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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 
81 enum pipe_logicop {
82    PIPE_LOGICOP_CLEAR,
83    PIPE_LOGICOP_NOR,
84    PIPE_LOGICOP_AND_INVERTED,
85    PIPE_LOGICOP_COPY_INVERTED,
86    PIPE_LOGICOP_AND_REVERSE,
87    PIPE_LOGICOP_INVERT,
88    PIPE_LOGICOP_XOR,
89    PIPE_LOGICOP_NAND,
90    PIPE_LOGICOP_AND,
91    PIPE_LOGICOP_EQUIV,
92    PIPE_LOGICOP_NOOP,
93    PIPE_LOGICOP_OR_INVERTED,
94    PIPE_LOGICOP_COPY,
95    PIPE_LOGICOP_OR_REVERSE,
96    PIPE_LOGICOP_OR,
97    PIPE_LOGICOP_SET,
98 };
99 
100 #define PIPE_MASK_R  0x1
101 #define PIPE_MASK_G  0x2
102 #define PIPE_MASK_B  0x4
103 #define PIPE_MASK_A  0x8
104 #define PIPE_MASK_RGBA 0xf
105 #define PIPE_MASK_Z  0x10
106 #define PIPE_MASK_S  0x20
107 #define PIPE_MASK_ZS 0x30
108 #define PIPE_MASK_RGBAZS (PIPE_MASK_RGBA|PIPE_MASK_ZS)
109 
110 
111 /**
112  * Inequality functions.  Used for depth test, stencil compare, alpha
113  * test, shadow compare, etc.
114  */
115 #define PIPE_FUNC_NEVER    0
116 #define PIPE_FUNC_LESS     1
117 #define PIPE_FUNC_EQUAL    2
118 #define PIPE_FUNC_LEQUAL   3
119 #define PIPE_FUNC_GREATER  4
120 #define PIPE_FUNC_NOTEQUAL 5
121 #define PIPE_FUNC_GEQUAL   6
122 #define PIPE_FUNC_ALWAYS   7
123 
124 /** Polygon fill mode */
125 #define PIPE_POLYGON_MODE_FILL  0
126 #define PIPE_POLYGON_MODE_LINE  1
127 #define PIPE_POLYGON_MODE_POINT 2
128 
129 /** Polygon face specification, eg for culling */
130 #define PIPE_FACE_NONE           0
131 #define PIPE_FACE_FRONT          1
132 #define PIPE_FACE_BACK           2
133 #define PIPE_FACE_FRONT_AND_BACK (PIPE_FACE_FRONT | PIPE_FACE_BACK)
134 
135 /** Stencil ops */
136 #define PIPE_STENCIL_OP_KEEP       0
137 #define PIPE_STENCIL_OP_ZERO       1
138 #define PIPE_STENCIL_OP_REPLACE    2
139 #define PIPE_STENCIL_OP_INCR       3
140 #define PIPE_STENCIL_OP_DECR       4
141 #define PIPE_STENCIL_OP_INCR_WRAP  5
142 #define PIPE_STENCIL_OP_DECR_WRAP  6
143 #define PIPE_STENCIL_OP_INVERT     7
144 
145 /** Texture types.
