src/mesa/drivers/dri/i965/gen6_blorp.h

   1 /*
   2  * Copyright © 2011 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 #ifdef __cplusplus
  29 extern "C" {
  30 #endif
  31
  32 struct intel_context;
  33 struct intel_mipmap_tree;
  34
  35 /**
  36  * For an overview of the HiZ operations, see the following sections of the
  37  * Sandy Bridge PRM, Volume 1, Part2:
  38  *   - 7.5.3.1 Depth Buffer Clear
  39  *   - 7.5.3.2 Depth Buffer Resolve
  40  *   - 7.5.3.3 Hierarchical Depth Buffer Resolve
  41  */
  42 enum gen6_hiz_op {
  43    GEN6_HIZ_OP_DEPTH_CLEAR,
  44    GEN6_HIZ_OP_DEPTH_RESOLVE,
  45    GEN6_HIZ_OP_HIZ_RESOLVE,
  46 };
  47
  48 /**
  49  * \name HiZ internals
  50  * \{
  51  *
  52  * Used internally by gen6_hiz_exec() and gen7_hiz_exec().
  53  */
  54
  55 void
  56 gen6_hiz_init(struct brw_context *brw);
  57
  58 void
  59 gen6_hiz_emit_batch_head(struct brw_context *brw);
  60
  61 void
  62 gen6_hiz_emit_vertices(struct brw_context *brw,
  63                        struct intel_mipmap_tree *mt,
  64                        unsigned int level,
  65                        unsigned int layer);
  66
  67 void
  68 gen6_hiz_emit_depth_stencil_state(struct brw_context *brw,
  69                                   enum gen6_hiz_op op,
  70                                   uint32_t *out_offset);
  71 /** \} */
  72
  73 void
  74 gen6_resolve_hiz_slice(struct intel_context *intel,
  75                        struct intel_mipmap_tree *mt,
  76                        uint32_t level,
  77                        uint32_t layer);
  78
  79 void
  80 gen6_resolve_depth_slice(struct intel_context *intel,
  81                          struct intel_mipmap_tree *mt,
  82                          uint32_t level,
  83                          uint32_t layer);
  84
  85 #ifdef __cplusplus
  86 }
  87 #endif