src/mesa/main/marshal.h

   1 /*
   2  * Copyright © 2012 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 /** \file marshal.h
  25  *
  26  * Declarations of functions related to marshalling GL calls from a client
  27  * thread to a server thread.
  28  */
  29
  30 #ifndef MARSHAL_H
  31 #define MARSHAL_H
  32
  33 #include "main/glthread.h"
  34 #include "main/context.h"
  35 #include "main/macros.h"
  36 #include "marshal_generated.h"
  37
  38 struct marshal_cmd_base
  39 {
  40    /**
  41     * Type of command.  See enum marshal_dispatch_cmd_id.
  42     */
  43    uint16_t cmd_id;
  44
  45    /**
  46     * Size of command, in multiples of 4 bytes, including cmd_base.
  47     */
  48    uint16_t cmd_size;
  49 };
  50
  51 typedef void (*_mesa_unmarshal_func)(struct gl_context *ctx, const void *cmd);
  52 extern const _mesa_unmarshal_func _mesa_unmarshal_dispatch[NUM_DISPATCH_CMD];
  53
  54 static inline void *
  55 _mesa_glthread_allocate_command(struct gl_context *ctx,
  56                                 uint16_t cmd_id,
  57                                 int size)
  58 {
  59    struct glthread_state *glthread = ctx->GLThread;
  60    struct glthread_batch *next = &glthread->batches[glthread->next];
  61    struct marshal_cmd_base *cmd_base;
  62    const int aligned_size = ALIGN(size, 8);
  63
  64    if (unlikely(next->used + size > MARSHAL_MAX_CMD_SIZE)) {
  65       _mesa_glthread_flush_batch(ctx);
  66       next = &glthread->batches[glthread->next];
  67    }
  68
  69    cmd_base = (struct marshal_cmd_base *)&next->buffer[next->used];
  70    next->used += aligned_size;
  71    cmd_base->cmd_id = cmd_id;
  72    cmd_base->cmd_size = aligned_size;
  73    return cmd_base;
  74 }
  75
  76 /**
  77  * Instead of conditionally handling marshaling immediate index data in draw
  78  * calls (deprecated and removed in GL core), we just disable threading.
  79  */
  80 static inline bool
  81 _mesa_glthread_is_non_vbo_draw_elements(const struct gl_context *ctx)
  82 {
  83    struct glthread_state *glthread = ctx->GLThread;
  84
  85    return ctx->API != API_OPENGL_CORE &&
  86           (glthread->CurrentVAO->IndexBufferIsUserPointer ||
  87            glthread->CurrentVAO->HasUserPointer);
  88 }
  89
  90 static inline bool
  91 _mesa_glthread_is_non_vbo_draw_arrays(const struct gl_context *ctx)
  92 {
  93    struct glthread_state *glthread = ctx->GLThread;
  94
  95    return ctx->API != API_OPENGL_CORE && glthread->CurrentVAO->HasUserPointer;
  96 }
  97
  98 static inline bool
  99 _mesa_glthread_is_non_vbo_draw_arrays_indirect(const struct gl_context *ctx)
 100 {
 101    struct glthread_state *glthread = ctx->GLThread;
 102
 103    return ctx->API != API_OPENGL_CORE &&
 104           (!glthread->draw_indirect_buffer_is_vbo ||
 105            glthread->CurrentVAO->HasUserPointer );
 106 }
 107
 108 static inline bool
 109 _mesa_glthread_is_non_vbo_draw_elements_indirect(const struct gl_context *ctx)
 110 {
 111    struct glthread_state *glthread = ctx->GLThread;
 112
 113    return ctx->API != API_OPENGL_CORE &&
 114           (!glthread->draw_indirect_buffer_is_vbo ||
 115            glthread->CurrentVAO->IndexBufferIsUserPointer ||
 116            glthread->CurrentVAO->HasUserPointer);
 117 }
 118
