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1 /**************************************************************************
2  *
3  * Copyright 2007 VMware, Inc.
4  * All Rights Reserved.
5  *
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:
13  *
14  * The above copyright notice and this permission notice (including the
15  * next paragraph) shall be included in all copies or substantial portions
16  * of the Software.
17  *
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 VMWARE 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.
25  *
26  **************************************************************************/
27 
28 #ifndef PIPE_DEFINES_H
29 #define PIPE_DEFINES_H
30 
31 #include "p_compiler.h"
32 
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36 
37 /**
38  * Gallium error codes.
39  *
40  * - A zero value always means success.
41  * - A negative value always means failure.
42  * - The meaning of a positive value is function dependent.
43  */
44 enum pipe_error {
45    PIPE_OK = 0,
46    PIPE_ERROR = -1,    /**< Generic error */
47    PIPE_ERROR_BAD_INPUT = -2,
48    PIPE_ERROR_OUT_OF_MEMORY = -3,
49    PIPE_ERROR_RETRY = -4
50    /* TODO */
51 };
52 
53 
54 #define PIPE_BLENDFACTOR_ONE                 0x1
55 #define PIPE_BLENDFACTOR_SRC_COLOR           0x2
56 #define PIPE_BLENDFACTOR_SRC_ALPHA           0x3
57 #define PIPE_BLENDFACTOR_DST_ALPHA           0x4
58 #define PIPE_BLENDFACTOR_DST_COLOR           0x5
59 #define PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE  0x6
60 #define PIPE_BLENDFACTOR_CONST_COLOR         0x7
61 #define PIPE_BLENDFACTOR_CONST_ALPHA         0x8
62 #define PIPE_BLENDFACTOR_SRC1_COLOR          0x9
63 #define PIPE_BLENDFACTOR_SRC1_ALPHA          0x0A
64 #define PIPE_BLENDFACTOR_ZERO                0x11
65 #define PIPE_BLENDFACTOR_INV_SRC_COLOR       0x12
66 #define PIPE_BLENDFACTOR_INV_SRC_ALPHA       0x13
67 #define PIPE_BLENDFACTOR_INV_DST_ALPHA       0x14
68 #define PIPE_BLENDFACTOR_INV_DST_COLOR       0x15
69 #define PIPE_BLENDFACTOR_INV_CONST_COLOR     0x17
70 #define PIPE_BLENDFACTOR_INV_CONST_ALPHA     0x18
71 #define PIPE_BLENDFACTOR_INV_SRC1_COLOR      0x19
72 #define PIPE_BLENDFACTOR_INV_SRC1_ALPHA      0x1A
73 
74 #define PIPE_BLEND_ADD               0
75 #define PIPE_BLEND_SUBTRACT          1
76 #define PIPE_BLEND_REVERSE_SUBTRACT  2
77 #define PIPE_BLEND_MIN               3
78 #define PIPE_BLEND_MAX               4
79 
80 #define PIPE_LOGICOP_CLEAR            0
81 #define PIPE_LOGICOP_NOR              1
82 #define PIPE_LOGICOP_AND_INVERTED     2
83 #define PIPE_LOGICOP_COPY_INVERTED    3
84 #define PIPE_LOGICOP_AND_REVERSE      4
85 #define PIPE_LOGICOP_INVERT           5
86 #define PIPE_LOGICOP_XOR              6
87 #define PIPE_LOGICOP_NAND             7
88 #define PIPE_LOGICOP_AND              8
89 #define PIPE_LOGICOP_EQUIV            9
90 #define PIPE_LOGICOP_NOOP             10
91 #define PIPE_LOGICOP_OR_INVERTED      11
92 #define PIPE_LOGICOP_COPY             12
93 #define PIPE_LOGICOP_OR_REVERSE       13
94 #define PIPE_LOGICOP_OR               14
95 #define PIPE_LOGICOP_SET              15
96 
97 #define PIPE_MASK_R  0x1
98 #define PIPE_MASK_G  0x2
99 #define PIPE_MASK_B  0x4
100 #define PIPE_MASK_A  0x8
101 #define PIPE_MASK_RGBA 0xf
102 #define PIPE_MASK_Z  0x10
103 #define PIPE_MASK_S  0x20
104 #define PIPE_MASK_ZS 0x30
105 #define PIPE_MASK_RGBAZS (PIPE_MASK_RGBA|PIPE_MASK_ZS)
106 
107 
108 /**
109  * Inequality functions.  Used for depth test, stencil compare, alpha
110  * test, shadow compare, etc.