146  * See the documentation for info on PIPE_TEXTURE_RECT vs PIPE_TEXTURE_2D */
147 enum pipe_texture_target {
148    PIPE_BUFFER           = 0,
149    PIPE_TEXTURE_1D       = 1,
150    PIPE_TEXTURE_2D       = 2,
151    PIPE_TEXTURE_3D       = 3,
152    PIPE_TEXTURE_CUBE     = 4,
153    PIPE_TEXTURE_RECT     = 5,
154    PIPE_TEXTURE_1D_ARRAY = 6,
155    PIPE_TEXTURE_2D_ARRAY = 7,
156    PIPE_TEXTURE_CUBE_ARRAY = 8,
157    PIPE_MAX_TEXTURE_TYPES
158 };
159 
160 #define PIPE_TEX_FACE_POS_X 0
161 #define PIPE_TEX_FACE_NEG_X 1
162 #define PIPE_TEX_FACE_POS_Y 2
163 #define PIPE_TEX_FACE_NEG_Y 3
164 #define PIPE_TEX_FACE_POS_Z 4
165 #define PIPE_TEX_FACE_NEG_Z 5
166 #define PIPE_TEX_FACE_MAX   6
167 
168 #define PIPE_TEX_WRAP_REPEAT                   0
169 #define PIPE_TEX_WRAP_CLAMP                    1
170 #define PIPE_TEX_WRAP_CLAMP_TO_EDGE            2
171 #define PIPE_TEX_WRAP_CLAMP_TO_BORDER          3
172 #define PIPE_TEX_WRAP_MIRROR_REPEAT            4
173 #define PIPE_TEX_WRAP_MIRROR_CLAMP             5
174 #define PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE     6
175 #define PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER   7
176 
177 /* Between mipmaps, ie mipfilter
178  */
179 #define PIPE_TEX_MIPFILTER_NEAREST  0
180 #define PIPE_TEX_MIPFILTER_LINEAR   1
181 #define PIPE_TEX_MIPFILTER_NONE     2
182 
183 /* Within a mipmap, ie min/mag filter
184  */
185 #define PIPE_TEX_FILTER_NEAREST      0
186 #define PIPE_TEX_FILTER_LINEAR       1
187 
188 #define PIPE_TEX_COMPARE_NONE          0
189 #define PIPE_TEX_COMPARE_R_TO_TEXTURE  1
190 
191 /**
192  * Clear buffer bits
193  */
194 #define PIPE_CLEAR_DEPTH        (1 << 0)
195 #define PIPE_CLEAR_STENCIL      (1 << 1)
196 #define PIPE_CLEAR_COLOR0       (1 << 2)
197 #define PIPE_CLEAR_COLOR1       (1 << 3)
198 #define PIPE_CLEAR_COLOR2       (1 << 4)
199 #define PIPE_CLEAR_COLOR3       (1 << 5)
200 #define PIPE_CLEAR_COLOR4       (1 << 6)
201 #define PIPE_CLEAR_COLOR5       (1 << 7)
202 #define PIPE_CLEAR_COLOR6       (1 << 8)
203 #define PIPE_CLEAR_COLOR7       (1 << 9)
204 /** Combined flags */
205 /** All color buffers currently bound */
206 #define PIPE_CLEAR_COLOR        (PIPE_CLEAR_COLOR0 | PIPE_CLEAR_COLOR1 | \
207                                  PIPE_CLEAR_COLOR2 | PIPE_CLEAR_COLOR3 | \
208                                  PIPE_CLEAR_COLOR4 | PIPE_CLEAR_COLOR5 | \
209                                  PIPE_CLEAR_COLOR6 | PIPE_CLEAR_COLOR7)
210 #define PIPE_CLEAR_DEPTHSTENCIL (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL)
211 
212 /**
213  * Transfer object usage flags
214  */
215 enum pipe_transfer_usage {
216    /**
217     * Resource contents read back (or accessed directly) at transfer
218     * create time.
219     */
220    PIPE_TRANSFER_READ = (1 << 0),
221 
222    /**
223     * Resource contents will be written back at transfer_unmap
224     * time (or modified as a result of being accessed directly).
225     */
226    PIPE_TRANSFER_WRITE = (1 << 1),
227 
228    /**
229     * Read/modify/write
230     */
231    PIPE_TRANSFER_READ_WRITE = PIPE_TRANSFER_READ | PIPE_TRANSFER_WRITE,
232 
233    /**
234     * The transfer should map the texture storage directly. The driver may
235     * return NULL if that isn't possible, and the state tracker needs to cope
236     * with that and use an alternative path without this flag.
237     *
238     * E.g. the state tracker could have a simpler path which maps textures and
239     * does read/modify/write cycles on them directly, and a more complicated
240     * path which uses minimal read and write transfers.
241     */
242    PIPE_TRANSFER_MAP_DIRECTLY = (1 << 2),
243 
244    /**
245     * Discards the memory within the mapped region.
246     *
247     * It should not be used with PIPE_TRANSFER_READ.
248     *
249     * See also:
250     * - OpenGL's ARB_map_buffer_range extension, MAP_INVALIDATE_RANGE_BIT flag.
251     */
252    PIPE_TRANSFER_DISCARD_RANGE = (1 << 8),
253 
254    /**
255     * Fail if the resource cannot be mapped immediately.
256     *
257     * See also:
258     * - Direct3D's D3DLOCK_DONOTWAIT flag.
259     * - Mesa3D's MESA_MAP_NOWAIT_BIT flag.
260     * - WDDM's D3DDDICB_LOCKFLAGS.DonotWait flag.
