src/gallium/drivers/ilo/core/ilo_state_cc.h

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2015 LunarG, Inc.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Chia-I Wu <olv@lunarg.com>
  26  */
  27
  28 #ifndef ILO_STATE_CC_H
  29 #define ILO_STATE_CC_H
  30
  31 #include "genhw/genhw.h"
  32
  33 #include "ilo_core.h"
  34 #include "ilo_dev.h"
  35
  36 /*
  37  * From the Sandy Bridge PRM, volume 2 part 1, page 38:
  38  *
  39  *     "Render Target Index. Specifies the render target index that will be
  40  *      used to select blend state from BLEND_STATE.
  41  *      Format = U3"
  42  */
  43 #define ILO_STATE_CC_BLEND_MAX_RT_COUNT 8
  44
  45 enum ilo_state_cc_dirty_bits {
  46    ILO_STATE_CC_3DSTATE_WM_DEPTH_STENCIL           = (1 << 0),
  47    ILO_STATE_CC_3DSTATE_PS_BLEND                   = (1 << 1),
  48    ILO_STATE_CC_DEPTH_STENCIL_STATE                = (1 << 2),
  49    ILO_STATE_CC_BLEND_STATE                        = (1 << 3),
  50    ILO_STATE_CC_COLOR_CALC_STATE                   = (1 << 4),
  51 };
  52
  53 /**
  54  * AlphaCoverage and AlphaTest.
  55  */
  56 struct ilo_state_cc_alpha_info {
  57    bool cv_sample_count_one;
  58    bool cv_float_source0_alpha;
  59
  60    bool alpha_to_coverage;
  61    bool alpha_to_one;
  62
  63    bool test_enable;
  64    enum gen_compare_function test_func;
  65 };
  66
  67 struct ilo_state_cc_stencil_op_info {
  68    enum gen_compare_function test_func;
  69    enum gen_stencil_op fail_op;
  70    enum gen_stencil_op zfail_op;
  71    enum gen_stencil_op zpass_op;
  72 };
  73
  74 /**
  75  * StencilTest.
  76  */
  77 struct ilo_state_cc_stencil_info {
  78    bool cv_has_buffer;
  79
  80    bool test_enable;
  81    bool twosided_enable;
  82
  83    struct ilo_state_cc_stencil_op_info front;
  84    struct ilo_state_cc_stencil_op_info back;
  85 };
  86
  87 /**
  88  * DepthTest.
  89  */
  90 struct ilo_state_cc_depth_info {
  91    bool cv_has_buffer;
  92
  93    bool test_enable;
  94    /* independent from test_enable */
  95    bool write_enable;
  96
  97    enum gen_compare_function test_func;
  98 };
  99
 100 struct ilo_state_cc_blend_rt_info {
 101    bool cv_has_buffer;
 102    bool cv_is_unorm;
 103    bool cv_is_integer;
 104
 105    uint8_t argb_write_disables;
 106
 107    bool logicop_enable;
 108    enum gen_logic_op logicop_func;
 109
 110    bool blend_enable;
 111    bool force_dst_alpha_one;
 112    enum gen_blend_factor rgb_src;
 113    enum gen_blend_factor rgb_dst;
 114    enum gen_blend_function rgb_func;
 115    enum gen_blend_factor a_src;
 116    enum gen_blend_factor a_dst;
 117    enum gen_blend_function a_func;
 118 };
 119
 120 /**
 121  * ColorBufferBlending, Dithering, and LogicOps.
 122  */
 123 struct ilo_state_cc_blend_info {
 124    const struct ilo_state_cc_blend_rt_info *rt;
 125    uint8_t rt_count;
 126
 127    bool dither_enable;
 128 };
 129
 130 struct ilo_state_cc_stencil_params_info {
 131    uint8_t test_ref;
 132    uint8_t test_mask;
 133    uint8_t write_mask;
 134 };
 135
 136 /**
 137  * CC parameters.
 138  */
 139 struct ilo_state_cc_params_info {
 140    float alpha_ref;
 141
 142    struct ilo_state_cc_stencil_params_info stencil_front;
 143    struct ilo_state_cc_stencil_params_info stencil_back;
 144
 145    float blend_rgba[4];
 146 };
 147
 148 /**
 149  * Pixel processing.
 150  */
 151 struct ilo_state_cc_info {
 152    struct ilo_state_cc_alpha_info alpha;
 153    struct ilo_state_cc_stencil_info stencil;
 154    struct ilo_state_cc_depth_info depth;
 155    struct ilo_state_cc_blend_info blend;
 156
 157    struct ilo_state_cc_params_info params;
 158 };
 159
 160 struct ilo_state_cc {
 161    uint32_t ds[3];
 162
 163    uint8_t blend_state_count;
 164    uint32_t blend[1 + 1 + 2 * ILO_STATE_CC_BLEND_MAX_RT_COUNT];
 165
 166    uint32_t cc[6];
 167 };
 168
 169 struct ilo_state_cc_delta {
 170    uint32_t dirty;
 171 };
 172
 173 bool
 174 ilo_state_cc_init(struct ilo_state_cc *cc,
 175                   const struct ilo_dev *dev,
 176                   const struct ilo_state_cc_info *info);
 177
 178 bool
 179 ilo_state_cc_set_info(struct ilo_state_cc *cc,
 180                       const struct ilo_dev *dev,
 181                       const struct ilo_state_cc_info *info);
 182
 183 bool
 184 ilo_state_cc_set_params(struct ilo_state_cc *cc,
 185                         const struct ilo_dev *dev,
 186                         const struct ilo_state_cc_params_info *params);
 187
 188 void
 189 ilo_state_cc_full_delta(const struct ilo_state_cc *cc,
 190                         const struct ilo_dev *dev,
 191                         struct ilo_state_cc_delta *delta);
 192
 193 void
 194 ilo_state_cc_get_delta(const struct ilo_state_cc *cc,
 195                        const struct ilo_dev *dev,
 196                        const struct ilo_state_cc *old,
 197                        struct ilo_state_cc_delta *delta);
 198
 199 #endif /* ILO_STATE_CC_H */