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1 /****************************************************************************
2  * Copyright (C) 2015 Intel Corporation.   All Rights Reserved.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21  * IN THE SOFTWARE.
22  ***************************************************************************/
23 
24 #include "swr_context.h"
25 #include "swr_public.h"
26 #include "swr_screen.h"
27 #include "swr_resource.h"
28 #include "swr_fence.h"
29 #include "gen_knobs.h"
30 
31 #include "pipe/p_screen.h"
32 #include "pipe/p_defines.h"
33 #include "util/u_memory.h"
34 #include "util/u_format.h"
35 #include "util/u_inlines.h"
36 #include "util/u_cpu_detect.h"
37 #include "util/u_format_s3tc.h"
38 #include "util/u_string.h"
39 
40 #include "state_tracker/sw_winsys.h"
41 
42 #include "jit_api.h"
43 
44 #include "memory/TilingFunctions.h"
45 
46 #include <stdio.h>
47 #include <map>
48 
49 /* MSVC case instensitive compare */
50 #if defined(PIPE_CC_MSVC)
51    #define strcasecmp lstrcmpiA
52 #endif
53 
54 /*
55  * Max texture sizes
56  * XXX Check max texture size values against core and sampler.
57  */
58 #define SWR_MAX_TEXTURE_SIZE (4 * 1024 * 1024 * 1024ULL) /* 4GB */
59 #define SWR_MAX_TEXTURE_2D_LEVELS 14  /* 8K x 8K for now */
60 #define SWR_MAX_TEXTURE_3D_LEVELS 12  /* 2K x 2K x 2K for now */
61 #define SWR_MAX_TEXTURE_CUBE_LEVELS 14  /* 8K x 8K for now */
62 #define SWR_MAX_TEXTURE_ARRAY_LAYERS 512 /* 8K x 512 / 8K x 8K x 512 */
63 
64 static const char *
swr_get_name(struct pipe_screen * screen)65 swr_get_name(struct pipe_screen *screen)
66 {
67    static char buf[100];
68    util_snprintf(buf, sizeof(buf), "SWR (LLVM %u.%u, %u bits)",
69                  HAVE_LLVM >> 8, HAVE_LLVM & 0xff,
70                  lp_native_vector_width );
71    return buf;
72 }
73 
74 static const char *
swr_get_vendor(struct pipe_screen * screen)75 swr_get_vendor(struct pipe_screen *screen)
76 {
77    return "Intel Corporation";
78 }
79 
80 static boolean
swr_is_format_supported(struct pipe_screen * screen,enum pipe_format format,enum pipe_texture_target target,unsigned sample_count,unsigned bind)81 swr_is_format_supported(struct pipe_screen *screen,
82                         enum pipe_format format,
83                         enum pipe_texture_target target,
84                         unsigned sample_count,
85                         unsigned bind)
86 {
87    struct sw_winsys *winsys = swr_screen(screen)->winsys;
88    const struct util_format_description *format_desc;
89 
90    assert(target == PIPE_BUFFER || target == PIPE_TEXTURE_1D
91           || target == PIPE_TEXTURE_1D_ARRAY
92           || target == PIPE_TEXTURE_2D
93           || target == PIPE_TEXTURE_2D_ARRAY
94           || target == PIPE_TEXTURE_RECT
95           || target == PIPE_TEXTURE_3D
96           || target == PIPE_TEXTURE_CUBE
97           || target == PIPE_TEXTURE_CUBE_ARRAY);
98 
99    format_desc = util_format_description(format);
100    if (!format_desc)
101       return FALSE;
102 
103    if (sample_count > 1)
104       return FALSE;
105 
106    if (bind
107        & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT | PIPE_BIND_SHARED)) {
108       if (!winsys->is_displaytarget_format_supported(winsys, bind, format))
109          return FALSE;
110    }
111 
112    if (bind & PIPE_BIND_RENDER_TARGET) {
113       if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
114          return FALSE;
115 
116       if (mesa_to_swr_format(format) == (SWR_FORMAT)-1)
117          return FALSE;
118 
119       /*
120        * Although possible, it is unnatural to render into compressed or YUV
121        * surfaces. So disable these here to avoid going into weird paths
122        * inside the state trackers.
