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