src/gallium/include/pipe/p_defines.h

   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
 333 /*
 334  * Resource binding flags -- state tracker must specify in advance all
 335  * the ways a resource might be used.
 336  */
 337 #define PIPE_BIND_DEPTH_STENCIL        (1 << 0) /* create_surface */
 338 #define PIPE_BIND_RENDER_TARGET        (1 << 1) /* create_surface */
 339 #define PIPE_BIND_BLENDABLE            (1 << 2) /* create_surface */
 340 #define PIPE_BIND_SAMPLER_VIEW         (1 << 3) /* create_sampler_view */
 341 #define PIPE_BIND_VERTEX_BUFFER        (1 << 4) /* set_vertex_buffers */
 342 #define PIPE_BIND_INDEX_BUFFER         (1 << 5) /* draw_elements */
 343 #define PIPE_BIND_CONSTANT_BUFFER      (1 << 6) /* set_constant_buffer */
 344 #define PIPE_BIND_DISPLAY_TARGET       (1 << 8) /* flush_front_buffer */
 345 #define PIPE_BIND_TRANSFER_WRITE       (1 << 9) /* transfer_map */
 346 #define PIPE_BIND_TRANSFER_READ        (1 << 10) /* transfer_map */
 347 #define PIPE_BIND_STREAM_OUTPUT        (1 << 11) /* set_stream_output_buffers */
 348 #define PIPE_BIND_CURSOR               (1 << 16) /* mouse cursor */
 349 #define PIPE_BIND_CUSTOM               (1 << 17) /* state-tracker/winsys usages */
 350 #define PIPE_BIND_GLOBAL               (1 << 18) /* set_global_binding */
 351 #define PIPE_BIND_SHADER_RESOURCE      (1 << 19) /* set_shader_resources */
 352 #define PIPE_BIND_COMPUTE_RESOURCE     (1 << 20) /* set_compute_resources */
 353 #define PIPE_BIND_COMMAND_ARGS_BUFFER  (1 << 21) /* pipe_draw_info.indirect */
 354
 355 /* The first two flags above were previously part of the amorphous
 356  * TEXTURE_USAGE, most of which are now descriptions of the ways a
 357  * particular texture can be bound to the gallium pipeline.  The two flags
 358  * below do not fit within that and probably need to be migrated to some
 359  * other place.
 360  *
 361  * It seems like scanout is used by the Xorg state tracker to ask for
 362  * a texture suitable for actual scanout (hence the name), which
 363  * implies extra layout constraints on some hardware.  It may also
 364  * have some special meaning regarding mouse cursor images.
 365  *
 366  * The shared flag is quite underspecified, but certainly isn't a
 367  * binding flag - it seems more like a message to the winsys to create
 368  * a shareable allocation.
 369  *
 370  * The third flag has been added to be able to force textures to be created
 371  * in linear mode (no tiling).
 372  */
 373 #define PIPE_BIND_SCANOUT     (1 << 14) /*  */
 374 #define PIPE_BIND_SHARED      (1 << 15) /* get_texture_handle ??? */
 375 #define PIPE_BIND_LINEAR      (1 << 21)
 376
 377
 378 /* Flags for the driver about resource behaviour:
 379  */
 380 #define PIPE_RESOURCE_FLAG_MAP_PERSISTENT (1 << 0)
 381 #define PIPE_RESOURCE_FLAG_MAP_COHERENT   (1 << 1)
 382 #define PIPE_RESOURCE_FLAG_DRV_PRIV    (1 << 16) /* driver/winsys private */
 383 #define PIPE_RESOURCE_FLAG_ST_PRIV     (1 << 24) /* state-tracker/winsys private */
 384
 385 /* Hint about the expected lifecycle of a resource.
 386  * Sorted according to GPU vs CPU access.