111  */
112 #define PIPE_FUNC_NEVER    0
113 #define PIPE_FUNC_LESS     1
114 #define PIPE_FUNC_EQUAL    2
115 #define PIPE_FUNC_LEQUAL   3
116 #define PIPE_FUNC_GREATER  4
117 #define PIPE_FUNC_NOTEQUAL 5
118 #define PIPE_FUNC_GEQUAL   6
119 #define PIPE_FUNC_ALWAYS   7
120 
121 /** Polygon fill mode */
122 #define PIPE_POLYGON_MODE_FILL  0
123 #define PIPE_POLYGON_MODE_LINE  1
124 #define PIPE_POLYGON_MODE_POINT 2
125 
126 /** Polygon face specification, eg for culling */
127 #define PIPE_FACE_NONE           0
128 #define PIPE_FACE_FRONT          1
129 #define PIPE_FACE_BACK           2
130 #define PIPE_FACE_FRONT_AND_BACK (PIPE_FACE_FRONT | PIPE_FACE_BACK)
131 
132 /** Stencil ops */
133 #define PIPE_STENCIL_OP_KEEP       0
134 #define PIPE_STENCIL_OP_ZERO       1
135 #define PIPE_STENCIL_OP_REPLACE    2
136 #define PIPE_STENCIL_OP_INCR       3
137 #define PIPE_STENCIL_OP_DECR       4
138 #define PIPE_STENCIL_OP_INCR_WRAP  5
139 #define PIPE_STENCIL_OP_DECR_WRAP  6
140 #define PIPE_STENCIL_OP_INVERT     7
141 
142 /** Texture types.
143  * See the documentation for info on PIPE_TEXTURE_RECT vs PIPE_TEXTURE_2D */
144 enum pipe_texture_target {
145    PIPE_BUFFER           = 0,
146    PIPE_TEXTURE_1D       = 1,
147    PIPE_TEXTURE_2D       = 2,
148    PIPE_TEXTURE_3D       = 3,
149    PIPE_TEXTURE_CUBE     = 4,
150    PIPE_TEXTURE_RECT     = 5,
151    PIPE_TEXTURE_1D_ARRAY = 6,
152    PIPE_TEXTURE_2D_ARRAY = 7,
153    PIPE_TEXTURE_CUBE_ARRAY = 8,
154    PIPE_MAX_TEXTURE_TYPES
155 };
156 
157 #define PIPE_TEX_FACE_POS_X 0
158 #define PIPE_TEX_FACE_NEG_X 1
159 #define PIPE_TEX_FACE_POS_Y 2
160 #define PIPE_TEX_FACE_NEG_Y 3
161 #define PIPE_TEX_FACE_POS_Z 4
162 #define PIPE_TEX_FACE_NEG_Z 5
163 #define PIPE_TEX_FACE_MAX   6
164 
165 #define PIPE_TEX_WRAP_REPEAT                   0
166 #define PIPE_TEX_WRAP_CLAMP                    1
167 #define PIPE_TEX_WRAP_CLAMP_TO_EDGE            2
168 #define PIPE_TEX_WRAP_CLAMP_TO_BORDER          3
169 #define PIPE_TEX_WRAP_MIRROR_REPEAT            4
170 #define PIPE_TEX_WRAP_MIRROR_CLAMP             5
171 #define PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE     6
172 #define PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER   7
173 
174 /* Between mipmaps, ie mipfilter
175  */
176 #define PIPE_TEX_MIPFILTER_NEAREST  0
177 #define PIPE_TEX_MIPFILTER_LINEAR   1
178 #define PIPE_TEX_MIPFILTER_NONE     2
179 
180 /* Within a mipmap, ie min/mag filter
181  */
182 #define PIPE_TEX_FILTER_NEAREST      0
183 #define PIPE_TEX_FILTER_LINEAR       1
184 
185 #define PIPE_TEX_COMPARE_NONE          0
186 #define PIPE_TEX_COMPARE_R_TO_TEXTURE  1
187 
188 /**
189  * Clear buffer bits
190  */
191 #define PIPE_CLEAR_DEPTH        (1 << 0)
192 #define PIPE_CLEAR_STENCIL      (1 << 1)
193 #define PIPE_CLEAR_COLOR0       (1 << 2)
194 #define PIPE_CLEAR_COLOR1       (1 << 3)
195 #define PIPE_CLEAR_COLOR2       (1 << 4)
196 #define PIPE_CLEAR_COLOR3       (1 << 5)
197 #define PIPE_CLEAR_COLOR4       (1 << 6)
198 #define PIPE_CLEAR_COLOR5       (1 << 7)
199 #define PIPE_CLEAR_COLOR6       (1 << 8)
200 #define PIPE_CLEAR_COLOR7       (1 << 9)
201 /** Combined flags */
202 /** All color buffers currently bound */
203 #define PIPE_CLEAR_COLOR        (PIPE_CLEAR_COLOR0 | PIPE_CLEAR_COLOR1 | \
204                                  PIPE_CLEAR_COLOR2 | PIPE_CLEAR_COLOR3 | \
205                                  PIPE_CLEAR_COLOR4 | PIPE_CLEAR_COLOR5 | \
206                                  PIPE_CLEAR_COLOR6 | PIPE_CLEAR_COLOR7)
207 #define PIPE_CLEAR_DEPTHSTENCIL (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL)
208 
209 /**
210  * Transfer object usage flags
211  */
212 enum pipe_transfer_usage {
213    /**
214     * Resource contents read back (or accessed directly) at transfer
215     * create time.