 119
 120 struct _glapi_table *
 121 _mesa_create_marshal_table(const struct gl_context *ctx);
 122
 123 void
 124 _mesa_glthread_BindBuffer(struct gl_context *ctx, GLenum target, GLuint buffer);
 125
 126 static inline unsigned
 127 _mesa_buffer_enum_to_count(GLenum buffer)
 128 {
 129    switch (buffer) {
 130    case GL_COLOR:
 131       return 4;
 132    case GL_DEPTH_STENCIL:
 133       return 2;
 134    case GL_STENCIL:
 135    case GL_DEPTH:
 136       return 1;
 137    default:
 138       return 0;
 139    }
 140 }
 141
 142 static inline unsigned
 143 _mesa_tex_param_enum_to_count(GLenum pname)
 144 {
 145    switch (pname) {
 146    case GL_TEXTURE_MIN_FILTER:
 147    case GL_TEXTURE_MAG_FILTER:
 148    case GL_TEXTURE_WRAP_S:
 149    case GL_TEXTURE_WRAP_T:
 150    case GL_TEXTURE_WRAP_R:
 151    case GL_TEXTURE_BASE_LEVEL:
 152    case GL_TEXTURE_MAX_LEVEL:
 153    case GL_GENERATE_MIPMAP_SGIS:
 154    case GL_TEXTURE_COMPARE_MODE_ARB:
 155    case GL_TEXTURE_COMPARE_FUNC_ARB:
 156    case GL_DEPTH_TEXTURE_MODE_ARB:
 157    case GL_DEPTH_STENCIL_TEXTURE_MODE:
 158    case GL_TEXTURE_SRGB_DECODE_EXT:
 159    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 160    case GL_TEXTURE_SWIZZLE_R:
 161    case GL_TEXTURE_SWIZZLE_G:
 162    case GL_TEXTURE_SWIZZLE_B:
 163    case GL_TEXTURE_SWIZZLE_A:
 164    case GL_TEXTURE_MIN_LOD:
 165    case GL_TEXTURE_MAX_LOD:
 166    case GL_TEXTURE_PRIORITY:
 167    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 168    case GL_TEXTURE_LOD_BIAS:
 169    case GL_TEXTURE_TILING_EXT:
 170       return 1;
 171    case GL_TEXTURE_CROP_RECT_OES:
 172    case GL_TEXTURE_SWIZZLE_RGBA:
 173    case GL_TEXTURE_BORDER_COLOR:
 174       return 4;
 175    default:
 176       return 0;
 177    }
 178 }
 179
 180 static inline unsigned
 181 _mesa_fog_enum_to_count(GLenum pname)
 182 {
 183    switch (pname) {
 184    case GL_FOG_MODE:
 185    case GL_FOG_DENSITY:
 186    case GL_FOG_START:
 187    case GL_FOG_END:
 188    case GL_FOG_INDEX:
 189    case GL_FOG_COORDINATE_SOURCE_EXT:
 190    case GL_FOG_DISTANCE_MODE_NV:
 191       return 1;
 192    case GL_FOG_COLOR:
 193       return 4;
 194    default:
 195       return 0;
 196    }
 197 }
 198
 199 static inline unsigned
 200 _mesa_light_enum_to_count(GLenum pname)
 201 {
 202    switch (pname) {
 203    case GL_AMBIENT:
 204    case GL_DIFFUSE:
 205    case GL_SPECULAR:
 206    case GL_POSITION:
 207       return 4;
 208    case GL_SPOT_DIRECTION:
 209       return 3;
 210    case GL_SPOT_EXPONENT:
 211    case GL_SPOT_CUTOFF:
 212    case GL_CONSTANT_ATTENUATION:
 213    case GL_LINEAR_ATTENUATION:
 214    case GL_QUADRATIC_ATTENUATION:
 215       return 1;
 216    default:
 217       return 0;
 218    }
 219 }
 220
 221 static inline unsigned
 222 _mesa_light_model_enum_to_count(GLenum pname)
 223 {
 224    switch (pname) {
 225    case GL_LIGHT_MODEL_AMBIENT:
 226       return 4;
 227    case GL_LIGHT_MODEL_LOCAL_VIEWER:
 228    case GL_LIGHT_MODEL_TWO_SIDE:
 229    case GL_LIGHT_MODEL_COLOR_CONTROL:
 230       return 1;
 231    default:
 232       return 0;
 233    }
 234 }
 235
 236 static inline unsigned
 237 _mesa_texenv_enum_to_count(GLenum pname)
 238 {
 239    switch (pname) {
 240    case GL_TEXTURE_ENV_MODE:
 241    case GL_COMBINE_RGB:
