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 "util/u_video.h"
33 #include "pipe/p_defines.h"
34 #include "pipe/p_screen.h"
35 #include "draw/draw_context.h"
36 #include "vl/vl_decoder.h"
37 #include "vl/vl_video_buffer.h"
39 #include "state_tracker/sw_winsys.h"
40 #include "tgsi/tgsi_exec.h"
42 #include "sp_texture.h"
43 #include "sp_screen.h"
44 #include "sp_context.h"
46 #include "sp_public.h"
48 DEBUG_GET_ONCE_BOOL_OPTION(use_llvm, "SOFTPIPE_USE_LLVM", FALSE)
51 softpipe_get_vendor(struct pipe_screen *screen)
53 return "VMware, Inc.";
58 softpipe_get_name(struct pipe_screen *screen)
65 softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
68 case PIPE_CAP_MAX_COMBINED_SAMPLERS:
69 return PIPE_MAX_SAMPLERS + PIPE_MAX_VERTEX_SAMPLERS;
70 case PIPE_CAP_NPOT_TEXTURES:
72 case PIPE_CAP_TWO_SIDED_STENCIL:
76 case PIPE_CAP_ANISOTROPIC_FILTER:
78 case PIPE_CAP_POINT_SPRITE:
80 case PIPE_CAP_MAX_RENDER_TARGETS:
81 return PIPE_MAX_COLOR_BUFS;
82 case PIPE_CAP_OCCLUSION_QUERY:
84 case PIPE_CAP_TIMER_QUERY:
86 case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
88 case PIPE_CAP_TEXTURE_SHADOW_MAP:
90 case PIPE_CAP_TEXTURE_SWIZZLE:
92 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
93 return SP_MAX_TEXTURE_2D_LEVELS;
94 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
95 return SP_MAX_TEXTURE_3D_LEVELS;
96 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
97 return SP_MAX_TEXTURE_2D_LEVELS;
98 case PIPE_CAP_BLEND_EQUATION_SEPARATE:
100 case PIPE_CAP_INDEP_BLEND_ENABLE:
102 case PIPE_CAP_INDEP_BLEND_FUNC:
104 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
105 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
106 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
107 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
109 case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
110 return PIPE_MAX_SO_BUFFERS;
111 case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
112 case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
114 case PIPE_CAP_PRIMITIVE_RESTART:
116 case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
118 case PIPE_CAP_SHADER_STENCIL_EXPORT:
120 case PIPE_CAP_TGSI_INSTANCEID:
121 case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
123 case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
124 return 256; /* for GL3 */
125 case PIPE_CAP_MIN_TEXEL_OFFSET:
127 case PIPE_CAP_MAX_TEXEL_OFFSET:
129 case PIPE_CAP_CONDITIONAL_RENDER:
131 case PIPE_CAP_FRAGMENT_COLOR_CLAMP_CONTROL:
139 softpipe_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
142 struct softpipe_screen *sp_screen = softpipe_screen(screen);
146 case PIPE_SHADER_FRAGMENT:
147 return tgsi_exec_get_shader_param(param);
148 case PIPE_SHADER_VERTEX:
149 case PIPE_SHADER_GEOMETRY:
151 case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
153 if (sp_screen->use_llvm)
154 /* Softpipe doesn't yet know how to tell draw/llvm about textures */
157 return PIPE_MAX_VERTEX_SAMPLERS;
158 case PIPE_SHADER_CAP_INTEGERS:
159 #ifdef HAVE_LLVM /* gallivm doesn't support integers yet */
160 if (sp_screen->use_llvm)
165 return draw_get_shader_param(shader, param);
173 softpipe_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
176 case PIPE_CAPF_MAX_LINE_WIDTH:
178 case PIPE_CAPF_MAX_LINE_WIDTH_AA:
179 return 255.0; /* arbitrary */
180 case PIPE_CAPF_MAX_POINT_WIDTH:
182 case PIPE_CAPF_MAX_POINT_WIDTH_AA:
183 return 255.0; /* arbitrary */
184 case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
186 case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
187 return 16.0; /* arbitrary */
194 softpipe_get_video_param(struct pipe_screen *screen,
195 enum pipe_video_profile profile,
196 enum pipe_video_cap param)
199 case PIPE_VIDEO_CAP_SUPPORTED:
200 return vl_profile_supported(screen, profile);
201 case PIPE_VIDEO_CAP_NPOT_TEXTURES:
203 case PIPE_VIDEO_CAP_MAX_WIDTH:
204 case PIPE_VIDEO_CAP_MAX_HEIGHT:
205 return vl_video_buffer_max_size(screen);
212 * Query format support for creating a texture, drawing surface, etc.