216     */
217    PIPE_TRANSFER_READ = (1 << 0),
218 
219    /**
220     * Resource contents will be written back at transfer_unmap
221     * time (or modified as a result of being accessed directly).
222     */
223    PIPE_TRANSFER_WRITE = (1 << 1),
224 
225    /**
226     * Read/modify/write
227     */
228    PIPE_TRANSFER_READ_WRITE = PIPE_TRANSFER_READ | PIPE_TRANSFER_WRITE,
229 
230    /**
231     * The transfer should map the texture storage directly. The driver may
232     * return NULL if that isn't possible, and the state tracker needs to cope
233     * with that and use an alternative path without this flag.
234     *
235     * E.g. the state tracker could have a simpler path which maps textures and
236     * does read/modify/write cycles on them directly, and a more complicated
237     * path which uses minimal read and write transfers.
238     */
239    PIPE_TRANSFER_MAP_DIRECTLY = (1 << 2),
240 
241    /**
242     * Discards the memory within the mapped region.
243     *
244     * It should not be used with PIPE_TRANSFER_READ.
245     *
246     * See also:
247     * - OpenGL's ARB_map_buffer_range extension, MAP_INVALIDATE_RANGE_BIT flag.
248     */
249    PIPE_TRANSFER_DISCARD_RANGE = (1 << 8),
250 
251    /**
252     * Fail if the resource cannot be mapped immediately.
253     *
254     * See also:
255     * - Direct3D's D3DLOCK_DONOTWAIT flag.
256     * - Mesa3D's MESA_MAP_NOWAIT_BIT flag.
257     * - WDDM's D3DDDICB_LOCKFLAGS.DonotWait flag.
258     */
259    PIPE_TRANSFER_DONTBLOCK = (1 << 9),
260 
261    /**
262     * Do not attempt to synchronize pending operations on the resource when mapping.
263     *
264     * It should not be used with PIPE_TRANSFER_READ.
265     *
266     * See also:
267     * - OpenGL's ARB_map_buffer_range extension, MAP_UNSYNCHRONIZED_BIT flag.
268     * - Direct3D's D3DLOCK_NOOVERWRITE flag.
269     * - WDDM's D3DDDICB_LOCKFLAGS.IgnoreSync flag.
270     */
271    PIPE_TRANSFER_UNSYNCHRONIZED = (1 << 10),
272 
273    /**
274     * Written ranges will be notified later with
275     * pipe_context::transfer_flush_region.
276     *
277     * It should not be used with PIPE_TRANSFER_READ.
278     *
279     * See also:
280     * - pipe_context::transfer_flush_region
281     * - OpenGL's ARB_map_buffer_range extension, MAP_FLUSH_EXPLICIT_BIT flag.
282     */
283    PIPE_TRANSFER_FLUSH_EXPLICIT = (1 << 11),
284 
285    /**
286     * Discards all memory backing the resource.
287     *
288     * It should not be used with PIPE_TRANSFER_READ.
289     *
290     * This is equivalent to:
291     * - OpenGL's ARB_map_buffer_range extension, MAP_INVALIDATE_BUFFER_BIT
292     * - BufferData(NULL) on a GL buffer
293     * - Direct3D's D3DLOCK_DISCARD flag.
294     * - WDDM's D3DDDICB_LOCKFLAGS.Discard flag.
295     * - D3D10 DDI's D3D10_DDI_MAP_WRITE_DISCARD flag
296     * - D3D10's D3D10_MAP_WRITE_DISCARD flag.
297     */
298    PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE = (1 << 12),
299 
300    /**
301     * Allows the resource to be used for rendering while mapped.
302     *
303     * PIPE_RESOURCE_FLAG_MAP_PERSISTENT must be set when creating
304     * the resource.
305     *
306     * If COHERENT is not set, memory_barrier(PIPE_BARRIER_MAPPED_BUFFER)
307     * must be called to ensure the device can see what the CPU has written.
308     */
309    PIPE_TRANSFER_PERSISTENT = (1 << 13),
310 
311    /**
312     * If PERSISTENT is set, this ensures any writes done by the device are
313     * immediately visible to the CPU and vice versa.