123        */
124       if (format_desc->block.width != 1 || format_desc->block.height != 1)
125          return FALSE;
126    }
127 
128    if (bind & PIPE_BIND_DEPTH_STENCIL) {
129       if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
130          return FALSE;
131 
132       if (mesa_to_swr_format(format) == (SWR_FORMAT)-1)
133          return FALSE;
134    }
135 
136    if (format_desc->layout == UTIL_FORMAT_LAYOUT_BPTC ||
137        format_desc->layout == UTIL_FORMAT_LAYOUT_ASTC) {
138       return FALSE;
139    }
140 
141    if (format_desc->layout == UTIL_FORMAT_LAYOUT_ETC &&
142        format != PIPE_FORMAT_ETC1_RGB8) {
143       return FALSE;
144    }
145 
146    if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
147       return util_format_s3tc_enabled;
148    }
149 
150    return TRUE;
151 }
152 
153 static int
swr_get_param(struct pipe_screen * screen,enum pipe_cap param)154 swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
155 {
156    switch (param) {
157       /* limits */
158    case PIPE_CAP_MAX_RENDER_TARGETS:
159       return PIPE_MAX_COLOR_BUFS;
160    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
161       return SWR_MAX_TEXTURE_2D_LEVELS;
162    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
163       return SWR_MAX_TEXTURE_3D_LEVELS;
164    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
165       return SWR_MAX_TEXTURE_CUBE_LEVELS;
166    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
167       return MAX_SO_STREAMS;
168    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
169    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
170       return MAX_ATTRIBUTES * 4;
171    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
172    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
173       return 1024;
174    case PIPE_CAP_MAX_VERTEX_STREAMS:
175       return 1;
176    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
177       return 2048;
178    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
179       return SWR_MAX_TEXTURE_ARRAY_LAYERS;
180    case PIPE_CAP_MIN_TEXEL_OFFSET:
181       return -8;
182    case PIPE_CAP_MAX_TEXEL_OFFSET:
183       return 7;
184    case PIPE_CAP_GLSL_FEATURE_LEVEL:
185       return 330;
186    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
187       return 16;
188    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
189       return 64;
190    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
191       return 65536;
192    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
193       return 0;
194    case PIPE_CAP_MAX_VIEWPORTS:
195       return 1;
196    case PIPE_CAP_ENDIANNESS:
197       return PIPE_ENDIAN_NATIVE;
198    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
199    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
200       return 0;
201 
202       /* supported features */
203    case PIPE_CAP_NPOT_TEXTURES:
204    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
205    case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
206    case PIPE_CAP_TWO_SIDED_STENCIL:
207    case PIPE_CAP_SM3:
208    case PIPE_CAP_POINT_SPRITE:
209    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
210    case PIPE_CAP_OCCLUSION_QUERY:
211    case PIPE_CAP_QUERY_TIME_ELAPSED:
212    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
213    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
214    case PIPE_CAP_TEXTURE_SHADOW_MAP:
215    case PIPE_CAP_TEXTURE_SWIZZLE:
216    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
217    case PIPE_CAP_INDEP_BLEND_ENABLE:
218    case PIPE_CAP_INDEP_BLEND_FUNC:
219    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
220    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
221    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
222    case PIPE_CAP_DEPTH_CLIP_DISABLE:
223    case PIPE_CAP_PRIMITIVE_RESTART:
224    case PIPE_CAP_TGSI_INSTANCEID:
225    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
226    case PIPE_CAP_START_INSTANCE:
227    case PIPE_CAP_SEAMLESS_CUBE_MAP:
228    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
229    case PIPE_CAP_CONDITIONAL_RENDER:
230    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
231    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
232    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
233    case PIPE_CAP_USER_VERTEX_BUFFERS:
234    case PIPE_CAP_USER_INDEX_BUFFERS:
235    case PIPE_CAP_USER_CONSTANT_BUFFERS:
236    case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
237    case PIPE_CAP_QUERY_TIMESTAMP:
238    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
239    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
240    case PIPE_CAP_FAKE_SW_MSAA:
241    case PIPE_CAP_DRAW_INDIRECT:
242    case PIPE_CAP_UMA:
