1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #include "main/imports.h"
29 #include "main/context.h"
30 #include "main/extensions.h"
31 #include "main/matrix.h"
32 #include "main/buffers.h"
34 #include "shader/shader_api.h"
35 #include "st_public.h"
36 #include "st_context.h"
37 #include "st_cb_accum.h"
38 #include "st_cb_bitmap.h"
39 #include "st_cb_blit.h"
40 #include "st_cb_bufferobjects.h"
41 #include "st_cb_clear.h"
42 #include "st_cb_drawpixels.h"
43 #include "st_cb_fbo.h"
44 #include "st_cb_feedback.h"
45 #include "st_cb_program.h"
46 #include "st_cb_queryobj.h"
47 #include "st_cb_rasterpos.h"
48 #include "st_cb_readpixels.h"
49 #include "st_cb_texture.h"
50 #include "st_cb_flush.h"
51 #include "st_cb_strings.h"
54 #include "st_extensions.h"
55 #include "st_gen_mipmap.h"
56 #include "st_program.h"
57 #include "pipe/p_context.h"
58 #include "pipe/p_winsys.h"
59 #include "pipe/p_inlines.h"
60 #include "draw/draw_context.h"
61 #include "cso_cache/cso_cache.h"
62 #include "cso_cache/cso_context.h"
66 * Called via ctx->Driver.UpdateState()
68 void st_invalidate_state(GLcontext
* ctx
, GLuint new_state
)
70 struct st_context
*st
= st_context(ctx
);
72 st
->dirty
.mesa
|= new_state
;
73 st
->dirty
.st
|= ST_NEW_MESA
;
75 /* This is the only core Mesa module we depend upon.
76 * No longer use swrast, swsetup, tnl.
78 _vbo_InvalidateState(ctx
, new_state
);
82 static struct st_context
*
83 st_create_context_priv( GLcontext
*ctx
, struct pipe_context
*pipe
)
86 struct st_context
*st
= CALLOC_STRUCT( st_context
);
93 /* state tracker needs the VBO module */
94 _vbo_CreateContext(ctx
);
96 st
->draw
= draw_create(); /* for selection/feedback */
98 /* Disable draw options that might convert points/lines to tris, etc.
99 * as that would foul-up feedback/selection mode.
101 draw_wide_line_threshold(st
->draw
, 1000.0f
);
102 draw_wide_point_threshold(st
->draw
, 1000.0f
);
103 draw_enable_line_stipple(st
->draw
, FALSE
);
104 draw_enable_point_sprites(st
->draw
, FALSE
);
109 st
->cso_context
= cso_create_context(pipe
);
115 st_init_generate_mipmap(st
);
118 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++)
119 st
->state
.sampler_list
[i
] = &st
->state
.samplers
[i
];
121 /* we want all vertex data to be placed in buffer objects */
122 vbo_use_buffer_objects(ctx
);
126 st
->ctx
->FragmentProgram
._MaintainTexEnvProgram
= GL_TRUE
;
127 st
->ctx
->FragmentProgram
._UseTexEnvProgram
= GL_TRUE
;
129 st
->ctx
->VertexProgram
._MaintainTnlProgram
= GL_TRUE
;
131 st
->pixel_xfer
.cache
= _mesa_new_program_cache();
133 /* GL limits and extensions */
135 st_init_extensions(st
);
141 struct st_context
*st_create_context(struct pipe_context
*pipe
,
142 const __GLcontextModes
*visual
,
143 struct st_context
*share
)
146 GLcontext
*shareCtx
= share
? share
->ctx
: NULL
;
147 struct dd_function_table funcs
;
149 memset(&funcs
, 0, sizeof(funcs
));
150 st_init_driver_functions(&funcs
);
152 ctx
= _mesa_create_context(visual
, shareCtx
, &funcs
, NULL
);
154 return st_create_context_priv(ctx
, pipe
);
158 static void st_destroy_context_priv( struct st_context
*st
)
160 struct pipe_winsys
*ws
= st
->pipe
->winsys
;
163 draw_destroy(st
->draw
);
164 st_destroy_atoms( st
);
165 st_destroy_draw( st
);
166 st_destroy_generate_mipmap(st
);
167 st_destroy_bitmap(st
);
169 st_destroy_clear(st
);
171 _vbo_DestroyContext(st
->ctx
);
173 for (i
= 0; i
< Elements(st
->state
.constants
); i
++) {
174 if (st
->state
.constants
[i
].buffer
) {
175 pipe_buffer_reference(ws
, &st
->state
.constants
[i
].buffer
, NULL
);
179 st
->pipe
->destroy( st
->pipe
);
184 void st_destroy_context( struct st_context
*st
)
186 GLcontext
*ctx
= st
->ctx
;
188 /* need to unbind and destroy CSO objects before anything else */
189 cso_destroy_context(st
->cso_context
);
191 _mesa_delete_program_cache(st
->ctx
, st
->pixel_xfer
.cache
);
193 _mesa_free_context_data(ctx
);
194 st_destroy_context_priv(st
);
199 void st_make_current(struct st_context
*st
,
200 struct st_framebuffer
*draw
,
201 struct st_framebuffer
*read
)
204 GLboolean firstTime
= st
->ctx
->FirstTimeCurrent
;
205 _mesa_make_current(st
->ctx
, &draw
->Base
, &read
->Base
);
206 /* Need to initialize viewport here since draw->Base->Width/Height
207 * will still be zero at this point.
208 * This could be improved, but would require rather extensive work
209 * elsewhere (allocate rb surface storage sooner)
212 GLuint w
= draw
->InitWidth
, h
= draw
->InitHeight
;
213 _mesa_set_viewport(st
->ctx
, 0, 0, w
, h
);
214 _mesa_set_scissor(st
->ctx
, 0, 0, w
, h
);
219 _mesa_make_current(NULL
, NULL
, NULL
);
224 void st_copy_context_state(struct st_context
*dst
,
225 struct st_context
*src
,
228 _mesa_copy_context(dst
->ctx
, src
->ctx
, mask
);
232 void st_init_driver_functions(struct dd_function_table
*functions
)
234 _mesa_init_glsl_driver_functions(functions
);
236 st_init_accum_functions(functions
);
237 st_init_bitmap_functions(functions
);
238 st_init_blit_functions(functions
);
239 st_init_bufferobject_functions(functions
);
240 st_init_clear_functions(functions
);
241 st_init_drawpixels_functions(functions
);
242 st_init_fbo_functions(functions
);
243 st_init_feedback_functions(functions
);
244 st_init_program_functions(functions
);
245 st_init_query_functions(functions
);
246 st_init_rasterpos_functions(functions
);
247 st_init_readpixels_functions(functions
);
248 st_init_texture_functions(functions
);
249 st_init_flush_functions(functions
);
250 st_init_string_functions(functions
);
252 functions
->UpdateState
= st_invalidate_state
;