src/gallium/drivers/llvmpipe/lp_jit.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 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 /**
  29  * @file
  30  * C - JIT interfaces
  31  *
  32  * @author Jose Fonseca <jfonseca@vmware.com>
  33  */
  34
  35 #ifndef LP_JIT_H
  36 #define LP_JIT_H
  37
  38
  39 #include "gallivm/lp_bld_struct.h"
  40 #include "gallivm/lp_bld_limits.h"
  41
  42 #include "pipe/p_state.h"
  43 #include "lp_texture.h"
  44
  45
  46 struct lp_build_format_cache;
  47 struct lp_fragment_shader_variant;
  48 struct lp_compute_shader_variant;
  49 struct llvmpipe_screen;
  50
  51
  52 struct lp_jit_texture
  53 {
  54    uint32_t width;        /* same as number of elements */
  55    uint32_t height;
  56    uint32_t depth;        /* doubles as array size */
  57    const void *base;
  58    uint32_t row_stride[LP_MAX_TEXTURE_LEVELS];
  59    uint32_t img_stride[LP_MAX_TEXTURE_LEVELS];
  60    uint32_t first_level;
  61    uint32_t last_level;
  62    uint32_t mip_offsets[LP_MAX_TEXTURE_LEVELS];
  63    uint32_t num_samples;
  64    uint32_t sample_stride;
  65 };
  66
  67
  68 struct lp_jit_sampler
  69 {
  70    float min_lod;
  71    float max_lod;
  72    float lod_bias;
  73    float border_color[4];
  74 };
  75
  76
  77 struct lp_jit_viewport
  78 {
  79    float min_depth;
  80    float max_depth;
  81 };
  82
  83
  84 struct lp_jit_image
  85 {
  86    uint32_t width;        /* same as number of elements */
  87    uint32_t height;
  88    uint32_t depth;
  89    const void *base;
  90    uint32_t row_stride;
  91    uint32_t img_stride;
  92    uint32_t num_samples;
  93    uint32_t sample_stride;
  94 };
  95
  96 enum {
  97    LP_JIT_TEXTURE_WIDTH = 0,
  98    LP_JIT_TEXTURE_HEIGHT,
  99    LP_JIT_TEXTURE_DEPTH,
 100    LP_JIT_TEXTURE_BASE,
 101    LP_JIT_TEXTURE_ROW_STRIDE,
 102    LP_JIT_TEXTURE_IMG_STRIDE,
 103    LP_JIT_TEXTURE_FIRST_LEVEL,
 104    LP_JIT_TEXTURE_LAST_LEVEL,
 105    LP_JIT_TEXTURE_MIP_OFFSETS,
 106    LP_JIT_TEXTURE_NUM_SAMPLES,
 107    LP_JIT_TEXTURE_SAMPLE_STRIDE,
 108    LP_JIT_TEXTURE_NUM_FIELDS  /* number of fields above */
 109 };
 110
 111
 112 enum {
 113    LP_JIT_SAMPLER_MIN_LOD,
 114    LP_JIT_SAMPLER_MAX_LOD,
 115    LP_JIT_SAMPLER_LOD_BIAS,
 116    LP_JIT_SAMPLER_BORDER_COLOR,
 117    LP_JIT_SAMPLER_NUM_FIELDS  /* number of fields above */
 118 };
 119
 120
 121 enum {
 122    LP_JIT_VIEWPORT_MIN_DEPTH,
 123    LP_JIT_VIEWPORT_MAX_DEPTH,
 124    LP_JIT_VIEWPORT_NUM_FIELDS /* number of fields above */
 125 };
 126
 127 enum {
 128    LP_JIT_IMAGE_WIDTH = 0,
 129    LP_JIT_IMAGE_HEIGHT,
 130    LP_JIT_IMAGE_DEPTH,
 131    LP_JIT_IMAGE_BASE,
 132    LP_JIT_IMAGE_ROW_STRIDE,
 133    LP_JIT_IMAGE_IMG_STRIDE,
 134    LP_JIT_IMAGE_NUM_SAMPLES,
 135    LP_JIT_IMAGE_SAMPLE_STRIDE,
 136    LP_JIT_IMAGE_NUM_FIELDS  /* number of fields above */
 137 };
 138 /**
 139  * This structure is passed directly to the generated fragment shader.
 140  *
 141  * It contains the derived state.