314     *
315     * PIPE_RESOURCE_FLAG_MAP_COHERENT must be set when creating
316     * the resource.
317     */
318    PIPE_TRANSFER_COHERENT = (1 << 14)
319 };
320 
321 /**
322  * Flags for the flush function.
323  */
324 enum pipe_flush_flags {
325    PIPE_FLUSH_END_OF_FRAME = (1 << 0)
326 };
327 
328 /**
329  * Flags for pipe_context::memory_barrier.
330  */
331 #define PIPE_BARRIER_MAPPED_BUFFER     (1 << 0)
332 #define PIPE_BARRIER_SHADER_BUFFER     (1 << 1)
333 #define PIPE_BARRIER_QUERY_BUFFER      (1 << 2)
334 #define PIPE_BARRIER_VERTEX_BUFFER     (1 << 3)
335 #define PIPE_BARRIER_INDEX_BUFFER      (1 << 4)
336 #define PIPE_BARRIER_CONSTANT_BUFFER   (1 << 5)
337 #define PIPE_BARRIER_INDIRECT_BUFFER   (1 << 6)
338 #define PIPE_BARRIER_TEXTURE           (1 << 7)
339 #define PIPE_BARRIER_IMAGE             (1 << 8)
340 #define PIPE_BARRIER_FRAMEBUFFER       (1 << 9)
341 #define PIPE_BARRIER_STREAMOUT_BUFFER  (1 << 10)
342 #define PIPE_BARRIER_GLOBAL_BUFFER     (1 << 11)
343 #define PIPE_BARRIER_ALL               ((1 << 12) - 1)
344 
345 /**
346  * Flags for pipe_context::texture_barrier.
347  */
348 #define PIPE_TEXTURE_BARRIER_SAMPLER      (1 << 0)
349 #define PIPE_TEXTURE_BARRIER_FRAMEBUFFER  (1 << 1)
350 
351 /*
352  * Resource binding flags -- state tracker must specify in advance all
353  * the ways a resource might be used.
354  */
355 #define PIPE_BIND_DEPTH_STENCIL        (1 << 0) /* create_surface */
356 #define PIPE_BIND_RENDER_TARGET        (1 << 1) /* create_surface */
357 #define PIPE_BIND_BLENDABLE            (1 << 2) /* create_surface */
358 #define PIPE_BIND_SAMPLER_VIEW         (1 << 3) /* create_sampler_view */
359 #define PIPE_BIND_VERTEX_BUFFER        (1 << 4) /* set_vertex_buffers */
360 #define PIPE_BIND_INDEX_BUFFER         (1 << 5) /* draw_elements */
361 #define PIPE_BIND_CONSTANT_BUFFER      (1 << 6) /* set_constant_buffer */
362 #define PIPE_BIND_DISPLAY_TARGET       (1 << 8) /* flush_front_buffer */
363 #define PIPE_BIND_TRANSFER_WRITE       (1 << 9) /* transfer_map */
364 #define PIPE_BIND_TRANSFER_READ        (1 << 10) /* transfer_map */
365 #define PIPE_BIND_STREAM_OUTPUT        (1 << 11) /* set_stream_output_buffers */
366 #define PIPE_BIND_CURSOR               (1 << 16) /* mouse cursor */
367 #define PIPE_BIND_CUSTOM               (1 << 17) /* state-tracker/winsys usages */
368 #define PIPE_BIND_GLOBAL               (1 << 18) /* set_global_binding */
369 #define PIPE_BIND_SHADER_RESOURCE      (1 << 19) /* set_shader_resources */
370 #define PIPE_BIND_COMPUTE_RESOURCE     (1 << 20) /* set_compute_resources */
371 #define PIPE_BIND_COMMAND_ARGS_BUFFER  (1 << 21) /* pipe_draw_info.indirect */
372 
373 /* The first two flags above were previously part of the amorphous
374  * TEXTURE_USAGE, most of which are now descriptions of the ways a
375  * particular texture can be bound to the gallium pipeline.  The two flags
376  * below do not fit within that and probably need to be migrated to some
377  * other place.
378  *
379  * It seems like scanout is used by the Xorg state tracker to ask for
380  * a texture suitable for actual scanout (hence the name), which
381  * implies extra layout constraints on some hardware.  It may also
382  * have some special meaning regarding mouse cursor images.
383  *
384  * The shared flag is quite underspecified, but certainly isn't a
385  * binding flag - it seems more like a message to the winsys to create
386  * a shareable allocation.
387  *
388  * The third flag has been added to be able to force textures to be created
389  * in linear mode (no tiling).
