src/mesa/drivers/dri/i965/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 #pragma once
  25
  26 #include <stdint.h>
  27
  28 #include "compiler/nir/nir.h"
  29
  30 #include "blorp.h"
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 /**
  37  * Binding table indices used by BLORP.
  38  */
  39 enum {
  40    BLORP_RENDERBUFFER_BT_INDEX,
  41    BLORP_TEXTURE_BT_INDEX,
  42    BLORP_NUM_BT_ENTRIES
  43 };
  44
  45 struct brw_blorp_surface_info
  46 {
  47    struct isl_surf surf;
  48    struct blorp_address addr;
  49
  50    struct isl_surf aux_surf;
  51    struct blorp_address aux_addr;
  52    enum isl_aux_usage aux_usage;
  53
  54    union isl_color_value clear_color;
  55
  56    struct isl_view view;
  57
  58    /* Z offset into a 3-D texture or slice of a 2-D array texture. */
  59    uint32_t z_offset;
  60
  61    uint32_t tile_x_sa, tile_y_sa;
  62 };
  63
  64 void
  65 brw_blorp_surface_info_init(struct blorp_context *blorp,
  66                             struct brw_blorp_surface_info *info,
  67                             const struct brw_blorp_surf *surf,
  68                             unsigned int level, unsigned int layer,
  69                             enum isl_format format, bool is_render_target);
  70
  71
  72 struct brw_blorp_coord_transform
  73 {
  74    float multiplier;
  75    float offset;
  76 };
  77
  78 /**
  79  * Bounding rectangle telling pixel discard which pixels are not to be
  80  * touched. This is needed in when surfaces are configured as something else
  81  * what they really are:
  82  *
  83  *    - writing W-tiled stencil as Y-tiled
  84  *    - writing interleaved multisampled as single sampled.
  85  *
  86  * See blorp_nir_discard_if_outside_rect().
  87  */
  88 struct brw_blorp_discard_rect
  89 {
  90    uint32_t x0;
  91    uint32_t x1;
  92    uint32_t y0;
  93    uint32_t y1;
  94 };
  95
  96 /**
  97  * Grid needed for blended and scaled blits of integer formats, see
  98  * blorp_nir_manual_blend_bilinear().
  99  */
 100 struct brw_blorp_rect_grid
 101 {
 102    float x1;
 103    float y1;
 104    float pad[2];
 105 };
 106
 107 struct brw_blorp_wm_inputs
 108 {
 109    struct brw_blorp_discard_rect discard_rect;
 110    struct brw_blorp_rect_grid rect_grid;
 111    struct brw_blorp_coord_transform coord_transform[2];
 112
 113    /* Minimum layer setting works for all the textures types but texture_3d
 114     * for which the setting has no effect. Use the z-coordinate instead.
 115     */
 116    uint32_t src_z;
 117
 118    /* Pad out to an integral number of registers */
 119    uint32_t pad[3];
 120 };
 121
 122 struct brw_blorp_prog_data
 123 {
 124    bool dispatch_8;
 125    bool dispatch_16;
 126
 127    uint8_t first_curbe_grf_0;
 128    uint8_t first_curbe_grf_2;
 129
 130    uint32_t ksp_offset_2;
 131
 132    /**
 133     * True if the WM program should be run in MSDISPMODE_PERSAMPLE with more
 134     * than one sample per pixel.
 135     */
 136    bool persample_msaa_dispatch;
 137
 138    /**
 139     * Mask of which FS inputs are marked flat by the shader source.  This is
 140     * needed for setting up 3DSTATE_SF/SBE.
