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"
31 #include "shader/shader_api.h"
32 #include "glapi/glapi.h"
33 #include "st_context.h"
35 #include "st_cb_accum.h"
36 #include "st_cb_bitmap.h"
37 #include "st_cb_blit.h"
38 #include "st_cb_bufferobjects.h"
39 #include "st_cb_clear.h"
40 #include "st_cb_condrender.h"
42 #include "st_cb_drawpixels.h"
43 #include "st_cb_rasterpos.h"
45 #if FEATURE_OES_draw_texture
46 #include "st_cb_drawtex.h"
48 #include "st_cb_eglimage.h"
49 #include "st_cb_fbo.h"
51 #include "st_cb_feedback.h"
53 #include "st_cb_program.h"
54 #include "st_cb_queryobj.h"
55 #include "st_cb_readpixels.h"
56 #include "st_cb_texture.h"
57 #include "st_cb_flush.h"
58 #include "st_cb_strings.h"
61 #include "st_extensions.h"
62 #include "st_gen_mipmap.h"
63 #include "st_program.h"
64 #include "pipe/p_context.h"
65 #include "util/u_inlines.h"
66 #include "util/u_rect.h"
67 #include "draw/draw_context.h"
68 #include "cso_cache/cso_context.h"
72 * Called via ctx->Driver.UpdateState()
74 void st_invalidate_state(GLcontext
* ctx
, GLuint new_state
)
76 struct st_context
*st
= st_context(ctx
);
78 st
->dirty
.mesa
|= new_state
;
79 st
->dirty
.st
|= ST_NEW_MESA
;
81 /* This is the only core Mesa module we depend upon.
82 * No longer use swrast, swsetup, tnl.
84 _vbo_InvalidateState(ctx
, new_state
);
89 * Check for multisample env var override.
94 const char *msaa
= _mesa_getenv("__GL_FSAA_MODE");
101 /** Default method for pipe_context::surface_copy() */
103 st_surface_copy(struct pipe_context
*pipe
,
104 struct pipe_surface
*dst
,
105 unsigned dst_x
, unsigned dst_y
,
106 struct pipe_surface
*src
,
107 unsigned src_x
, unsigned src_y
,
108 unsigned w
, unsigned h
)
110 util_surface_copy(pipe
, FALSE
, dst
, dst_x
, dst_y
, src
, src_x
, src_y
, w
, h
);
114 static struct st_context
*
115 st_create_context_priv( GLcontext
*ctx
, struct pipe_context
*pipe
)
118 struct st_context
*st
= ST_CALLOC_STRUCT( st_context
);
125 /* XXX: this is one-off, per-screen init: */
128 /* state tracker needs the VBO module */
129 _vbo_CreateContext(ctx
);
131 #if FEATURE_feedback || FEATURE_drawpix
132 st
->draw
= draw_create(pipe
); /* for selection/feedback */
134 /* Disable draw options that might convert points/lines to tris, etc.
135 * as that would foul-up feedback/selection mode.
137 draw_wide_line_threshold(st
->draw
, 1000.0f
);
138 draw_wide_point_threshold(st
->draw
, 1000.0f
);
139 draw_enable_line_stipple(st
->draw
, FALSE
);
140 draw_enable_point_sprites(st
->draw
, FALSE
);
146 st
->cso_context
= cso_create_context(pipe
);
152 st_init_generate_mipmap(st
);
155 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++)
156 st
->state
.sampler_list
[i
] = &st
->state
.samplers
[i
];
158 for (i
= 0; i
< 3; i
++) {
159 memset(&st
->velems_util_draw
[i
], 0, sizeof(struct pipe_vertex_element
));
160 st
->velems_util_draw
[i
].src_offset
= i
* 4 * sizeof(float);
161 st
->velems_util_draw
[i
].instance_divisor
= 0;
162 st
->velems_util_draw
[i
].vertex_buffer_index
= 0;
163 st
->velems_util_draw
[i
].src_format
= PIPE_FORMAT_R32G32B32A32_FLOAT
;
166 /* we want all vertex data to be placed in buffer objects */
167 vbo_use_buffer_objects(ctx
);
171 st
->ctx
->FragmentProgram
._MaintainTexEnvProgram
= GL_TRUE
;
173 st
->ctx
->VertexProgram
._MaintainTnlProgram
= GL_TRUE
;
175 st
->pixel_xfer
.cache
= _mesa_new_program_cache();
177 st
->force_msaa
= st_get_msaa();
179 /* GL limits and extensions */
181 st_init_extensions(st
);
183 /* plug in helper driver functions if needed */
184 if (!pipe
->surface_copy
)
185 pipe
->surface_copy
= st_surface_copy
;
191 struct st_context
*st_create_context(struct pipe_context
*pipe
,
192 const __GLcontextModes
*visual
,
193 struct st_context
*share
)
196 GLcontext
*shareCtx
= share
? share
->ctx
: NULL
;
197 struct dd_function_table funcs
;
199 memset(&funcs
, 0, sizeof(funcs
));
200 st_init_driver_functions(&funcs
);
202 ctx
= _mesa_create_context(visual
, shareCtx
, &funcs
, NULL
);
204 /* XXX: need a capability bit in gallium to query if the pipe
205 * driver prefers DP4 or MUL/MAD for vertex transformation.
