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_math.h"
31 #include "util/u_cpu_detect.h"
32 #include "util/u_format.h"
33 #include "util/u_format_s3tc.h"
34 #include "pipe/p_defines.h"
35 #include "pipe/p_screen.h"
36 #include "draw/draw_context.h"
38 #include "lp_texture.h"
41 #include "lp_screen.h"
42 #include "lp_context.h"
44 #include "lp_public.h"
45 #include "lp_limits.h"
48 #include "state_tracker/sw_winsys.h"
53 static const struct debug_named_value lp_debug_flags[] = {
54 { "pipe", DEBUG_PIPE, NULL },
55 { "tgsi", DEBUG_TGSI, NULL },
56 { "tex", DEBUG_TEX, NULL },
57 { "setup", DEBUG_SETUP, NULL },
58 { "rast", DEBUG_RAST, NULL },
59 { "query", DEBUG_QUERY, NULL },
60 { "screen", DEBUG_SCREEN, NULL },
61 { "show_tiles", DEBUG_SHOW_TILES, NULL },
62 { "show_subtiles", DEBUG_SHOW_SUBTILES, NULL },
63 { "counters", DEBUG_COUNTERS, NULL },
64 { "scene", DEBUG_SCENE, NULL },
65 { "fence", DEBUG_FENCE, NULL },
66 { "mem", DEBUG_MEM, NULL },
67 { "fs", DEBUG_FS, NULL },
73 static const struct debug_named_value lp_perf_flags[] = {
74 { "texmem", PERF_TEX_MEM, NULL },
75 { "no_mipmap", PERF_NO_MIPMAPS, NULL },
76 { "no_linear", PERF_NO_LINEAR, NULL },
77 { "no_mip_linear", PERF_NO_MIP_LINEAR, NULL },
78 { "no_tex", PERF_NO_TEX, NULL },
79 { "no_blend", PERF_NO_BLEND, NULL },
80 { "no_depth", PERF_NO_DEPTH, NULL },
81 { "no_alphatest", PERF_NO_ALPHATEST, NULL },
87 llvmpipe_get_vendor(struct pipe_screen *screen)
89 return "VMware, Inc.";
94 llvmpipe_get_name(struct pipe_screen *screen)
101 llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
104 case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
105 return PIPE_MAX_SAMPLERS;
106 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
107 /* At this time, the draw module and llvmpipe driver only
108 * support vertex shader texture lookups when LLVM is enabled in
111 if (debug_get_bool_option("DRAW_USE_LLVM", TRUE))
112 return PIPE_MAX_VERTEX_SAMPLERS;
115 case PIPE_CAP_MAX_COMBINED_SAMPLERS:
116 return PIPE_MAX_SAMPLERS + PIPE_MAX_VERTEX_SAMPLERS;
117 case PIPE_CAP_NPOT_TEXTURES:
119 case PIPE_CAP_TWO_SIDED_STENCIL:
125 case PIPE_CAP_ANISOTROPIC_FILTER:
127 case PIPE_CAP_POINT_SPRITE:
129 case PIPE_CAP_MAX_RENDER_TARGETS:
130 return PIPE_MAX_COLOR_BUFS;
131 case PIPE_CAP_OCCLUSION_QUERY:
133 case PIPE_CAP_TIMER_QUERY:
135 case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
137 case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
139 case PIPE_CAP_TEXTURE_SHADOW_MAP:
141 case PIPE_CAP_TEXTURE_SWIZZLE:
143 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
144 return LP_MAX_TEXTURE_2D_LEVELS;
145 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
146 return LP_MAX_TEXTURE_3D_LEVELS;
147 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
148 return LP_MAX_TEXTURE_2D_LEVELS;
149 case PIPE_CAP_BLEND_EQUATION_SEPARATE:
151 case PIPE_CAP_INDEP_BLEND_ENABLE:
153 case PIPE_CAP_INDEP_BLEND_FUNC:
155 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
156 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
158 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
159 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
161 case PIPE_CAP_PRIMITIVE_RESTART:
163 case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
165 case PIPE_CAP_DEPTH_CLAMP:
167 case PIPE_CAP_TGSI_INSTANCEID:
168 case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
169 case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
177 llvmpipe_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
181 case PIPE_SHADER_FRAGMENT:
182 return tgsi_exec_get_shader_param(param);
183 case PIPE_SHADER_VERTEX:
184 case PIPE_SHADER_GEOMETRY:
185 return draw_get_shader_param(shader, param);
192 llvmpipe_get_paramf(struct pipe_screen *screen, enum pipe_cap param)
195 case PIPE_CAP_MAX_LINE_WIDTH:
197 case PIPE_CAP_MAX_LINE_WIDTH_AA:
198 return 255.0; /* arbitrary */
199 case PIPE_CAP_MAX_POINT_WIDTH:
201 case PIPE_CAP_MAX_POINT_WIDTH_AA:
202 return 255.0; /* arbitrary */
203 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
204 return 16.0; /* not actually signficant at this time */
205 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
206 return 16.0; /* arbitrary */
207 case PIPE_CAP_GUARD_BAND_LEFT:
208 case PIPE_CAP_GUARD_BAND_TOP:
209 case PIPE_CAP_GUARD_BAND_RIGHT:
210 case PIPE_CAP_GUARD_BAND_BOTTOM:
220 * Query format support for creating a texture, drawing surface, etc.
