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/*
* Mesa 3-D graphics library
*
* Copyright (C) 2015 LunarG, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Chia-I Wu <olv@lunarg.com>
*/
#ifndef ILO_STATE_CC_H
#define ILO_STATE_CC_H
#include "genhw/genhw.h"
#include "ilo_core.h"
#include "ilo_dev.h"
/*
* From the Sandy Bridge PRM, volume 2 part 1, page 38:
*
* "Render Target Index. Specifies the render target index that will be
* used to select blend state from BLEND_STATE.
* Format = U3"
*/
#define ILO_STATE_CC_BLEND_MAX_RT_COUNT 8
enum ilo_state_cc_dirty_bits {
ILO_STATE_CC_3DSTATE_WM_DEPTH_STENCIL = (1 << 0),
ILO_STATE_CC_3DSTATE_PS_BLEND = (1 << 1),
ILO_STATE_CC_DEPTH_STENCIL_STATE = (1 << 2),
ILO_STATE_CC_BLEND_STATE = (1 << 3),
ILO_STATE_CC_COLOR_CALC_STATE = (1 << 4),
};
/**
* AlphaCoverage and AlphaTest.
*/
struct ilo_state_cc_alpha_info {
bool cv_sample_count_one;
bool cv_float_source0_alpha;
bool alpha_to_coverage;
bool alpha_to_one;
bool test_enable;
enum gen_compare_function test_func;
};
struct ilo_state_cc_stencil_op_info {
enum gen_compare_function test_func;
enum gen_stencil_op fail_op;
enum gen_stencil_op zfail_op;
enum gen_stencil_op zpass_op;
};
/**
* StencilTest.
*/
struct ilo_state_cc_stencil_info {
bool cv_has_buffer;
bool test_enable;
bool twosided_enable;
struct ilo_state_cc_stencil_op_info front;
struct ilo_state_cc_stencil_op_info back;
};
/**
* DepthTest.
*/
struct ilo_state_cc_depth_info {
bool cv_has_buffer;
bool test_enable;
/* independent from test_enable */
bool write_enable;
enum gen_compare_function test_func;
};
struct ilo_state_cc_blend_rt_info {
bool cv_has_buffer;
bool cv_is_unorm;
bool cv_is_integer;
uint8_t argb_write_disables;
bool logicop_enable;
enum gen_logic_op logicop_func;
bool blend_enable;
bool force_dst_alpha_one;
enum gen_blend_factor rgb_src;
enum gen_blend_factor rgb_dst;
enum gen_blend_function rgb_func;
enum gen_blend_factor a_src;
enum gen_blend_factor a_dst;
enum gen_blend_function a_func;
};
/**
* ColorBufferBlending, Dithering, and LogicOps.
*/
struct ilo_state_cc_blend_info {
const struct ilo_state_cc_blend_rt_info *rt;
uint8_t rt_count;
bool dither_enable;
};
struct ilo_state_cc_stencil_params_info {
uint8_t test_ref;
uint8_t test_mask;
uint8_t write_mask;
};
/**
* CC parameters.
*/
struct ilo_state_cc_params_info {
float alpha_ref;
struct ilo_state_cc_stencil_params_info stencil_front;
struct ilo_state_cc_stencil_params_info stencil_back;
float blend_rgba[4];
};
/**
* Pixel processing.
*/
struct ilo_state_cc_info {
struct ilo_state_cc_alpha_info alpha;
struct ilo_state_cc_stencil_info stencil;
struct ilo_state_cc_depth_info depth;
struct ilo_state_cc_blend_info blend;
struct ilo_state_cc_params_info params;
};
struct ilo_state_cc {
uint32_t ds[3];
uint8_t blend_state_count;
uint32_t blend[1 + 1 + 2 * ILO_STATE_CC_BLEND_MAX_RT_COUNT];
uint32_t cc[6];
};
struct ilo_state_cc_delta {
uint32_t dirty;
};
bool
ilo_state_cc_init(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_info *info);
bool
ilo_state_cc_set_info(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_info *info);
bool
ilo_state_cc_set_params(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_params_info *params);
void
ilo_state_cc_full_delta(const struct ilo_state_cc *cc,
const struct ilo_dev *dev,
struct ilo_state_cc_delta *delta);
void
ilo_state_cc_get_delta(const struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc *old,
struct ilo_state_cc_delta *delta);
#endif /* ILO_STATE_CC_H */
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