243    case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
244    case PIPE_CAP_CLIP_HALFZ:
245    case PIPE_CAP_POLYGON_OFFSET_CLAMP:
246    case PIPE_CAP_DEPTH_BOUNDS_TEST:
247    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
248    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
249    case PIPE_CAP_CULL_DISTANCE:
250    case PIPE_CAP_CUBE_MAP_ARRAY:
251       return 1;
252 
253       /* unsupported features */
254    case PIPE_CAP_ANISOTROPIC_FILTER:
255    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
256    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
257    case PIPE_CAP_SHADER_STENCIL_EXPORT:
258    case PIPE_CAP_TEXTURE_BARRIER:
259    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
260    case PIPE_CAP_VERTEX_COLOR_CLAMPED:
261    case PIPE_CAP_COMPUTE:
262    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
263    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
264    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
265    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
266    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
267    case PIPE_CAP_TEXTURE_MULTISAMPLE:
268    case PIPE_CAP_TGSI_TEXCOORD:
269    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
270    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
271    case PIPE_CAP_TEXTURE_GATHER_SM5:
272    case PIPE_CAP_TEXTURE_QUERY_LOD:
273    case PIPE_CAP_SAMPLE_SHADING:
274    case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
275    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
276    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
277    case PIPE_CAP_SAMPLER_VIEW_TARGET:
278    case PIPE_CAP_VERTEXID_NOBASE:
279    case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
280    case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
281    case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
282    case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
283    case PIPE_CAP_TGSI_TXQS:
284    case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
285    case PIPE_CAP_SHAREABLE_SHADERS:
286    case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
287    case PIPE_CAP_CLEAR_TEXTURE:
288    case PIPE_CAP_DRAW_PARAMETERS:
289    case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
290    case PIPE_CAP_MULTI_DRAW_INDIRECT:
291    case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
292    case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
293    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
294    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
295    case PIPE_CAP_INVALIDATE_BUFFER:
296    case PIPE_CAP_GENERATE_MIPMAP:
297    case PIPE_CAP_STRING_MARKER:
298    case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
299    case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
300    case PIPE_CAP_QUERY_BUFFER_OBJECT:
301    case PIPE_CAP_QUERY_MEMORY_INFO:
302    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
303    case PIPE_CAP_PCI_GROUP:
304    case PIPE_CAP_PCI_BUS:
305    case PIPE_CAP_PCI_DEVICE:
306    case PIPE_CAP_PCI_FUNCTION:
307    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
308    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
309    case PIPE_CAP_TGSI_VOTE:
310    case PIPE_CAP_MAX_WINDOW_RECTANGLES:
311    case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
312    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
313    case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
314    case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
315    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
316    case PIPE_CAP_NATIVE_FENCE_FD:
317    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
318    case PIPE_CAP_TGSI_FS_FBFETCH:
319       return 0;
320 
321    case PIPE_CAP_VENDOR_ID:
322       return 0xFFFFFFFF;
323    case PIPE_CAP_DEVICE_ID:
324       return 0xFFFFFFFF;
325    case PIPE_CAP_ACCELERATED:
326       return 0;
327    case PIPE_CAP_VIDEO_MEMORY: {
328       /* XXX: Do we want to return the full amount of system memory ? */
329       uint64_t system_memory;
330 
331       if (!os_get_total_physical_memory(&system_memory))
332          return 0;
333 
334       return (int)(system_memory >> 20);
335    }
336    }
337 
338    /* should only get here on unhandled cases */
339    debug_printf("Unexpected PIPE_CAP %d query\n", param);
340    return 0;
341 }
342 
343 static int
swr_get_shader_param(struct pipe_screen * screen,unsigned shader,enum pipe_shader_cap param)344 swr_get_shader_param(struct pipe_screen *screen,
345                      unsigned shader,
346                      enum pipe_shader_cap param)
347 {
348    if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_FRAGMENT)
349       return gallivm_get_shader_param(param);
