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 "util/u_memory.h"
30 #include "util/u_format.h"
31 #include "util/u_format_s3tc.h"
32 #include "pipe/p_defines.h"
33 #include "pipe/p_screen.h"
34 #include "draw/draw_context.h"
36 #include "state_tracker/sw_winsys.h"
37 #include "tgsi/tgsi_exec.h"
39 #include "sp_texture.h"
40 #include "sp_screen.h"
41 #include "sp_context.h"
43 #include "sp_public.h"
47 softpipe_get_vendor(struct pipe_screen
*screen
)
49 return "VMware, Inc.";
54 softpipe_get_name(struct pipe_screen
*screen
)
61 softpipe_get_param(struct pipe_screen
*screen
, enum pipe_cap param
)
64 case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS
:
65 return PIPE_MAX_SAMPLERS
;
66 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS
:
68 /* Softpipe doesn't yet know how to tell draw/llvm about textures */
71 return PIPE_MAX_VERTEX_SAMPLERS
;
73 case PIPE_CAP_MAX_COMBINED_SAMPLERS
:
74 return PIPE_MAX_SAMPLERS
+ PIPE_MAX_VERTEX_SAMPLERS
;
75 case PIPE_CAP_NPOT_TEXTURES
:
77 case PIPE_CAP_TWO_SIDED_STENCIL
:
83 case PIPE_CAP_ANISOTROPIC_FILTER
:
85 case PIPE_CAP_POINT_SPRITE
:
87 case PIPE_CAP_MAX_RENDER_TARGETS
:
88 return PIPE_MAX_COLOR_BUFS
;
89 case PIPE_CAP_OCCLUSION_QUERY
:
91 case PIPE_CAP_TIMER_QUERY
:
93 case PIPE_CAP_TEXTURE_MIRROR_CLAMP
:
95 case PIPE_CAP_TEXTURE_MIRROR_REPEAT
:
97 case PIPE_CAP_TEXTURE_SHADOW_MAP
:
99 case PIPE_CAP_TEXTURE_SWIZZLE
:
101 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS
:
102 return SP_MAX_TEXTURE_2D_LEVELS
;
103 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS
:
104 return SP_MAX_TEXTURE_3D_LEVELS
;
105 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS
:
106 return SP_MAX_TEXTURE_2D_LEVELS
;
107 case PIPE_CAP_BLEND_EQUATION_SEPARATE
:
109 case PIPE_CAP_INDEP_BLEND_ENABLE
:
111 case PIPE_CAP_INDEP_BLEND_FUNC
:
113 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT
:
114 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT
:
115 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER
:
116 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER
:
118 case PIPE_CAP_STREAM_OUTPUT
:
120 case PIPE_CAP_PRIMITIVE_RESTART
:
122 case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE
:
124 case PIPE_CAP_SHADER_STENCIL_EXPORT
:
132 softpipe_get_shader_param(struct pipe_screen
*screen
, unsigned shader
, enum pipe_shader_cap param
)
136 case PIPE_SHADER_FRAGMENT
:
137 return tgsi_exec_get_shader_param(param
);
138 case PIPE_SHADER_VERTEX
:
139 case PIPE_SHADER_GEOMETRY
:
140 return draw_get_shader_param(shader
, param
);
147 softpipe_get_paramf(struct pipe_screen
*screen
, enum pipe_cap param
)
150 case PIPE_CAP_MAX_LINE_WIDTH
:
152 case PIPE_CAP_MAX_LINE_WIDTH_AA
:
153 return 255.0; /* arbitrary */
154 case PIPE_CAP_MAX_POINT_WIDTH
:
156 case PIPE_CAP_MAX_POINT_WIDTH_AA
:
157 return 255.0; /* arbitrary */
158 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY
:
159 return 16.0; /* not actually signficant at this time */
160 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS
:
161 return 16.0; /* arbitrary */
169 * Query format support for creating a texture, drawing surface, etc.