261     */
262    PIPE_TRANSFER_DONTBLOCK = (1 << 9),
263 
264    /**
265     * Do not attempt to synchronize pending operations on the resource when mapping.
266     *
267     * It should not be used with PIPE_TRANSFER_READ.
268     *
269     * See also:
270     * - OpenGL's ARB_map_buffer_range extension, MAP_UNSYNCHRONIZED_BIT flag.
271     * - Direct3D's D3DLOCK_NOOVERWRITE flag.
272     * - WDDM's D3DDDICB_LOCKFLAGS.IgnoreSync flag.
273     */
274    PIPE_TRANSFER_UNSYNCHRONIZED = (1 << 10),
275 
276    /**
277     * Written ranges will be notified later with
278     * pipe_context::transfer_flush_region.
279     *
280     * It should not be used with PIPE_TRANSFER_READ.
281     *
282     * See also:
283     * - pipe_context::transfer_flush_region
284     * - OpenGL's ARB_map_buffer_range extension, MAP_FLUSH_EXPLICIT_BIT flag.
285     */
286    PIPE_TRANSFER_FLUSH_EXPLICIT = (1 << 11),
287 
288    /**
289     * Discards all memory backing the resource.
290     *
291     * It should not be used with PIPE_TRANSFER_READ.
292     *
293     * This is equivalent to:
294     * - OpenGL's ARB_map_buffer_range extension, MAP_INVALIDATE_BUFFER_BIT
295     * - BufferData(NULL) on a GL buffer
296     * - Direct3D's D3DLOCK_DISCARD flag.
297     * - WDDM's D3DDDICB_LOCKFLAGS.Discard flag.
298     * - D3D10 DDI's D3D10_DDI_MAP_WRITE_DISCARD flag
299     * - D3D10's D3D10_MAP_WRITE_DISCARD flag.
300     */
301    PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE = (1 << 12),
302 
303    /**
304     * Allows the resource to be used for rendering while mapped.
305     *
306     * PIPE_RESOURCE_FLAG_MAP_PERSISTENT must be set when creating
307     * the resource.
308     *
309     * If COHERENT is not set, memory_barrier(PIPE_BARRIER_MAPPED_BUFFER)
310     * must be called to ensure the device can see what the CPU has written.
311     */
312    PIPE_TRANSFER_PERSISTENT = (1 << 13),
313 
314    /**
315     * If PERSISTENT is set, this ensures any writes done by the device are
316     * immediately visible to the CPU and vice versa.
317     *
318     * PIPE_RESOURCE_FLAG_MAP_COHERENT must be set when creating
319     * the resource.
320     */
321    PIPE_TRANSFER_COHERENT = (1 << 14)
322 };
323 
324 /**
325  * Flags for the flush function.
326  */
327 enum pipe_flush_flags {
328    PIPE_FLUSH_END_OF_FRAME = (1 << 0)
329 };
330 
331 /**
332  * Flags for pipe_context::memory_barrier.
333  */
334 #define PIPE_BARRIER_MAPPED_BUFFER     (1 << 0)
335 #define PIPE_BARRIER_SHADER_BUFFER     (1 << 1)
336 #define PIPE_BARRIER_QUERY_BUFFER      (1 << 2)
337 #define PIPE_BARRIER_VERTEX_BUFFER     (1 << 3)
338 #define PIPE_BARRIER_INDEX_BUFFER      (1 << 4)
339 #define PIPE_BARRIER_CONSTANT_BUFFER   (1 << 5)
340 #define PIPE_BARRIER_INDIRECT_BUFFER   (1 << 6)
341 #define PIPE_BARRIER_TEXTURE           (1 << 7)
342 #define PIPE_BARRIER_IMAGE             (1 << 8)
343 #define PIPE_BARRIER_FRAMEBUFFER       (1 << 9)
344 #define PIPE_BARRIER_STREAMOUT_BUFFER  (1 << 10)
345 #define PIPE_BARRIER_GLOBAL_BUFFER     (1 << 11)
346 #define PIPE_BARRIER_ALL               ((1 << 12) - 1)
347 
348 /**
349  * Flags for pipe_context::texture_barrier.
350  */
351 #define PIPE_TEXTURE_BARRIER_SAMPLER      (1 << 0)
352 #define PIPE_TEXTURE_BARRIER_FRAMEBUFFER  (1 << 1)
353 
354 /*
355  * Resource binding flags -- state tracker must specify in advance all
356  * the ways a resource might be used.