350 
351    // Todo: geometry, tesselation, compute
352    return 0;
353 }
354 
355 
356 static float
swr_get_paramf(struct pipe_screen * screen,enum pipe_capf param)357 swr_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
358 {
359    switch (param) {
360    case PIPE_CAPF_MAX_LINE_WIDTH:
361    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
362    case PIPE_CAPF_MAX_POINT_WIDTH:
363       return 255.0; /* arbitrary */
364    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
365       return 0.0;
366    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
367       return 0.0;
368    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
369       return 16.0; /* arbitrary */
370    case PIPE_CAPF_GUARD_BAND_LEFT:
371    case PIPE_CAPF_GUARD_BAND_TOP:
372    case PIPE_CAPF_GUARD_BAND_RIGHT:
373    case PIPE_CAPF_GUARD_BAND_BOTTOM:
374       return 0.0;
375    }
376    /* should only get here on unhandled cases */
377    debug_printf("Unexpected PIPE_CAPF %d query\n", param);
378    return 0.0;
379 }
380 
381 SWR_FORMAT
mesa_to_swr_format(enum pipe_format format)382 mesa_to_swr_format(enum pipe_format format)
383 {
384    static const std::map<pipe_format,SWR_FORMAT> mesa2swr = {
385       /* depth / stencil */
386       {PIPE_FORMAT_Z16_UNORM,              R16_UNORM}, // z
387       {PIPE_FORMAT_Z32_FLOAT,              R32_FLOAT}, // z
388       {PIPE_FORMAT_Z24_UNORM_S8_UINT,      R24_UNORM_X8_TYPELESS}, // z
389       {PIPE_FORMAT_Z24X8_UNORM,            R24_UNORM_X8_TYPELESS}, // z
390       {PIPE_FORMAT_Z32_FLOAT_S8X24_UINT,   R32_FLOAT_X8X24_TYPELESS}, // z
391 
392       /* alpha */
393       {PIPE_FORMAT_A8_UNORM,               A8_UNORM},
394       {PIPE_FORMAT_A16_UNORM,              A16_UNORM},
395       {PIPE_FORMAT_A16_FLOAT,              A16_FLOAT},
396       {PIPE_FORMAT_A32_FLOAT,              A32_FLOAT},
397 
398       /* odd sizes, bgr */
399       {PIPE_FORMAT_B5G6R5_UNORM,           B5G6R5_UNORM},
400       {PIPE_FORMAT_B5G6R5_SRGB,            B5G6R5_UNORM_SRGB},
401       {PIPE_FORMAT_B5G5R5A1_UNORM,         B5G5R5A1_UNORM},
402       {PIPE_FORMAT_B5G5R5X1_UNORM,         B5G5R5X1_UNORM},
403       {PIPE_FORMAT_B4G4R4A4_UNORM,         B4G4R4A4_UNORM},
404       {PIPE_FORMAT_B8G8R8A8_UNORM,         B8G8R8A8_UNORM},
405       {PIPE_FORMAT_B8G8R8A8_SRGB,          B8G8R8A8_UNORM_SRGB},
406       {PIPE_FORMAT_B8G8R8X8_UNORM,         B8G8R8X8_UNORM},
407       {PIPE_FORMAT_B8G8R8X8_SRGB,          B8G8R8X8_UNORM_SRGB},
408 
409       /* rgb10a2 */
410       {PIPE_FORMAT_R10G10B10A2_UNORM,      R10G10B10A2_UNORM},
411       {PIPE_FORMAT_R10G10B10A2_SNORM,      R10G10B10A2_SNORM},
412       {PIPE_FORMAT_R10G10B10A2_USCALED,    R10G10B10A2_USCALED},
413       {PIPE_FORMAT_R10G10B10A2_SSCALED,    R10G10B10A2_SSCALED},
414       {PIPE_FORMAT_R10G10B10A2_UINT,       R10G10B10A2_UINT},
415 
416       /* rgb10x2 */
417       {PIPE_FORMAT_R10G10B10X2_USCALED,    R10G10B10X2_USCALED},
418 
419       /* bgr10a2 */
420       {PIPE_FORMAT_B10G10R10A2_UNORM,      B10G10R10A2_UNORM},
421       {PIPE_FORMAT_B10G10R10A2_SNORM,      B10G10R10A2_SNORM},
422       {PIPE_FORMAT_B10G10R10A2_USCALED,    B10G10R10A2_USCALED},
423       {PIPE_FORMAT_B10G10R10A2_SSCALED,    B10G10R10A2_SSCALED},
424       {PIPE_FORMAT_B10G10R10A2_UINT,       B10G10R10A2_UINT},
425 
426       /* bgr10x2 */
427       {PIPE_FORMAT_B10G10R10X2_UNORM,      B10G10R10X2_UNORM},
428 
429       /* r11g11b10 */
430       {PIPE_FORMAT_R11G11B10_FLOAT,        R11G11B10_FLOAT},
431 
432       /* 32 bits per component */
433       {PIPE_FORMAT_R32_FLOAT,              R32_FLOAT},
434       {PIPE_FORMAT_R32G32_FLOAT,           R32G32_FLOAT},
435       {PIPE_FORMAT_R32G32B32_FLOAT,        R32G32B32_FLOAT},
436       {PIPE_FORMAT_R32G32B32A32_FLOAT,     R32G32B32A32_FLOAT},
437       {PIPE_FORMAT_R32G32B32X32_FLOAT,     R32G32B32X32_FLOAT},
438 
439       {PIPE_FORMAT_R32_USCALED,            R32_USCALED},
440       {PIPE_FORMAT_R32G32_USCALED,         R32G32_USCALED},
441       {PIPE_FORMAT_R32G32B32_USCALED,      R32G32B32_USCALED},
442       {PIPE_FORMAT_R32G32B32A32_USCALED,   R32G32B32A32_USCALED},
443 
444       {PIPE_FORMAT_R32_SSCALED,            R32_SSCALED},
445       {PIPE_FORMAT_R32G32_SSCALED,         R32G32_SSCALED},
446       {PIPE_FORMAT_R32G32B32_SSCALED,      R32G32B32_SSCALED},
447       {PIPE_FORMAT_R32G32B32A32_SSCALED,   R32G32B32A32_SSCALED},
448 
449       {PIPE_FORMAT_R32_UINT,               R32_UINT},
450       {PIPE_FORMAT_R32G32_UINT,            R32G32_UINT},
451       {PIPE_FORMAT_R32G32B32_UINT,         R32G32B32_UINT},
452       {PIPE_FORMAT_R32G32B32A32_UINT,      R32G32B32A32_UINT},
453 
454       {PIPE_FORMAT_R32_SINT,               R32_SINT},
455       {PIPE_FORMAT_R32G32_SINT,            R32G32_SINT},