 387  */
 388 #define PIPE_USAGE_DEFAULT        0 /* fast GPU access */
 389 #define PIPE_USAGE_IMMUTABLE      1 /* fast GPU access, immutable */
 390 #define PIPE_USAGE_DYNAMIC        2 /* uploaded data is used multiple times */
 391 #define PIPE_USAGE_STREAM         3 /* uploaded data is used once */
 392 #define PIPE_USAGE_STAGING        4 /* fast CPU access */
 393
 394
 395 /**
 396  * Shaders
 397  */
 398 #define PIPE_SHADER_VERTEX   0
 399 #define PIPE_SHADER_FRAGMENT 1
 400 #define PIPE_SHADER_GEOMETRY 2
 401 #define PIPE_SHADER_COMPUTE  3
 402 #define PIPE_SHADER_TYPES    4
 403
 404
 405 /**
 406  * Primitive types:
 407  */
 408 #define PIPE_PRIM_POINTS               0
 409 #define PIPE_PRIM_LINES                1
 410 #define PIPE_PRIM_LINE_LOOP            2
 411 #define PIPE_PRIM_LINE_STRIP           3
 412 #define PIPE_PRIM_TRIANGLES            4
 413 #define PIPE_PRIM_TRIANGLE_STRIP       5
 414 #define PIPE_PRIM_TRIANGLE_FAN         6
 415 #define PIPE_PRIM_QUADS                7
 416 #define PIPE_PRIM_QUAD_STRIP           8
 417 #define PIPE_PRIM_POLYGON              9
 418 #define PIPE_PRIM_LINES_ADJACENCY          10
 419 #define PIPE_PRIM_LINE_STRIP_ADJACENCY    11
 420 #define PIPE_PRIM_TRIANGLES_ADJACENCY      12
 421 #define PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY 13
 422 #define PIPE_PRIM_MAX                      14
 423
 424
 425 /**
 426  * Query object types
 427  */
 428 #define PIPE_QUERY_OCCLUSION_COUNTER     0
 429 #define PIPE_QUERY_OCCLUSION_PREDICATE   1
 430 #define PIPE_QUERY_TIMESTAMP             2
 431 #define PIPE_QUERY_TIMESTAMP_DISJOINT    3
 432 #define PIPE_QUERY_TIME_ELAPSED          4
 433 #define PIPE_QUERY_PRIMITIVES_GENERATED  5
 434 #define PIPE_QUERY_PRIMITIVES_EMITTED    6
 435 #define PIPE_QUERY_SO_STATISTICS         7
 436 #define PIPE_QUERY_SO_OVERFLOW_PREDICATE 8
 437 #define PIPE_QUERY_GPU_FINISHED          9
 438 #define PIPE_QUERY_PIPELINE_STATISTICS  10
 439 #define PIPE_QUERY_TYPES                11
 440
 441 /* start of driver queries,
 442  * see pipe_screen::get_driver_query_info */
 443 #define PIPE_QUERY_DRIVER_SPECIFIC     256
 444
 445
 446 /**
 447  * Conditional rendering modes
 448  */
 449 #define PIPE_RENDER_COND_WAIT              0
 450 #define PIPE_RENDER_COND_NO_WAIT           1
 451 #define PIPE_RENDER_COND_BY_REGION_WAIT    2
 452 #define PIPE_RENDER_COND_BY_REGION_NO_WAIT 3
 453
 454
 455 /**
 456  * Point sprite coord modes
 457  */
 458 #define PIPE_SPRITE_COORD_UPPER_LEFT 0
 459 #define PIPE_SPRITE_COORD_LOWER_LEFT 1
 460
 461
 462 /**
 463  * Texture swizzles
 464  */
 465 #define PIPE_SWIZZLE_RED   0
 466 #define PIPE_SWIZZLE_GREEN 1
 467 #define PIPE_SWIZZLE_BLUE  2
 468 #define PIPE_SWIZZLE_ALPHA 3
 469 #define PIPE_SWIZZLE_ZERO  4
 470 #define PIPE_SWIZZLE_ONE   5
 471
 472
 473 #define PIPE_TIMEOUT_INFINITE 0xffffffffffffffffull
 474
 475 /**
 476  * Implementation capabilities/limits which are queried through
 477  * pipe_screen::get_param()
 478  */
 479 enum pipe_cap {
 480    PIPE_CAP_NPOT_TEXTURES = 1,
 481    PIPE_CAP_TWO_SIDED_STENCIL = 2,
 482    PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS = 4,
 483    PIPE_CAP_ANISOTROPIC_FILTER = 5,
 484    PIPE_CAP_POINT_SPRITE = 6,
 485    PIPE_CAP_MAX_RENDER_TARGETS = 7,
 486    PIPE_CAP_OCCLUSION_QUERY = 8,
 487    PIPE_CAP_QUERY_TIME_ELAPSED = 9,
 488    PIPE_CAP_TEXTURE_SHADOW_MAP = 10,
 489    PIPE_CAP_TEXTURE_SWIZZLE = 11,
 490    PIPE_CAP_MAX_TEXTURE_2D_LEVELS = 12,
 491    PIPE_CAP_MAX_TEXTURE_3D_LEVELS = 13,
 492    PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS = 14,