357  */
358 #define PIPE_BIND_DEPTH_STENCIL        (1 << 0) /* create_surface */
359 #define PIPE_BIND_RENDER_TARGET        (1 << 1) /* create_surface */
360 #define PIPE_BIND_BLENDABLE            (1 << 2) /* create_surface */
361 #define PIPE_BIND_SAMPLER_VIEW         (1 << 3) /* create_sampler_view */
362 #define PIPE_BIND_VERTEX_BUFFER        (1 << 4) /* set_vertex_buffers */
363 #define PIPE_BIND_INDEX_BUFFER         (1 << 5) /* draw_elements */
364 #define PIPE_BIND_CONSTANT_BUFFER      (1 << 6) /* set_constant_buffer */
365 #define PIPE_BIND_DISPLAY_TARGET       (1 << 8) /* flush_front_buffer */
366 #define PIPE_BIND_TRANSFER_WRITE       (1 << 9) /* transfer_map */
367 #define PIPE_BIND_TRANSFER_READ        (1 << 10) /* transfer_map */
368 #define PIPE_BIND_STREAM_OUTPUT        (1 << 11) /* set_stream_output_buffers */
369 #define PIPE_BIND_CURSOR               (1 << 16) /* mouse cursor */
370 #define PIPE_BIND_CUSTOM               (1 << 17) /* state-tracker/winsys usages */
371 #define PIPE_BIND_GLOBAL               (1 << 18) /* set_global_binding */
372 #define PIPE_BIND_SHADER_RESOURCE      (1 << 19) /* set_shader_resources */
373 #define PIPE_BIND_COMPUTE_RESOURCE     (1 << 20) /* set_compute_resources */
374 #define PIPE_BIND_COMMAND_ARGS_BUFFER  (1 << 21) /* pipe_draw_info.indirect */
375 #define PIPE_BIND_QUERY_BUFFER         (1 << 22) /* get_query_result_resource */
376 
377 /* The first two flags above were previously part of the amorphous
378  * TEXTURE_USAGE, most of which are now descriptions of the ways a
379  * particular texture can be bound to the gallium pipeline.  The two flags
380  * below do not fit within that and probably need to be migrated to some
381  * other place.
382  *
383  * It seems like scanout is used by the Xorg state tracker to ask for
384  * a texture suitable for actual scanout (hence the name), which
385  * implies extra layout constraints on some hardware.  It may also
386  * have some special meaning regarding mouse cursor images.
387  *
388  * The shared flag is quite underspecified, but certainly isn't a
389  * binding flag - it seems more like a message to the winsys to create
390  * a shareable allocation.
391  *
392  * The third flag has been added to be able to force textures to be created
393  * in linear mode (no tiling).
394  */
395 #define PIPE_BIND_SCANOUT     (1 << 14) /*  */
396 #define PIPE_BIND_SHARED      (1 << 15) /* get_texture_handle ??? */
397 #define PIPE_BIND_LINEAR      (1 << 21)
398 
399 
400 /* Flags for the driver about resource behaviour:
401  */
402 #define PIPE_RESOURCE_FLAG_MAP_PERSISTENT (1 << 0)
403 #define PIPE_RESOURCE_FLAG_MAP_COHERENT   (1 << 1)
404 #define PIPE_RESOURCE_FLAG_DRV_PRIV    (1 << 16) /* driver/winsys private */
405 #define PIPE_RESOURCE_FLAG_ST_PRIV     (1 << 24) /* state-tracker/winsys private */
406 
407 /* Hint about the expected lifecycle of a resource.
408  * Sorted according to GPU vs CPU access.
