src/intel/blorp/blorp_priv.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 #ifndef BLORP_PRIV_H
  25 #define BLORP_PRIV_H
  26
  27 #include <stdint.h>
  28
  29 #include "compiler/nir/nir.h"
  30 #include "compiler/brw_compiler.h"
  31
  32 #include "blorp.h"
  33
  34 #ifdef __cplusplus
  35 extern "C" {
  36 #endif
  37
  38 /**
  39  * Binding table indices used by BLORP.
  40  */
  41 enum {
  42    BLORP_RENDERBUFFER_BT_INDEX,
  43    BLORP_TEXTURE_BT_INDEX,
  44    BLORP_NUM_BT_ENTRIES
  45 };
  46
  47 struct brw_blorp_surface_info
  48 {
  49    bool enabled;
  50
  51    struct isl_surf surf;
  52    struct blorp_address addr;
  53
  54    struct isl_surf aux_surf;
  55    struct blorp_address aux_addr;
  56    enum isl_aux_usage aux_usage;
  57
  58    union isl_color_value clear_color;
  59    struct blorp_address clear_color_addr;
  60
  61    struct isl_view view;
  62
  63    /* Z offset into a 3-D texture or slice of a 2-D array texture. */
  64    uint32_t z_offset;
  65
  66    uint32_t tile_x_sa, tile_y_sa;
  67 };
  68
  69 void
  70 brw_blorp_surface_info_init(struct blorp_context *blorp,
  71                             struct brw_blorp_surface_info *info,
  72                             const struct blorp_surf *surf,
  73                             unsigned int level, unsigned int layer,
  74                             enum isl_format format, bool is_render_target);
  75 void
  76 blorp_surf_convert_to_single_slice(const struct isl_device *isl_dev,
  77                                    struct brw_blorp_surface_info *info);
  78 void
  79 surf_fake_rgb_with_red(const struct isl_device *isl_dev,
  80                        struct brw_blorp_surface_info *info);
  81 void
  82 blorp_surf_convert_to_uncompressed(const struct isl_device *isl_dev,
  83                                    struct brw_blorp_surface_info *info,
  84                                    uint32_t *x, uint32_t *y,
  85                                    uint32_t *width, uint32_t *height);
  86 void
  87 blorp_surf_fake_interleaved_msaa(const struct isl_device *isl_dev,
  88                                  struct brw_blorp_surface_info *info);
  89 void
  90 blorp_surf_retile_w_to_y(const struct isl_device *isl_dev,
  91                          struct brw_blorp_surface_info *info);
  92
  93
  94 struct brw_blorp_coord_transform
  95 {
  96    float multiplier;
  97    float offset;
  98 };
  99
 100 /**
 101  * Bounding rectangle telling pixel discard which pixels are not to be
 102  * touched. This is needed in when surfaces are configured as something else
 103  * what they really are:
 104  *
 105  *    - writing W-tiled stencil as Y-tiled
 106  *    - writing interleaved multisampled as single sampled.
 107  *
 108  * See blorp_nir_discard_if_outside_rect().
 109  */
 110 struct brw_blorp_discard_rect
 111 {
 112    uint32_t x0;
 113    uint32_t x1;
 114    uint32_t y0;
 115    uint32_t y1;
 116 };
 117
 118 /**
 119  * Grid needed for blended and scaled blits of integer formats, see
 120  * blorp_nir_manual_blend_bilinear().
 121  */
 122 struct brw_blorp_rect_grid
 123 {
 124    float x1;
 125    float y1;
 126    float pad[2];
 127 };
 128
 129 struct blorp_surf_offset {
 130    uint32_t x;
 131    uint32_t y;
 132 };
 133
 134 struct brw_blorp_wm_inputs
 135 {
 136    uint32_t clear_color[4];
 137
 138    struct brw_blorp_discard_rect discard_rect;
 139    struct brw_blorp_rect_grid rect_grid;
 140    struct brw_blorp_coord_transform coord_transform[2];
 141
 142    struct blorp_surf_offset src_offset;
 143    struct blorp_surf_offset dst_offset;
 144
 145    /* (1/width, 1/height) for the source surface */
 146    float src_inv_size[2];
 147
 148    /* Minimum layer setting works for all the textures types but texture_3d
 149     * for which the setting has no effect. Use the z-coordinate instead.