 493    PIPE_CAP_TEXTURE_MIRROR_CLAMP = 25,
 494    PIPE_CAP_BLEND_EQUATION_SEPARATE = 28,
 495    PIPE_CAP_SM3 = 29,  /*< Shader Model, supported */
 496    PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS = 30,
 497    PIPE_CAP_PRIMITIVE_RESTART = 31,
 498    /** blend enables and write masks per rendertarget */
 499    PIPE_CAP_INDEP_BLEND_ENABLE = 33,
 500    /** different blend funcs per rendertarget */
 501    PIPE_CAP_INDEP_BLEND_FUNC = 34,
 502    PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS = 36,
 503    PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT = 37,
 504    PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT = 38,
 505    PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER = 39,
 506    PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER = 40,
 507    PIPE_CAP_DEPTH_CLIP_DISABLE = 41,
 508    PIPE_CAP_SHADER_STENCIL_EXPORT = 42,
 509    PIPE_CAP_TGSI_INSTANCEID = 43,
 510    PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR = 44,
 511    PIPE_CAP_FRAGMENT_COLOR_CLAMPED = 45,
 512    PIPE_CAP_MIXED_COLORBUFFER_FORMATS = 46,
 513    PIPE_CAP_SEAMLESS_CUBE_MAP = 47,
 514    PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE = 48,
 515    PIPE_CAP_MIN_TEXEL_OFFSET = 50,
 516    PIPE_CAP_MAX_TEXEL_OFFSET = 51,
 517    PIPE_CAP_CONDITIONAL_RENDER = 52,
 518    PIPE_CAP_TEXTURE_BARRIER = 53,
 519    PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS = 55,
 520    PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS = 56,
 521    PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME = 57,
 522    PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS = 59, /* temporary */
 523    PIPE_CAP_VERTEX_COLOR_UNCLAMPED = 60,
 524    PIPE_CAP_VERTEX_COLOR_CLAMPED = 61,
 525    PIPE_CAP_GLSL_FEATURE_LEVEL = 62,
 526    PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION = 63,
 527    PIPE_CAP_USER_VERTEX_BUFFERS = 64,
 528    PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY = 65,
 529    PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY = 66,
 530    PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY = 67,
 531    PIPE_CAP_COMPUTE = 68,
 532    PIPE_CAP_USER_INDEX_BUFFERS = 69,
 533    PIPE_CAP_USER_CONSTANT_BUFFERS = 70,
 534    PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT = 71,
 535    PIPE_CAP_START_INSTANCE = 72,
 536    PIPE_CAP_QUERY_TIMESTAMP = 73,
 537    PIPE_CAP_TEXTURE_MULTISAMPLE = 74,
 538    PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT = 75,
 539    PIPE_CAP_CUBE_MAP_ARRAY = 76,
 540    PIPE_CAP_TEXTURE_BUFFER_OBJECTS = 77,
 541    PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT = 78,
 542    PIPE_CAP_TGSI_TEXCOORD = 79,
 543    PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER = 80,
 544    PIPE_CAP_QUERY_PIPELINE_STATISTICS = 81,
 545    PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK = 82,
 546    PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE = 83,
 547    PIPE_CAP_MAX_VIEWPORTS = 84,
 548    PIPE_CAP_ENDIANNESS = 85,
 549    PIPE_CAP_MIXED_FRAMEBUFFER_SIZES = 86,
 550    PIPE_CAP_TGSI_VS_LAYER_VIEWPORT = 87,
 551    PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES = 88,
 552    PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS = 89,
 553    PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS = 90,
 554    PIPE_CAP_TEXTURE_GATHER_SM5 = 91,
 555    PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT = 92,
 556    PIPE_CAP_FAKE_SW_MSAA = 93,
 557    PIPE_CAP_TEXTURE_QUERY_LOD = 94,
 558    PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET = 95,
