st_context.c revision c6499a741c99394e81d1d86ffd066f3d9749875c 
1/**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#include "main/imports.h"
29#include "main/context.h"
30#include "main/extensions.h"
31#include "vbo/vbo.h"
32#include "st_public.h"
33#include "st_context.h"
34#include "st_cb_accum.h"
35#include "st_cb_bufferobjects.h"
36#include "st_cb_clear.h"
37#include "st_cb_drawpixels.h"
38#include "st_cb_fbo.h"
39#include "st_cb_feedback.h"
40#include "st_cb_queryobj.h"
41#include "st_cb_rasterpos.h"
42#include "st_cb_readpixels.h"
43#include "st_cb_texture.h"
44#include "st_cb_flush.h"
45#include "st_cb_strings.h"
46#include "st_atom.h"
47#include "st_draw.h"
48#include "st_extensions.h"
49#include "st_program.h"
50#include "pipe/p_context.h"
51#include "pipe/draw/draw_context.h"
52#include "pipe/cso_cache/cso_cache.h"
53
54
55/**
56 * Called via ctx->Driver.UpdateState()
57 */
58void st_invalidate_state(GLcontext * ctx, GLuint new_state)
59{
60   struct st_context *st = st_context(ctx);
61
62   st->dirty.mesa |= new_state;
63   st->dirty.st |= ST_NEW_MESA;
64
65   /* This is the only core Mesa module we depend upon.
66    * No longer use swrast, swsetup, tnl.
67    */
68   _vbo_InvalidateState(ctx, new_state);
69}
70
71
72static struct st_context *
73st_create_context_priv( GLcontext *ctx, struct pipe_context *pipe )
74{
75   struct st_context *st = CALLOC_STRUCT( st_context );
76
77   ctx->st = st;
78
79   st->ctx = ctx;
80   st->pipe = pipe;
81
82   /* state tracker needs the VBO module */
83   _vbo_CreateContext(ctx);
84
85   st->draw = draw_create(); /* for selection/feedback */
86
87   st->dirty.mesa = ~0;
88   st->dirty.st = ~0;
89
90   st->cache = cso_cache_create();
91
92   st_init_atoms( st );
93   st_init_draw( st );
94
95   /* we want all vertex data to be placed in buffer objects */
96   vbo_use_buffer_objects(ctx);
97
98   /* Need these flags:
99    */
100   st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
101   st->ctx->FragmentProgram._UseTexEnvProgram = GL_TRUE;
102
103   st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
104
105   st->haveFramebufferRegions = GL_TRUE;
106
107   st->pixel_xfer.cache = _mesa_new_program_cache();
108
109   /* GL limits and extensions */
110   st_init_limits(st);
111   st_init_extensions(st);
112
113   return st;
114}
115
116
117struct st_context *st_create_context(struct pipe_context *pipe,
118                                     const __GLcontextModes *visual,
119                                     struct st_context *share)
120{
121   GLcontext *ctx;
122   GLcontext *shareCtx = share ? share->ctx : NULL;
123   struct dd_function_table funcs;
124
125   memset(&funcs, 0, sizeof(funcs));
126   st_init_driver_functions(&funcs);
127
128   ctx = _mesa_create_context(visual, shareCtx, &funcs, NULL);
129
130   return st_create_context_priv(ctx, pipe);
131}
132
133
134static void st_destroy_context_priv( struct st_context *st )
135{
136   draw_destroy(st->draw);
137   st_destroy_atoms( st );
138   st_destroy_draw( st );
139
140   _vbo_DestroyContext(st->ctx);
141
142   cso_cache_delete( st->cache );
143
144   _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
145
146   st->pipe->destroy( st->pipe );
147   free( st );
148}
149
150
151void st_destroy_context( struct st_context *st )
152{
153   GLcontext *ctx = st->ctx;
154   _mesa_free_context_data(ctx);
155   st_destroy_context_priv(st);
156   free(ctx);
157}
158
159
160void st_make_current(struct st_context *st,
161                     struct st_framebuffer *draw,
162                     struct st_framebuffer *read)
163{
164   if (st) {
165      _mesa_make_current(st->ctx, &draw->Base, &read->Base);
166   }
167   else {
168      _mesa_make_current(NULL, NULL, NULL);
169   }
170}
171
172
173void st_copy_context_state(struct st_context *dst,
174                           struct st_context *src,
175                           uint mask)
176{
177   _mesa_copy_context(dst->ctx, src->ctx, mask);
178}
179
180
181void st_init_driver_functions(struct dd_function_table *functions)
182{
183   st_init_accum_functions(functions);
184   st_init_bufferobject_functions(functions);
185   st_init_clear_functions(functions);
186   st_init_drawpixels_functions(functions);
187   st_init_fbo_functions(functions);
188   st_init_feedback_functions(functions);
189   st_init_program_functions(functions);
190   st_init_query_functions(functions);
191   st_init_rasterpos_functions(functions);
192   st_init_readpixels_functions(functions);
193   st_init_texture_functions(functions);
194   st_init_flush_functions(functions);
195   st_init_string_functions(functions);
196
197   functions->UpdateState = st_invalidate_state;
198}
199