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"
33 #include "main/scissor.h"
34 #include "main/viewport.h"
36 #include "shader/shader_api.h"
37 #include "glapi/glapi.h"
38 #include "st_public.h"
39 #include "st_context.h"
40 #include "st_cb_accum.h"
41 #include "st_cb_bitmap.h"
42 #include "st_cb_blit.h"
43 #include "st_cb_bufferobjects.h"
44 #include "st_cb_clear.h"
46 #include "st_cb_drawpixels.h"
47 #include "st_cb_rasterpos.h"
49 #ifdef FEATURE_OES_draw_texture
50 #include "st_cb_drawtex.h"
52 #include "st_cb_fbo.h"
53 #include "st_cb_get.h"
55 #include "st_cb_feedback.h"
57 #include "st_cb_program.h"
58 #include "st_cb_queryobj.h"
59 #include "st_cb_readpixels.h"
60 #include "st_cb_texture.h"
61 #include "st_cb_flush.h"
62 #include "st_cb_strings.h"
63 #include "st_cb_viewport.h"
66 #include "st_extensions.h"
67 #include "st_gen_mipmap.h"
68 #include "st_program.h"
69 #include "pipe/p_context.h"
70 #include "draw/draw_context.h"
71 #include "cso_cache/cso_cache.h"
72 #include "cso_cache/cso_context.h"
76 * Called via ctx->Driver.UpdateState()
78 void st_invalidate_state(GLcontext
* ctx
, GLuint new_state
)
80 struct st_context
*st
= st_context(ctx
);
82 st
->dirty
.mesa
|= new_state
;
83 st
->dirty
.st
|= ST_NEW_MESA
;
85 /* This is the only core Mesa module we depend upon.
86 * No longer use swrast, swsetup, tnl.
88 _vbo_InvalidateState(ctx
, new_state
);
93 * Check for multisample env var override.
98 const char *msaa
= _mesa_getenv("__GL_FSAA_MODE");
105 static struct st_context
*
106 st_create_context_priv( GLcontext
*ctx
, struct pipe_context
*pipe
)
109 struct st_context
*st
= ST_CALLOC_STRUCT( st_context
);
116 /* state tracker needs the VBO module */
117 _vbo_CreateContext(ctx
);
119 #if FEATURE_feedback || FEATURE_drawpix
120 st
->draw
= draw_create(); /* for selection/feedback */
122 /* Disable draw options that might convert points/lines to tris, etc.
123 * as that would foul-up feedback/selection mode.
125 draw_wide_line_threshold(st
->draw
, 1000.0f
);
126 draw_wide_point_threshold(st
->draw
, 1000.0f
);
127 draw_enable_line_stipple(st
->draw
, FALSE
);
128 draw_enable_point_sprites(st
->draw
, FALSE
);
134 st
->cso_context
= cso_create_context(pipe
);
140 st_init_generate_mipmap(st
);
143 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++)
144 st
->state
.sampler_list
[i
] = &st
->state
.samplers
[i
];
146 /* we want all vertex data to be placed in buffer objects */
147 vbo_use_buffer_objects(ctx
);
151 st
->ctx
->FragmentProgram
._MaintainTexEnvProgram
= GL_TRUE
;
153 st
->ctx
->VertexProgram
._MaintainTnlProgram
= GL_TRUE
;
155 st
->pixel_xfer
.cache
= _mesa_new_program_cache();
157 st
->force_msaa
= st_get_msaa();
159 /* GL limits and extensions */
161 st_init_extensions(st
);
167 struct st_context
*st_create_context(struct pipe_context
*pipe
,
168 const __GLcontextModes
*visual
,
169 struct st_context
*share
)
172 GLcontext
*shareCtx
= share
? share
->ctx
: NULL
;
173 struct dd_function_table funcs
;
175 memset(&funcs
, 0, sizeof(funcs
));
176 st_init_driver_functions(&funcs
);
178 ctx
= _mesa_create_context(visual
, shareCtx
, &funcs
, NULL
);
180 /* XXX: need a capability bit in gallium to query if the pipe
181 * driver prefers DP4 or MUL/MAD for vertex transformation.
