1 /**************************************************************************
3 * Copyright 2008 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 **************************************************************************/
29 #include "pipe/p_screen.h"
30 #include "pipe/p_context.h"
31 #include "pipe/p_shader_tokens.h"
32 #include "util/u_inlines.h"
33 #include "cso_cache/cso_context.h"
34 #include "util/u_math.h"
35 #include "util/u_memory.h"
36 #include "util/u_simple_shaders.h"
37 #include "trace/tr_screen.h"
38 #include "trace/tr_context.h"
40 #include "st_device.h"
41 #include "st_winsys.h"
45 st_device_really_destroy(struct st_device
*st_dev
)
48 /* FIXME: Don't really destroy until we keep track of every single
49 * reference or we end up causing a segmentation fault every time
52 st_dev
->screen
->destroy(st_dev
->screen
);
61 st_device_reference(struct st_device
**ptr
, struct st_device
*st_dev
)
63 struct st_device
*old_dev
= *ptr
;
65 if (pipe_reference(&(*ptr
)->reference
, &st_dev
->reference
))
66 st_device_really_destroy(old_dev
);
72 st_device_destroy(struct st_device
*st_dev
)
74 st_device_reference(&st_dev
, NULL
);
78 static struct st_device
*
79 st_device_create_from_st_winsys(const struct st_winsys
*st_ws
)
81 struct st_device
*st_dev
;
83 if(!st_ws
->screen_create
)
86 st_dev
= CALLOC_STRUCT(st_device
);
90 pipe_reference_init(&st_dev
->reference
, 1);
91 st_dev
->st_ws
= st_ws
;
93 st_dev
->real_screen
= st_ws
->screen_create();
94 if(!st_dev
->real_screen
) {
95 st_device_destroy(st_dev
);
99 st_dev
->screen
= trace_screen_create(st_dev
->real_screen
);
100 if(!st_dev
->screen
) {
101 st_device_destroy(st_dev
);
110 st_device_create(boolean hardware
) {
112 return st_device_create_from_st_winsys(&st_hardpipe_winsys
);
114 return st_device_create_from_st_winsys(&st_softpipe_winsys
);
119 st_context_destroy(struct st_context
*st_ctx
)
124 struct st_device
*st_dev
= st_ctx
->st_dev
;
127 cso_delete_vertex_shader(st_ctx
->cso
, st_ctx
->vs
);
128 cso_delete_fragment_shader(st_ctx
->cso
, st_ctx
->fs
);
130 cso_destroy_context(st_ctx
->cso
);
134 st_ctx
->pipe
->destroy(st_ctx
->pipe
);
136 for(i
= 0; i
< PIPE_MAX_SAMPLERS
; ++i
)
137 pipe_texture_reference(&st_ctx
->fragment_sampler_textures
[i
], NULL
);
138 for(i
= 0; i
< PIPE_MAX_VERTEX_SAMPLERS
; ++i
)
139 pipe_texture_reference(&st_ctx
->vertex_sampler_textures
[i
], NULL
);
140 pipe_texture_reference(&st_ctx
->default_texture
, NULL
);
144 st_device_reference(&st_dev
, NULL
);
150 st_context_create(struct st_device
*st_dev
)
152 struct st_context
*st_ctx
;
154 st_ctx
= CALLOC_STRUCT(st_context
);
158 st_device_reference(&st_ctx
->st_dev
, st_dev
);
160 st_ctx
->pipe
= st_dev
->screen
->context_create(st_dev
->screen
, NULL
);
162 st_context_destroy(st_ctx
);
166 st_ctx
->cso
= cso_create_context(st_ctx
->pipe
);
168 st_context_destroy(st_ctx
);
172 /* disabled blending/masking */
174 struct pipe_blend_state blend
;
175 memset(&blend
, 0, sizeof(blend
));
176 blend
.rt
[0].rgb_src_factor
= PIPE_BLENDFACTOR_ONE
;
177 blend
.rt
[0].alpha_src_factor
= PIPE_BLENDFACTOR_ONE
;
178 blend
.rt
[0].rgb_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
179 blend
.rt
[0].alpha_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
180 blend
.rt
[0].colormask
= PIPE_MASK_RGBA
;
181 cso_set_blend(st_ctx
->cso
, &blend
);