 150     */
 151    uint32_t src_z;
 152
 153    /* Pad out to an integral number of registers */
 154    uint32_t pad[1];
 155 };
 156
 157 #define BLORP_CREATE_NIR_INPUT(shader, name, type) ({ \
 158    nir_variable *input = nir_variable_create((shader), nir_var_shader_in, \
 159                                              type, #name); \
 160    if ((shader)->info.stage == MESA_SHADER_FRAGMENT) \
 161       input->data.interpolation = INTERP_MODE_FLAT; \
 162    input->data.location = VARYING_SLOT_VAR0 + \
 163       offsetof(struct brw_blorp_wm_inputs, name) / (4 * sizeof(float)); \
 164    input->data.location_frac = \
 165       (offsetof(struct brw_blorp_wm_inputs, name) / sizeof(float)) % 4; \
 166    input; \
 167 })
 168
 169 struct blorp_vs_inputs {
 170    uint32_t base_layer;
 171    uint32_t _instance_id; /* Set in hardware by SGVS */
 172    uint32_t pad[2];
 173 };
 174
 175 static inline unsigned
 176 brw_blorp_get_urb_length(const struct brw_wm_prog_data *prog_data)
 177 {
 178    if (prog_data == NULL)
 179       return 1;
 180
 181    /* From the BSpec: 3D Pipeline - Strips and Fans - 3DSTATE_SBE
 182     *
 183     * read_length = ceiling((max_source_attr+1)/2)
 184     */
 185    return MAX2((prog_data->num_varying_inputs + 1) / 2, 1);
 186 }
 187
 188 struct blorp_params
 189 {
 190    uint32_t x0;
 191    uint32_t y0;
 192    uint32_t x1;
 193    uint32_t y1;
 194    float z;
 195    uint8_t stencil_mask;
 196    uint8_t stencil_ref;
 197    struct brw_blorp_surface_info depth;
 198    struct brw_blorp_surface_info stencil;
 199    uint32_t depth_format;
 200    struct brw_blorp_surface_info src;
 201    struct brw_blorp_surface_info dst;
 202    enum isl_aux_op hiz_op;
 203    bool full_surface_hiz_op;
 204    enum isl_aux_op fast_clear_op;
 205    bool color_write_disable[4];
 206    struct brw_blorp_wm_inputs wm_inputs;
 207    struct blorp_vs_inputs vs_inputs;
 208    bool dst_clear_color_as_input;
 209    unsigned num_samples;
 210    unsigned num_draw_buffers;
 211    unsigned num_layers;
 212    uint32_t vs_prog_kernel;
 213    struct brw_vs_prog_data *vs_prog_data;
 214    uint32_t sf_prog_kernel;
 215    struct brw_sf_prog_data *sf_prog_data;
 216    uint32_t wm_prog_kernel;
 217    struct brw_wm_prog_data *wm_prog_data;
 218
 219    bool use_pre_baked_binding_table;
 220    uint32_t pre_baked_binding_table_offset;
 221 };
 222
 223 void blorp_params_init(struct blorp_params *params);
 224
 225 enum blorp_shader_type {
 226    BLORP_SHADER_TYPE_BLIT,
 227    BLORP_SHADER_TYPE_CLEAR,
 228    BLORP_SHADER_TYPE_MCS_PARTIAL_RESOLVE,
 229    BLORP_SHADER_TYPE_LAYER_OFFSET_VS,
 230    BLORP_SHADER_TYPE_GEN4_SF,
 231 };
 232
 233 struct brw_blorp_blit_prog_key
 234 {
 235    enum blorp_shader_type shader_type; /* Must be BLORP_SHADER_TYPE_BLIT */
 236
 237    /* Number of samples per pixel that have been configured in the surface
 238     * state for texturing from.
 239     */
 240    unsigned tex_samples;
 241
 242    /* MSAA layout that has been configured in the surface state for texturing
 243     * from.
 244     */
 245    enum isl_msaa_layout tex_layout;
 246
 247    enum isl_aux_usage tex_aux_usage;
 248
 249    /* Actual number of samples per pixel in the source image. */
 250    unsigned src_samples;
 251
 252    /* Actual MSAA layout used by the source image. */
 253    enum isl_msaa_layout src_layout;
 254
 255    /* The swizzle to apply to the source in the shader */
 256    struct isl_swizzle src_swizzle;
 257
 258    /* The format of the source if format-specific workarounds are needed
 259     * and 0 (ISL_FORMAT_R32G32B32A32_FLOAT) if the destination is natively
 260     * renderable.