 242    case GL_COMBINE_ALPHA:
 243    case GL_SOURCE0_RGB:
 244    case GL_SOURCE1_RGB:
 245    case GL_SOURCE2_RGB:
 246    case GL_SOURCE3_RGB_NV:
 247    case GL_SOURCE0_ALPHA:
 248    case GL_SOURCE1_ALPHA:
 249    case GL_SOURCE2_ALPHA:
 250    case GL_SOURCE3_ALPHA_NV:
 251    case GL_OPERAND0_RGB:
 252    case GL_OPERAND1_RGB:
 253    case GL_OPERAND2_RGB:
 254    case GL_OPERAND3_RGB_NV:
 255    case GL_OPERAND0_ALPHA:
 256    case GL_OPERAND1_ALPHA:
 257    case GL_OPERAND2_ALPHA:
 258    case GL_OPERAND3_ALPHA_NV:
 259    case GL_RGB_SCALE:
 260    case GL_ALPHA_SCALE:
 261    case GL_TEXTURE_LOD_BIAS_EXT:
 262    case GL_COORD_REPLACE_NV:
 263       return 1;
 264    case GL_TEXTURE_ENV_COLOR:
 265       return 4;
 266    default:
 267       return 0;
 268    }
 269 }
 270
 271 static inline unsigned
 272 _mesa_texgen_enum_to_count(GLenum pname)
 273 {
 274    switch (pname) {
 275    case GL_TEXTURE_GEN_MODE:
 276       return 1;
 277    case GL_OBJECT_PLANE:
 278    case GL_EYE_PLANE:
 279       return 4;
 280    default:
 281       return 0;
 282    }
 283 }
 284
 285 static inline unsigned
 286 _mesa_material_enum_to_count(GLenum pname)
 287 {
 288    switch (pname) {
 289    case GL_EMISSION:
 290    case GL_AMBIENT:
 291    case GL_DIFFUSE:
 292    case GL_SPECULAR:
 293    case GL_AMBIENT_AND_DIFFUSE:
 294       return 4;
 295    case GL_COLOR_INDEXES:
 296       return 3;
 297    case GL_SHININESS:
 298       return 1;
 299    default:
 300       return 0;
 301    }
 302 }
 303
 304 static inline unsigned
 305 _mesa_point_param_enum_to_count(GLenum pname)
 306 {
 307    switch (pname) {
 308    case GL_DISTANCE_ATTENUATION_EXT:
 309       return 3;
 310    case GL_POINT_SIZE_MIN_EXT:
 311    case GL_POINT_SIZE_MAX_EXT:
 312    case GL_POINT_FADE_THRESHOLD_SIZE_EXT:
 313    case GL_POINT_SPRITE_R_MODE_NV:
 314    case GL_POINT_SPRITE_COORD_ORIGIN:
 315       return 1;
 316    default:
 317       return 0;
 318    }
 319 }
 320
 321 static inline unsigned
 322 _mesa_calllists_enum_to_count(GLenum type)
 323 {
 324    switch (type) {
 325    case GL_BYTE:
 326    case GL_UNSIGNED_BYTE:
 327       return 1;
 328    case GL_SHORT:
 329    case GL_UNSIGNED_SHORT:
 330    case GL_2_BYTES:
 331       return 2;
 332    case GL_3_BYTES:
 333       return 3;
 334    case GL_INT:
 335    case GL_UNSIGNED_INT:
 336    case GL_FLOAT:
 337    case GL_4_BYTES:
 338       return 4;
 339    default:
 340       return 0;
 341    }
 342 }
 343
 344 static inline unsigned
 345 _mesa_patch_param_enum_to_count(GLenum pname)
 346 {
 347    switch (pname) {
 348    case GL_PATCH_DEFAULT_OUTER_LEVEL:
 349       return 4;
 350    case GL_PATCH_DEFAULT_INNER_LEVEL:
 351       return 2;
 352    default:
 353       return 0;
 354    }
 355 }
 356
 357 static inline unsigned
 358 _mesa_memobj_enum_to_count(GLenum pname)
 359 {
 360    switch (pname) {
 361    case GL_DEDICATED_MEMORY_OBJECT_EXT:
 362       return 1;
 363    default:
 364       return 0;
 365    }
 366 }
 367
 368 static inline unsigned
 369 _mesa_semaphore_enum_to_count(GLenum pname)
 370 {
 371    switch (pname) {
 372    /* EXT_semaphore and EXT_semaphore_fd define no parameters */
 373    default:
 374       return 0;
 375    }
 376 }
 377
 378 #endif /* MARSHAL_H */