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