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_util.h"
30 #include "pipe/p_winsys.h"
31 #include "pipe/p_context.h"
32 #include "pipe/p_shader_tokens.h"
33 #include "pipe/p_inlines.h"
34 #include "cso_cache/cso_context.h"
35 #include "util/u_simple_shaders.h"
36 #include "st_device.h"
37 #include "st_winsys.h"
41 st_device_really_destroy(struct st_device
*st_dev
)
44 st_dev
->st_ws
->screen_destroy(st_dev
->screen
);
51 st_device_destroy(struct st_device
*st_dev
)
53 if(!--st_dev
->refcount
)
54 st_device_really_destroy(st_dev
);
58 static struct st_device
*
59 st_device_create_from_st_winsys(const struct st_winsys
*st_ws
)
61 struct st_device
*st_dev
;
63 if(!st_ws
->screen_create
||
64 !st_ws
->screen_destroy
||
65 !st_ws
->context_create
||
66 !st_ws
->context_destroy
)
69 st_dev
= CALLOC_STRUCT(st_device
);
74 st_dev
->st_ws
= st_ws
;
76 st_dev
->screen
= st_ws
->screen_create();
78 st_device_destroy(st_dev
);
85 st_device_create(boolean hardware
) {
87 return st_device_create_from_st_winsys(&st_hardpipe_winsys
);
89 return st_device_create_from_st_winsys(&st_softpipe_winsys
);
94 st_context_destroy(struct st_context
*st_ctx
)
99 struct st_device
*st_dev
= st_ctx
->st_dev
;
102 cso_delete_vertex_shader(st_ctx
->cso
, st_ctx
->vs
);
103 cso_delete_fragment_shader(st_ctx
->cso
, st_ctx
->fs
);
105 cso_destroy_context(st_ctx
->cso
);
109 st_ctx
->st_dev
->st_ws
->context_destroy(st_ctx
->pipe
);
111 for(i
= 0; i
< PIPE_MAX_SAMPLERS
; ++i
)
112 pipe_texture_reference(&st_ctx
->sampler_textures
[i
], NULL
);
113 pipe_texture_reference(&st_ctx
->default_texture
, NULL
);
117 if(!--st_dev
->refcount
)
118 st_device_really_destroy(st_dev
);
124 st_context_create(struct st_device
*st_dev
)
126 struct st_context
*st_ctx
;
128 st_ctx
= CALLOC_STRUCT(st_context
);
132 st_ctx
->st_dev
= st_dev
;
135 st_ctx
->pipe
= st_dev
->st_ws
->context_create(st_dev
->screen
);
137 st_context_destroy(st_ctx
);
139 st_ctx
->cso
= cso_create_context(st_ctx
->pipe
);
141 st_context_destroy(st_ctx
);
143 /* disabled blending/masking */
145 struct pipe_blend_state blend
;
146 memset(&blend
, 0, sizeof(blend
));
147 blend
.rgb_src_factor
= PIPE_BLENDFACTOR_ONE
;
148 blend
.alpha_src_factor
= PIPE_BLENDFACTOR_ONE
;
149 blend
.rgb_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
150 blend
.alpha_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
151 blend
.colormask
= PIPE_MASK_RGBA
;
152 cso_set_blend(st_ctx
->cso
, &blend
);
155 /* no-op depth/stencil/alpha */
157 struct pipe_depth_stencil_alpha_state depthstencil
;
158 memset(&depthstencil
, 0, sizeof(depthstencil
));
159 cso_set_depth_stencil_alpha(st_ctx
->cso
, &depthstencil
);
164 struct pipe_rasterizer_state rasterizer
;
165 memset(&rasterizer
, 0, sizeof(rasterizer
));
166 rasterizer
.front_winding
= PIPE_WINDING_CW
;
167 rasterizer
.cull_mode
= PIPE_WINDING_NONE
;
168 rasterizer
.bypass_clipping
= 1;
169 /*rasterizer.bypass_vs = 1;*/
170 cso_set_rasterizer(st_ctx
->cso
, &rasterizer
);
173 /* identity viewport */
175 struct pipe_viewport_state viewport
;
176 viewport
.scale
[0] = 1.0;
177 viewport
.scale
[1] = 1.0;
178 viewport