456       {PIPE_FORMAT_R32G32B32_SINT,         R32G32B32_SINT},
457       {PIPE_FORMAT_R32G32B32A32_SINT,      R32G32B32A32_SINT},
458 
459       /* 16 bits per component */
460       {PIPE_FORMAT_R16_UNORM,              R16_UNORM},
461       {PIPE_FORMAT_R16G16_UNORM,           R16G16_UNORM},
462       {PIPE_FORMAT_R16G16B16_UNORM,        R16G16B16_UNORM},
463       {PIPE_FORMAT_R16G16B16A16_UNORM,     R16G16B16A16_UNORM},
464       {PIPE_FORMAT_R16G16B16X16_UNORM,     R16G16B16X16_UNORM},
465 
466       {PIPE_FORMAT_R16_USCALED,            R16_USCALED},
467       {PIPE_FORMAT_R16G16_USCALED,         R16G16_USCALED},
468       {PIPE_FORMAT_R16G16B16_USCALED,      R16G16B16_USCALED},
469       {PIPE_FORMAT_R16G16B16A16_USCALED,   R16G16B16A16_USCALED},
470 
471       {PIPE_FORMAT_R16_SNORM,              R16_SNORM},
472       {PIPE_FORMAT_R16G16_SNORM,           R16G16_SNORM},
473       {PIPE_FORMAT_R16G16B16_SNORM,        R16G16B16_SNORM},
474       {PIPE_FORMAT_R16G16B16A16_SNORM,     R16G16B16A16_SNORM},
475 
476       {PIPE_FORMAT_R16_SSCALED,            R16_SSCALED},
477       {PIPE_FORMAT_R16G16_SSCALED,         R16G16_SSCALED},
478       {PIPE_FORMAT_R16G16B16_SSCALED,      R16G16B16_SSCALED},
479       {PIPE_FORMAT_R16G16B16A16_SSCALED,   R16G16B16A16_SSCALED},
480 
481       {PIPE_FORMAT_R16_UINT,               R16_UINT},
482       {PIPE_FORMAT_R16G16_UINT,            R16G16_UINT},
483       {PIPE_FORMAT_R16G16B16_UINT,         R16G16B16_UINT},
484       {PIPE_FORMAT_R16G16B16A16_UINT,      R16G16B16A16_UINT},
485 
486       {PIPE_FORMAT_R16_SINT,               R16_SINT},
487       {PIPE_FORMAT_R16G16_SINT,            R16G16_SINT},
488       {PIPE_FORMAT_R16G16B16_SINT,         R16G16B16_SINT},
489       {PIPE_FORMAT_R16G16B16A16_SINT,      R16G16B16A16_SINT},
490 
491       {PIPE_FORMAT_R16_FLOAT,              R16_FLOAT},
492       {PIPE_FORMAT_R16G16_FLOAT,           R16G16_FLOAT},
493       {PIPE_FORMAT_R16G16B16_FLOAT,        R16G16B16_FLOAT},
494       {PIPE_FORMAT_R16G16B16A16_FLOAT,     R16G16B16A16_FLOAT},
495       {PIPE_FORMAT_R16G16B16X16_FLOAT,     R16G16B16X16_FLOAT},
496 
497       /* 8 bits per component */
498       {PIPE_FORMAT_R8_UNORM,               R8_UNORM},
499       {PIPE_FORMAT_R8G8_UNORM,             R8G8_UNORM},
500       {PIPE_FORMAT_R8G8B8_UNORM,           R8G8B8_UNORM},
501       {PIPE_FORMAT_R8G8B8_SRGB,            R8G8B8_UNORM_SRGB},
502       {PIPE_FORMAT_R8G8B8A8_UNORM,         R8G8B8A8_UNORM},
503       {PIPE_FORMAT_R8G8B8A8_SRGB,          R8G8B8A8_UNORM_SRGB},
504       {PIPE_FORMAT_R8G8B8X8_UNORM,         R8G8B8X8_UNORM},
505       {PIPE_FORMAT_R8G8B8X8_SRGB,          R8G8B8X8_UNORM_SRGB},
506 
507       {PIPE_FORMAT_R8_USCALED,             R8_USCALED},
508       {PIPE_FORMAT_R8G8_USCALED,           R8G8_USCALED},
509       {PIPE_FORMAT_R8G8B8_USCALED,         R8G8B8_USCALED},
510       {PIPE_FORMAT_R8G8B8A8_USCALED,       R8G8B8A8_USCALED},
511 
512       {PIPE_FORMAT_R8_SNORM,               R8_SNORM},
513       {PIPE_FORMAT_R8G8_SNORM,             R8G8_SNORM},
514       {PIPE_FORMAT_R8G8B8_SNORM,           R8G8B8_SNORM},
515       {PIPE_FORMAT_R8G8B8A8_SNORM,         R8G8B8A8_SNORM},
516 
517       {PIPE_FORMAT_R8_SSCALED,             R8_SSCALED},
518       {PIPE_FORMAT_R8G8_SSCALED,           R8G8_SSCALED},
519       {PIPE_FORMAT_R8G8B8_SSCALED,         R8G8B8_SSCALED},
520       {PIPE_FORMAT_R8G8B8A8_SSCALED,       R8G8B8A8_SSCALED},
521 
522       {PIPE_FORMAT_R8_UINT,                R8_UINT},
523       {PIPE_FORMAT_R8G8_UINT,              R8G8_UINT},
524       {PIPE_FORMAT_R8G8B8_UINT,            R8G8B8_UINT},
525       {PIPE_FORMAT_R8G8B8A8_UINT,          R8G8B8A8_UINT},
526 
527       {PIPE_FORMAT_R8_SINT,                R8_SINT},
528       {PIPE_FORMAT_R8G8_SINT,              R8G8_SINT},
529       {PIPE_FORMAT_R8G8B8_SINT,            R8G8B8_SINT},
530       {PIPE_FORMAT_R8G8B8A8_SINT,          R8G8B8A8_SINT},
531 
532       /* These formats are valid for vertex data, but should not be used
533        * for render targets.
534        */
535 
536       {PIPE_FORMAT_R32_FIXED,              R32_SFIXED},
537       {PIPE_FORMAT_R32G32_FIXED,           R32G32_SFIXED},
538       {PIPE_FORMAT_R32G32B32_FIXED,        R32G32B32_SFIXED},
539       {PIPE_FORMAT_R32G32B32A32_FIXED,     R32G32B32A32_SFIXED},
540 
541       {PIPE_FORMAT_R64_FLOAT,              R64_FLOAT},
542       {PIPE_FORMAT_R64G64_FLOAT,           R64G64_FLOAT},
543       {PIPE_FORMAT_R64G64B64_FLOAT,        R64G64B64_FLOAT},
544       {PIPE_FORMAT_R64G64B64A64_FLOAT,     R64G64B64A64_FLOAT},
545 
546       /* These formats have entries in SWR but don't have Load/StoreTile
547        * implementations. That means these aren't renderable, and thus having
548        * a mapping entry here is detrimental.