184 /* no-op depth/stencil/alpha */
186 struct pipe_depth_stencil_alpha_state depthstencil
;
187 memset(&depthstencil
, 0, sizeof(depthstencil
));
188 cso_set_depth_stencil_alpha(st_ctx
->cso
, &depthstencil
);
193 struct pipe_rasterizer_state rasterizer
;
194 memset(&rasterizer
, 0, sizeof(rasterizer
));
195 rasterizer
.front_winding
= PIPE_WINDING_CW
;
196 rasterizer
.cull_mode
= PIPE_WINDING_NONE
;
197 cso_set_rasterizer(st_ctx
->cso
, &rasterizer
);
202 struct pipe_clip_state clip
;
203 memset(&clip
, 0, sizeof(clip
));
204 st_ctx
->pipe
->set_clip_state(st_ctx
->pipe
, &clip
);
207 /* identity viewport */
209 struct pipe_viewport_state viewport
;
210 viewport
.scale
[0] = 1.0;
211 viewport
.scale
[1] = 1.0;
212 viewport
.scale
[2] = 1.0;
213 viewport
.scale
[3] = 1.0;
214 viewport
.translate
[0] = 0.0;
215 viewport
.translate
[1] = 0.0;
216 viewport
.translate
[2] = 0.0;
217 viewport
.translate
[3] = 0.0;
218 cso_set_viewport(st_ctx
->cso
, &viewport
);
223 struct pipe_sampler_state sampler
;
225 memset(&sampler
, 0, sizeof(sampler
));
226 sampler
.wrap_s
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
227 sampler
.wrap_t
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
228 sampler
.wrap_r
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
229 sampler
.min_mip_filter
= PIPE_TEX_MIPFILTER_NEAREST
;
230 sampler
.min_img_filter
= PIPE_TEX_MIPFILTER_NEAREST
;
231 sampler
.mag_img_filter
= PIPE_TEX_MIPFILTER_NEAREST
;
232 sampler
.normalized_coords
= 1;
233 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++)
234 cso_single_sampler(st_ctx
->cso
, i
, &sampler
);
235 cso_single_sampler_done(st_ctx
->cso
);
238 /* default textures */
240 struct pipe_screen
*screen
= st_dev
->screen
;
241 struct pipe_texture templat
;
242 struct pipe_transfer
*transfer
;
245 memset( &templat
, 0, sizeof( templat
) );
246 templat
.target
= PIPE_TEXTURE_2D
;
247 templat
.format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
251 templat
.last_level
= 0;
253 st_ctx
->default_texture
= screen
->texture_create( screen
, &templat
);
254 if(st_ctx
->default_texture
) {
255 transfer
= screen
->get_tex_transfer(screen
,
256 st_ctx
->default_texture
,
260 st_ctx
->default_texture
->width0
,
261 st_ctx
->default_texture
->height0
);
264 map
= (uint32_t *) screen
->transfer_map(screen
, transfer
);
267 screen
->transfer_unmap(screen
, transfer
);
269 screen
->tex_transfer_destroy(transfer
);
273 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++)
274 pipe_texture_reference(&st_ctx
->fragment_sampler_textures
[i
], st_ctx
->default_texture
);
275 for (i
= 0; i
< PIPE_MAX_VERTEX_SAMPLERS
; i
++)
276 pipe_texture_reference(&st_ctx
->vertex_sampler_textures
[i
], st_ctx
->default_texture
);
278 cso_set_sampler_textures(st_ctx
->cso
, PIPE_MAX_SAMPLERS
, st_ctx
->fragment_sampler_textures
);
279 cso_set_vertex_sampler_textures(st_ctx
->cso
, PIPE_MAX_VERTEX_SAMPLERS
, st_ctx
->vertex_sampler_textures
);
284 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
285 TGSI_SEMANTIC_GENERIC
};
286 const uint semantic_indexes
[] = { 0, 0 };
287 st_ctx
->vs
= util_make_vertex_passthrough_shader(st_ctx
->pipe
,
291 cso_set_vertex_shader_handle(st_ctx
->cso
, st_ctx
->vs
);
294 /* fragment shader */
296 st_ctx
->fs
= util_make_fragment_passthrough_shader(st_ctx
->pipe
);
297 cso_set_fragment_shader_handle(st_ctx
->cso
, st_ctx
->fs
);