409  */
410 #define PIPE_USAGE_DEFAULT        0 /* fast GPU access */
411 #define PIPE_USAGE_IMMUTABLE      1 /* fast GPU access, immutable */
412 #define PIPE_USAGE_DYNAMIC        2 /* uploaded data is used multiple times */
413 #define PIPE_USAGE_STREAM         3 /* uploaded data is used once */
414 #define PIPE_USAGE_STAGING        4 /* fast CPU access */
415 
416 
417 /**
418  * Shaders
419  */
420 #define PIPE_SHADER_VERTEX   0
421 #define PIPE_SHADER_FRAGMENT 1
422 #define PIPE_SHADER_GEOMETRY 2
423 #define PIPE_SHADER_TESS_CTRL 3
424 #define PIPE_SHADER_TESS_EVAL 4
425 #define PIPE_SHADER_COMPUTE  5
426 #define PIPE_SHADER_TYPES    6
427 
428 
429 /**
430  * Primitive types:
431  */
432 #define PIPE_PRIM_POINTS                    0
433 #define PIPE_PRIM_LINES                     1
434 #define PIPE_PRIM_LINE_LOOP                 2
435 #define PIPE_PRIM_LINE_STRIP                3
436 #define PIPE_PRIM_TRIANGLES                 4
437 #define PIPE_PRIM_TRIANGLE_STRIP            5
438 #define PIPE_PRIM_TRIANGLE_FAN              6
439 #define PIPE_PRIM_QUADS                     7
440 #define PIPE_PRIM_QUAD_STRIP                8
441 #define PIPE_PRIM_POLYGON                   9
442 #define PIPE_PRIM_LINES_ADJACENCY          10
443 #define PIPE_PRIM_LINE_STRIP_ADJACENCY     11
444 #define PIPE_PRIM_TRIANGLES_ADJACENCY      12
445 #define PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY 13
446 #define PIPE_PRIM_PATCHES                  14
447 #define PIPE_PRIM_MAX                      15
448 
449 
450 /**
451  * Tessellator spacing types
452  */
453 #define PIPE_TESS_SPACING_FRACTIONAL_ODD    0
454 #define PIPE_TESS_SPACING_FRACTIONAL_EVEN   1
455 #define PIPE_TESS_SPACING_EQUAL             2
456 
457 /**
458  * Query object types
459  */
460 #define PIPE_QUERY_OCCLUSION_COUNTER     0
461 #define PIPE_QUERY_OCCLUSION_PREDICATE   1
462 #define PIPE_QUERY_TIMESTAMP             2
463 #define PIPE_QUERY_TIMESTAMP_DISJOINT    3
464 #define PIPE_QUERY_TIME_ELAPSED          4
465 #define PIPE_QUERY_PRIMITIVES_GENERATED  5
466 #define PIPE_QUERY_PRIMITIVES_EMITTED    6
467 #define PIPE_QUERY_SO_STATISTICS         7
468 #define PIPE_QUERY_SO_OVERFLOW_PREDICATE 8
469 #define PIPE_QUERY_GPU_FINISHED          9
470 #define PIPE_QUERY_PIPELINE_STATISTICS  10
471 #define PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE 11
472 #define PIPE_QUERY_SO_OVERFLOW_ANY_PREDICATE 12
473 #define PIPE_QUERY_TYPES                13
474 
475 /* start of driver queries,
476  * see pipe_screen::get_driver_query_info */
477 #define PIPE_QUERY_DRIVER_SPECIFIC     256
478 
479 
480 /**
481  * Conditional rendering modes
482  */
483 #define PIPE_RENDER_COND_WAIT              0
484 #define PIPE_RENDER_COND_NO_WAIT           1
485 #define PIPE_RENDER_COND_BY_REGION_WAIT    2
486 #define PIPE_RENDER_COND_BY_REGION_NO_WAIT 3
487 
488 
489 /**
490  * Point sprite coord modes
491  */
492 #define PIPE_SPRITE_COORD_UPPER_LEFT 0
493 #define PIPE_SPRITE_COORD_LOWER_LEFT 1
494 
495 
496 /**
497  * Texture swizzles
498  */
499 #define PIPE_SWIZZLE_RED   0
500 #define PIPE_SWIZZLE_GREEN 1
501 #define PIPE_SWIZZLE_BLUE  2
502 #define PIPE_SWIZZLE_ALPHA 3
503 #define PIPE_SWIZZLE_ZERO  4
504 #define PIPE_SWIZZLE_ONE   5
505 
506 
507 #define PIPE_TIMEOUT_INFINITE 0xffffffffffffffffull
508 
509 /**
510  * pipe_image_view access flags.
