1 /**************************************************************************
2  *
3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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 TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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_MAX_TEXTURE_TYPES
154 };
155 
156 #define PIPE_TEX_FACE_POS_X 0
157 #define PIPE_TEX_FACE_NEG_X 1
158 #define PIPE_TEX_FACE_POS_Y 2
159 #define PIPE_TEX_FACE_NEG_Y 3
160 #define PIPE_TEX_FACE_POS_Z 4
161 #define PIPE_TEX_FACE_NEG_Z 5
162 #define PIPE_TEX_FACE_MAX   6
163 
164 #define PIPE_TEX_WRAP_REPEAT                   0
165 #define PIPE_TEX_WRAP_CLAMP                    1
166 #define PIPE_TEX_WRAP_CLAMP_TO_EDGE            2
167 #define PIPE_TEX_WRAP_CLAMP_TO_BORDER          3
168 #define PIPE_TEX_WRAP_MIRROR_REPEAT            4
169 #define PIPE_TEX_WRAP_MIRROR_CLAMP             5
170 #define PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE     6
171 #define PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER   7
172 
173 /* Between mipmaps, ie mipfilter
174  */
175 #define PIPE_TEX_MIPFILTER_NEAREST  0
176 #define PIPE_TEX_MIPFILTER_LINEAR   1
177 #define PIPE_TEX_MIPFILTER_NONE     2
178 
179 /* Within a mipmap, ie min/mag filter
180  */
181 #define PIPE_TEX_FILTER_NEAREST      0
182 #define PIPE_TEX_FILTER_LINEAR       1
183 
184 #define PIPE_TEX_COMPARE_NONE          0
185 #define PIPE_TEX_COMPARE_R_TO_TEXTURE  1
186 
187 /**
188  * Clear buffer bits
189  */
190 /** All color buffers currently bound */
191 #define PIPE_CLEAR_COLOR        (1 << 0)
192 #define PIPE_CLEAR_DEPTH        (1 << 1)
193 #define PIPE_CLEAR_STENCIL      (1 << 2)
194 /** Depth/stencil combined */
195 #define PIPE_CLEAR_DEPTHSTENCIL (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL)
196 
197 /**
198  * Transfer object usage flags
199  */
200 enum pipe_transfer_usage {
201    /**
202     * Resource contents read back (or accessed directly) at transfer
203     * create time.
204     */
205    PIPE_TRANSFER_READ = (1 << 0),
206 
207    /**
208     * Resource contents will be written back at transfer_destroy
209     * time (or modified as a result of being accessed directly).
210     */
211    PIPE_TRANSFER_WRITE = (1 << 1),
212 
213    /**
214     * Read/modify/write
215     */
216    PIPE_TRANSFER_READ_WRITE = PIPE_TRANSFER_READ | PIPE_TRANSFER_WRITE,
217 
218    /**
219     * The transfer should map the texture storage directly. The driver may
220     * return NULL if that isn't possible, and the state tracker needs to cope
221     * with that and use an alternative path without this flag.
222     *
223     * E.g. the state tracker could have a simpler path which maps textures and
224     * does read/modify/write cycles on them directly, and a more complicated
225     * path which uses minimal read and write transfers.
226     */
227    PIPE_TRANSFER_MAP_DIRECTLY = (1 << 2),
228 
229    /**
230     * Discards the memory within the mapped region.
231     *
232     * It should not be used with PIPE_TRANSFER_READ.
233     *
234     * See also:
235     * - OpenGL's ARB_map_buffer_range extension, MAP_INVALIDATE_RANGE_BIT flag.
236     */
237    PIPE_TRANSFER_DISCARD_RANGE = (1 << 8),
238 
239    /**
240     * Fail if the resource cannot be mapped immediately.
241     *
242     * See also:
243     * - Direct3D's D3DLOCK_DONOTWAIT flag.
244     * - Mesa3D's MESA_MAP_NOWAIT_BIT flag.
245     * - WDDM's D3DDDICB_LOCKFLAGS.DonotWait flag.
246     */
247    PIPE_TRANSFER_DONTBLOCK = (1 << 9),
248 
249    /**
250     * Do not attempt to synchronize pending operations on the resource when mapping.
251     *
252     * It should not be used with PIPE_TRANSFER_READ.
253     *
254     * See also:
255     * - OpenGL's ARB_map_buffer_range extension, MAP_UNSYNCHRONIZED_BIT flag.
256     * - Direct3D's D3DLOCK_NOOVERWRITE flag.
257     * - WDDM's D3DDDICB_LOCKFLAGS.IgnoreSync flag.