 142  *
 143  * Changes here must be reflected in the lp_jit_context_* macros and
 144  * lp_jit_init_types function. Changes to the ordering should be avoided.
 145  *
 146  * Only use types with a clear size and padding here, in particular prefer the
 147  * stdint.h types to the basic integer types.
 148  */
 149 struct lp_jit_context
 150 {
 151    const float *constants[LP_MAX_TGSI_CONST_BUFFERS];
 152    int num_constants[LP_MAX_TGSI_CONST_BUFFERS];
 153
 154    struct lp_jit_texture textures[PIPE_MAX_SHADER_SAMPLER_VIEWS];
 155    struct lp_jit_sampler samplers[PIPE_MAX_SAMPLERS];
 156    struct lp_jit_image images[PIPE_MAX_SHADER_IMAGES];
 157
 158    float alpha_ref_value;
 159
 160    uint32_t stencil_ref_front, stencil_ref_back;
 161
 162    uint8_t *u8_blend_color;
 163    float *f_blend_color;
 164
 165    struct lp_jit_viewport *viewports;
 166
 167    const uint32_t *ssbos[LP_MAX_TGSI_SHADER_BUFFERS];
 168    int num_ssbos[LP_MAX_TGSI_SHADER_BUFFERS];
 169
 170    uint32_t sample_mask;
 171 };
 172
 173
 174 /**
 175  * These enum values must match the position of the fields in the
 176  * lp_jit_context struct above.
 177  */
 178 enum {
 179    LP_JIT_CTX_CONSTANTS = 0,
 180    LP_JIT_CTX_NUM_CONSTANTS,
 181    LP_JIT_CTX_TEXTURES,
 182    LP_JIT_CTX_SAMPLERS,
 183    LP_JIT_CTX_IMAGES,
 184    LP_JIT_CTX_ALPHA_REF,
 185    LP_JIT_CTX_STENCIL_REF_FRONT,
 186    LP_JIT_CTX_STENCIL_REF_BACK,
 187    LP_JIT_CTX_U8_BLEND_COLOR,
 188    LP_JIT_CTX_F_BLEND_COLOR,
 189    LP_JIT_CTX_VIEWPORTS,
 190    LP_JIT_CTX_SSBOS,
 191    LP_JIT_CTX_NUM_SSBOS,
 192    LP_JIT_CTX_SAMPLE_MASK,
 193    LP_JIT_CTX_COUNT
 194 };
 195
 196
 197 #define lp_jit_context_constants(_gallivm, _ptr) \
 198    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CTX_CONSTANTS, "constants")
 199
 200 #define lp_jit_context_num_constants(_gallivm, _ptr) \
 201    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CTX_NUM_CONSTANTS, "num_constants")
 202
 203 #define lp_jit_context_textures(_gallivm, _ptr) \
 204    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CTX_TEXTURES, "textures")
 205
 206 #define lp_jit_context_samplers(_gallivm, _ptr) \
 207    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CTX_SAMPLERS, "samplers")
 208
 209 #define lp_jit_context_images(_gallivm, _ptr) \
 210    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CTX_IMAGES, "images")
 211
 212 #define lp_jit_context_alpha_ref_value(_gallivm, _ptr) \
 213    lp_build_struct_get(_gallivm, _ptr, LP_JIT_CTX_ALPHA_REF, "alpha_ref_value")
 214
 215 #define lp_jit_context_stencil_ref_front_value(_gallivm, _ptr) \
 216    lp_build_struct_get(_gallivm, _ptr, LP_JIT_CTX_STENCIL_REF_FRONT, "stencil_ref_front")
 217
 218 #define lp_jit_context_stencil_ref_back_value(_gallivm, _ptr) \
 219    lp_build_struct_get(_gallivm, _ptr, LP_JIT_CTX_STENCIL_REF_BACK, "stencil_ref_back")
 220
 221 #define lp_jit_context_u8_blend_color(_gallivm, _ptr) \
 222    lp_build_struct_get(_gallivm, _ptr, LP_JIT_CTX_U8_BLEND_COLOR, "u8_blend_color")
 223
 224 #define lp_jit_context_f_blend_color(_gallivm, _ptr) \
 225    lp_build_struct_get(_gallivm, _ptr, LP_JIT_CTX_F_BLEND_COLOR, "f_blend_color")
 226
 227 #define lp_jit_context_viewports(_gallivm, _ptr) \
 228    lp_build_struct_get(_gallivm, _ptr, LP_JIT_CTX_VIEWPORTS, "viewports")
 229
 230 #define lp_jit_context_ssbos(_gallivm, _ptr) \
 231    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CTX_SSBOS, "ssbos")
 232
 233 #define lp_jit_context_num_ssbos(_gallivm, _ptr) \
 234    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CTX_NUM_SSBOS, "num_ssbos")
 235
 236 #define lp_jit_context_sample_mask(_gallivm, _ptr) \
 237    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CTX_SAMPLE_MASK, "sample_mask")
 238
 239 struct lp_jit_thread_data
 240 {
 241    struct lp_build_format_cache *cache;
 242    uint64_t vis_counter;
 243    uint64_t ps_invocations;
 244
 245    /*
 246     * Non-interpolated rasterizer state passed through to the fragment shader.