390  */
391 #define PIPE_BIND_SCANOUT     (1 << 14) /*  */
392 #define PIPE_BIND_SHARED      (1 << 15) /* get_texture_handle ??? */
393 #define PIPE_BIND_LINEAR      (1 << 21)
394 
395 
396 /* Flags for the driver about resource behaviour:
397  */
398 #define PIPE_RESOURCE_FLAG_MAP_PERSISTENT (1 << 0)
399 #define PIPE_RESOURCE_FLAG_MAP_COHERENT   (1 << 1)
400 #define PIPE_RESOURCE_FLAG_DRV_PRIV    (1 << 16) /* driver/winsys private */
401 #define PIPE_RESOURCE_FLAG_ST_PRIV     (1 << 24) /* state-tracker/winsys private */
402 
403 /* Hint about the expected lifecycle of a resource.
404  * Sorted according to GPU vs CPU access.
405  */
406 #define PIPE_USAGE_DEFAULT        0 /* fast GPU access */
407 #define PIPE_USAGE_IMMUTABLE      1 /* fast GPU access, immutable */
408 #define PIPE_USAGE_DYNAMIC        2 /* uploaded data is used multiple times */
409 #define PIPE_USAGE_STREAM         3 /* uploaded data is used once */
410 #define PIPE_USAGE_STAGING        4 /* fast CPU access */
411 
412 
413 /**
414  * Shaders
415  */
416 #define PIPE_SHADER_VERTEX   0
417 #define PIPE_SHADER_FRAGMENT 1
418 #define PIPE_SHADER_GEOMETRY 2
419 #define PIPE_SHADER_TESS_CTRL 3
420 #define PIPE_SHADER_TESS_EVAL 4
421 #define PIPE_SHADER_COMPUTE  5
422 #define PIPE_SHADER_TYPES    6
423 
424 
425 /**
426  * Primitive types:
427  */
428 #define PIPE_PRIM_POINTS                    0
429 #define PIPE_PRIM_LINES                     1
430 #define PIPE_PRIM_LINE_LOOP                 2
431 #define PIPE_PRIM_LINE_STRIP                3
432 #define PIPE_PRIM_TRIANGLES                 4
433 #define PIPE_PRIM_TRIANGLE_STRIP            5
434 #define PIPE_PRIM_TRIANGLE_FAN              6
435 #define PIPE_PRIM_QUADS                     7
436 #define PIPE_PRIM_QUAD_STRIP                8
437 #define PIPE_PRIM_POLYGON                   9
438 #define PIPE_PRIM_LINES_ADJACENCY          10
439 #define PIPE_PRIM_LINE_STRIP_ADJACENCY     11
440 #define PIPE_PRIM_TRIANGLES_ADJACENCY      12
441 #define PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY 13
442 #define PIPE_PRIM_PATCHES                  14
443 #define PIPE_PRIM_MAX                      15
444 
445 
446 /**
447  * Tessellator spacing types
448  */
449 #define PIPE_TESS_SPACING_FRACTIONAL_ODD    0
450 #define PIPE_TESS_SPACING_FRACTIONAL_EVEN   1
451 #define PIPE_TESS_SPACING_EQUAL             2
452 
453 /**
454  * Query object types
455  */
456 #define PIPE_QUERY_OCCLUSION_COUNTER     0
457 #define PIPE_QUERY_OCCLUSION_PREDICATE   1
458 #define PIPE_QUERY_TIMESTAMP             2
459 #define PIPE_QUERY_TIMESTAMP_DISJOINT    3
460 #define PIPE_QUERY_TIME_ELAPSED          4
461 #define PIPE_QUERY_PRIMITIVES_GENERATED  5
462 #define PIPE_QUERY_PRIMITIVES_EMITTED    6
463 #define PIPE_QUERY_SO_STATISTICS         7
464 #define PIPE_QUERY_SO_OVERFLOW_PREDICATE 8
465 #define PIPE_QUERY_GPU_FINISHED          9
466 #define PIPE_QUERY_PIPELINE_STATISTICS  10
467 #define PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE 11
468 #define PIPE_QUERY_SO_OVERFLOW_ANY_PREDICATE 12
469 #define PIPE_QUERY_TYPES                13
470 
471 /* start of driver queries,
472  * see pipe_screen::get_driver_query_info */
473 #define PIPE_QUERY_DRIVER_SPECIFIC     256
474 
475 
476 /**
477  * Conditional rendering modes
478  */
479 #define PIPE_RENDER_COND_WAIT              0
480 #define PIPE_RENDER_COND_NO_WAIT           1
481 #define PIPE_RENDER_COND_BY_REGION_WAIT    2
482 #define PIPE_RENDER_COND_BY_REGION_NO_WAIT 3
483 
484 
485 /**
486  * Point sprite coord modes
487  */
488 #define PIPE_SPRITE_COORD_UPPER_LEFT 0
489 #define PIPE_SPRITE_COORD_LOWER_LEFT 1
490 
491 
492 /**
493  * Texture swizzles
494  */
495 #define PIPE_SWIZZLE_RED   0
496 #define PIPE_SWIZZLE_GREEN 1
497 #define PIPE_SWIZZLE_BLUE  2
498 #define PIPE_SWIZZLE_ALPHA 3
499 #define PIPE_SWIZZLE_ZERO  4
500 #define PIPE_SWIZZLE_ONE   5
501 
502 
503 #define PIPE_TIMEOUT_INFINITE 0xffffffffffffffffull
504 
505 /**
506  * pipe_image_view access flags.