258     */
259    PIPE_TRANSFER_UNSYNCHRONIZED = (1 << 10),
260 
261    /**
262     * Written ranges will be notified later with
263     * pipe_context::transfer_flush_region.
264     *
265     * It should not be used with PIPE_TRANSFER_READ.
266     *
267     * See also:
268     * - pipe_context::transfer_flush_region
269     * - OpenGL's ARB_map_buffer_range extension, MAP_FLUSH_EXPLICIT_BIT flag.
270     */
271    PIPE_TRANSFER_FLUSH_EXPLICIT = (1 << 11),
272 
273    /**
274     * Discards all memory backing the resource.
275     *
276     * It should not be used with PIPE_TRANSFER_READ.
277     *
278     * This is equivalent to:
279     * - OpenGL's ARB_map_buffer_range extension, MAP_INVALIDATE_BUFFER_BIT
280     * - BufferData(NULL) on a GL buffer
281     * - Direct3D's D3DLOCK_DISCARD flag.
282     * - WDDM's D3DDDICB_LOCKFLAGS.Discard flag.
283     * - D3D10 DDI's D3D10_DDI_MAP_WRITE_DISCARD flag
284     * - D3D10's D3D10_MAP_WRITE_DISCARD flag.
285     */
286    PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE = (1 << 12)
287 
288 };
289 
290 
291 /*
292  * Resource binding flags -- state tracker must specify in advance all
293  * the ways a resource might be used.
294  */
295 #define PIPE_BIND_DEPTH_STENCIL        (1 << 0) /* create_surface */
296 #define PIPE_BIND_RENDER_TARGET        (1 << 1) /* create_surface */
297 #define PIPE_BIND_BLENDABLE            (1 << 2) /* create_surface */
298 #define PIPE_BIND_SAMPLER_VIEW         (1 << 3) /* create_sampler_view */
299 #define PIPE_BIND_VERTEX_BUFFER        (1 << 4) /* set_vertex_buffers */
300 #define PIPE_BIND_INDEX_BUFFER         (1 << 5) /* draw_elements */
301 #define PIPE_BIND_CONSTANT_BUFFER      (1 << 6) /* set_constant_buffer */
302 #define PIPE_BIND_DISPLAY_TARGET       (1 << 8) /* flush_front_buffer */
303 #define PIPE_BIND_TRANSFER_WRITE       (1 << 9) /* get_transfer */
304 #define PIPE_BIND_TRANSFER_READ        (1 << 10) /* get_transfer */
305 #define PIPE_BIND_STREAM_OUTPUT        (1 << 11) /* set_stream_output_buffers */
306 #define PIPE_BIND_CURSOR               (1 << 16) /* mouse cursor */
307 #define PIPE_BIND_CUSTOM               (1 << 17) /* state-tracker/winsys usages */
308 #define PIPE_BIND_GLOBAL               (1 << 18) /* set_global_binding */
309 #define PIPE_BIND_SHADER_RESOURCE      (1 << 19) /* set_shader_resources */
310 #define PIPE_BIND_COMPUTE_RESOURCE     (1 << 20) /* set_compute_resources */
311 
312 /* The first two flags above were previously part of the amorphous
313  * TEXTURE_USAGE, most of which are now descriptions of the ways a
314  * particular texture can be bound to the gallium pipeline.  The two flags
315  * below do not fit within that and probably need to be migrated to some
316  * other place.
317  *
318  * It seems like scanout is used by the Xorg state tracker to ask for
319  * a texture suitable for actual scanout (hence the name), which
320  * implies extra layout constraints on some hardware.  It may also
321  * have some special meaning regarding mouse cursor images.
322  *
323  * The shared flag is quite underspecified, but certainly isn't a
324  * binding flag - it seems more like a message to the winsys to create
325  * a shareable allocation.
326  */
327 #define PIPE_BIND_SCANOUT     (1 << 14) /*  */
328 #define PIPE_BIND_SHARED      (1 << 15) /* get_texture_handle ??? */
329 
330 
331 /* Flags for the driver about resource behaviour:
332  */
333 #define PIPE_RESOURCE_FLAG_GEN_MIPS    (1 << 0)  /* Driver performs autogen mips */
334 #define PIPE_RESOURCE_FLAG_DRV_PRIV    (1 << 16) /* driver/winsys private */
335 #define PIPE_RESOURCE_FLAG_ST_PRIV     (1 << 24) /* state-tracker/winsys private */
336 
337 /* Hint about the expected lifecycle of a resource.