511  */
512 #define PIPE_IMAGE_ACCESS_READ       (1 << 0)
513 #define PIPE_IMAGE_ACCESS_WRITE      (1 << 1)
514 #define PIPE_IMAGE_ACCESS_READ_WRITE (PIPE_IMAGE_ACCESS_READ | \
515                                       PIPE_IMAGE_ACCESS_WRITE)
516 
517 /**
518  * Implementation capabilities/limits which are queried through
519  * pipe_screen::get_param()
520  */
521 enum pipe_cap {
522    PIPE_CAP_NPOT_TEXTURES = 1,
523    PIPE_CAP_TWO_SIDED_STENCIL = 2,
524    PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS = 4,
525    PIPE_CAP_ANISOTROPIC_FILTER = 5,
526    PIPE_CAP_POINT_SPRITE = 6,
527    PIPE_CAP_MAX_RENDER_TARGETS = 7,
528    PIPE_CAP_OCCLUSION_QUERY = 8,
529    PIPE_CAP_QUERY_TIME_ELAPSED = 9,
530    PIPE_CAP_TEXTURE_SHADOW_MAP = 10,
531    PIPE_CAP_TEXTURE_SWIZZLE = 11,
532    PIPE_CAP_MAX_TEXTURE_2D_LEVELS = 12,
533    PIPE_CAP_MAX_TEXTURE_3D_LEVELS = 13,
534    PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS = 14,
535    PIPE_CAP_TEXTURE_MIRROR_CLAMP = 25,
536    PIPE_CAP_BLEND_EQUATION_SEPARATE = 28,
537    PIPE_CAP_SM3 = 29,  /*< Shader Model, supported */
538    PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS = 30,
539    PIPE_CAP_PRIMITIVE_RESTART = 31,
540    /** blend enables and write masks per rendertarget */
541    PIPE_CAP_INDEP_BLEND_ENABLE = 33,
542    /** different blend funcs per rendertarget */
543    PIPE_CAP_INDEP_BLEND_FUNC = 34,
544    PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS = 36,
545    PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT = 37,
546    PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT = 38,
547    PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER = 39,
548    PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER = 40,
549    PIPE_CAP_DEPTH_CLIP_DISABLE = 41,
550    PIPE_CAP_SHADER_STENCIL_EXPORT = 42,
551    PIPE_CAP_TGSI_INSTANCEID = 43,
552    PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR = 44,
553    PIPE_CAP_FRAGMENT_COLOR_CLAMPED = 45,
554    PIPE_CAP_MIXED_COLORBUFFER_FORMATS = 46,
555    PIPE_CAP_SEAMLESS_CUBE_MAP = 47,
556    PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE = 48,
557    PIPE_CAP_MIN_TEXEL_OFFSET = 50,
558    PIPE_CAP_MAX_TEXEL_OFFSET = 51,
559    PIPE_CAP_CONDITIONAL_RENDER = 52,
560    PIPE_CAP_TEXTURE_BARRIER = 53,
561    PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS = 55,
562    PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS = 56,
563    PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME = 57,
564    PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS = 59, /* temporary */
565    PIPE_CAP_VERTEX_COLOR_UNCLAMPED = 60,
566    PIPE_CAP_VERTEX_COLOR_CLAMPED = 61,
567    PIPE_CAP_GLSL_FEATURE_LEVEL = 62,
568    PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION = 63,
569    PIPE_CAP_USER_VERTEX_BUFFERS = 64,
570    PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY = 65,
571    PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY = 66,
572    PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY = 67,
573    PIPE_CAP_COMPUTE = 68,
574    PIPE_CAP_USER_INDEX_BUFFERS = 69,
575    PIPE_CAP_USER_CONSTANT_BUFFERS = 70,
576    PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT = 71,
577    PIPE_CAP_START_INSTANCE = 72,
578    PIPE_CAP_QUERY_TIMESTAMP = 73,
579    PIPE_CAP_TEXTURE_MULTISAMPLE = 74,
580    PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT = 75,
581    PIPE_CAP_CUBE_MAP_ARRAY = 76,
582    PIPE_CAP_TEXTURE_BUFFER_OBJECTS = 77,
583    PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT = 78,
584    PIPE_CAP_TGSI_TEXCOORD = 79,
585    PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER = 80,
586    PIPE_CAP_QUERY_PIPELINE_STATISTICS = 81,
587    PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK = 82,
588    PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE = 83,
589    PIPE_CAP_MAX_VIEWPORTS = 84,
590    PIPE_CAP_ENDIANNESS = 85,