549        */
550       /*
551 
552       {PIPE_FORMAT_L8_UNORM,               L8_UNORM},
553       {PIPE_FORMAT_I8_UNORM,               I8_UNORM},
554       {PIPE_FORMAT_L8A8_UNORM,             L8A8_UNORM},
555       {PIPE_FORMAT_L16_UNORM,              L16_UNORM},
556       {PIPE_FORMAT_UYVY,                   YCRCB_SWAPUVY},
557 
558       {PIPE_FORMAT_L8_SRGB,                L8_UNORM_SRGB},
559       {PIPE_FORMAT_L8A8_SRGB,              L8A8_UNORM_SRGB},
560 
561       {PIPE_FORMAT_DXT1_RGBA,              BC1_UNORM},
562       {PIPE_FORMAT_DXT3_RGBA,              BC2_UNORM},
563       {PIPE_FORMAT_DXT5_RGBA,              BC3_UNORM},
564 
565       {PIPE_FORMAT_DXT1_SRGBA,             BC1_UNORM_SRGB},
566       {PIPE_FORMAT_DXT3_SRGBA,             BC2_UNORM_SRGB},
567       {PIPE_FORMAT_DXT5_SRGBA,             BC3_UNORM_SRGB},
568 
569       {PIPE_FORMAT_RGTC1_UNORM,            BC4_UNORM},
570       {PIPE_FORMAT_RGTC1_SNORM,            BC4_SNORM},
571       {PIPE_FORMAT_RGTC2_UNORM,            BC5_UNORM},
572       {PIPE_FORMAT_RGTC2_SNORM,            BC5_SNORM},
573 
574       {PIPE_FORMAT_L16A16_UNORM,           L16A16_UNORM},
575       {PIPE_FORMAT_I16_UNORM,              I16_UNORM},
576       {PIPE_FORMAT_L16_FLOAT,              L16_FLOAT},
577       {PIPE_FORMAT_L16A16_FLOAT,           L16A16_FLOAT},
578       {PIPE_FORMAT_I16_FLOAT,              I16_FLOAT},
579       {PIPE_FORMAT_L32_FLOAT,              L32_FLOAT},
580       {PIPE_FORMAT_L32A32_FLOAT,           L32A32_FLOAT},
581       {PIPE_FORMAT_I32_FLOAT,              I32_FLOAT},
582 
583       {PIPE_FORMAT_I8_UINT,                I8_UINT},
584       {PIPE_FORMAT_L8_UINT,                L8_UINT},
585       {PIPE_FORMAT_L8A8_UINT,              L8A8_UINT},
586 
587       {PIPE_FORMAT_I8_SINT,                I8_SINT},
588       {PIPE_FORMAT_L8_SINT,                L8_SINT},
589       {PIPE_FORMAT_L8A8_SINT,              L8A8_SINT},
590 
591       */
592    };
593 
594    auto it = mesa2swr.find(format);
595    if (it == mesa2swr.end())
596       return (SWR_FORMAT)-1;
597    else
598       return it->second;
599 }
600 
601 static boolean
swr_displaytarget_layout(struct swr_screen * screen,struct swr_resource * res)602 swr_displaytarget_layout(struct swr_screen *screen, struct swr_resource *res)
603 {
604    struct sw_winsys *winsys = screen->winsys;
605    struct sw_displaytarget *dt;
606 
607    const unsigned width = align(res->swr.width, res->swr.halign);
608    const unsigned height = align(res->swr.height, res->swr.valign);
609 
610    UINT stride;
611    dt = winsys->displaytarget_create(winsys,
612                                      res->base.bind,
613                                      res->base.format,
614                                      width, height,
615                                      64, NULL,
616                                      &stride);
617 
618    if (dt == NULL)
619       return FALSE;
620 
621    void *map = winsys->displaytarget_map(winsys, dt, 0);
622 
623    res->display_target = dt;
624    res->swr.pBaseAddress = (uint8_t*) map;
625 
626    /* Clear the display target surface */
627    if (map)
628       memset(map, 0, height * stride);
629 
630    winsys->displaytarget_unmap(winsys, dt);
631 
632    return TRUE;
633 }
634 
635 static bool
swr_texture_layout(struct swr_screen * screen,struct swr_resource * res,boolean allocate)636 swr_texture_layout(struct swr_screen *screen,
637                    struct swr_resource *res,
638                    boolean allocate)
639 {
640    struct pipe_resource *pt = &res->base;
641 
642    pipe_format fmt = pt->format;
643    const struct util_format_description *desc = util_format_description(fmt);
644 
645    res->has_depth = util_format_has_depth(desc);
646    res->has_stencil = util_format_has_stencil(desc);
647 
648    if (res->has_stencil && !res->has_depth)
649       fmt = PIPE_FORMAT_R8_UINT;
650 
651    /* We always use the SWR layout. For 2D and 3D textures this looks like:
652     *
653     * |<------- pitch ------->|
654     * +=======================+-------
655     * |Array 0                |   ^
656     * |                       |   |
657     * |        Level 0        |   |
658     * |                       |   |
659     * |                       | qpitch
660     * +-----------+-----------+   |
661     * |           | L2L2L2L2  |   |
662     * |  Level 1  | L3L3      |   |
663     * |           | L4        |   v
664     * +===========+===========+-------
665     * |Array 1                |
666     * |                       |
667     * |        Level 0        |
668     * |                       |
669     * |                       |
670     * +-----------+-----------+
671     * |           | L2L2L2L2  |
672     * |  Level 1  | L3L3      |
673     * |           | L4        |
674     * +===========+===========+
675     *
676     * The overall width in bytes is known as the pitch, while the overall
677     * height in rows is the qpitch. Array slices are laid out logically below
678     * one another, qpitch rows apart. For 3D surfaces, the "level" values are
679     * just invalid for the higher array numbers (since depth is also
680     * minified). 1D and 1D array surfaces are stored effectively the same way,
681     * except that pitch never plays into it. All the levels are logically
682     * adjacent to each other on the X axis. The qpitch becomes the number of
683     * elements between array slices, while the pitch is unused.
684     *
685     * Each level's sizes are subject to the valign and halign settings of the
686     * surface. For compressed formats that swr is unaware of, we will use an
687     * appropriately-sized uncompressed format, and scale the widths/heights.
688     *
689     * This surface is stored inside res->swr. For depth/stencil textures,
690     * res->secondary will have an identically-laid-out but R8_UINT-formatted
691     * stencil tree. In the Z32F_S8 case, the primary surface still has 64-bpp
692     * texels, to simplify map/unmap logic which copies the stencil values
693     * in/out.