 559    PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET = 96,
 560    PIPE_CAP_SAMPLE_SHADING = 97,
 561    PIPE_CAP_TEXTURE_GATHER_OFFSETS = 98,
 562    PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION = 99,
 563    PIPE_CAP_MAX_VERTEX_STREAMS = 100,
 564    PIPE_CAP_DRAW_INDIRECT = 101,
 565    PIPE_CAP_TGSI_FS_FINE_DERIVATIVE = 102,
 566    PIPE_CAP_VENDOR_ID = 103,
 567    PIPE_CAP_DEVICE_ID = 104,
 568    PIPE_CAP_ACCELERATED = 105,
 569    PIPE_CAP_VIDEO_MEMORY = 106,
 570    PIPE_CAP_UMA = 107,
 571    PIPE_CAP_CONDITIONAL_RENDER_INVERTED = 108,
 572    PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE = 109,
 573    PIPE_CAP_SAMPLER_VIEW_TARGET = 110,
 574    PIPE_CAP_CLIP_HALFZ = 111,
 575    PIPE_CAP_VERTEXID_NOBASE = 112,
 576    PIPE_CAP_POLYGON_OFFSET_CLAMP = 113,
 577    PIPE_CAP_MULTISAMPLE_Z_RESOLVE = 114,
 578    PIPE_CAP_RESOURCE_FROM_USER_MEMORY = 115,
 579 };
 580
 581 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)
 582 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600 (1 << 1)
 583
 584 enum pipe_endian {
 585    PIPE_ENDIAN_LITTLE = 0,
 586    PIPE_ENDIAN_BIG = 1,
 587 #if defined(PIPE_ARCH_LITTLE_ENDIAN)
 588    PIPE_ENDIAN_NATIVE = PIPE_ENDIAN_LITTLE
 589 #elif defined(PIPE_ARCH_BIG_ENDIAN)
 590    PIPE_ENDIAN_NATIVE = PIPE_ENDIAN_BIG
 591 #endif
 592 };
 593
 594 /**
 595  * Implementation limits which are queried through
 596  * pipe_screen::get_paramf()
 597  */
 598 enum pipe_capf
 599 {
 600    PIPE_CAPF_MAX_LINE_WIDTH,
 601    PIPE_CAPF_MAX_LINE_WIDTH_AA,
 602    PIPE_CAPF_MAX_POINT_WIDTH,
 603    PIPE_CAPF_MAX_POINT_WIDTH_AA,
 604    PIPE_CAPF_MAX_TEXTURE_ANISOTROPY,
 605    PIPE_CAPF_MAX_TEXTURE_LOD_BIAS,
 606    PIPE_CAPF_GUARD_BAND_LEFT,
 607    PIPE_CAPF_GUARD_BAND_TOP,
 608    PIPE_CAPF_GUARD_BAND_RIGHT,
 609    PIPE_CAPF_GUARD_BAND_BOTTOM
 610 };
 611
 612 /* Shader caps not specific to any single stage */
 613 enum pipe_shader_cap
 614 {
 615    PIPE_SHADER_CAP_MAX_INSTRUCTIONS, /* if 0, it means the stage is unsupported */
 616    PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS,
 617    PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS,
 618    PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS,
 619    PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH,
 620    PIPE_SHADER_CAP_MAX_INPUTS,
 621    PIPE_SHADER_CAP_MAX_OUTPUTS,
 622    PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE,
 623    PIPE_SHADER_CAP_MAX_CONST_BUFFERS,
 624    PIPE_SHADER_CAP_MAX_TEMPS,
 625    PIPE_SHADER_CAP_MAX_PREDS,
 626    /* boolean caps */
 627    PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED,
 628    PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR,
 629    PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR,
 630    PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR,
 631    PIPE_SHADER_CAP_INDIRECT_CONST_ADDR,
 632    PIPE_SHADER_CAP_SUBROUTINES, /* BGNSUB, ENDSUB, CAL, RET */
 633    PIPE_SHADER_CAP_INTEGERS,
 634    PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS,
 635    PIPE_SHADER_CAP_PREFERRED_IR,
 636    PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED,
 637    PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS,
 638    PIPE_SHADER_CAP_DOUBLES
 639 };
 640
 641 /**
 642  * Shader intermediate representation.
 643  */
 644 enum pipe_shader_ir
 645 {
 646    PIPE_SHADER_IR_TGSI,
 647    PIPE_SHADER_IR_LLVM,
 648    PIPE_SHADER_IR_NATIVE
 649 };
 650
 651 /**
 652  * Compute-specific implementation capability.  They can be queried
 653  * using pipe_screen::get_compute_param.