591    PIPE_CAP_MIXED_FRAMEBUFFER_SIZES = 86,
592    PIPE_CAP_TGSI_VS_LAYER_VIEWPORT = 87,
593    PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES = 88,
594    PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS = 89,
595    PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS = 90,
596    PIPE_CAP_TEXTURE_GATHER_SM5 = 91,
597    PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT = 92,
598    PIPE_CAP_FAKE_SW_MSAA = 93,
599    PIPE_CAP_TEXTURE_QUERY_LOD = 94,
600    PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET = 95,
601    PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET = 96,
602    PIPE_CAP_SAMPLE_SHADING = 97,
603    PIPE_CAP_TEXTURE_GATHER_OFFSETS = 98,
604    PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION = 99,
605    PIPE_CAP_MAX_VERTEX_STREAMS = 100,
606    PIPE_CAP_DRAW_INDIRECT = 101,
607    PIPE_CAP_TGSI_FS_FINE_DERIVATIVE = 102,
608    PIPE_CAP_VENDOR_ID = 103,
609    PIPE_CAP_DEVICE_ID = 104,
610    PIPE_CAP_ACCELERATED = 105,
611    PIPE_CAP_VIDEO_MEMORY = 106,
612    PIPE_CAP_UMA = 107,
613    PIPE_CAP_CONDITIONAL_RENDER_INVERTED = 108,
614    PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE = 109,
615    PIPE_CAP_SAMPLER_VIEW_TARGET = 110,
616    PIPE_CAP_CLIP_HALFZ = 111,
617    PIPE_CAP_VERTEXID_NOBASE = 112,
618    PIPE_CAP_POLYGON_OFFSET_CLAMP = 113,
619 };
620 
621 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)
622 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600 (1 << 1)
623 
624 enum pipe_endian {
625    PIPE_ENDIAN_LITTLE = 0,
626    PIPE_ENDIAN_BIG = 1,
627 #if defined(PIPE_ARCH_LITTLE_ENDIAN)
628    PIPE_ENDIAN_NATIVE = PIPE_ENDIAN_LITTLE
629 #elif defined(PIPE_ARCH_BIG_ENDIAN)
630    PIPE_ENDIAN_NATIVE = PIPE_ENDIAN_BIG
631 #endif
632 };
633 
634 /**
635  * Implementation limits which are queried through
636  * pipe_screen::get_paramf()
637  */
638 enum pipe_capf
639 {
640    PIPE_CAPF_MAX_LINE_WIDTH,
641    PIPE_CAPF_MAX_LINE_WIDTH_AA,
642    PIPE_CAPF_MAX_POINT_WIDTH,
643    PIPE_CAPF_MAX_POINT_WIDTH_AA,
644    PIPE_CAPF_MAX_TEXTURE_ANISOTROPY,
645    PIPE_CAPF_MAX_TEXTURE_LOD_BIAS,
646    PIPE_CAPF_GUARD_BAND_LEFT,
647    PIPE_CAPF_GUARD_BAND_TOP,
648    PIPE_CAPF_GUARD_BAND_RIGHT,
649    PIPE_CAPF_GUARD_BAND_BOTTOM
650 };
651 
652 /* Shader caps not specific to any single stage */
653 enum pipe_shader_cap
654 {
655    PIPE_SHADER_CAP_MAX_INSTRUCTIONS, /* if 0, it means the stage is unsupported */
656    PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS,
657    PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS,
658    PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS,
659    PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH,
660    PIPE_SHADER_CAP_MAX_INPUTS,
661    PIPE_SHADER_CAP_MAX_OUTPUTS,
662    PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE,
663    PIPE_SHADER_CAP_MAX_CONST_BUFFERS,
664    PIPE_SHADER_CAP_MAX_TEMPS,
665    PIPE_SHADER_CAP_MAX_PREDS,
666    /* boolean caps */
667    PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED,
668    PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR,
669    PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR,
670    PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR,
671    PIPE_SHADER_CAP_INDIRECT_CONST_ADDR,
672    PIPE_SHADER_CAP_SUBROUTINES, /* BGNSUB, ENDSUB, CAL, RET */
673    PIPE_SHADER_CAP_INTEGERS,
674    PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS,
675    PIPE_SHADER_CAP_PREFERRED_IR,
676    PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED,
677    PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS,
678    PIPE_SHADER_CAP_DOUBLES
679 };
680 
681 /**
682  * Shader intermediate representation.
683  */
684 enum pipe_shader_ir
685 {
686    PIPE_SHADER_IR_TGSI,
687    PIPE_SHADER_IR_LLVM,
688    PIPE_SHADER_IR_NATIVE
689 };
690 
691 /**
692  * Compute-specific implementation capability.  They can be queried
693  * using pipe_screen::get_compute_param.