170 * \param format the format to test
171 * \param type one of PIPE_TEXTURE, PIPE_SURFACE
174 softpipe_is_format_supported( struct pipe_screen
*screen
,
175 enum pipe_format format
,
176 enum pipe_texture_target target
,
177 unsigned sample_count
,
179 unsigned geom_flags
)
181 struct sw_winsys
*winsys
= softpipe_screen(screen
)->winsys
;
182 const struct util_format_description
*format_desc
;
184 assert(target
== PIPE_BUFFER
||
185 target
== PIPE_TEXTURE_1D
||
186 target
== PIPE_TEXTURE_2D
||
187 target
== PIPE_TEXTURE_RECT
||
188 target
== PIPE_TEXTURE_3D
||
189 target
== PIPE_TEXTURE_CUBE
);
191 format_desc
= util_format_description(format
);
195 if (sample_count
> 1)
198 if (bind
& (PIPE_BIND_DISPLAY_TARGET
|
201 if(!winsys
->is_displaytarget_format_supported(winsys
, bind
, format
))
205 if (bind
& PIPE_BIND_RENDER_TARGET
) {
206 if (format_desc
->colorspace
== UTIL_FORMAT_COLORSPACE_ZS
)
210 * Although possible, it is unnatural to render into compressed or YUV
211 * surfaces. So disable these here to avoid going into weird paths
212 * inside the state trackers.
214 if (format_desc
->block
.width
!= 1 ||
215 format_desc
->block
.height
!= 1)
219 if (bind
& PIPE_BIND_DEPTH_STENCIL
) {
220 if (format_desc
->colorspace
!= UTIL_FORMAT_COLORSPACE_ZS
)
224 * TODO: Unfortunately we cannot render into anything more than 32 bits
225 * because we encode depth and stencil clear values into a 32bit word.
227 if (format_desc
->block
.bits
> 32)
231 * TODO: eliminate this restriction
233 if (format
== PIPE_FORMAT_Z32_FLOAT
)
238 * All other operations (sampling, transfer, etc).
241 if (format_desc
->layout
== UTIL_FORMAT_LAYOUT_S3TC
) {
242 return util_format_s3tc_enabled
;
246 * Everything else should be supported by u_format.
253 softpipe_destroy_screen( struct pipe_screen
*screen
)
255 struct softpipe_screen
*sp_screen
= softpipe_screen(screen
);
256 struct sw_winsys
*winsys
= sp_screen
->winsys
;
259 winsys
->destroy(winsys
);
265 /* This is often overriden by the co-state tracker.
268 softpipe_flush_frontbuffer(struct pipe_screen
*_screen
,
269 struct pipe_surface
*surface
,
270 void *context_private
)
272 struct softpipe_screen
*screen
= softpipe_screen(_screen
);
273 struct sw_winsys
*winsys
= screen
->winsys
;
274 struct softpipe_resource
*texture
= softpipe_resource(surface
->texture
);
278 winsys
->displaytarget_display(winsys
, texture
->dt
, context_private
);
282 * Create a new pipe_screen object
283 * Note: we're not presently subclassing pipe_screen (no softpipe_screen).
286 softpipe_create_screen(struct sw_winsys
*winsys
)
288 struct softpipe_screen
*screen
= CALLOC_STRUCT(softpipe_screen
);
293 screen
->winsys
= winsys
;
295 screen
->base
.winsys
= NULL
;
296 screen
->base
.destroy
= softpipe_destroy_screen
;
298 screen
->base
.get_name
= softpipe_get_name
;
299 screen
->base
.get_vendor
= softpipe_get_vendor
;
300 screen
->base
.get_param
= softpipe_get_param
;
301 screen
->base
.get_shader_param
= softpipe_get_shader_param
;
302 screen
->base
.get_paramf
= softpipe_get_paramf
;
303 screen
->base
.is_format_supported
= softpipe_is_format_supported
;
304 screen
->base
.context_create
= softpipe_create_context
;
305 screen
->base
.flush_frontbuffer
= softpipe_flush_frontbuffer
;
307 util_format_s3tc_init();
309 softpipe_init_screen_texture_funcs(&screen
->base
);
310 softpipe_init_screen_fence_funcs(&screen
->base
);
312 return &screen
->base
;