507  */
508 #define PIPE_IMAGE_ACCESS_READ       (1 << 0)
509 #define PIPE_IMAGE_ACCESS_WRITE      (1 << 1)
510 #define PIPE_IMAGE_ACCESS_READ_WRITE (PIPE_IMAGE_ACCESS_READ | \
511                                       PIPE_IMAGE_ACCESS_WRITE)
512 
513 /**
514  * Implementation capabilities/limits which are queried through
515  * pipe_screen::get_param()
516  */
517 enum pipe_cap {
518    PIPE_CAP_NPOT_TEXTURES = 1,
519    PIPE_CAP_TWO_SIDED_STENCIL = 2,
520    PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS = 4,
521    PIPE_CAP_ANISOTROPIC_FILTER = 5,
522    PIPE_CAP_POINT_SPRITE = 6,
523    PIPE_CAP_MAX_RENDER_TARGETS = 7,
524    PIPE_CAP_OCCLUSION_QUERY = 8,
525    PIPE_CAP_QUERY_TIME_ELAPSED = 9,
526    PIPE_CAP_TEXTURE_SHADOW_MAP = 10,
527    PIPE_CAP_TEXTURE_SWIZZLE = 11,
528    PIPE_CAP_MAX_TEXTURE_2D_LEVELS = 12,
529    PIPE_CAP_MAX_TEXTURE_3D_LEVELS = 13,
530    PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS = 14,
531    PIPE_CAP_TEXTURE_MIRROR_CLAMP = 25,
532    PIPE_CAP_BLEND_EQUATION_SEPARATE = 28,
533    PIPE_CAP_SM3 = 29,  /*< Shader Model, supported */
534    PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS = 30,
535    PIPE_CAP_PRIMITIVE_RESTART = 31,
536    /** blend enables and write masks per rendertarget */
537    PIPE_CAP_INDEP_BLEND_ENABLE = 33,
538    /** different blend funcs per rendertarget */
539    PIPE_CAP_INDEP_BLEND_FUNC = 34,
540    PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS = 36,
541    PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT = 37,
542    PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT = 38,
543    PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER = 39,
544    PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER = 40,
545    PIPE_CAP_DEPTH_CLIP_DISABLE = 41,
546    PIPE_CAP_SHADER_STENCIL_EXPORT = 42,
547    PIPE_CAP_TGSI_INSTANCEID = 43,
548    PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR = 44,
549    PIPE_CAP_FRAGMENT_COLOR_CLAMPED = 45,
550    PIPE_CAP_MIXED_COLORBUFFER_FORMATS = 46,
551    PIPE_CAP_SEAMLESS_CUBE_MAP = 47,
552    PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE = 48,
553    PIPE_CAP_MIN_TEXEL_OFFSET = 50,
554    PIPE_CAP_MAX_TEXEL_OFFSET = 51,
555    PIPE_CAP_CONDITIONAL_RENDER = 52,
556    PIPE_CAP_TEXTURE_BARRIER = 53,
557    PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS = 55,
558    PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS = 56,
559    PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME = 57,
560    PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS = 59, /* temporary */
561    PIPE_CAP_VERTEX_COLOR_UNCLAMPED = 60,
562    PIPE_CAP_VERTEX_COLOR_CLAMPED = 61,
563    PIPE_CAP_GLSL_FEATURE_LEVEL = 62,
564    PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION = 63,
565    PIPE_CAP_USER_VERTEX_BUFFERS = 64,
566    PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY = 65,
567    PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY = 66,
568    PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY = 67,
569    PIPE_CAP_COMPUTE = 68,
570    PIPE_CAP_USER_INDEX_BUFFERS = 69,
571    PIPE_CAP_USER_CONSTANT_BUFFERS = 70,
572    PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT = 71,
573    PIPE_CAP_START_INSTANCE = 72,
574    PIPE_CAP_QUERY_TIMESTAMP = 73,
575    PIPE_CAP_TEXTURE_MULTISAMPLE = 74,
576    PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT = 75,
577    PIPE_CAP_CUBE_MAP_ARRAY = 76,
578    PIPE_CAP_TEXTURE_BUFFER_OBJECTS = 77,
579    PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT = 78,
580    PIPE_CAP_TGSI_TEXCOORD = 79,
581    PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER = 80,
582    PIPE_CAP_QUERY_PIPELINE_STATISTICS = 81,
583    PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK = 82,