694     */
695 
696    res->swr.width = pt->width0;
697    res->swr.height = pt->height0;
698    res->swr.type = swr_convert_target_type(pt->target);
699    res->swr.tileMode = SWR_TILE_NONE;
700    res->swr.format = mesa_to_swr_format(fmt);
701    res->swr.numSamples = std::max(1u, pt->nr_samples);
702 
703    if (pt->bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL)) {
704       res->swr.halign = KNOB_MACROTILE_X_DIM;
705       res->swr.valign = KNOB_MACROTILE_Y_DIM;
706    } else {
707       res->swr.halign = 1;
708       res->swr.valign = 1;
709    }
710 
711    unsigned halign = res->swr.halign * util_format_get_blockwidth(fmt);
712    unsigned width = align(pt->width0, halign);
713    if (pt->target == PIPE_TEXTURE_1D || pt->target == PIPE_TEXTURE_1D_ARRAY) {
714       for (int level = 1; level <= pt->last_level; level++)
715          width += align(u_minify(pt->width0, level), halign);
716       res->swr.pitch = util_format_get_blocksize(fmt);
717       res->swr.qpitch = util_format_get_nblocksx(fmt, width);
718    } else {
719       // The pitch is the overall width of the texture in bytes. Most of the
720       // time this is the pitch of level 0 since all the other levels fit
721       // underneath it. However in some degenerate situations, the width of
722       // level1 + level2 may be larger. In that case, we use those
723       // widths. This can happen if, e.g. halign is 32, and the width of level
724       // 0 is 32 or less. In that case, the aligned levels 1 and 2 will also
725       // be 32 each, adding up to 64.
726       unsigned valign = res->swr.valign * util_format_get_blockheight(fmt);
727       if (pt->last_level > 1) {
728          width = std::max<uint32_t>(
729                width,
730                align(u_minify(pt->width0, 1), halign) +
731                align(u_minify(pt->width0, 2), halign));
732       }
733       res->swr.pitch = util_format_get_stride(fmt, width);
734 
735       // The qpitch is controlled by either the height of the second LOD, or
736       // the combination of all the later LODs.
737       unsigned height = align(pt->height0, valign);
738       if (pt->last_level == 1) {
739          height += align(u_minify(pt->height0, 1), valign);
740       } else if (pt->last_level > 1) {
741          unsigned level1 = align(u_minify(pt->height0, 1), valign);
742          unsigned level2 = 0;
743          for (int level = 2; level <= pt->last_level; level++) {
744             level2 += align(u_minify(pt->height0, level), valign);
745          }
746          height += std::max(level1, level2);
747       }
748       res->swr.qpitch = util_format_get_nblocksy(fmt, height);
749    }
750 
751    if (pt->target == PIPE_TEXTURE_3D)
752       res->swr.depth = pt->depth0;
753    else
754       res->swr.depth = pt->array_size;
755 
756    // Fix up swr format if necessary so that LOD offset computation works
757    if (res->swr.format == (SWR_FORMAT)-1) {
758       switch (util_format_get_blocksize(fmt)) {
759       default:
760          unreachable("Unexpected format block size");
761       case 1: res->swr.format = R8_UINT; break;
762       case 2: res->swr.format = R16_UINT; break;
763       case 4: res->swr.format = R32_UINT; break;
764       case 8:
765          if (util_format_is_compressed(fmt))
766             res->swr.format = BC4_UNORM;
767          else
768             res->swr.format = R32G32_UINT;
769          break;
770       case 16:
771          if (util_format_is_compressed(fmt))
772             res->swr.format = BC5_UNORM;
773          else
774             res->swr.format = R32G32B32A32_UINT;
775          break;
776       }
777    }
778 
779    for (int level = 0; level <= pt->last_level; level++) {
780       res->mip_offsets[level] =
781          ComputeSurfaceOffset<false>(0, 0, 0, 0, 0, level, &res->swr);
782    }
783 
784    size_t total_size =
785       (size_t)res->swr.depth * res->swr.qpitch * res->swr.pitch;
786    if (total_size > SWR_MAX_TEXTURE_SIZE)
787       return false;
788 
789    if (allocate) {
790       res->swr.pBaseAddress = (uint8_t *)AlignedMalloc(total_size, 64);
791 
792       if (res->has_depth && res->has_stencil) {
793          res->secondary = res->swr;
794          res->secondary.format = R8_UINT;
795          res->secondary.pitch = res->swr.pitch / util_format_get_blocksize(fmt);
796 
797          for (int level = 0; level <= pt->last_level; level++) {
798             res->secondary_mip_offsets[level] =
799                ComputeSurfaceOffset<false>(0, 0, 0, 0, 0, level, &res->secondary);
800          }
801 
802          res->secondary.pBaseAddress = (uint8_t *)AlignedMalloc(
803             res->secondary.depth * res->secondary.qpitch *
804             res->secondary.pitch, 64);
805       }
806    }
807 
808    return true;
809 }
810 
811 static boolean
swr_can_create_resource(struct pipe_screen * screen,const struct pipe_resource * templat)812 swr_can_create_resource(struct pipe_screen *screen,
813                         const struct pipe_resource *templat)
814 {
815    struct swr_resource res;
816    memset(&res, 0, sizeof(res));
817    res.base = *templat;
818    return swr_texture_layout(swr_screen(screen), &res, false);
819 }
820 
821 static struct pipe_resource *
swr_resource_create(struct pipe_screen * _screen,const struct pipe_resource * templat)822 swr_resource_create(struct pipe_screen *_screen,
823                     const struct pipe_resource *templat)
824 {
825    struct swr_screen *screen = swr_screen(_screen);
826    struct swr_resource *res = CALLOC_STRUCT(swr_resource);