207 if (debug_get_bool_option("MESA_MVP_DP4", FALSE
))
208 _mesa_set_mvp_with_dp4( ctx
, GL_TRUE
);
210 return st_create_context_priv(ctx
, pipe
);
214 static void st_destroy_context_priv( struct st_context
*st
)
218 #if FEATURE_feedback || FEATURE_drawpix
219 draw_destroy(st
->draw
);
221 st_destroy_atoms( st
);
222 st_destroy_draw( st
);
223 st_destroy_generate_mipmap(st
);
224 #if FEATURE_EXT_framebuffer_blit
227 st_destroy_clear(st
);
229 st_destroy_bitmap(st
);
230 st_destroy_drawpix(st
);
232 #if FEATURE_OES_draw_texture
233 st_destroy_drawtex(st
);
236 for (i
= 0; i
< Elements(st
->state
.sampler_views
); i
++) {
237 pipe_sampler_view_reference(&st
->state
.sampler_views
[i
], NULL
);
240 for (i
= 0; i
< Elements(st
->state
.constants
); i
++) {
241 if (st
->state
.constants
[i
]) {
242 pipe_resource_reference(&st
->state
.constants
[i
], NULL
);
246 if (st
->default_texture
) {
247 st
->ctx
->Driver
.DeleteTexture(st
->ctx
, st
->default_texture
);
248 st
->default_texture
= NULL
;
255 void st_destroy_context( struct st_context
*st
)
257 struct pipe_context
*pipe
= st
->pipe
;
258 struct cso_context
*cso
= st
->cso_context
;
259 GLcontext
*ctx
= st
->ctx
;
262 /* need to unbind and destroy CSO objects before anything else */
263 cso_release_all(st
->cso_context
);
265 st_reference_fragprog(st
, &st
->fp
, NULL
);
266 st_reference_vertprog(st
, &st
->vp
, NULL
);
268 /* release framebuffer surfaces */
269 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
; i
++) {
270 pipe_surface_reference(&st
->state
.framebuffer
.cbufs
[i
], NULL
);
272 pipe_surface_reference(&st
->state
.framebuffer
.zsbuf
, NULL
);
274 _mesa_delete_program_cache(st
->ctx
, st
->pixel_xfer
.cache
);
276 _vbo_DestroyContext(st
->ctx
);
278 _mesa_free_context_data(ctx
);
280 st_destroy_context_priv(st
);
282 cso_destroy_context(cso
);
284 pipe
->destroy( pipe
);
290 void st_init_driver_functions(struct dd_function_table
*functions
)
292 _mesa_init_glsl_driver_functions(functions
);
295 st_init_accum_functions(functions
);
297 #if FEATURE_EXT_framebuffer_blit
298 st_init_blit_functions(functions
);
300 st_init_bufferobject_functions(functions
);
301 st_init_clear_functions(functions
);
303 st_init_bitmap_functions(functions
);
304 st_init_drawpixels_functions(functions
);
305 st_init_rasterpos_functions(functions
);
308 #if FEATURE_OES_draw_texture
309 st_init_drawtex_functions(functions
);
312 st_init_eglimage_functions(functions
);
314 st_init_fbo_functions(functions
);
316 st_init_feedback_functions(functions
);
318 st_init_program_functions(functions
);
320 st_init_query_functions(functions
);
322 st_init_cond_render_functions(functions
);
323 st_init_readpixels_functions(functions
);
324 st_init_texture_functions(functions
);
325 st_init_flush_functions(functions
);
326 st_init_string_functions(functions
);
328 functions
->UpdateState
= st_invalidate_state
;