584    PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE = 83,
585    PIPE_CAP_MAX_VIEWPORTS = 84,
586    PIPE_CAP_ENDIANNESS = 85,
587    PIPE_CAP_MIXED_FRAMEBUFFER_SIZES = 86,
588    PIPE_CAP_TGSI_VS_LAYER_VIEWPORT = 87,
589    PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES = 88,
590    PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS = 89,
591    PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS = 90,
592    PIPE_CAP_TEXTURE_GATHER_SM5 = 91,
593    PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT = 92,
594    PIPE_CAP_FAKE_SW_MSAA = 93,
595    PIPE_CAP_TEXTURE_QUERY_LOD = 94,
596    PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET = 95,
597    PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET = 96,
598    PIPE_CAP_SAMPLE_SHADING = 97,
599    PIPE_CAP_TEXTURE_GATHER_OFFSETS = 98,
600    PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION = 99,
601    PIPE_CAP_MAX_VERTEX_STREAMS = 100,
602    PIPE_CAP_DRAW_INDIRECT = 101,
603    PIPE_CAP_TGSI_FS_FINE_DERIVATIVE = 102,
604    PIPE_CAP_VENDOR_ID = 103,
605    PIPE_CAP_DEVICE_ID = 104,
606    PIPE_CAP_ACCELERATED = 105,
607    PIPE_CAP_VIDEO_MEMORY = 106,
608    PIPE_CAP_UMA = 107,
609    PIPE_CAP_CONDITIONAL_RENDER_INVERTED = 108,
610    PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE = 109,
611    PIPE_CAP_SAMPLER_VIEW_TARGET = 110,
612    PIPE_CAP_CLIP_HALFZ = 111,
613    PIPE_CAP_VERTEXID_NOBASE = 112,
614    PIPE_CAP_POLYGON_OFFSET_CLAMP = 113,
615 };
616 
617 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)
618 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600 (1 << 1)
619 
620 enum pipe_endian {
621    PIPE_ENDIAN_LITTLE = 0,
622    PIPE_ENDIAN_BIG = 1,
623 #if defined(PIPE_ARCH_LITTLE_ENDIAN)
624    PIPE_ENDIAN_NATIVE = PIPE_ENDIAN_LITTLE
625 #elif defined(PIPE_ARCH_BIG_ENDIAN)
626    PIPE_ENDIAN_NATIVE = PIPE_ENDIAN_BIG
627 #endif
628 };
629 
630 /**
631  * Implementation limits which are queried through
632  * pipe_screen::get_paramf()
633  */
634 enum pipe_capf
635 {
636    PIPE_CAPF_MAX_LINE_WIDTH,
637    PIPE_CAPF_MAX_LINE_WIDTH_AA,
638    PIPE_CAPF_MAX_POINT_WIDTH,
639    PIPE_CAPF_MAX_POINT_WIDTH_AA,
640    PIPE_CAPF_MAX_TEXTURE_ANISOTROPY,
641    PIPE_CAPF_MAX_TEXTURE_LOD_BIAS,
642    PIPE_CAPF_GUARD_BAND_LEFT,
643    PIPE_CAPF_GUARD_BAND_TOP,
644    PIPE_CAPF_GUARD_BAND_RIGHT,
645    PIPE_CAPF_GUARD_BAND_BOTTOM
646 };
647 
648 /* Shader caps not specific to any single stage */
649 enum pipe_shader_cap
650 {
651    PIPE_SHADER_CAP_MAX_INSTRUCTIONS, /* if 0, it means the stage is unsupported */
652    PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS,
653    PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS,
654    PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS,
655    PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH,
656    PIPE_SHADER_CAP_MAX_INPUTS,
657    PIPE_SHADER_CAP_MAX_OUTPUTS,
658    PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE,
659    PIPE_SHADER_CAP_MAX_CONST_BUFFERS,
660    PIPE_SHADER_CAP_MAX_TEMPS,
661    PIPE_SHADER_CAP_MAX_PREDS,
662    /* boolean caps */
663    PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED,
664    PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR,
665    PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR,
666    PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR,
667    PIPE_SHADER_CAP_INDIRECT_CONST_ADDR,
668    PIPE_SHADER_CAP_SUBROUTINES, /* BGNSUB, ENDSUB, CAL, RET */
669    PIPE_SHADER_CAP_INTEGERS,
670    PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS,
671    PIPE_SHADER_CAP_PREFERRED_IR,
672    PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED,
673    PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS,
674    PIPE_SHADER_CAP_DOUBLES
675 };
676 
677 /**
678  * Shader intermediate representation.