221 * \param format the format to test
222 * \param type one of PIPE_TEXTURE, PIPE_SURFACE
225 llvmpipe_is_format_supported( struct pipe_screen *_screen,
226 enum pipe_format format,
227 enum pipe_texture_target target,
228 unsigned sample_count,
231 struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
232 struct sw_winsys *winsys = screen->winsys;
233 const struct util_format_description *format_desc;
235 format_desc = util_format_description(format);
239 assert(target == PIPE_BUFFER ||
240 target == PIPE_TEXTURE_1D ||
241 target == PIPE_TEXTURE_2D ||
242 target == PIPE_TEXTURE_RECT ||
243 target == PIPE_TEXTURE_3D ||
244 target == PIPE_TEXTURE_CUBE);
246 if (sample_count > 1)
249 if (bind & PIPE_BIND_RENDER_TARGET) {
250 if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
253 if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
256 if (format_desc->block.width != 1 ||
257 format_desc->block.height != 1)
261 if (bind & PIPE_BIND_DISPLAY_TARGET) {
262 if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
266 if (bind & PIPE_BIND_DEPTH_STENCIL) {
267 if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
270 if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
273 /* FIXME: Temporary restriction. See lp_state_fs.c. */
274 if (format_desc->block.bits != 32)
278 if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
279 return util_format_s3tc_enabled;
282 /* u_format doesn't support RGTC yet */
283 if (format_desc->layout == UTIL_FORMAT_LAYOUT_RGTC) {
288 * Everything else should be supported by u_format.
297 llvmpipe_flush_frontbuffer(struct pipe_screen *_screen,
298 struct pipe_resource *resource,
299 unsigned level, unsigned layer,
300 void *context_private)
302 struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
303 struct sw_winsys *winsys = screen->winsys;
304 struct llvmpipe_resource *texture = llvmpipe_resource(resource);
308 winsys->displaytarget_display(winsys, texture->dt, context_private);
313 llvmpipe_destroy_screen( struct pipe_screen *_screen )
315 struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
316 struct sw_winsys *winsys = screen->winsys;
319 lp_rast_destroy(screen->rast);
321 lp_jit_screen_cleanup(screen);
324 winsys->destroy(winsys);
326 pipe_mutex_destroy(screen->rast_mutex);
335 * Fence reference counting.
338 llvmpipe_fence_reference(struct pipe_screen *screen,
339 struct pipe_fence_handle **ptr,
340 struct pipe_fence_handle *fence)
342 struct lp_fence **old = (struct lp_fence **) ptr;
343 struct lp_fence *f = (struct lp_fence *) fence;
345 lp_fence_reference(old, f);
350 * Has the fence been executed/finished?
353 llvmpipe_fence_signalled(struct pipe_screen *screen,
354 struct pipe_fence_handle *fence)
356 struct lp_fence *f = (struct lp_fence *) fence;
357 return lp_fence_signalled(f);
362 * Wait for the fence to finish.
365 llvmpipe_fence_finish(struct pipe_screen *screen,
366 struct pipe_fence_handle *fence_handle,
369 struct lp_fence *f = (struct lp_fence *) fence_handle;
378 * Create a new pipe_screen object
379 * Note: we're not presently subclassing pipe_screen (no llvmpipe_screen).
382 llvmpipe_create_screen(struct sw_winsys *winsys)
384 struct llvmpipe_screen *screen;
387 /* require SSE2 due to LLVM PR6960. */
389 if (!util_cpu_caps.has_sse2)
393 screen = CALLOC_STRUCT(llvmpipe_screen);
396 LP_DEBUG = debug_get_flags_option("LP_DEBUG", lp_debug_flags, 0 );
399 LP_PERF = debug_get_flags_option("LP_PERF", lp_perf_flags, 0 );
404 screen->winsys = winsys;
406 screen->base.destroy = llvmpipe_destroy_screen;
408 screen->base.get_name = llvmpipe_get_name;
409 screen->base.get_vendor = llvmpipe_get_vendor;
410 screen->base.get_param = llvmpipe_get_param;
411 screen->base.get_shader_param = llvmpipe_get_shader_param;
412 screen->base.get_paramf = llvmpipe_get_paramf;
413 screen->base.is_format_supported = llvmpipe_is_format_supported;
415 screen->base.context_create = llvmpipe_create_context;
416 screen->base.flush_frontbuffer = llvmpipe_flush_frontbuffer;
417 screen->base.fence_reference = llvmpipe_fence_reference;
418 screen->base.fence_signalled = llvmpipe_fence_signalled;
419 screen->base.fence_finish = llvmpipe_fence_finish;
421 llvmpipe_init_screen_resource_funcs(&screen->base);
423 lp_jit_screen_init(screen);
425 screen->num_threads = util_cpu_caps.nr_cpus > 1 ? util_cpu_caps.nr_cpus : 0;
426 #ifdef PIPE_SUBSYSTEM_EMBEDDED
427 screen->num_threads = 0;
429 screen->num_threads = debug_get_num_option("LP_NUM_THREADS", screen->num_threads);
430 screen->num_threads = MIN2(screen->num_threads, LP_MAX_THREADS);
432 screen->rast = lp_rast_create(screen->num_threads);
434 lp_jit_screen_cleanup(screen);
438 pipe_mutex_init(screen->rast_mutex);
440 util_format_s3tc_init();
442 return &screen->base;