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"
35 #include "state_tracker/sw_winsys.h"
36 #include "tgsi/tgsi_exec.h"
38 #include "sp_texture.h"
39 #include "sp_screen.h"
40 #include "sp_context.h"
42 #include "sp_public.h"
46 softpipe_get_vendor(struct pipe_screen
*screen
)
48 return "VMware, Inc.";
53 softpipe_get_name(struct pipe_screen
*screen
)
60 softpipe_get_param(struct pipe_screen
*screen
, enum pipe_cap param
)
63 case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS
:
64 return PIPE_MAX_SAMPLERS
;
65 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS
:
66 return PIPE_MAX_VERTEX_SAMPLERS
;
67 case PIPE_CAP_MAX_COMBINED_SAMPLERS
:
68 return PIPE_MAX_SAMPLERS
+ PIPE_MAX_VERTEX_SAMPLERS
;
69 case PIPE_CAP_NPOT_TEXTURES
:
71 case PIPE_CAP_TWO_SIDED_STENCIL
:
77 case PIPE_CAP_ANISOTROPIC_FILTER
:
79 case PIPE_CAP_POINT_SPRITE
:
81 case PIPE_CAP_MAX_RENDER_TARGETS
:
82 return PIPE_MAX_COLOR_BUFS
;
83 case PIPE_CAP_OCCLUSION_QUERY
:
85 case PIPE_CAP_TEXTURE_MIRROR_CLAMP
:
87 case PIPE_CAP_TEXTURE_MIRROR_REPEAT
:
89 case PIPE_CAP_TEXTURE_SHADOW_MAP
:
91 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS
:
92 return SP_MAX_TEXTURE_2D_LEVELS
;
93 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS
:
94 return SP_MAX_TEXTURE_3D_LEVELS
;
95 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS
:
96 return SP_MAX_TEXTURE_2D_LEVELS
;
97 case PIPE_CAP_TGSI_CONT_SUPPORTED
:
99 case PIPE_CAP_BLEND_EQUATION_SEPARATE
:
101 case PIPE_CAP_MAX_CONST_BUFFERS
:
102 return PIPE_MAX_CONSTANT_BUFFERS
;
103 case PIPE_CAP_MAX_CONST_BUFFER_SIZE
:
104 return 4096 * 4 * sizeof(float);
105 case PIPE_CAP_INDEP_BLEND_ENABLE
:
107 case PIPE_CAP_INDEP_BLEND_FUNC
:
109 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT
:
110 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT
:
111 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER
:
112 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER
:
115 case PIPE_CAP_MAX_VS_INSTRUCTIONS
:
116 case PIPE_CAP_MAX_FS_INSTRUCTIONS
:
117 case PIPE_CAP_MAX_VS_ALU_INSTRUCTIONS
:
118 case PIPE_CAP_MAX_FS_ALU_INSTRUCTIONS
:
119 case PIPE_CAP_MAX_VS_TEX_INSTRUCTIONS
:
120 case PIPE_CAP_MAX_FS_TEX_INSTRUCTIONS
:
121 case PIPE_CAP_MAX_VS_TEX_INDIRECTIONS
:
122 case PIPE_CAP_MAX_FS_TEX_INDIRECTIONS
:
123 /* There is no limit in number of instructions beyond available memory */
125 case PIPE_CAP_MAX_VS_CONTROL_FLOW_DEPTH
:
126 case PIPE_CAP_MAX_FS_CONTROL_FLOW_DEPTH
:
127 return TGSI_EXEC_MAX_NESTING
;
128 case PIPE_CAP_MAX_VS_INPUTS
:
129 case PIPE_CAP_MAX_FS_INPUTS
:
130 return TGSI_EXEC_MAX_INPUT_ATTRIBS
;
131 case PIPE_CAP_MAX_FS_CONSTS
:
132 case PIPE_CAP_MAX_VS_CONSTS
:
133 return TGSI_EXEC_MAX_CONST_BUFFER
;
134 case PIPE_CAP_MAX_VS_TEMPS
:
135 case PIPE_CAP_MAX_FS_TEMPS
:
136 return TGSI_EXEC_NUM_TEMPS
;
137 case PIPE_CAP_MAX_VS_ADDRS
:
138 case PIPE_CAP_MAX_FS_ADDRS
:
139 return TGSI_EXEC_NUM_ADDRS
;
140 case PIPE_CAP_MAX_VS_PREDS
:
141 case PIPE_CAP_MAX_FS_PREDS
:
142 return TGSI_EXEC_NUM_PREDS
;
151 softpipe_get_paramf(struct pipe_screen
*screen
, enum pipe_cap param
)
154 case PIPE_CAP_MAX_LINE_WIDTH
:
156 case PIPE_CAP_MAX_LINE_WIDTH_AA
:
157 return 255.0; /* arbitrary */
158 case PIPE_CAP_MAX_POINT_WIDTH
:
160 case PIPE_CAP_MAX_POINT_WIDTH_AA
:
161 return 255.0; /* arbitrary */
162 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY
:
163 return 16.0; /* not actually signficant at this time */
164 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS
:
165 return 16.0; /* arbitrary */
173 * Query format support for creating a texture, drawing surface, etc.