 247     */
 248    struct {
 249       uint32_t viewport_index;
 250    } raster_state;
 251 };
 252
 253
 254 enum {
 255    LP_JIT_THREAD_DATA_CACHE = 0,
 256    LP_JIT_THREAD_DATA_COUNTER,
 257    LP_JIT_THREAD_DATA_INVOCATIONS,
 258    LP_JIT_THREAD_DATA_RASTER_STATE_VIEWPORT_INDEX,
 259    LP_JIT_THREAD_DATA_COUNT
 260 };
 261
 262
 263 #define lp_jit_thread_data_cache(_gallivm, _ptr) \
 264    lp_build_struct_get(_gallivm, _ptr, LP_JIT_THREAD_DATA_CACHE, "cache")
 265
 266 #define lp_jit_thread_data_counter(_gallivm, _ptr) \
 267    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_THREAD_DATA_COUNTER, "counter")
 268
 269 #define lp_jit_thread_data_invocations(_gallivm, _ptr) \
 270    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_THREAD_DATA_INVOCATIONS, "invocs")
 271
 272 #define lp_jit_thread_data_raster_state_viewport_index(_gallivm, _ptr) \
 273    lp_build_struct_get(_gallivm, _ptr, \
 274                        LP_JIT_THREAD_DATA_RASTER_STATE_VIEWPORT_INDEX, \
 275                        "raster_state.viewport_index")
 276
 277 /**
 278  * typedef for fragment shader function
 279  *
 280  * @param context       jit context
 281  * @param x             block start x
 282  * @param y             block start y
 283  * @param facing        is front facing
 284  * @param a0            shader input a0
 285  * @param dadx          shader input dadx
 286  * @param dady          shader input dady
 287  * @param color         color buffer
 288  * @param depth         depth buffer
 289  * @param mask          mask of visible pixels in block (16-bits per sample)
 290  * @param thread_data   task thread data
 291  * @param stride        color buffer row stride in bytes
 292  * @param depth_stride  depth buffer row stride in bytes
 293  */
 294 typedef void
 295 (*lp_jit_frag_func)(const struct lp_jit_context *context,
 296                     uint32_t x,
 297                     uint32_t y,
 298                     uint32_t facing,
 299                     const void *a0,
 300                     const void *dadx,
 301                     const void *dady,
 302                     uint8_t **color,
 303                     uint8_t *depth,
 304                     uint64_t mask,
 305                     struct lp_jit_thread_data *thread_data,
 306                     unsigned *stride,
 307                     unsigned depth_stride,
 308                     unsigned *color_sample_stride,
 309                     unsigned depth_sample_stride);
 310
 311
 312 struct lp_jit_cs_thread_data
 313 {
 314    struct lp_build_format_cache *cache;
 315    void *shared;
 316 };
 317
 318 enum {
 319    LP_JIT_CS_THREAD_DATA_CACHE = 0,
 320    LP_JIT_CS_THREAD_DATA_SHARED = 1,
 321    LP_JIT_CS_THREAD_DATA_COUNT
 322 };
 323
 324
 325 #define lp_jit_cs_thread_data_cache(_gallivm, _ptr) \
 326    lp_build_struct_get(_gallivm, _ptr, LP_JIT_CS_THREAD_DATA_CACHE, "cache")
 327
 328 #define lp_jit_cs_thread_data_shared(_gallivm, _ptr) \
 329    lp_build_struct_get(_gallivm, _ptr, LP_JIT_CS_THREAD_DATA_SHARED, "shared")
 330
 331 struct lp_jit_cs_context
 332 {
 333    const float *constants[LP_MAX_TGSI_CONST_BUFFERS];
 334    int num_constants[LP_MAX_TGSI_CONST_BUFFERS];
 335
 336    struct lp_jit_texture textures[PIPE_MAX_SHADER_SAMPLER_VIEWS];
 337    struct lp_jit_sampler samplers[PIPE_MAX_SAMPLERS];
 338    struct lp_jit_image images[PIPE_MAX_SHADER_IMAGES];
 339
 340    const uint32_t *ssbos[LP_MAX_TGSI_SHADER_BUFFERS];
 341    int num_ssbos[LP_MAX_TGSI_SHADER_BUFFERS];
 342
 343    void *kernel_args;
 344
 345    uint32_t shared_size;
 346 };
 347
 348 /**
 349  * These enum values must match the position of the fields in the
 350  * lp_jit_context struct above.
