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 "pipe/p_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 st_dev
->screen
->destroy(st_dev
->screen
);
55 st_device_destroy(struct st_device
*st_dev
)
57 if(!--st_dev
->refcount
)
58 st_device_really_destroy(st_dev
);
62 static struct st_device
*
63 st_device_create_from_st_winsys(const struct st_winsys
*st_ws
)
65 struct st_device
*st_dev
;
67 if(!st_ws
->screen_create
||
68 !st_ws
->context_create
)
71 st_dev
= CALLOC_STRUCT(st_device
);
76 st_dev
->st_ws
= st_ws
;
78 st_dev
->real_screen
= st_ws
->screen_create();
79 if(!st_dev
->real_screen
) {
80 st_device_destroy(st_dev
);
84 st_dev
->screen
= trace_screen_create(st_dev
->real_screen
);
86 st_device_destroy(st_dev
);
95 st_device_create(boolean hardware
) {
97 return st_device_create_from_st_winsys(&st_hardpipe_winsys
);
99 return st_device_create_from_st_winsys(&st_softpipe_winsys
);
104 st_context_destroy(struct st_context
*st_ctx
)
109 struct st_device
*st_dev
= st_ctx
->st_dev
;
112 cso_delete_vertex_shader(st_ctx
->cso
, st_ctx
->vs
);
113 cso_delete_fragment_shader(st_ctx
->cso
, st_ctx
->fs
);
115 cso_destroy_context(st_ctx
->cso
);
119 st_ctx
->pipe
->destroy(st_ctx
->pipe
);
121 for(i
= 0; i
< PIPE_MAX_SAMPLERS
; ++i
)
122 pipe_texture_reference(&st_ctx
->sampler_textures
[i
], NULL
);
123 pipe_texture_reference(&st_ctx
->default_texture
, NULL
);
127 if(!--st_dev
->refcount
)
128 st_device_really_destroy(st_dev
);
134 st_context_create(struct st_device
*st_dev
)
136 struct st_context
*st_ctx
;
138 st_ctx
= CALLOC_STRUCT(st_context
);
142 st_ctx
->st_dev
= st_dev
;
145 st_ctx
->real_pipe
= st_dev
->st_ws
->context_create(st_dev
->real_screen
);
146 if(!st_ctx
->real_pipe
) {
147 st_context_destroy(st_ctx
);
151 st_ctx
->pipe
= trace_context_create(st_dev
->screen
, st_ctx
->real_pipe
);
153 st_context_destroy(st_ctx
);
157 st_ctx
->cso
= cso_create_context(st_ctx
->pipe
);
159 st_context_destroy(st_ctx
);
163 /* disabled blending/masking */
165 struct pipe_blend_state blend
;
166 memset(&blend
, 0, sizeof(blend
));
167 blend
.rgb_src_factor
= PIPE_BLENDFACTOR_ONE
;
168 blend
.alpha_src_factor
= PIPE_BLENDFACTOR_ONE
;
169 blend
.rgb_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
170 blend
.alpha_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
171 blend
.colormask
= PIPE_MASK_RGBA
;
172 cso_set_blend(st_ctx
->cso
, &blend
);
175 /* no-op depth/stencil/alpha */
177 struct pipe_depth_stencil_alpha_state depthstencil
;
178 memset(&depthstencil
, 0, sizeof(depthstencil
));
179 cso_set_depth_stencil_alpha(st_ctx
->cso
, &depthstencil
);
184 struct pipe_rasterizer_state rasterizer
;
185 memset(&rasterizer
, 0, sizeof(rasterizer
));
186 rasterizer
.front_winding
= PIPE_WINDING_CW
;
187 rasterizer
.cull_mode
= PIPE_WINDING_NONE
;
188 rasterizer
.bypass_clipping
= 1;
189 /*rasterizer.bypass_vs = 1;*/
190 cso_set_rasterizer(st_ctx
->cso
, &rasterizer
);
193 /* identity viewport */
195 struct pipe_viewport_state viewport
;
196 viewport
.scale
[0] = 1.0;
197 viewport
.scale
[1] = 1.0;
198 viewport
.scale
[2] = 1.0;
199 viewport
