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_reference(struct st_device
**ptr
, struct st_device
*st_dev
)
57 struct st_device
*old_dev
= *ptr
;
59 if (pipe_reference((struct pipe_reference
**)ptr
, &st_dev
->reference
))
60 st_device_really_destroy(old_dev
);
65 st_device_destroy(struct st_device
*st_dev
)
67 st_device_reference(&st_dev
, NULL
);
71 static struct st_device
*
72 st_device_create_from_st_winsys(const struct st_winsys
*st_ws
)
74 struct st_device
*st_dev
;
76 if(!st_ws
->screen_create
||
77 !st_ws
->context_create
)
80 st_dev
= CALLOC_STRUCT(st_device
);
84 pipe_reference_init(&st_dev
->reference
, 1);
85 st_dev
->st_ws
= st_ws
;
87 st_dev
->real_screen
= st_ws
->screen_create();
88 if(!st_dev
->real_screen
) {
89 st_device_destroy(st_dev
);
93 st_dev
->screen
= trace_screen_create(st_dev
->real_screen
);
95 st_device_destroy(st_dev
);
104 st_device_create(boolean hardware
) {
106 return st_device_create_from_st_winsys(&st_hardpipe_winsys
);
108 return st_device_create_from_st_winsys(&st_softpipe_winsys
);
113 st_context_destroy(struct st_context
*st_ctx
)
118 struct st_device
*st_dev
= st_ctx
->st_dev
;
121 cso_delete_vertex_shader(st_ctx
->cso
, st_ctx
->vs
);
122 cso_delete_fragment_shader(st_ctx
->cso
, st_ctx
->fs
);
124 cso_destroy_context(st_ctx
->cso
);
128 st_ctx
->pipe
->destroy(st_ctx
->pipe
);
130 for(i
= 0; i
< PIPE_MAX_SAMPLERS
; ++i
)
131 pipe_texture_reference(&st_ctx
->sampler_textures
[i
], NULL
);
132 pipe_texture_reference(&st_ctx
->default_texture
, NULL
);
136 st_device_reference(&st_dev
, NULL
);
142 st_context_create(struct st_device
*st_dev
)
144 struct st_context
*st_ctx
;
146 st_ctx
= CALLOC_STRUCT(st_context
);
150 st_device_reference(&st_ctx
->st_dev
, st_dev
);
152 st_ctx
->real_pipe
= st_dev
->st_ws
->context_create(st_dev
->real_screen
);
153 if(!st_ctx
->real_pipe
) {
154 st_context_destroy(st_ctx
);
158 st_ctx
->pipe
= trace_context_create(st_dev
->screen
, st_ctx
->real_pipe
);
160 st_context_destroy(st_ctx
);
164 st_ctx
->cso
= cso_create_context(st_ctx
->pipe
);
166 st_context_destroy(st_ctx
);
170 /* disabled blending/masking */
172 struct pipe_blend_state blend
;
173 memset(&blend
, 0, sizeof(blend
));
174 blend
.rgb_src_factor
= PIPE_BLENDFACTOR_ONE
;
175 blend
.alpha_src_factor
= PIPE_BLENDFACTOR_ONE
;
176 blend
.rgb_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
177 blend
.alpha_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
178 blend
.colormask
= PIPE_MASK_RGBA
;
179 cso_set_blend(st_ctx
->cso
, &blend
);
182 /* no-op depth/stencil/alpha */
184 struct pipe_depth_stencil_alpha_state depthstencil
;
185 memset(&depthstencil
, 0, sizeof(depthstencil
));
186 cso_set_depth_stencil_alpha(st_ctx
->cso
, &depthstencil
);
191 struct pipe_rasterizer_state rasterizer
;
192 memset(&rasterizer
, 0, sizeof(rasterizer
));
193 rasterizer
.front_winding
= PIPE_WINDING_CW
;
194 rasterizer
.cull_mode
= PIPE_WINDING_NONE
;
195 rasterizer
.bypass_vs_clip_and_viewport
= 1;
196 cso_set_rasterizer(st_ctx
->cso
, &rasterizer
);
199 /* identity viewport */
201 struct pipe_viewport_state viewport
;
202 viewport