694  */
695 enum pipe_compute_cap
696 {
697    PIPE_COMPUTE_CAP_IR_TARGET,
698    PIPE_COMPUTE_CAP_GRID_DIMENSION,
699    PIPE_COMPUTE_CAP_MAX_GRID_SIZE,
700    PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE,
701    PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
702    PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE,
703    PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
704    PIPE_COMPUTE_CAP_MAX_PRIVATE_SIZE,
705    PIPE_COMPUTE_CAP_MAX_INPUT_SIZE,
706    PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE,
707    PIPE_COMPUTE_CAP_MAX_CLOCK_FREQUENCY,
708    PIPE_COMPUTE_CAP_MAX_COMPUTE_UNITS,
709    PIPE_COMPUTE_CAP_IMAGES_SUPPORTED
710 };
711 
712 /**
713  * Composite query types
714  */
715 
716 /**
717  * Query result for PIPE_QUERY_SO_STATISTICS.
718  */
719 struct pipe_query_data_so_statistics
720 {
721    uint64_t num_primitives_written;
722    uint64_t primitives_storage_needed;
723 };
724 
725 /**
726  * Query result for PIPE_QUERY_TIMESTAMP_DISJOINT.
727  */
728 struct pipe_query_data_timestamp_disjoint
729 {
730    uint64_t frequency;
731    boolean  disjoint;
732 };
733 
734 /**
735  * Query result for PIPE_QUERY_PIPELINE_STATISTICS.
736  */
737 struct pipe_query_data_pipeline_statistics
738 {
739    uint64_t ia_vertices;    /**< Num vertices read by the vertex fetcher. */
740    uint64_t ia_primitives;  /**< Num primitives read by the vertex fetcher. */
741    uint64_t vs_invocations; /**< Num vertex shader invocations. */
742    uint64_t gs_invocations; /**< Num geometry shader invocations. */
743    uint64_t gs_primitives;  /**< Num primitives output by a geometry shader. */
744    uint64_t c_invocations;  /**< Num primitives sent to the rasterizer. */
745    uint64_t c_primitives;   /**< Num primitives that were rendered. */
746    uint64_t ps_invocations; /**< Num pixel shader invocations. */
747    uint64_t hs_invocations; /**< Num hull shader invocations. */
748    uint64_t ds_invocations; /**< Num domain shader invocations. */
749    uint64_t cs_invocations; /**< Num compute shader invocations. */
750 };
751 
752 /**
753  * Query result (returned by pipe_context::get_query_result).
754  */
755 union pipe_query_result
756 {
757    /* PIPE_QUERY_OCCLUSION_PREDICATE */
758    /* PIPE_QUERY_SO_OVERFLOW_PREDICATE */
759    /* PIPE_QUERY_GPU_FINISHED */
760    boolean b;
761 
762    /* PIPE_QUERY_OCCLUSION_COUNTER */
763    /* PIPE_QUERY_TIMESTAMP */
764    /* PIPE_QUERY_TIME_ELAPSED */
765    /* PIPE_QUERY_PRIMITIVES_GENERATED */
766    /* PIPE_QUERY_PRIMITIVES_EMITTED */
767    uint64_t u64;
768 
769    /* PIPE_QUERY_SO_STATISTICS */
770    struct pipe_query_data_so_statistics so_statistics;
771 
772    /* PIPE_QUERY_TIMESTAMP_DISJOINT */
773    struct pipe_query_data_timestamp_disjoint timestamp_disjoint;
774 
775    /* PIPE_QUERY_PIPELINE_STATISTICS */
776    struct pipe_query_data_pipeline_statistics pipeline_statistics;
777 };
778 
779 enum pipe_query_value_type
780 {
781    PIPE_QUERY_TYPE_I32,
782    PIPE_QUERY_TYPE_U32,
783    PIPE_QUERY_TYPE_I64,
784    PIPE_QUERY_TYPE_U64,
785 };
786 
787 union pipe_color_union
788 {
789    float f[4];
790    int i[4];
791    unsigned int ui[4];
792 };
793 
794 struct pipe_driver_query_info
795 {
796    const char *name;
797    unsigned query_type; /* PIPE_QUERY_DRIVER_SPECIFIC + i */
798    uint64_t max_value; /* max value that can be returned */
799    boolean uses_byte_units; /* whether the result is in bytes */
800 };
801 
802 #ifdef __cplusplus
803 }
804 #endif
805 
806 #endif
807