338  */
339 #define PIPE_USAGE_DEFAULT        0 /* many uploads, draws intermixed */
340 #define PIPE_USAGE_DYNAMIC        1 /* many uploads, draws intermixed */
341 #define PIPE_USAGE_STATIC         2 /* same as immutable?? */
342 #define PIPE_USAGE_IMMUTABLE      3 /* no change after first upload */
343 #define PIPE_USAGE_STREAM         4 /* upload, draw, upload, draw */
344 #define PIPE_USAGE_STAGING        5 /* supports data transfers from the GPU to the CPU */
345 
346 
347 /**
348  * Shaders
349  */
350 #define PIPE_SHADER_VERTEX   0
351 #define PIPE_SHADER_FRAGMENT 1
352 #define PIPE_SHADER_GEOMETRY 2
353 #define PIPE_SHADER_COMPUTE  3
354 #define PIPE_SHADER_TYPES    4
355 
356 
357 /**
358  * Primitive types:
359  */
360 #define PIPE_PRIM_POINTS               0
361 #define PIPE_PRIM_LINES                1
362 #define PIPE_PRIM_LINE_LOOP            2
363 #define PIPE_PRIM_LINE_STRIP           3
364 #define PIPE_PRIM_TRIANGLES            4
365 #define PIPE_PRIM_TRIANGLE_STRIP       5
366 #define PIPE_PRIM_TRIANGLE_FAN         6
367 #define PIPE_PRIM_QUADS                7
368 #define PIPE_PRIM_QUAD_STRIP           8
369 #define PIPE_PRIM_POLYGON              9
370 #define PIPE_PRIM_LINES_ADJACENCY          10
371 #define PIPE_PRIM_LINE_STRIP_ADJACENCY    11
372 #define PIPE_PRIM_TRIANGLES_ADJACENCY      12
373 #define PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY 13
374 #define PIPE_PRIM_MAX                      14
375 
376 
377 /**
378  * Query object types
379  */
380 #define PIPE_QUERY_OCCLUSION_COUNTER     0
381 #define PIPE_QUERY_OCCLUSION_PREDICATE   1
382 #define PIPE_QUERY_TIMESTAMP             2
383 #define PIPE_QUERY_TIMESTAMP_DISJOINT    3
384 #define PIPE_QUERY_TIME_ELAPSED          4
385 #define PIPE_QUERY_PRIMITIVES_GENERATED  5
386 #define PIPE_QUERY_PRIMITIVES_EMITTED    6
387 #define PIPE_QUERY_SO_STATISTICS         7
388 #define PIPE_QUERY_SO_OVERFLOW_PREDICATE 8
389 #define PIPE_QUERY_GPU_FINISHED          9
390 #define PIPE_QUERY_PIPELINE_STATISTICS  10
391 #define PIPE_QUERY_TYPES                11
392 
393 
394 /**
395  * Conditional rendering modes
396  */
397 #define PIPE_RENDER_COND_WAIT              0
398 #define PIPE_RENDER_COND_NO_WAIT           1
399 #define PIPE_RENDER_COND_BY_REGION_WAIT    2
400 #define PIPE_RENDER_COND_BY_REGION_NO_WAIT 3
401 
402 
403 /**
404  * Point sprite coord modes
405  */
406 #define PIPE_SPRITE_COORD_UPPER_LEFT 0
407 #define PIPE_SPRITE_COORD_LOWER_LEFT 1
408 
409 
410 /**
411  * Texture swizzles
412  */
413 #define PIPE_SWIZZLE_RED   0
414 #define PIPE_SWIZZLE_GREEN 1
415 #define PIPE_SWIZZLE_BLUE  2
416 #define PIPE_SWIZZLE_ALPHA 3
417 #define PIPE_SWIZZLE_ZERO  4
418 #define PIPE_SWIZZLE_ONE   5
419 
420 
421 #define PIPE_TIMEOUT_INFINITE 0xffffffffffffffffull
422 
423 /**
424  * Implementation capabilities/limits which are queried through
425  * pipe_screen::get_param()
426  */
427 enum pipe_cap {
428    PIPE_CAP_NPOT_TEXTURES = 1,
429    PIPE_CAP_TWO_SIDED_STENCIL = 2,
430    PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS = 4,
431    PIPE_CAP_ANISOTROPIC_FILTER = 5,
432    PIPE_CAP_POINT_SPRITE = 6,
433    PIPE_CAP_MAX_RENDER_TARGETS = 7,
434    PIPE_CAP_OCCLUSION_QUERY = 8,
435    PIPE_CAP_TIMER_QUERY = 9,
436    PIPE_CAP_TEXTURE_SHADOW_MAP = 10,
437    PIPE_CAP_TEXTURE_SWIZZLE = 11,
438    PIPE_CAP_MAX_TEXTURE_2D_LEVELS = 12,
439    PIPE_CAP_MAX_TEXTURE_3D_LEVELS = 13,
440    PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS = 14,
441    PIPE_CAP_TEXTURE_MIRROR_CLAMP = 25,
442    PIPE_CAP_BLEND_EQUATION_SEPARATE = 28,
443    PIPE_CAP_SM3 = 29,  /*< Shader Model, supported */
444    PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS = 30,
445    PIPE_CAP_PRIMITIVE_RESTART = 31,
446    /** Maximum texture image units accessible from vertex and fragment shaders
447     * combined */
448    PIPE_CAP_MAX_COMBINED_SAMPLERS = 32,
449    /** blend enables and write masks per rendertarget */
450    PIPE_CAP_INDEP_BLEND_ENABLE = 33,
451    /** different blend funcs per rendertarget */
