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 "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 enum blorp_fast_clear_op {
  48    BLORP_FAST_CLEAR_OP_NONE = 0,
  49    BLORP_FAST_CLEAR_OP_CLEAR,
  50    BLORP_FAST_CLEAR_OP_RESOLVE_PARTIAL,
  51    BLORP_FAST_CLEAR_OP_RESOLVE_FULL,
  52 };
  53
  54 struct brw_blorp_surface_info
  55 {
  56    struct isl_surf surf;
  57    struct blorp_address addr;
  58
  59    struct isl_surf aux_surf;
  60    struct blorp_address aux_addr;
  61    enum isl_aux_usage aux_usage;
  62
  63    union isl_color_value clear_color;
  64
  65    struct isl_view view;
  66
  67    /* Z offset into a 3-D texture or slice of a 2-D array texture. */
  68    uint32_t z_offset;
  69
  70    uint32_t tile_x_sa, tile_y_sa;
  71 };
  72
  73 void
  74 brw_blorp_surface_info_init(struct blorp_context *blorp,
  75                             struct brw_blorp_surface_info *info,
  76                             const struct blorp_surf *surf,
  77                             unsigned int level, unsigned int layer,
  78                             enum isl_format format, bool is_render_target);
  79
  80
  81 struct brw_blorp_coord_transform
  82 {
  83    float multiplier;
  84    float offset;
  85 };
  86
  87 /**
  88  * Bounding rectangle telling pixel discard which pixels are not to be
  89  * touched. This is needed in when surfaces are configured as something else
  90  * what they really are:
  91  *
  92  *    - writing W-tiled stencil as Y-tiled
  93  *    - writing interleaved multisampled as single sampled.
  94  *
  95  * See blorp_nir_discard_if_outside_rect().
  96  */
  97 struct brw_blorp_discard_rect
  98 {
  99    uint32_t x0;
 100    uint32_t x1;
 101    uint32_t y0;
 102    uint32_t y1;
 103 };
 104
 105 /**
 106  * Grid needed for blended and scaled blits of integer formats, see
 107  * blorp_nir_manual_blend_bilinear().
 108  */
 109 struct brw_blorp_rect_grid
 110 {
 111    float x1;
 112    float y1;
 113    float pad[2];
 114 };
 115
 116 struct blorp_surf_offset {
 117    uint32_t x;
 118    uint32_t y;
 119 };
 120
 121 struct brw_blorp_wm_inputs
 122 {
 123    struct brw_blorp_discard_rect discard_rect;
 124    struct brw_blorp_rect_grid rect_grid;
 125    struct brw_blorp_coord_transform coord_transform[2];
 126
 127    struct blorp_surf_offset src_offset;
 128    struct blorp_surf_offset dst_offset;
 129
 130    /* Minimum layer setting works for all the textures types but texture_3d
 131     * for which the setting has no effect. Use the z-coordinate instead.
 132     */
 133    uint32_t src_z;
 134
 135    /* Pad out to an integral number of registers */
 136    uint32_t pad[1];
 137 };
 138
 139 struct brw_blorp_prog_data
 140 {
 141    bool dispatch_8;
 142    bool dispatch_16;
 143
 144    uint8_t first_curbe_grf_0;
 145    uint8_t first_curbe_grf_2;
 146
 147    uint32_t ksp_offset_2;
 148
 149    /**
 150     * True if the WM program should be run in MSDISPMODE_PERSAMPLE with more
 151     * than one sample per pixel.
 152     */
 153    bool persample_msaa_dispatch;
 154
 155    /**
 156     * Mask of which FS inputs are marked flat by the shader source.  This is
 157     * needed for setting up 3DSTATE_SF/SBE.
 158     */
 159    uint32_t flat_inputs;
 160    unsigned num_varying_inputs;
 161    uint64_t inputs_read;
 162 };
 163
 164 static inline unsigned
 165 brw_blorp_get_urb_length(const struct brw_blorp_prog_data *prog_data)
 166 {
 167    if (prog_data == NULL)
 168       return 1;
 169
 170    /* From the BSpec: 3D Pipeline - Strips and Fans - 3DSTATE_SBE
 171     *
 172     * read_length = ceiling((max_source_attr+1)/2)
 173     */
 174    return MAX2((prog_data->num_varying_inputs + 1) / 2, 1);
 175 }
 176
 177 struct blorp_params
 178 {
 179    uint32_t x0;
 180    uint32_t y0;
 181    uint32_t x1;
 182    uint32_t y1;
 183    float z;
 184    struct brw_blorp_surface_info depth;
 185    struct brw_blorp_surface_info stencil;
 186    uint32_t depth_format;
 187    struct brw_blorp_surface_info src;
 188    struct brw_blorp_surface_info dst;
 189    enum blorp_hiz_op hiz_op;
 190    enum blorp_fast_clear_op fast_clear_op;
 191    bool color_write_disable[4];
 192    struct brw_blorp_wm_inputs wm_inputs;
 193    unsigned num_draw_buffers;
 194    unsigned num_layers;
 195    uint32_t wm_prog_kernel;
 196    struct brw_blorp_prog_data *wm_prog_data;
 197 };
 198
 199 void blorp_params_init(struct blorp_params *params);
 200
 201 struct brw_blorp_blit_prog_key
 202 {
 203    /* Number of samples per pixel that have been configured in the surface
 204     * state for texturing from.
