src/gallium/include/pipe/p_defines.h

   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_format.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
 103
 104 /**
 105  * Inequality functions.  Used for depth test, stencil compare, alpha
 106  * test, shadow compare, etc.
 107  */
 108 #define PIPE_FUNC_NEVER    0
 109 #define PIPE_FUNC_LESS     1
 110 #define PIPE_FUNC_EQUAL    2
 111 #define PIPE_FUNC_LEQUAL   3
 112 #define PIPE_FUNC_GREATER  4
 113 #define PIPE_FUNC_NOTEQUAL 5
 114 #define PIPE_FUNC_GEQUAL   6
 115 #define PIPE_FUNC_ALWAYS   7
 116
 117 /** Polygon fill mode */
 118 #define PIPE_POLYGON_MODE_FILL  0
 119 #define PIPE_POLYGON_MODE_LINE  1
 120 #define PIPE_POLYGON_MODE_POINT 2
 121
 122 /** Polygon front/back window, also for culling */
 123 #define PIPE_WINDING_NONE 0
 124 #define PIPE_WINDING_CW   1
 125 #define PIPE_WINDING_CCW  2
 126 #define PIPE_WINDING_BOTH (PIPE_WINDING_CW | PIPE_WINDING_CCW)
 127
 128 /** Stencil ops */
 129 #define PIPE_STENCIL_OP_KEEP       0
 130 #define PIPE_STENCIL_OP_ZERO       1
 131 #define PIPE_STENCIL_OP_REPLACE    2
 132 #define PIPE_STENCIL_OP_INCR       3
 133 #define PIPE_STENCIL_OP_DECR       4
 134 #define PIPE_STENCIL_OP_INCR_WRAP  5
 135 #define PIPE_STENCIL_OP_DECR_WRAP  6
 136 #define PIPE_STENCIL_OP_INVERT     7
 137
 138 /** Texture types */
 139 enum pipe_texture_target {
 140    PIPE_BUFFER       = 0,
 141    PIPE_TEXTURE_1D   = 1,
 142    PIPE_TEXTURE_2D   = 2,
 143    PIPE_TEXTURE_3D   = 3,
 144    PIPE_TEXTURE_CUBE = 4,
 145    PIPE_MAX_TEXTURE_TYPES
 146 };
 147
 148 #define PIPE_TEX_FACE_POS_X 0
 149 #define PIPE_TEX_FACE_NEG_X 1
 150 #define PIPE_TEX_FACE_POS_Y 2
 151 #define PIPE_TEX_FACE_NEG_Y 3
 152 #define PIPE_TEX_FACE_POS_Z 4
 153 #define PIPE_TEX_FACE_NEG_Z 5
 154 #define PIPE_TEX_FACE_MAX   6
 155
 156 #define PIPE_TEX_WRAP_REPEAT                   0
 157 #define PIPE_TEX_WRAP_CLAMP                    1
 158 #define PIPE_TEX_WRAP_CLAMP_TO_EDGE            2
 159 #define PIPE_TEX_WRAP_CLAMP_TO_BORDER          3
 160 #define PIPE_TEX_WRAP_MIRROR_REPEAT            4
 161 #define PIPE_TEX_WRAP_MIRROR_CLAMP             5
 162 #define PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE     6
 163 #define PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER   7
 164
 165 /* Between mipmaps, ie mipfilter
 166  */
 167 #define PIPE_TEX_MIPFILTER_NEAREST  0
 168 #define PIPE_TEX_MIPFILTER_LINEAR   1
 169 #define PIPE_TEX_MIPFILTER_NONE     2
 170
 171 /* Within a mipmap, ie min/mag filter
 172  */
 173 #define PIPE_TEX_FILTER_NEAREST      0
 174 #define PIPE_TEX_FILTER_LINEAR       1
 175
 176 #define PIPE_TEX_COMPARE_NONE          0
 177 #define PIPE_TEX_COMPARE_R_TO_TEXTURE  1
 178
 179
 180 /**
 181  * Surface layout -- a hint?  Or some driver-internal poking out into
 182  * the interface?