452    PIPE_CAP_INDEP_BLEND_FUNC = 34,
453    PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE = 35,
454    PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS = 36,
455    PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT = 37,
456    PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT = 38,
457    PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER = 39,
458    PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER = 40,
459    PIPE_CAP_DEPTH_CLIP_DISABLE = 41,
460    PIPE_CAP_SHADER_STENCIL_EXPORT = 42,
461    PIPE_CAP_TGSI_INSTANCEID = 43,
462    PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR = 44,
463    PIPE_CAP_FRAGMENT_COLOR_CLAMPED = 45,
464    PIPE_CAP_MIXED_COLORBUFFER_FORMATS = 46,
465    PIPE_CAP_SEAMLESS_CUBE_MAP = 47,
466    PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE = 48,
467    PIPE_CAP_SCALED_RESOLVE = 49,
468    PIPE_CAP_MIN_TEXEL_OFFSET = 50,
469    PIPE_CAP_MAX_TEXEL_OFFSET = 51,
470    PIPE_CAP_CONDITIONAL_RENDER = 52,
471    PIPE_CAP_TEXTURE_BARRIER = 53,
472    PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS = 55,
473    PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS = 56,
474    PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME = 57,
475    PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS = 58, /* temporary */
476    PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS = 59, /* temporary */
477    PIPE_CAP_VERTEX_COLOR_UNCLAMPED = 60,
478    PIPE_CAP_VERTEX_COLOR_CLAMPED = 61,
479    PIPE_CAP_GLSL_FEATURE_LEVEL = 62,
480    PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION = 63,
481    PIPE_CAP_USER_VERTEX_BUFFERS = 64,
482    PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY = 65,
483    PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY = 66,
484    PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY = 67,
485    PIPE_CAP_COMPUTE = 68,
486    PIPE_CAP_USER_INDEX_BUFFERS = 69,
487    PIPE_CAP_USER_CONSTANT_BUFFERS = 70,
488    PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT = 71,
489    PIPE_CAP_START_INSTANCE = 72,
490    PIPE_CAP_QUERY_TIMESTAMP = 73
491 };
492 
493 /**
494  * Implementation limits which are queried through
495  * pipe_screen::get_paramf()
496  */
497 enum pipe_capf
498 {
499    PIPE_CAPF_MAX_LINE_WIDTH = 15,
500    PIPE_CAPF_MAX_LINE_WIDTH_AA = 16,
501    PIPE_CAPF_MAX_POINT_WIDTH = 17,
502    PIPE_CAPF_MAX_POINT_WIDTH_AA = 18,
503    PIPE_CAPF_MAX_TEXTURE_ANISOTROPY = 19,
504    PIPE_CAPF_MAX_TEXTURE_LOD_BIAS = 20,
505    PIPE_CAPF_GUARD_BAND_LEFT = 21,
506    PIPE_CAPF_GUARD_BAND_TOP = 22,
507    PIPE_CAPF_GUARD_BAND_RIGHT = 23,
508    PIPE_CAPF_GUARD_BAND_BOTTOM = 24
509 };
510 
511 /* Shader caps not specific to any single stage */
512 enum pipe_shader_cap
513 {
514    PIPE_SHADER_CAP_MAX_INSTRUCTIONS = 0, /* if 0, it means the stage is unsupported */
515    PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS = 1,
516    PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS = 2,
517    PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS = 3,
518    PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH = 4,
519    PIPE_SHADER_CAP_MAX_INPUTS = 5,
520    PIPE_SHADER_CAP_MAX_CONSTS = 6,
521    PIPE_SHADER_CAP_MAX_CONST_BUFFERS = 7,
522    PIPE_SHADER_CAP_MAX_TEMPS = 8,
523    PIPE_SHADER_CAP_MAX_ADDRS = 9,
524    PIPE_SHADER_CAP_MAX_PREDS = 10,
525    /* boolean caps */
526    PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED = 11,
527    PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR = 12,
528    PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR = 13,
529    PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR = 14,
530    PIPE_SHADER_CAP_INDIRECT_CONST_ADDR = 15,
531    PIPE_SHADER_CAP_SUBROUTINES = 16, /* BGNSUB, ENDSUB, CAL, RET */
532    PIPE_SHADER_CAP_INTEGERS = 17,
533    PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS = 18,
534    PIPE_SHADER_CAP_PREFERRED_IR = 19
535 };
536 
537 /**
538  * Shader intermediate representation.
