
 134    llvmpipe->pipe.bind_rasterizer_state   = llvmpipe_bind_rasterizer_state;
 135    llvmpipe->pipe.delete_rasterizer_state = llvmpipe_delete_rasterizer_state;
 136
 137    llvmpipe->pipe.create_fs_state = llvmpipe_create_fs_state;
 138    llvmpipe->pipe.bind_fs_state   = llvmpipe_bind_fs_state;
 139    llvmpipe->pipe.delete_fs_state = llvmpipe_delete_fs_state;
 140
 141    llvmpipe->pipe.create_vs_state = llvmpipe_create_vs_state;
 142    llvmpipe->pipe.bind_vs_state   = llvmpipe_bind_vs_state;
 143    llvmpipe->pipe.delete_vs_state = llvmpipe_delete_vs_state;
 144
 145    llvmpipe->pipe.set_blend_color = llvmpipe_set_blend_color;
 146    llvmpipe->pipe.set_clip_state = llvmpipe_set_clip_state;
 147    llvmpipe->pipe.set_constant_buffer = llvmpipe_set_constant_buffer;
 148    llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
 149    llvmpipe->pipe.set_polygon_stipple = llvmpipe_set_polygon_stipple;
 150    llvmpipe->pipe.set_scissor_state = llvmpipe_set_scissor_state;
 151    llvmpipe->pipe.set_fragment_sampler_textures = llvmpipe_set_sampler_textures;
 152    llvmpipe->pipe.set_vertex_sampler_textures = llvmpipe_set_vertex_sampler_textures;
 153    llvmpipe->pipe.set_viewport_state = llvmpipe_set_viewport_state;
 154
 155    llvmpipe->pipe.set_vertex_buffers = llvmpipe_set_vertex_buffers;
 156    llvmpipe->pipe.set_vertex_elements = llvmpipe_set_vertex_elements;
 157
 158    llvmpipe->pipe.draw_arrays = llvmpipe_draw_arrays;
 159    llvmpipe->pipe.draw_elements = llvmpipe_draw_elements;
 160    llvmpipe->pipe.draw_range_elements = llvmpipe_draw_range_elements;
 161
 162    llvmpipe->pipe.clear = llvmpipe_clear;
 163    llvmpipe->pipe.flush = llvmpipe_flush;
 164
 165    llvmpipe->pipe.is_texture_referenced = llvmpipe_is_texture_referenced;
 166    llvmpipe->pipe.is_buffer_referenced = llvmpipe_is_buffer_referenced;
 167
 168    llvmpipe_init_query_funcs( llvmpipe );
 169    llvmpipe_init_texture_funcs( llvmpipe );
 170
 171    /*
 172     * Create drawing context and plug our rendering stage into it.
 173     */
 174    llvmpipe->draw = draw_create();
 175    if (!llvmpipe->draw)
 176       goto fail;
 177
 178    /* FIXME: devise alternative to draw_texture_samplers */
 179
 180    if (debug_get_bool_option( "LP_NO_RAST", FALSE ))
 181       llvmpipe->no_rast = TRUE;
 182
 183    llvmpipe->setup = lp_setup_create( screen,
 184                                       llvmpipe->draw );
 185    if (!llvmpipe->setup)
 186       goto fail;
 187
 188    /* plug in AA line/point stages */
 189    draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
 190    draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
 191
 192 #if USE_DRAW_STAGE_PSTIPPLE
 193    /* Do polygon stipple w/ texture map + frag prog? */
 194    draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
 195 #endif
 196
 197    lp_init_surface_functions(llvmpipe);
 198
 199    return &llvmpipe->pipe;
 200
 201  fail:
 202    llvmpipe_destroy(&llvmpipe->pipe);
 203    return NULL;
 204 }
 205