 654  */
 655 enum pipe_compute_cap
 656 {
 657    PIPE_COMPUTE_CAP_IR_TARGET,
 658    PIPE_COMPUTE_CAP_GRID_DIMENSION,
 659    PIPE_COMPUTE_CAP_MAX_GRID_SIZE,
 660    PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE,
 661    PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
 662    PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE,
 663    PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
 664    PIPE_COMPUTE_CAP_MAX_PRIVATE_SIZE,
 665    PIPE_COMPUTE_CAP_MAX_INPUT_SIZE,
 666    PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE,
 667    PIPE_COMPUTE_CAP_MAX_CLOCK_FREQUENCY,
 668    PIPE_COMPUTE_CAP_MAX_COMPUTE_UNITS,
 669    PIPE_COMPUTE_CAP_IMAGES_SUPPORTED
 670 };
 671
 672 /**
 673  * Composite query types
 674  */
 675
 676 /**
 677  * Query result for PIPE_QUERY_SO_STATISTICS.
 678  */
 679 struct pipe_query_data_so_statistics
 680 {
 681    uint64_t num_primitives_written;
 682    uint64_t primitives_storage_needed;
 683 };
 684
 685 /**
 686  * Query result for PIPE_QUERY_TIMESTAMP_DISJOINT.
 687  */
 688 struct pipe_query_data_timestamp_disjoint
 689 {
 690    uint64_t frequency;
 691    boolean  disjoint;
 692 };
 693
 694 /**
 695  * Query result for PIPE_QUERY_PIPELINE_STATISTICS.
 696  */
 697 struct pipe_query_data_pipeline_statistics
 698 {
 699    uint64_t ia_vertices;    /**< Num vertices read by the vertex fetcher. */
 700    uint64_t ia_primitives;  /**< Num primitives read by the vertex fetcher. */
 701    uint64_t vs_invocations; /**< Num vertex shader invocations. */
 702    uint64_t gs_invocations; /**< Num geometry shader invocations. */
 703    uint64_t gs_primitives;  /**< Num primitives output by a geometry shader. */
 704    uint64_t c_invocations;  /**< Num primitives sent to the rasterizer. */
 705    uint64_t c_primitives;   /**< Num primitives that were rendered. */
 706    uint64_t ps_invocations; /**< Num pixel shader invocations. */
 707    uint64_t hs_invocations; /**< Num hull shader invocations. */
 708    uint64_t ds_invocations; /**< Num domain shader invocations. */
 709    uint64_t cs_invocations; /**< Num compute shader invocations. */
 710 };
 711
 712 /**
 713  * Query result (returned by pipe_context::get_query_result).
 714  */
 715 union pipe_query_result
 716 {
 717    /* PIPE_QUERY_OCCLUSION_PREDICATE */
 718    /* PIPE_QUERY_SO_OVERFLOW_PREDICATE */
 719    /* PIPE_QUERY_GPU_FINISHED */
 720    boolean b;
 721
 722    /* PIPE_QUERY_OCCLUSION_COUNTER */
 723    /* PIPE_QUERY_TIMESTAMP */
 724    /* PIPE_QUERY_TIME_ELAPSED */
 725    /* PIPE_QUERY_PRIMITIVES_GENERATED */
 726    /* PIPE_QUERY_PRIMITIVES_EMITTED */
 727    uint64_t u64;
 728
 729    /* PIPE_QUERY_SO_STATISTICS */
 730    struct pipe_query_data_so_statistics so_statistics;
 731
 732    /* PIPE_QUERY_TIMESTAMP_DISJOINT */
 733    struct pipe_query_data_timestamp_disjoint timestamp_disjoint;
 734
 735    /* PIPE_QUERY_PIPELINE_STATISTICS */
 736    struct pipe_query_data_pipeline_statistics pipeline_statistics;
 737 };
 738
 739 union pipe_color_union
 740 {
 741    float f[4];
 742    int i[4];
 743    unsigned int ui[4];
 744 };
 745
 746 struct pipe_driver_query_info
 747 {
 748    const char *name;
 749    unsigned query_type; /* PIPE_QUERY_DRIVER_SPECIFIC + i */
 750    uint64_t max_value; /* max value that can be returned */
 751    boolean uses_byte_units; /* whether the result is in bytes */
 752 };
 753
 754 #ifdef __cplusplus
 755 }
 756 #endif
 757
 758 #endif