 183  */
 184 #define PIPE_SURFACE_LAYOUT_LINEAR  0
 185
 186
 187 /**
 188  * Clear buffer bits
 189  */
 190 /** All color buffers currently bound */
 191 #define PIPE_CLEAR_COLOR        (1 << 0)
 192 /** Depth/stencil combined */
 193 #define PIPE_CLEAR_DEPTHSTENCIL (1 << 1)
 194
 195
 196 /**
 197  * Transfer object usage flags
 198  */
 199 enum pipe_transfer_usage {
 200    /**
 201     * Resource contents read back (or accessed directly) at transfer
 202     * create time.
 203     */
 204    PIPE_TRANSFER_READ = (1 << 0),
 205
 206    /**
 207     * Resource contents will be written back at transfer_destroy
 208     * time (or modified as a result of being accessed directly).
 209     */
 210    PIPE_TRANSFER_WRITE = (1 << 1),
 211
 212    /**
 213     * Read/modify/write
 214     */
 215    PIPE_TRANSFER_READ_WRITE = PIPE_TRANSFER_READ | PIPE_TRANSFER_WRITE,
 216
 217    /**
 218     * The transfer should map the texture storage directly. The driver may
 219     * return NULL if that isn't possible, and the state tracker needs to cope
 220     * with that and use an alternative path without this flag.
 221     *
 222     * E.g. the state tracker could have a simpler path which maps textures and
 223     * does read/modify/write cycles on them directly, and a more complicated
 224     * path which uses minimal read and write transfers.
 225     */
 226    PIPE_TRANSFER_MAP_DIRECTLY = (1 << 2),
 227
 228    /**
 229     * Discards the memory within the mapped region.
 230     *
 231     * It should not be used with PIPE_TRANSFER_CPU_READ.
 232     *
 233     * See also:
 234     * - OpenGL's ARB_map_buffer_range extension, MAP_INVALIDATE_RANGE_BIT flag.
 235     * - Direct3D's D3DLOCK_DISCARD flag.
 236     */
 237    PIPE_TRANSFER_DISCARD = (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_CPU_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    PIPE_TRANSFER_NOOVERWRITE = (1 << 10), /* are these really the same?? */
 261
 262    /**
 263     * Written ranges will be notified later with
 264     * pipe_context::transfer_flush_region.
 265     *
 266     * It should not be used with PIPE_TRANSFER_CPU_READ.
 267     *
 268     * See also:
 269     * - pipe_context::transfer_flush_region
 270     * - OpenGL's ARB_map_buffer_range extension, MAP_FLUSH_EXPLICIT_BIT flag.
 271     */
 272    PIPE_TRANSFER_FLUSH_EXPLICIT = (1 << 11)
 273
 274 };
 275
 276
 277 /*
 278  * Resource binding flags -- state tracker must specify in advance all
 279  * the ways a resource might be used.
 280  */
 281 #define PIPE_BIND_DEPTH_STENCIL        (1 << 0) /* get_tex_surface */
 282 #define PIPE_BIND_RENDER_TARGET        (1 << 1) /* get_tex_surface */
 283 #define PIPE_BIND_SAMPLER_VIEW         (1 << 2) /* get_sampler_view */
 284 #define PIPE_BIND_VERTEX_BUFFER        (1 << 3) /* set_vertex_buffers */
 285 #define PIPE_BIND_INDEX_BUFFER         (1 << 4) /* draw_elements */
 286 #define PIPE_BIND_CONSTANT_BUFFER      (1 << 5) /* set_constant_buffer */
 287 #define PIPE_BIND_BLIT_SOURCE          (1 << 6) /* surface_copy */
 288 #define PIPE_BIND_BLIT_DESTINATION     (1 << 7) /* surface_copy, fill */
 289 #define PIPE_BIND_DISPLAY_TARGET       (1 << 8) /* flush_front_buffer */
 290 #define PIPE_BIND_TRANSFER_WRITE       (1 << 9) /* get_transfer */
 291 #define PIPE_BIND_TRANSFER_READ        (1 << 10) /* get_transfer */
 292 #define PIPE_BIND_CUSTOM               (1 << 16) /* state-tracker/winsys usages */
 293
 294 /* The first two flags above were previously part of the amorphous
 295  * TEXTURE_USAGE, most of which are now descriptions of the ways a
 296  * particular texture can be bound to the gallium pipeline.  The two flags
 297  * below do not fit within that and probably need to be migrated to some
 298  * other place.