183 if (debug_get_bool_option("MESA_MVP_DP4", FALSE
))
184 _mesa_set_mvp_with_dp4( ctx
, GL_TRUE
);
186 return st_create_context_priv(ctx
, pipe
);
190 static void st_destroy_context_priv( struct st_context
*st
)
194 #if FEATURE_feedback || FEATURE_drawpix
195 draw_destroy(st
->draw
);
197 st_destroy_atoms( st
);
198 st_destroy_draw( st
);
199 st_destroy_generate_mipmap(st
);
200 #if FEATURE_EXT_framebuffer_blit
203 st_destroy_clear(st
);
205 st_destroy_bitmap(st
);
206 st_destroy_drawpix(st
);
208 #ifdef FEATURE_OES_draw_texture
209 st_destroy_drawtex(st
);
212 for (i
= 0; i
< Elements(st
->state
.sampler_texture
); i
++) {
213 pipe_texture_reference(&st
->state
.sampler_texture
[i
], NULL
);
216 for (i
= 0; i
< Elements(st
->state
.constants
); i
++) {
217 if (st
->state
.constants
[i
].buffer
) {
218 pipe_buffer_reference(&st
->state
.constants
[i
].buffer
, NULL
);
222 if (st
->default_texture
) {
223 st
->ctx
->Driver
.DeleteTexture(st
->ctx
, st
->default_texture
);
224 st
->default_texture
= NULL
;
231 void st_destroy_context( struct st_context
*st
)
233 struct pipe_context
*pipe
= st
->pipe
;
234 struct cso_context
*cso
= st
->cso_context
;
235 GLcontext
*ctx
= st
->ctx
;
238 /* need to unbind and destroy CSO objects before anything else */
239 cso_release_all(st
->cso_context
);
241 st_reference_fragprog(st
, &st
->fp
, NULL
);
242 st_reference_vertprog(st
, &st
->vp
, NULL
);
244 /* release framebuffer surfaces */
245 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
; i
++) {
246 pipe_surface_reference(&st
->state
.framebuffer
.cbufs
[i
], NULL
);
248 pipe_surface_reference(&st
->state
.framebuffer
.zsbuf
, NULL
);
250 _mesa_delete_program_cache(st
->ctx
, st
->pixel_xfer
.cache
);
252 _vbo_DestroyContext(st
->ctx
);
254 _mesa_free_context_data(ctx
);
256 st_destroy_context_priv(st
);
258 cso_destroy_context(cso
);
260 pipe
->destroy( pipe
);
267 st_make_current(struct st_context
*st
,
268 struct st_framebuffer
*draw
,
269 struct st_framebuffer
*read
)
271 /* Call this periodically to detect when the user has begun using
272 * GL rendering from multiple threads.
274 _glapi_check_multithread();
277 if (!_mesa_make_current(st
->ctx
, &draw
->Base
, &read
->Base
))
280 _mesa_check_init_viewport(st
->ctx
, draw
->InitWidth
, draw
->InitHeight
);
285 return _mesa_make_current(NULL
, NULL
, NULL
);
289 struct st_context
*st_get_current(void)
291 GET_CURRENT_CONTEXT(ctx
);
293 return (ctx
== NULL
) ? NULL
: ctx
->st
;
296 void st_copy_context_state(struct st_context
*dst
,
297 struct st_context
*src
,
300 _mesa_copy_context(dst
->ctx
, src
->ctx
, mask
);
305 st_proc
st_get_proc_address(const char *procname
)
307 return (st_proc
) _glapi_get_proc_address(procname
);
312 void st_init_driver_functions(struct dd_function_table
*functions
)
314 _mesa_init_glsl_driver_functions(functions
);
317 st_init_accum_functions(functions
);
319 #if FEATURE_EXT_framebuffer_blit
320 st_init_blit_functions(functions
);
322 st_init_bufferobject_functions(functions
);
323 st_init_clear_functions(functions
);
325 st_init_bitmap_functions(functions
);
326 st_init_drawpixels_functions(functions
);
327 st_init_rasterpos_functions(functions
);
329 st_init_fbo_functions(functions
);
330 st_init_get_functions(functions
);
332 st_init_feedback_functions(functions
);
334 st_init_program_functions(functions
);
335 #if FEATURE_ARB_occlusion_query
336 st_init_query_functions(functions
);
338 st_init_readpixels_functions(functions
);
339 st_init_texture_functions(functions
);
340 st_init_flush_functions(functions
);
341 st_init_string_functions(functions
);
342 st_init_viewport_functions(functions
);
344 functions
->UpdateState
= st_invalidate_state
;