679  */
680 enum pipe_shader_ir
681 {
682    PIPE_SHADER_IR_TGSI,
683    PIPE_SHADER_IR_LLVM,
684    PIPE_SHADER_IR_NATIVE
685 };
686 
687 /**
688  * Compute-specific implementation capability.  They can be queried
689  * using pipe_screen::get_compute_param.
690  */
691 enum pipe_compute_cap
692 {
693    PIPE_COMPUTE_CAP_IR_TARGET,
694    PIPE_COMPUTE_CAP_GRID_DIMENSION,
695    PIPE_COMPUTE_CAP_MAX_GRID_SIZE,
696    PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE,
697    PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
698    PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE,
699    PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
700    PIPE_COMPUTE_CAP_MAX_PRIVATE_SIZE,
701    PIPE_COMPUTE_CAP_MAX_INPUT_SIZE,
702    PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE,
703    PIPE_COMPUTE_CAP_MAX_CLOCK_FREQUENCY,
704    PIPE_COMPUTE_CAP_MAX_COMPUTE_UNITS,
705    PIPE_COMPUTE_CAP_IMAGES_SUPPORTED
706 };
707 
708 /**
709  * Composite query types
710  */
711 
712 /**
713  * Query result for PIPE_QUERY_SO_STATISTICS.
714  */
715 struct pipe_query_data_so_statistics
716 {
717    uint64_t num_primitives_written;
718    uint64_t primitives_storage_needed;
719 };
720 
721 /**
722  * Query result for PIPE_QUERY_TIMESTAMP_DISJOINT.
723  */
724 struct pipe_query_data_timestamp_disjoint
725 {
726    uint64_t frequency;
727    boolean  disjoint;
728 };
729 
730 /**
731  * Query result for PIPE_QUERY_PIPELINE_STATISTICS.
732  */
733 struct pipe_query_data_pipeline_statistics
734 {
735    uint64_t ia_vertices;    /**< Num vertices read by the vertex fetcher. */
736    uint64_t ia_primitives;  /**< Num primitives read by the vertex fetcher. */
737    uint64_t vs_invocations; /**< Num vertex shader invocations. */
738    uint64_t gs_invocations; /**< Num geometry shader invocations. */
739    uint64_t gs_primitives;  /**< Num primitives output by a geometry shader. */
740    uint64_t c_invocations;  /**< Num primitives sent to the rasterizer. */
741    uint64_t c_primitives;   /**< Num primitives that were rendered. */
742    uint64_t ps_invocations; /**< Num pixel shader invocations. */
743    uint64_t hs_invocations; /**< Num hull shader invocations. */
744    uint64_t ds_invocations; /**< Num domain shader invocations. */
745    uint64_t cs_invocations; /**< Num compute shader invocations. */
746 };
747 
748 /**
749  * Query result (returned by pipe_context::get_query_result).
750  */
751 union pipe_query_result
752 {
753    /* PIPE_QUERY_OCCLUSION_PREDICATE */
754    /* PIPE_QUERY_SO_OVERFLOW_PREDICATE */
755    /* PIPE_QUERY_GPU_FINISHED */
756    boolean b;
757 
758    /* PIPE_QUERY_OCCLUSION_COUNTER */
759    /* PIPE_QUERY_TIMESTAMP */
760    /* PIPE_QUERY_TIME_ELAPSED */
761    /* PIPE_QUERY_PRIMITIVES_GENERATED */
762    /* PIPE_QUERY_PRIMITIVES_EMITTED */
763    uint64_t u64;
764 
765    /* PIPE_QUERY_SO_STATISTICS */
766    struct pipe_query_data_so_statistics so_statistics;
767 
768    /* PIPE_QUERY_TIMESTAMP_DISJOINT */
769    struct pipe_query_data_timestamp_disjoint timestamp_disjoint;
770 
771    /* PIPE_QUERY_PIPELINE_STATISTICS */
772    struct pipe_query_data_pipeline_statistics pipeline_statistics;
773 };
774 
775 union pipe_color_union
776 {
777    float f[4];
778    int i[4];
779    unsigned int ui[4];
780 };
781 
782 struct pipe_driver_query_info
783 {
784    const char *name;
785    unsigned query_type; /* PIPE_QUERY_DRIVER_SPECIFIC + i */
786    uint64_t max_value; /* max value that can be returned */
787    boolean uses_byte_units; /* whether the result is in bytes */
788 };
789 
790 #ifdef __cplusplus
791 }
792 #endif
793 
794 #endif
795