 141     */
 142    uint32_t flat_inputs;
 143    unsigned num_varying_inputs;
 144    uint64_t inputs_read;
 145 };
 146
 147 static inline unsigned
 148 brw_blorp_get_urb_length(const struct brw_blorp_prog_data *prog_data)
 149 {
 150    if (prog_data == NULL)
 151       return 1;
 152
 153    /* From the BSpec: 3D Pipeline - Strips and Fans - 3DSTATE_SBE
 154     *
 155     * read_length = ceiling((max_source_attr+1)/2)
 156     */
 157    return MAX2((prog_data->num_varying_inputs + 1) / 2, 1);
 158 }
 159
 160 struct brw_blorp_params
 161 {
 162    uint32_t x0;
 163    uint32_t y0;
 164    uint32_t x1;
 165    uint32_t y1;
 166    struct brw_blorp_surface_info depth;
 167    uint32_t depth_format;
 168    struct brw_blorp_surface_info src;
 169    struct brw_blorp_surface_info dst;
 170    enum gen6_hiz_op hiz_op;
 171    union {
 172       unsigned fast_clear_op;
 173       unsigned resolve_type;
 174    };
 175    bool color_write_disable[4];
 176    struct brw_blorp_wm_inputs wm_inputs;
 177    unsigned num_draw_buffers;
 178    unsigned num_layers;
 179    uint32_t wm_prog_kernel;
 180    struct brw_blorp_prog_data *wm_prog_data;
 181 };
 182
 183 void
 184 brw_blorp_params_init(struct brw_blorp_params *params);
 185
 186 struct brw_blorp_blit_prog_key
 187 {
 188    /* Number of samples per pixel that have been configured in the surface
 189     * state for texturing from.
 190     */
 191    unsigned tex_samples;
 192
 193    /* MSAA layout that has been configured in the surface state for texturing
 194     * from.
 195     */
 196    enum isl_msaa_layout tex_layout;
 197
 198    enum isl_aux_usage tex_aux_usage;
 199
 200    /* Actual number of samples per pixel in the source image. */
 201    unsigned src_samples;
 202
 203    /* Actual MSAA layout used by the source image. */
 204    enum isl_msaa_layout src_layout;
 205
 206    /* Number of samples per pixel that have been configured in the render
 207     * target.
 208     */
 209    unsigned rt_samples;
 210
 211    /* MSAA layout that has been configured in the render target. */
 212    enum isl_msaa_layout rt_layout;
 213
 214    /* Actual number of samples per pixel in the destination image. */
 215    unsigned dst_samples;
 216
 217    /* Actual MSAA layout used by the destination image. */
 218    enum isl_msaa_layout dst_layout;
 219
 220    /* Type of the data to be read from the texture (one of
 221     * nir_type_(int|uint|float)).
 222     */
 223    nir_alu_type texture_data_type;
 224
 225    /* True if the source image is W tiled.  If true, the surface state for the
 226     * source image must be configured as Y tiled, and tex_samples must be 0.
 227     */
 228    bool src_tiled_w;
 229
 230    /* True if the destination image is W tiled.  If true, the surface state
 231     * for the render target must be configured as Y tiled, and rt_samples must
 232     * be 0.
 233     */
 234    bool dst_tiled_w;
 235
 236    /* True if all source samples should be blended together to produce each
 237     * destination pixel.  If true, src_tiled_w must be false, tex_samples must
 238     * equal src_samples, and tex_samples must be nonzero.
 239     */
 240    bool blend;
 241
 242    /* True if the rectangle being sent through the rendering pipeline might be
 243     * larger than the destination rectangle, so the WM program should kill any
 244     * pixels that are outside the destination rectangle.
 245     */
 246    bool use_kill;
 247
 248    /**
 249     * True if the WM program should be run in MSDISPMODE_PERSAMPLE with more
 250     * than one sample per pixel.
 251     */
 252    bool persample_msaa_dispatch;
 253
 254    /* True for scaled blitting. */
 255    bool blit_scaled;
 256
 257    /* Scale factors between the pixel grid and the grid of samples. We're
 258     * using grid of samples for bilinear filetring in multisample scaled blits.
 259     */
 260    float x_scale;
 261    float y_scale;
 262
 263    /* True for blits with filter = GL_LINEAR. */
 264    bool bilinear_filter;
 265 };
 266
 267 /**
 268  * \name BLORP internals
 269  * \{
 270  *
 271  * Used internally by gen6_blorp_exec() and gen7_blorp_exec().
 272  */
 273
 274 void brw_blorp_init_wm_prog_key(struct brw_wm_prog_key *wm_key);
 275
 276 const unsigned *
 277 brw_blorp_compile_nir_shader(struct blorp_context *blorp, struct nir_shader *nir,
 278                              const struct brw_wm_prog_key *wm_key,
 279                              bool use_repclear,
 280                              struct brw_blorp_prog_data *prog_data,
 281                              unsigned *program_size);
 282
 283 /** \} */
 284
 285 #ifdef __cplusplus
 286 } /* end extern "C" */
 287 #endif /* __cplusplus */