 299  *
 300  * It seems like scanout is used by the Xorg state tracker to ask for
 301  * a texture suitable for actual scanout (hence the name), which
 302  * implies extra layout constraints on some hardware.  It may also
 303  * have some special meaning regarding mouse cursor images.
 304  *
 305  * The shared flag is quite underspecified, but certainly isn't a
 306  * binding flag - it seems more like a message to the winsys to create
 307  * a shareable allocation.
 308  */
 309 #define PIPE_BIND_SCANOUT     (1 << 14) /*  */
 310 #define PIPE_BIND_SHARED      (1 << 15) /* get_texture_handle ??? */
 311
 312
 313 /* Flags for the driver about resource behaviour:
 314  */
 315 #define PIPE_RESOURCE_FLAG_GEN_MIPS    (1 << 0)  /* Driver performs autogen mips */
 316 #define PIPE_RESOURCE_FLAG_DRV_PRIV    (1 << 16) /* driver/winsys private */
 317 #define PIPE_RESOURCE_FLAG_ST_PRIV     (1 << 24) /* state-tracker/winsys private */
 318
 319 /* Hint about the expected lifecycle of a resource.
 320  */
 321 #define PIPE_USAGE_DEFAULT        0 /* many uploads, draws intermixed */
 322 #define PIPE_USAGE_DYNAMIC        1 /* many uploads, draws intermixed */
 323 #define PIPE_USAGE_STATIC         2 /* same as immutable?? */
 324 #define PIPE_USAGE_IMMUTABLE      3 /* no change after first upload */
 325 #define PIPE_USAGE_STREAM         4 /* upload, draw, upload, draw */
 326
 327
 328 /* These are intended to be used in calls to is_format_supported, but
 329  * no driver actually uses these flags, and only the glx/xlib state
 330  * tracker issues them.
 331  *
 332  * Deprecate?
 333  */
 334 #define PIPE_TEXTURE_GEOM_NON_SQUARE       0x1
 335 #define PIPE_TEXTURE_GEOM_NON_POWER_OF_TWO 0x2
 336
 337
 338 /**
 339  * Flush types:
 340  */
 341 #define PIPE_FLUSH_RENDER_CACHE   0x1
 342 #define PIPE_FLUSH_TEXTURE_CACHE  0x2
 343 #define PIPE_FLUSH_SWAPBUFFERS    0x4
 344 #define PIPE_FLUSH_FRAME          0x8 /**< Mark the end of a frame */
 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_TYPES    3
 354
 355
 356 /**
 357  * Primitive types:
 358  */
 359 #define PIPE_PRIM_POINTS               0
 360 #define PIPE_PRIM_LINES                1
 361 #define PIPE_PRIM_LINE_LOOP            2
 362 #define PIPE_PRIM_LINE_STRIP           3
 363 #define PIPE_PRIM_TRIANGLES            4
 364 #define PIPE_PRIM_TRIANGLE_STRIP       5
 365 #define PIPE_PRIM_TRIANGLE_FAN         6
 366 #define PIPE_PRIM_QUADS                7
 367 #define PIPE_PRIM_QUAD_STRIP           8
 368 #define PIPE_PRIM_POLYGON              9
 369 #define PIPE_PRIM_LINES_ADJACENCY          10
 370 #define PIPE_PRIM_LINE_STRIP_ADJACENCY    11
 371 #define PIPE_PRIM_TRIANGLES_ADJACENCY      12
 372 #define PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY 13
 373 #define PIPE_PRIM_MAX                      14
 374
 375
 376 /**
 377  * Query object types
 378  */
 379 #define PIPE_QUERY_OCCLUSION_COUNTER     0
 380 #define PIPE_QUERY_PRIMITIVES_GENERATED  1
 381 #define PIPE_QUERY_PRIMITIVES_EMITTED    2
 382 #define PIPE_QUERY_TYPES                 3
 383
 384
 385 /**
 386  * Conditional rendering modes
 387  */
 388 #define PIPE_RENDER_COND_WAIT              0
 389 #define PIPE_RENDER_COND_NO_WAIT           1
 390 #define PIPE_RENDER_COND_BY_REGION_WAIT    2
 391 #define PIPE_RENDER_COND_BY_REGION_NO_WAIT 3
 392
 393
 394 /**
 395  * Point sprite coord modes
 396  */
 397 #define PIPE_SPRITE_COORD_UPPER_LEFT 0
 398 #define PIPE_SPRITE_COORD_LOWER_LEFT 1
 399
 400
 401 /**
 402  * Texture swizzles
 403  */
 404 #define PIPE_SWIZZLE_RED   0
 405 #define PIPE_SWIZZLE_GREEN 1
 406 #define PIPE_SWIZZLE_BLUE  2
 407 #define PIPE_SWIZZLE_ALPHA 3
 408 #define PIPE_SWIZZLE_ZERO  4
 409 #define PIPE_SWIZZLE_ONE   5
 410
 411
 412 /**
 413  * Implementation capabilities/limits which are queried through
 414  * pipe_screen::get_param() and pipe_screen::get_paramf().
