71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
/*
|
|
* Copyright  2019 Alyssa Rosenzweig
|
|
*
|
|
* 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 (including the next
|
|
* paragraph) 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.
|
|
*
|
|
*/
|
|
|
|
#ifndef NIR_BLEND_H
|
|
#define NIR_BLEND_H
|
|
|
|
#include "compiler/nir/nir.h"
|
|
#include "pipe/p_format.h"
|
|
|
|
/* These structs encapsulates the blend state such that it can be lowered
|
|
* cleanly
|
|
*/
|
|
|
|
typedef struct {
|
|
enum blend_func func;
|
|
|
|
enum blend_factor src_factor;
|
|
bool invert_src_factor;
|
|
|
|
enum blend_factor dst_factor;
|
|
bool invert_dst_factor;
|
|
} nir_lower_blend_channel;
|
|
|
|
typedef struct {
|
|
nir_lower_blend_channel rgb;
|
|
nir_lower_blend_channel alpha;
|
|
|
|
/* 4-bit colormask. 0x0 for none, 0xF for RGBA, 0x1 for R */
|
|
unsigned colormask;
|
|
} nir_lower_blend_rt;
|
|
|
|
typedef struct {
|
|
nir_lower_blend_rt rt[8];
|
|
enum pipe_format format[8];
|
|
|
|
bool logicop_enable;
|
|
unsigned logicop_func;
|
|
|
|
nir_ssa_def *src1;
|
|
|
|
/* If set, will use load_blend_const_color_{r,g,b,a}_float instead of
|
|
* load_blend_const_color_rgba */
|
|
bool scalar_blend_const;
|
|
} nir_lower_blend_options;
|
|
|
|
void nir_lower_blend(nir_shader *shader,
|
|
const nir_lower_blend_options *options);
|
|
|
|
#endif
|