 205     */
 206    unsigned tex_samples;
 207
 208    /* MSAA layout that has been configured in the surface state for texturing
 209     * from.
 210     */
 211    enum isl_msaa_layout tex_layout;
 212
 213    enum isl_aux_usage tex_aux_usage;
 214
 215    /* Actual number of samples per pixel in the source image. */
 216    unsigned src_samples;
 217
 218    /* Actual MSAA layout used by the source image. */
 219    enum isl_msaa_layout src_layout;
 220
 221    /* Number of samples per pixel that have been configured in the render
 222     * target.
 223     */
 224    unsigned rt_samples;
 225
 226    /* MSAA layout that has been configured in the render target. */
 227    enum isl_msaa_layout rt_layout;
 228
 229    /* Actual number of samples per pixel in the destination image. */
 230    unsigned dst_samples;
 231
 232    /* Actual MSAA layout used by the destination image. */
 233    enum isl_msaa_layout dst_layout;
 234
 235    /* Type of the data to be read from the texture (one of
 236     * nir_type_(int|uint|float)).
 237     */
 238    nir_alu_type texture_data_type;
 239
 240    /* True if the source image is W tiled.  If true, the surface state for the
 241     * source image must be configured as Y tiled, and tex_samples must be 0.
 242     */
 243    bool src_tiled_w;
 244
 245    /* True if the destination image is W tiled.  If true, the surface state
 246     * for the render target must be configured as Y tiled, and rt_samples must
 247     * be 0.
 248     */
 249    bool dst_tiled_w;
 250
 251    /* True if the destination is an RGB format.  If true, the surface state
 252     * for the render target must be configured as red with three times the
 253     * normal width.  We need to do this because you cannot render to
 254     * non-power-of-two formats.
 255     */
 256    bool dst_rgb;
 257
 258    /* True if all source samples should be blended together to produce each
 259     * destination pixel.  If true, src_tiled_w must be false, tex_samples must
 260     * equal src_samples, and tex_samples must be nonzero.
 261     */
 262    bool blend;
 263
 264    /* True if the rectangle being sent through the rendering pipeline might be
 265     * larger than the destination rectangle, so the WM program should kill any
 266     * pixels that are outside the destination rectangle.
 267     */
 268    bool use_kill;
 269
 270    /**
 271     * True if the WM program should be run in MSDISPMODE_PERSAMPLE with more
 272     * than one sample per pixel.
 273     */
 274    bool persample_msaa_dispatch;
 275
 276    /* True for scaled blitting. */
 277    bool blit_scaled;
 278
 279    /* True if this blit operation may involve intratile offsets on the source.
 280     * In this case, we need to add the offset before texturing.
 281     */
 282    bool need_src_offset;
 283
 284    /* True if this blit operation may involve intratile offsets on the
 285     * destination.  In this case, we need to add the offset to gl_FragCoord.
 286     */
 287    bool need_dst_offset;
 288
 289    /* Scale factors between the pixel grid and the grid of samples. We're
 290     * using grid of samples for bilinear filetring in multisample scaled blits.
 291     */
 292    float x_scale;
 293    float y_scale;
 294
 295    /* True for blits with filter = GL_LINEAR. */
 296    bool bilinear_filter;
 297 };
 298
 299 /**
 300  * \name BLORP internals
 301  * \{
 302  *
 303  * Used internally by gen6_blorp_exec() and gen7_blorp_exec().
 304  */
 305
 306 void brw_blorp_init_wm_prog_key(struct brw_wm_prog_key *wm_key);
 307
 308 const unsigned *
 309 brw_blorp_compile_nir_shader(struct blorp_context *blorp, struct nir_shader *nir,
 310                              const struct brw_wm_prog_key *wm_key,
 311                              bool use_repclear,
 312                              struct brw_blorp_prog_data *prog_data,
 313                              unsigned *program_size);
 314
 315 /** \} */
 316
 317 #ifdef __cplusplus
 318 } /* end extern "C" */
 319 #endif /* __cplusplus */
 320
 321 #endif /* BLORP_PRIV_H */