827    if (!res)
828       return NULL;
829 
830    res->base = *templat;
831    pipe_reference_init(&res->base.reference, 1);
832    res->base.screen = &screen->base;
833 
834    if (swr_resource_is_texture(&res->base)) {
835       if (res->base.bind & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT
836                             | PIPE_BIND_SHARED)) {
837          /* displayable surface
838           * first call swr_texture_layout without allocating to finish
839           * filling out the SWR_SURFAE_STATE in res */
840          swr_texture_layout(screen, res, false);
841          if (!swr_displaytarget_layout(screen, res))
842             goto fail;
843       } else {
844          /* texture map */
845          if (!swr_texture_layout(screen, res, true))
846             goto fail;
847       }
848    } else {
849       /* other data (vertex buffer, const buffer, etc) */
850       assert(util_format_get_blocksize(templat->format) == 1);
851       assert(templat->height0 == 1);
852       assert(templat->depth0 == 1);
853       assert(templat->last_level == 0);
854 
855       /* Easiest to just call swr_texture_layout, as it sets up
856        * SWR_SURFAE_STATE in res */
857       if (!swr_texture_layout(screen, res, true))
858          goto fail;
859    }
860 
861    return &res->base;
862 
863 fail:
864    FREE(res);
865    return NULL;
866 }
867 
868 static void
swr_resource_destroy(struct pipe_screen * p_screen,struct pipe_resource * pt)869 swr_resource_destroy(struct pipe_screen *p_screen, struct pipe_resource *pt)
870 {
871    struct swr_screen *screen = swr_screen(p_screen);
872    struct swr_resource *spr = swr_resource(pt);
873    struct pipe_context *pipe = screen->pipe;
874 
875    if (spr->display_target) {
876       /* If resource is display target, winsys manages the buffer and will
877        * free it on displaytarget_destroy. */
878       swr_fence_finish(p_screen, NULL, screen->flush_fence, 0);
879 
880       struct sw_winsys *winsys = screen->winsys;
881       winsys->displaytarget_destroy(winsys, spr->display_target);
882 
883    } else {
884       /* For regular resources, defer deletion */
885       swr_resource_unused(pt);
886       swr_fence_work_free(screen->flush_fence, spr->swr.pBaseAddress, true);
887       swr_fence_work_free(screen->flush_fence,
888                           spr->secondary.pBaseAddress, true);
889    }
890 
891    FREE(spr);
892 }
893 
894 
895 static void
swr_flush_frontbuffer(struct pipe_screen * p_screen,struct pipe_resource * resource,unsigned level,unsigned layer,void * context_private,struct pipe_box * sub_box)896 swr_flush_frontbuffer(struct pipe_screen *p_screen,
897                       struct pipe_resource *resource,
898                       unsigned level,
899                       unsigned layer,
900                       void *context_private,
901                       struct pipe_box *sub_box)
902 {
903    struct swr_screen *screen = swr_screen(p_screen);
904    struct sw_winsys *winsys = screen->winsys;
905    struct swr_resource *spr = swr_resource(resource);
906    struct pipe_context *pipe = screen->pipe;
907 
908    if (pipe) {
909       swr_fence_finish(p_screen, NULL, screen->flush_fence, 0);
910       swr_resource_unused(resource);
911       SwrEndFrame(swr_context(pipe)->swrContext);
912    }
913 
914    debug_assert(spr->display_target);
915    if (spr->display_target)
916       winsys->displaytarget_display(
917          winsys, spr->display_target, context_private, sub_box);
918 }
919 
920 
921 static void
swr_destroy_screen(struct pipe_screen * p_screen)922 swr_destroy_screen(struct pipe_screen *p_screen)
923 {
924    struct swr_screen *screen = swr_screen(p_screen);
925    struct sw_winsys *winsys = screen->winsys;
926 
927    fprintf(stderr, "SWR destroy screen!\n");
928 
929    swr_fence_finish(p_screen, NULL, screen->flush_fence, 0);
930    swr_fence_reference(p_screen, &screen->flush_fence, NULL);
931 
932    JitDestroyContext(screen->hJitMgr);
933 
934    if (winsys->destroy)
935       winsys->destroy(winsys);
936 
937    FREE(screen);
938 }
939 
940 PUBLIC
941 struct pipe_screen *
swr_create_screen_internal(struct sw_winsys * winsys)942 swr_create_screen_internal(struct sw_winsys *winsys)
943 {
944    struct swr_screen *screen = CALLOC_STRUCT(swr_screen);
945 
946    if (!screen)
947       return NULL;
948 
949    if (!getenv("KNOB_MAX_PRIMS_PER_DRAW")) {
950       g_GlobalKnobs.MAX_PRIMS_PER_DRAW.Value(49152);
951    }
952 
953    if (!lp_build_init()) {
954       FREE(screen);
955       return NULL;
956    }
957 
958    screen->winsys = winsys;
959    screen->base.get_name = swr_get_name;
960    screen->base.get_vendor = swr_get_vendor;
961    screen->base.is_format_supported = swr_is_format_supported;
962    screen->base.context_create = swr_create_context;
963    screen->base.can_create_resource = swr_can_create_resource;
964 
965    screen->base.destroy = swr_destroy_screen;
966    screen->base.get_param = swr_get_param;
967    screen->base.get_shader_param = swr_get_shader_param;
968    screen->base.get_paramf = swr_get_paramf;
969 
970    screen->base.resource_create = swr_resource_create;
971    screen->base.resource_destroy = swr_resource_destroy;
972 
973    screen->base.flush_frontbuffer = swr_flush_frontbuffer;
974 
975    screen->hJitMgr = JitCreateContext(KNOB_SIMD_WIDTH, KNOB_ARCH_STR, "swr");
976 
977    swr_fence_init(&screen->base);
978 
979    util_format_s3tc_init();
980 
981    return &screen->base;
982 }
983 
984