.scale
[2] = 1.0;
179 viewport
.scale
[3] = 1.0;
180 viewport
.translate
[0] = 0.0;
181 viewport
.translate
[1] = 0.0;
182 viewport
.translate
[2] = 0.0;
183 viewport
.translate
[3] = 0.0;
184 cso_set_viewport(st_ctx
->cso
, &viewport
);
189 struct pipe_sampler_state sampler
;
191 memset(&sampler
, 0, sizeof(sampler
));
192 sampler
.wrap_s
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
193 sampler
.wrap_t
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
194 sampler
.wrap_r
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
195 sampler
.min_mip_filter
= PIPE_TEX_MIPFILTER_NEAREST
;
196 sampler
.min_img_filter
= PIPE_TEX_MIPFILTER_NEAREST
;
197 sampler
.mag_img_filter
= PIPE_TEX_MIPFILTER_NEAREST
;
198 sampler
.normalized_coords
= 1;
199 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++)
200 cso_single_sampler(st_ctx
->cso
, i
, &sampler
);
201 cso_single_sampler_done(st_ctx
->cso
);
204 /* default textures */
206 struct pipe_screen
*screen
= st_dev
->screen
;
207 struct pipe_texture templat
;
208 struct pipe_surface
*surface
;
211 memset( &templat
, 0, sizeof( templat
) );
212 templat
.target
= PIPE_TEXTURE_2D
;
213 templat
.format
= PIPE_FORMAT_A8R8G8B8_UNORM
;
214 templat
.block
.size
= 4;
215 templat
.block
.width
= 1;
216 templat
.block
.height
= 1;
217 templat
.width
[0] = 1;
218 templat
.height
[0] = 1;
219 templat
.depth
[0] = 1;
220 templat
.last_level
= 0;
222 st_ctx
->default_texture
= screen
->texture_create( screen
, &templat
);
223 if(st_ctx
->default_texture
) {
224 surface
= screen
->get_tex_surface( screen
,
225 st_ctx
->default_texture
, 0, 0, 0,
226 PIPE_BUFFER_USAGE_CPU_WRITE
);
229 map
= (uint32_t *) pipe_surface_map(surface
, PIPE_BUFFER_USAGE_CPU_WRITE
);
232 pipe_surface_unmap( surface
);
234 pipe_surface_reference(&surface
, NULL
);
238 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++)
239 pipe_texture_reference(&st_ctx
->sampler_textures
[i
], st_ctx
->default_texture
);
241 cso_set_sampler_textures(st_ctx
->cso
, PIPE_MAX_SAMPLERS
, st_ctx
->sampler_textures
);
246 struct pipe_shader_state vert_shader
;
248 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
249 TGSI_SEMANTIC_GENERIC
};
250 const uint semantic_indexes
[] = { 0, 0 };
251 st_ctx
->vs
= util_make_vertex_passthrough_shader(st_ctx
->pipe
,
256 cso_set_vertex_shader_handle(st_ctx
->cso
, st_ctx
->vs
);
259 /* fragment shader */
261 struct pipe_shader_state frag_shader
;
262 st_ctx
->fs
= util_make_fragment_passthrough_shader(st_ctx
->pipe
,
264 cso_set_fragment_shader_handle(st_ctx
->cso
, st_ctx
->fs
);
272 st_buffer_destroy(struct st_buffer
*st_buf
)
275 struct pipe_winsys
*winsys
= st_buf
->st_dev
->screen
->winsys
;
276 pipe_buffer_reference(winsys
, &st_buf
->buffer
, NULL
);
283 st_buffer_create(struct st_device
*st_dev
,
284 unsigned alignment
, unsigned usage
, unsigned size
)
286 struct pipe_winsys
*winsys
= st_dev
->screen
->winsys
;
287 struct st_buffer
*st_buf
;
289 st_buf
= CALLOC_STRUCT(st_buffer
);
293 st_buf
->st_dev
= st_dev
;
295 st_buf
->buffer
= winsys
->buffer_create(winsys
, alignment
, usage
, size
);
297 st_buffer_destroy(st_buf
);