 261     */
 262    enum isl_format src_format;
 263
 264    /* True if the source requires normalized coordinates */
 265    bool src_coords_normalized;
 266
 267    /* Number of samples per pixel that have been configured in the render
 268     * target.
 269     */
 270    unsigned rt_samples;
 271
 272    /* MSAA layout that has been configured in the render target. */
 273    enum isl_msaa_layout rt_layout;
 274
 275    /* Actual number of samples per pixel in the destination image. */
 276    unsigned dst_samples;
 277
 278    /* Actual MSAA layout used by the destination image. */
 279    enum isl_msaa_layout dst_layout;
 280
 281    /* The swizzle to apply to the destination in the shader */
 282    struct isl_swizzle dst_swizzle;
 283
 284    /* The format of the destination if format-specific workarounds are needed
 285     * and 0 (ISL_FORMAT_R32G32B32A32_FLOAT) if the destination is natively
 286     * renderable.
 287     */
 288    enum isl_format dst_format;
 289
 290    /* Whether or not the format workarounds are a bitcast operation */
 291    bool format_bit_cast;
 292
 293    /** True if we need to perform SINT -> UINT clamping. */
 294    bool sint32_to_uint;
 295
 296    /** True if we need to perform UINT -> SINT clamping. */
 297    bool uint32_to_sint;
 298
 299    /* Type of the data to be read from the texture (one of
 300     * nir_type_(int|uint|float)).
 301     */
 302    nir_alu_type texture_data_type;
 303
 304    /* True if the source image is W tiled.  If true, the surface state for the
 305     * source image must be configured as Y tiled, and tex_samples must be 0.
 306     */
 307    bool src_tiled_w;
 308
 309    /* True if the destination image is W tiled.  If true, the surface state
 310     * for the render target must be configured as Y tiled, and rt_samples must
 311     * be 0.
 312     */
 313    bool dst_tiled_w;
 314
 315    /* True if the destination is an RGB format.  If true, the surface state
 316     * for the render target must be configured as red with three times the
 317     * normal width.  We need to do this because you cannot render to
 318     * non-power-of-two formats.
 319     */
 320    bool dst_rgb;
 321
 322    isl_surf_usage_flags_t dst_usage;
 323
 324    enum blorp_filter filter;
 325
 326    /* True if the rectangle being sent through the rendering pipeline might be
 327     * larger than the destination rectangle, so the WM program should kill any
 328     * pixels that are outside the destination rectangle.
 329     */
 330    bool use_kill;
 331
 332    /**
 333     * True if the WM program should be run in MSDISPMODE_PERSAMPLE with more
 334     * than one sample per pixel.
 335     */
 336    bool persample_msaa_dispatch;
 337
 338    /* True if this blit operation may involve intratile offsets on the source.
 339     * In this case, we need to add the offset before texturing.
 340     */
 341    bool need_src_offset;
 342
 343    /* True if this blit operation may involve intratile offsets on the
 344     * destination.  In this case, we need to add the offset to gl_FragCoord.
 345     */
 346    bool need_dst_offset;
 347
 348    /* Scale factors between the pixel grid and the grid of samples. We're
 349     * using grid of samples for bilinear filetring in multisample scaled blits.
 350     */
 351    float x_scale;
 352    float y_scale;
 353 };
 354
 355 /**
 356  * \name BLORP internals
 357  * \{
 358  *
 359  * Used internally by gen6_blorp_exec() and gen7_blorp_exec().
 360  */
 361
 362 void brw_blorp_init_wm_prog_key(struct brw_wm_prog_key *wm_key);
 363
 364 const unsigned *
 365 blorp_compile_fs(struct blorp_context *blorp, void *mem_ctx,
 366                  struct nir_shader *nir,
 367                  struct brw_wm_prog_key *wm_key,
 368                  bool use_repclear,
 369                  struct brw_wm_prog_data *wm_prog_data);
 370
 371 const unsigned *
 372 blorp_compile_vs(struct blorp_context *blorp, void *mem_ctx,
 373                  struct nir_shader *nir,
 374                  struct brw_vs_prog_data *vs_prog_data);
 375
 376 bool
 377 blorp_ensure_sf_program(struct blorp_batch *batch,
 378                         struct blorp_params *params);
 379
 380 /** \} */
 381
 382 #ifdef __cplusplus
 383 } /* end extern "C" */
 384 #endif /* __cplusplus */
 385
 386 #endif /* BLORP_PRIV_H */