213 * \param format the format to test
214 * \param type one of PIPE_TEXTURE, PIPE_SURFACE
217 softpipe_is_format_supported( struct pipe_screen *screen,
218 enum pipe_format format,
219 enum pipe_texture_target target,
220 unsigned sample_count,
223 struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
224 const struct util_format_description *format_desc;
226 assert(target == PIPE_BUFFER ||
227 target == PIPE_TEXTURE_1D ||
228 target == PIPE_TEXTURE_1D_ARRAY ||
229 target == PIPE_TEXTURE_2D ||
230 target == PIPE_TEXTURE_2D_ARRAY ||
231 target == PIPE_TEXTURE_RECT ||
232 target == PIPE_TEXTURE_3D ||
233 target == PIPE_TEXTURE_CUBE);
235 format_desc = util_format_description(format);
239 if (sample_count > 1)
242 if (bind & (PIPE_BIND_DISPLAY_TARGET |
245 if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
249 if (bind & PIPE_BIND_RENDER_TARGET) {
250 if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
254 * Although possible, it is unnatural to render into compressed or YUV
255 * surfaces. So disable these here to avoid going into weird paths
256 * inside the state trackers.
258 if (format_desc->block.width != 1 ||
259 format_desc->block.height != 1)
263 if (bind & PIPE_BIND_DEPTH_STENCIL) {
264 if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
269 * All other operations (sampling, transfer, etc).
272 if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
273 return util_format_s3tc_enabled;
277 * Everything else should be supported by u_format.
284 softpipe_destroy_screen( struct pipe_screen *screen )
286 struct softpipe_screen *sp_screen = softpipe_screen(screen);
287 struct sw_winsys *winsys = sp_screen->winsys;
290 winsys->destroy(winsys);
296 /* This is often overriden by the co-state tracker.
299 softpipe_flush_frontbuffer(struct pipe_screen *_screen,
300 struct pipe_resource *resource,
301 unsigned level, unsigned layer,
302 void *context_private)
304 struct softpipe_screen *screen = softpipe_screen(_screen);
305 struct sw_winsys *winsys = screen->winsys;
306 struct softpipe_resource *texture = softpipe_resource(resource);
310 winsys->displaytarget_display(winsys, texture->dt, context_private);
314 * Create a new pipe_screen object
315 * Note: we're not presently subclassing pipe_screen (no softpipe_screen).
318 softpipe_create_screen(struct sw_winsys *winsys)
320 struct softpipe_screen *screen = CALLOC_STRUCT(softpipe_screen);
325 screen->winsys = winsys;
327 screen->base.winsys = NULL;
328 screen->base.destroy = softpipe_destroy_screen;
330 screen->base.get_name = softpipe_get_name;
331 screen->base.get_vendor = softpipe_get_vendor;
332 screen->base.get_param = softpipe_get_param;
333 screen->base.get_shader_param = softpipe_get_shader_param;
334 screen->base.get_paramf = softpipe_get_paramf;
335 screen->base.get_video_param = softpipe_get_video_param;
336 screen->base.is_format_supported = softpipe_is_format_supported;
337 screen->base.is_video_format_supported = vl_video_buffer_is_format_supported;
338 screen->base.context_create = softpipe_create_context;
339 screen->base.flush_frontbuffer = softpipe_flush_frontbuffer;
341 screen->use_llvm = debug_get_option_use_llvm();
343 util_format_s3tc_init();
345 softpipe_init_screen_texture_funcs(&screen->base);
346 softpipe_init_screen_fence_funcs(&screen->base);
348 return &screen->base;