174 * \param format the format to test
175 * \param type one of PIPE_TEXTURE, PIPE_SURFACE
178 softpipe_is_format_supported( struct pipe_screen
*screen
,
179 enum pipe_format format
,
180 enum pipe_texture_target target
,
182 unsigned geom_flags
)
184 struct sw_winsys
*winsys
= softpipe_screen(screen
)->winsys
;
185 const struct util_format_description
*format_desc
;
187 assert(target
== PIPE_TEXTURE_1D
||
188 target
== PIPE_TEXTURE_2D
||
189 target
== PIPE_TEXTURE_3D
||
190 target
== PIPE_TEXTURE_CUBE
);
192 format_desc
= util_format_description(format
);
196 if (bind
& (PIPE_BIND_DISPLAY_TARGET
|
199 if(!winsys
->is_displaytarget_format_supported(winsys
, bind
, format
))
203 if (bind
& PIPE_BIND_RENDER_TARGET
) {
204 if (format_desc
->colorspace
== UTIL_FORMAT_COLORSPACE_ZS
)
208 * Although possible, it is unnatural to render into compressed or YUV
209 * surfaces. So disable these here to avoid going into weird paths
210 * inside the state trackers.
212 if (format_desc
->block
.width
!= 1 ||
213 format_desc
->block
.height
!= 1)
217 * TODO: Unfortunately we cannot render into anything more than 32 bits
218 * because we encode color clear values into a 32bit word.
220 if (format_desc
->block
.bits
> 32)
224 if (bind
& PIPE_BIND_DEPTH_STENCIL
) {
225 if (format_desc
->colorspace
!= UTIL_FORMAT_COLORSPACE_ZS
)
229 * TODO: Unfortunately we cannot render into anything more than 32 bits
230 * because we encode depth and stencil clear values into a 32bit word.
232 if (format_desc
->block
.bits
> 32)
236 * TODO: eliminate this restriction
238 if (format
== PIPE_FORMAT_Z32_FLOAT
)
243 * All other operations (sampling, transfer, etc).
246 if (format_desc
->layout
== UTIL_FORMAT_LAYOUT_S3TC
) {
247 return util_format_s3tc_enabled
;
251 * Everything else should be supported by u_format.
258 softpipe_destroy_screen( struct pipe_screen
*screen
)
260 struct softpipe_screen
*sp_screen
= softpipe_screen(screen
);
261 struct sw_winsys
*winsys
= sp_screen
->winsys
;
264 winsys
->destroy(winsys
);
270 /* This is often overriden by the co-state tracker.
273 softpipe_flush_frontbuffer(struct pipe_screen
*_screen
,
274 struct pipe_surface
*surface
,
275 void *context_private
)
277 struct softpipe_screen
*screen
= softpipe_screen(_screen
);
278 struct sw_winsys
*winsys
= screen
->winsys
;
279 struct softpipe_resource
*texture
= softpipe_resource(surface
->texture
);
283 winsys
->displaytarget_display(winsys
, texture
->dt
, context_private
);
287 * Create a new pipe_screen object
288 * Note: we're not presently subclassing pipe_screen (no softpipe_screen).
291 softpipe_create_screen(struct sw_winsys
*winsys
)
293 struct softpipe_screen
*screen
= CALLOC_STRUCT(softpipe_screen
);
298 screen
->winsys
= winsys
;
300 screen
->base
.winsys
= NULL
;
301 screen
->base
.destroy
= softpipe_destroy_screen
;
303 screen
->base
.get_name
= softpipe_get_name
;
304 screen
->base
.get_vendor
= softpipe_get_vendor
;
305 screen
->base
.get_param
= softpipe_get_param
;
306 screen
->base
.get_paramf
= softpipe_get_paramf
;
307 screen
->base
.is_format_supported
= softpipe_is_format_supported
;
308 screen
->base
.context_create
= softpipe_create_context
;
309 screen
->base
.flush_frontbuffer
= softpipe_flush_frontbuffer
;
311 util_format_s3tc_init();
313 softpipe_init_screen_texture_funcs(&screen
->base
);
314 softpipe_init_screen_fence_funcs(&screen
->base
);
316 return &screen
->base
;