.scale
[0] = 1.0;
203 viewport
.scale
[1] = 1.0;
204 viewport
.scale
[2] = 1.0;
205 viewport
.scale
[3] = 1.0;
206 viewport
.translate
[0] = 0.0;
207 viewport
.translate
[1] = 0.0;
208 viewport
.translate
[2] = 0.0;
209 viewport
.translate
[3] = 0.0;
210 cso_set_viewport(st_ctx
->cso
, &viewport
);
215 struct pipe_sampler_state sampler
;
217 memset(&sampler
, 0, sizeof(sampler
));
218 sampler
.wrap_s
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
219 sampler
.wrap_t
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
220 sampler
.wrap_r
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
221 sampler
.min_mip_filter
= PIPE_TEX_MIPFILTER_NEAREST
;
222 sampler
.min_img_filter
= PIPE_TEX_MIPFILTER_NEAREST
;
223 sampler
.mag_img_filter
= PIPE_TEX_MIPFILTER_NEAREST
;
224 sampler
.normalized_coords
= 1;
225 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++)
226 cso_single_sampler(st_ctx
->cso
, i
, &sampler
);
227 cso_single_sampler_done(st_ctx
->cso
);
230 /* default textures */
232 struct pipe_screen
*screen
= st_dev
->screen
;
233 struct pipe_texture templat
;
234 struct pipe_surface
*surface
;
237 memset( &templat
, 0, sizeof( templat
) );
238 templat
.target
= PIPE_TEXTURE_2D
;
239 templat
.format
= PIPE_FORMAT_A8R8G8B8_UNORM
;
240 templat
.block
.size
= 4;
241 templat
.block
.width
= 1;
242 templat
.block
.height
= 1;
243 templat
.width
[0] = 1;
244 templat
.height
[0] = 1;
245 templat
.depth
[0] = 1;
246 templat
.last_level
= 0;
248 st_ctx
->default_texture
= screen
->texture_create( screen
, &templat
);
249 if(st_ctx
->default_texture
) {
250 surface
= screen
->get_tex_surface( screen
,
251 st_ctx
->default_texture
, 0, 0, 0,
252 PIPE_BUFFER_USAGE_CPU_WRITE
);
255 map
= (uint32_t *) pipe_surface_map(surface
, PIPE_BUFFER_USAGE_CPU_WRITE
);
258 pipe_surface_unmap( surface
);
260 pipe_surface_reference(&surface
, NULL
);
264 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++)
265 pipe_texture_reference(&st_ctx
->sampler_textures
[i
], st_ctx
->default_texture
);
267 cso_set_sampler_textures(st_ctx
->cso
, PIPE_MAX_SAMPLERS
, st_ctx
->sampler_textures
);
272 struct pipe_shader_state vert_shader
;
274 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
275 TGSI_SEMANTIC_GENERIC
};
276 const uint semantic_indexes
[] = { 0, 0 };
277 st_ctx
->vs
= util_make_vertex_passthrough_shader(st_ctx
->pipe
,
282 cso_set_vertex_shader_handle(st_ctx
->cso
, st_ctx
->vs
);
285 /* fragment shader */
287 struct pipe_shader_state frag_shader
;
288 st_ctx
->fs
= util_make_fragment_passthrough_shader(st_ctx
->pipe
,
290 cso_set_fragment_shader_handle(st_ctx
->cso
, st_ctx
->fs
);
298 st_buffer_destroy(struct st_buffer
*st_buf
)
301 pipe_buffer_reference(&st_buf
->buffer
, NULL
);
308 st_buffer_create(struct st_device
*st_dev
,
309 unsigned alignment
, unsigned usage
, unsigned size
)
311 struct pipe_screen
*screen
= st_dev
->screen
;
312 struct st_buffer
*st_buf
;
314 st_buf
= CALLOC_STRUCT(st_buffer
);
318 st_buf
->st_dev
= st_dev
;
320 st_buf
->buffer
= pipe_buffer_create(screen
, alignment
, usage
, size
);
321 if(!st_buf
->buffer
) {
322 st_buffer_destroy(st_buf
);