 415  */
 416 #define PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS 1
 417 #define PIPE_CAP_NPOT_TEXTURES           2
 418 #define PIPE_CAP_TWO_SIDED_STENCIL       3
 419 #define PIPE_CAP_GLSL                    4  /* XXX need something better */
 420 #define PIPE_CAP_DUAL_SOURCE_BLEND       5
 421 #define PIPE_CAP_ANISOTROPIC_FILTER      6
 422 #define PIPE_CAP_POINT_SPRITE            7
 423 #define PIPE_CAP_MAX_RENDER_TARGETS      8
 424 #define PIPE_CAP_OCCLUSION_QUERY         9
 425 #define PIPE_CAP_TEXTURE_SHADOW_MAP      10
 426 #define PIPE_CAP_MAX_TEXTURE_2D_LEVELS   11
 427 #define PIPE_CAP_MAX_TEXTURE_3D_LEVELS   12
 428 #define PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS 13
 429 #define PIPE_CAP_MAX_LINE_WIDTH          14
 430 #define PIPE_CAP_MAX_LINE_WIDTH_AA       15
 431 #define PIPE_CAP_MAX_POINT_WIDTH         16
 432 #define PIPE_CAP_MAX_POINT_WIDTH_AA      17
 433 #define PIPE_CAP_MAX_TEXTURE_ANISOTROPY  18
 434 #define PIPE_CAP_MAX_TEXTURE_LOD_BIAS    19
 435 #define PIPE_CAP_GUARD_BAND_LEFT         20  /*< float */
 436 #define PIPE_CAP_GUARD_BAND_TOP          21  /*< float */
 437 #define PIPE_CAP_GUARD_BAND_RIGHT        22  /*< float */
 438 #define PIPE_CAP_GUARD_BAND_BOTTOM       23  /*< float */
 439 #define PIPE_CAP_TEXTURE_MIRROR_CLAMP    24
 440 #define PIPE_CAP_TEXTURE_MIRROR_REPEAT   25
 441 #define PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS 26
 442 #define PIPE_CAP_TGSI_CONT_SUPPORTED     27
 443 #define PIPE_CAP_BLEND_EQUATION_SEPARATE 28
 444 #define PIPE_CAP_SM3                     29  /*< Shader Model 3 supported */
 445 #define PIPE_CAP_MAX_PREDICATE_REGISTERS 30
 446 #define PIPE_CAP_MAX_COMBINED_SAMPLERS   31  /*< Maximum texture image units accessible from vertex
 447                                                  and fragment shaders combined */
 448 #define PIPE_CAP_MAX_CONST_BUFFERS       32
 449 #define PIPE_CAP_MAX_CONST_BUFFER_SIZE   33  /*< In bytes */
 450 #define PIPE_CAP_INDEP_BLEND_ENABLE      34  /*< blend enables and write masks per rendertarget */
 451 #define PIPE_CAP_INDEP_BLEND_FUNC        35  /*< different blend funcs per rendertarget */
 452 #define PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT 36
 453 #define PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT 37
 454 #define PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER 38
 455 #define PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER 39
 456
 457
 458 /**
 459  * Referenced query flags.
 460  */
 461
 462 #define PIPE_UNREFERENCED         0
 463 #define PIPE_REFERENCED_FOR_READ  (1 << 0)
 464 #define PIPE_REFERENCED_FOR_WRITE (1 << 1)
 465
 466
 467 #ifdef __cplusplus
 468 }
 469 #endif
 470
 471 #endif