539  */
540 enum pipe_shader_ir
541 {
542    PIPE_SHADER_IR_TGSI,
543    PIPE_SHADER_IR_LLVM
544 };
545 
546 /**
547  * Compute-specific implementation capability.  They can be queried
548  * using pipe_screen::get_compute_param.
549  */
550 enum pipe_compute_cap
551 {
552    PIPE_COMPUTE_CAP_IR_TARGET,
553    PIPE_COMPUTE_CAP_GRID_DIMENSION,
554    PIPE_COMPUTE_CAP_MAX_GRID_SIZE,
555    PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE,
556    PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
557    PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE,
558    PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
559    PIPE_COMPUTE_CAP_MAX_PRIVATE_SIZE,
560    PIPE_COMPUTE_CAP_MAX_INPUT_SIZE
561 };
562 
563 /**
564  * Composite query types
565  */
566 
567 /**
568  * Query result for PIPE_QUERY_SO_STATISTICS.
569  */
570 struct pipe_query_data_so_statistics
571 {
572    uint64_t num_primitives_written;
573    uint64_t primitives_storage_needed;
574 };
575 
576 /**
577  * Query result for PIPE_QUERY_TIMESTAMP_DISJOINT.
578  */
579 struct pipe_query_data_timestamp_disjoint
580 {
581    uint64_t frequency;
582    boolean  disjoint;
583 };
584 
585 /**
586  * Query result for PIPE_QUERY_PIPELINE_STATISTICS.
587  */
588 struct pipe_query_data_pipeline_statistics
589 {
590    uint64_t ia_vertices;    /**< Num vertices read by the vertex fetcher. */
591    uint64_t ia_primitives;  /**< Num primitives read by the vertex fetcher. */
592    uint64_t vs_invocations; /**< Num vertex shader invocations. */
593    uint64_t gs_invocations; /**< Num geometry shader invocations. */
594    uint64_t gs_primitives;  /**< Num primitives output by a geometry shader. */
595    uint64_t c_invocations;  /**< Num primitives sent to the rasterizer. */
596    uint64_t c_primitives;   /**< Num primitives that were rendered. */
597    uint64_t ps_invocations; /**< Num pixel shader invocations. */
598    uint64_t hs_invocations; /**< Num hull shader invocations. */
599    uint64_t ds_invocations; /**< Num domain shader invocations. */
600    uint64_t cs_invocations; /**< Num compute shader invocations. */
601 };
602 
603 /**
604  * Query result (returned by pipe_context::get_query_result).
605  */
606 union pipe_query_result
607 {
608    /* PIPE_QUERY_OCCLUSION_PREDICATE */
609    /* PIPE_QUERY_SO_OVERFLOW_PREDICATE */
610    /* PIPE_QUERY_GPU_FINISHED */
611    boolean b;
612 
613    /* PIPE_QUERY_OCCLUSION_COUNTER */
614    /* PIPE_QUERY_TIMESTAMP */
615    /* PIPE_QUERY_TIME_ELAPSED */
616    /* PIPE_QUERY_PRIMITIVES_GENERATED */
617    /* PIPE_QUERY_PRIMITIVES_EMITTED */
618    uint64_t u64;
619 
620    /* PIPE_QUERY_SO_STATISTICS */
621    struct pipe_query_data_so_statistics so_statistics;
622 
623    /* PIPE_QUERY_TIMESTAMP_DISJOINT */
624    struct pipe_query_data_timestamp_disjoint timestamp_disjoint;
625 
626    /* PIPE_QUERY_PIPELINE_STATISTICS */
627    struct pipe_query_data_pipeline_statistics pipeline_statistics;
628 };
629 
630 union pipe_color_union
631 {
632    float f[4];
633    int i[4];
634    unsigned int ui[4];
635 };
636 
637 #ifdef __cplusplus
638 }
639 #endif
640 
641 #endif
642