 351  */
 352 enum {
 353    LP_JIT_CS_CTX_CONSTANTS = 0,
 354    LP_JIT_CS_CTX_NUM_CONSTANTS,
 355    LP_JIT_CS_CTX_TEXTURES, /* must match the LP_JIT_CTX_TEXTURES */
 356    LP_JIT_CS_CTX_SAMPLERS,
 357    LP_JIT_CS_CTX_IMAGES,
 358    LP_JIT_CS_CTX_SSBOS,
 359    LP_JIT_CS_CTX_NUM_SSBOS,
 360    LP_JIT_CS_CTX_KERNEL_ARGS,
 361    LP_JIT_CS_CTX_SHARED_SIZE,
 362    LP_JIT_CS_CTX_COUNT
 363 };
 364
 365 #define lp_jit_cs_context_constants(_gallivm, _ptr) \
 366    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CS_CTX_CONSTANTS, "constants")
 367
 368 #define lp_jit_cs_context_num_constants(_gallivm, _ptr) \
 369    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CS_CTX_NUM_CONSTANTS, "num_constants")
 370
 371 #define lp_jit_cs_context_textures(_gallivm, _ptr) \
 372    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CS_CTX_TEXTURES, "textures")
 373
 374 #define lp_jit_cs_context_samplers(_gallivm, _ptr) \
 375    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CS_CTX_SAMPLERS, "samplers")
 376
 377 #define lp_jit_cs_context_images(_gallivm, _ptr) \
 378    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CS_CTX_IMAGES, "images")
 379
 380 #define lp_jit_cs_context_ssbos(_gallivm, _ptr) \
 381    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CS_CTX_SSBOS, "ssbos")
 382
 383 #define lp_jit_cs_context_num_ssbos(_gallivm, _ptr) \
 384    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CS_CTX_NUM_SSBOS, "num_ssbos")
 385
 386 #define lp_jit_cs_context_shared_size(_gallivm, _ptr) \
 387    lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CS_CTX_SHARED_SIZE, "shared_size")
 388
 389 #define lp_jit_cs_context_kernel_args(_gallivm, _ptr) \
 390    lp_build_struct_get(_gallivm, _ptr, LP_JIT_CS_CTX_KERNEL_ARGS, "kernel_args")
 391
 392
 393 typedef void
 394 (*lp_jit_cs_func)(const struct lp_jit_cs_context *context,
 395                   uint32_t x,
 396                   uint32_t y,
 397                   uint32_t z,
 398                   uint32_t grid_x,
 399                   uint32_t grid_y,
 400                   uint32_t grid_z,
 401                   uint32_t grid_size_x,
 402                   uint32_t grid_size_y,
 403                   uint32_t grid_size_z,
 404                   uint32_t work_dim,
 405                   struct lp_jit_cs_thread_data *thread_data);
 406
 407 void
 408 lp_jit_screen_cleanup(struct llvmpipe_screen *screen);
 409
 410
 411 boolean
 412 lp_jit_screen_init(struct llvmpipe_screen *screen);
 413
 414
 415 void
 416 lp_jit_init_types(struct lp_fragment_shader_variant *lp);
 417
 418 void
 419 lp_jit_init_cs_types(struct lp_compute_shader_variant *lp);
 420 #endif /* LP_JIT_H */