.scale
[3] = 1.0;
200 viewport
.translate
[0] = 0.0;
201 viewport
.translate
[1] = 0.0;
202 viewport
.translate
[2] = 0.0;
203 viewport
.translate
[3] = 0.0;
204 cso_set_viewport(st_ctx
->cso
, &viewport
);
209 struct pipe_sampler_state sampler
;
211 memset(&sampler
, 0, sizeof(sampler
));
212 sampler
.wrap_s
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
213 sampler
.wrap_t
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
214 sampler
.wrap_r
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
215 sampler
.min_mip_filter
= PIPE_TEX_MIPFILTER_NEAREST
;
216 sampler
.min_img_filter
= PIPE_TEX_MIPFILTER_NEAREST
;
217 sampler
.mag_img_filter
= PIPE_TEX_MIPFILTER_NEAREST
;
218 sampler
.normalized_coords
= 1;
219 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++)
220 cso_single_sampler(st_ctx
->cso
, i
, &sampler
);
221 cso_single_sampler_done(st_ctx
->cso
);
224 /* default textures */
226 struct pipe_screen
*screen
= st_dev
->screen
;
227 struct pipe_texture templat
;
228 struct pipe_surface
*surface
;
231 memset( &templat
, 0, sizeof( templat
) );
232 templat
.target
= PIPE_TEXTURE_2D
;
233 templat
.format
= PIPE_FORMAT_A8R8G8B8_UNORM
;
234 templat
.block
.size
= 4;
235 templat
.block
.width
= 1;
236 templat
.block
.height
= 1;
237 templat
.width
[0] = 1;
238 templat
.height
[0] = 1;
239 templat
.depth
[0] = 1;
240 templat
.last_level
= 0;
242 st_ctx
->default_texture
= screen
->texture_create( screen
, &templat
);
243 if(st_ctx
->default_texture
) {
244 surface
= screen
->get_tex_surface( screen
,
245 st_ctx
->default_texture
, 0, 0, 0,
246 PIPE_BUFFER_USAGE_CPU_WRITE
);
249 map
= (uint32_t *) pipe_surface_map(surface
, PIPE_BUFFER_USAGE_CPU_WRITE
);
252 pipe_surface_unmap( surface
);
254 pipe_surface_reference(&surface
, NULL
);
258 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++)
259 pipe_texture_reference(&st_ctx
->sampler_textures
[i
], st_ctx
->default_texture
);
261 cso_set_sampler_textures(st_ctx
->cso
, PIPE_MAX_SAMPLERS
, st_ctx
->sampler_textures
);
266 struct pipe_shader_state vert_shader
;
268 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
269 TGSI_SEMANTIC_GENERIC
};
270 const uint semantic_indexes
[] = { 0, 0 };
271 st_ctx
->vs
= util_make_vertex_passthrough_shader(st_ctx
->pipe
,
276 cso_set_vertex_shader_handle(st_ctx
->cso
, st_ctx
->vs
);
279 /* fragment shader */
281 struct pipe_shader_state frag_shader
;
282 st_ctx
->fs
= util_make_fragment_passthrough_shader(st_ctx
->pipe
,
284 cso_set_fragment_shader_handle(st_ctx
->cso
, st_ctx
->fs
);
292 st_buffer_destroy(struct st_buffer
*st_buf
)
295 struct pipe_screen
*screen
= st_buf
->st_dev
->screen
;
296 pipe_buffer_reference(screen
, &st_buf
->buffer
, NULL
);
303 st_buffer_create(struct st_device
*st_dev
,
304 unsigned alignment
, unsigned usage
, unsigned size
)
306 struct pipe_screen
*screen
= st_dev
->screen
;
307 struct st_buffer
*st_buf
;
309 st_buf
= CALLOC_STRUCT(st_buffer
);
313 st_buf
->st_dev
= st_dev
;
315 st_buf
->buffer
= pipe_buffer_create(screen
, alignment
, usage
, size
);
316 if(!st_buf
->buffer
) {
317 st_buffer_destroy(st_buf
);